WO2020133274A1

WO2020133274A1 - Ventilation device and control method therefor, and computer storage medium

Info

Publication number: WO2020133274A1
Application number: PCT/CN2018/125064
Authority: WO
Inventors: 伍乐平; 余飞; 陈俊
Original assignee: 深圳迈瑞生物医疗电子股份有限公司
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-07-02
Also published as: CN112955202A

Abstract

A ventilation device (200) and a control method for a ventilation device (200), and a computer storage medium. The ventilation device (200) comprises a driving module (201), a respiratory circuit (202) and a ventilation control module (203); the ventilation control module (203) controls the driving module (201) to provide a ventilation support to a patient by means of the respiratory circuit (202); the respiratory circuit (202) comprises an inspiratory branch (2021) and an expiratory branch (2022); the inspiratory branch (2021) is provided with an inspiratory valve, and the expiratory branch (2022) is provided with an expiratory valve; and the ventilation control module (203) controls, when in a dual-tube oxygen therapy mode, the expiratory valve to close and the inspiratory valve to open, so as to output an oxygen-enriched gas by means of the inspiratory branch (2021).

Description

Ventilation equipment, control method thereof, and computer storage medium

Technical field

This application relates to the field of medical devices, but not limited to a ventilating device, its control method, and computer storage medium.

Background technique

As a sequential treatment, oxygen therapy is a widely used medical method. The so-called sequential treatment is a treatment method for patients from non-invasive ventilation to non-invasive ventilation or oxygen therapy after extubation. The current invasive ventilation uses double-tube ventilation, so when the patient enters oxygen therapy after offline, the double tube needs to be replaced with a single tube, which not only increases the operation of medical staff, but also increases the patient's infection risk and replaces the tube Road costs.

Summary of the invention

In view of this, the embodiments of the present application are expected to provide a ventilation device, a control method thereof, and a computer storage medium, which solves the problem of using the ventilation device with a double-tube exhalation circuit to perform oxygen therapy on an offline patient in the prior art solution It can realize double-tube oxygen therapy without replacing the pipeline, which can reduce the operation of medical staff, and reduce the infection risk of patients and the cost of replacing the pipeline.

The technical solutions of the embodiments of the present application are implemented as follows:

An embodiment of the present application provides a ventilation device including: a driving module, a breathing circuit, and a ventilation control module; wherein, the ventilation control module controls the driving module to provide ventilation support to the patient through the breathing circuit; The breathing circuit includes an inhalation branch and an exhalation branch; the inhalation branch is provided with an inhalation valve, and the exhalation branch is provided with an exhalation valve; the ventilation control module is in a double-tube oxygen therapy mode At this time, the exhalation valve is controlled to close and the inhalation valve is opened to output oxygen-enriched gas through the inhalation branch.

The breathing circuit further includes at least one of a pressure measurement module provided in the inspiratory branch and/or an exhalation branch, and a flow rate measurement module provided in the exhalation branch, the pressure measurement module is used for Detect the pressure in the inspiratory branch and/or the expiratory branch; the flow rate measurement module is used to detect the gas flow rate in the expiratory branch.

In the above solution, the pressure measurement module is provided at least on the expiratory branch. During oxygen therapy, the ventilation control module detects that the third pressure of the expiratory branch is greater than the first pressure threshold in the pressure measurement module At this time, the exhalation valve is opened to keep the pressure of the exhalation branch less than or equal to the first pressure threshold.

In the above solution, the ventilation device further includes an alarm module and an output module, wherein:

The alarm module is configured to send an alarm message to the output module when the third pressure of the exhalation branch detected by the pressure measurement module is greater than the second pressure threshold;

The output module is configured to output the alarm information after receiving the alarm information sent by the alarm module.

In the above solution, when the ventilation control module is in the single-tube oxygen therapy mode, the oxygen-rich gas is output to the patient through the inhalation branch.

In the above solution, the ventilation device further includes a processing module;

When the exhalation valve is opened and closed, the processing module according to the pressure change of the exhalation branch detected by the pressure measurement module and/or the flow rate change of the exhalation branch detected by the flow rate measurement module To determine whether the current oxygen therapy mode is double-tube oxygen therapy mode or single-tube oxygen therapy mode.

In the above solution, the first pressure of the exhalation branch detected by the pressure measurement module, and acquiring the second pressure of the exhalation branch detected by the pressure measurement module when the exhalation valve is closed;

If the first change between the first pressure and the second pressure satisfies the first preset condition, the processor determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition, the processor determines that the oxygen therapy mode currently in the ventilation device is the single-tube oxygen therapy mode.

In the above solution, the processing module obtains the first flow rate of the exhalation branch detected by the flow rate measurement module when the exhalation valve is opened and the flow rate measurement module detects when the exhalation valve is closed The second flow rate of the expiratory branch of

If the second variation between the first flow rate and the second flow rate satisfies the second preset condition, the processor determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the second change amount does not satisfy the second preset condition, the processor determines that the oxygen therapy mode in which the ventilation device is currently in is the single-tube oxygen therapy mode.

In the above solution, if the first change amount satisfies the first preset condition, or the second change amount satisfies the second preset condition, the processor determines the oxygen therapy in which the ventilation device is currently located The mode is double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition, and the second change amount does not satisfy the second preset condition, the processor determines that the oxygen therapy mode currently in the ventilation device is single Tube oxygen therapy mode.

In the above solution, the output module is used to output and display the oxygen therapy mode in which the ventilation device is currently in.

An embodiment of the present application further provides a ventilation device control method, which is applied to a ventilation device. The ventilation device includes at least a receiving module, a driving module, a breathing circuit, and a ventilation control module. The method is characterized in that the method includes:

The receiving module receives an instruction to start the oxygen therapy mode;

When the received command to start the oxygen therapy mode is to start the two-tube oxygen therapy mode, the ventilation control module controls the exhalation valve of the ventilation device to close, and controls the opening of the ventilation valve of the ventilation device to control the drive The module outputs oxygen-enriched gas through the inspiratory branch in the breathing circuit.

