CN110613875A - Severe patient breathes auxiliary device - Google Patents

Abstract

The invention discloses a respiratory assistance device for critically ill patients. The air supply conversion assembly of the invention can automatically switch between air supply from the main oxygen cylinder and air supply from the auxiliary oxygen cylinder according to the pressure in the main oxygen cylinder. When the pressure value in the main oxygen cylinder is greater than the set value, the breathing outlet control valve seat is supplied by the main oxygen cylinder; and when the pressure value in the main oxygen cylinder is less than the set value, the breathing outlet air control valve seat is supplied by the auxiliary oxygen cylinder. It can effectively realize the automatic switching of gas supply between the main oxygen cylinder and the auxiliary oxygen cylinder; when the pressure value of the main oxygen cylinder is less than the set value, after replacing the new main oxygen cylinder, the gas supply is switched. The assembly also enables the main oxygen cylinder to re-supply the breathing air control valve seat while inflating the auxiliary oxygen cylinder, which can effectively ensure the reliability and continuity of oxygen supply and prevent problems such as instantaneous interruptions. Improve the patient's cardiorespiratory stability.

Description

A respiratory aid device for critically ill patients

technical field

The invention relates to the technical field of medical equipment, in particular to a respiratory assistance device for critically ill patients.

Background technique

For critically ill patients, an oxygen infusion machine is generally required for assisted breathing. Since critically ill patients generally need to perform assisted breathing for a long time, this leads to the reduction of oxygen in the oxygen cylinder or the exhaustion of use, if it cannot be replaced in time, it will have adverse effects on the patient, and even if it is replaced, during the replacement period, It will also easily affect the patient's breathing, causing adverse fluctuations in the heart and lungs. At the same time, because the temperature and humidity of the oxygen cylinder will be slightly different, it is easy to cause discomfort in critically ill patients after replacement, resulting in the patient's heart and lungs. Large fluctuations, such fluctuations generally do not have a large impact on general patients, but for critically ill patients, such fluctuations may have a greater adverse impact on the recovery of critically ill patients. The patient's ability to assist in breathing and to maintain this state all the time plays an extremely important role in the first aid of critically ill patients.

Therefore, the present invention provides a respiratory assistance device for critically ill patients to solve the above-mentioned problems in the background art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a respiratory assistance device for critically ill patients to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A respiratory assistance device for critically ill patients, comprising a main oxygen cylinder, an auxiliary oxygen cylinder, an air supply conversion assembly, a breathing air outlet control valve seat and a breathing mask, wherein the main oxygen cylinder and the auxiliary oxygen cylinder are both connected to the air supply conversion assembly, the air outlet end of the air supply conversion assembly is connected to the breathing air outlet control valve seat, and the air outlet end of the breathing air outlet air control valve seat is connected to the breathing mask by an air intake hose; it is characterized in that,

The gas supply conversion assembly can automatically switch between the gas supply from the main oxygen cylinder and the gas supply from the auxiliary oxygen cylinder according to the pressure in the main oxygen cylinder; and

When the pressure value in the main oxygen cylinder is greater than the set value, the breathing outlet control valve seat is supplied by the main oxygen cylinder; and when the pressure value in the main oxygen cylinder is less than the set value the breathing outlet control valve seat is supplied by the auxiliary oxygen cylinder; and

When the pressure value of the main oxygen cylinder is less than the set value, after the main oxygen cylinder is replaced with a new one, the gas supply conversion assembly can also enable the main oxygen cylinder to re-supply gas to the breathing outlet control valve seat. At the same time, the auxiliary oxygen cylinder is inflated.

Further, preferably, the volume of the inner cavity of the main oxygen cylinder is at least twice the volume of the inner cavity of the auxiliary oxygen cylinder.

Further, preferably, the air supply conversion assembly includes a seat body, a control valve core, a top pressure plug and a spring column, wherein the seat body is provided with a processing cavity and a switching cavity that are connected together by a communication hole, and the communication The top pressure plug is movably arranged in the hole, and the top pressure plug is fixed on one end of the control valve core, and the other end of the control valve core is connected to the air outlet pipe joint by using the spring column , and the spring column is located in the switching chamber, the processing chamber is communicated with an air inlet connector, the air inlet connector is connected to the main oxygen cylinder, and the switching chamber is also connected to the auxiliary oxygen cylinder, and when the pressure value of the main oxygen cylinder can make the pressing plug push the spring force of the spring column, the main oxygen cylinder communicates with the switching chamber through the processing chamber, when the When the pressure value of the main oxygen cylinder is not enough for the spring force of the top pressure plug to push the spring column, the communication hole is sealedly connected with the top pressure plug, and the switching chamber is supplied with air from the auxiliary oxygen cylinder.

