CN118059361A - Breathing machine, control method and control device thereof, electronic equipment and storage medium - Google Patents
Breathing machine, control method and control device thereof, electronic equipment and storage medium Download PDFInfo
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Classifications
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
- A61M16/022—Control means therefor
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- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
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Abstract
The invention relates to a breathing machine, a control method, a control device, electronic equipment and a storage medium thereof, wherein the breathing machine comprises a sensor and a controller, and the control method comprises the following steps: collecting a first output pressure value and a first output flow value of the breathing machine through a sensor; determining, by the controller, a first pressure value resulting from respiratory muscle contraction based on the first output pressure value and the first output flow value; the output pressure and/or output flow of the ventilator is regulated by the controller according to the first pressure value. Therefore, the method determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure and output flow of the breathing machine acquired in real time, and adjusts the output pressure and/or output flow of the breathing machine in real time according to the pressure value generated by the respiratory muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and the protective ventilation of the lung and diaphragm is realized.
Description
Technical Field
The present invention relates to the technical field of medical devices, and in particular, to a ventilator, a control method, a control device, an electronic device, and a storage medium thereof.
Background
In modern clinical medicine, a respirator is used as an effective means capable of replacing autonomous ventilation by manpower, is widely used for respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation, and occupies a very important position in modern medicine. The breathing machine is a medical device which can prevent and treat respiratory failure, reduce complications, save and prolong the life of patients.
In the practical development of ventilator technology, although ventilators are key life support medical devices, they exhibit powerful ventilatory support capabilities in various situations, saving the lives of a large number of patients. However, in actual operation, the control strategy is unsuitable, so that the whole operation effect of the breathing machine is affected, and the protective ventilation of the lung and diaphragm can not be realized.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
Therefore, a first object of the present invention is to provide a method for controlling a ventilator, which determines a pressure value generated by corresponding respiratory muscle contraction according to an output pressure value and an output flow value of the ventilator acquired in real time, and adjusts an output pressure and/or an output flow of the ventilator in real time according to the pressure value generated by the respiratory muscle contraction determined in real time, so that the ventilator can better exert an overall operation effect, and realize protective ventilation of the lungs and diaphragm.
A second object of the present invention is to provide a control device for a ventilator.
A third object of the present invention is to propose a ventilator.
A fourth object of the present invention is to propose an electronic device.
A fifth object of the present invention is to propose a computer readable storage medium.
A sixth object of the invention is to propose a computer programme product.
To achieve the above object, an embodiment of a first aspect of the present invention provides a control method of a ventilator, the ventilator including a sensor and a controller, the control method including: collecting a first output pressure value and a first output flow value of the ventilator by the sensor; determining, by the controller, a first pressure value resulting from respiratory muscle contraction based on the first output pressure value and the first output flow value; and adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value through the controller.
According to the control method of the breathing machine, the first output pressure value and the first output flow value of the breathing machine are acquired through the sensor, the first pressure value generated by respiratory muscle contraction is determined through the controller according to the first output pressure value and the first output flow value, and the output pressure and/or the output flow of the breathing machine are adjusted according to the first pressure value. Therefore, the method determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time, and adjusts the output pressure and/or the output flow of the breathing machine according to the pressure value generated by the respiratory muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and realize the protective ventilation of the lung and the diaphragm.
In addition, the control method of the ventilator provided by the embodiment of the first aspect of the present invention may further have the following additional technical features:
according to one embodiment of the invention, adjusting, by the controller, the output pressure and output flow of the ventilator according to the first pressure value comprises:
Acquiring, by the controller, a first duration in which the first pressure value is greater than or equal to a first upper limit value for a set respiratory muscle contraction generating pressure range, if the first pressure value is greater than or equal to the first upper limit value;
and under the condition that the first duration is longer than or equal to a first set duration, the controller carries out multiple-time heightening treatment on the output pressure and the output flow of the breathing machine.
According to one embodiment of the present invention, after the multiple times of the process of adjusting the output pressure and the output flow rate of the ventilator, the method further includes:
acquiring the cross-lung pressure and/or the cross-lung driving pressure of the subject using the breathing machine subjected to the multiple-time heightening treatment through the controller;
And under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet a first set condition, the controller is used for adjusting the output pressure and the output flow of the breathing machine after the multiple times of height adjustment.
According to an embodiment of the present invention, the first setting condition includes: the cross-lung pressure is greater than or equal to a second upper limit value of a set cross-lung pressure range, and/or the cross-lung driving pressure is greater than or equal to a third upper limit value of the set cross-lung driving pressure range;
Correspondingly, the readjusting the output pressure and the output flow of the breathing machine after the plurality of times of heightening treatment comprises the following steps:
And restoring the output pressure of the breathing machine after the multiple heightening treatment to the output pressure of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process by the controller, and restoring the output flow of the breathing machine after the multiple heightening treatment to the output flow of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process.
According to one embodiment of the invention, the method further comprises:
acquiring a second output pressure value and a second output flow value of the recovered breathing machine acquired by the sensor through the controller;
determining, by the controller, a second pressure value resulting from respiratory muscle contraction based on the second output pressure value and the second output flow value;
Acquiring, by the controller, a second duration in which the second pressure value is greater than or equal to the first upper limit value, if the second pressure value is greater than or equal to the first upper limit value;
and under the condition that the second duration is longer than or equal to a second set duration, the controller controls the alarm of the breathing machine to send out a first alarm signal.
According to one embodiment of the present invention, after the controller obtains the cross-lung pressure and/or the cross-lung driving pressure of the subject using the ventilator after the multiple-time elevation treatment, the method further comprises:
under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet a second set condition, the controller controls the output pressure of the breathing machine to keep the output pressure of the breathing machine after the multiple-time heightening treatment unchanged, and controls the output flow of the breathing machine to keep the output flow of the breathing machine after the multiple-time heightening treatment unchanged;
Wherein the second setting condition is: the cross-lung pressure is in a set cross-lung pressure range and the cross-lung drive pressure is in a set cross-lung drive pressure range.