In the above solution, the ventilation device further includes a processing module, characterized in that, after the receiving module receives an instruction to start the oxygen therapy mode, the method further includes:

The ventilation control module controls the exhalation valve to open, and the processing module obtains the first oxygen therapy parameter of the ventilation device;

The ventilation control module controls the exhalation valve of the ventilation device to close, and the processing module obtains the second oxygen therapy parameter of the ventilation device;

The processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter.

In the above solution, the first oxygen therapy parameter includes the first pressure of the inhalation or exhalation branch, and the second oxygen therapy parameter includes the second pressure of the inhalation or exhalation branch, corresponding to The processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter, including:

If the first change between the first pressure and the second pressure meets the first preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a single-tube oxygen therapy mode.

In the above solution, the first oxygen therapy parameter includes the first flow rate of the expiratory branch, and the second oxygen therapy parameter includes the second flow rate of the expiratory branch. Correspondingly, the processing module The first oxygen therapy parameter and the second oxygen therapy parameter determine the current oxygen therapy mode of the ventilation device, including:

If the second variation between the first flow rate and the second flow rate satisfies the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the second change amount does not satisfy the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a single-tube oxygen therapy mode.

In the above solution, the first oxygen therapy parameter includes the first pressure of the inspiratory branch or exhalation branch and the first flow rate of the exhalation branch, and the second oxygen therapy parameter includes the inspiratory branch or exhalation The second pressure of the air branch and the second flow rate of the expiratory branch, correspondingly, the processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter ,include:

If the first change between the first pressure and the second pressure satisfies the first preset condition, or the second change between the first flow rate and the second flow rate satisfies the second preset Conditions, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition and the second change amount does not satisfy the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a single-tube oxygen therapy mode .

In the above solution, after the oxygen therapy mode in which the ventilation device is currently in the double-tube oxygen therapy mode, the ventilation control module controls the exhalation valve of the ventilation device to close, the method further includes:

The processing module obtains the current third pressure of the ventilation device;

If the third pressure is greater than the first pressure threshold, the ventilation control module controls the exhalation valve to open to maintain the pressure of the exhalation branch of the ventilation device less than or equal to the first pressure threshold.

In the above solution, the ventilation device further includes an alarm module and an output module, characterized in that the method further includes:

When the third pressure of the exhalation branch detected by the pressure measurement module is greater than the second pressure threshold, the alarm module sends an alarm message to the output module;

After receiving the alarm information sent by the alarm module, the output module outputs the alarm information.

In the above solution, it is characterized in that the method further includes:

The output module outputs the oxygen therapy mode in which the ventilation device is currently located.

In the above solution, the method further includes:

When the received instruction to start the oxygen therapy mode is to start the single-tube oxygen therapy mode, the ventilation control module outputs oxygen-enriched gas to the patient through the inhalation branch.

An embodiment of the present application provides a computer storage medium in which a control program of a ventilating device is stored. When the control program of the ventilating device is executed by a processor, the steps of the control method of the ventilating device described above are implemented.

Embodiments of the present application provide a ventilation device, a control method thereof, and a computer storage medium, wherein the ventilation device includes: a driving module, a breathing circuit, and a ventilation control module; the ventilation control module controls the driving module through the breathing circuit Provide ventilation support to the patient; the breathing circuit includes an inhalation branch and an exhalation branch; the inhalation branch is provided with an inhalation valve, the exhalation branch is provided with an exhalation valve; and the ventilation control module In the dual-tube oxygen therapy mode, the exhalation valve is closed and the inhalation valve is opened, and oxygen-enriched gas is output through the inspiratory branch; in this way, the ventilation equipment with a dual-tube exhalation circuit is used to When the patient is performing oxygen therapy, the double-tube oxygen therapy can be realized without replacing the pipeline, thereby reducing the operation of medical staff, and reducing the infection risk of the patient and the cost of replacing the pipeline.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of the oxygen therapy method of single-tube ventilation in the related art;

2 is a schematic diagram of the composition structure of the ventilation device according to the embodiment of the present application;

3 is a schematic diagram of another composition structure of the implementation of the ventilation device of the application;

4 is a schematic diagram of an implementation process of the control method of the ventilation device according to the embodiment of the present application;

5 is a schematic diagram of another implementation process of the control method of the ventilation device according to the embodiment of the present application;

6 is a schematic flowchart of yet another implementation of the control method of the ventilation device according to the embodiment of the present application;

7 is a schematic flowchart of an implementation process of a single-dual-tube oxygen therapy mode recognition process according to an embodiment of the present application.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the specific technical solutions of the invention will be described in further detail in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate this application, but are not used to limit the scope of this application.

In order to better understand the embodiments of the present application, firstly, related art oxygenation methods of single-tube ventilation and oxygenation methods of double-tube ventilation in the related art will be described.

FIG. 1 is a schematic diagram of an oxygen therapy method through single tube ventilation. As shown in FIG. 1, the ventilator 101 has an inspiratory circuit interface 102 and an expiratory circuit interface 103. In the oxygen therapy mode of single tube ventilation, only A suction pipe, that is, a suction branch 104 is connected to the suction pipe interface. When the ventilator starts the oxygen therapy function, oxygen-rich gas is output to the patient through the inhalation branch 104.

This embodiment provides a ventilation device. FIG. 2 is a schematic structural diagram of a ventilation device according to an embodiment of the present application. As shown in FIG. 2, the ventilation device 200 includes: a driving module 201, a breathing circuit 202, and a ventilation control module 203, where:

The ventilation control module 203 controls the driving module 201 to provide ventilation support to the patient through the breathing circuit 202. Here, the ventilation control module 203 can control the driving module 201 to provide oxygen-enriched gas to the patient through the breathing circuit 202.