Further, preferably, a ceramic sleeve with an annular structure is embedded on the inner wall of the processing chamber, and a preheating heater is closely attached to the inner side of the ceramic sleeve.

Further, preferably, one end of the communication channel close to the processing cavity is a conical or cylindrical structure, and the end of the communication channel close to the conversion cavity is a circular arc cone structure, and the circular arc cone The shape structure is provided with a communication groove extending along its generatrix direction.

Further, preferably, it also includes an installation base plate, the upper surface edge of the installation base plate is installed with four support rods in a rectangular distribution, the upper end of the support rod is fixedly installed with a support platform, and the upper surface edge position of the support platform is installed. A mounting block is fixedly installed, a display screen is arranged on the rear end of the upper surface of the mounting block, and a control panel is arranged on the inclined surface of the front end of the upper surface of the mounting block to control the breathing and outgassing control valve seat, and the breathing and outgassing control valve seat is installed on the support platform.

Further, preferably, the auxiliary oxygen input pipe is fixedly installed on the middle position of the upper surface of the auxiliary oxygen cylinder, the main oxygen input pipe is fixedly installed at the middle position of the upper surface of the main oxygen cylinder, and the gas outlet pipe of the gas supply conversion assembly is fixedly installed. Connect the oxygen supply tube to the connector.

Further, preferably, both the main oxygen input pipe and the auxiliary oxygen input pipe are provided with a gas flow rate sensor, a gas pressure sensor or a gas flow sensor, and the main oxygen input pipe is also provided with a one-way valve.

Further, preferably, the breathing mask includes an air inlet pipe joint fixedly installed with the gas mixing chamber, one end of the air inlet pipe joint is fixedly installed with an air intake hose, and an upper end of the air intake hose is fixedly installed with a medicine cup, The upper end of the medicine cup is fixedly installed with a transition joint, the upper end of the transition joint is fixedly installed with a mask body, the side surface of the mask body is symmetrically provided with through holes, and the edge position of the side surface of the mask body is fixedly installed with an elastic band. pieces.

Further, preferably, a transition joint is fixedly installed on the lower surface of the front end of the mask body, and the mask body is fixedly connected to the medicine cup through the transition joint.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The gas supply conversion assembly of the present invention can automatically switch between the gas supply by the main oxygen cylinder and the gas supply by the auxiliary oxygen cylinder according to the pressure in the main oxygen cylinder. In this way, when the pressure value in the main oxygen cylinder is When it is greater than the set value, the breathing outlet control valve seat is supplied by the main oxygen cylinder; and when the pressure value in the main oxygen cylinder is less than the set value, the breathing outlet control valve seat is supplied by the auxiliary oxygen cylinder; it can effectively Realize the automatic switching of gas supply between the main oxygen cylinder and the auxiliary oxygen cylinder, without the need for manual monitoring at all times, and improve the use ability and safety effect;

(2) In the present invention, when the pressure value of the main oxygen cylinder is less than the set value, after the main oxygen cylinder is replaced with a new one, the gas supply conversion assembly can also make the main oxygen cylinder re-supply gas to the breathing outlet control valve seat At the same time, the auxiliary oxygen cylinder is inflated, so that the reliability and continuity of the oxygen supply can be effectively ensured, and problems such as instantaneous interruption can be prevented, and the cardiopulmonary stability of the patient can be improved;

(3) The structural design of the present invention can improve the reliability and stability of the operation of the equipment. The present invention connects the mask body and the medicine cup by providing a transition joint, which is convenient for disassembly and installation, thereby simplifying the cleaning steps of the breathing assistance device and reducing the The work intensity of medical staff improves the cleaning efficiency.

Description of drawings

Fig. 1 is the structural representation of a kind of respiratory assistance device for critically ill patients;

Fig. 2 is a kind of structural representation of oxygen content adjustment device in the respiratory assistance device for critically ill patients;

FIG. 3 is a schematic structural diagram of a respiratory mask in a respiratory assistance device for critically ill patients.

