CN112955202A - Ventilation equipment, control method thereof and computer storage medium - Google Patents
Ventilation equipment, control method thereof and computer storage medium Download PDFInfo
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- CN112955202A CN112955202A CN201880099223.4A CN201880099223A CN112955202A CN 112955202 A CN112955202 A CN 112955202A CN 201880099223 A CN201880099223 A CN 201880099223A CN 112955202 A CN112955202 A CN 112955202A
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Abstract
A ventilator device (200), a control method of a ventilator device (200), and a computer storage medium, the ventilator device (200) comprising: a drive module (201), a breathing circuit (202) and a ventilation control module (203); the ventilation control module (203) controlling the drive module (201) to provide ventilation support to the patient through the breathing circuit (202); the breathing circuit (202) comprises an inspiratory branch (2021) and an expiratory branch (2022); the inspiration branch (2021) is provided with an inspiration valve, and the expiration branch (2022) is provided with an expiration valve; the ventilation control module (203) controls the expiration valve to be closed and the inspiration valve to be opened when the double-tube oxygen therapy mode is performed, and oxygen-enriched gas is output through the inspiration branch circuit (2021).
Description
The present application relates to the field of medical devices, and relates to, but is not limited to, a ventilator, a method of controlling the same, and a computer storage medium.
Oxygen therapy, as a sequential treatment modality, is a widely used medical procedure. The sequential treatment is a treatment means for performing noninvasive ventilation or oxygen therapy after a patient is subjected to invasive ventilation and tube extraction. At present, invasive ventilation adopts double-tube ventilation, so that when a patient enters oxygen therapy after off-line, the double-tube ventilation needs to be replaced by a single tube, thereby not only increasing the operation of medical staff, but also increasing the infection risk of the patient and the cost for replacing a pipeline.
Disclosure of Invention
In view of this, embodiments of the present application are expected to provide a ventilator, a control method thereof, and a computer storage medium, which solve the problem in the prior art that when a ventilator with a dual-tube exhalation circuit is used to perform oxygen therapy on an offline patient, the dual-tube oxygen therapy can be implemented without replacing a tube, so as to reduce operations of medical staff, and reduce infection risks of the patient and costs for replacing the tube.
The technical scheme of the embodiment of the application is realized as follows:
an embodiment of the present application provides a ventilator, including: the device comprises 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 comprises an inspiration branch and an expiration branch; the inspiration branch is provided with an inspiration valve, and the expiration branch is provided with an expiration valve; and the ventilation control module controls the expiration valve to be closed and the inspiration valve to be opened when the double-tube oxygen therapy mode is adopted, and oxygen-enriched gas is output through the inspiration branch.
The breathing circuit further comprises at least one of a pressure measuring module arranged in the inspiration branch and/or the expiration branch and a flow rate measuring module arranged in the expiration branch, wherein the pressure measuring module is used for detecting the pressure in the inspiration branch and/or the expiration branch; the flow rate measuring module is used for detecting the gas flow rate in the expiration branch.
In the above scheme, the pressure measurement module is at least arranged in the expiratory limb, and in the oxygen therapy process, the ventilation control module opens the expiratory valve when the pressure measurement module detects that the third pressure of the expiratory limb is greater than the first pressure threshold, so as to keep the pressure of the expiratory limb less than or equal to the first pressure threshold.
In the above aspect, the ventilation apparatus further includes an alarm module and an output module, wherein:
the alarm module is used for sending alarm information to the output module when the third pressure of the expiration branch detected by the pressure measurement module is greater than a second pressure threshold;
and the output module is used for outputting the alarm information after receiving the alarm information sent by the alarm module.
In the above scheme, the ventilation control module outputs oxygen-enriched gas to the patient through the inspiration branch in the single-tube oxygen therapy mode.
In the above aspect, the ventilation apparatus further comprises a processing module;
and the processing module determines that the current oxygen therapy mode is a double-tube oxygen therapy mode or a single-tube oxygen therapy mode according to the pressure change of the expiration branch detected by the pressure measuring module and/or the flow rate change of the expiration branch detected by the flow rate measuring module under the condition that the expiration valve is opened and closed.
In the above scheme, the pressure measurement module detects a first pressure of the expiratory limb, and acquires a second pressure of the expiratory limb detected by the pressure measurement module when the expiratory valve is closed;
if a first variation between the first pressure and the second pressure meets a first preset condition, the processor determines that the oxygen therapy mode in which the ventilator is currently located is a double-tube oxygen therapy mode;
and if the first variation does not meet the first preset condition, the processor determines that the current oxygen therapy mode of the ventilator is a single-tube oxygen therapy mode.
In the above scheme, the processing module obtains a first flow rate of the expiratory limb detected by the flow rate measurement module when the expiratory valve is opened and a second flow rate of the expiratory limb detected by the flow rate measurement module when the expiratory valve is closed;
if a second change amount between the first flow rate and the second flow rate meets a second preset condition, the processor determines that the oxygen therapy mode in which the ventilator is currently located is a double-tube oxygen therapy mode;
and if the second variation does not meet the second preset condition, the processor determines that the current oxygen therapy mode of the ventilator is a single-tube oxygen therapy mode.
In the above scheme, if the first variation satisfies the first preset condition, or the second variation satisfies the second preset condition, the processor determines that the current oxygen therapy mode of the ventilator is a dual-tube oxygen therapy mode;
and if the first variation does not meet the first preset condition and the second variation does not meet the second preset condition, the processor determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
In the above scheme, the output module is configured to output and display an oxygen therapy mode in which the ventilator is currently located.
