CN-122006032-A - System and method for switching modes and regulating voltage based on respiratory event and electronic equipment

CN122006032ACN 122006032 ACN122006032 ACN 122006032ACN-122006032-A

Abstract

The invention relates to the technical field of medical equipment, in particular to a system and a method for switching modes and regulating voltage based on respiratory events and electronic equipment. The system comprises a breathing machine monitoring module, a breathing event identification module, a breathing machine control module and a breathing machine alarm module, wherein the breathing machine monitoring module collects multidimensional breathing parameters such as airway pressure, flow and the like in real time, the breathing event identification module accurately judges three events such as obstructive sleep apnea, hypopnea and airflow limitation and quantifies the airflow limitation degree, the breathing machine control module switches a ventilation mode according to a preset progressive sequence, dynamically adjusts pressure parameters, the pressure is regulated in the reverse direction when the patient breathes, and the alarm module monitors equipment states and parameter safety ranges and triggers audible and visual alarm when the equipment states and parameter safety ranges are abnormal. The invention realizes accurate recognition of respiratory events, personalized mode adaptation and pressure regulation, balances curative effect and comfort, and ensures treatment safety and long-term compliance.

Inventors

ZHU ZHEYANG
WANG RUONAN
ZHU JING

Assignees

威海威高健康科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260202

Claims (9)

1. A system for switching modes and regulating voltage based on respiratory events, comprising: The breathing machine monitoring module is used for monitoring breathing parameters of a patient in real time, including airway pressure, tidal volume, inspiration time, airway resistance and flow; A respiratory event identification module for identifying respiratory events of the patient including obstructive sleep apnea, hypopnea, and airflow limitation from respiratory parameters and calculating a degree of airflow limitation; The ventilator control module is used for triggering a ventilation mode according to the respiratory event of a patient, switching the ventilation mode according to a preset progressive sequence based on the air flow limitation degree in the ventilation mode, and dynamically adjusting pressure parameters; And the breathing machine alarm module is used for monitoring the state of breathing machine equipment and the breathing parameters of a patient, generating alarm details and triggering audible and visual alarm when the equipment fails or the breathing parameters exceed a preset safety range.
2. A system for switching modes and regulating pressure based on respiratory events according to claim 1, wherein said identifying respiratory events of a patient based on respiratory parameters comprises: When the flow amplitude is smaller than the first amplitude threshold and the duration is greater than or equal to the duration threshold and the average airway resistance is greater than or equal to the resistance threshold, determining that the patient is currently in an obstructive sleep apnea state; when the flow amplitude is less than the second amplitude threshold and the duration is greater than or equal to the duration threshold, determining that the patient is currently in a hypopnea condition; Calculating the average value of the difference values of the maximum value and the minimum value of the flow in the previous n respiratory cycles, obtaining the ratio of the difference value of the maximum value and the minimum value of the flow in the current respiratory cycle to the average value of the difference values, marking the ratio as the flatness degree, and judging that the patient is in the current air flow limited state when the flatness degree is smaller than or equal to a flatness degree threshold value.
3. The system for switching modes and regulating pressure based on respiratory events according to claim 2, wherein the method for calculating the degree of restriction of the flow comprises: when the patient is in an obstructive sleep apnea state, the degree of airflow limitation is equal to the mean airway resistance; When the patient is in a low ventilation state, taking the global flow amplitude of the patient in a normal breathing state as a reference, combining the global amplitude ratio distance k to obtain a reference threshold, calculating the difference value between the flow amplitude in each time window and the reference threshold during the occurrence period of low ventilation, calculating the average value of all the difference values, and multiplying the average value by the low ventilation duration to obtain the airflow limitation degree of low ventilation; The degree of airflow restriction is equal to the degree of flatness when the patient is in the airflow restricted state.
4. A system for switching modes and regulating pressure based on respiratory events according to claim 3, wherein airway resistance is detected by FOT forced oscillation technique, and the mean airway resistance is the average value of airway resistance during FOT initiation period.
5. The respiratory event switching and pressure regulating system according to claim 1, wherein the ventilation mode comprises a bi-level positive airway pressure with a pressure support of 0cmH 2 O, a bi-level positive airway pressure with a pressure support of non-0 cmH 2 O, and a tri-level positive airway pressure.
6. The respiratory event switching mode and pressure regulating system according to claim 5, wherein the bi-level positive airway pressure of pressure support other than 0cmH 2 O comprises two waveforms, a sine wave mode and a square wave mode, respectively, wherein the square wave mode has a faster inspiratory pressure rise rate than the sine wave mode; the three-level positive airway pressure is based on the double-level positive airway pressure, and pressure unloading is to increase pressure unloading at the end of expiration, wherein the pressure unloading refers to regulation and control actions for reducing the airway pressure compared with the expiratory pressure corresponding to the double-level positive airway pressure mode.
7. The respiratory event switching and pressure regulating system of claim 1, wherein the switching of the ventilation modes follows a preset progression sequence and a switching trigger condition is associated with respiratory events and airflow limited mitigation effects, the switching logic being as follows: The method comprises the steps of enabling a double-level positive airway pressure mode with pressure support of 0cm H 2 O by default initially, switching to a sine wave mode with pressure support of double-level positive airway pressure of other than 0cm H 2 O when a respiratory event is detected, increasing the pressure support step by step, comparing the air flow limited degree of the respiratory event with a corresponding air flow limited threshold value in the process of increasing the pressure support step by step, and switching to a square wave mode if the air flow limited degree of the respiratory event still does not meet the corresponding air flow limited threshold value condition after the pressure support is increased to a first pressure support upper limit; in the square wave mode, increasing the expiratory pressure step by step, and switching to the three-level positive airway pressure if the airflow limitation degree of the respiratory event still does not meet the corresponding airflow limitation threshold condition when the expiratory pressure is increased to the first expiratory upper limit; During either breathing mode switching or pressure parameter adjustment, if the patient is monitored to resume normal breathing, the pressure support or expiratory pressure is reduced.
8. A method of regulating voltage based on a respiratory event switching pattern, comprising: Monitoring respiratory parameters of the patient, including airway pressure, tidal volume, inspiratory time, airway resistance, and flow; Identifying respiratory events of the patient including obstructive sleep apnea, hypopnea, and airflow limitation from respiratory parameters and calculating a degree of airflow limitation; Triggering a ventilation mode according to a respiratory event of a patient, switching the ventilation mode according to a preset progressive sequence based on the air flow limitation degree in the ventilation mode, and dynamically adjusting pressure parameters; monitoring the equipment state of the breathing machine and the breathing parameters of the patient, and generating alarm details and triggering audible and visual alarms when equipment faults or the breathing parameters exceed a preset safety range.
9. An electronic device, characterized in that the electronic device comprises: one or more processors; A memory for storing one or more programs; The one or more programs, when executed by the one or more processors, cause the one or more processors to implement a respiratory event switching mode and voltage regulating system as claimed in any of claims 1-7.

