Automatic pressure response method of respiratory support equipment and respiratory support equipment

Abstract

The invention discloses an automatic pressure response method for respiratory support equipment. The automatic pressure response method comprises the following steps: setting correspondingly adjusted basic pressure according to different response events; obtaining the user gender and the BMI, and setting an initial response coefficient according to the user gender and the BMI; detecting a response event, and judging whether the response event occurs or not; if yes, according to the response event, the pressure level at the current moment and the rise coefficient of the event index in the monitoring time period are obtained, the pressure rise index of the respiratory support equipment is calculated, and pressure up-regulation is conducted on the respiratory support equipment; if not, acquiring the pressure level at the current moment and a decline coefficient of the event index in the monitoring time period, calculating a pressure decline index of the respiratory support equipment, and performing pressure decline on the respiratory support equipment; and repeating the steps at a first time interval. The invention further discloses respiratory support equipment. The technical problem of how to accurately and quickly adjust the pressure in a self-adaptive mode according to the state of a user and prevent the airway from collapsing is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of respiratory support equipment, and in particular to an automatic pressure response method for respiratory support equipment and a respiratory support equipment. Background Art

[0002] Respiratory support equipment is a device that can effectively replace, control or change a person's normal physiological breathing, increase lung ventilation, improve respiratory function, reduce respiratory consumption, and save heart reserve. In clinical practice, especially in the fields of surgery, emergency treatment, and treatment of respiratory diseases, respiratory support equipment is increasingly widely used. Respiratory support equipment usually consists of a ventilation control system, a monitoring system, and a control display interface. Generally, the airway pressure reaches a preset pressure by controlling the turbine speed, thereby achieving single-level or dual-level continuous positive pressure ventilation support. It is usually equipped with medical gas low-pressure hose assemblies, alarm systems, respiratory circuits, humidifiers and other accessories or auxiliary function modules. It is a device with automatic mechanical ventilation function. With the emergence of more and more home non-invasive respiratory support devices that are fully functional, have good synchronization performance, and are easy to carry, patients with respiratory diseases can receive mechanical ventilation treatment at home, which not only reduces the pressure on hospitals, but also saves family expenses. The patent document with application number 202311770942.3 discloses a method and system for regulating the pressure of a respiratory support device. The method monitors the overshoot or undershoot of the patient end by monitoring the pressure sequence of the pressure rise stage of each inspiratory phase of the patient end of the target respiratory support device in real time, and reduces or increases the pressure output of the new round according to the overshoot or undershoot of the pressure points of the pressure sequences of multiple historical rounds, so as to achieve correction and adjustment of the overshoot or undershoot of the pressure on the patient end. Due to the large differences among users wearing home respiratory support devices, it is often difficult to achieve the ideal treatment effect with a fixed pressure response strategy for sleep events. Home sleep respiratory support devices are an ideal choice for conservative treatment of OSA patients. Whether there is a reasonable treatment pressure is directly related to the effectiveness and comfort of the treatment. Therefore, it is urgent to propose an automatic pressure response method and respiratory support device for respiratory support equipment to solve the technical problem of how to accurately and quickly adjust the pressure according to the user's own state to prevent airway collapse. Summary of the invention

[0003] The main purpose of the present invention is to propose an automatic pressure response method for respiratory support equipment and a respiratory support equipment, aiming to solve the technical problem of how to accurately and quickly adjust the pressure according to the user's own state to prevent airway collapse.

[0004] To achieve the above object, the present invention provides an automatic pressure response method for a respiratory support device, wherein the automatic pressure response method for a respiratory support device comprises the following steps:

[0005] S1. Set the corresponding adjusted basic pressure according to different response events;

[0006] S2, obtaining the user's gender and BMI, and setting an initial response coefficient according to the user's gender and BMI;

[0007] S3, detecting a response event and determining whether a response event occurs;

[0008] If yes, according to the response event, obtain the current pressure level and the rising coefficient of the event index in the monitoring time period, calculate the pressure rising index of the respiratory support device, and increase the pressure of the respiratory support device;

[0009] If not, then obtain the current pressure level and the decrease coefficient of the event index in the monitoring time period, calculate the pressure decrease index of the respiratory support device, and reduce the pressure of the respiratory support device;

[0010] S4. Repeat step S3 after a first time interval.

[0011] In one of the preferred embodiments, the response events include obstructive apnea events, hypopnea events, airflow limitation events and snoring events.

[0012] One of the preferred solutions, the step S2 obtains the user's gender and sets the initial response coefficient according to the user's gender, specifically:

[0013] According to the user gender input by the user, a gender adjustment coefficient, that is, a first coefficient, is obtained;

[0014] The first coefficient includes a male rising coefficient, a male falling coefficient, a female rising coefficient and a female falling coefficient; wherein the male rising coefficient is 1.1, the male falling coefficient is 0.9, the female rising coefficient is 0.9, and the female falling coefficient is 0.9.