An embodiment of the present application further provides a control method of a ventilator, which is applied to a ventilator, where the ventilator at least includes: a receiving module, a driving module, a breathing circuit and a ventilation control module, wherein the method comprises:
the receiving module receives an instruction of starting an oxygen therapy mode;
when the received instruction for starting the oxygen therapy mode is to start the double-tube oxygen therapy mode, the ventilation control module controls the expiration valve of the ventilation device to be closed and controls the inspiration valve of the ventilation device to be opened so as to control the driving module to output oxygen-enriched gas through an inspiration branch in the breathing circuit.
In the above aspect, the ventilator further includes a processing module, wherein after the receiving module receives the 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 acquires a first oxygen therapy parameter of the ventilation apparatus;
the ventilation control module controls an exhalation valve of the ventilation device to close, and the processing module acquires a second oxygen therapy parameter of the ventilation device;
the processing module determines an oxygen therapy mode in which the ventilator is currently located based on the first oxygen therapy parameter and the second oxygen therapy parameter.
In the above solution, the first oxygen therapy parameter includes a first pressure of an inhalation branch or an exhalation branch, the second oxygen therapy parameter includes a second pressure of the inhalation branch or the exhalation branch, and 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 a first variation between the first pressure and the second pressure meets a first preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode;
and if the first variation does not meet the first preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
In the above solution, the first oxygen therapy parameter includes a first flow rate of an expiratory limb, the second oxygen therapy parameter includes a second flow rate of the expiratory limb, and correspondingly, the processing module determines the current oxygen therapy mode of the ventilator according to the first oxygen therapy parameter and the second oxygen therapy parameter, including:
if a second variation between the first flow rate and the second flow rate meets a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode;
and if the second variation does not meet the second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
In the above solution, the first oxygen therapy parameter includes a first pressure of an inhalation branch or an exhalation branch and a first flow rate of an exhalation branch, the second oxygen therapy parameter includes a second pressure of the inhalation branch or the exhalation branch and a second flow rate of the exhalation branch, and 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 a first variation between the first pressure and the second pressure meets a first preset condition or a second variation between the first flow rate and the second flow rate meets a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode;
and if the first variation does not meet a first preset condition and the second variation does not meet a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
In the above aspect, after the ventilation control module controls the exhalation valve of the ventilation apparatus to close if the oxygen therapy mode in which the ventilation apparatus is currently located is the dual-tube oxygen therapy mode, the method further includes:
the processing module acquires a current third pressure of the ventilator;
if the third pressure is greater than a first pressure threshold, the ventilation control module controls the exhalation valve to open to maintain the pressure of the exhalation limb of the ventilator less than or equal to the first pressure threshold.
In the above solution, the ventilator further includes an alarm module and an output module, and the method further includes:
when the third pressure of the expiration branch detected by the pressure measurement module is greater than a second pressure threshold, the alarm module sends alarm information to the output module;
and the output module outputs the alarm information after receiving the alarm information sent by the alarm module.
In the above aspect, the method further includes:
the output module outputs the current oxygen therapy mode of the ventilation device.
In the above aspect, the method further includes:
when the received instruction for starting 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 inspiration branch.
An embodiment of the present application provides a computer storage medium having a control program for a ventilator stored therein, where the control program for a ventilator realizes the steps of the control method for a ventilator described above when executed by a processor.
An embodiment of the present application provides a ventilator, a control method thereof, and a computer storage medium, wherein the ventilator includes: the device comprises a driving module, a breathing circuit and a ventilation control module; the ventilation control module controls the drive module to provide ventilation support to the patient through the respiratory circuit; the breathing circuit comprises an inspiration branch and an expiration branch; the inspiration branch is provided with an inspiration valve, and the expiration branch is provided with an expiration valve; the ventilation control module controls the expiration valve to be closed and the inspiration valve to be opened when in a double-tube oxygen therapy mode, and oxygen-enriched gas is output through the inspiration branch; so, when utilizing the aeration equipment who possesses double-barrelled expiratory circuit to carrying out the oxygen therapy to the patient after the off-line, can not carry out the change of pipeline and can realize double-barrelled oxygen therapy to can reduce medical personnel's operation, and reduce patient's infection risk and the expense of changing the pipeline.
FIG. 1 is a schematic view of a single tube ventilation oxygen therapy mode in the related art;
FIG. 2 is a schematic structural diagram of the ventilator according to the embodiment of the present application;
FIG. 3 is a schematic diagram of another embodiment of the aeration apparatus of the present application;
fig. 4 is a schematic flow chart illustrating an implementation of a control method of a ventilator according to an embodiment of the present application;
fig. 5 is a schematic flow chart of another implementation of the control method of the ventilator according to the embodiment of the present application;
fig. 6 is a schematic flow chart illustrating a further implementation of a control method of a ventilator according to an embodiment of the present application;
fig. 7 is a schematic flow chart illustrating an implementation process of a single-double tube oxygen therapy mode identification process according to an embodiment of the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, specific technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
For better understanding of the embodiments of the present application, first, a single-tube ventilation oxygen therapy method and a double-tube ventilation oxygen therapy method in the related art will be described.