Description

System and method for switching modes and regulating voltage based on respiratory event and electronic equipment Technical Field The invention relates to the technical field of medical equipment, in particular to a system and a method for switching modes and regulating voltage based on respiratory events and electronic equipment. Background Sleep respiratory disorder and obstructive sleep apnea-hypopnea syndrome are chronic diseases characterized by repeated collapse of airway and frequent respiratory events in sleep, and long-term illness is easy to cause multiple system complications, which seriously threatens the health of patients. The positive pressure ventilation treatment is used as a first-line intervention means of the diseases, and has the core value that the ventilation is kept smooth through positive airway pressure support, but the traditional positive pressure ventilation equipment has obvious shortboards in adapting to individual treatment requirements of patients, on one hand, the identification of respiratory events such as obstructive sleep apnea, hypopnea, airflow limitation and the like is mostly dependent on single flow or pressure parameters, the lack of multidimensional quantitative analysis leads to insufficient event identification accuracy and is difficult to be matched with individual airway obstruction characteristics of the patients, on the other hand, ventilation mode switching is mostly preset manually by adopting fixed logic or depending on medical staff, the ventilation mode cannot be dynamically adjusted according to the real-time physiological requirements and treatment response of the patients, and the pressure parameter adjustment is mostly in uniform gradient setting, and does not establish linkage with individual tolerance of the patients and disease relief effects, so that the pertinence of a treatment scheme is not strong. The method not only enables part of patients to influence the intervention effect due to unmatched treatment parameters, but also often reduces the compliance of long-term treatment due to poor breathing comfort, and is difficult to realize the core requirement of providing accurate and personalized treatment for the patients. Disclosure of Invention The invention aims to provide a system, a method and electronic equipment for switching modes and regulating pressure based on respiratory events, which are used for solving the problems that in the prior art, the respiratory events are inaccurate to identify, the ventilation modes are difficult to automatically adapt, the pressure regulation lacks quantitative linkage and the respiratory comfort level is ignored, and the accurate personalized treatment and the comfortable use of a patient cannot be met. The technical scheme of the invention is that the system for switching modes and regulating voltage based on respiratory events comprises: The breathing machine monitoring module is used for monitoring breathing parameters of a patient in real time, including airway pressure, tidal volume, inspiration time, airway resistance and flow; A respiratory event identification module for identifying respiratory events of the patient including obstructive sleep apnea, hypopnea, and airflow limitation from respiratory parameters and calculating a degree of airflow limitation; The ventilator control module is used for triggering a ventilation mode according to the respiratory event of a patient, switching the ventilation mode according to a preset progressive sequence based on the air flow limitation degree in the ventilation mode, and dynamically adjusting pressure parameters; And the breathing machine alarm module is used for monitoring the state of breathing machine equipment and the breathing parameters of a patient, generating alarm details and triggering audible and visual alarm when the equipment fails or the breathing parameters exceed a preset safety range. Preferably, the identifying respiratory events of the patient according to respiratory parameters includes: When the flow amplitude is smaller than the first amplitude threshold and the duration is greater than or equal to the duration threshold and the average airway resistance is greater than or equal to the resistance threshold, determining that the patient is currently in an obstructive sleep apnea state; when the flow amplitude is less than the second amplitude threshold and the duration is greater than or equal to the duration threshold, determining that the patient is currently in a hypopnea condition; Calculating the average value of the difference values of the maximum value and the minimum value of the flow in the previous n respiratory cycles, obtaining the ratio of the difference value of the maximum value and the minimum value of the flow in the current respiratory cycle to the average value of the difference values, marking the ratio as the flatness degree, and judging that the patient is in the current air flow limited state when the fl