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WO2016086354A1 - Système respiratoire de machine d'anesthésie, et machine d'anesthésie - Google Patents

Système respiratoire de machine d'anesthésie, et machine d'anesthésie Download PDF

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Publication number
WO2016086354A1
WO2016086354A1 PCT/CN2014/092785 CN2014092785W WO2016086354A1 WO 2016086354 A1 WO2016086354 A1 WO 2016086354A1 CN 2014092785 W CN2014092785 W CN 2014092785W WO 2016086354 A1 WO2016086354 A1 WO 2016086354A1
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WO
WIPO (PCT)
Prior art keywords
line
switching
gas
anesthesia machine
driving
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/CN2014/092785
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English (en)
Chinese (zh)
Inventor
陈培涛
罗才瑾
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
Application filed by Shenzhen Mindray Bio Medical Electronics Co Ltd filed Critical Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority to CN201480017240.0A priority Critical patent/CN105517612B/zh
Priority to PCT/CN2014/092785 priority patent/WO2016086354A1/fr
Publication of WO2016086354A1 publication Critical patent/WO2016086354A1/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
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes operated by electrical means
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices

Definitions

  • the invention belongs to the technical field of medical equipment, and in particular relates to a multifunctional anesthesia machine breathing system and an anesthesia machine.
  • the prior art anesthesia breathing system can only work in the re-inhalation system during mechanical ventilation, and the gas exhaled by the patient in the re-inhalation system can be reused, and the bellows device is usually used to isolate the driving gas from the patient's exhaled gas, and the patient exhaled.
  • the gas is repeatedly inhaled, so it is necessary to use a carbon dioxide absorber to absorb the carbon dioxide in the exhaled gas of the patient.
  • Carbon dioxide absorbent has a long service life. During long-term surgery, medical personnel are required to pay attention to whether the carbon dioxide absorbent needs to be replaced to prevent repeated inhalation of carbon dioxide.
  • the object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide an anesthesia machine breathing system and an anesthesia machine which are convenient to use.
  • anesthesia machine breathing system including a driving branch , an exhaust line, an expiratory line, and an inspiratory line; further comprising connecting the drive branch to the expiratory line and the inspiratory line, or connecting the drive branch to the inspiratory line, and exhaling Switching device for connecting a pipeline to an exhaust line to achieve switching between re- or no re-suction .
  • the driving branch further comprises driving means for controlling the suction pressure and the flow, the driving device being respectively connected to the switching device and the gas conveying device through two sets of pipelines; or The driving device is connected to the exhalation line or the inspiratory line; or the driving device is connected to the switching device.
  • the driving branch includes a gas conveying device; the suction pipe or the gas conveying device is connected with a fresh gas supply line, and the exhalation line and the exhaust line are connected to the switching a device, the gas delivery device is connected to the switching device and the inspiratory line, and the inhalation line or the exhalation line or the gas supply device is connected to the inspiratory line There are absorption devices.
  • the absorption device is connected to the suction line, the absorption device is connected in parallel with a bypass branch, and the multifunctional anesthesia breathing system has a bypass switching valve, and the bypass switching valve will absorb The device is in communication with the suction line or communicates the bypass branch with the suction line.
  • a connecting line is connected between the air conveying device and the switching device, the connecting line is connected to the switching device through a first branch pipe, and the connecting pipe is connected to the device through a second branch pipe
  • a suction line is connected to the connection line, and a manual machine-controlled switching valve is connected, and the manual machine-controlled switching valve is connected with a manual control component.
  • the manual control component includes an exhaust gas discharge pipe connected to the manual machine control switching valve, and the exhaust gas discharge pipe is connected with a manual skin capsule and an adjustable pressure limiting valve.
  • the driving branch further comprises an intake line
  • the switching device can connect the driving device with the expiratory line and the inspiratory line, or the switching device connects the intake line and the inspiratory line And connect the exhalation line to the exhaust line.
  • the switching device is a two-position four-way reversing valve or a two-position three-way reversing valve.