[0015] In one preferred solution, the step S2 obtains the user's BMI and sets the initial response coefficient according to the user's BMI, specifically: the user's BMI is calculated according to the height and weight input by the user to obtain the second coefficient;

[0016] If the user's BMI is less than 18.5, the increase coefficient is 0.9 and the decrease coefficient is 1.1;

[0017] If 18.5≤user BMI<24, the rise coefficient and fall coefficient are 1;

[0018] If 24≤user BMI<28, the increase coefficient is 1.1 and the decrease coefficient is 0.9;

[0019] If the user's BMI is ≥ 28, the increase coefficient is 1.2 and the decrease coefficient is 0.8.

[0020] In one of the preferred solutions, the rising coefficient or falling coefficient of the pressure level at the current moment is obtained in step S3, specifically:

[0021] Get the current pressure level and get the third coefficient; specifically:

[0022] If the current pressure level is less than 10 cmH2O, the rise coefficient and the fall coefficient are 1;

[0023] If 10cmH2O≤the current pressure level<25cmH2O, the rise coefficient is The reduction coefficient is Among them, press is the pressure level at the current moment;

[0024] If the current pressure level is greater than 25 cmH2O, the rising coefficient is 1.5 and the falling coefficient is 0.5.

[0025] One of the preferred solutions, in step S3, the rising coefficient or the falling coefficient of the event index in the monitoring time period is obtained, specifically:

[0026] According to the detected response event, the event index of the corresponding monitoring time period is obtained to obtain the fourth coefficient; specifically:

[0027] If the event index is less than 5, the rise coefficient and the fall coefficient are 1;

[0028] If 5≤ event index<30, the rising coefficient is 0.02*AHLSI+0.9, and the falling coefficient is -0.02*AHLSI+1.1; where AHLSI is the event index;

[0029] If the event index is greater than 30, the increase coefficient is 1.5 and the decrease coefficient is 0.5.

[0030] In one of the preferred embodiments, the event index includes an obstructive apnea event index, a hypopnea event index, an airflow limitation event index and a snoring event index.

[0031] In one of the preferred solutions, the pressure rise index or drop index of the respiratory support device is calculated in step S3, specifically:

[0032] Rising index or falling index = first coefficient × second coefficient × third coefficient × fourth coefficient;

[0033] The pressure increase index or decrease index of the respiratory support device is the pressure increase or decrease amount of the respiratory support device.

[0034] In one of the preferred embodiments, the minimum value of the pressure drop index of the respiratory support equipment is between 0.2-2 cmH2O.

[0035] A respiratory support device, wherein the respiratory support device implements the automatic pressure response method of the respiratory support device as described above.

[0036] In the above technical solution of the present invention, the automatic pressure response method of the respiratory support device includes the following steps: setting the corresponding adjusted basic pressure according to different response events; obtaining the user's gender and BMI, and setting the initial response coefficient according to the user's gender and BMI; detecting the response event and determining whether the response event occurs; if so, according to the response event, obtaining the rising coefficient of the pressure level at the current moment and the event index of the monitoring time period, calculating the pressure rising index of the respiratory support device, and adjusting the pressure of the respiratory support device upward; if not, obtaining the falling coefficient of the pressure level at the current moment and the event index of the monitoring time period, calculating the pressure falling index of the respiratory support device, and adjusting the pressure of the respiratory support device downward; repeating the above steps at intervals of the first time. The present invention adaptively adjusts the user's pressure based on the user's gender, BMI, the pressure at the adjustment moment, and the AHI level, thereby outputting the respiratory support device pressure that meets the user's current state, solving the technical problem of how to accurately and quickly adaptively adjust the pressure size according to the user's own state to prevent airway collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0038] Figure 1 It is a schematic diagram of an automatic pressure response method of a respiratory support device according to the present invention.

[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0042] Furthermore, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] See also Figure 1 According to one aspect of the present invention, the present invention provides an automatic pressure response method for a respiratory support device, wherein the automatic pressure response method for a respiratory support device comprises the following steps:

[0044] S1. Set the corresponding adjusted basic pressure according to different response events;

[0045] S2, obtaining the user's gender and BMI, and setting an initial response coefficient according to the user's gender and BMI;

[0046] S3, detecting a response event and determining whether a response event occurs;

[0047] If yes, according to the response event, obtain the current pressure level and the rising coefficient of the event index in the monitoring time period, calculate the pressure rising index of the respiratory support device, and increase the pressure of the respiratory support device;

[0048] If not, then obtain the current pressure level and the decrease coefficient of the event index in the monitoring time period, calculate the pressure decrease index of the respiratory support device, and reduce the pressure of the respiratory support device;

[0049] S4. Repeat step S3 after a first time interval.