Fig. 1 is a schematic view of an oxygen therapy mode by single-tube ventilation, and as shown in fig. 1, a ventilator 101 has an inhalation tube interface 102 and an exhalation tube interface 103, and in the single-tube ventilation oxygen therapy mode, an inhalation tube, that is, an inhalation branch 104, is connected to only the inhalation tube interface. When the ventilator turns on the oxygen therapy function, oxygen-enriched gas is output to the patient through the inspiration limb 104.
In this embodiment, a ventilator is provided, and fig. 2 is a schematic structural diagram of a ventilator according to an embodiment of the present application, and as shown in fig. 2, the ventilator 200 includes: a drive module 201, a breathing circuit 202, and a ventilation control module 203, wherein:
a ventilation control module 203 that controls the drive module 201 to provide ventilation support to the patient via the breathing circuit 202. Here, the ventilation control module 203 may control the driving module 201 to provide oxygen-enriched gas to the patient through the breathing circuit 202.
A breathing circuit 202 comprising an inspiratory limb 2021 and an expiratory limb 2022; and the inspiration branch 2021 is provided with an inspiration valve and the expiration branch 2022 is provided with an expiration valve.
When the double-tube oxygen therapy mode is performed, the ventilation control module 203 controls the exhalation valve to be closed and controls the inhalation valve to be opened, and oxygen-enriched gas is output through the inhalation branch 2021.
In other embodiments, the ventilation control module 203 outputs the oxygen-enriched gas to the patient through the inspiration branch 2021 during the single-tube oxygen therapy mode, that is, in the single-tube oxygen therapy mode, the oxygen-enriched gas is directly output to the patient through the inspiration branch 2021 without controlling the expiration valve to be closed.
In this embodiment, the dual-tube oxygen therapy mode refers to that an inhalation tube is connected to the interface of the inhalation branch 2021 of the ventilator, and an exhalation tube is connected to the interface of the exhalation branch 2022; the single-tube oxygen therapy mode means that an air suction tube is connected to the interface of the air suction branch 2021 of the ventilation device, and an air expiration tube is not connected to the interface of the air expiration branch 2022.
Ventilation apparatus 200 provided in the present embodiment includes a drive module 201, a breathing circuit 202, and a ventilation control module 203, wherein ventilation control module 203 controls drive module 201 to provide ventilation support to a patient via breathing circuit 202; the breathing circuit 202 includes an inspiratory limb 2021 and an expiratory limb 2022; the inspiration branch 2021 is provided with an inspiration valve, and the expiration branch 2022 is provided with an expiration valve; the ventilation control module 203 controls the expiratory valve to be closed and controls the inspiratory valve to be opened when the double-tube oxygen therapy mode is performed, and further outputs oxygen-enriched gas through the inspiratory branch 2021, so that the double-tube oxygen therapy can be realized without replacing the pipeline, the operation of medical personnel can be reduced, and the infection risk of patients and the cost for replacing the pipeline can be reduced.
Based on the foregoing embodiments, fig. 3 is a schematic diagram of another structure of the ventilator implemented in this application, and as shown in fig. 3, the ventilator 300 at least includes a driving module 301, a breathing circuit 302, a ventilation control module 303, and a processing module 304, where: a ventilation control module 303 that controls the drive module 301 to provide ventilation support to the patient via the breathing circuit 302;
the breathing circuit 302 comprises an inspiratory branch 3021 and an expiratory branch 3022, and the inspiratory branch 3021 is provided with an inspiratory valve and the expiratory branch 3022 is provided with an expiratory valve.
In this embodiment, the breathing circuit 302 may further include a pressure measurement module 3023 for detecting airway pressure, and in a specific implementation, the pressure measurement module 3023 may be a pressure sensor, and the pressure measurement module 3023 is disposed in the inspiratory branch 3021 or the expiratory branch 3022. The breathing circuit 302 may further include a flow measurement module 3024 disposed in the expiratory limb 3022, and in this embodiment, the expiratory limb 3022 includes at least one of a pressure measurement module 3023 and a flow measurement module 3024.
In fig. 3, a pressure measurement module 3023 is disposed in the inspiratory branch 3021 and a flow rate measurement module 3024 is disposed in the expiratory branch 3022, but it is also possible to provide one pressure measurement module 3023 in each of the inspiratory branch 3021 and the expiratory branch 3022 and provide a flow rate measurement module 3024 in the expiratory branch 3022, so that the flow rate of gas passing through the expiratory branch 3022 can be measured.
The processing module 304 determines that the current oxygen therapy mode of the ventilator is a dual-tube oxygen therapy mode or a single-tube oxygen therapy mode according to the pressure change of the patient inhalation branch 3021 or the exhalation branch 3022 detected by the pressure measurement module 3023 and/or the flow rate change of the exhalation branch 3022 detected by the flow rate measurement module 3024 when the exhalation valve is opened and closed.
When the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode, the exhalation valve is controlled to be closed, the inhalation valve is controlled to be opened, and oxygen-enriched gas is output through the inhalation branch circuit 3021.
When the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode, oxygen-enriched gas is output through the inspiration branch 3021.
During dual-tube oxygen therapy, the ventilation control module 303 opens the exhalation valve and maintains the pressure in the exhalation branch 3022 less than or equal to the first pressure threshold when the third pressure of the exhalation branch 3022 detected by the pressure measurement module 3023 is greater than the first pressure threshold.
Here, after a certain period of time after opening the exhalation valve, the ventilation control module 303 closes the exhalation valve and continues to output oxygen-enriched gas to the patient through the inhalation branch 3021 when the fourth pressure of the exhalation branch 3022 detected by the pressure measurement module 3023 is less than the third pressure threshold.
