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WO2024051118A1 - Système d'anesthésie, machine d'anesthésie et procédé de commande de ventilation - Google Patents

Système d'anesthésie, machine d'anesthésie et procédé de commande de ventilation Download PDF

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Publication number
WO2024051118A1
WO2024051118A1 PCT/CN2023/079715 CN2023079715W WO2024051118A1 WO 2024051118 A1 WO2024051118 A1 WO 2024051118A1 CN 2023079715 W CN2023079715 W CN 2023079715W WO 2024051118 A1 WO2024051118 A1 WO 2024051118A1
Authority
WO
WIPO (PCT)
Prior art keywords
ventilation
gas
anesthesia machine
air
ventilation device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/079715
Other languages
English (en)
Chinese (zh)
Inventor
皇甫勇
周小勇
陈轶炜
杨书望
蔡琨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Mindray Bio Medical Electronics Co Ltd
Original Assignee
Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/CN2022/117392 external-priority patent/WO2023030543A1/fr
Application filed by Shenzhen Mindray Bio Medical Electronics Co Ltd filed Critical Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority to CN202380063412.7A priority Critical patent/CN119855626A/zh
Publication of WO2024051118A1 publication Critical patent/WO2024051118A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes specially adapted for anaesthetising

Definitions

  • This application relates to the technical field of medical devices, and in particular to an anesthesia system, anesthesia machine and ventilation control method.
  • the function of the anesthesia machine is to provide inhalation anesthesia and mechanical ventilation to the patient during surgery.
  • the anesthesia ventilator With the help of the anesthesia ventilator, the patient maintains airway patency, improves ventilation and oxygenation, and prevents hypoxia and CO2 accumulation in the body. Therefore, the airway system of the anesthesia machine must be connected with the patient's respiratory system and ensure air tightness.
  • a common method is to insert an endotracheal tube into the patient's trachea through endotracheal intubation.
  • endotracheal intubation cannot be used because it will block the surgical site, making it impossible to perform the operation or because this ventilation method will cause the surgical site to change with inhalation and expiration.
  • the periodic fluctuations in ventilation affect the surgical effect.
  • additional high-frequency jet equipment such as high-frequency jet ventilators.
  • high-frequency jet ventilators such equipment is rarely equipped in anesthesia operating rooms and is not used frequently.
  • Many hospitals do not have the conditions for this kind of surgery and can only transfer Going to other hospitals for surgical treatment or using other compromise methods will greatly reduce the surgical effect and even bring surgical risks.
  • the invention provides an anesthesia system, including an anesthesia machine and a ventilation device;
  • the anesthesia machine includes a flow monitoring device, an anesthetic delivery device, a breathing circuit and a first ventilation control device;
  • the flow monitoring device is used to adjust the flow rate of the first gas;
  • the anesthetic delivery device is used to mix the first gas and the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit;
  • the breathing circuit is used to deliver the second gas to the patient;
  • the first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing periodic anesthesia respiratory support to the patient. ;
  • the ventilation device includes a second ventilation control device and a gas delivery branch;
  • the gas delivery branch is used to receive the third gas and provide periodic respiratory support to the patient; the second ventilation control device switches the flow rate at a preset frequency to control the gas delivery branch to provide periodic breathing support to the patient.
  • Sexual respiratory support ;
  • the ventilation device is used to selectively couple or decouple with the anesthesia machine; after the ventilation device is coupled with the anesthesia machine, the ventilation device provides periodic support to the patient independently of the anesthesia machine. respiratory support, Or the anesthesia system receives an operation on the ventilation device through the anesthesia machine to control the ventilation device to provide periodic respiratory support to the patient.
  • the invention provides an anesthesia system, including an anesthesia machine.
  • the anesthesia machine includes a flow monitoring device, an anesthetic delivery device, a breathing circuit and a first ventilation control device;
  • the flow monitoring device is used to adjust the flow rate of the first gas
  • the anesthetic delivery device is used to mix the first gas and anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit;
  • the breathing circuit is used to deliver the second gas to the patient
  • the first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing periodic anesthesia respiratory support to the patient;
  • the anesthesia system further includes a ventilation device, the anesthesia machine has an attachment position configured to engage with the ventilation device, the ventilation device is detachably installed on the attachment position;
  • the ventilation device includes a second housing, a second ventilation control device and a gas delivery branch, the second ventilation control device and the gas delivery branch are provided on the second housing;
  • the gas delivery branch is used to receive the third gas and provide periodic respiratory support to the patient;
  • the second ventilation control device switches the flow rate at a preset frequency to control the gas delivery branch to provide periodic respiratory support to the patient.
  • the invention provides an anesthesia machine, including a flow monitoring device, an anesthetic delivery device, a breathing circuit and a first ventilation control device;
  • the flow monitoring device is used to adjust the flow rate of the first gas
  • the anesthetic delivery device is used to mix the first gas and anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit;
  • the breathing circuit is used to deliver the second gas to the patient
  • the first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, thereby providing periodic anesthesia respiratory support to the patient;
  • the anesthesia machine has an attachment location configured to be provided with a first joint;
  • the first joint includes at least one of the following: a fixed structure for connecting an external ventilation device to the anesthesia machine, A gas source connector for delivering the first gas to an external ventilation device, an auxiliary power output interface for providing electrical energy to the external ventilation device, and an auxiliary signal output interface for signal transmission with the external ventilation device.
  • the present invention provides an anesthesia machine, which includes an anesthesia machine host and a flow monitoring device.
  • devices anesthetic delivery devices, breathing circuits, first ventilation control devices, human-computer interaction devices and ventilation devices;
  • the flow monitoring device is used to adjust the flow rate of the first gas
  • the anesthetic delivery device is connected to the flow monitoring device and is used to mix the first gas and the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit;
  • the breathing circuit is used to deliver the second gas to the patient
  • the first ventilation control device is used to control the breathing circuit to deliver the second gas to the patient, so that the anesthesia machine provides periodic anesthesia breathing support to the patient;
  • the ventilation device is used to receive the first gas and provide periodic respiratory support to the patient by delivering the first gas to the patient; wherein at least part of the ventilation device is provided inside the main body of the anesthesia machine ;as well as
  • the human-computer interaction device is used to receive the respiratory support mode provided by the anesthesia machine to the patient input by the user; the anesthesia machine provides periodic support to the patient according to the respiratory support mode received by the human-computer interaction device. Provide ongoing anesthetic respiratory support and/or provide periodic respiratory support.
  • the present invention provides a ventilation control method implemented through an interactive interface.
  • the interactive interface provides an anesthesia machine setting area and a ventilation device setting area; the method includes:
  • the interactive interface receives the anesthesia machine control information input by the user through the anesthesia machine setting area, and sends anesthesia machine control instructions to the anesthesia machine that has established a communication connection according to the anesthesia machine control information, so that the anesthesia machine controls the anesthesia machine according to the anesthesia machine control information.
  • the anesthesia machine control instructions provide periodic anesthesia respiratory support to the patient;
  • the interactive interface receives ventilation device control information input by the user through the ventilation device setting area, and sends ventilation device control instructions to the ventilation device that has established a communication connection based on the ventilation device control information, so that the ventilation device can be configured according to the ventilation device control information.
  • Ventilation device control instructions provide periodic respiratory support to the patient;
  • anesthesia machine and the ventilation device connected to the interactive interface can be selectively coupled or decoupled.
  • Figure 1 is a schematic structural diagram of an anesthesia system provided by an embodiment of the present application.
  • Figure 2 is a structural block diagram of the anesthesia system in Figure 1 in one embodiment
  • Figure 3 is a structural block diagram of the anesthesia system in Figure 1 in yet another embodiment
  • Figure 4 is a structural block diagram of the anesthesia system in Figure 1 in yet another embodiment
  • Figure 5 is a structural block diagram of the anesthesia system in Figure 1 in another embodiment
  • Figure 6 is a structural block diagram of the anesthesia machine of the anesthesia system in Figure 1;
  • FIG 7 is a structural block diagram of the ventilation device of the anesthesia system in Figure 1;
  • Figure 8 is a gas circuit diagram of the ventilation device of the anesthesia system in Figure 1;
  • FIG. 9 is a gas circuit diagram of the ventilation device of the anesthesia system in Figure 1;
  • Figure 10 is a gas path diagram of the ventilation device of the anesthesia system in Figure 1;
  • FIG 11 is a gas circuit diagram of the ventilation device of the anesthesia system in Figure 1;
  • Figure 12 is a gas circuit diagram of the ventilation device of the anesthesia system in Figure 1;
  • Figure 13 is a schematic diagram of the main monitoring interface on the display of the anesthesia machine in Figure 1;
  • Figure 14 is a pressure waveform diagram displayed on the display of the anesthesia machine provided by the present invention.
  • Ventilation device 201. Pressure stabilizing device; 202. Second control valve; 202a, first control valve; 202b, third control valve; 203. First pressure monitoring device; 203a, first oxygen pressure sensor; 203b. First air pressure sensor; 204, flow sensor; 204a, first flow sensor; 204b, second flow sensor; 205, safety valve; 206, second pressure monitoring device; 207, injection accessory; 208, third pressure monitoring device ;
  • 300, 300’ air source interface
  • 300a oxygen interface
  • 300b air interface
  • the present application provides an anesthesia system, including an anesthesia machine 100 and a ventilation device 200 , wherein the ventilation device 200 is used to selectively couple with the anesthesia machine 100 or Decoupling.
  • the ventilation device 200 can independently provide periodic respiratory support to the patient 400, or the ventilation device 200 can provide periodic respiratory support to the patient 400 through the control of the anesthesia machine 100.
  • This not only saves space but is shared.
  • Part of the pipeline system or operating system of the anesthesia machine 100 reduces the manufacturing cost of the anesthesia system and does not require additional ventilation equipment; at the same time, it is also possible to choose to provide periodic respiratory support or periodic anesthesia respiratory support to the patient 400. Meet the needs of 400 different physiological conditions of different patients.
  • the ventilation device 200 when the ventilation device 200 is decoupled from the anesthesia machine 100, the ventilation device 200 can independently provide periodic respiratory support to the patient 400; when the ventilation device 200 is coupled with the anesthesia machine 100, the ventilation device 200 can be independent of the anesthesia machine. 100 provides periodic respiratory support to the patient 400, or the anesthesia system receives the operation of the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400 to meet the needs of different physiological conditions of the user.
  • the coupling between the ventilation device 200 and the anesthesia machine 100 may be such that the ventilation device 200 and the anesthesia machine 100 can share a data storage system for receiving patient 400 information, or the ventilation device 200 may be attached to the data storage system of the anesthesia machine 100. In this way, 400 patient information can be shared to save management resources and improve work efficiency.