According to one embodiment of the invention, adjusting, by the controller, the output pressure and output flow of the ventilator according to the first pressure value comprises:
acquiring, by the controller, a third duration in which the first pressure value is less than or equal to a first lower limit value for a set respiratory muscle contraction generating pressure range;
And under the condition that the third duration time is longer than or equal to a third set duration time, the controller performs multiple times of lowering processing on the output pressure and the output flow of the breathing machine.
According to one embodiment of the present invention, after the multiple times of the process of reducing the output pressure and the output flow rate of the ventilator, the method further includes:
acquiring a third output pressure value and a third output flow value of the breathing machine after the plurality of times of lowering processing acquired by the sensor through the controller;
Determining, by the controller, a third pressure value resulting from respiratory muscle contraction based on the third output pressure value and the third output flow value;
acquiring, by the controller, minute ventilation, respiratory rate, and end-tidal carbon dioxide of the subject using the multi-turn down processed ventilator if the trend of change in the third pressure value is not a stepwise increasing;
And under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet a third set condition, the controller is used for readjusting the output pressure and the output flow of the breathing machine after the plurality of times of reduction treatment.
According to an embodiment of the present invention, the third setting condition includes at least one of: the minute ventilation is smaller than or equal to a second lower limit value of a set minute ventilation range, the respiratory frequency exceeds the set respiratory frequency range, and the end-tidal carbon dioxide is larger than or equal to a fourth upper limit value of the set end-tidal carbon dioxide range;
correspondingly, the readjusting the output pressure and the output flow of the breathing machine after the plurality of times of the turndown treatment comprises the following steps:
Acquiring, by the controller, a fourth duration of minute ventilation, the respiratory rate, and the end-tidal carbon dioxide satisfying a third set condition if the minute ventilation, the respiratory rate, and the end-tidal carbon dioxide satisfy the third set condition;
And under the condition that the fourth duration is longer than or equal to a fourth set duration, the controller restores the output pressure of the breathing machine after the multiple lowering treatment to the output pressure of the breathing machine during the last lowering treatment before the last lowering treatment in the multiple lowering treatment process, restores the output flow of the breathing machine after the multiple lowering treatment to the output flow of the breathing machine during the last lowering treatment before the last lowering treatment in the multiple lowering treatment process, and controls an alarm of the breathing machine to send a second alarm signal.
According to one embodiment of the present invention, after obtaining, by the controller, the minute ventilation, the respiratory rate, and the end-tidal carbon dioxide of the subject using the ventilator after the multiple turndown process, in a case where the trend of the third pressure value is not stepwise increasing, the method further includes:
Under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet a fourth set condition, the controller controls the output pressure of the breathing machine to keep the output pressure of the breathing machine after the multiple-time lowering treatment unchanged, and controls the output flow of the breathing machine to keep the output flow of the breathing machine after the multiple-time lowering treatment unchanged;
Wherein the fourth setting condition is: the minute ventilation is in a set minute ventilation range and the respiratory rate is in a set respiratory rate range and end tidal carbon dioxide is in a set end tidal carbon dioxide range.
According to one embodiment of the invention, the method further comprises:
And under the condition that the first pressure value is in a set respiratory muscle contraction generating pressure range, the controller controls the output pressure of the breathing machine to keep the first output pressure value unchanged, and controls the output flow of the breathing machine to keep the first output flow unchanged.
To achieve the above object, according to a second aspect of the present invention, there is provided a control device for a ventilator, comprising: the acquisition module is used for acquiring a first output pressure value and a first output flow value of the breathing machine; a determining module for determining a first pressure value resulting from respiratory muscle contraction based on the first output pressure value and the first output flow value; and the adjusting module is used for adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value.
According to the control device of the breathing machine, the first output pressure value and the first output flow value of the breathing machine are obtained through the obtaining module, the first pressure value generated by the contraction of the breathing muscle is determined through the determining module according to the first output pressure value and the first output flow value, and the output pressure and/or the output flow of the breathing machine are adjusted through the adjusting module according to the first pressure value. Therefore, the device determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time, and adjusts the output pressure and/or the output flow of the breathing machine according to the pressure value generated by the respiratory muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and realize the protective ventilation of the lung and the diaphragm.
To achieve the above object, an embodiment of a third aspect of the present invention further provides a ventilator, including: a sensor for acquiring a first output pressure value and a first output flow value of the ventilator; and the controller is used for determining a first pressure value generated by respiratory muscle contraction according to the first output pressure value and the first output flow value, and adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value.
According to the breathing machine provided by the embodiment of the invention, the first output pressure value and the first output flow value of the breathing machine are acquired through the sensor, the first pressure value generated by respiratory muscle contraction is determined through the controller according to the first output pressure value and the first output flow value, and the output pressure and/or the output flow of the breathing machine are adjusted according to the first pressure value. Therefore, the breathing machine determines the pressure value generated by corresponding breathing muscle contraction according to the output pressure value and the output flow value acquired in real time, and adjusts the output pressure and/or the output flow in real time according to the pressure value generated by the breathing muscle contraction determined in real time, so that the operation effect of the whole breathing machine can be better exerted, and the protective ventilation of the lung and the diaphragm can be realized.
To achieve the above object, an embodiment of a fourth aspect of the present invention further provides an electronic device, including:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of controlling a ventilator as described above.
According to the electronic equipment provided by the embodiment of the invention, by executing the control method of the breathing machine, the corresponding pressure value generated by the breathing muscle contraction is determined according to the output pressure value and the output flow value of the breathing machine acquired in real time, and the output pressure and/or the output flow of the breathing machine is regulated in real time according to the pressure value generated by the breathing muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and the protective ventilation of the lung and diaphragm is realized.
To achieve the above object, an embodiment of a fifth aspect of the present invention further provides a computer-readable storage medium, in which the computer instructions are configured to cause the computer to execute the method for controlling a ventilator described above.
The computer readable storage medium of the embodiment of the invention determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time by executing the control method of the breathing machine, and adjusts the output pressure and/or the output flow of the breathing machine in real time according to the pressure value generated by the respiratory muscle contraction determined in real time, thereby enabling the breathing machine to better exert the operation effect of the whole machine and realizing the protective ventilation of the lung and the diaphragm.