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 ventilator further comprises an alarm module and an output module, wherein the output module can comprise a voice player, a display screen and the like, and the output module can be used for outputting and displaying the current oxygen therapy mode of the ventilator. In the oxygen therapy process, when the third pressure of the expiratory branch detected by the pressure measurement module 3023 is greater than the second pressure threshold, the alarm module sends alarm information to the output module. The output module can give an alarm to 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 of the ventilation device may be output in the form of audio or image. That is to say, can report the current oxygen therapy mode and the alarm information that are located of ventilation equipment through the pronunciation, also can be on the display screen show the current oxygen therapy mode and the alarm information that are located of ventilation equipment.
In this embodiment, when determining whether the oxygen therapy mode currently located by the ventilator is the dual-tube oxygen therapy mode or the single-tube oxygen therapy mode, the processing module 304 may determine only by the pressure change of the inspiration branch 3021 or the expiration branch 3022, only by the flow rate change of the expiration branch 3022, or by both the pressure change and the flow rate change.
When the oxygen therapy mode is determined only by the pressure change of the inspiration branch 3021 or the expiration branch 3022, the processing module 304 first obtains the first pressure of the inspiration branch 3021 or the expiration branch 3022 detected by the pressure measurement module 3023 when the expiration valve is opened; when the expiratory valve is closed, the pressure measurement module 3023 detects a second pressure of the inspiratory branch 3021 or the expiratory branch 3022; if the first variation between the first pressure and the second pressure meets the first preset condition, the processor 304 determines that the oxygen therapy mode in which the ventilator is currently located is a dual-tube oxygen therapy mode; if the first variation does not satisfy the first preset condition, the processor 304 determines that the oxygen therapy mode in which the ventilator is currently located is the single-tube oxygen therapy mode.
In practical applications, the first variation may be a first difference between the second pressure and the first pressure, and the first preset condition may be that the first difference is greater than a preset first difference threshold; the first change amount may 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 variation, the processing module 304 acquires a first flow rate of the expiratory limb 3022 detected by the flow rate measurement module 3024 when the expiratory valve is open, and acquires a second flow rate of the expiratory limb 3022 detected by the flow rate measurement module 3024 when the expiratory valve is closed; if a second amount of change between the first flow rate and the second flow rate satisfies a second predetermined condition, the processor 304 determines that the oxygen therapy mode in which the ventilator is currently located is a 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 ventilator is currently located is the single-tube oxygen therapy mode.
In practical applications, the second variation may be a second difference between the first flow rate and the second flow rate, and the second preset condition may be that the second difference is greater than a preset second difference threshold; the second amount of change may also be a second rate of change from the first flow rate to a second flow rate, and the second predetermined condition may be that the second rate of change is greater than a second rate of change threshold.
When the oxygen therapy mode is determined by the pressure change and the flow rate change together, the first pressure of the inspiration branch 3021 or the expiration branch 3022 detected by the pressure measurement module 3023 and the first flow rate of the expiration branch 3022 detected by the flow rate measurement module 3024 when the expiration valve is opened are acquired first; when the expiratory valve is closed, a second pressure of the inspiratory branch 3021 or the expiratory branch 3022 detected by the pressure measurement module 3023 and a second flow rate of the expiratory branch 3022 detected by the flow rate measurement module 3024 are obtained; if a first variation between the first pressure and the second pressure satisfies a first preset condition, or a second variation between the first flow rate and the second flow rate satisfies a second preset condition, the processor 304 determines that the current oxygen therapy mode of the ventilator is a dual-tube oxygen therapy mode; if the first variation between the first pressure and the second pressure does not satisfy the first predetermined condition and the second variation between the first flow rate and the second flow rate does not satisfy the second predetermined condition, the processor 304 determines that the oxygen therapy mode in which the ventilator is currently located 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 inspiration branch 3021 detected by the pressure measurement module 3023, the second pressure is the pressure of the inspiration branch 3021 detected by the measurement module; if the first pressure is the pressure of the expiratory limb 3022 detected by the pressure measurement module 3023, then the second pressure is the pressure of the expiratory limb 3022 detected by the measurement module.
The ventilation device 300 provided by the present embodiment at least includes 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 for the patient through the breathing circuit 302; the breathing circuit 302 includes an inspiratory branch 3021 and an expiratory branch 3022; the inspiration branch 3021 is provided with an inspiration valve, and the expiration branch 3022 is provided with an expiration valve; breathing circuit 302 further includes a pressure measurement module 3023 for detecting airway pressure and a flow measurement module 3024 disposed in the expiratory limb; the processing module 304 determines that the current oxygen therapy mode of the ventilator is a dual-tube oxygen therapy mode or a single-tube oxygen therapy mode according to the pressure change detected by the pressure measurement module 3023 and/or the flow rate change detected by the flow rate measurement module 3024 when the exhalation valve is opened and closed; when the current oxygen therapy mode of the ventilation equipment is a double-tube oxygen therapy mode, the exhalation valve is controlled to be closed, the suction valve is controlled to be opened, and oxygen-enriched gas is output through the suction branch circuit 3021; when the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode, oxygen-enriched gas is output through the inspiration branch 3021; so, not only can confirm the oxygen therapy mode that ventilation equipment is located at present voluntarily, can also not carry out the change of pipeline and can realize double-barrelled oxygen therapy to can reduce medical personnel's operation, and reduce patient's infection risk and the expense of changing the pipeline. In addition, when the pressure of the expiratory branch 3021 detected by the pressure measurement module 3023 is greater than the first pressure threshold, the ventilation control module 303 opens the expiratory valve and keeps the airway pressure of the patient less than or equal to the first pressure threshold, so that the patient can be prevented from being injured by the patient due to the overhigh pressure caused by the blockage of the patient end, and the safety of the ventilation apparatus is improved.