  • the switching device has a first inlet, a second inlet, a first outlet, and a second outlet
  • the switching device includes means for the first inlet and the first outlet, the second inlet and the second a second outlet conducting and a switching mechanism for switching to the first inlet and the second outlet, the second inlet and the first outlet
  • the driving device is connected to the first inlet through a first branch
  • the driving device is connected to the gas conveying device through a second branch
  • the second inlet is connected to the exhalation line
  • the first outlet is connected to the exhaust line
  • the second outlet is connected to the air outlet a gas device and the suction line.
  • the exhaust line is connected to an exhalation valve.
  • the gas delivery device is a folded capsule gas delivery device, a tortuous airway gas delivery device or a piston gas transmission device.
  • the folding capsule air delivery device comprises a housing and a folding capsule disposed in the housing, a space between an outer side of the folding capsule and an inner side of the housing is in communication with the driving device, a space inside the folding bladder is connected to the switching device and the suction line;
  • the tortuous airway delivery device comprises a single, two or more zigzag air passages connected in parallel; the tortuous air passage is connected to The switching device and the suction line;
  • the piston type gas transmission device includes a housing and a piston slidably disposed in the housing, and a housing of the piston type gas transmission device is coupled to the switching device and The suction line.
  • the drive means is controlled by a flow rate or pressure through a proportional valve or turbine.
  • an adsorption material for adsorbing carbon dioxide is disposed in the absorption device.
  • the present invention also provides an anesthesia machine having the anesthesia machine breathing system described above.
  • the anesthesia machine breathing system and anesthesia machine provided by the present invention are capable of rapid switching between a no-re-inhalation system mode and a re-inhalation system mode.
  • the no-inhalation system mode it can be used for intravenous anesthesia and as a ventilator.
  • the driving gas is directly inhaled by the patient.
  • the patient exhaled gas is discharged to the outside through the exhalation valve, and is not recycled in the respiratory system.
  • the medical staff need not pay attention to it. Whether the carbon dioxide absorbent needs to be replaced, the burden on the medical staff is reduced, and the use is convenient.
  • the multi-functional anesthesia machine respiratory system is not limited by the type of the gas delivery device, and may be a folding capsule, a piston or a tortuous airway type gas delivery device; and is not limited by the driving mode.
  • the driving device may be a proportional valve driven type or a turbo driven type or the like.
  • FIG. 1 is a schematic view showing the connection of an anesthesia machine breathing system in a re-inhalation system mode according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a connection of an anesthesia machine breathing system in a non-re-inhalation system mode according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a connection of an anesthesia machine breathing system in a re-inhalation system mode according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a connection of an anesthesia machine breathing system in a non-re-inhalation system mode according to an embodiment of the present invention
  • FIG. 5 is a schematic plan view showing another embodiment of a switching device in an anesthesia machine respiratory system according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram showing the connection of a three-way valve as a switching device and in a re-inhalation system mode according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a connection of a three-way valve used as a switching device and in a non-re-inhalation system mode according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a connection of a breathing apparatus of an anesthesia machine using a turbine as a driving device and in a re-inhalation system mode according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of a connection of a breathing apparatus of an anesthesia machine using a turbine as a driving device and in a non-re-inhalation system mode according to an embodiment of the present invention
  • FIG. 10 is a schematic diagram showing the connection of the breathing apparatus of the anesthesia machine using the piston type driving device in the re-inhalation system mode according to the embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing the connection of the breathing apparatus of the anesthesia machine using the piston type driving device in the non-re-inhalation system mode according to the embodiment of the present invention.
  • an anesthesia machine breathing system provided by an embodiment of the present invention includes a driving branch and an exhaust line 31, and further includes selectively introducing gas exhaled by the patient 1 into the driving branch.
  • the switching device 14 of the road or the exhaust line to achieve switching between re-doping and no re-suction.
  • An absorption device 8 for absorbing carbon dioxide in the gas stream is disposed in the driving branch, and a carbon dioxide adsorbing material such as sodium lime may be provided in the absorption device 8.
  • the switching device 14 can conduct the gas exhaled by the patient 1 to the driving branch, and the anesthesia breathing system can operate in the re-inhalation system mode, as shown in FIG. 1 or FIG.
  • the switching device 14 can conduct the gas exhaled by the patient 1 to the exhaust line 31, and the anesthesia breathing system can operate in the no-re-inhalation system mode, as shown in FIG. 2 or FIG.