FIG. 4 is a schematic structural diagram of an air supply conversion assembly of a respiratory assistance device for critically ill patients.

Detailed ways

Referring to FIGS. 1 to 4 , in an embodiment of the present invention, a respiratory assistance device for critically ill patients includes a main oxygen cylinder 16 , an auxiliary oxygen cylinder 11 , an air supply conversion assembly 10 , a breathing outlet control valve seat 7 and a breathing mask 8 , wherein , the main oxygen cylinder 16 and the auxiliary oxygen cylinder 11 are both connected to the air supply conversion assembly 10, and the air outlet end of the air supply conversion assembly 10 is connected to the breathing outlet control valve seat 7, the breathing outlet control valve The air outlet end of the seat 7 is connected to the breathing mask 8 by an air intake hose; it is characterized in that the air supply conversion assembly 10 can automatically supply air from the main oxygen cylinder according to the pressure in the main oxygen cylinder 16 switching between air supply from an auxiliary oxygen cylinder; and

When the pressure value in the main oxygen cylinder 16 is greater than the set value, the breathing outlet control valve seat 7 is supplied by the main oxygen cylinder 16; and when the pressure value in the main oxygen cylinder 16 is less than the set value When the value is fixed, the breathing air control valve seat 7 is supplied by the auxiliary oxygen cylinder 11; and

When the pressure value of the main oxygen cylinder is less than the set value, after the main oxygen cylinder is replaced with a new one, the gas supply conversion assembly 10 can also make the main oxygen cylinder re-supply the breathing outlet control valve seat 7 The auxiliary oxygen cylinder 11 is inflated at the same time.

In this embodiment, the volume of the inner cavity of the main oxygen cylinder 16 is at least 10 times the volume of the inner cavity of the auxiliary oxygen cylinder 11 .

As a preferred embodiment, the air supply conversion assembly 10 includes a seat body 28 , a control valve core 31 , a pressing plug and a spring column 33 , wherein the seat body 28 is provided with a process that uses communication holes to communicate together. Cavity 30 and switching cavity 32, the top pressure plug is movably provided in the communication hole, and the top pressure plug is fixed at one end of the control valve core, and the other end of the control valve core adopts The spring column 33 is connected to the air outlet pipe joint 34, and the spring column is located in the switching chamber, the processing chamber 30 is communicated with the air inlet connector 25, and the air inlet connector is connected to the main oxygen cylinder, The switching chamber 32 is also connected to the auxiliary oxygen cylinder by using the auxiliary air inlet joint 29, and when the pressure value of the main oxygen cylinder can make the pressing plug push the spring force of the spring column, the main oxygen The bottle communicates with the switching chamber 32 through the processing chamber. When the pressure value of the main oxygen bottle is not enough to make the top pressure plug push the spring force of the spring column, the communication hole is sealed with the top pressure plug. , and the switching chamber 32 is supplied by the auxiliary oxygen cylinder.

In order to ensure the temperature performance of the input oxygen, the inner wall of the processing chamber 30 is embedded with a ceramic sleeve 26 with an annular structure, and a preheating heater 27 is closely arranged on the inner side of the ceramic sleeve.

Wherein, the end of the communication channel close to the processing cavity is a conical or cylindrical structure, the end of the communication channel close to the conversion cavity is a circular arc cone structure, and the circular arc cone structure A communication groove extending along its generatrix direction is opened.

In addition, the present invention also includes an installation base plate 1, the upper surface edge of the installation base plate 1 is installed with four support rods 3 in a rectangular distribution, the upper end of the support rod 3 is fixedly installed with a support platform 9, and the support platform 9 A mounting block 6 is fixedly installed at the edge position of the upper surface of the mounting block 6, the rear end of the upper surface of the mounting block 6 is provided with a display screen 5, and the front end slope position of the upper surface of the mounting block 6 is provided with a control valve seat 7 for controlling the breathing and outgassing. The control panel 4 of the control panel 4, and the breathing and outgassing control valve seat 7 are installed on the supporting platform 9.

The auxiliary oxygen input pipe 12 is fixedly installed on the middle position of the upper surface of the auxiliary oxygen cylinder 11, the main oxygen input pipe 15 is fixedly installed on the middle position of the upper surface of the main oxygen cylinder 16, and the gas outlet pipe joint of the gas supply conversion assembly 34 is connected to the oxygen supply pipe 13.