The embodiment of the application provides a control method of a ventilation device, which is applied to the ventilation device, and the ventilation device at least comprises: the device comprises a receiving module, a driving module, a breathing circuit and a ventilation control module. Fig. 4 is a schematic flow chart illustrating an implementation of a control method of a ventilator according to an embodiment of the present application, as shown in fig. 4, the method includes the following steps:
in step S401, the receiving module receives an instruction to start an oxygen therapy mode.
Here, in the present embodiment, the ventilator may be a ventilator. The expiratory circuit in the ventilation device comprises an expiratory branch and an inspiratory branch, wherein the expiratory branch at least comprises an expiratory valve, and the inspiratory branch at least comprises an inspiratory valve.
When the step S401 is implemented, the instruction for turning on the oxygen therapy mode may be generated by pressing or touching a key for turning on the oxygen therapy mode, or may be generated by triggering through a preset voice or gesture. Therefore, the receiving module can be a key, a touch screen, a voice receiving device, an image receiving device and the like.
And S402, when the received instruction for starting the oxygen therapy mode is to start the double-tube oxygen therapy mode, the ventilation control module controls the expiration valve to be closed and controls the inspiration valve to be opened so as to control the driving module to output oxygen-enriched gas through the inspiration branch.
Here, in other embodiments, after receiving the instruction to turn on the oxygen therapy mode, it is further required to determine the oxygen therapy mode currently in which the ventilator is located according to the oxygen therapy parameters of the ventilator, and when the ventilator is currently in the dual oxygen therapy mode, determine that the received instruction to turn on the oxygen therapy mode is an instruction to turn on the dual oxygen therapy mode; when the current position of the ventilation equipment is in the single-tube oxygen therapy mode, the received instruction for starting the oxygen therapy mode is determined to be the instruction for starting the single-tube oxygen therapy mode.
When the received instruction for starting the oxygen therapy mode is a double-tube oxygen therapy mode, the valve sealing pressure of the expiratory valve can be set to be a preset value through the ventilation control module so as to control the expiratory valve to be closed; the valve sealing pressure of the suction valve is set to be zero through the ventilation control module so as to control the suction valve to be opened and output the oxygen-enriched gas through the suction branch.
In the control method of the ventilation device provided by the embodiment, the receiving module receives an instruction for starting the oxygen therapy mode, and when the received instruction for starting the oxygen therapy mode is for starting the double-tube oxygen therapy mode, the ventilation control module controls the expiration valve of the ventilation device to be closed and controls the inspiration valve of the ventilation device to be opened so as to output oxygen-enriched gas through the inspiration branch.
Based on the foregoing embodiments, an embodiment of the present application further provides a control method of a ventilator, which is applied to the ventilators provided in other embodiments, and the ventilator at least includes: the device comprises a receiving module, a driving module, a breathing circuit, a processing module and a ventilation control module. Fig. 5 is a schematic flowchart of another implementation of a control method of a ventilator according to an embodiment of the present application, and as shown in fig. 5, the method includes the following steps:
in step S501, the receiving module receives an instruction to start an oxygen therapy mode.
Step S502, based on the instruction of starting the oxygen therapy mode, the ventilation control module controls the opening of an expiratory valve of the ventilation device, and the processing module obtains a first oxygen therapy parameter of the ventilation device.
Here, in practical applications, the sealing pressure of the expiratory valve may be set to zero by the ventilation control module to control the expiratory valve to open. The first oxygen therapy parameter may include a first pressure of the inspiratory limb or the expiratory limb, and may further include a first flow rate of the expiratory limb.
In step S503, the ventilation control module controls the exhalation valve of the ventilation device to close, and the processing module obtains a second oxygen therapy parameter of the ventilation device.
Here, in practical applications, the ventilation control module may set the sealing pressure of the exhalation valve to a preset value to close the exhalation valve. The second oxygen therapy parameter may include a second pressure of the inspiratory limb or the expiratory limb, and may also include a second flow rate of the expiratory limb.
In step S504, the processing module determines the oxygen therapy mode in which the ventilator is currently located according to the first oxygen therapy parameter and the second oxygen therapy parameter.
Here, step S504 can be implemented by at least the following three implementations:
the first implementation mode comprises the following steps: the processing module determines the current oxygen therapy mode of the ventilation device according to the pressure change of the inspiration branch or the expiration branch, wherein if the first variation between the first pressure and the second pressure meets a first preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode; if the first variation does not meet the first preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
The second implementation mode comprises the following steps: the processing module determines the current oxygen therapy mode of the ventilator according to the flow rate change of the expiratory branch, wherein if a second change between the first flow rate and the second flow rate meets a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilator is a double-tube oxygen therapy mode; if the second variation does not meet the second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is the single-tube oxygen therapy mode.