  • the coupling between the ventilation device 200 and the anesthesia machine 100 can also be a mechanical connection between the ventilation device 200 and the anesthesia machine 100 to reduce the space occupied by the ventilation device 200 so that the ventilation device 200 can be connected to the anesthesia machine 100, effectively The space of the anesthesia machine 100 is utilized, and the addition of the ventilation device 200 does not occupy too much installation space.
  • the coupling between the ventilation device 200 and the anesthesia machine 100 may also include a communication connection and/or a gas line connection between the ventilation device 200 and the anesthesia machine 100; that is, the ventilation device 200 may share the same gas source, power supply, and/or the anesthesia machine 100. or other communication devices, which effectively reduces the manufacturing cost of adding the ventilation device 200 to the anesthesia system, and also saves the space occupied by the anesthesia system.
  • the anesthesia machine 100 includes a flow monitoring device 101, an anesthetic delivery device 102, Breathing circuit 103 and first ventilation control device 104.
  • the flow monitoring device 101 is used to adjust the flow rate of the first gas
  • the anesthetic delivery device 102 is used to mix the first gas and the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit 103
  • the breathing circuit 103 is used to To deliver the second gas to the patient 400
  • the first ventilation control device 104 is used to control the breathing circuit 103 to deliver the second gas to the patient 400, so that the anesthesia machine 100 provides periodic anesthesia respiratory support to the patient 400.
  • the first gas may be oxygen, the first gas may also be air, or the first gas may be a mixed gas of oxygen and air, a mixed gas of oxygen and laughing gas, etc. Since respiratory support needs to be provided for the patient 400, the first gas provided contains at least oxygen.
  • the present application couples the ventilation device 200 to the anesthesia machine 100, so that the anesthesia system can provide periodic respiratory support through the ventilation device 200, or the anesthesia machine 100 receives operations on the ventilation device 200 to control the ventilation device 200 to provide periodic breathing support to the patient 400.
  • sexual respiratory support The periodic respiratory support provided by the ventilation device 200 may be high-frequency ventilation, low-frequency ventilation, etc.
  • the ventilation mode of the ventilation device 200 may be jet ventilation or non-jet ventilation.
  • the ventilation device 200 includes a pressure stabilizing device 201, a second ventilation control device and a gas delivery branch, wherein the gas delivery branch is used to receive the third gas and perform periodic breathing on the patient 400.
  • the pressure stabilizing device 201 is used to maintain a stable gas supply pressure for the third gas in the input gas delivery branch and provide stable gas for the ventilation device 200;
  • the second ventilation control device switches the flow rate at a preset frequency to control
  • the gas delivery branch provides periodic respiratory support to the patient 400, so that the anesthesia system can not only control the breathing circuit 103 to provide periodic anesthesia respiratory support to the patient 400 through the first ventilation control device 104, but also through the second ventilation control device 202
  • the gas delivery branch is controlled to provide periodic respiratory support to the patient 400, or both of them provide respiratory support to different or the same patient 400 at the same time.
  • the ventilation device 200 can independently provide periodic respiratory support to the patient 400; and after the ventilation device 200 is coupled with the anesthesia machine 100, the ventilation device 200 can independently The anesthesia machine 100 provides periodic respiratory support to the patient 400, or the anesthesia system can receive operations on the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400.
  • the anesthesia machine 100 provides periodic anesthesia respiratory support to the patient 400
  • the ventilation device 200 provides periodic respiratory support to the patient 400
  • the flow rate of gas delivery to the patient in a respiratory cycle is that the expiratory phase is smaller than the inspiratory phase.
  • the common point between the two may also be that gas delivery is not provided to the patient 400 for at least part of the time in a respiratory cycle.
  • the gas delivered by periodic anesthesia respiratory support includes anesthetics, while the gas delivered by periodic respiratory support does not contain anesthetics.
  • the third gas may be the same as the first gas, or may be different from the first gas.
  • the third gas is oxygen and the first gas is air; or the third gas is oxygen and the first gas is oxygen; or the third gas is a mixed gas of oxygen and air, etc.
  • the ventilation device 200 and the anesthesia machine 100 may share an output interface. In these embodiments, due to the limitation of only one output interface, only one of the ventilation device 200 and the anesthesia machine 100 may be in working state.
  • the ventilation device 200 and the anesthesia machine 100 each have independent output interfaces.
  • ventilation device 200 and anesthesia machine 100 may operate independently.
  • independent start switches can be configured for the ventilation device 200 and the anesthesia machine 100 to control the two independently; or, the anesthesia machine 100 can be configured with a main switch, which requires the ventilation device 200 and the anesthesia machine 100 to be started independently or When closed, it is controlled by the anesthesia machine 100.
  • the anesthesia machine 100 includes a first housing
  • the ventilation device 200 includes a second housing
  • the first housing has an attachment location configured to engage the ventilation device 200; the attachment location forms There is an installation position matching the second housing of the ventilation device 200.
  • the ventilation device 200 is at least partially accommodated in the installation position. In this way, not only can the ventilation device 200 be quickly fixed on the anesthesia machine 100, but the space occupied by the anesthesia system will not be increased by adding the ventilation device 200, and the functions of the anesthesia machine 100 itself and the functions added by the ventilation device 200 can be realized. compatible.
  • the attachment position is also provided with an auxiliary output interface
  • the ventilation device 200 is provided with an input interface.
  • the input interface is used to connect to the auxiliary output interface to obtain electrical energy from the anesthesia machine 100 or communicate with the anesthesia machine 100 Realizing communication allows the anesthesia machine 100 to provide power or communication control for the ventilation device 200, thereby reducing the manufacturing cost of the ventilation device 200.
  • the ventilation device 200 is communicatively connected to the anesthesia machine 100 through an input interface and an auxiliary output interface, so that the human-computer interaction device on the anesthesia machine 100 can be used to receive the respiratory support method provided by the ventilation device 200 to the patient 400 .
  • trigger buttons providing different breathing support modes can be displayed on the human-computer interaction device.
  • the anesthesia machine 100 can decide whether to use the ventilation device 200 to provide periodic respiratory support to the patient 400 or to use the first ventilation control device 104 to control the breathing circuit 103 to perform periodic respiratory support on the patient 400 according to the respiratory support mode received by the human-computer interaction device.
  • Anesthesia respiratory support, or both provide respiratory support to 400 different patients at the same time.
  • the attachment position is further provided with a gas source connector for providing the first gas
  • the ventilation device 200 further includes a gas source interface 300 for providing a third gas.
  • the gas source interface 300 is connected to the gas source connector to receive the first gas through the gas source connector instead of the third gas. There is no need to add a new gas source module.
  • the anesthesia machine 100 can The air source module directly supplies air to the ventilation device 200.
  • the anesthesia machine 100 includes a gas source module, and the gas source module is used to provide the anesthesia machine 100 with The required gas is provided as the first gas.
  • the air source interface 300 is connected to the air source connector, so that the air source module can supply air to the ventilation device 200 through the air source connector.
  • the air source module can also be an air compressor, an oxygen generator, etc., and can generate the first gas required by the anesthesia machine 100 by itself.
  • the gas source module may also be a gas supply interface.
  • the gas supply interface is used to connect an external gas source.
  • the external gas source provides the gas required by the anesthesia machine 100 to the anesthesia machine 100 and/or the ventilation device 200 through the gas supply interface.
  • the anesthesia machine 100 includes a first communication module
  • the ventilation device 200 includes a second communication module.
  • the second communication module is used to establish a communication connection with the first communication module to realize the communication between the ventilation device 200 and the anesthesia machine.
  • the selective coupling of 100 enables the anesthesia system to receive operations on the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200 to provide periodic respiratory support to the patient 400.
  • the ventilation device 200 is controlled, which effectively reduces the manufacturing cost of the anesthesia system; at the same time, it is convenient for medical staff to use without having to adapt to a new operating system or operating interface. That is, the user can control the ventilation device 200 through the human-computer interaction device of the anesthesia machine 100 Perform operations.
  • Figure 13 is a display interface provided by the human-computer interaction device.
  • the display interface can display the working information of the ventilation device 200 and/or provide a control interface of the ventilation device 200.
  • the control interface is used to receive user input to control Ventilator 200 performs control.
  • the main monitoring interface on the display interface includes the ventilation mode switching area P1.
  • the ventilation device 200 can be controlled to start and provide periodic high-frequency jet ventilation to the patient 400 .
  • the pressure monitored during high-frequency jet ventilation will be displayed in the pressure waveform area P2 of the main monitoring interface.
  • other ventilation mode icons in the ventilation mode switching area P1 can be selected, such as the “VCV” icon.
  • the first ventilation control device 104 can control the breathing circuit 103 to the patient. 400 provides periodic anesthetic respiratory support.
  • the anesthesia machine 100 includes a gas source connector for providing a first gas
  • the ventilation device 200 further includes a gas source interface 300
  • the gas source interface 300 is used to communicate with The air source connector is connected to realize selective coupling between the ventilation device 200 and the anesthesia machine 100 .
  • the ventilation device 200 can also be connected to external air sources, such as gas delivery pipes, gas bottles, etc. in the hospital, through the air source interface 300.
  • the air source interface 300 includes but is not limited to the oxygen interface 300a, the air interface 300b and the oxygen interface 300b. Air interface, etc.
  • the ventilation method provided by the ventilation device 200 may be high-frequency ventilation, which mainly forms high-frequency airflow by switching the flow rate according to a preset frequency by the second ventilation control device.
  • high-frequency air flow refers to gas whose output frequency is greater than a certain critical value, such as gas whose output frequency is greater than or equal to 2Hz, or For example, the output frequency is greater than or equal to 3Hz gas.
  • the application provides an anesthesia system, including an anesthesia machine 100 and a ventilation device 200 removably installed on the anesthesia machine 100.
  • the anesthesia machine 100 includes a flow monitoring device. 101.
  • the flow monitoring device 101 is used to adjust the flow rate of the first gas.
  • the anesthetic delivery device 102 is used to mix the first gas and the anesthetic to obtain the second gas.
  • the breathing circuit 103 is used to deliver the second gas to the patient 400
  • the first ventilation control device 104 is used to control the breathing circuit 103 to
  • the second gas is delivered to the patient 400 to provide periodic anesthesia respiratory support to the patient 400.
  • the ventilation device 200 is used to provide periodic respiratory support to the patient 400.
  • the anesthesia machine 100 has an attachment position configured to engage with the ventilation device 200, and the ventilation device 200 is detachably installed at the attachment position.
  • the ventilation device 200 includes a second housing, a second ventilation control device and a gas delivery branch.
  • the gas delivery branch is used to receive the third gas and provide periodic respiratory support to the patient 400.
