CN216222554U - Inhalation therapy device - Google Patents
Inhalation therapy device Download PDFInfo
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- CN216222554U CN216222554U CN202121055491.1U CN202121055491U CN216222554U CN 216222554 U CN216222554 U CN 216222554U CN 202121055491 U CN202121055491 U CN 202121055491U CN 216222554 U CN216222554 U CN 216222554U
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Abstract
The utility model discloses inhalation therapy equipment, which comprises a respirator, a therapeutic gas supply device, an exhalation gas discharge device and a central processing unit, wherein the respirator is connected with the therapeutic gas supply device; the respirator is provided with an air inlet and an air outlet; the treatment gas supply device comprises a gas supply unit and a gas inlet machine; the air supply unit is connected with a flow controller through an air supply pipe, the flow controller is connected with an air inlet of the respirator through an air inlet pipe, and a sensor assembly is arranged on the air inlet pipe; the air inlet machine is connected with the air inlet pipe through a branch pipe, and a control unit is arranged on the branch pipe; the exhaled gas discharge device comprises an exhaust pipe, an exhaust machine, a buffer and a first pressure sensor, wherein the exhaust machine, the buffer and the first pressure sensor are arranged on the exhaust pipe; the central processor is respectively electrically connected with the therapeutic gas supply device and the exhaled gas discharge device. The utility model has simple structure and can be suitable for inhalation treatment of gases such as nitric oxide and the like.
Description
Technical Field
The present invention relates to the technical field of medical devices, and more particularly, to an inhalation therapy device.
Background
Inhalation of low concentrations of Nitric Oxide (NO) has been investigated as an effective treatment for diseases such as pulmonary hypertension. However, nitrogen monoxide originallyIt has strong oxidizing property and can generate nitrogen dioxide (NO) by reacting with oxygen in respiratory pathway2). Nitrogen dioxide (NO)2) Belonging to a toxic gas, nitrogen dioxide (NO)2) Inhalation can be highly irritating and corrosive to lung tissue. In particular, nitrogen dioxide (NO)2) Once inhaled into a human body, the medicine may cause severe pulmonary edema and other symptoms, even more severe and even death, and is very dangerous.
In the existing inhalation therapy of nitric oxide, Nitric Oxide (NO) and oxygen (O) exist2) Combine to produce nitrogen dioxide (NO)2) There are many opportunities for this to result in a significant risk of nitric oxide inhalation therapy, the nitrogen dioxide (NO) produced2) Also pollutes the treatment environment, and causes the surrounding personnel to inhale nitrogen dioxide (NO)2) Such toxic gases. Based on this, the safety of Nitric Oxide (NO) inhalation therapy is a major concern for medical workers and patients, and this also affects the clinical application of Nitric Oxide (NO) inhalation therapy to some extent.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a new solution for an inhalation therapy device.
According to an aspect of the present invention, there is provided an inhalation therapy apparatus comprising:
the respirator is provided with an air inlet and an air outlet respectively;
a therapeutic gas supply device comprising a gas supply unit and a gas inlet machine; the air supply unit is connected with a flow controller through an air supply pipe, the flow controller is connected with an air inlet of the respirator through an air inlet pipe, and a sensor assembly is arranged on the air inlet pipe; the air inlet machine is connected with the air inlet pipe through a branch pipe, and a control unit is arranged on the branch pipe;
the breathing gas exhaust device comprises an exhaust pipe, an exhaust machine, a buffer and a first pressure sensor, wherein the exhaust machine, the buffer and the first pressure sensor are arranged on the exhaust pipe; and the number of the first and second groups,
the central controller is respectively electrically connected with the therapeutic gas supply device and the exhaled gas discharge device.
Optionally, the respirator is a respiratory mask.
Optionally, the gas supply unit is a nitric oxide generator or a compressed gas cylinder with nitric oxide stored inside;
and the air outlet of the air supply unit is connected with the air inlet of the air supply pipe.
Optionally, the flow controller includes a gas concentration dilution chamber configured to dilute the concentration of the therapeutic gas output by the gas supply unit to a set gas concentration.