The third implementation mode comprises the following steps: the processing module determines the current oxygen therapy mode of the ventilator according to the pressure change and the flow rate change, wherein if a first change between the first pressure and the second pressure meets a first preset condition or a second change between the first flow rate and the second flow rate meets a second preset condition, the processing module determines the current oxygen therapy mode of the ventilator to be a double-tube oxygen therapy mode; if the first variation does not meet the first preset condition and the second variation does not meet the second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
In other embodiments, after determining the current oxygen therapy mode, the processing module outputs the current oxygen therapy mode of the ventilator via the output module of the ventilator, so that medical staff and patients can know the oxygen therapy mode of the ventilator in time.
In step S505, the processing module determines whether the ventilator is in a dual-tube oxygen therapy mode.
Here, if the ventilator is in the dual oxygen therapy mode, the process proceeds to step S507; if the ventilator is in the single-tube oxygen therapy mode, the process proceeds to step S506.
Step S506, the ventilation control module controls the driving module to output the oxygen-enriched gas through the inspiration 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 an intake valve of the ventilation device to open so as to control the driving module to output the oxygen-enriched gas through the intake branch.
It should be noted that, for the explanation of the same steps or concepts in the present embodiment as in the other embodiments, reference may be made to the description in the other embodiments.
In step S509, the processing module obtains a current third pressure of the expiratory limb in the ventilator.
Here, the third pressure may be acquired in real time, or may be acquired at a certain time interval, for example, may be acquired at 5 seconds intervals.
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 indicates that the pressure of the exhalation branch of the ventilator is too high, which is likely to cause harm to the patient, and then the process goes to step S512, where the pressure is released by opening the exhalation valve; if the third pressure is not greater than the first pressure threshold, indicating that the pressure in the expiratory limb of the ventilator is not likely to be harmful to the patient, 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 expiratory valve to open to maintain the pressure of the ventilation device less than or equal to a first pressure threshold.
In step S513, the processing module obtains a current fourth pressure of the expiratory limb in the ventilator.
Here, the fourth pressure may be acquired in real time, or may be acquired at a certain time interval, for example, may be acquired at 5 seconds intervals.
In step S514, the processing module determines whether the fourth pressure is less than a third pressure threshold.
Here, if the fourth pressure is less than the third pressure threshold, which indicates that the current pressure of the expiratory limb of the ventilator is small, the expiratory valve may be sealed again to prevent the oxygen-enriched gas from leaking out of the expiratory limb, and then the process proceeds to step S507; if the fourth pressure is not less than the third pressure threshold, which indicates that the current pressure of the expiratory limb of the ventilator is still greater, step S515 is performed to keep the expiratory valve open, so as to avoid the harm to the patient due to the excessive airway pressure.
In step S515, the ventilation control module keeps the expiratory valve open and loops to step S513.
In other embodiments, after step S508, the method further comprises: if the third pressure is larger than the second pressure threshold value, alarm information is output to prompt a user that the pressure of the exhalation branch of the ventilation equipment is too large, so that harm is easily caused to a patient, and the ventilation equipment needs to be suspended.
In the control method of the ventilation device provided by the embodiment, firstly, when an operation instruction for starting the oxygen therapy mode is detected, the expiratory valve of the ventilation device is controlled to be opened, and a first oxygen therapy parameter of the ventilation device is obtained; then controlling an expiratory valve of the ventilation equipment to be closed, and acquiring a second oxygen therapy parameter of the ventilation equipment; determining that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode or a single-tube oxygen therapy mode according to the first oxygen therapy parameter and the second oxygen therapy parameter, and controlling an expiratory valve of the ventilation device to be closed when the ventilation device is in the double-tube oxygen therapy mode; controlling an air suction valve of the ventilation equipment to open so as to output oxygen-enriched gas through an air suction branch, and directly outputting oxygen-enriched gas through the air suction branch when the ventilation equipment is in single-tube oxygen therapy; therefore, the ventilation equipment can determine the current oxygen therapy mode and carry out air supply operation of the related oxygen therapy mode, thereby reducing the operation of medical personnel, and reducing the infection risk of patients and the cost for replacing pipelines; and the current third pressure of the patient is acquired in a double-tube oxygen therapy mode, and when the third pressure is greater than the first pressure threshold value, the expiratory valve is opened to release the pressure, so that the condition that the pressure of the patient end is too high due to the closing of the expiratory valve and the patient is injured is prevented.
Fig. 6 is a schematic flow chart of another implementation of the control method of the ventilator according to the embodiment of the present application, and as shown in fig. 6, the method includes the following steps:
in step S601, after the oxygen therapy mode is turned on, the ventilator starts to supply air.
And step S602, controlling an expiratory valve of the ventilation equipment to seal the valve according to the set pressure.
Here, the set pressure may be set by default when the ventilator is shipped from the factory, or may be set manually by the user.
Step S603, monitoring the third pressure of the expiratory limb in real time when the ventilator performs the oxygen therapy ventilation, and determining whether the third pressure of the expiratory limb is greater than the first pressure threshold.
Here, if the third pressure is greater than the first pressure threshold, it indicates that the pressure in the expiratory branch is too high and is likely to cause harm to the patient, and then step S604 is performed; if the third pressure is less than or equal to the first pressure threshold and the ventilator is in an alarm state, then step S606 is entered.
And step S604, controlling the expiratory valve to be opened, relieving pressure and keeping the pressure in the expiratory branch not to exceed a first pressure threshold.
Here, in other embodiments, after step S604, it is determined whether to close the exhalation valve again according to the real-time monitored current pressure of the exhalation branch, and in an actual application process, it may be determined whether the current pressure of the exhalation branch is smaller than a third threshold, where when the current pressure of the exhalation branch is smaller than the third threshold, the exhalation valve may be closed again.