[0050] Specifically, in the present embodiment, the respiratory support device for treating OSA can select a single-level or dual-level mode. The present invention sets the corresponding adjusted basic pressure to 1 cmH2O according to different response event settings. The single-level mode adjusts CPAP, and the dual-level mode adjusts EPAP accordingly. When no event occurs within a certain period of time, the CPAP or IPAP of the respiratory support device is lowered by 1 cmH2O; specifically: in an obstructive sleep apnea event, CPAP / EPAP rises by 1 cmH2O within 15 seconds; in a hypopnea event, CPAP / EPAP rises by 1 cmH2O within 15 seconds; in an airflow limitation event, CPAP / EPAP rises by 1 cmH2O within 15 seconds; in a snoring event, CPAP / EPAP rises by 1 cmH2O within 15 seconds; if no event occurs within the second time, CPAP / EPAP decreases by 1 cmH2O within 15 seconds; the second time is 10 minutes, which is not specifically limited by the present invention and can be set according to needs.

[0051] Specifically, in this embodiment, the present invention adjusts the response pressure value based on the user's gender, user's BMI, the current pressure level and the AHLSI during the treatment, and sets response coefficients corresponding to the user's gender, user's BMI, the current pressure level and the AHLSI during the treatment, respectively. The final pressure rise index or decrease index of the respiratory support equipment needs to be obtained by multiplying the first coefficient, the second coefficient, the third coefficient and the fourth coefficient corresponding to the user's gender, user's BMI, the current pressure level and the AHLSI during the treatment, and the minimum value of the pressure decrease index of the respiratory support equipment is between 0.2-2cmH2O.

[0052] Specifically, in this embodiment, the response events include obstructive apnea events, hypopnea events, airflow limitation events and snoring events.

[0053] Specifically, in this embodiment, the step S2 obtains the user's gender and sets the initial response coefficient according to the user's gender, specifically:

[0054] According to the user gender input by the user, a gender adjustment coefficient, that is, a first coefficient, is obtained;

[0055] The first coefficient includes the male rising coefficient, the male falling coefficient, the female rising coefficient and the female falling coefficient; among them, the male rising coefficient is 1.1, the male falling coefficient is 0.9, the female rising coefficient is 0.9, and the female falling coefficient is 0.9; if not entered, the falling coefficient or rising coefficient defaults to 1.

[0056] Specifically, in this embodiment, the step S2 obtains the user's BMI and sets the initial response coefficient according to the user's BMI, specifically: according to the height and weight input by the user, the user's BMI is calculated to obtain the second coefficient;

[0057] If the user's BMI is less than 18.5, the increase coefficient is 0.9 and the decrease coefficient is 1.1;

[0058] If 18.5≤user BMI<24, the rise coefficient and fall coefficient are 1;

[0059] If 24≤user BMI<28, the increase coefficient is 1.1 and the decrease coefficient is 0.9;

[0060] If the user's BMI is ≥ 28, the increase coefficient is 1.2 and the decrease coefficient is 0.8.

[0061] Specifically, in this embodiment, the rising coefficient or falling coefficient of the pressure level at the current moment is obtained in step S3. In the single-level mode, the pressure level at the current moment is CPAP, and in the bi-level mode, the pressure level at the current moment is the average of IPAP or EPAP; specifically:

[0062] Get the current pressure level and get the third coefficient; specifically:

[0063] If the current pressure level is less than 10 cmH2O, the rise coefficient and the fall coefficient are 1;

[0064] If 10cmH2O≤the current pressure level<25cmH2O, the rise coefficient is The reduction coefficient is Among them, press is the pressure level at the current moment;

[0065] If the current pressure level is greater than 25 cmH2O, the rising coefficient is 1.5 and the falling coefficient is 0.5.

[0066] Specifically, in this embodiment, the rising coefficient or falling coefficient of the event index in the monitoring time period is obtained in step S3, specifically:

[0067] According to the detected response event, the event index of the monitoring time period is obtained to obtain the fourth coefficient; the event index includes an obstructive apnea event index, a hypopnea event index, an airflow limitation event index and a snoring event index; specifically:

[0068] If the event index is less than 5, the rise coefficient and the fall coefficient are 1;

[0069] If 5≤ event index<30, the rising coefficient is 0.02*AHLSI+0.9, and the falling coefficient is -0.02*AHLSI+1.1; where AHLSI is the event index;

[0070] If the event index is greater than 30, the increase coefficient is 1.5 and the decrease coefficient is 0.5.