Optionally, the control unit is an electromagnetic valve or a three-way electromagnetic valve, and the control unit is electrically connected with the central controller through a wire.
Optionally, the air inlet machine, the flow controller and the sensor assembly are respectively electrically connected with the central controller through wires.
Optionally, the sensor assembly includes a nitric oxide concentration sensor, a nitrogen dioxide concentration sensor, and a second pressure sensor.
Optionally, the air inlet pipe is further provided with an on-off control valve, and the on-off control valve is electrically connected with the central controller through a lead;
and the switch control valve is arranged close to the air outlet of the air inlet pipe.
Optionally, a valve and/or a three-way valve is/are further arranged on the exhaust pipe;
the valve is an electromagnetic valve, and the electromagnetic valve is electrically connected with the central controller through a lead;
the three-way valve is a three-way electromagnetic valve and is electrically connected with the central controller through a lead.
Optionally, a temperature sensor is provided at the air inlet of the respirator.
The embodiment of the utility model provides an inhalation treatment deviceAnd the device has the advantages of simple structure, low manufacturing cost and convenient operation. According to the inhalation therapy device provided by the embodiment of the utility model, the therapeutic gas supply device and the exhalation gas discharge device are separately arranged and respectively and independently operated; the therapeutic gas supply device can supply low-concentration Nitric Oxide (NO), can ensure that the patient inhales the Nitric Oxide (NO) with proper concentration in the inhalation treatment, and can avoid toxic nitric dioxide from being inhaled into the body of the patient. The whole treatment environment is safe and reliable, the problem of pollution to the treatment environment does not exist, and the situation that surrounding personnel inhale toxic nitrogen dioxide (NO) can be avoided2) The defect problem of the existing nitric oxide inhalation therapy is overcome.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
Fig. 1 is a schematic structural diagram of an inhalation therapy apparatus according to an embodiment of the present invention.
Description of reference numerals:
1-respirator, 2-therapeutic gas supply, 201-gas supply unit, 202-gas inlet, 203-flow controller, 204-gas supply pipe, 205-gas inlet pipe, 206-sensor assembly, 207-manifold, 208-control unit, 3-exhaled gas exhaust, 301-gas outlet pipe, 302-gas exhauster, 303-buffer, 304-first pressure sensor, 305-valve, 306-three-way valve, 4-central controller.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The embodiment of the utility model provides an inhalation therapy device, which can be used for inhalation therapy of Nitric Oxide (NO), can be applied to clinically treating diseases such as pulmonary hypertension and the like, can improve the safety of the nitric oxide inhalation therapy, and can overcome the defect problems in the existing nitric oxide inhalation therapy.
It should be noted that the inhalation therapy device provided by the embodiments of the present application can be applied to the nitric oxide inhalation therapy but is not limited to the nitric oxide inhalation therapy. The inhalation therapy device provided by the embodiment of the present application can also be applied to inhalation therapy such as methane, some radioactive gases, etc., and the present invention is not limited thereto.
An inhalation therapy apparatus according to an embodiment of the present invention is, as shown in fig. 1, an inhalation therapy apparatus including: a ventilator 1, a therapeutic gas supply device 2, an exhalation gas discharge device 3, and a central controller 4; wherein, the respirator 1 is respectively provided with an air inlet and an air outlet; the therapeutic gas supply device 2 comprises a gas supply unit 201 and a gas inlet machine 202; the air supply unit 201 is connected with a flow controller 203 through an air supply pipe 204, the flow controller 203 is connected with an air inlet of the respirator 1 through an air inlet pipe 205, and a sensor assembly 206 is arranged on the air inlet pipe 205; the air inlet machine 202 is connected with the air inlet pipe 205 through a branch pipe 207, and a control unit 208 is arranged on the branch pipe 207; the exhaled gas discharging device 3 comprises an exhaust pipe 301, and an exhaust machine 302, a buffer 303 and a first pressure sensor 304 which are arranged on the exhaust pipe 301, wherein the air inlet of the exhaust pipe 301 is connected with the air outlet of the respirator 1; the central controller 4 is electrically connected to the therapeutic gas supply device 2 and the exhaled gas discharge device 3, respectively.