The main oxygen input pipe 15 and the auxiliary oxygen input pipe 12 are provided with a gas flow rate sensor, a gas pressure sensor or a gas flow sensor 14, and the main oxygen input pipe 15 is also provided with a one-way valve 24. The breathing mask 8 includes an air intake pipe joint 23 fixedly installed with the gas mixing chamber 7, one end of the air intake pipe joint 23 is fixedly installed with an air intake hose 22, and an upper end of the air intake hose 22 is fixedly installed with a medicine cup. 21. A transition joint 20 is fixedly installed on the upper end of the medicine cup 21, and a mask body 17 is fixedly installed on the upper end of the transition joint 20. The side surface of the mask body 17 is symmetrically provided with a through hole 18. An elastic band fixing member 19 is fixedly installed on the edge of the side surface.

A transition joint 20 is fixedly installed on the lower surface of the front end of the mask body 17 , and the mask body 17 is fixedly connected to the medicine cup 21 through the transition joint 20 .

A protective cover 35 is also sleeved on the outside of the base body 28 of the air supply conversion assembly 10 .

The gas supply conversion assembly of the present invention can automatically switch between the gas supply by the main oxygen cylinder and the gas supply by the auxiliary oxygen cylinder according to the pressure in the main oxygen cylinder. In this way, when the pressure value in the main oxygen cylinder is greater than the set value When the pressure value in the main oxygen cylinder is lower than the set value, the breathing outlet control valve seat is supplied by the auxiliary oxygen cylinder; The automatic switching of the gas supply between the cylinder and the auxiliary oxygen cylinder does not require manual monitoring at all times, and improves the use ability and safety effect; when the pressure value of the main oxygen cylinder is less than the set value, the invention will replace the new main oxygen cylinder. After that, the gas supply conversion assembly can also make the main oxygen cylinder re-supply the breathing and outlet air control valve seat while inflating the auxiliary oxygen cylinder, so that the reliability and continuity of the oxygen supply can be effectively guaranteed. , to prevent problems such as momentary interruption, and improve the stability of the patient's heart and lungs; the structural design of the present invention can improve the reliability and stability of equipment operation, and the present invention connects the mask body and the medicine cup by setting a transition joint, which is convenient for disassembly and installation. The cleaning steps of the respiratory aid device are simplified, the work intensity of medical personnel is reduced, and the cleaning efficiency is improved.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The equivalent replacement or modification of the solution and its inventive concept shall be included within the protection scope of the present invention.

Claims (10)