To achieve the above object, a sixth exemplary embodiment of the present invention provides a computer program product, which when executed by an instruction processor in the computer program product, performs the above-mentioned method for controlling a ventilator.
According to the computer program product provided by the embodiment of the invention, through executing the control method of the breathing machine, the corresponding pressure value generated by the breathing muscle contraction is determined according to the output pressure value and the output flow value of the breathing machine acquired in real time, and the output pressure and/or the output flow of the breathing machine is regulated in real time according to the pressure value generated by the breathing muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and the protective ventilation of the lung and diaphragm is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart of a method of controlling a ventilator according to an embodiment of the present invention;
FIG. 2 is a flow chart of a smart ventilation mode of a ventilator according to one embodiment of the present invention;
FIG. 3 is a block schematic diagram of a control device of a ventilator according to an embodiment of the present invention;
fig. 4 is a block schematic diagram of a ventilator according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes a ventilator, a control method, a control device, an electronic apparatus, and a storage medium according to embodiments of the present invention with reference to the accompanying drawings.
In the practical application development of the current ventilator technology, although the ventilator is a key life support device, a strong ventilation support capability is exhibited in various cases, and lives of a large number of patients are saved. However, in actual operation, due to the inappropriateness of the control strategy, the whole operation effect of the breathing machine is affected, or in clinic, the mechanical ventilation patient may cause complications such as lung injury, diaphragm injury and the like related to the breathing machine due to the complex interaction between the spontaneous breathing activity and the breathing machine.
Traditional ventilation modes such as pressure support ventilation can provide basic respiratory support, but due to lack of real-time monitoring of spontaneous respiratory effort of a patient, doctors mainly rely on personal experience and clinical observation when adjusting ventilation parameters, and the adjustment mode relying on subjective judgment often has difficulty in realizing accurate and timely response to respiratory demands of the patient.
Compared with the traditional mode, the novel ventilation strategies such as neural regulation auxiliary ventilation and proportional auxiliary ventilation can monitor and estimate the respiratory effort of a patient in an invasive or noninvasive mode, automatically adjust the ventilation support level according to the change of spontaneous breathing of the patient, and realize dynamic regulation in a single breathing period. The design concept is closer to the physiological breathing mode of the human body, is beneficial to relieving the burden of breathing muscles, reduces the work of breathing, and particularly shows superiority under specific pathological states.
However, it is worth noting that while these ventilation patterns that conform to the patient's respiratory effort are physiologically justified in certain disease scenarios, in other cases, such as when the patient's spontaneous respiratory drive is abnormally high, excessive reliance on these patterns and blindly increased ventilation support may lead to further increases in the pressure of the cross-lung drive, which is closely related to the occurrence of ventilator-related lung injuries, which may exacerbate the lung injury. Therefore, how to scientifically and reasonably apply various ventilation modes in the face of different disease backgrounds, particularly in patients with excessive spontaneous respiratory drive, and realize a protective ventilation strategy which can not only meet the respiratory support requirements of the patients, but also effectively prevent lung and diaphragm injuries, becomes a key problem to be solved in the current clinical practice.
Fig. 1 is a flowchart of a method of controlling a ventilator according to an embodiment of the present invention.
It should be noted that, the ventilator according to the embodiment of the present invention includes a sensor and a controller.
As shown in fig. 1, a control method of a ventilator according to an embodiment of the present invention includes:
s1, acquiring a first output pressure value and a first output flow value of the breathing machine through a sensor.
The sensor can comprise a pressure sensor arranged at an output port of the breathing machine and a flow sensor arranged at the output port of the breathing machine, wherein the output pressure value of the breathing machine is acquired through the pressure sensor arranged at the output port of the breathing machine, and the output flow value of the breathing machine is acquired through the flow sensor arranged at the output port of the breathing machine.
S2, determining a first pressure value generated by respiratory muscle contraction according to the first output pressure value and the first output flow value through the controller.
After the output pressure value and the output flow value of the breathing machine acquired by the sensor are obtained, the controller can be combined with a respiratory system mechanical model to obtain factors such as respiratory system compliance, airway resistance and the like of a subject using the breathing machine, so that resistance and elastic force which are needed to be overcome by respiratory muscles of the subject using the breathing machine during spontaneous breathing are estimated, and the pressure value generated by respiratory muscle contraction of the subject using the breathing machine is determined.
And S3, adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value through the controller.
Step S3 includes the following three realizations:
in a first aspect, the output pressure of the ventilator is regulated by the controller according to the first pressure value.
In a second scheme, the output flow of the breathing machine is regulated by the controller according to the first pressure value.
In a third scheme, the output pressure and the output flow of the breathing machine are regulated by the controller according to the first pressure value.
In order to make the adjustment process of the ventilator more clear to the person skilled in the art, the present invention is described with respect to a third solution, namely a process of adjusting the output pressure and the output flow of the ventilator by means of a controller according to a first pressure value.
After obtaining the first pressure value, the controller determines a relationship between the first pressure value and a first upper limit value of a set respiratory muscle contraction generating pressure range, a first lower limit value of the set respiratory muscle contraction generating pressure range, and executes example one, example two, or example three for each of these three different cases.
Example one:
And under the condition that the first pressure value is larger than or equal to a first upper limit value of a pressure range generated by the set respiratory muscle contraction, acquiring a first duration time of which the first pressure value is larger than or equal to the first upper limit value by the controller, and if the first duration time is larger than or equal to a first set duration time (such as 2 min), performing multiple-time height adjustment processing on the output pressure and the output flow of the breathing machine. It should be noted that, the multiple-time heightening process may be to heighten the output pressure and the output flow of the ventilator according to a set heightening rate (for example, heightening the output pressure and the output flow of the ventilator at intervals of a first set time interval).