The inhalation therapy device provided by the embodiment of the present invention, wherein the therapeutic gas supply device 2 can provide a low concentration of Nitric Oxide (NO), for example, for a user to perform Nitric Oxide (NO) inhalation therapy.
The inhalation therapy equipment provided by the embodiment of the utility model has the advantages of simple structure, low manufacturing cost and convenience in operation.
In the inhalation therapy apparatus provided by the embodiment of the present invention, the therapeutic gas supply device 2 and the exhalation gas discharge device 3 are separately provided and can be operated independently; the therapeutic gas supply device 2 can supply therapeutic gas of Nitric Oxide (NO) with proper concentration, can ensure that the Nitric Oxide (NO) gas with proper concentration is inhaled by a patient in the inhalation therapy, and can reduce the combination chance of nitric oxide and oxygen, thereby avoiding toxic nitrogen dioxide gas from being inhaled by the patient. The whole treatment environment is safe and reliable, and the problem of pollution to the treatment environment does not exist, thereby avoiding toxic nitrogen dioxide (NO) inhaled by surrounding personnel2) The defect problem of the existing nitric oxide inhalation therapy is overcome.
The inhalation therapy device provided by the embodiment of the utility model can reduce the chance of combining nitric oxide and oxygen to generate nitrogen dioxide in the process of carrying out nitric oxide inhalation therapy on a patient because: the nitric oxide gas provided by the gas supply unit 201 is very rapidly inhaled by the patient after being mixed with oxygen or air (provided by the gas inlet 202), and is discharged after being breathed by the patient, so that the time is short, and even if nitrogen dioxide is generated, the amount of the nitrogen dioxide is very small and is not enough to be harmful; the more important reason is that the gas exhaled by the patient is quickly exhausted by the exhaust tube 301, and the regenerated nitrogen dioxide is not inhaled by the patient, which is the innovation of the inhalation therapy device of the present invention.
In an alternative example of the utility model, the respirator 1 is a breathing mask. When in use, the breathing mask is directly worn on the face (mouth and nose area) of a user to be treated. The use is very convenient.
Wherein the cavity in the breathing mask is relatively small, and the space between the breathing mask and the face of the patient is as small as possible after the breathing mask is worn by the patient. In this way, the gas exhaled by the patient can be quickly and completely expelled out of the respirator without creating a stagnation in the respirator, which also avoids the formation of nitrogen dioxide.
In an embodiment of the present invention, the gas supply unit 201 is a nitric oxide generator or a compressed gas cylinder storing nitric oxide therein; and, the air outlet of the air supply unit 201 is connected with the air inlet of the air supply pipe 204.
The gas supply unit 201 is used for providing a source of therapeutic gas, such as Nitric Oxide (NO) gas, and the therapeutic gas supplied by the gas supply unit 201 can be sent to the next unit through the gas supply pipe 204 connected thereto.
In an alternative example of the present invention, the flow controller 203 includes a gas concentration dilution chamber, and the gas concentration dilution chamber can be used to dilute the concentration of the therapeutic gas output by the gas supply unit 201 to a set concentration.
That is, the flow controller 203 may not only control the amount of the Nitric Oxide (NO) gas to be inhaled supplied from the gas supply unit 201, but also appropriately dilute and adjust the concentration of the supplied Nitric Oxide (NO) gas. With such a design, when the gas supply unit 201 takes the form of a compressed gas cylinder, nitric oxide gas having a high concentration can be stored therein, and more therapeutic gas can be stored.
In an embodiment of the present invention, as shown in fig. 1, the therapeutic gas supply device 2 includes a gas inlet 202, the gas inlet 202 is connected to the gas inlet pipe 205 through a branch pipe 207, the control unit 208 disposed on the branch pipe 207 is a three-way solenoid valve or a solenoid valve, and the control unit 208 is electrically connected to the central controller 4 through a wire.