1. A respiratory assistance device for critically ill patients, comprising a main oxygen cylinder (16), an auxiliary oxygen cylinder (11), an air supply conversion assembly (10), a breathing outlet control valve seat (7) and a breathing mask (8), wherein, The main oxygen cylinder (16) and the auxiliary oxygen cylinder (11) are both connected to the air supply conversion assembly (10), and the air outlet end of the air supply conversion assembly (10) is connected to the breathing air outlet control valve seat ( 7), the air outlet end of the breathing air outlet control valve seat (7) is connected to the breathing mask (8) by an air intake hose; it is characterized in that, The gas supply conversion assembly (10) can automatically switch between the gas supply by the main oxygen cylinder and the gas supply by the auxiliary oxygen cylinder according to the pressure in the main oxygen cylinder (16); and When the pressure value in the main oxygen cylinder (16) is greater than the set value, the breathing outlet control valve seat (7) is supplied by the main oxygen cylinder (16); and when the main oxygen cylinder ( When the pressure value in 16) is less than the set value, the breathing outlet control valve seat (7) is supplied with air by the auxiliary oxygen cylinder (11); and When the pressure value of the main oxygen cylinder is less than the set value, after the main oxygen cylinder is replaced with a new one, the gas supply conversion assembly (10) can also make the main oxygen cylinder control the valve seat (7) for breathing out air. ) to re-supply the auxiliary oxygen cylinder (11) and inflate the auxiliary oxygen cylinder (11). 2 . The respiratory assistance device for critically ill patients according to claim 1 , wherein the inner cavity volume of the main oxygen cylinder ( 16 ) is at least 10 times the inner cavity volume of the auxiliary oxygen cylinder ( 11 ). 3 . 3 . The respiratory assistance device for critically ill patients according to claim 1 , wherein the air supply conversion assembly ( 10 ) comprises a seat body ( 28 ), a control valve core ( 31 ), a top pressure plug and a spring column. 4 . (33), wherein the seat body (28) is provided with a processing cavity (30) and a switching cavity (32) that are communicated together by a communication hole, and the top pressure plug is movably provided in the communication hole , and the top pressure plug is fixed on one end of the control valve core, the other end of the control valve core is connected to the air outlet pipe joint (34) by the spring column (33), and the spring column Located in the switching chamber, the processing chamber (30) is communicated with an air inlet connector (25), the air inlet connector is connected to the main oxygen cylinder, and the switching chamber (32) also adopts an auxiliary air inlet connector ( 29) is connected to the auxiliary oxygen cylinder, and when the pressure value of the main oxygen cylinder can make the top pressure plug push the spring force of the spring column, the main oxygen cylinder is connected to the switch through the processing chamber The cavity (32) is communicated, and when the pressure value of the main oxygen cylinder is insufficient to make the spring force of the top pressure plug to push the spring column, the communication hole is sealedly connected to the top pressure plug, and the switching cavity (32) ) is supplied by the auxiliary oxygen cylinder. 4 . The respiratory assistance device for critically ill patients according to claim 3 , wherein a ceramic sleeve ( 26 ) with an annular structure is embedded on the inner wall of the treatment cavity ( 30 ), and the inner side of the ceramic sleeve is tightly closed. 5 . The sticker is provided with a preheating heater (27). 5 . The respiratory assistance device for critically ill patients according to claim 3 , wherein one end of the communication channel close to the treatment cavity is a conical or cylindrical structure, and the communication channel close to the conversion One end of the cavity is a circular arc conical structure, and the circular arc conical structure is provided with a communication groove extending along its generatrix direction. 6. A respiratory assistance device for critically ill patients according to claim 3, characterized in that it further comprises an installation bottom plate (1), and four support rods are installed on the upper surface edge position of the said installation bottom plate (1) in a rectangular distribution. (3), a support platform (9) is fixedly installed on the upper end of the support rod (3), a mounting block (6) is fixedly installed on the edge of the upper surface of the support platform (9), and the mounting block (6) A display screen (5) is provided at the rear end of the upper surface of the mounting block (6), and a control panel (4) for controlling the breathing and air-out control valve seat (7) is provided on the front-end slope position of the upper surface of the installation block (6). The seat (7) is mounted on the support platform (9). 7. A kind of respiratory assistance device for critically ill patients according to claim 6, characterized in that, an auxiliary oxygen input pipe (12) is fixedly installed on the middle position of the upper surface of the auxiliary oxygen cylinder (11), and the main oxygen cylinder A main oxygen input pipe (15) is fixedly installed in the middle position of the upper surface of (16), and an oxygen supply pipe (13) is connected to the gas outlet pipe joint (34) of the gas supply conversion assembly. 8. a kind of respiratory assistance device for critically ill patients according to claim 1, is characterized in that, described main oxygen input pipe (15) and auxiliary oxygen input pipe (12) are all provided with gas flow rate sensor, gas pressure sensor or The gas flow sensor (14) is also provided with a check valve (24) on the main oxygen input pipe (15). 9 . The respiratory assistance device for critically ill patients according to claim 8 , wherein the breathing mask ( 8 ) comprises an air inlet pipe joint ( 23 ) fixedly installed with the gas mixing chamber ( 7 ), and the air inlet pipe An air intake hose (22) is fixedly installed at one end of the joint (23), a medicine cup (21) is fixedly installed at the upper end of the air intake hose (22), and a transition joint is fixedly installed at the upper end of the medicine cup (21). (20), the upper end of the transition joint (20) is fixedly mounted with a mask body (17), the side surface of the mask body (17) is symmetrically provided with through holes (18), and the side surface of the mask body (17) An elastic band fixing member (19) is fixedly installed at the surface edge position. 10. A respiratory assistance device for critically ill patients according to claim 9, wherein a transition joint (20) is fixedly installed on the lower surface of the front end of the mask body (17), and the mask body (17) passes through the transition The joint (20) is fixedly connected with the medicine cup (21).