  • the second ventilation The control device 202 switches the flow rate at a preset frequency to control the gas delivery branch to provide periodic respiratory support to the patient 400 .
  • the second ventilation control device and the gas delivery branch are both provided on the second housing, and the second housing can be detachably installed at the attachment position so that the ventilation device 200 can be installed on the anesthesia machine according to the needs of clinical scenarios. 100 to provide corresponding respiratory support to the patient 400.
  • the anesthesia machine 100 has an attachment position configured to engage with the ventilation device 200 , so that the ventilation device 200 can be detachably installed on the anesthesia machine 100 , not only can the ventilation device 200 be quickly fixed on the anesthesia machine 100
  • the anesthesia machine 100 does not occupy the space of the anesthesia machine 100 , and the anesthesia system realizes compatibility between the own functions of the anesthesia machine 100 and the added functions of the ventilation device 200 .
  • a first joint is provided at the attachment position of the anesthesia machine 100 and a second joint is provided on the ventilation device 200.
  • the first joint is engaged with the second joint to attach the anesthesia machine 100 to the second joint.
  • the ventilation device 200 and the anesthesia machine 100 are coupled at the connection position, so that the ventilation device 200 can be quickly installed on the anesthesia machine 100.
  • connection between the first joint member and the second joint member may include mechanical coupling between the ventilation device 200 and the anesthesia machine 100 , or may include electrical or gas circuit coupling between the ventilation device 200 and the anesthesia machine 100 , so that the anesthesia machine 100 It can provide air source, power supply and/or communication support for the ventilation device 200, which is not limited by this application.
  • the first joint includes a fixing structure disposed at an attachment position of the anesthesia machine 100 and the second joint includes a mating structure configured for mating on the fixing structure, the mating structure being connected to the fixing structure.
  • one of the fixed structure and the matching structure can be a magnetic adsorption piece, and the other of the fixed structure and the matching structure can be a metal adsorption piece or a magnetic adsorption piece, so that the ventilation device 200 can be adsorbed on the fixed structure through the cooperation of the matching structure and the fixed structure.
  • one of the fixed structure and the matching structure is a buckle part, and the other of the fixed structure and the matching structure is a slot part, so that the ventilation device 200 can be fixed with the fitting structure through the matching structure.
  • the matching structure is snapped onto the anesthesia machine 100; alternatively, one of the fixed structure and the matching structure is a Velcro hook surface, and the other of the fixed structure and the matching structure is a Velcro rough surface, so that the ventilation device 200 can pass through the matching structure.
  • the combination of the structure and the fixed structure is pasted on the anesthesia machine 100 .
  • the fixing structure includes a support arm arranged outside or inside the anesthesia machine 100 , and the ventilation device 200 is fixed on the support arm through a matching structure; or, the fixing structure includes a support arm arranged outside or inside the anesthesia machine 100
  • the ventilation device 200 is embedded in the concave structure through a matching structure; or the attachment position is a notch or slot provided on the outside of the anesthesia machine 100, and the fixing structure includes a connector provided in the notch or slot, and the ventilation device 200 A detachable connection is formed with the connecting piece through a matching structure.
  • the ventilation device 200 further includes a gas source interface 300 for providing a third gas
  • the gas source interface 300 is connected to the second ventilation control device through a gas delivery branch.
  • the first joint part includes an air source connector disposed at the attachment position
  • the second joint part includes the above-mentioned air source interface 300.
  • the air source interface 300 is connected in the air source joint so that the anesthesia machine 100 can pass through the air source joint.
  • the first gas is supplied to the gas source interface 300 to replace the third gas.
  • the ventilation device 200 can also be fixed on the anesthesia machine 100 through the connection between the gas source connector and the gas source interface 300 .
  • the air source interface 300 is connected to an external air source. At this time, the air source interface 300 is only used to provide the third gas to the ventilation device 200, and the ventilation device 200 needs to be fixed through the cooperation of the first joint member and the second joint member. On the anesthesia machine 100.
  • the ventilation device 200 further includes an output port, and the second ventilation control device is connected to the output port, so that the third gas output by the output port can form a periodic air flow.
  • the first joint member also includes an output joint disposed at the attachment position, and the second joint member includes the above-mentioned output port, and the output port is connected to the output joint, so that the third gas is output to the anesthesia machine 100 through the output port and the output joint. internally, and then provide periodic respiratory support to the patient 400 through the anesthesia machine 100.
  • the ventilation device 200 only needs to set a second ventilation control device on the gas delivery branch, and
  • the remaining ventilation accessories can be shared with the anesthesia machine 100 or attached to the ventilation accessories of the anesthesia machine 100 , such as the pressure stabilizing valve, flow monitoring device 101 , pressure monitoring device and safety valve 205 inside the anesthesia machine 100 , effectively reducing the cost of the ventilation device 200
  • the manufacturing cost is reduced, and at the same time, the ventilation device 200 can be fixed on the anesthesia machine 100 through the cooperation of the output port and the output connector connection.
  • the output port of the ventilation device 200 is connected to the injection accessory 207 so that the third gas can be output through the injection accessory 207. That is, the ventilation device 200 can independently ventilate the patient 400 according to the actual condition and ventilation needs of the patient 400.
  • the spray attachment 207 may also be part of the accessories of the anesthesia machine 100 , that is, the anesthesia machine 100 includes the spray attachment 207 connected to the ventilation device 200 .
  • the ventilation device 200 needs to be fixed on the anesthesia machine 100 through the cooperation of the first joint part and the second joint part.
  • the anesthesia machine 100 further includes a gas source module for providing the first gas, and the gas source module is connected to the anesthetic delivery device 102 through the flow monitoring device 101 .
  • the ventilation device 200 further includes a gas source interface 300. The ventilation device 200 is connected to the gas source module through the gas source interface 300, so that the gas source module can provide the first gas to the ventilation device 200.
  • the gas source module is used to provide gas required by the anesthesia machine 100, that is, to provide the first gas.
  • the air source module supplies air to the ventilation device 200 through the air source interface 300.
  • the air source module can also be an air compressor, an oxygen generator, etc., and can generate the first gas required by the anesthesia machine 100 by itself.
  • the gas source module may also be a gas supply interface.
  • the gas supply interface is used to connect an external gas source.
  • the external gas source provides the gas required by the anesthesia machine 100 to the anesthesia machine 100 and/or the ventilation device 200 through the gas supply interface.
  • the gas source module includes an oxygen unit, and the first gas includes oxygen provided by the oxygen unit; wherein the gas delivery branch includes an oxygen branch 200a, and the gas source interface 300 includes oxygen The interface 300a, one end of the oxygen gas path 200a is connected with the oxygen interface 300a, oxygen is input from the oxygen interface, and the other end of the oxygen gas path 200a transports the input oxygen to the second ventilation control device, and the second ventilation control device is configured as The flow rate is switched at a certain frequency, which can be used to control the oxygen flow of the oxygen branch, and can also cause the oxygen output from the output port to form a high-frequency air flow, thereby providing periodic high-frequency ventilation for the patient 400.
  • the second ventilation control device includes, for example, a second control valve 202 .
  • the air source module includes an air unit, and the first gas includes air provided by the air unit; wherein the gas delivery branch includes an air branch 200b, and the air source interface 300 includes air interface, one end of the air branch 200b is connected to the air interface, air is input from the air interface, and the other end of the air branch transports the input air to the second ventilation control device, and the second ventilation control device controls the flow rate at the set frequency
  • the large and small switching can be used to control the air flow of the air branch, and can also cause the air output from the output port to form a high-frequency air flow, thereby providing periodic high-frequency ventilation for the patient 400.
  • the second ventilation control device includes, for example, a second control valve 202 .
  • the gas source module includes an oxygen unit for providing oxygen and an air unit for providing air
  • the first gas includes oxygen provided by the oxygen unit and air provided by the air unit.
  • the gas delivery branch includes an oxygen branch 200a, an air branch 200b and a mixed gas circuit 200c.
  • the gas source interface 300 includes an oxygen interface 300a and an air interface 300b. The air inlet end of the oxygen branch is connected to the oxygen interface 300a.
  • the oxygen interface 300a inputs oxygen; the air inlet end of the air branch is connected to the air interface 300b, and air is input from the air interface 300b; the ends of the oxygen branch 200a and the air branch 200b are connected to the mixed gas circuit, and the mixed gas circuit connects the oxygen branch
  • the input oxygen and the air input from the air branch are mixed and transported to the second ventilation control device.
  • the second ventilation control device switches the flow rate at the set frequency.
  • the gas output from the output port forms a high-frequency air flow, thereby achieving 400 airflow for the patient.
  • the second ventilation control device includes, for example, a second control valve 202 .
  • ventilation device 200 also includes a second regulating valve and a third regulating valve.
  • the second regulating valve is installed on the oxygen branch to control the oxygen flow of the oxygen branch; the third regulating valve is installed on the air branch to control the air flow of the air branch.
  • the gas source module includes an oxygen unit for providing oxygen and an air unit for providing air
  • the first gas includes oxygen provided by the oxygen unit and air provided by the air unit.
  • the gas delivery branch includes an oxygen branch, an air branch and a mixed gas circuit
  • the gas source interface 300 includes an oxygen interface 300a and an air interface 300b
  • the second ventilation control device includes a first control valve 202a and a third control valve 202b
  • the inlet end of the oxygen branch is connected to the oxygen interface 300a.
  • Oxygen is input from the oxygen interface 300a and transported to the first control valve 202a.
  • the first control valve 202a switches the flow rate at a set frequency, which can be used to control oxygen.
  • the oxygen flow rate of the branch can also cause the oxygen at the output end of the first control valve 202a to form a high-frequency air flow;
  • the air inlet end of the air branch is connected to the air interface 300b, and air is input from the air interface 300b and transported to the third control valve 202b , the third control valve 202b switches the flow rate at a set frequency, which can be used to control the air flow of the air branch, or to form a high-frequency air flow out of the air output from the output end of the third control valve 202b; mixed gas
  • the oxygen input from the first control valve 202a is mixed with the air input from the third control valve 202b and delivered to the patient 400 to provide periodic high-frequency ventilation.
  • the ventilation device 200 also includes a pressure stabilizing device 201.
  • the voltage stabilizing device 201 is provided at the gas source interface 300' to provide stable gas for the ventilation device 200.
  • the pressure stabilizing device 201 includes a first pressure stabilizing valve 201a and a second pressure stabilizing valve 201b.
  • the first pressure stabilizing valve 201a is provided on the oxygen branch to provide stable oxygen to the oxygen branch; the second pressure stabilizing valve 201a is provided on the oxygen branch.
  • the pressure stabilizing valve 201b is provided on the air branch to provide stable air for the air branch.