The air intake 202 may be, for example, an air fan or an air pump, or may be an oxygen source. The intake 202 may be used to provide a primary respiratory gas, such as oxygen or air.
Wherein the control unit 208, i.e. a solenoid valve or a three-way solenoid valve, connected to the gas inlet 202 can control the closing of the branch pipe 207. Thus, the patient may choose to turn off the primary respiratory gas supply during the expiratory discharge.
Wherein the operation (on/off) of the control unit 208 can be controlled by the central controller 4.
When the air intake 202 uses an air fan or an air pump which is not easy to stop quickly, the control unit 208 may selectively use a three-way solenoid valve, for example, to communicate the branch pipe 207 with the external environment, so as to discharge the air in the branch pipe 207 to the external environment.
In an alternative example of the present invention, as shown in fig. 1, the gas inlet 202, the flow controller 203, and the sensor assembly 206 are electrically connected to the central controller 4 through wires, respectively.
The air intake unit 202 is an air fan, an air pump or an oxygen source, which is connected to the air supply pipe 205 through the branch pipe 207, and can input main respiratory gas such as oxygen or air into the air supply pipe 205 through the branch pipe 207, and in this process, the central controller 4 can control the control unit 208 and the flow controller 203 respectively according to the specific required gas component ratio, so as to control the main respiratory gas amount provided by the air intake unit 202 and the therapeutic gas amount provided by the air supply unit 201 such as nitric oxide gas, so as to generate the set therapeutic gas concentration.
In an alternative example of the present invention, as shown in fig. 1, a sensor assembly 206 is disposed on the intake pipe 205, wherein the sensor assembly 206 includes a nitric oxide concentration sensor, a nitrogen dioxide concentration sensor, and a second pressure sensor.
That is, in the embodiment of the present invention, sensors such as a nitric oxide concentration sensor, a nitrogen dioxide concentration sensor, and a second pressure sensor are provided on the intake pipe (i.e., the intake pipe 205); wherein the nitric oxide concentration sensor is used for detecting the gas concentration of nitric oxide in the inhaled gas, and the data can be transmitted to the central controller 4. When the gas concentration data of the nitric oxide deviates from the set gas concentration value, the central controller 4 may control and adjust the parameters of the gas inlet 202 and the flow controller 203, so as to make the concentration of the nitric oxide gas in the gas inlet 205 meet the requirement.
And when the concentration of the nitric oxide in the air inlet pipe 205 seriously exceeds a standard value or other faults of equipment occur, the air supply unit 201 can be closed to close the nitric oxide source.
The second pressure sensor provided in the intake pipe 205 can be used to detect the pressure in the pipeline, which helps to keep the pressure in the intake pipe 205 within a comfortable suction pressure range, and the adjustment of the pressure is performed by the central controller 4 controlling the intake source.
In an alternative example of the present invention, as shown in fig. 1, an on-off control valve 209 is further disposed on the air inlet pipe 205, and the on-off control valve 209 is electrically connected to the central controller 4 through a conducting wire; also, the on-off control valve 209 may be disposed, for example, near the inlet of the exhaler 1.
The switch control valve 209 is arranged on the air inlet pipe 205, and the air inlet pipe 205 can be selectively closed in the process of exhaling the air by the patient, so that the treatment air can be saved, the expiratory pressure can be removed, and the patient can exhale without resistance.
In an alternative example of the present invention, as shown in fig. 1, a valve 305 and/or a three-way valve 306 are further disposed on the exhaust pipe 301; the three-way valve 306 is, for example, a three-way electromagnetic valve, and the three-way valve 306 is electrically connected to the central controller 4 through a wire; the valve 305 is, for example, a solenoid valve, and the solenoid valve is electrically connected to the central controller 4 through a wire. That is, the central controller 4 can control the closing and the conduction of the exhaust pipe 301.
The exhaust fan 302 is, for example, an exhaust fan or an exhaust pump.