The breathing circuit 202 includes an inhalation branch 2021 and an exhalation branch 2022; and the inhalation branch 2021 is provided with an inhalation valve, and the exhalation branch 2022 is provided with an exhalation valve.

In the dual-tube oxygen therapy mode, the ventilation control module 203 controls the exhalation valve to close, and controls the inhalation valve to open, and outputs oxygen-enriched gas through the inhalation branch 2021.

In other embodiments, when the ventilation control module 203 is in the single-tube oxygen therapy mode, oxygen-rich gas is output to the patient through the inhalation branch 2021, that is, in the single-tube oxygen therapy mode, there is no need to control the exhalation valve to close , Directly output oxygen-enriched gas to the patient through the inhalation branch 2021.

It should be noted that in this embodiment, the dual-tube oxygen therapy mode refers to an inspiratory tube connected to the 2021 interface of the inhalation branch of the ventilation device, and an exhalation tube connected to the 2022 interface of the exhalation branch; single-tube oxygen The treatment mode refers to that an inspiratory tube is connected to the 2021 interface of the inhalation branch of the ventilation device, and an exhalation tube is not connected to the 2022 interface of the exhalation branch.

The ventilation device 200 provided in this embodiment includes a driving module 201, a breathing circuit 202, and a ventilation control module 203, wherein the ventilation control module 203 controls the driving module 201 to provide ventilation support to the patient through the breathing circuit 202; the breathing circuit 202 includes an inspiratory branch 2021 and the exhalation branch 2022; the inhalation branch 2021 is provided with an inhalation valve, and the exhalation branch 2022 is provided with an exhalation valve; the ventilation control module 203 controls the exhalation valve to close when in the double-tube oxygen therapy mode, and Control the inhalation valve to open, and then output oxygen-enriched gas through the inhalation branch 2021. In this way, double-tube oxygen therapy can be achieved without replacing the pipeline, which can reduce the operation of medical personnel and reduce the risk of infection and The cost of replacing the pipeline.

Based on the foregoing embodiments, an embodiment of the present application further provides a ventilation device. FIG. 3 is another schematic structural diagram of the implementation of the ventilation device of the present application. As shown in FIG. 3, the ventilation device 300 includes at least a driving module 301 and a breathing circuit. 302, a ventilation control module 303 and a processing module 304, wherein: the ventilation control module 303 controls the driving module 301 to provide ventilation support to the patient through the breathing circuit 302;

The breathing circuit 302 includes an inhalation branch 3021 and an exhalation branch 3022, and the inhalation branch 3021 is provided with an inhalation valve, and the exhalation branch 3022 is provided with an exhalation valve.

In this embodiment, the breathing circuit 302 may further include a pressure measurement module 3023 for detecting airway pressure. In a specific implementation, the pressure measurement module 3023 may be a pressure sensor, and the pressure measurement module 3023 is disposed on the inhalation branch 3021 or Expiratory branch 3022. The breathing circuit 302 may further include a flow rate measurement module 3024 disposed in the expiratory branch 3022. In this embodiment, the expiratory branch 3022 includes at least one of a pressure measurement module 3023 and a flow measurement module 3024.

In FIG. 3, the pressure measurement module 3023 is provided in the inhalation branch 3021, and the flow rate measurement module 3024 is provided in the exhalation branch 3022. Of course, one may be provided in each of the inhalation branch 3021 and the exhalation branch 3022. The pressure measurement module 3023 and the expiratory branch 3022 are further provided with a flow rate measurement module 3024, so that the flow rate of gas passing through the expiratory branch 3022 can be measured.

The processing module 304, when the exhalation valve is opened and closed, according to the pressure change of the patient's inspiratory branch 3021 or the expiratory branch 3022 detected by the pressure measurement module 3023 and/or the expiratory branch detected by the flow rate measurement module 3024 The flow rate of the path 3022 changes to determine whether the oxygen therapy mode of the ventilation device is currently a double-tube oxygen therapy mode or a single-tube oxygen therapy mode.

When the oxygen therapy mode in which the ventilation device is currently in the double-tube oxygen therapy mode, the exhalation valve is controlled to be closed, the inhalation valve is opened, and oxygen-enriched gas is output through the inhalation branch 3021.

When the oxygen therapy mode currently in the ventilation device is the single-tube oxygen therapy mode, the oxygen-rich gas is output through the inhalation branch 3021.

During the double-tube oxygen therapy, the ventilation control module 303 opens the exhalation valve when the third pressure of the exhalation branch 3022 detected by the pressure measurement module 3023 is greater than the first pressure threshold, and maintains the The pressure is less than or equal to the first pressure threshold.

Here, after opening the exhalation valve, after a certain period of time, the ventilation control module 303 closes the exhalation valve when the fourth pressure of the exhalation branch 3022 detected by the pressure measurement module 3023 is less than the third pressure threshold, and continues to pass The gas branch 3021 outputs oxygen-enriched gas to the patient.

In this embodiment, the third pressure threshold cannot be greater than the first pressure threshold, that is, the third pressure threshold may be less than or equal to the first pressure threshold.

The ventilation device also includes an alarm module and an output module. The output module may include a voice player, a display screen, etc. The output module may be used to output an oxygen therapy mode that displays the current location of the ventilation device. During the oxygen therapy process, the alarm module sends an alarm message to the output module when the third pressure of the exhalation branch detected by the pressure measurement module 3023 is greater than the second pressure threshold. The output module can alert the user after receiving the alarm information sent by the alarm module. The second pressure threshold is not less than the first pressure threshold, that is, the second pressure threshold is greater than or equal to the first pressure threshold.

In this embodiment, the oxygen therapy mode and the alarm information currently in the ventilation device may be output in the form of audio or in the form of an image. That is to say, the oxygen therapy mode and the alarm information of the ventilation device currently in the voice broadcast can be broadcast, or the oxygen therapy mode and the alarm information of the ventilation device in the current display can be displayed on the display screen.