  • the ventilation device 200 further includes a pressure monitoring device, which is disposed in the gas delivery branch and used to monitor the pressure of the gas delivery branch.
  • the pressure monitoring device includes a first pressure monitoring device 203, a second pressure monitoring device 206 and a third pressure monitoring device 208.
  • the first pressure monitoring device 203 is provided in the gas delivery branch for monitoring the gas delivery branch.
  • the pressure of It is used to monitor the pressure at the patient's 400 end to prevent barotrauma at the patient's 400 end.
  • the first pressure monitoring device 203 includes a first oxygen pressure sensor 203a and a first air pressure sensor 203b.
  • the first oxygen pressure sensor 203a is provided on the oxygen branch for monitoring the pressure of the oxygen branch. size; the first air pressure sensor 203b is provided on the air branch to monitor the pressure of the air branch.
  • the ventilation device 200 further includes a flow sensor 204.
  • the flow sensor 204 is disposed between the pressure stabilizing device 201 and the second ventilation control device for monitoring the flow rate of the gas delivery branch.
  • the flow sensor 204 includes a first flow sensor 204a and a second flow sensor 204b.
  • the first flow sensor 204a is provided on the oxygen branch and is used to monitor the flow size of the oxygen branch; the second flow sensor 204b is set on the air branch and is used to monitor the flow rate of the air branch.
  • the ventilation device 200 further includes a safety valve 205.
  • the ventilation device 200 includes an output port connected to the second ventilation control device, and the safety valve 205 is disposed between the second ventilation control device and the output port. For pressure relief of gas delivery branch.
  • the safety valve 205 is switched to separate the patient 400 end from the ventilation device 200.
  • the gas at the patient 400 end can be discharged through the ventilation device 200 to prevent the patient 400 from being discharged. Barotrauma occurs at the end.
  • the anesthesia machine 100 also includes a human-computer interaction device.
  • the ventilation mode provided by the human-computer interaction device also includes using the periodic ventilation device 200.
  • Respiratory support when the ventilation mode received by the human-computer interaction device is periodic respiratory support, the anesthesia machine 100 controls the ventilation device 200 to periodically output the third gas, and there is no need to add an additional operating system and human-computer interaction device to control the ventilation device. 200 for control, which effectively reduces the manufacturing cost of the anesthesia system; at the same time, it is convenient for medical staff to use without having to adapt to a new operating system or operating interface, that is, the user can operate the ventilation device 200 through the human-computer interaction device of the anesthesia machine 100 .
  • the ventilation device 200 after the ventilation device 200 is detached from the attachment position of the anesthesia machine 100, the ventilation device 200 independently provides periodic respiratory support, and the ventilation mode provided by the human-computer interaction device no longer includes periodic breathing support.
  • the ventilation mode of respiratory support or periodic respiratory support provided by the human-computer interaction device cannot be operated.
  • Figure 13 is a display interface provided by the human-computer interaction device.
  • the display interface can display the working information of the ventilation device 200 and/or provide a control interface of the ventilation device 200.
  • the control interface is used to receive user information. Input to control ventilator 200.
  • the main monitoring interface on the display interface includes the ventilation mode switching area P1.
  • the ventilation device 200 can be controlled to start and provide periodic high-frequency jet ventilation to the patient 400 .
  • the pressure monitored during high-frequency jet ventilation will be displayed in the pressure waveform area P2 of the main monitoring interface.
  • other ventilation mode icons in the ventilation mode switching area P1 can be selected, such as the “VCV” icon.
  • the first ventilation control device 104 can control the breathing circuit 103 to the patient. 400 provides periodic anesthetic respiratory support.
  • the ventilation mode switching area P1 of the main monitoring interface no longer supports the selection operation of periodic respiratory support provided by the ventilation device 200, for example, the period is not displayed.
  • the ventilation mode of periodic respiratory support, or the ventilation mode of periodic respiratory support provided by the human-computer interaction device cannot be operated.
  • the ventilation device 200 communicates with the anesthesia machine 100 in a wired or wireless manner.
  • the anesthesia machine 100 is provided with an information input interface
  • the ventilation device 200 is provided with an information output interface at a corresponding position.
  • the information output interface on the ventilation device 200 is connected to the information input interface.
  • the working information of the two can also be displayed through a human-computer interaction device located on the anesthesia machine 100, or the user controls the anesthesia machine 100 and the ventilation device 200 through the human-computer interaction device.
  • the anesthesia machine 100 further includes a first human-computer interaction device.
  • the working information of the ventilation device 200 is displayed through the first human-computer interaction device on the anesthesia machine 100.
  • the user can You can get the working status of the ventilation device without switching screens.
  • the ventilation device 200 further includes a second human-computer interaction device, the second human-computer interaction device is used to provide a display interface, and the display interface displays working information or provides a control interface; the first human-computer interaction device The device is also used to display the same display interface in a display window or display area, so that users who are familiar with the ventilation device 200 do not need to change their operating habits when operating the ventilation device 200 on the anesthesia machine 100 .
  • the same display interface of the human-computer interaction device of the anesthesia machine 100 includes an anesthesia machine setting area for receiving user input to control ventilation of the anesthesia machine 100, and an anesthesia machine setting area for receiving user input to control ventilation.
  • the ventilation device setting area where the device performs ventilation control that is, the same interface of the human-computer interaction device includes an anesthesia machine setting area and a ventilation device setting area.
  • the anesthesia machine setting area is used to receive user input for ventilation control of the anesthesia machine 100, and ventilation device settings.
  • the area is used to receive user input for ventilation control of the ventilation device 200 .
  • the ventilation device 200 is provided with a trigger switch; after the trigger switch is triggered, the ventilation device 200 can establish a wireless connection with the anesthesia machine 100 .
  • the ventilation device 200 when the ventilation device 200 is installed at the attachment position of the anesthesia machine 100, the ventilation device 200 will not actively establish a wireless connection with the anesthesia machine 100, and needs to be triggered by a trigger switch to prevent the anesthesia machine 100 and the ventilation device 200 from unnecessarily Relevance is also established when coupling.
  • the anesthesia machine 100 is provided with an auxiliary output interface
  • the ventilation device 200 is provided with an input interface
  • the input interface is connected to the auxiliary output interface; wherein the auxiliary output interface includes an auxiliary signal output interface and/or an auxiliary output interface.
  • the power output interface, the input interface includes a signal input interface and/or a power input interface, the signal input interface and the power input interface are connected correspondingly to the auxiliary signal output interface and the auxiliary power output interface, so that the anesthesia machine 100 can supply power to the ventilation device 200 and realize the communication with the ventilation device 200.
  • the ventilation device 200 is communicatively connected.
  • the anesthesia machine 100 is provided with an auxiliary output interface
  • the ventilation device 200 is provided with an input interface, and the input interface is connected to the auxiliary output interface; wherein the auxiliary output interface includes an auxiliary power output interface,
  • the input interface includes a power input interface, and the power input interface is connected to the auxiliary power output interface so that the anesthesia machine 100 supplies power to the ventilation device 200;
  • the anesthesia machine 100 and the ventilation device 200 also include wireless communication modules to enable the anesthesia machine 100 to communicate with the ventilation device. 200 to achieve communication.
  • the anesthesia system further includes a control terminal, and the control terminal is communicatively connected to the anesthesia machine 100 and the ventilation device 200 .
  • the control terminal sends the anesthesia machine 100 control instructions to the anesthesia machine 100 according to the anesthesia machine 100 control information input by the user, and sends the ventilation device 200 control instructions to the ventilation device 200 according to the ventilation device 200 control information input by the user;
  • the control instructions of the machine 100 control the periodic anesthesia breathing support for the patient 400;
  • the ventilation device 200 controls the periodic breathing support for the patient 400 according to the control instructions of the ventilation device 200.
  • the second ventilation control device is controlled to ventilate the patient 400 at the first ventilation frequency, thereby providing periodic respiratory support to the patient 400 .
  • the first ventilation frequency may be greater than or equal to 2 Hz, or may be greater than or equal to 3 Hz.
  • the ventilation accessory of the ventilation device 200 includes an injection accessory 207.
  • the injection accessory 207 receives the third gas output from the gas delivery branch and outputs the third gas in the form of a high-frequency injection air flow.
  • the spray accessory 207 may include a nozzle, a spray needle or a stent (such as a tracheoscope, bronchoscope, scope sheath, etc.).
  • the stent is used to support human tissue or connect the tracheal tube to facilitate the doctor's surgery.
  • the wall of the stent is provided with a Holes for air jets (e.g., holes with a diameter less than 4 mm).
  • the spray attachment 207 includes a spray channel with an output aperture of less than 4 mm.
  • the high-frequency jet airflow ventilates the patient 400 at a ventilation frequency of 50-1500 bpm.
  • the application provides an anesthesia machine 100, including a flow monitoring device 101, an anesthetic delivery device 102, a breathing circuit 103 and a first ventilation control device 104; wherein, The flow monitoring device 101 is used to adjust the flow of the first gas; the anesthetic delivery device 102 is used to mix the first gas and the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit 103; the breathing circuit 103 is used to Deliver the second gas to the patient 400; the first ventilation control device 104 is used to control the breathing circuit 103 to deliver the second gas to the patient 400, thereby providing periodic anesthesia respiratory support to the patient 400.
  • the flow monitoring device 101 is used to adjust the flow of the first gas
  • the anesthetic delivery device 102 is used to mix the first gas and the anesthetic to obtain a second gas, and deliver the second gas to the breathing circuit 103
  • the breathing circuit 103 is used to Deliver the second gas to the patient 400
  • the first ventilation control device 104 is used to control the breathing circuit 103
  • the anesthesia machine 100 has an attachment location configured to be provided with a first joint, the first joint including at least one of the following: a fixation for connecting the external ventilation device 200 to the anesthesia machine 100 structure, a gas source connector for delivering the first gas to the external ventilation device 200, an auxiliary power output interface for providing electrical energy to the external ventilation device 200, and an auxiliary signal output interface for signal transmission with the external ventilation device 200. .
  • the first joint includes a fixed structure for connecting the external ventilation device 200 to the anesthesia machine 100
  • the ventilator 200 is provided with a second joint member
  • the second joint member includes a mating structure configured for mating on a fixed structure, and the mating structure is connected in the fixed structure.
  • one of the fixed structure and the matching structure can be a magnetic adsorption piece
  • the other of the fixed structure and the matching structure can be a metal adsorption piece or a magnetic adsorption piece, so that the ventilation device 200 can be adsorbed on the fixed structure through the cooperation of the matching structure and the fixed structure.
  • one of the fixed structure and the matching structure is a buckle part, and the other of the fixed structure and the matching structure is a slot part, so that the ventilation device 200 can be buckled through the cooperation of the matching structure and the fixed structure.