Step S605, an alarm is given to prompt the user of airway obstruction.
And step S606, clearing 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 factory default or manually set by the user, and the alarm may be cancelled when the third pressure is below the alarm threshold.
In this embodiment, before the step S602 "controlling the expiratory valve of the ventilator to seal the valve according to the set pressure", the control method of the ventilator further includes a single-double tube oxygen therapy mode identification process, and fig. 7 is a schematic implementation flow diagram of the identification process of the single-double tube oxygen therapy mode in the embodiment of the present application, and as shown in fig. 7, the process includes:
in step S701, the ventilation device starts the oxygen therapy function and starts air supply.
Step S702, the exhalation valve is opened.
In step S703, the current expiratory flow rate Fexp1 and expiratory pressure Pexp1 are measured.
Step S704, the exhalation valve is closed.
In step S705, the current expiratory flow rate Fexp2 and expiratory pressure Pexp2 are measured.
Step S706, judging whether Pexp2-Pexp1 is smaller than the first difference threshold and Fexp1-Fexp2 is smaller than the second difference threshold.
Here, if Pexp2-Pexp1 are less than the first difference threshold and Fexp1-Fexp2 are less than the second difference threshold, then step S708 is entered at this time; if Pexp2-Pexp1 is not less than the first difference threshold or Fexp1-Fexp2 is not less than the second difference threshold, then step S707 is entered.
The first and second difference thresholds may be preset by the user, or may be default settings of the ventilator at the time of factory shipment. For example, the first difference threshold may be 1 centimeter of 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 ventilator is currently in the dual oxygen therapy mode.
In step S708, it is determined that the ventilator is currently in the single-tube oxygen therapy mode.
In other embodiments, after the oxygen therapy mode of the ventilator is determined, the current oxygen therapy mode of the ventilator can be output and displayed, and the air supply operation of the relevant pipeline type can be carried out.
It should be noted that, in other embodiments, the current oxygen therapy mode of the ventilation device may also be determined by separately using the expiratory pressure or the expiratory flow rate, the single-double pipeline type is identified, and oxygen therapy air supply corresponding to the single double pipe is performed, and in the double pipe oxygen therapy mode, the oxygen-enriched air is prevented from leaking from the expiratory pipe by closing the expiratory valve, and the pressure in the expiratory branch is detected in real time, and when the pressure in the expiratory branch is greater than the first pressure threshold, the expiratory valve is opened to release the pressure, so that the harm to the patient due to the overhigh airway pressure is avoided, and the safety of the device is improved.
It should be noted that, if the photoacoustic imaging method is implemented in the form of a software functional module and sold or used as a separate product, it may be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof that contribute to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.
Accordingly, an embodiment of the present application further provides a computer storage medium having stored thereon computer-executable instructions, which when executed by a processor, implement the steps of the control method of a ventilation apparatus provided in the above-mentioned embodiment.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of a unit is only one logical function division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for enabling a computing device (which may be a personal computer, a server, or a network device) to execute all or part of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (20)
- An aeration device, characterized in that it comprises: drive module, breathing circuit and 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 comprises an inspiration branch and an expiration branch; the inspiration branch is provided with an inspiration valve, and the expiration branch is provided with an expiration valve;and the ventilation control module controls the expiration valve to be closed and the inspiration valve to be opened when the double-tube oxygen therapy mode is adopted, and oxygen-enriched gas is output through the inspiration branch.
- The ventilation apparatus of claim 1, wherein the breathing circuit further comprises at least one of a pressure measurement module disposed in the inspiratory limb and/or the expiratory limb for detecting a pressure in the inspiratory limb and/or the expiratory limb, and a flow rate measurement module disposed in the expiratory limb; the flow rate measuring module is used for detecting the gas flow rate in the expiration branch.
- The ventilation apparatus of claim 2, wherein the pressure measurement module is disposed at least in the expiratory limb, and wherein the ventilation control module opens the expiratory valve and maintains the pressure in the expiratory limb less than or equal to the first pressure threshold when the pressure measurement module detects that the third pressure in the expiratory limb is greater than the first pressure threshold during the oxygen therapy.
- The ventilator of claim 3 further comprising an alarm module and an output module, wherein:the alarm module sends alarm information to the output module when the third pressure of the expiration branch detected by the pressure measurement module is greater than a second pressure threshold;and the output module outputs the alarm information after receiving the alarm information sent by the alarm module.
- The ventilation apparatus of any one of claims 1 to 4, wherein the ventilation control module outputs oxygen-enriched gas to the patient via the inspiratory branch in the single-tube oxygen therapy mode.
- The ventilator of claim 5 further comprising a processing module;and the processing module determines that the current oxygen therapy mode is a double-tube oxygen therapy mode or a single-tube oxygen therapy mode according to the pressure change of the inspiration branch or the expiration branch detected by the pressure measuring module and/or the flow rate change of the expiration branch detected by the flow rate measuring module under the condition that the expiration valve is opened and closed.
- The ventilation apparatus according to claim 6, wherein the processing module obtains a first pressure of the inspiratory branch or the expiratory branch detected by the pressure measurement module when the expiratory valve is open, and obtains a second pressure of the inspiratory branch or the expiratory branch detected by the pressure measurement module when the expiratory valve is closed;if a first variation between the first pressure and the second pressure meets a first preset condition, the processor determines that the oxygen therapy mode in which the ventilator is currently located is a double-tube oxygen therapy mode;and if the first variation does not meet the first preset condition, the processor determines that the current oxygen therapy mode of the ventilator is a single-tube oxygen therapy mode.