In this embodiment, when the processing module 304 determines whether the oxygen therapy mode of the ventilation device is currently in the double-tube oxygen therapy mode or the single-tube oxygen therapy mode, the processing module 304 may only use the inspiratory branch 3021 or the expiratory branch 3022. The pressure change can be determined only by the flow rate change of the expiratory branch 3022, or can be determined by the pressure change and the flow rate change together.

When the oxygen therapy mode is determined only by the pressure change of the inhalation branch 3021 or the exhalation branch 3022, the processing module 304 first obtains the inhalation branch 3021 or exhalation detected by the pressure measurement module 3023 when the exhalation valve is opened The first pressure of the branch 3022; when the exhalation valve is closed, the second pressure of the inhalation branch 3021 or the exhalation branch 3022 detected by the pressure measurement module 3023 is obtained; if the pressure is between the first pressure and the second pressure The first change amount satisfies the first preset condition, and the processor 304 determines that the oxygen therapy mode in which the ventilation device is currently in the double-tube oxygen therapy mode; if the first change amount does not satisfy the first preset condition, the processor 304 determines the ventilation device The current oxygen therapy mode is single tube oxygen therapy mode.

In practical applications, the first change may refer to the first difference between the second pressure and the first pressure, and the first preset condition may be that the first difference is greater than the preset first difference threshold; the first change It may also be a first change rate from the first pressure to the second pressure, and the first preset condition may be that the first change rate is greater than a preset first change rate threshold.

When the oxygen therapy mode is determined only by the flow rate change, the processing module 304 acquires the first flow rate of the exhalation branch 3022 detected by the flow rate measurement module 3024 when the exhalation valve is opened, and acquires the flow rate measurement module when the exhalation valve is closed The second flow rate of the expiratory branch 3022 detected by 3024; if the second change between the first flow rate and the second flow rate meets the second preset condition, the processor 304 determines that the oxygen therapy mode of the ventilation device is currently Dual-tube oxygen therapy mode; if the second variation does not satisfy the second preset condition, the processor 304 determines that the oxygen therapy mode in which the ventilation device is currently located is the single-tube oxygen therapy mode.

In practical applications, the second change amount may refer to a second difference between the first flow rate and the second flow rate, and the second preset condition may be that the second difference value is greater than a preset second difference threshold; the second change amount It may also be a second change rate from the first flow rate to the second flow rate, and the second preset condition may be that the second change rate is greater than the second change rate threshold.

When determining the oxygen therapy mode through the pressure change and the flow rate change, firstly obtain the first pressure and flow rate measurement module 3024 of the inhalation branch 3021 or the exhalation branch 3022 detected by the pressure measurement module 3023 when the exhalation valve is opened The first detected flow rate of the exhalation branch 3022; when the exhalation valve is closed, the second pressure and flow rate measurement module 3024 of the inhalation branch 3021 or the exhalation branch 3022 detected by the pressure measurement module 3023 is detected The second flow rate of the expiratory branch 3022; if the first change between the first pressure and the second pressure satisfies the first preset condition, or the second change between the first flow rate and the second flow rate satisfies the Two preset conditions, the processor 304 determines that the oxygen therapy mode in which the ventilation device is currently in is a two-tube oxygen therapy mode; if the first change between the first pressure and the second pressure does not satisfy the first preset condition, and the first The second change between the flow rate and the second flow rate does not satisfy the second preset condition, and the processor 304 determines that the oxygen therapy mode in which the ventilation device is currently in is the single-tube oxygen therapy mode.

It should be noted that the branches corresponding to the first pressure and the second pressure are the same. For example, if the first pressure is the pressure of the suction branch 3021 detected by the pressure measurement module 3023, then the second pressure is detected by the measurement module If the first pressure is the pressure of the exhalation branch 3022 detected by the pressure measurement module 3023, then the second pressure is the pressure of the exhalation branch 3022 detected by the measurement module.

The ventilation device 300 provided in this embodiment includes at least a driving module 301, a breathing circuit 302, a ventilation control module 303, and a processing module 304; wherein, the ventilation control module 301 controls the driving module 302 to provide ventilation support to the patient through the breathing circuit 302; the breathing circuit 302 includes an inhalation branch 3021 and an exhalation branch 3022; the inhalation branch 3021 is provided with an inhalation valve, and the exhalation branch 3022 is provided with an exhalation valve; the breathing circuit 302 also includes pressure measurement for detecting airway pressure The module 3023 and the flow rate measurement module 3024 provided in the expiratory branch; the processing module 304 according to the pressure change detected by the pressure measurement module 3023 when the exhalation valve is opened and closed, and/or the flow rate detected by the flow measurement module 3024 Change, determine whether the oxygen therapy mode of the ventilation device is the double tube oxygen therapy mode or the single tube oxygen therapy mode; when the oxygen therapy mode of the ventilation device is the dual tube oxygen therapy mode, control the exhalation valve to close and inhale The gas valve is opened, and oxygen-enriched gas is output through the inhalation branch 3021; when the oxygen therapy mode of the ventilation device is in single-tube oxygen therapy mode, oxygen-enriched gas is output through the inhalation branch 3021; in this way, not only can be automatically determined The current oxygen therapy mode of the ventilation device can also realize double-tube oxygen therapy without replacing the pipeline, which can reduce the operation of medical staff, and reduce the risk of infection of patients and the cost of replacing the pipeline. In addition, the ventilation control module 303 opens the exhalation valve when the pressure of the exhalation branch 3021 detected by the pressure measurement module 3023 is greater than the first pressure threshold, and keeps the patient's airway pressure less than or equal to the first pressure threshold, which can prevent The blockage of the patient's end leads to excessive pressure, which can cause harm to the patient, thereby improving the safety of the ventilation device.

An embodiment of the present application provides a control method of a ventilation device, which is applied to a ventilation device. The ventilation device includes at least a receiving module, a driving module, a breathing circuit, and a ventilation control module. FIG. 4 is a schematic flowchart of an implementation of the control method of the ventilation device according to the embodiment of the present application. As shown in FIG. 4, the method includes the following steps:

Step S401, the receiving module receives an instruction to start the oxygen therapy mode.