And in the process of carrying out multiple times of height adjustment on the output pressure and the output flow of the breathing machine through the controller, if the pressure value generated by the contraction of the breathing muscles is monitored to be in the set pressure range generated by the contraction of the breathing muscles, controlling the output pressure and the output flow of the breathing machine to maintain the output pressure and the output flow of the breathing machine unchanged in the last time of height adjustment treatment in the process of multiple times of height adjustment treatment, and continuously monitoring the pressure value generated by the contraction of the breathing muscles.
After the output pressure and the output flow of the breathing machine are subjected to multiple-time heightening treatment through the controller, the cross-lung pressure and/or the cross-lung driving pressure of the object using the breathing machine subjected to multiple-time heightening treatment are obtained, and the following two different controls are carried out according to the conditions met by the cross-lung pressure and/or the cross-lung driving pressure.
First, under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet the first set condition, the output pressure and the output flow of the breathing machine after the multi-time heightening treatment are regulated again through the controller. Wherein the first setting condition includes: the cross-lung pressure is greater than or equal to a second upper limit value of the set cross-lung pressure range, and/or the cross-lung drive pressure is greater than or equal to a third upper limit value of the set cross-lung drive pressure range. Correspondingly, the process of readjusting the output pressure and the output flow of the breathing machine after the plurality of times of heightening treatment through the controller comprises the following steps: and the output pressure of the breathing machine after the multiple heightening treatment is restored to the output pressure of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process through the controller, and the output flow of the breathing machine after the heightening treatment is restored to the output flow of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process. And then, acquiring a second output pressure value and a second output flow value of the recovered breathing machine through a controller, determining a second pressure value generated by respiratory muscle contraction according to the second output pressure value and the second output flow value, acquiring a second duration time when the second pressure value is greater than or equal to a first upper limit value if the second pressure value is greater than or equal to a first upper limit value, and controlling an alarm of the breathing machine to send out a first alarm signal if the second duration time is greater than or equal to a second set duration time (such as 15 min), wherein the first alarm signal is used for representing an alarm signal of excessively strong respiratory drive of a subject using the breathing machine, and simultaneously controlling a display screen of the breathing machine to send out first prompt information such as searching for a reason of excessively strong respiratory drive of the subject using the breathing machine, and prompting the subject using the breathing machine to increase sedation and analgesia depth, or even using neuromuscular blocking.
Secondly, under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet the second set condition, the output pressure of the breathing machine is controlled by the controller to keep unchanged after the multiple-time heightening treatment, and the output flow of the breathing machine is controlled to keep unchanged after the multiple-time heightening treatment. Wherein, the second setting condition is: the cross-lung pressure is in a set cross-lung pressure range and the cross-lung drive pressure is in a set cross-lung drive pressure range.
Example two:
And under the condition that the first pressure value is smaller than or equal to a first lower limit value of a pressure range generated by the set respiratory muscle contraction, acquiring a third duration time of which the first pressure value is smaller than or equal to the first lower limit value by the controller, and if the third duration time is longer than or equal to a third set duration time (such as 2 min), performing multiple reduction processing on the output pressure and the output flow of the breathing machine. It should be noted that, the multiple-time throttling process may be to perform a throttling process on the output pressure and the output flow of the ventilator according to a set throttling rate (for example, throttling down by a second set step at intervals of a second set time).
After the output pressure and the output flow of the breathing machine are subjected to multiple lowering treatment by the controller, a third output pressure value and a third output flow value of the breathing machine, which are acquired by the sensor after multiple lowering treatment, are acquired, and a third pressure value generated by respiratory muscle contraction is determined according to the third output pressure value and the third output flow value.
Wherein if the trend of the third pressure value is not stepwise increasing (stepwise increasing means that the current pressure value is increased by at least the set pressure value with respect to the last pressure value), the minute ventilation, the respiratory rate, and the end-tidal carbon dioxide of the subject using the ventilator after the multiple-time down-conversion process are acquired, and the following two different controls are performed according to the conditions satisfied by the minute ventilation, the respiratory rate, and the end-tidal carbon dioxide.
First, under the condition that the minute ventilation, the respiratory rate and the end-tidal carbon dioxide meet the third set conditions, the output pressure and the output flow of the breathing machine after the multiple-time reduction treatment are regulated again through the controller. Wherein the third setting condition includes at least one of: the minute ventilation is less than or equal to the second lower limit of the set minute ventilation range, the respiratory rate exceeds the set respiratory rate range (respiratory rate exceeding the set respiratory rate range means respiratory rate greater than or equal to the upper limit of the set respiratory rate range, or respiratory rate less than or equal to the lower limit of the set respiratory rate range), and the end-tidal carbon dioxide is greater than or equal to the fourth upper limit of the set end-tidal carbon dioxide range. Correspondingly, the process of readjusting the output pressure and the output flow of the breathing machine after the plurality of times of reducing treatment by the controller comprises the following steps: under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet the third set conditions, acquiring a fourth duration of the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meeting the third set conditions, and under the condition that the fourth duration is longer than or equal to the fourth set duration (such as 2 min), restoring the output pressure of the ventilator after the multiple lowering treatment to the output pressure of the ventilator at the time of the last lowering treatment before the last lowering treatment in the multiple lowering treatment processes, restoring the output flow of the ventilator after the multiple lowering treatment processes to the output flow of the ventilator at the time of the last lowering treatment before the last lowering treatment in the multiple lowering treatment processes, and controlling the alarm of the ventilator to send a second alarm signal, wherein the second alarm signal is used for representing an alarm signal of the reduction of the respiratory drive of a subject using the ventilator.
Secondly, the controller is used for controlling the output pressure of the breathing machine to keep unchanged after the multiple-time lowering treatment when the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet a fourth set condition, and controlling the output flow of the breathing machine to keep unchanged after the multiple-time lowering treatment; wherein, the fourth setting condition is: the minute ventilation is in the set minute ventilation range and the respiratory rate is in the set respiratory rate range and the end tidal carbon dioxide is in the set end tidal carbon dioxide range.
Example three:
Under the condition that the first pressure value is in a pressure range generated by the set respiratory muscle contraction, the controller controls the output pressure of the breathing machine to maintain the first output pressure value unchanged, controls the output flow of the breathing machine to maintain the first output flow unchanged, namely maintains the current output pressure value and the current output flow value unchanged, and continuously monitors the pressure value generated by the respiratory muscle contraction.