  • the exhaust line 31 can directly discharge the exhaled gas, and the exhaled gas does not need to pass through the absorption device 8, and the switching device 14 is provided and the connection of the pipeline is improved, so that the anesthesia breathing system can be selected to be in the re-inhalation system, no re-inhalation.
  • the working mode of the system and the ventilator overcomes the technical problem that the medical personnel need to pay attention to whether the carbon dioxide absorbent needs to be replaced when the intravenous anesthesia is performed in the prior art, and avoid the problem that the customer inhales excessive carbon dioxide in this mode, and the exhalation airflow does not need to be
  • the carbon dioxide absorber there is no problem that the carbon dioxide absorber will generate a large amount of water vapor after absorbing the carbon dioxide, which may easily cause condensation and water accumulation in the circuit.
  • the driving branch includes an exhalation line 4, an inspiratory line 3, a fresh gas supply line 7, a gas delivery device 9, an absorption device 8 for absorbing carbon dioxide in the gas stream, and a control for inspiratory pressure and
  • the driving device 12 can be connected with a gas source gas.
  • the exhalation line 4 and the inspiratory line 3 are connected to the patient line 2, and the patient line 2 is connected to the respiratory channel or the nose and mouth of the patient 1, and the expiratory flow of the patient 1 exhales from the exhalation line 4.
  • the inspiratory flow of the patient 1 when inhaling comes from the inspiratory line 3.
  • a carbon dioxide absorber may be disposed in the absorption device 8.
  • the anesthesia machine breathing system further includes a switching device 14 for selectively introducing the exhalation line 4 into the gas delivery device 9 or the exhaust line 31.
  • the introduction in the embodiment includes the connection state.
  • the conduction may also include connection and conduction in an unconnected state.
  • the exhalation line 4 is connected to the switching device 14, and the gas delivery device 9 is connected to the switching device 14 and the inspiratory line 3, and the absorption device 8 is connected to the inspiratory line 3 or to the exhalation line 4 or to the gas line.
  • the fresh gas supply line 7 is connected to the suction line 3 or the gas delivery device 9, and the drive unit 12 is connected to the switching device 14 and the gas delivery device 9.
  • the drive device 12 is connected to the switching device 14.
  • the switching device 14 can conduct the exhalation line 4 to the gas delivery device 9, and the anesthesia breathing system can operate in the re-inhalation system mode, as shown in FIG. 1 or FIG.
  • the fresh gas supply line 7 allows fresh air (which can be mixed with anesthetic gas) to enter the gas delivery device 9, and the gas delivery device 9 causes the airflow to flow to the inspiratory line 3 and flow through the absorption by the driving device 12.
  • Device 8 filters out carbon dioxide for inhalation by patient 1.
  • the switching device 14 can conduct the exhalation line 4 to the exhaust line 31, and the anesthesia breathing system can operate in the no-re-inhalation system mode, as shown in FIG. 2 or FIG.
  • the exhaust line 31 can directly discharge the exhaled gas, and the exhaled gas does not need to pass through the absorption device 8, and the switching device 14 is provided and the connection of the pipeline is improved, so that the anesthesia breathing system can be selected to be in the re-inhalation system, no re-inhalation.
  • the working mode of the system and the ventilator overcomes the technical problem that the medical personnel need to pay attention to whether the carbon dioxide absorbent needs to be replaced when the intravenous anesthesia is performed in the prior art, and avoid the problem that the customer inhales excessive carbon dioxide in this mode, and the exhalation airflow does not need to be
  • the carbon dioxide absorber there is no problem that the carbon dioxide absorber will generate a large amount of water vapor after absorbing the carbon dioxide, which may easily cause condensation and water accumulation in the circuit.
  • the anesthesia machine breathing system provided by the embodiment of the invention can perform rapid switching between the non-re-inhalation system and the re-inhalation system, and the product is flexible and versatile, and can be used for intravenous anesthesia and as a ventilator in a non-re-inhalation system mode. Use; in the re-inhalation system mode, can be used for traditional gas anesthesia without additional breathing system.