Here, in this embodiment, the ventilation device may be a ventilator. The exhalation circuit in the ventilation device includes an exhalation branch and an inhalation branch, wherein the exhalation branch includes at least an exhalation valve, and the inhalation branch includes at least an inhalation valve.

When step S401 is implemented, an instruction to start the oxygen therapy mode may be triggered by pressing or touching a button to start the oxygen therapy mode, or may be triggered by a preset voice or gesture. Therefore, the receiving module may be a button, a touch screen, a voice receiving device, an image receiving device, and other devices.

Step S402, when the received command to open the oxygen therapy mode is to open the two-tube oxygen therapy mode, the ventilation control module controls the exhalation valve to close and the inhalation valve to open to control the drive module to output oxygen-enriched gas through the inhalation branch.

Here, in other embodiments, after receiving the instruction to start the oxygen therapy mode, the oxygen therapy mode of the ventilation device currently needs to be determined according to the oxygen therapy parameters of the ventilation device, and the current location of the ventilation device is a double tube When in oxygen therapy mode, confirm that the received command to turn on the oxygen therapy mode is the command to turn on the two-tube oxygen therapy mode; when the ventilation device is currently in the single-tube oxygen therapy mode, determine that the received command to turn on the oxygen therapy mode is on Instructions for single tube oxygen therapy mode.

When the received command to open the oxygen therapy mode is to open the two-tube oxygen therapy mode, the valve sealing pressure of the exhalation valve can be set to a preset value through the ventilation control module to control the closing of the exhalation valve; the ventilation control module will The sealing pressure of the suction valve is set to zero to control the opening of the suction valve and output oxygen-enriched gas through the suction branch.

In the control method of the ventilation device provided in this embodiment, first, the receiving module receives an instruction to start the oxygen therapy mode. When the received instruction to start the oxygen therapy mode is to start the dual-tube oxygen therapy mode, the ventilation control module controls the exhalation of the ventilation device The valve is closed, and the inhalation valve of the ventilation device is opened to output oxygen-enriched gas through the inhalation branch. In this way, when the ventilation device receives the instruction to open the dual-tube oxygen therapy mode, the exhalation valve is controlled to close, and the tube The replacement of the circuit can realize double-tube oxygen therapy, which can reduce the operation of medical staff, and reduce the risk of infection of patients and the cost of replacing the pipeline.

Based on the foregoing embodiments, the embodiments of the present application further provide a ventilation device control method, which is applied to the ventilation devices provided in other embodiments. The ventilation device at least includes a receiving module, a driving module, a breathing circuit, a processing module, and a ventilation control module . FIG. 5 is a schematic diagram of another implementation process of the control method of the ventilation device according to the embodiment of the present application. As shown in FIG. 5, the method includes the following steps:

Step S501, the receiving module receives an instruction to start the oxygen therapy mode.

Step S502: Based on the instruction to open the oxygen therapy mode, the ventilation control module controls the exhalation valve of the ventilation device to open, and the processing module obtains the first oxygen therapy parameter of the ventilation device.

Here, in practical applications, the valve sealing pressure of the exhalation valve can be set to zero through the ventilation control module to control the opening of the exhalation valve. The first oxygen therapy parameter may include the first pressure of the inspiratory branch or the expiratory branch, and may also include the first flow rate of the expiratory branch.

Step S503, the ventilation control module controls the exhalation valve of the ventilation device to close, and the processing module obtains the second oxygen therapy parameter of the ventilation device.

Here, in practical applications, the ventilation control module may set the valve sealing pressure of the exhalation valve to a preset value to achieve the closing of the exhalation valve. The second oxygen therapy parameter may include the second pressure of the inspiratory branch or the expiratory branch, and may also include the second flow rate of the expiratory branch.

Step S504, the processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter.

Here, step S504 can be implemented in at least the following three implementation manners:

The first implementation manner: the processing module determines the current oxygen therapy mode of the ventilation device according to the pressure change of the inspiratory branch or the expiratory branch, wherein, if the first change between the first pressure and the second pressure meets In the first preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in the double-tube oxygen therapy mode; if the first change amount does not satisfy the first preset condition, the processing module determines the oxygen therapy mode in which the ventilation device is currently in It is a single tube oxygen therapy mode.

The second implementation manner: the processing module determines the oxygen therapy mode in which the ventilation device is currently located through the change in the flow rate of the expiratory branch, wherein, if the second change between the first flow rate and the second flow rate satisfies the second preset condition , The processing module determines that the oxygen therapy mode of the ventilation device is the double-tube oxygen therapy mode; if the second variation does not satisfy the second preset condition, the processing module determines that the oxygen therapy mode of the ventilation device is the single-tube oxygen therapy mode.

The third implementation manner: the processing module determines the oxygen therapy mode currently in the ventilation device through the pressure change and the flow rate change, wherein, if the first change between the first pressure and the second pressure meets the first preset condition, or The second change between the first flow rate and the second flow rate satisfies the second preset condition, and the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode; if the first change amount does not satisfy the first If the conditions are set and the second change amount does not satisfy the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently located is the single-tube oxygen therapy mode.

In other embodiments, after determining the current oxygen therapy mode, the processing module will also output the oxygen therapy mode of the ventilation device from the output module of the ventilation device, so that the medical staff and patients can timely understand the ventilation device Oxygen therapy mode.

Step S505, the processing module determines whether the ventilation device is in the double-tube oxygen therapy mode.

Here, if the ventilation device is in the double-tube oxygen therapy mode, step S507 is entered; if the ventilation device is in the single-tube oxygen therapy mode, step S506 is entered.

Step S506, the ventilation control module controls the driving module to output oxygen-enriched gas through the inhalation branch.

In step S507, the ventilation control module controls the exhalation valve of the ventilation device to close.