Therefore, the control method of the breathing machine determines the pressure value generated by corresponding breathing muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time, and adjusts the output pressure and/or the output flow of the breathing machine according to the pressure value generated by the breathing muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and realize the protective ventilation of the lung and the diaphragm.
In order to make the present invention more clearly understood by those skilled in the art, the intelligent ventilation mode of the ventilator of the present invention will be described with reference to fig. 2.
As shown in fig. 2, the intelligent ventilation mode of the ventilator according to the embodiment of the present invention includes:
S201, manually setting the setting range including but not limited to the following parameters: pressure Pmus, minute ventilation, respiratory rate and end-tidal carbon dioxide generated by pressure and/or respiratory muscle contraction driven across the lungs.
It should be noted that, the following steps S202 to S213 are all executed by the controller.
S202, continuously sampling the output pressure and the output flow of the breathing machine at high frequency, determining Pmus and updating in real time.
It should be noted that, the steps S203 to S207 are executed when Pmus is greater than or equal to the first upper limit value of the Pmus range; step S208-step S212 are executed when Pmus is less than or equal to the first lower limit value of the Pmus range; step S213 is performed when Pmus is in the set Pmus range.
S203, if Pmus is greater than or equal to the first upper limit value of the Pmus range, and the duration is longer than or equal to the first set duration (e.g. 2 min), step S204 is executed.
S204, the output pressure and the output flow rate are regulated up. If the Pmus determined according to the adjusted output pressure and output flow is within the set Pmus range, returning to execute step S202; if Pmus is greater than or equal to the upper limit value of the set Pmus range, which is determined according to the output pressure and the output flow after the adjustment, step S205 is executed.
S205, obtaining a cross-lung pressure and/or a cross-lung driving pressure. If the cross-lung pressure and the cross-lung driving pressure are both in the corresponding set ranges, namely safe, returning to execute the step S202; if the cross-lung pressure and/or the cross-lung driving pressure are not in the corresponding set range, i.e. unsafe, step S206 is performed.
S206, restoring the output pressure and the output flow of the breathing machine to the output pressure and the output flow of the last-last breathing machine in the process of multiple heightening, determining the current Pmus, and executing the step S207 if the Pmus is more than or equal to the first upper limit value of the set Pmus range and continuously more than or equal to the second set time period (such as 15 min).
S207, an alarm for controlling the breathing machine sends out a first alarm signal, a display screen for controlling the breathing machine sends out first prompt information such as searching for the reason of the excessively strong breathing drive of a subject using the breathing machine, and prompts to increase the sedation and analgesia depth of the subject using the breathing machine, and even uses a neuromuscular blocking agent.
S208, if Pmus is less than or equal to the first lower limit value of the Pmus range, and the duration is longer than or equal to the third set duration (e.g. 2 min), step S209 is executed.
S209, regulating down the output pressure and the output flow. If the Pmus determined according to the output pressure and the output flow of the breathing machine after the adjustment is in the set Pmus range, returning to execute step S213; if Pmus is less than or equal to the first lower limit value of the set Pmus range, which is determined according to the output pressure and the output flow rate of the breathing machine after the adjustment, step S210 is performed.
S210, acquiring minute ventilation, respiratory rate and end-tidal carbon dioxide. If the minute ventilation, the respiratory rate and the end-tidal carbon dioxide are all within the corresponding set ranges, i.e. safe, returning to execute the step S202; if at least one of minute ventilation, respiratory rate and end-tidal carbon dioxide is not within the corresponding set range, i.e., unsafe, and the duration is greater than or equal to the fourth set duration (e.g., 2 minutes), then step S211 is performed.
S211, recovering the output pressure and the output flow of the breathing machine to the output pressure and the output flow of the last-last breathing machine in the multiple-time reduction treatment process.
S212, controlling an alarm of the breathing machine to send out a second alarm signal, and controlling a display screen of the breathing machine to display second prompt information such as searching for a reason for reducing the breathing drive of a subject using the breathing machine.
S213, pmus is in the set Pmus range, and the step S202 is executed back.
In summary, according to the control method of the ventilator according to the embodiment of the present invention, the first output pressure value and the first output flow value of the ventilator are collected through the sensor, the first pressure value generated by the respiratory muscle contraction is determined through the controller according to the first output pressure value and the first output flow value, and the output pressure and/or the output flow of the ventilator are adjusted according to the first pressure value. Therefore, the method determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time, and adjusts the output pressure and/or the output flow of the breathing machine according to the pressure value generated by the respiratory muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and realize the protective ventilation of the lung and the diaphragm.
Fig. 3 is a block schematic diagram of a control device of a ventilator according to an embodiment of the present invention.
As shown in fig. 3, a control device 300 of a ventilator according to an embodiment of the present invention includes: an acquisition module 310, a determination module 320, and an adjustment module 330.
Wherein the obtaining module 310 is configured to obtain a first output pressure value and a first output flow value of the ventilator. The determining module 320 is configured to determine a first pressure value generated by respiratory muscle contraction according to the first output pressure value and the first output flow value. The adjusting module 330 is configured to adjust the output pressure and the output flow of the ventilator according to the first pressure value.
It should be noted that the determining module and the adjusting module may be integrated in the controller, and the determining module and the adjusting module complete the content to be executed by the controller.
It should be further noted that, for details not disclosed in the control device of the ventilator in the embodiment of the present invention, please refer to details disclosed in the control method of the ventilator in the embodiment of the present invention, and detailed descriptions thereof are omitted herein.
According to the control device of the breathing machine, the first output pressure value and the first output flow value of the breathing machine are obtained through the obtaining module, the first pressure value generated by the contraction of the breathing muscle is determined through the determining module according to the first output pressure value and the first output flow value, and the output pressure and/or the output flow of the breathing machine are adjusted through the adjusting module according to the first pressure value. Therefore, the device determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time, and adjusts the output pressure and/or the output flow of the breathing machine according to the pressure value generated by the respiratory muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and realize the protective ventilation of the lung and the diaphragm.