  • the exhalation line 4 can be connected with the exhalation check valve 6 to prevent backflow of gas.
  • the suction line 3 can be connected with the suction check valve 5 to prevent the gas from flowing backward.
  • the absorption device 8 is connected to the suction line 3, and the absorption device 8 is connected in parallel with the bypass branch 8a, the line between the bypass branch 8a and the suction line 3.
  • a bypass switching valve 10 is connected to the line between the absorption device 8 and the suction line 3, and the bypass switching valve 10 communicates the absorption device 8 with the suction line 3 or the bypass branch 8a and the suction
  • the gas line 3 is connected, that is, the bypass switching valve 10 One end is connected to the line between the bypass branch 8a and the suction line 3, and the other end is connected to the line between the absorption device 8 and the suction line 3.
  • the gas in the fresh gas supply line 7 can flow through the bypass branch 8a into the gas delivery device 9, for the re-inhalation system
  • the bypass branch 8a maintains the connection of the gas path while replacing the sodium lime in the absorption device 8.
  • the driving gas can be directly supplied to the patient, the driving gas does not have carbon dioxide, and the patient exhaled gas does not need to be reused, so sodium or lime is not needed, and at this time, it can be switched to the bypass branch 8a, or The soda lime is poured out without switching to the bypass branch 8a.
  • the bypass switching valve 10 may be provided in two, which are disposed at both ends of the absorption device 8 and the bypass branch 8a. Of course, only one bypass switching valve 10 may be provided.
  • the bypass switching valve 10 can be a suitable component such as a two-position three-way valve.
  • a connection line 32 is connected between the gas delivery device 9 and the switching device 14, and the connection line 32 is connected to the switching device 14 through the first branch pipe 33, and the connection line 32 is connected.
  • the second branch pipe 34 is connected to the suction line 3, and the connection line 32, the first branch pipe 33 and the second branch pipe 34 are connected by a three-way joint.
  • the absorbing device 8 and the bypass branch 8a and the bypass switching valve 10 can be connected to the second branch pipe 34.
  • a manual machine-operated switching valve 15 is connected to the connecting line 32, and a manual control switching valve 15 is connected to the manual control unit.
  • the manual machined switching valve 15 can be switched to the electric mode or the manual mode, and the switching process can be automatically controlled by the system or manually controlled by the medical staff.
  • the drive unit 12 When switching to the electric mode, the drive unit 12 is driven by the power source.
  • switching to manual mode healthcare personnel can operate by manually controlling the components.
  • the manual control unit includes an exhaust gas discharge pipe 35 connected to the manual machine control switching valve 15, and the exhaust gas discharge pipe 35 is connected with a pressing member such as a manual bladder 16 or a rubber ball, and an adjustable pressure limit. Valve 17 (APL).
  • the exhaust gas discharge pipe 35 can be connected to an exhaust gas treatment pipe or the like.
  • the drive branch further includes an intake line 18, the switching device 14 can connect the drive device 12 with the expiratory line 4 and the inspiratory line 3, or the switching device 14 will connect the intake line 18. It is connected to the inspiratory line 3, and the exhalation line 4 is connected to the exhaust line 31, and corresponds to the state of Fig. 1 and Fig. 2, respectively.
  • the switching device 14 has a first inlet 14a, a second inlet 14b, a first outlet 14c and a second outlet 14d, and the switching device 14 includes a first
  • the inlet 14a is electrically connected to the first outlet 14c, the second inlet 14b and the second outlet 14d, and a switching mechanism for switching to the first inlet 14a and the second outlet 14d, and the second inlet 14b and the first outlet 14c are electrically connected.
  • the spool driving mode of the switching mechanism can be manual, pneumatic or electromagnetic force driving.
  • the driving device 12 is connected with an intake pipe 18, and the intake pipe 18 and the first branch pipe 36 are both connected to the driving device 12, and the other end of the first branch pipe is connected to the first inlet 14a. .