[0071] Specifically, in this embodiment, the pressure rise index or drop index of the respiratory support device is calculated in step S3, specifically:

[0072] Rising index or falling index = first coefficient × second coefficient × third coefficient × fourth coefficient;

[0073] The pressure increase index or decrease index of the respiratory support device is the pressure increase or decrease amount of the respiratory support device.

[0074] Specifically, in this embodiment, the first time is 10 minutes, which is not specifically limited in the present invention and can be set according to needs.

[0075] According to one aspect of the present invention, the present invention provides a respiratory support device, wherein the respiratory support device implements the automatic pressure response method of the respiratory support device as described.

[0076] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A method for automatic pressure response of a respiratory support device, characterized in that: The following steps are involved: S1. Set the corresponding adjusted basic pressure according to different response events; S2, obtaining the user's gender and BMI, and setting an initial response coefficient according to the user's gender and BMI; S3, detecting a response event and determining whether a response event occurs; If yes, according to the response event, obtain the current pressure level and the rising coefficient of the event index in the monitoring time period, calculate the pressure rising index of the respiratory support device, and increase the pressure of the respiratory support device; If not, then obtain the current pressure level and the decrease coefficient of the event index in the monitoring time period, calculate the pressure decrease index of the respiratory support device, and reduce the pressure of the respiratory support device; S4. Repeat step S3 after a first time interval.

2. The automatic pressure response method of a respiratory support device according to claim 1, characterized in that: The response events include obstructive apnea events, hypopnea events, airflow limitation events and snoring events.

3. A method for automatic pressure response of a respiratory support device according to any one of claims 1 to 2, characterized in that: The step S2 obtains the user's gender and sets the initial response coefficient according to the user's gender, specifically: According to the user gender input by the user, a gender adjustment coefficient, that is, a first coefficient, is obtained; The first coefficient includes a male rising coefficient, a male falling coefficient, a female rising coefficient and a female falling coefficient; wherein the male rising coefficient is 1.1, the male falling coefficient is 0.9, the female rising coefficient is 0.9, and the female falling coefficient is 0.

9.

4. A method for automatic pressure response of a respiratory support device according to any one of claims 1 to 2, characterized in that: The step S2 obtains the user's BMI and sets the initial response coefficient according to the user's BMI, specifically: according to the height and weight input by the user, the user's BMI is calculated to obtain the second coefficient; If the user's BMI is less than 18.5, the increase coefficient is 0.9 and the decrease coefficient is 1.1; If 18.5≤user BMI<24, the rise coefficient and fall coefficient are 1; If 24≤user BMI<28, the increase coefficient is 1.1 and the decrease coefficient is 0.9; If the user's BMI is ≥ 28, the increase coefficient is 1.2 and the decrease coefficient is 0.

8.

5. A method for automatic pressure response of a respiratory support device according to any one of claims 1 to 2, characterized in that: The step S3 obtains the rising coefficient or falling coefficient of the pressure level at the current moment, specifically: Get the current pressure level and get the third coefficient; specifically: If the current pressure level is less than 10 cmH2O, the rise coefficient and the fall coefficient are 1; If 10cmH2O≤the current pressure level<25cmH2O, the rise coefficient is The reduction coefficient is Among them, press is the pressure level at the current moment; If the current pressure level is greater than 25 cmH2O, the rising coefficient is 1.5 and the falling coefficient is 0.

5.

6. A method for automatic pressure response of a respiratory support device according to any one of claims 1 to 2, characterized in that: The rising coefficient or falling coefficient of the event index in the monitoring time period is obtained in step S3, specifically: According to the detected response event, the event index of the corresponding monitoring time period is obtained to obtain the fourth coefficient; specifically: If the event index is less than 5, the rise coefficient and the fall coefficient are 1; If 5≤ event index<30, the rising coefficient is 0.02*AHLSI+0.9, and the falling coefficient is -0.02*AHLSI+1.1; where AHLSI is the event index; If the event index is greater than 30, the increase coefficient is 1.5 and the decrease coefficient is 0.

5.

7. The automatic pressure response method of a respiratory support device according to claim 6, characterized in that: The event indexes include an obstructive apnea event index, a hypopnea event index, an airflow limitation event index and a snoring event index.

8. A method for automatic pressure response of a respiratory support device according to any one of claims 1 to 2, characterized in that: The step S3 calculates the pressure rise index or drop index of the respiratory support device, specifically: Rising index or falling index = first coefficient × second coefficient × third coefficient × fourth coefficient; The pressure increase index or decrease index of the respiratory support device is the pressure increase or decrease amount of the respiratory support device.

9. A method for automatic pressure response of a respiratory support device according to any one of claims 1 to 2, characterized in that: The minimum value of the pressure drop index of the respiratory support device is between 0.2-2 cmH2O.

10. A respiratory support device, characterized in that: The respiratory support device implements an automatic pressure response method for a respiratory support device as described in any one of claims 1-9.

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