In step S508, the ventilation control module controls the suction valve of the ventilation device to open to control the drive module to output oxygen-enriched gas through the suction branch.

It should be noted that, for the explanation of the same steps or concepts in this embodiment as in other embodiments, reference may be made to the description in other embodiments.

Step S509, the processing module obtains the current third pressure of the expiratory branch in the ventilation device.

Here, the third pressure may be acquired in real time, or may be acquired once every interval for a certain period of time, for example, every five seconds.

In step S510, the processing module determines whether the third pressure is greater than the first pressure threshold.

Here, if the third pressure is greater than the first pressure threshold, it means that the pressure of the exhalation branch of the ventilator is too high, which is likely to cause harm to the patient. At this time, step S512 is entered to release the pressure by opening the exhalation valve; if the third pressure is not If it is greater than the first pressure threshold, it means that the pressure of the exhalation branch in the ventilation device is not likely to cause harm to the patient, and then step S511 is entered.

In step S511, the ventilation control module keeps the exhalation valve closed, and loops to step S509.

In step S512, the ventilation control module controls the exhalation valve to open to maintain the pressure of the ventilation device less than or equal to the first pressure threshold.

Step S513: The processing module obtains the current fourth pressure of the expiratory branch in the ventilation device.

Here, the fourth pressure may be acquired in real time, or may be acquired once every interval for a certain period of time, for example, every five seconds.

In step S514, the processing module determines whether the fourth pressure is less than the third pressure threshold.

Here, if the fourth pressure is less than the third pressure threshold, it means that the current pressure of the exhalation branch of the ventilator is small, and the exhalation valve can be closed again to prevent oxygen-rich gas from leaking out of the exhalation branch. Step S507 is entered; if the fourth pressure is not less than the third pressure threshold, it means that the current pressure of the exhalation branch of the ventilator is still large. At this time, step S515 is entered to keep the exhalation valve open to avoid excessive airway pressure Harm to patients.

In step S515, the ventilation control module keeps the exhalation valve open, and loops to step S513.

In other embodiments, after step S508, the method further includes: if the third pressure is greater than the second pressure threshold, outputting an alarm message to remind the user that the pressure on the exhalation branch of the ventilator is too high, which is very likely to cause harm to the patient, The ventilation equipment needs to be suspended.

In the method for controlling a ventilator provided in this embodiment, first, when an operation instruction to open an oxygen therapy mode is detected, the exhalation valve of the ventilator is controlled to open to obtain the first oxygen therapy parameter of the ventilator; then, the control of the ventilator is controlled. The exhalation valve is closed to obtain the second oxygen therapy parameter of the ventilation device; according to the first oxygen therapy parameter and the second oxygen therapy parameter, it is determined whether the current oxygen therapy mode of the ventilation device is the double tube oxygen therapy mode or the single tube oxygen therapy mode When the ventilation device is in the double-tube oxygen therapy mode, the exhalation valve of the ventilation device is closed; the inhalation valve of the ventilation device is controlled to open to output oxygen-enriched gas through the inspiratory branch. When the ventilation device is in single-tube oxygen therapy, directly Oxygen enrichment is output through the inspiratory branch; in this way, the ventilation device itself can determine the current oxygen therapy mode and perform the air supply operation of the relevant oxygen therapy mode, which can reduce the operation of medical staff and reduce the risk of infection and replacement of patients The cost of the pipeline; and obtain its current third pressure in the dual-tube oxygen therapy mode. When the third pressure is greater than the first pressure threshold, the exhalation valve is opened to relieve the pressure to prevent the patient end from being closed by the exhalation valve The pressure is too high, causing harm to the patient.

An embodiment of the present application further provides a method for controlling a ventilating device. FIG. 6 is a schematic flowchart of another implementation of the method for controlling a ventilating device according to an embodiment of the present application. As shown in FIG. 6, the method includes the following steps:

Step S601, after the oxygen therapy mode is turned on, the ventilator starts to deliver air.

In step S602, the exhalation valve of the ventilation device is controlled to seal the valve according to the set pressure.

Here, the set pressure may be set by default when the ventilation device is shipped from the factory, or may be set manually by the user.

Step S603: When the ventilation device performs oxygen therapy ventilation, the third pressure of the expiratory branch is monitored in real time to determine whether the third pressure of the expiratory branch is greater than the first pressure threshold.

Here, if the third pressure is greater than the first pressure threshold, it means that the pressure in the expiratory branch is too high, which is easy to cause harm to the patient. At this time, step S604 is entered; if the third pressure is less than or equal to the first pressure threshold, and the ventilation device is in In the alarm state, step S606 is entered at this time.

In step S604, the exhalation valve is controlled to open, perform pressure relief and keep the pressure in the exhalation branch not to exceed the first pressure threshold.

Here, in other embodiments, after step S604, the current pressure of the exhalation branch is monitored in real time to determine whether to close the exhalation valve again. In practical applications, the exhalation branch can be determined by Whether the current pressure of the route is less than the third threshold, wherein, when the current pressure of the exhalation branch is less than the third threshold, the exhalation valve can be closed again.

Step S605, the alarm prompts the user that the airway is blocked.

Step S606, clear the alarm state.

Here, the alarm threshold may be equal to the first pressure threshold. In other embodiments, the alarm threshold may be greater than the first pressure threshold. The alarm threshold may be set by default when the ventilator is shipped from the factory or manually set by the user. When the third pressure is lower than the alarm threshold, the alarm is cancelled .

In this embodiment, before step S602 "control the exhalation valve of the ventilator to seal the valve according to the set pressure", the control method of the ventilator also includes the recognition process of the single and double-tube oxygen therapy mode, and FIG. 7 is implemented in this application Example schematic diagram of the realization process of single and double tube oxygen therapy pattern recognition process, as shown in Figure 7, the process includes:

In step S701, the ventilation device starts the oxygen therapy function and starts air supply.

In step S702, the exhalation valve is opened.

In step S703, the current expiratory flow rate Fexp1 and expiratory pressure Pexp1 are measured.