  • Intake line 18 can provide gas
  • the driving device 12 is connected to the first inlet 14a through the first branch pipe 36
  • the driving device 12 is connected to the gas conveying device 9 through the second branch pipe 37
  • the second inlet 14b is connected to the exhalation line 4
  • the first outlet 14c is connected to the exhaust line
  • the second outlet 14d is connected to the gas delivery device 9 and the suction line 3
  • the second outlet 14d is connectable to the first branch pipe 33, the first branch pipe 33, the second branch pipe 34 and the connecting pipe
  • the road 32 can be connected by a tee.
  • the first inlet 14a is in communication with the first outlet 14c
  • the second inlet 14b is in communication with the second outlet 14d.
  • the first inlet 14a communicates with the second outlet 14d
  • the second inlet 14b communicates with the first outlet 14c.
  • the driving device 12 passes through the first branch 36, the first inlet 14a, and the first The second outlet 14d and the second branch pipe 34 can be connected to the suction line 3 together with the fresh gas supply line 7.
  • the second branch pipe 34, the fresh gas supply line 7 and the suction line 3 can be connected to On a tee.
  • the driving device 12 may be connected to the switching device 14 via the gas delivery device 9.
  • the driving device 12 is connected to the gas delivery device 9, and the gas delivery device 9 is connected to the switching device 14.
  • the exhaust line 31 is connected to the exhalation valve 13.
  • the gas delivery device 9 can be physically or non-physically isolated.
  • the gas delivery device 9 can be a folded capsule gas delivery device (as shown in FIG. 1 and FIG. 2), and a tortuous airway gas delivery device (eg, Figure 3, Figure 4), or a piston type gas delivery device.
  • a piston type gas delivery device When a piston type gas delivery device is used, it can also be driven by a motor.
  • the folded-pocket gas delivery device includes a housing and a folded bag disposed in the housing, and a space between the outer side of the folded bag and the inner side of the case communicates with the driving device 12, and a space inside the folded bag communicates with the switching device 14 And a suction line 3;
  • the meandering airway type air delivery device comprises a single, two or more zigzag air passages connected in parallel, the tortuous air passage is connected to the switching device 14 and the suction line 3;
  • the piston type gas transmission device includes a housing and a piston slidably disposed in the housing, and a housing of the piston type gas transmission device is coupled to the switching device 14 and the suction line 3.
  • the switching device 14 may be a two-position four-way reversing valve or a two-position three-way reversing valve 140 or the like.
  • the two-position three-way switching valve 140 may be provided with one, two or more.
  • the drive unit 12 can control the flow or pressure magnitude of the output through a proportional valve or turbine.
  • an adsorption material for adsorbing carbon dioxide is provided in the absorption device 8 (absorption tank), and the adsorption material is sodium lime.
  • the anesthesia machine breathing system has the switching device 14 as a system switching valve, which can realize switching between the double suction system and the non-re-inhalation system.
  • Figure 1 shows the state of the re-inhalation system.
  • the anesthesia machine is used for gas anesthesia.
  • the exhaled gas flows through the patient line 2, the exhalation port (exhalation line 4) and the exhalation check valve 6,
  • the second inlet 14b (port b) entering the switching device 14 exits the second outlet 14d (d-port) into the gas delivery device 9, while the fresh gas carrying the gas anesthetic drug passes through the fresh gas supply line 7 and also through the absorption device.
  • the exhaust gas discharge port 19 is usually connected to the exhaust gas of the hospital.
  • the exhalation valve 13 can control the pressure of the exhalation of the patient 1; when the patient 1 inhales, the driving gas generated by the driving device 12 enters the gas delivery device 9, and pushes the mixed gas of the exhaled gas and the fresh gas supply line 7.
  • gas When the absorption device 8 passes through the absorption device 8, the carbon dioxide is filtered out by the sodium and lime in the absorption device 8, and the exhaled gas which filters out the carbon dioxide flows together with the fresh gas supply line 7 through the suction check valve 5 and the suction port (the suction line 3). ), re-entering the lungs of patient 1 via patient line 2 to complete a breathing cycle.
  • the pressure and flow control of the inspiratory phase of the patient 1 is controlled by the driving device 12, which may be a proportional valve or a turbine. If a proportional valve is used as the driving device, the gas source gas may be a compressed oxygen/air bottle or a central gas from a hospital. Source; if the drive unit 12 is of a turbine type, the source gas may be taken from the atmosphere in the environment; if the gas delivery unit 9 is a piston, the drive unit 12 may be a motor.