- The ventilation apparatus according to claim 6 or 7, wherein the processing module obtains a first flow rate of the expiratory limb detected by the flow rate measurement module when the expiratory valve is open, and obtains a second flow rate of the expiratory limb detected by the flow rate measurement module when the expiratory valve is closed;if a second change amount between the first flow rate and the second flow rate meets a second preset condition, the processor determines that the oxygen therapy mode in which the ventilator is currently located is a double-tube oxygen therapy mode;and if the second variation does not meet the second preset condition, the processor determines that the current oxygen therapy mode of the ventilator is a single-tube oxygen therapy mode.
- The ventilator according to claim 8, wherein if the first variation satisfies the first preset condition or the second variation satisfies the second preset condition, the processor determines that the oxygen therapy mode in which the ventilator is currently located is a dual-tube oxygen therapy mode;and if the first variation does not meet the first preset condition and the second variation does not meet the second preset condition, the processor determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
- The ventilator of any of the preceding claims 6, wherein the output module is further configured to output a display of the current oxygen therapy mode of the ventilator.
- A control method of a ventilator, applied to a ventilator, the ventilator comprising at least: a receiving module, a driving module, a breathing circuit and a ventilation control module, wherein the method comprises:the receiving module receives an instruction of starting an oxygen therapy mode;when the received instruction for starting the oxygen therapy mode is to start the double-tube oxygen therapy mode, the ventilation control module controls an exhalation valve of the ventilation device to be closed, controls an inhalation valve of the ventilation device to be opened, and controls the driving module to output oxygen-enriched gas through an inhalation branch in the breathing circuit.
- The method of claim 11, the ventilator further comprising a processing module, wherein after the receiving module receives the instruction to turn on the oxygen therapy mode, the method further comprises:the ventilation control module controls the exhalation valve to open, and the processing module acquires a first oxygen therapy parameter of the ventilation apparatus;the ventilation control module controls an exhalation valve of the ventilation device to close, and the processing module acquires a second oxygen therapy parameter of the ventilation device;the processing module determines an oxygen therapy mode in which the ventilator is currently located based on the first oxygen therapy parameter and the second oxygen therapy parameter.
- The method of claim 12, wherein the first oxygen therapy parameter comprises a first pressure of an inspiratory limb or an expiratory limb, the second oxygen therapy parameter comprises a second pressure of the inspiratory limb or the expiratory limb, and the processing module determines the current oxygen therapy mode of the ventilator according to the first oxygen therapy parameter and the second oxygen therapy parameter, comprising:if a first variation between the first pressure and the second pressure meets a first preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode;and if the first variation does not meet the first preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
- The method of claim 12, wherein the first oxygen therapy parameter comprises a first flow rate of an expiratory limb and the second oxygen therapy parameter comprises a second flow rate of the expiratory limb, and the processing module determines the current oxygen therapy mode of the ventilator based on the first oxygen therapy parameter and the second oxygen therapy parameter, respectively, comprising:if a second variation between the first flow rate and the second flow rate meets a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode;and if the second variation does not meet the second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
- The method of claim 12, wherein the first oxygen therapy parameter comprises a first pressure of an inspiratory limb or an expiratory limb and a first flow rate of an expiratory limb, and the second oxygen therapy parameter comprises a second pressure of an inspiratory limb or an expiratory limb and a second flow rate of an expiratory limb, and the processing module determines an oxygen therapy mode currently being placed by the ventilator according to the first oxygen therapy parameter and the second oxygen therapy parameter, respectively, comprising:if a first variation between the first pressure and the second pressure meets a first preset condition or a second variation between the first flow rate and the second flow rate meets a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a double-tube oxygen therapy mode;and if the first variation does not meet a first preset condition and the second variation does not meet a second preset condition, the processing module determines that the current oxygen therapy mode of the ventilation device is a single-tube oxygen therapy mode.
- The method according to any one of claims 11 to 14, wherein after the ventilation control module controls an exhalation valve of the ventilation apparatus to close if the oxygen therapy mode in which the ventilation apparatus is currently in is a dual-tube oxygen therapy mode, the method further comprises:the processing module acquires a current third pressure of the ventilator;if the third pressure is greater than a first pressure threshold, the ventilation control module controls the exhalation valve to open to maintain the pressure of the exhalation limb of the ventilator less than or equal to the first pressure threshold.
- The method of claim 16, the ventilator further comprising an alarm module and an output module, the method further comprising:when the third pressure of the expiration branch detected by the pressure measurement module is greater than a second pressure threshold, the alarm module sends alarm information to the output module;and the output module outputs the alarm information after receiving the alarm information sent by the alarm module.
- The method according to any one of claims 11 to 15, further comprising:the output module outputs the current oxygen therapy mode of the ventilation device.
- The method as recited in claim 11, wherein said method further comprises:when the received instruction for starting 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 inspiration branch.
- A computer storage medium, in which a control program of a ventilator is stored, which when executed by a processor, implements the steps of the control method of a ventilator according to any one of claims 11 to 19.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2018/125064 WO2020133274A1 (en) | 2018-12-28 | 2018-12-28 | Ventilation device and control method therefor, and computer storage medium |
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| CN112955202A true CN112955202A (en) | 2021-06-11 |
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