  • one of the fixed structure and the matching structure is a Velcro hook surface, and the other of the fixed structure and the matching structure is a Velcro rough surface, so that the ventilation device 200 can pass through the matching structure and the fixed structure.
  • the fixing structure includes a support arm arranged outside or inside the anesthesia machine 100 , and the ventilation device 200 is fixed on the support arm through a matching structure; or, the fixing structure includes a support arm arranged outside or inside the anesthesia machine 100
  • the ventilation device 200 is embedded in the concave structure through a matching structure; or the attachment position is a notch or slot provided on the outside of the anesthesia machine 100, and the fixing structure includes a connector provided in the notch or slot, and the ventilation device 200 A detachable connection is formed with the connecting piece through a matching structure.
  • the fixed structure includes a support arm provided on the outside of the anesthesia machine 100, and the ventilation device 200 is fixed on the support arm through a matching structure; or, the fixed structure includes a support arm provided on the inside of the anesthesia machine 100, and the ventilation device 200 is fixed on the support arm through a matching structure. It is fixed on the support arm inside the anesthesia machine 100.
  • the fixed structure includes a recessed structure provided on the outside of the anesthesia machine 100, and the ventilation device is embedded in the recessed structure through a matching structure; or the fixed structure includes a recessed structure provided on the inside of the anesthesia machine 100, and the ventilation device is connected to the recessed structure through the matching structure.
  • the attachment position is a notch provided on the outside of the anesthesia machine 100, the fixed structure includes a connecting piece provided in the notch, and the ventilation device 200 forms a detachable connection with the connecting piece through the matching structure.
  • the attachment position is a slot provided on the outside of the anesthesia machine 100, the fixing structure includes a connecting piece disposed in the slot, and the ventilation device 200 forms a detachable connection with the connecting piece through the matching structure.
  • an anesthesia machine 100 provided by the present application includes a gas source module, an anesthetic delivery device 102 , a breathing circuit 103 and a first ventilation control device 104 .
  • the air source module is connected to the breathing circuit 103 through the anesthetic delivery device 102, that is, the three are connected by gas lines in sequence.
  • the gas source module is used to provide the gas required by the anesthesia machine, that is, to provide the first gas. Since respiratory support needs to be provided for the patient, the gas provided contains at least oxygen. That is, the first gas may be oxygen, air, a mixed gas of oxygen and air, or a mixed gas of oxygen and laughing gas.
  • the air source module may be an air source interface 300', and the air source interface 300' is used to connect an external air source.
  • the external air source provides the gas required by the anesthesia machine to the anesthesia machine through the air source interface.
  • the air source module can also be an air compressor, an oxygen generator, etc., which itself generates the first gas required by the anesthesia machine. Subsequent embodiments will be described using the air source interface as an example.
  • the anesthetic delivery device 102 is used to mix the first gas provided by the gas source module with the anesthetic, control the anesthetic concentration of the mixed gas (second gas), and transfer the mixed gas (second gas) to the anesthetic. gas) is delivered to the breathing circuit 103.
  • Anesthetic delivery device 102 includes a vaporizer.
  • the breathing circuit 103 is an air path connecting the anesthetic delivery device 102 and the patient, and can recycle the patient's exhaled gas to save anesthetics and reduce environmental pollution. It can include various connecting tubes and accessories. The accessories can be endotracheal tubes, endotracheal tubes with a balloon at the end, etc.
  • a gas purification device may be provided in the breathing circuit 103, and the gas purification device is used to remove at least part of the carbon dioxide exhaled by the patient into the breathing circuit.
  • CO2 absorbent soda
  • the CO2 absorbent reacts with CO2 to achieve the purpose of removing CO2. At the same time, the reaction generates water and heat, which is beneficial to maintaining the temperature and humidity of the patient's inhaled gas.
  • the first ventilation control device (ie, anesthesia ventilation control device) 104 is used to control the breathing circuit 103 to periodically deliver the mixed gas (second gas) to the patient, thereby providing periodic anesthesia respiratory support to the patient.
  • the first ventilation control device 104 can control anesthesia ventilation automatically or manually (such as a balloon).
  • the first ventilation control device 104 may include a plurality of valves and a card for actuating the plurality of valves.
  • the board controls multiple valves to periodically deliver the second gas to the patient, thereby providing periodic anesthesia respiratory support to the patient.
  • the gas source module provides the first gas, and the gas components are mixed through the flow monitoring device, and then the anesthetic is added and the concentration is adjusted through the evaporator to form the second gas; the second gas enters the breathing circuit 103,
  • a ventilation control device 104 performs ventilation control and delivers the second gas to the patient.
  • the exhaust gas exhaled by the patient is purified by the gas purification device and then discharged or recycled; during the above process, the anesthesia machine will also monitor the machine status and patient parameters to ensure that the patient Safety and abnormal alarm.
  • the anesthesia machine 100 further includes a main body of the anesthesia machine and a ventilation device 200, at least part of the ventilation device is disposed inside the main body of the anesthesia machine.
  • the ventilation device 200 switches the flow rate at a preset frequency to provide periodic respiratory support to the patient.
  • the present invention integrates the ventilation device 200 that can provide periodic respiratory support on the anesthesia machine, so that the anesthesia machine can provide periodic respiratory support and/or provide periodic anesthesia respiratory support.
  • the patient's breathing can be supported through the ventilation device 200 of the anesthesia machine, which improves the application scope of the anesthesia machine and eliminates the need to use additional equipment. Eliminates the problem of managing multiple devices.
  • the periodic respiratory support provided by the ventilation device 200 may be high-frequency ventilation (for example, the ventilation device includes a gas delivery branch, the gas delivery branch receives gas provided by an external air source, and provides respiratory support to the patient at the first ventilation frequency) , it can also be low-frequency ventilation, etc.
  • the ventilation mode of the ventilation device 200 may be jet ventilation or non-jet ventilation; when providing jet ventilation, the ventilation device 200 may further provide high-frequency jet ventilation. Detailed description is given below through some examples.
  • the ventilation device 200 can be directly connected to the air source module or indirectly connected. In short, it only needs to be connected.
  • the ventilation device 200 is used to provide peripheral gas to the patient using the first gas (such as oxygen and/or air) provided by the gas source module. periodic respiratory support. It can be seen that when inhalation anesthesia is not required, the anesthesia machine can also be used to ventilate the patient, which improves the application scope of the anesthesia machine and does not require the use of additional equipment.
  • the human-computer interaction device of the anesthesia machine 100 can be used to receive the respiratory support method provided by the anesthesia machine to the patient.
  • trigger buttons for different breathing support modes can be provided on the display interface of the human-computer interaction device.
  • the anesthesia machine can decide whether to use the ventilation device 200 to provide periodic respiratory support to the patient based on the respiratory support mode received by the human-computer interaction device, or to use the first ventilation control device to control the breathing circuit to perform periodic anesthesia respiratory support to the patient. , or both provide respiratory support to different patients at the same time.
  • peripheral respiratory support and “periodic anesthesia respiratory support” mentioned in this application represent two different respiratory support methods.
  • the specific definitions have been explained in the previous embodiments and will not be repeated here. .
  • the ventilation device 200 can be connected to various accessories, such as spray accessories, nasal plugs, nasal masks, masks, etc.
  • the doctor can connect appropriate accessories and perform corresponding ventilation methods according to the patient's actual condition and ventilation needs, which is very convenient.
  • the ventilation device 200 can be implemented in a variety of ways, as shown in Figures 6 to 12.
  • the specific ventilation method can be high-frequency ventilation and/or jet ventilation, where the jet ventilation can be high-frequency ventilation. Jet ventilation can also be low-frequency jet ventilation.
  • high frequency/jet ventilation refers to either high frequency ventilation or jet ventilation. Below are some examples to illustrate.
  • the ventilation method provided by the ventilation device 200 is high-frequency ventilation.
  • ventilation device 200 includes a high frequency ventilation device.
  • the high-frequency ventilation device is used to ventilate the patient at a first ventilation frequency (for example, greater than or equal to 3 Hz), thereby providing periodic respiratory support to the patient.
  • the high-frequency ventilation device may include a gas delivery branch 200a, a second control valve 202, and an output port 209.
  • the high-frequency ventilation device receives the first gas through the gas delivery branch.
  • the second control valve 202 is disposed in the gas delivery branch 200a and is controlled to switch the flow rate at a switching frequency of, for example, at least 3 Hz, so that the first gas output from the output port 209 forms a high-frequency gas flow.
  • the expression "high-frequency air flow" used in this article refers to gas whose output frequency is greater than a certain critical value, for example, gas whose output frequency is greater than or equal to 3 Hz.
  • the ventilation frequency (flow switching frequency or valve opening switching frequency) of the second control valve 202 can be set in advance.
  • the second control valve 202 is used for high-frequency ventilation control (such as high frequency in two different modes, one large and one small).
  • the valve flow rate can be switched between, and its frequency can be above 3Hz, for example, between 3-20Hz), so that the first gas forms a high-frequency pulse airflow, and the high-frequency pulse airflow can provide high-frequency jet ventilation to the patient after passing through the subsequent jet accessory. , if the jet attachment is not connected later, the high-frequency pulse airflow can provide high-frequency ventilation to the patient.
  • the second control valve 202 may be an electromagnetic valve, an electromagnetic servo valve, an electromagnetic switch valve, an electromagnetic proportional valve, or the like.
  • the high-frequency ventilation device provides periodic respiratory support at a first ventilation frequency
  • the first ventilation control The device 104 controls the breathing circuit 103 to provide periodic anesthetic respiratory support at a third ventilation frequency.
  • the first ventilation frequency is greater than the third ventilation frequency.
  • the first ventilation frequency is greater than or equal to 3 Hz
  • the third ventilation frequency is less than 3 Hz.
  • the first gas may include oxygen.
  • the gas source module includes an oxygen unit for providing oxygen.
  • the oxygen unit is an oxygen interface or an oxygen generator.
  • the oxygen interface is used to connect to external oxygen sources.
  • the oxygen interface connects to oxygen delivery pipelines, oxygen bottles, etc. in the hospital.
  • the gas delivery branch includes an oxygen branch, that is, the ventilation device 200 or the high-frequency ventilation device includes: an oxygen branch 200a, a second control valve 202, and an output port 209.
  • the oxygen branch 200a is connected to the oxygen unit, for example, the two are directly connected.
  • the oxygen unit communicates with the output port 209 through the oxygen branch 200a.
  • the second control valve 202 is disposed in the oxygen branch.
  • the second control valve 202 switches the flow rate at a set frequency (for example, at least 3 Hz). It can be used to control the oxygen flow rate of the oxygen branch, or to control the output port.