In step S704, the exhalation valve is closed.

In step S705, the current expiratory flow rate Fexp2 and expiratory pressure Pexp2 are measured.

In step S706, it is determined whether Pexp2-Pexp1 is smaller than the first difference threshold and Fexp1-Fexp2 is smaller than the second difference threshold.

Here, if Pexp2-Pexp1 is less than the first difference threshold and Fexp1-Fexp2 is less than the second difference threshold, then step S708 is entered; if Pexp2-Pexp1 is not less than the first difference threshold or Fexp1-Fexp2 is not less than the second difference Value threshold, then step S707 is entered.

The first difference threshold and the second difference threshold may be preset by the user, or may be set by default when the ventilating device is shipped from the factory. For example, the first difference threshold may be 1 centimeter water (cmH2O), and the second difference threshold may be 1 liter per minute (Liter Per Minute, LPM).

In step S707, it is determined that the ventilation device is currently in the double-tube oxygen therapy mode.

In step S708, it is determined that the ventilation device is currently in the single-tube oxygen therapy mode.

In other embodiments, after the oxygen therapy mode of the ventilation device is determined, the oxygen therapy mode showing the current location of the ventilation device can also be output, and the air supply operation of the relevant pipeline type is performed.

It should be noted that in other embodiments, the expiratory pressure or expiratory flow rate can also be used alone to determine the current oxygen therapy mode of the ventilator, identify the type of single and double circuits, and perform oxygen therapy corresponding to single and double tubes. Breathing, and in dual-tube oxygen therapy mode, by closing the exhalation valve to prevent oxygen-rich gas from leaking from the exhalation tube, and real-time detection of the pressure in the exhalation branch, the pressure in the exhalation branch is greater than the first pressure threshold At that time, the exhalation valve is opened to relieve pressure, so as to avoid harm to the patient due to excessive airway pressure, and improve the safety of the device.

It should be noted that if the above photoacoustic imaging method is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or part of contributions to the prior art. The computer software product is stored in a storage medium and includes several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the methods of the embodiments of the present application. The foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM, Read Only Memory), a magnetic disk, or an optical disk. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

Correspondingly, an embodiment of the present application further provides a computer storage medium that stores computer-executable instructions. When the computer-executable instructions are executed by a processor, the steps of the control method of the ventilation device provided in the foregoing embodiments are implemented.

It should be understood that “one embodiment” or “one embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, “in one embodiment” or “in one embodiment” appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean that the execution order is sequential, and the execution order of each process should be determined by its function and inherent logic, and should not correspond to the embodiments of the present application The implementation process constitutes no limitation. The sequence numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

It should be noted that in this article, the terms "include", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, It also includes other elements that are not explicitly listed, or include elements inherent to this process, method, article, or device. Without more restrictions, the element defined by the sentence "include one..." does not exclude that there are other identical elements in the process, method, article or device that includes the element.

In the several embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. The device embodiments described above are only schematic. For example, the division of units is only a division of logical functions. In actual implementation, there may be other division methods, such as: multiple units or components may be combined or integrated To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed components are coupled to each other, or directly coupled, or the communication connection may be through some interfaces, and the indirect coupling or communication connection of the device or unit may be electrical, mechanical, or other forms of.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, the functional units in the embodiments of the present application may all be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.

Those of ordinary skill in the art may understand that all or part of the steps to implement the above method embodiments may be completed by program instructions related hardware. The foregoing program may be stored in a computer-readable storage medium. When the program is executed, the execution includes The steps of the foregoing method embodiments; and the foregoing storage media include various media that can store program codes, such as a mobile storage device, a read-only memory (Read Only Memory, ROM), a magnetic disk, or an optical disk.

Alternatively, if the integrated unit described above is implemented in the form of a software function module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or part of contributions to the prior art. The computer software product is stored in a storage medium and includes several instructions for A computing device (which may be a personal computer, server, or network device, etc.) executes all or part of the methods of the embodiments of the present application. The foregoing storage media include various media that can store program codes, such as mobile storage devices, ROM, magnetic disks, or optical disks.

The above is only the implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. Covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A ventilation device, characterized in that the ventilation device includes: a driving module, a breathing circuit and a ventilation control module, wherein:

The ventilation control module controls the drive module to provide ventilation support to the patient through the breathing circuit;

The breathing circuit includes an inhalation branch and an exhalation branch; the inhalation branch is provided with an inhalation valve, and the exhalation branch is provided with an exhalation valve;

When the ventilation control module is in the double-tube oxygen therapy mode, the exhalation valve is closed, the inhalation valve is opened, and oxygen-enriched gas is output through the inhalation branch.
The ventilation device according to claim 1, wherein the breathing circuit further includes a pressure measurement module disposed in the inspiratory branch and/or the expiratory branch, and a flow rate disposed in the expiratory branch At least one of the measurement modules, the pressure measurement module is used to detect the pressure in the inspiratory branch and/or the exhalation branch; the flow rate measurement module is used to detect the gas flow rate in the exhalation branch.
The ventilation device according to claim 2, characterized in that the pressure measurement module is provided at least on the expiratory branch, and during oxygen therapy, the ventilation control module detects the expiratory branch in the pressure measurement module When the third pressure of the circuit is greater than the first pressure threshold, the exhalation valve is opened, and the pressure in the exhalation branch is kept less than or equal to the first pressure threshold.
The ventilation device according to claim 3, wherein the ventilation device further comprises an alarm module and an output module, wherein:

The alarm module, when the third pressure of the exhalation branch detected by the pressure measurement module is greater than the second pressure threshold, send an alarm message to the output module;

The output module outputs the alarm information after receiving the alarm information sent by the alarm module.
The ventilation device according to any one of claims 1 to 4, wherein the ventilation control module outputs oxygen-enriched gas to the patient through the inspiratory branch when in the single-tube oxygen therapy mode.
The ventilation device according to claim 5, characterized in that the ventilation device further comprises a processing module;