  • the manual machined switching valve 15 can switch the system to the manual mode, at which time the ventilation is controlled by the manual bladder 16, and excess gas is discharged through the APL valve (adjustable pressure limiting valve 17).
  • Figure 2 shows the breathing system of the anesthesia machine of Figure 1 switched to the state of no re-inhalation system.
  • the carbon dioxide absorbent is not necessary, and the carbon dioxide absorbent in the absorption device 8 can be removed.
  • the bypass switching valve 10 is switched to the bypass branch 8a, and the switching mode may be automatic switching of the machine or manual switching.
  • the exhaled gas flows through the patient line 2, the exhalation port (exhalation line 4) and the exhalation check valve 6, and enters the second inlet 14b (b port) of the switching device 14, from the first An outlet 14c (c port) is directly discharged by the exhalation valve 13, and since the patient 1 exhaled gas does not contain anesthetic gas, it can be directly discharged into the surrounding environment, and the exhalation valve 13 can control the pressure of the exhalation of the patient 1;
  • the driving gas generated by the driving device 12 does not pass through the gas conveying device 9, enters from the first inlet 14a (a port) of the switching device 14, the second outlet 14d (d port) comes out, and then passes through the absorption device in sequence.
  • the suction check valve 5 the suction port (suction line 3), enter the patient 1 lung through the patient line 2, and complete a breathing cycle.
  • the pressure and flow control of the patient 1 inspiratory phase is controlled by the drive unit 12.
  • the anesthesia machine By switching to a non-re-inhalation system state, the anesthesia machine operates in a "ventilator mode" and can be used for intravenous anesthesia or as a ventilator.
  • the gas transfer device 9 can be slightly deformed.
  • Figure 3 shows the switch to the state of the re-inhalation system
  • Figure 4 shows the switch to the non-re-inhalation system state. Since the gas delivery device 9 does not isolate the driving gas from the respiratory system like a folded capsule or a piston, unlike the embodiment of Figs. 1 and 2, in the state of no re-inhalation system, as shown in Fig. 4, the patient 1 inhales.
  • the driving gas does not flow through the switching device 14, but directly passes through the gas delivery device 9, and then passes through the absorption device 8 or the bypass branch 8a, the suction check valve 5, and the suction port (the suction line 3). Entering the lungs of patient 1 via patient line 2.
  • the switching device 14 can adopt a two-position four-way reversing valve as shown in FIG. 1 to FIG. 4, and can also be composed of a plurality of valves. A typical two-position three-way reversing valve combination as shown in FIG. Made.
  • the switching device 14 can be switched by manual or automatic switching, and the driving scheme can be set according to actual conditions.
  • a three-way valve is taken as the switching device 14, which has a second inlet 14b (port), a first outlet 14c (c), and a second outlet 14d (d).
  • Figure 6 shows the state of the re-inhalation system.
  • the anesthesia machine is used for gas anesthesia.
  • the exhaled gas flows through the patient line 2, the exhalation port (exhalation line 4) and the exhalation check valve 6,
  • the second inlet 14b (port b) entering the switching device 14 exits the second outlet 14d (d-port) into the gas delivery device 9, while the fresh gas carrying the gas anesthetic drug passes through the fresh gas supply line 7 and also through the absorption device.
  • the driving device 12 enters the gas delivery device 9, at which time the driving device 12 is turned off, and the mixed gas formed by the exhaled gas and the gas supplied from the fresh gas supply line 7 pushes the driving gas in the gas delivery device 9 to the exhaust gas discharged through the exhaust line 31.
  • the mouth 19 is discharged. Due to the anesthetic gas in the exhaust gas, the exhaust gas discharge port 19 is usually connected to the hospital's exhaust gas treatment system, and the exhalation valve 13 can control the pressure of the patient 1 exhaling; when the patient 1 inhales, the driving device 12 generates The driving gas enters the gas delivery device 9, and the mixed gas of the exhaled gas and the fresh gas supply line 7 is pushed through the absorption device 8.
  • the carbon dioxide is filtered by the sodium and lime in the absorption device 8, and the carbon dioxide is filtered out.