  • the oxygen output by 209 forms a high-frequency air flow, thereby providing periodic high-frequency ventilation to the patient.
  • the oxygen branch 200a may also be provided with a first switch valve T1 for controlling the opening and closing of the oxygen branch.
  • the first gas may also include air.
  • the air source module includes an air unit for providing air.
  • the air unit is an air interface.
  • the air interface is used to connect to external air sources, such as air delivery ducts in hospitals.
  • the air unit is a turbine that can obtain air from the external atmospheric environment.
  • the gas delivery branch includes the air branch 200b, that is, the ventilation device 200 or the high-frequency ventilation device includes: the air branch 200b, the second control valve 202 and the output port 209.
  • the air branch 200b is connected to the air unit, for example, the two are directly connected.
  • the air unit communicates with the output port 209 through the air branch 200b.
  • the second control valve 202 is disposed in the air branch.
  • the second control valve 202 switches the flow rate at a set frequency (for example, at least 3 Hz). It can be used to control the air flow of the air branch 200b or to control the output.
  • the air output from the port 209 forms a high-frequency air flow, thereby providing periodic high-frequency ventilation to the patient.
  • the air branch 200b may also be provided with a second switching valve T2 for controlling the on/off of the air branch 200b.
  • the second control valve 202 switches the flow rate at a frequency that can realize high-frequency ventilation.
  • the oxygen branch and the oxygen branch are controlled by the opening.
  • the flow rate of the air branch controls the ventilation frequency of the oxygen branch and the air flow in the air branch by switching the frequency.
  • the first gas may also include oxygen and air.
  • the gas source module includes an oxygen unit and an air unit for supplying oxygen.
  • the gas delivery branch includes an oxygen branch and an air branch, that is, the ventilation device 200 or the high-frequency ventilation device 2001 includes: an oxygen branch 200a, an air branch 200b, a second control valve 202 and an output port 209.
  • the oxygen branch 200a is connected to the oxygen unit, for example, the two are directly connected.
  • the air branch 200b is connected to the air unit, for example, the two are directly connected.
  • the oxygen branch 200a and the air branch 200b merge and are connected to the output port 209 through the second control valve 202.
  • the oxygen branch 200a is provided with a first control valve 202a.
  • the first control valve 202a is used to control the oxygen flow of the oxygen branch.
  • the oxygen branch may also be provided with a valve for controlling the flow of the oxygen branch 200a.
  • the first switching valve T1 is broken; the first switching valve T1 plays a safety protection role.
  • the air branch 200b is provided with a third control valve 202b.
  • the third control valve 202b is used to control the air flow of the air branch 200b.
  • the air branch 200b may also be provided with a second switch valve for controlling the on/off of the air branch. ; The second switch valve plays a safety protection role.
  • the first control valve 202a may be a proportional valve or a flow valve
  • the third control valve 202b may be a proportional valve, a flow valve, or the like.
  • the first control valve 202a and the third control valve 202b can jointly control the total flow rate and oxygen concentration of the oxygen-air mixed gas.
  • the second control valve 202 switches the flow rate at a set frequency (for example, at least 3 Hz), which can be used to form a high-frequency air flow from the combined gas mixture of air and oxygen.
  • the high-frequency air flow is output through the output port 209, and then the The patient was placed on high-frequency ventilation.
  • the second control valve 202 may not be provided, but the first control valve 202a and the third control valve 202b may jointly implement high-frequency ventilation control.
  • the first control valve 202a is used not only to control the oxygen flow rate of the oxygen branch, but also to make the oxygen in the oxygen branch form a high-frequency air flow, thereby realizing high-frequency ventilation; the third control valve 202b is used both to control the air branch
  • the air flow rate of 200b is also used to form a high-frequency airflow in the air branch 200b, thereby achieving high-frequency ventilation.
  • the first control valve 202a and the third control valve 202b switch the flow rate at a frequency that can achieve high-frequency ventilation.
  • the oxygen branch is controlled by the opening.
  • the ventilation frequency of the air flow in the branch is controlled by switching frequency.
  • the two valves switch between two different valve flows (such as high-frequency opening and partial flow) at a high frequency (such as greater than or equal to 3 Hz), one large and one small. Turn off), allowing the mixed gas of oxygen and air to form a high-frequency airflow, thereby providing high-frequency ventilation to the patient.
  • a high frequency such as greater than or equal to 3 Hz
  • both the first switching valve T1 and the second switching valve T2 play a safety protection role. If the ventilation device 200 has gas output when the ventilation device 200 is not in use, it will affect the air supply of the anesthesia delivery system of the original anesthesia machine and the ventilation of the anesthesia ventilator, and will also cause damage to the oxygen or air source. Waste; therefore, the first switch valve T1 and the second switch valve T2 are provided to prevent gas output when the first control valve 202a, the third control valve 202b or the second control valve 202 cannot be closed when the ventilation device is not used. .
  • the high-frequency airflow formed at its output port 209 ventilates the patient at a ventilation frequency of at least 3 Hz.
  • the high-frequency airflow formed at its output port 530 ventilates the patient.
  • the ventilation frequency of ventilation is one of 50-1500bpm.
  • High-frequency ventilation includes high-frequency positive pressure ventilation, high-frequency oscillation ventilation and high-frequency jet ventilation.
  • the ventilation frequency for the patient can be at least 3 Hz; when the high-frequency ventilation device is used for high-frequency jet ventilation, the ventilation frequency for the patient can be at least 3 Hz.
  • Frequency is 50-1500bpm.
  • the high-frequency ventilation provided by the ventilation device 200 can be pure high-frequency ventilation, or it can be formed into high-frequency jet ventilation after adding the injection accessory 70. Specifically, if the output port 209 is not connected to the injection accessory, but to other ventilation accessories (such as trachea, intubation, mask, nasal mask, etc.), high-frequency ventilation devices simply provide high-frequency ventilation for patients. If the output port 209 is connected to the jet attachment 207, the high-frequency ventilation device can further provide high-frequency jet ventilation for the patient. Taking the latter as an example, output port 209 can be used to connect a spray accessory, output port 209 The output high-frequency airflow is transmitted through the injection attachment to form a high-frequency jet airflow.
  • the spray accessory can be provided by a third-party manufacturer, and the user can connect it to the output port 209.
  • the spray accessory can also be part of the anesthesia machine accessories, that is, the anesthesia machine includes a spray accessory connected to the high-frequency ventilation device.
  • the injection accessory receives the first gas output by the high-frequency ventilation device, and outputs the first gas in the form of high-frequency injection air flow. That is, the output port 209 outputs high-frequency airflow (high-frequency pulse airflow), which becomes a high-frequency jet airflow after passing through the injection attachment.
  • the ventilation frequency of the high-frequency jet airflow for ventilating the patient can be 3 Hz or more, or Between 50-1500bpm, thus providing patients with high-frequency jet ventilation.
  • the ventilation frequency can be above 3Hz; for high-frequency jet ventilation, the ventilation frequency can be one of 50-1500bpm.
  • the injection accessory includes an injection channel, the output aperture of the injection channel is less than 4mm.
  • the spray accessory may include a nozzle, a spray needle or a stent (such as a tracheoscope, bronchoscope, scope sheath, etc.).
  • the stent is used to support human tissue or connect the tracheal tube to facilitate the doctor's surgery.
  • the wall of the stent is provided with a hole for the spray. (For example, its hole diameter is less than 4mm).
  • the ventilation method provided by the ventilation device 200 is jet ventilation.
  • the ventilation device 200 is also used to connect the injection accessory, receive the gas output from the air source interface and adjust it, so that the gas passes through the injection accessory and supports the patient's breathing in the form of a jet air flow.
  • the gas circuit diagram is still as shown in Figure 7-12. That is, the ventilation device 200 includes a gas delivery branch, a second control valve 202 and an output port 209.
  • the second control valve 202 is disposed in the gas delivery branch and is used to control the ventilation device 200 to provide periodic respiratory support.
  • Output port 209 is used to connect spray accessories.
  • the ventilation device 200 receives the first gas through the gas delivery branch, and the first gas is output through the injection accessory 70 connected to the output port 209 and formed into a jet gas flow.
  • the anesthesia machine may include a spray accessory 70 connected to the ventilation device 200.
  • the spray accessory 70 receives the first gas output by the ventilation device 200 and causes the first gas to form a spray gas flow.
  • the anesthesia machine may not include a jet accessory, and the user can install the jet accessory to the output port 530 of the ventilation device by themselves during subsequent use.
  • jet ventilation used in this article refers to the following ventilation method: During the air supply phase of a respiratory cycle, high-pressure gas is ejected into the respiratory tract through a fine-aperture injection attachment. The high-speed gas uses the entrainment/Venturi effect to affect the tidal volume. To supplement, the air supply is stopped during the expiratory phase of a breathing cycle.
  • the term “jet airflow” corresponding to jet ventilation refers to the high-speed airflow output by the jet attachment.
  • the ventilation device 200 may have multiple air path diagrams, as shown in Figures 7 to 12, which are introduced one by one below.
  • the gas source module includes an oxygen unit, and the first gas includes oxygen provided by the oxygen unit.
  • the gas delivery branch includes an oxygen branch 200a, that is, the ventilation device includes: an oxygen branch 200a, a second control valve 202 and an output port 209.
  • the oxygen unit is connected to the output port 209 through the oxygen branch, and the output port 209 is used to connect the injection accessories.
  • the second control valve 202 is disposed in the oxygen branch 200a, and is used to control the oxygen flow of the oxygen branch 200a and to cause the oxygen output from the output port 209 to form a periodic jet air flow after passing through the jet accessory, thereby providing the patient with Periodic jet ventilation.
  • the oxygen branch 200a may also be provided with a first switch valve T1 for controlling the opening and closing of the oxygen branch 200a.
  • the air source module includes an air unit, and the first gas includes air provided by the air unit.
  • the gas delivery branch includes an air branch 200b, that is, the ventilation device 200 includes: an air branch 200b, a second control valve 202 and an output port 209.
  • the air unit communicates with the output port 209 through the air branch 200b.
  • the output port is used to connect spray accessories.
  • the second control valve 202 is disposed in the air branch 200b for controlling the air flow of the air branch 200b and causing the air output from the output port 209 to form a periodic jet air flow after passing through the jet accessory, thereby providing periodic air jets to the patient. Jet ventilation.
  • the air branch 200b may also be provided with a second switching valve T2 for controlling the opening and closing of the air branch 200b.
  • the second control valve 202 switches the flow rate at a certain frequency.
  • the flow of the oxygen branch and the air branch is controlled by the opening.
  • the frequency controls the ventilation frequency of the air flow in the oxygen branch and the air branch, so that the oxygen branch and the air branch can respectively output periodic air flows.