Fig. 4 is a block schematic diagram of a ventilator according to an embodiment of the present invention.
As shown in fig. 4, a ventilator 400 according to an embodiment of the present invention includes: a sensor 410 and a controller 420.
Wherein the sensor 410 is configured to acquire a first output pressure value and a first output flow value of the ventilator. The controller 420 is configured to determine a first pressure value generated by respiratory muscle contraction according to the first output pressure value and the first output flow value, and adjust the output pressure and/or the output flow of the ventilator according to the first pressure value.
According to one embodiment of the invention, the controller 420, when adjusting the output pressure and output flow of the ventilator according to the first pressure value, includes:
Under the condition that the first pressure value is larger than or equal to a first upper limit value of a pressure range generated by the set respiratory muscle contraction, a first duration time that the first pressure value is larger than or equal to the first upper limit value is obtained, and under the condition that the first duration time is larger than or equal to a first set duration time, the output pressure and the output flow of the breathing machine are subjected to multiple-time height adjustment treatment.
According to one embodiment of the present invention, after the controller 420 performs the multiple-time process of increasing the output pressure and the output flow rate of the ventilator, the controller is further configured to:
Acquiring the cross-lung pressure and/or the cross-lung driving pressure of the object using the breathing machine subjected to the multiple-time heightening treatment, and re-adjusting the output pressure and the output flow of the breathing machine subjected to the multiple-time heightening treatment under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet a first set condition.
According to one embodiment of the present invention, the first setting condition includes: the cross-lung pressure is greater than or equal to a second upper limit value of the set cross-lung pressure range, and/or the cross-lung driving pressure is greater than or equal to a third upper limit value of the set cross-lung driving pressure range;
accordingly, when the controller 420 is configured to readjust the output pressure and the output flow of the ventilator after the multiple-time adjustment process, the method includes:
And restoring the output pressure of the breathing machine after the multiple heightening treatment to the output pressure of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process, and restoring the output flow of the breathing machine after the multiple heightening treatment to the output flow of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process.
According to one embodiment of the invention, the controller 420 is further configured to:
Acquiring a second output pressure value and a second output flow value of the recovered breathing machine, which are acquired by the sensor 410, determining a second pressure value generated by respiratory muscle contraction according to the second output pressure value and the second output flow value, acquiring a second duration time when the second pressure value is greater than or equal to the first upper limit value under the condition that the second pressure value is greater than or equal to the first upper limit value, and controlling the breathing machine to send out a first alarm signal if the second duration time is greater than or equal to a second set duration time.
According to one embodiment of the invention, the controller 420 is configured to obtain the cross-lung pressure and/or the cross-lung driving pressure of the subject using the ventilator after multiple upregulation processes, and then further configured to:
Under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet the second set condition, controlling the output pressure of the breathing machine to maintain the output pressure of the breathing machine after the multiple-time heightening treatment unchanged, and controlling the output flow of the breathing machine to maintain the output flow of the breathing machine after the multiple-time heightening treatment unchanged;
Wherein, the second setting condition is: the cross-lung pressure is in a set cross-lung pressure range and the cross-lung drive pressure is in a set cross-lung drive pressure range.
According to one embodiment of the invention, the controller 420, when adjusting the output pressure and output flow of the ventilator according to the first pressure value, includes:
and under the condition that the first pressure value is smaller than or equal to a first lower limit value of a pressure range generated by the set respiratory muscle contraction, acquiring a third duration time of which the first pressure is smaller than or equal to the first lower limit value, and if the third duration time is longer than or equal to a third set duration time, performing multiple times of regulating down treatment on the output pressure and the output flow of the breathing machine.
According to one embodiment of the present invention, after the controller 420 performs the multiple-time down process on the output pressure and output flow of the ventilator, the controller is further configured to:
The acquiring sensor 410 acquires a third output pressure value and a third output flow value of the ventilator after the multiple-time reduction processing, determines a third pressure value generated by respiratory muscle contraction according to the third output pressure value and the third output flow value, acquires minute ventilation, respiratory frequency and end-tidal carbon dioxide of a subject using the ventilator if the variation trend of the third pressure value is not gradually increased, and readjusts the output pressure and output flow of the ventilator after the multiple-time reduction processing under the condition that the minute ventilation, respiratory frequency and end-tidal carbon dioxide meet a third set condition.
According to one embodiment of the invention, the third setting condition comprises at least one of: a second lower limit value of minute ventilation less than or equal to a set minute ventilation range, a fourth upper limit value of breath frequency exceeding the set breath frequency range and end-tidal carbon dioxide greater than or equal to the set end-tidal carbon dioxide range;
Accordingly, when the controller 420 is configured to readjust the output pressure and the output flow rate of the ventilator after the multiple turndown process, the method includes:
Under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet the third set conditions, the output pressure of the breathing machine after the multiple lowering treatment is restored to the output pressure of the breathing machine during the last lowering treatment before the last lowering treatment in the multiple lowering treatment process, the output flow of the breathing machine after the multiple lowering treatment is restored to the output flow of the breathing machine during the last lowering treatment before the last lowering treatment in the multiple lowering treatment process, and an alarm of the breathing machine is controlled to send a second alarm signal.
According to one embodiment of the present invention, the controller 420 is configured to obtain minute ventilation, respiratory rate, and end-tidal carbon dioxide of the subject using the ventilator after multiple turndown treatments if the trend of the third pressure value is not stepwise increasing, and further configured to:
Under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet the fourth set condition, controlling the output pressure of the breathing machine to maintain the output pressure of the breathing machine unchanged after the repeated lowering treatment, and controlling the output flow of the breathing machine to maintain the output flow of the breathing machine unchanged after the repeated lowering treatment;
Wherein, the fourth setting condition is: the minute ventilation is in the set minute ventilation range and the respiratory rate is in the set respiratory rate range and the end tidal carbon dioxide is in the set end tidal carbon dioxide range.