  • the exhaled gas and the fresh gas supply line 7 flow together through the suction check valve 5, the suction port (suction line 3), and enter the patient 1 lung again through the patient line 2 to complete a breathing cycle.
  • the pressure and flow control of the inspiratory phase of the patient 1 is controlled by the driving device 12, which may be a proportional valve or a turbine. If a proportional valve is used as the driving device, the gas source gas may be a compressed oxygen/air bottle or a central gas from a hospital.
  • the manual machined switching valve 15 can switch the system to the manual mode, at which time the ventilation is controlled by the manual bladder 16, and excess gas is discharged through the APL valve (adjustable pressure limiting valve 17).
  • FIG 7 is a diagram showing the state in which the respiratory system of the multifunctional anesthesia machine of Figure 6 is switched to the non-re-inhalation system.
  • the carbon dioxide absorbent is not necessary, and the carbon dioxide absorbent in the absorption device 8 can be removed. It is also possible to switch to the bypass branch 8a by the bypass switching valve 10, and the switching mode may be automatic switching of the machine or manual switching.
  • the exhaled gas flows through the patient line 2, the exhalation port (exhalation line 4) and the exhalation check valve 6, and enters the second inlet 14b (b port) of the switching device 14, from the first An outlet 14c (c port) is directly discharged by the exhalation valve 13, and since the patient 1 exhaled gas does not contain anesthetic gas, it can be directly discharged into the surrounding environment, and the exhalation valve 13 can control the pressure of the exhalation of the patient 1;
  • the driving gas generated by the driving device 12 sequentially passes through the absorption device 8 or the bypass branch 8a, the suction check valve 5, the suction port (the suction line 3), and enters the patient through the patient line 2.
  • the anesthesia machine In the lungs of 1 , complete a breathing cycle.
  • the pressure and flow control of the patient 1 inspiratory phase is controlled by the drive unit 12.
  • the anesthesia machine By switching to a non-re-inhalation system state, the anesthesia machine operates in a "ventilator mode" and can be used for intravenous anesthesia or as a ventilator.
  • the driving device 12 is connected to the exhalation line 4 or the inspiratory line 3 as an example.
  • a turbine is used as the driving device 12, and the turbine is located on the inhalation line 3, exhaling.
  • the valve 6 is located on the expiratory line 4.
  • the turbine 12 is stopped or operated at a low speed, the exhalation valve 13 is opened, and the exhaled gas is stored in the skin capsule 16; during the inhalation phase, the exhalation valve 13 is closed, the turbine is at the required pressure or The flow output outputs the gas stored in the bladder 16 to the patient.
  • Fig. 8 the turbine 12 is stopped or operated at a low speed, the exhalation valve 13 is opened, and the exhaled gas is stored in the skin capsule 16; during the inhalation phase, the exhalation valve 13 is closed, the turbine is at the required pressure or The flow output outputs the gas stored in the bladder 16 to the patient.
  • the driving device 12 can also adopt a piston type driving device.
  • the piston type driving device includes a piston chamber and a piston disposed in the piston chamber. As shown in FIG. 10 and FIG. 11, the gas is first sucked into the piston chamber when inhaling, and when exhaling.
  • the gas is forced out from the piston chamber, and the check valve 51 ensures that the gas pushed out by the piston does not flow backward.
  • the piston type driving device is connected to the suction line 3, and the suction line 3 can also be connected with the check valve. 51.
  • the piston type drive unit can be connected to the line between the check valve 51 and the intake valve 5.
  • the anesthesia machine breathing system and anesthesia machine provided by the embodiments of the present invention are capable of performing quick switching between the non-re-inhalation system and the re-inhalation system, which can eliminate the disadvantages of the prior art, and, for different driving types, such as Proportional valve actuation or turbine drive, as well as different gas delivery devices 9, such as a folded bladder, piston or tortuous airway, enable switching between a non-re-inhalation system and a re-inhalation system.
  • the anesthesia machine When switching to the state of the re-inhalation system, the anesthesia machine can be used for traditional gas anesthesia; when switching to the non-re-inhalation system, the driving gas is directly inhaled by the patient 1, and the exhaled gas of the patient 1 is controlled to be discharged to the outside through the exhalation valve 13, not in the respiratory system. It can be used for intravenous anesthesia and as a ventilator.