  • the gas source module includes an oxygen unit for providing oxygen and an air unit for providing air.
  • the first gas includes oxygen provided by the oxygen unit and air provided by the air unit.
  • the gas delivery branch includes an oxygen branch 200a and an air branch 200b, that is, the ventilation device 200 includes: an oxygen branch 200a, an air branch 200b, a second control valve 202 and an output port 209.
  • the oxygen branch 200a is connected to the oxygen unit
  • the air branch 200b is connected to the air unit.
  • the oxygen branch 200a and the air branch 200b merge and are connected to the output port 209 through the second control valve 202.
  • Output port 209 is used to connect spray accessories.
  • the oxygen branch 200a is provided with a first control valve 202a
  • the air branch 200b is provided with a third control valve 202b.
  • the first control valve 200a is used to control the oxygen flow rate of the oxygen branch circuit 200a
  • the third control valve 202b is used to control the air flow rate of the air branch circuit 200b.
  • the second control valve 202 is used to form a periodic jet air flow when the combined gas mixture of air and oxygen is output from the jet accessory connected to the output port 209, thereby providing periodic jet ventilation for the patient.
  • the second control valve 202 may not be provided, but the first control valve 202a and the third control valve 202b may jointly implement injection control. That is, the first control valve 202a is used not only to control the oxygen flow of the oxygen branch 200a, but also to make the oxygen in the oxygen branch form a periodically output oxygen gas flow, thereby realizing jet ventilation; the third control valve 202b is used both to control The air flow in the air branch 200b is also used to form a periodically output air flow in the air in the air branch, thereby achieving jet ventilation. That is, when the mixed gas merged by the periodic air flow of the oxygen branch 200a and the periodic air flow of the air branch 200b is output from the injection accessory connected through the output port 209, a periodic injection air flow is formed.
  • the ventilation device 200 provides periodic breathing to the patient.
  • Support is to perform jet ventilation on the patient.
  • Jet ventilation is one of the methods of positive pressure ventilation. Jet ventilation is a ventilation method that injects high-pressure gas into the respiratory tract at high speed under an open airway. Jet ventilation has a wide range of ventilation frequencies. In order to meet the needs of users with different physiological conditions, jet ventilation can have a variety of ventilation frequencies, such as high-frequency jet ventilation and low-frequency jet ventilation. High frequency and low frequency are relative concepts, which are equivalent to multiple ventilation frequency gears. The frequency of high-frequency jet ventilation is higher than the frequency of low-frequency jet ventilation.
  • the frequency of high-frequency jet ventilation can be between 50 and 1500 bpm. In other embodiments, the frequency of high-frequency jet ventilation can be above 3 Hz, such as between 3 and 20 Hz; the frequency of low-frequency ventilation can be, for example, Can be between 10-50bpm.
  • jet ventilation is positive pressure ventilation under an open airway, while periodic anesthesia respiratory support is applied to Ventilation scenarios with airway closure or intubation.
  • some anesthesia machines in addition to providing anesthesia respiratory support to patients, can also provide high-flow oxygen therapy, that is, deliver high-flow oxygen to the patient, thereby achieving pre-oxygenation of the patient and extending the patient's asphyxiation time window. , leaving time for doctors to perform intubation and other operations.
  • Pre-oxygenation does not involve the control of the respiratory cycle, but the new ventilation device 200 in this embodiment needs to provide periodic respiratory support to the patient, which involves the control of the respiratory cycle, that is, the control of the ventilation frequency.
  • the second ventilation control device 202 may be at least one of the first control valve 202a and the second control valve 202b, and may also include one or more valves and a board for driving one or more valves.
  • one or more valves are provided in the gas delivery branch (such as the above-mentioned oxygen branch, air branch, etc.).
  • the board controls one or more valves (such as various control valves as shown in Figure 7-12) to periodically deliver the first gas to the patient, thereby providing periodic respiratory support to the patient.
  • the board controls the opening of one or more valves at a certain frequency to form a periodic air flow, so that the ventilation device 200 can provide periodic respiratory support to the patient.
  • the ventilation device 200 when the second ventilation control device controls the opening switching control frequency of one or more valves above 3 Hz, the ventilation device 200 can provide high-frequency ventilation for the patient; the second ventilation control device 202 controls one or more valves.
  • the opening switching control frequency is 10-1500 bpm, and when the ventilator 200 is connected to a jet accessory, the ventilator 200 can provide jet ventilation for the patient.
  • the oxygen branch 200a may also be provided with a first flow sensor 204a for monitoring the flow rate of the oxygen branch 200a.
  • a second flow sensor 204b for monitoring the flow rate of the air branch 200b may also be provided in the air branch 200b.
  • a safety valve 205 for pressure relief is provided between the confluence node of the oxygen branch 200a and the air branch 200b (black dots in Figures 11 and 12) and the output port 209, and at least one pressure sensor for monitoring the pressure is provided. sensor.
  • the safety valve 205 can be specifically used to connect the output port 209 to the exhaust end of the safety valve 205 when the pressure monitored by the pressure sensor exceeds a preset threshold, so that the gas between the output port 209 and the safety valve 205 is discharged through the exhaust end. , to prevent patients from barotrauma.
  • the safety valve 205 can also be used when the pressure monitored by the pressure sensor exceeds a preset threshold. Separate the airway between the output port 209 and the sink node.
  • the safety valve 205 is a three-way valve, the first end of the three-way valve is connected to the output port 209, the second end of the three-way valve is connected to the converging node, and the third end of the three-way valve is the exhaust end.
  • the first end and the second end of the three-way valve are connected (connected), the first end is disconnected from the exhaust end, and the second end is disconnected from the exhaust end.
  • the pressure sensor outputs the monitored pressure to the second ventilation control device.
  • the second ventilation control device determines whether the pressure exceeds the preset threshold, and when it exceeds the preset threshold, outputs a corresponding control signal to the three-way valve.
  • the three-way valve When triggered by a control signal, the three-way valve disconnects the first end from the second end and connects (connects) the first end with the exhaust end, thereby releasing gas with excessive pressure and improving safety.
  • the preset threshold can be set based on clinical experience or doctor's needs.
  • the human-computer interaction device of the anesthesia machine also includes a display.
  • the display When the respiratory support mode received by the human-computer interaction device is periodic respiratory support, the display is used to output a prompt message for turning off the anesthetic delivery device 102 or output a prompt message for switching the patient's anesthesia mode to prevent the anesthetic from the anesthetic delivery device 102 from not passing through the respiratory tract.
  • the circuit is provided to the patient and released into the environment.
  • the display can also be used to display the pressure waveform W (as shown in Figure 14), which is convenient for the user to view and analyze. The pressure in the pressure waveform W is monitored by a pressure sensor.
  • the anesthesia machine can also obtain the working status of the electronic evaporation tank.
  • the respiratory support method received by the human-computer interaction device is periodic respiratory support
  • the anesthesia machine is also used to determine whether the current working status of the electronic evaporation tank is to stop working, that is, to determine whether the electronic evaporation tank is closed, and to determine whether the electronic evaporation tank is closed.
  • the anesthesia machine can switch to periodic respiratory support mode. Only after the electronic evaporation tank is closed, the ventilation device 200 performs periodic breathing support, which improves the safety of the anesthesia machine.
  • Figure 13 is a schematic diagram of the main monitoring interface on the display of the anesthesia machine.
  • the main monitoring interface includes a ventilation mode switching area P1.
  • High-frequency jet ventilation as one of the ventilation modes, is presented in the ventilation mode switching area P1 in the form of tabs.
  • the ventilation device 200 can be controlled to start and provide periodic high-frequency jet ventilation to the patient.
  • the pressure monitored during high-frequency jet ventilation will be displayed in the pressure waveform area P2 of the main monitoring interface.
  • Ventilation mode icons in the ventilation mode switching area P1 can be selected, such as the “VCV” icon.
  • the first ventilation control device 104 can control the breathing circuit to provide periodic breathing support to the patient. Anesthetic respiratory support.
  • the human-computer interaction device when the human-computer interaction device receives any respiratory support mode, instructions based on the same respiratory support mode may be sent to the first ventilation control device and the second ventilation control device respectively.
  • the two ventilation control devices respectively start or stop the corresponding respiratory support method according to the received instructions.
  • the respiratory support mode received by the human-computer interaction device is periodic respiratory support
  • the first ventilation control device 104 controls the breathing circuit to stop.
  • the second ventilation control device synchronously controls the ventilation device 200 (for example, the gas delivery branch) to start periodically providing the first gas to the patient, and Perform high frequency/jet ventilation.
  • the second ventilation control device 202 and the first ventilation control device 104 are two independent ventilation control devices; of course, in other embodiments, the second ventilation control device 202 and the first ventilation control device 104 are also It may be the same ventilation control device, that is, the control functions of the ventilation device 200 may be further integrated with the first ventilation control device. That is, the first ventilation control device also has the function of the above-mentioned second ventilation control device, and is used to control the gas delivery branch to provide periodic respiratory support to the patient.
  • the first ventilation control device determines whether to control the breathing circuit to provide periodic anesthesia breathing support, and/or control The gas delivery branch provides periodic respiratory support to the patient.
  • the pressure sensor may be disposed between the second control valve 202 and the output port 209.
  • a safety valve 205 is also provided between the second control valve 202 and the output port 209 .
  • first pressure monitoring device 203 and the second pressure monitoring device 206 are provided as an example for description.
  • the pressure monitored by the first pressure monitoring device 203 is used to trigger the safety valve 205, and the pressure monitored by the second pressure monitoring device 206 is used to display the waveform.
  • the first pressure monitoring device 203 is close to the safety valve 205 .
  • the first pressure monitoring device 203 monitors the pressure of the high-frequency gas.
  • the safety valve 205 is switched to separate the patient's airway from the airway of the ventilation device 200.
  • the patient The gas at the end can be discharged through the safety valve 205 to prevent barotrauma from occurring at the patient end.
  • the second pressure monitoring device 206 is located near the patient end, ie, near the output port 209 . There is a pressure sampling port at the patient end, which is connected to the second pressure monitoring device 206 of the ventilation device 200 through a pressure sampling conduit. Therefore, the display displays the pressure oscillation waveform W collected by the second pressure monitoring device 206 on the interface.
  • the action of the safety valve 205 can also be triggered based on the second pressure monitoring device 206 near the patient, and the data of the pressure waveform W displayed on the display can also be triggered by the first pressure monitoring device 203 near the safety valve 205 collection.
  • the ventilation device 200 can perform high-frequency/jet ventilation by controlling the switching frequency of the second ventilation control device (for example, the second control valve 202).
  • the specific process of high-frequency/jet ventilation has been described in detail in the above content.