The three-way valve 306 and/or the valve 305 provided on the exhaust tube 301 also allow the patient to selectively close the exhaust path (i.e., the exhaust tube 301) during inhalation.
The exhaust pipe 301 is provided with a three-way valve 306, so that the exhaust pipe 301 can be communicated with the external environment, and an exhaust fan or an exhaust pump (i.e., the exhauster 302) can continuously work.
A first pressure sensor 304 is disposed on the exhaust pipe 301, and the first pressure sensor 304 is configured to perform pressure protection and adjustment on the exhaust pipe 301 so as to maintain a pressure value in the exhaust pipe 301 within a range suitable for breathing.
Also, the first pressure sensor 304 may detect the breathing state of the patient, and determine whether the patient is currently in an expiratory state or an inspiratory state according to the pressure change in the exhaust pipe 301, for controlling the switching of the operation of the therapeutic gas supply device 2 and the expiratory gas discharge device 3 under the central controller 4.
In an alternative example of the utility model, a temperature sensor may be provided at the air inlet of the respirator 1.
For example, a thermistor temperature sensor (which is one type of temperature sensor) can be used for breath detection, and the breath state of the patient can be detected by detecting a temperature change at the air inlet of the ventilator 1.
It should be noted that, for example, the aforementioned thermistor temperature sensor can detect the breathing temperature to determine the breathing condition, for example, the temperature in the exhalation state is higher, and the temperature in the inhalation state is lower.
Of course, it is also possible to use a thoracic impedance method (measuring thoracic impedance, which varies with breathing), an inductance variation method, and detecting fluctuation of the abdomen of the patient, etc. to detect the breathing state (i.e. the breathing state or the exhalation state) of the patient, and then connect to the central controller 4, and calculate breathing and predict the variation trend by using an algorithm model built in the central controller 4, and control and switch the operation of the therapeutic gas supply device 2 and the exhaled gas discharge device 3.
The inhalation therapy device provided by the embodiment of the utility model is combined with the figure 1, and when in work:
the central controller 4 opens the inlet tube 205 when the patient is in an inspiratory state, and controls the supply of the primary respiratory gas (e.g., oxygen or air) and the therapeutic gas (e.g., nitric oxide gas) at the set flow rate and gas concentration.
The central controller 4 closes the air inlet pipe 205 when the patient is in an expiratory state, and if the air inlet machine 202 cannot stop rapidly, a three-way valve is selected to communicate the air inlet pipe 205 with the external environment and close a channel between the air inlet pipe and the respirator 1; meanwhile, when the patient is in an expiratory state, the exhaust pipe 301 needs to be opened, and the exhaust speed is controlled according to the set flow rate and pressure. When the patient is again in the inspiration state, the exhaust pipe 301 is selected to be closed or the exhaust flow is reduced, if the exhaust fan 302 cannot be stopped quickly, the exhaust pipe 302 is selected to be communicated with the external environment by a three-way valve, and at the moment, the passage between the exhaust pipe 302 and the respirator 1 is closed.
In the inhalation therapy apparatus according to the embodiment of the present invention, under the control of the central controller 4, the air inlet pipe 205 may be selectively opened, and the air outlet pipe 301 may be in a semi-closed state. That is, the patient may be allowed to have the exhaust tubing 301 partially open, i.e., in a low flow state, while in the inspiratory state. Likewise, the patient may allow the inlet tube 205 to be partially open, i.e., in a low flow state, during an expiratory condition.
The inhalation therapy device provided by the embodiment of the utility model works according to the set breathing rate, breathing ratio and tidal volume under the control of the central controller 4. The inhalation therapy device may also operate in accordance with a detected spontaneous breathing rhythm of the patient. For example, when the patient inhales, the intake tube 205 may be controlled to open; when the patient exhales, the exhaust tube 301 can be controlled to be opened.
In an alternative example of the utility model, the inhalation therapy device further comprises an alarm device, which is connected to the central controller 4. Therefore, the inhalation therapy equipment also has the functions of pressure, concentration, expiration time, inspiration time and respiration rate safety alarm, and can adjust working parameters in real time.