  • the product is flexible and versatile.
  • the driving gas When switching to the non-re-inhalation system, the driving gas is directly inhaled by the patient 1, and the exhaled gas of the patient 1 is controlled to be discharged to the outside through the exhalation valve 13, and is not recycled in the respiratory system, and the medical staff need not always pay attention to whether the carbon dioxide absorbent needs to be replaced or not.
  • the anesthesia machine respiratory system provided by the embodiment of the present invention is not limited by the type of the gas delivery device, and may be a folding capsule, a piston or a tortuous airway type gas delivery device; and is not limited by the driving mode, and the driving device is It can be a proportional valve drive or a turbo drive.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

L'invention concerne un système respiratoire de machine d'anesthésie, et une machine d'anesthésie. Le système respiratoire de machine d'anesthésie comprend une branche d'entraînement et un tuyau d'évacuation (31), et comprend en outre un dispositif de commutation (14) utilisé pour introduire un gaz expiré par un patient dans la branche d'entraînement ou le tuyau d'évacuation (31) sélectivement pour réaliser une commutation entre une réinspiration et une non-réinspiration. Le dispositif de commutation (14) est relié à la branche d'entraînement et au tuyau d'évacuation (31), et la branche d'entraînement est reliée à un dispositif d'absorption (8). La machine d'anesthésie comprend le système respiratoire de machine d'anesthésie. Le système respiratoire de machine d'anesthésie et la machine d'anesthésie peuvent réaliser une commutation rapide entre un système de non-réinspiration et un système de réinspiration. Dans le mode de système de non-réinspiration, il n'est pas nécessaire pour le personnel médical de prêter attention à un absorbant de dioxyde de carbone dans le dispositif d'absorption (8) pour voir s'il a besoin d'être remplacé, de telle sorte que la charge du personnel médical est atténuée et l'utilisation est pratique.
PCT/CN2014/092785 2014-12-02 2014-12-02 Système respiratoire de machine d'anesthésie, et machine d'anesthésie Ceased WO2016086354A1 (fr)

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CN201480017240.0A CN105517612B (zh) 2014-12-02 2014-12-02 麻醉机呼吸系统及麻醉机
PCT/CN2014/092785 WO2016086354A1 (fr) 2014-12-02 2014-12-02 Système respiratoire de machine d'anesthésie, et machine d'anesthésie

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CN114271988A (zh) * 2021-12-15 2022-04-05 上海梅理实验科技有限公司 一种动物麻醉机
CN114748753A (zh) * 2022-03-30 2022-07-15 深圳市安保医疗科技股份有限公司 气路系统、麻醉机及气路通气方法

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CN111479608B (zh) * 2017-12-15 2024-05-24 马奎特紧急护理公司 呼吸系统部件以及用于制造呼吸系统部件的方法
EP3875135B1 (fr) * 2018-10-31 2023-08-23 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Dispositif de respiration d'anesthésie
EP4085955B1 (fr) * 2019-12-30 2024-10-16 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Système de ventilation médicale
EP4154931A4 (fr) * 2020-12-16 2023-08-16 Shenzhen Mindray Animal Medical Technology Co., Ltd. Machine d'anesthésie, machine d'anesthésie vétérinaire, et son appareil de support de cuve d'absorption de gaz d'échappement
CN119607347A (zh) * 2020-12-31 2025-03-14 深圳迈瑞动物医疗科技股份有限公司 麻醉机及兽用麻醉机
CN112791284A (zh) * 2021-01-27 2021-05-14 天津仟易鑫科技发展有限公司 一种呼吸回路
CN112774022B (zh) * 2021-02-02 2021-10-08 重庆普施康科技发展股份有限公司 一种气囊快充式体外反搏装置
CN113082441A (zh) * 2021-04-02 2021-07-09 深圳华声医疗技术股份有限公司 麻醉机气路系统及麻醉机

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CN114748753A (zh) * 2022-03-30 2022-07-15 深圳市安保医疗科技股份有限公司 气路系统、麻醉机及气路通气方法

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