  • the ventilation device 200 adjusts the frequency of high-frequency/jet ventilation (that is, the air supply frequency) of the second control valve 202 to achieve ventilation with different ventilation frequencies. For example, when the ventilation device 200 implements jet ventilation and the ventilation frequency of the jet ventilation device is lowered, the jet ventilation device is a low-frequency ventilation device, and low-frequency ventilation can be achieved with corresponding accessories (such as nasal plugs, nasal masks, masks, etc.) .
  • the anesthesia machine also includes a flow monitoring device 101.
  • the flow monitoring device 101 is used to control (regulate) the flow of the first gas. It can be mechanical or fully electronic.
  • Flow monitoring device Set 101 can also be used to detect the flow rate of the first gas.
  • the air source interface 300' is connected to the anesthetic delivery device 102 through the flow monitoring device 101, in which the ventilation device 200 is connected to the air source interface 300'; in Figure 6 specifically, the air source interface is connected through the flow monitoring device 101.
  • Device 101 is connected to the evaporator.
  • the anesthesia machine includes a three-way valve.
  • the three-way valve includes a first port connected to the flow monitoring device 101 , a second port connected to the anesthetic delivery device 102 , and a third port connected to the ventilation device 200 . That is, the air source interface 300' is connected to the input end of the flow monitoring device 101.
  • the output end of the flow monitoring device 101 can be connected to the anesthetic delivery device 102 under the control of the three-way valve, or can be connected to the ventilation device 200 under the control of the three-way valve. That is, the three-way valve is used to enable the flow monitoring device.
  • 101 Select one of the anesthetic delivery device 102 and the ventilation device 200 for communication.
  • the gas source interface 300' may also include a laughing gas unit for providing laughing gas.
  • the laughing gas unit may be a laughing gas interface.
  • the laughing gas interface is used to connect to external laughing gas sources, such as laughing gas delivery pipes and laughing gas bottles in hospitals. wait.
  • the flow monitoring device 101 may have three input interfaces, which are respectively connected to the oxygen interface, the air interface and the laughing gas interface.
  • the ventilation device 200 may include a gas delivery branch and an output port. However, the second ventilation control device 202 does not need to be provided in the gas delivery branch. Instead, the fourth control valve is shared with the flow monitoring device 101 and the fifth control valve.
  • Both the fourth control valve and the fifth control valve are used for periodic ventilation control, that is, the functions of the fourth control valve and the fifth control valve can be the same as the above-mentioned second ventilation control device 202, such as the fourth control valve and the fifth control valve.
  • Both the control valve and the fifth control valve can be controlled to switch the flow rate at a preset frequency, so that the pulse frequency of the air flow at the first port of the three-way valve is greater than or equal to 3Hz or between 50-1500bpm.
  • the anesthesia machine also includes a three-way valve, the first port of the three-way valve is connected to the flow monitoring device 101, the second port of the three-way valve is connected to the anesthetic delivery device 102, and the third port of the three-way valve is connected to the ventilation device 200. connect.
  • the respiratory support mode received by the anesthesia machine is periodic respiratory support
  • the first port and the third port of the three-way valve are connected
  • the fourth control valve and the fifth control valve are connected with the ventilation device 200
  • the fourth control valve and the third port are connected.
  • the five control valves perform flow switching according to a preset frequency so that the ventilation device 200 ventilates the patient at the first ventilation frequency.
  • the first ventilation frequency may, for example, be greater than or equal to 2 Hz, or may be greater than or equal to 3 Hz, or be between 50-1500 bpm.
  • the mixed gas of oxygen and air (it can also be a mixed gas of oxygen, air and laughing gas) forms a periodic air flow, This highly periodic air flow is transmitted to the output port along the gas delivery branch. If the output port of the ventilation device 200 is connected to the jet accessory, the periodic air flow passes through the jet accessory and then provides jet ventilation to the patient.
  • the first port and the second port are connected, the fourth control valve and the fifth control valve are connected with the anesthetic delivery device 102, and the fourth control valve and the fifth control valve are connected to the anesthetic delivery device 102.
  • the valve provides the first gas to the anesthetic delivery device at the second ventilation frequency, so that the first gas is mixed with the anesthetic at the second ventilation frequency to obtain the second gas, so that the breathing circuit ventilates the patient.
  • the first ventilation frequency is greater than the second ventilation frequency.
  • the second ventilation frequency may be 0, that is, the fourth control valve and the fifth control valve only need to be opened.
  • gas can be introduced from the flow rear end of the flow monitoring device 101 to the ventilation module, which greatly simplifies the structure of the ventilation module.
  • the anesthesia machine may also include an auxiliary gas supply module.
  • the auxiliary gas supply module is used to receive the first gas output from the gas source interface 300', and use the first gas to provide respiratory support to the patient at a flow rate of 20-80 liters/minute.
  • the respiratory support provided by the auxiliary air supply module is non-periodic respiratory support.
  • Acyclic respiratory support refers to the continuous delivery of gas to the patient. This method is actually high-flow oxygen therapy. In this way, the anesthesia machine can provide high-flow oxygen therapy to patients when anesthesia is not needed, and has a wide range of applications.
  • the anesthesia machine may include a main frame having a shell, and at least part of the ventilation device may be disposed in the accommodation space formed by the shell, forming an integrated whole with the anesthesia machine. That is, at least part of the ventilation device is integrated inside the anesthesia machine and integrated with the anesthesia machine.
  • the second ventilation control device included in the ventilation device is built into the main frame and is communicatively connected with the human-computer interaction device of the anesthesia machine.
  • the anesthesia machine of the present invention due to the integrated ventilation device, can provide the following ventilation control: when the received respiratory support mode is periodic anesthesia respiratory support, the first gas is controlled to be mixed with the anesthetic to obtain a second gas, and the second gas is controlled to Enter the breathing circuit of the anesthesia machine, and control the breathing circuit to periodically output the second gas to achieve periodic anesthesia breathing support; when the received breathing support mode is periodic breathing support, control the first gas to enter the anesthesia machine A ventilation device, and controls the ventilation device to periodically output the first gas to achieve periodic respiratory support; wherein the periodic respiratory support includes not providing gas delivery for part of a respiratory cycle.
  • the ventilation device can be controlled to output periodic first gas at a certain frequency.
  • the periodic first gas can complete jet ventilation after passing through the jet attachment.
  • the present invention creatively integrates the Jet Ventilation (JV) function into a general anesthesia machine.
  • Direct use of the anesthesia machine can support applications such as pharyngeal, tracheal, bronchial or lung surgeries where tracheal intubation ventilation is not possible.
  • the doctor puts the spray needle or nozzle into a suitable position in the pharynx or trachea, and uses the anesthesia machine to perform spray ventilation and respiratory support.
  • the diameter of the jet needle or nozzle is very small, leaving enough space for the doctor to observe and perform laryngoscopy surgery; on the other hand, the characteristics of jet ventilation, especially the characteristics of high-frequency (above 3Hz, or 50-1500bpm) jet ventilation , the patient's lung pressure changes very little between inhalation and exhalation, and does not cause large fluctuations in lung breathing, which undoubtedly provides convenience for one-lung ventilation or lung surgery.
  • jet ventilation uses a jet needle and a nozzle for ventilation, it does not form a sealed connection between the airway system of the anesthesia machine and the patient's respiratory system. Therefore, this type of ventilation cannot simultaneously inject anesthetics through the jet needle and nozzle. Otherwise, the anesthetic may leak out. In this case, anesthesia will need to be administered intravenously.
  • the present invention integrates ventilation devices such as jet ventilation functions into a general anesthesia machine, and integrates boards, display screens, etc. into one device, which brings convenience to the management of operating room equipment and allows more hospitals to perform pharyngeal surgery. It has great clinical value for anesthesia surgeries that cannot be performed with tracheal intubation and ventilation, such as tracheal, bronchial or lung surgeries.
  • the present application provides a ventilation control method implemented through an interactive interface.
  • the interactive interface provides a setting area for the anesthesia machine 100 and a setting area for the ventilation device 200; wherein, the Methods include:
  • the interactive interface receives the anesthesia machine 100 control information input by the user through the anesthesia machine 100 setting area, and sends the anesthesia machine 100 control instructions to the anesthesia machine 100 that has established a communication connection based on the anesthesia machine 100 control information, so that the anesthesia machine 100 can be controlled according to the anesthesia machine 100 Instructs patient 400 to perform periodic anesthetic respiratory support;
  • the interactive interface receives the ventilation device 200 control information input by the user through the ventilation device 200 setting area, and sends the ventilation device 200 control instructions to the ventilation device 200 that has established a communication connection according to the ventilation device 200 control information, so that the ventilation device 200 can be controlled according to the ventilation device 200 Instructs patient 400 to perform periodic respiratory support;
  • the anesthesia machine 100 and the ventilation device 200 connected to the interactive interface can be selectively coupled or decoupled, so that the ventilation device 200 can independently provide periodic respiratory support to the patient 400 after being decoupled from the anesthesia machine 100; or when After the ventilation device 200 is coupled to the anesthesia machine 100, the ventilation device 200 can provide periodic respiratory support to the patient 400 independently of the anesthesia machine 100, or the anesthesia system receives operations on the ventilation device 200 through the anesthesia machine 100 to control the ventilation device 200.
  • the patient 400 provides periodic respiratory support to meet the needs of different physiological conditions of the user.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a detachable connection.
  • the connection can be mechanical or electrical. It can be a direct connection or an indirect connection through an intermediary. It can be an internal connection between two elements or an interaction between two elements.
  • the term “above” or “below” a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

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Abstract

Sont divulgués ici un système d'anesthésie, une machine d'anesthésie et un procédé de commande de ventilation mis en œuvre au moyen d'une interface interactive. Le système d'anesthésie comprend une machine d'anesthésie (100) et un dispositif de ventilation (200). Le dispositif de ventilation (200) est conçu pour être sélectivement accouplé à la machine d'anesthésie (100), ou désaccouplé de celle-ci. Après le désaccouplement du dispositif de ventilation (200) de la machine d'anesthésie (100), le dispositif de ventilation (200) fournit indépendamment une assistance respiratoire périodique à un patient. Après l'accouplement du dispositif de ventilation (200) à la machine d'anesthésie (100), le dispositif de ventilation (200) fournit une assistance respiratoire périodique à un patient indépendante de la machine d'anesthésie (100). En variante, le système d'anesthésie reçoit des opérations sur le dispositif de ventilation (200) au moyen de la machine d'anesthésie (100) pour commander le dispositif de ventilation (200) pour fournir une assistance respiratoire périodique à un patient.
PCT/CN2023/079715 2022-09-06 2023-03-05 Système d'anesthésie, machine d'anesthésie et procédé de commande de ventilation Ceased WO2024051118A1 (fr)

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