The embodiment of the utility model is also designed, when the spontaneous respiration of the patient cannot be detected, the automatic respiration rhythm can be automatically converted, and the breathing channels can be selected to be opened completely to ensure the smooth respiration.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (10)
1. An inhalation therapy device, comprising:
the respirator (1) is provided with an air inlet and an air outlet respectively;
a therapeutic gas supply device (2), the therapeutic gas supply device (2) comprising a gas supply unit (201) and a gas inlet machine (202); the air supply unit (201) is connected with a flow controller (203) through an air supply pipe (204), the flow controller (203) is connected with an air inlet of the respirator (1) through an air inlet pipe (205), and a sensor assembly (206) is arranged on the air inlet pipe (205); the air inlet machine (202) is connected with the air inlet pipe (205) through a branch pipe (207), and a control unit (208) is arranged on the branch pipe (207);
the exhaled gas discharging device (3) comprises an exhaust pipe (301), and an exhaust machine (302), a buffer (303) and a first pressure sensor (304) which are arranged on the exhaust pipe (301), wherein the air inlet of the exhaust pipe (301) is connected with the air outlet of the respirator (1); and the number of the first and second groups,
a central controller (4), wherein the central controller (4) is electrically connected with the therapeutic gas supply device (2) and the exhaled gas discharge device (3) respectively.
2. Inhalation therapy device according to claim 1, characterized in that the respirator (1) is a breathing mask.
3. The inhalation therapy device according to claim 1, wherein the gas supply unit (201) is a nitric oxide generator or a compressed gas cylinder with nitric oxide stored therein;
the air outlet of the air supply unit (201) is connected with the air inlet of the air supply pipe (204).
4. The inhalation therapy apparatus according to claim 1, wherein the flow controller (203) includes a gas concentration dilution chamber to dilute the concentration of the therapy gas output by the gas supply unit (201) to a set gas concentration.
5. The inhalation therapy device according to claim 1, wherein the control unit (208) is a solenoid valve or a three-way solenoid valve, and the control unit (208) is electrically connected to the central controller (4) by a wire.
6. The inhalation therapy device according to claim 1, wherein the gas inlet (202), the flow controller (203), and the sensor assembly (206) are electrically connected to the central controller (4) by wires, respectively.
7. The inhalation therapy device according to claim 1, wherein the sensor assembly (206) comprises a nitric oxide concentration sensor, a nitrogen dioxide concentration sensor, and a second pressure sensor.
8. The inhalation therapy device according to claim 1, wherein an on-off control valve (209) is further disposed on the air inlet tube (205), and the on-off control valve (209) is electrically connected with the central controller (4) through a wire;
and the on-off control valve (209) is arranged close to the air outlet of the air inlet pipe (205).
9. The inhalation therapy device according to claim 1, wherein the exhaust tube (301) is further provided with a valve (305) and/or a three-way valve (306);
the valve (305) is an electromagnetic valve, and the electromagnetic valve is electrically connected with the central controller (4) through a lead;
the three-way valve (306) is a three-way electromagnetic valve, and the three-way valve (306) is electrically connected with the central controller (4) through a lead.
10. Inhalation therapy device according to claim 1, characterized in that a temperature sensor is provided at the air inlet of the respirator (1).
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| CN202121055491.1U CN216222554U (en) | 2021-05-17 | 2021-05-17 | Inhalation therapy device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115212396A (en) * | 2022-04-27 | 2022-10-21 | 安徽省立医院(中国科学技术大学附属第一医院) | Gas therapeutic apparatus and emergency treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115212396A (en) * | 2022-04-27 | 2022-10-21 | 安徽省立医院(中国科学技术大学附属第一医院) | Gas therapeutic apparatus and emergency treatment method |
| CN115212396B (en) * | 2022-04-27 | 2024-04-09 | 安徽省立医院(中国科学技术大学附属第一医院) | Gas therapeutic apparatus and emergency treatment method |
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