According to one embodiment of the invention, the controller 420 is further configured to:
And under the condition that the first pressure value is in a set respiratory muscle contraction generating pressure range, controlling the output pressure of the breathing machine to maintain the first output pressure value unchanged, and controlling the output flow of the breathing machine to maintain the first output flow unchanged.
It should be noted that, for details not disclosed in the ventilator according to the embodiment of the present invention, please refer to details disclosed in the control method of the ventilator according to the embodiment of the present invention, and details thereof are not described herein.
According to the breathing machine provided by the embodiment of the invention, the first output pressure value and the first output flow value of the breathing machine are acquired through the sensor, the first pressure value generated by respiratory muscle contraction is determined through the controller according to the first output pressure value and the first output flow value, and the output pressure and/or the output flow of the breathing machine are adjusted according to the first pressure value. Therefore, the breathing machine determines the pressure value generated by corresponding breathing muscle contraction according to the output pressure value and the output flow value acquired in real time, and adjusts the output pressure and/or the output flow in real time according to the pressure value generated by the breathing muscle contraction determined in real time, so that the operation effect of the whole breathing machine can be better exerted, and the protective ventilation of the lung and the diaphragm can be realized.
Based on the embodiment, the invention further provides electronic equipment.
The electronic equipment of the embodiment of the invention comprises: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of controlling a ventilator as described above.
According to the electronic equipment provided by the embodiment of the invention, by executing the control method of the breathing machine, the corresponding pressure value generated by the breathing muscle contraction is determined according to the output pressure value and the output flow value of the breathing machine acquired in real time, and the output pressure and/or the output flow of the breathing machine is regulated in real time according to the pressure value generated by the breathing muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and the protective ventilation of the lung and diaphragm is realized.
Based on the above embodiments, the present invention also proposes a computer-readable storage medium.
Computer instructions in a computer-readable storage medium according to an embodiment of the present invention are configured to cause a computer to execute the above-described control method of a ventilator.
The computer readable storage medium of the embodiment of the invention determines the pressure value generated by corresponding respiratory muscle contraction according to the output pressure value and the output flow value of the breathing machine acquired in real time by executing the control method of the breathing machine, and adjusts the output pressure and/or the output flow of the breathing machine in real time according to the pressure value generated by the respiratory muscle contraction determined in real time, thereby enabling the breathing machine to better exert the operation effect of the whole machine and realizing the protective ventilation of the lung and the diaphragm.
Based on the above embodiments, the present invention also proposes a computer program product.
In an embodiment of the invention, the above-described method of controlling a ventilator is performed when an instruction processor in a computer program product executes.
According to the computer program product provided by the embodiment of the invention, through executing the control method of the breathing machine, the corresponding pressure value generated by the breathing muscle contraction is determined according to the output pressure value and the output flow value of the breathing machine acquired in real time, and the output pressure and/or the output flow of the breathing machine is regulated in real time according to the pressure value generated by the breathing muscle contraction determined in real time, so that the breathing machine can better exert the operation effect of the whole machine, and the protective ventilation of the lung and diaphragm is realized.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (15)
1. A method of controlling a ventilator, the ventilator comprising a sensor and a controller, the method comprising:
Collecting a first output pressure value and a first output flow value of the ventilator by the sensor;
Determining, by the controller, a first pressure value resulting from respiratory muscle contraction based on the first output pressure value and the first output flow value;
And adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value through the controller.
2. The method of claim 1, wherein adjusting, by the controller, the output pressure and output flow of the ventilator according to the first pressure value comprises:
Acquiring, by the controller, a first duration in which the first pressure value is greater than or equal to a first upper limit value for a set respiratory muscle contraction generating pressure range, if the first pressure value is greater than or equal to the first upper limit value;
and under the condition that the first duration is longer than or equal to a first set duration, the controller carries out multiple-time heightening treatment on the output pressure and the output flow of the breathing machine.
3. The method of claim 2, wherein after the multiple upregulating of the output pressure and output flow of the ventilator, further comprising:
acquiring the cross-lung pressure and/or the cross-lung driving pressure of the subject using the breathing machine subjected to the multiple-time heightening treatment through the controller;
And under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet a first set condition, the controller is used for adjusting the output pressure and the output flow of the breathing machine after the multiple times of height adjustment.
4. A method according to claim 3, wherein the first set of conditions comprises: the cross-lung pressure is greater than or equal to a second upper limit value of a set cross-lung pressure range, and/or the cross-lung driving pressure is greater than or equal to a third upper limit value of the set cross-lung driving pressure range;
Correspondingly, the readjusting the output pressure and the output flow of the breathing machine after the plurality of times of heightening treatment comprises the following steps:
And restoring the output pressure of the breathing machine after the multiple heightening treatment to the output pressure of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process by the controller, and restoring the output flow of the breathing machine after the multiple heightening treatment to the output flow of the breathing machine during the last heightening treatment before the last heightening treatment in the multiple heightening treatment process.
5. The method according to claim 4, wherein the method further comprises:
acquiring a second output pressure value and a second output flow value of the recovered breathing machine acquired by the sensor through the controller;
determining, by the controller, a second pressure value resulting from respiratory muscle contraction based on the second output pressure value and the second output flow value;
Acquiring, by the controller, a second duration in which the second pressure value is greater than or equal to the first upper limit value, if the second pressure value is greater than or equal to the first upper limit value;
and under the condition that the second duration is longer than or equal to a second set duration, the controller controls the alarm of the breathing machine to send out a first alarm signal.
6. The method of claim 3, further comprising, after the controller obtains the cross-lung pressure and/or the cross-lung driving pressure of the subject using the ventilator after the multiple-step up process:
under the condition that the cross-lung pressure and/or the cross-lung driving pressure meet a second set condition, the controller controls the output pressure of the breathing machine to keep the output pressure of the breathing machine after the multiple-time heightening treatment unchanged, and controls the output flow of the breathing machine to keep the output flow of the breathing machine after the multiple-time heightening treatment unchanged;
Wherein the second setting condition is: the cross-lung pressure is in a set cross-lung pressure range and the cross-lung drive pressure is in a set cross-lung drive pressure range.