When the exhalation valve is opened and closed, the processing module according to the pressure change of the inspiratory branch or exhalation branch detected by the pressure measurement module, and/or the exhalation detected by the flow rate measurement module The flow rate of the gas branch changes and determines whether the current oxygen therapy mode is the double-tube oxygen therapy mode or the single-tube oxygen therapy mode.
The ventilation device according to claim 6, wherein the processing module obtains the first pressure of the inhalation branch or exhalation branch detected by the pressure measurement module when the exhalation valve is opened, And acquiring the second pressure of the inhalation branch or the exhalation branch detected by the pressure measurement module when the exhalation valve is closed;

If the first change between the first pressure and the second pressure satisfies the first preset condition, the processor determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition, the processor determines that the oxygen therapy mode currently in the ventilation device is the single-tube oxygen therapy mode.
The ventilation device according to claim 6 or 7, wherein the processing module obtains the first flow rate of the exhalation branch detected by the flow rate measurement module when the exhalation valve is opened, and obtains all When the exhalation valve is closed, the second flow rate of the exhalation branch detected by the flow rate measurement module;

If the second variation between the first flow rate and the second flow rate satisfies the second preset condition, the processor determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the second change amount does not satisfy the second preset condition, the processor determines that the oxygen therapy mode in which the ventilation device is currently in is the single-tube oxygen therapy mode.
The ventilation device according to claim 8, wherein if the first change amount satisfies the first preset condition or the second change amount satisfies the second preset condition, the process The device determines that the current oxygen therapy mode of the ventilation device is the double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition, and the second change amount does not satisfy the second preset condition, the processor determines that the oxygen therapy mode currently in the ventilation device is single Tube oxygen therapy mode.
The ventilation device according to any one of claims 6, wherein the output module is further configured to output and display an oxygen therapy mode in which the ventilation device is currently in.
A control method of a ventilation device is applied to a ventilation device. The ventilation device includes at least a receiving module, a driving module, a breathing circuit and a ventilation control module. The method is characterized in that the method includes:

The receiving module receives an instruction to start the oxygen therapy mode;

When the received command to open the oxygen therapy mode is to open the two-tube oxygen therapy mode, the ventilation control module controls the exhalation valve of the ventilation device to close, controls the inhalation valve of the ventilation device to open, and controls the drive The module outputs oxygen-enriched gas through the inspiratory branch in the breathing circuit.
According to the method of claim 11, the ventilation device further comprises a processing module, characterized in that, after the receiving module receives the instruction to start the oxygen therapy mode, the method further comprises:

The ventilation control module controls the exhalation valve to open, and the processing module obtains the first oxygen therapy parameter of the ventilation device;

The ventilation control module controls the exhalation valve of the ventilation device to close, and the processing module obtains the second oxygen therapy parameter of the ventilation device;

The processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter.
The method according to claim 12, wherein the first oxygen therapy parameter includes a first pressure of an inspiratory branch or an expiratory branch, and the second oxygen therapy parameter includes an inspiratory branch or an expiratory branch For the second pressure of the gas branch, correspondingly, the processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter, including:

If the first change between the first pressure and the second pressure meets the first preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a single-tube oxygen therapy mode.
The method according to claim 12, wherein the first oxygen therapy parameter includes a first flow rate of the expiratory branch, and the second oxygen therapy parameter includes a second flow rate of the expiratory branch, correspondingly The processing module determines the current oxygen therapy mode of the ventilation device according to the first oxygen therapy parameter and the second oxygen therapy parameter, including:

If the second variation between the first flow rate and the second flow rate satisfies the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is the double-tube oxygen therapy mode;

If the second change amount does not satisfy the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a single-tube oxygen therapy mode.
The method according to claim 12, wherein the first oxygen therapy parameter includes a first pressure of an inspiratory branch or an expiratory branch and a first flow rate of an expiratory branch, and the second oxygen The therapy parameters include the second pressure of the inspiratory branch or the expiratory branch and the second flow rate of the expiratory branch. Correspondingly, the processing module is determined according to the first oxygen therapy parameter and the second oxygen therapy parameter The current oxygen therapy mode of the ventilation equipment includes:

If the first change between the first pressure and the second pressure satisfies the first preset condition, or the second change between the first flow rate and the second flow rate satisfies the second preset Conditions, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a double-tube oxygen therapy mode;

If the first change amount does not satisfy the first preset condition and the second change amount does not satisfy the second preset condition, the processing module determines that the oxygen therapy mode in which the ventilation device is currently in is a single-tube oxygen therapy mode .
The method according to any one of claims 11 to 14, wherein if the oxygen therapy mode in which the ventilation device is currently in is a double-tube oxygen therapy mode, the ventilation control module controls the ventilation device After the exhalation valve is closed, the method further includes:

The processing module obtains the current third pressure of the ventilation device;

If the third pressure is greater than the first pressure threshold, the ventilation control module controls the exhalation valve to open to maintain the pressure of the exhalation branch of the ventilation device less than or equal to the first pressure threshold.
The method according to claim 16, wherein the ventilation device further comprises an alarm module and an output module, characterized in that the method further comprises:

When the third pressure of the exhalation branch detected by the pressure measurement module is greater than the second pressure threshold, the alarm module sends an alarm message to the output module;

After receiving the alarm information sent by the alarm module, the output module outputs the alarm information.
The method according to any one of claims 11 to 15, wherein the method further comprises:

The output module outputs the oxygen therapy mode in which the ventilation device is currently located.
The method according to claim 11, wherein the method further comprises:

When the received instruction to start the oxygen therapy mode is to start the single-tube oxygen therapy mode, the ventilation control module outputs oxygen-enriched gas to the patient through the inhalation branch.
A computer storage medium, characterized in that a control program of a ventilation device is stored in the computer storage medium, and when the control program of the ventilation device is executed by a processor, the ventilation according to any one of claims 11 to 19 is realized Equipment control method steps.