7. The method of claim 1, wherein adjusting, by the controller, the output pressure and output flow of the ventilator according to the first pressure value comprises:
acquiring, by the controller, a third duration in which the first pressure value is less than or equal to a first lower limit value for a set respiratory muscle contraction generating pressure range;
And under the condition that the third duration time is longer than or equal to a third set duration time, the controller performs multiple times of lowering processing on the output pressure and the output flow of the breathing machine.
8. The method of claim 7, wherein after the multiple downscaling of the output pressure and output flow of the ventilator, further comprising:
Acquiring a third output pressure value and a third output flow value of the breathing machine which are acquired by the sensor after a plurality of times of lowering treatment through the controller;
Determining, by the controller, a third pressure value resulting from respiratory muscle contraction based on the third output pressure value and the third output flow value;
acquiring, by the controller, minute ventilation, respiratory rate, and end-tidal carbon dioxide of the subject using the multi-turn down processed ventilator if the trend of change in the third pressure value is not a stepwise increasing;
And under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet a third set condition, the controller is used for readjusting the output pressure and the output flow of the breathing machine after the plurality of times of reduction treatment.
9. The method of claim 8, wherein the third set of conditions includes at least one of: the minute ventilation is smaller than or equal to a second lower limit value of a set minute ventilation range, the respiratory frequency exceeds the set respiratory frequency range, and the end-tidal carbon dioxide is larger than or equal to a fourth upper limit value of the set end-tidal carbon dioxide range;
correspondingly, the readjusting the output pressure and the output flow of the breathing machine after the plurality of times of the turndown treatment comprises the following steps:
Acquiring, by the controller, a fourth duration of minute ventilation, the respiratory rate, and the end-tidal carbon dioxide satisfying a third set condition if the minute ventilation, the respiratory rate, and the end-tidal carbon dioxide satisfy the third set condition;
And under the condition that the fourth duration is longer than or equal to a fourth set duration, the controller restores the output pressure of the breathing machine after the multiple lowering treatment to the output pressure of the breathing machine during the last lowering treatment before the last lowering treatment in the multiple lowering treatment process, restores the output flow of the breathing machine after the multiple lowering treatment to the output flow of the breathing machine during the last lowering treatment before the last lowering treatment in the multiple lowering treatment process, and controls an alarm of the breathing machine to send a second alarm signal.
10. The method of claim 8, wherein the obtaining, by the controller, the minute ventilation, the breathing frequency, and the end-tidal carbon dioxide of the subject using the multi-turn down processed ventilator if the trend of the third pressure value is not stepwise increasing, further comprises:
Under the condition that the minute ventilation, the respiratory frequency and the end-tidal carbon dioxide meet a fourth set condition, the controller controls the output pressure of the breathing machine to keep the output pressure of the breathing machine after the multiple-time lowering treatment unchanged, and controls the output flow of the breathing machine to keep the output flow of the breathing machine after the multiple-time lowering treatment unchanged;
Wherein the fourth setting condition is: the minute ventilation is in a set minute ventilation range and the respiratory rate is in a set respiratory rate range and the end tidal carbon dioxide is in a set end tidal carbon dioxide range.
11. The method according to claim 1, wherein the method further comprises:
And under the condition that the first pressure value is in a set respiratory muscle contraction generating pressure range, the controller controls the output pressure of the breathing machine to keep the first output pressure value unchanged, and controls the output flow of the breathing machine to keep the first output flow unchanged.
12. A control device for a ventilator, comprising:
The acquisition module is used for acquiring a first output pressure value and a first output flow value of the breathing machine;
a determining module for determining a first pressure value resulting from respiratory muscle contraction based on the first output pressure value and the first output flow value;
and the adjusting module is used for adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value.
13. A ventilator, comprising:
A sensor for acquiring a first output pressure value and a first output flow value of the ventilator;
and the controller is used for determining a first pressure value generated by respiratory muscle contraction according to the first output pressure value and the first output flow value, and adjusting the output pressure and/or the output flow of the breathing machine according to the first pressure value.
14. An electronic device, comprising:
at least one processor; and
A memory communicatively coupled to the at least one processor; wherein,
The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of controlling a ventilator of any of claims 1-11.
15. A computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of controlling a ventilator of any of claims 1-11.
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| CN202410473298.1A CN118059361B (en) | 2024-04-19 | 2024-04-19 | Breathing machine, control method and control device thereof, electronic equipment and storage medium |
| CN202410837031.6A CN118526681A (en) | 2024-04-19 | 2024-04-19 | Breathing machine, control method and control device thereof, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108596669A (en) * | 2018-04-25 | 2018-09-28 | 合肥上城信息技术有限公司 | It is a kind of to be used for multi-platform distribution service system and method |
| CN114257381A (en) * | 2021-12-21 | 2022-03-29 | 四川启睿克科技有限公司 | Non-knowledge proof based yield calculation method |
| US20220401674A1 (en) * | 2021-06-18 | 2022-12-22 | Drägerwerk AG & Co. KGaA | Ventilation device, process, computer program and device for determining an indicator of an intrinsic end-expiratory pressure |
| US20230263973A1 (en) * | 2020-06-30 | 2023-08-24 | Levered Impact, Llc D/B/A Ion-Biomimicry | Lung ventilator system and method of ventilating lungs in breathing and non-breathing patients |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108596669A (en) * | 2018-04-25 | 2018-09-28 | 合肥上城信息技术有限公司 | It is a kind of to be used for multi-platform distribution service system and method |
| US20230263973A1 (en) * | 2020-06-30 | 2023-08-24 | Levered Impact, Llc D/B/A Ion-Biomimicry | Lung ventilator system and method of ventilating lungs in breathing and non-breathing patients |
| US20220401674A1 (en) * | 2021-06-18 | 2022-12-22 | Drägerwerk AG & Co. KGaA | Ventilation device, process, computer program and device for determining an indicator of an intrinsic end-expiratory pressure |
| CN114257381A (en) * | 2021-12-21 | 2022-03-29 | 四川启睿克科技有限公司 | Non-knowledge proof based yield calculation method |
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