CN-122006121-A - Automatic external defibrillator, control method, control device, electronic equipment, computer medium and product thereof

CN122006121ACN 122006121 ACN122006121 ACN 122006121ACN-122006121-A

Abstract

The application provides a control method of an automatic external defibrillator, which comprises the steps of conducting heart rhythm analysis on a patient, maintaining the first working mode, or entering the first working mode when the state of the patient meets a first condition or a switching instruction of a user exists based on the heart rhythm analysis, conducting rescue flow comprising alternating heart rhythm analysis phases and cardiopulmonary resuscitation prompting phases through the automatic external defibrillator in the first working mode, controlling the automatic external defibrillator to switch to the second working mode when a second condition is met based on the result of the heart rhythm analysis, and controlling the automatic external defibrillator to stop cardiopulmonary resuscitation prompting and continuously conduct heart rhythm analysis in the second working mode, wherein the switching condition comprises the step of identifying whether the state of the patient meets the first condition or whether the switching instruction of the user exists through continuous heart rhythm analysis in the second working mode.

Inventors

CHEN Jin
ZHENG JIE

Assignees

苏州维伟思医疗科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260320

Claims (19)

1. A method of controlling an automatic external defibrillator, comprising: During operation of the automated external defibrillator, performing a heart rhythm analysis on the patient; Controlling the automatic external defibrillator to maintain in a first working mode, or controlling the automatic external defibrillator to enter the first working mode when the state of a patient meets a first condition or a switching instruction of a user is determined based on the heart rhythm analysis, wherein in the first working mode, the automatic external defibrillator executes a rescue procedure comprising alternating heart rhythm analysis phases and cardiopulmonary resuscitation prompting phases; When the second condition is satisfied based on the result of the heart rhythm analysis, controlling the automatic external defibrillator to switch to a second working mode under a confirmation operation instruction of a user or a determination that the patient state satisfies a set state; in the second working mode, controlling the automatic external defibrillator to stop the cardiopulmonary resuscitation prompt and continuously executing the heart rhythm analysis; Judging whether a switching condition is met, wherein the switching condition comprises whether the patient state meets the first condition or whether a switching instruction of a user exists or not according to the continuous rhythm analysis in the second working mode.
2. The control method according to claim 1, wherein when the second condition is satisfied based on the result of the heart rhythm analysis, controlling the automatic external defibrillator to switch to the second operation mode in a case where a user's confirmation operation instruction or a patient state is determined to satisfy a set state, comprises: Entering an instruction receiving preparation when the automatic external defibrillator is in the first working mode and a preset enabling condition is detected to be met; Receiving a confirmation operation instruction input by a user; and responding to the confirmation operation instruction, and executing switching from the first working mode to the second working mode.
3. The control method according to claim 2, wherein the enabling condition comprises a cardiopulmonary resuscitation prompting phase currently in the first operation mode, and a preset heart rate analysis result indicates that the patient's heart rhythm is of a heart rhythm type other than cardiopulmonary resuscitation intervention, wherein the preset heart rate analysis result is one or a combination of a latest at least one heart rate analysis result, a current heart rate analysis result, and a latest heart rate analysis result within a preset period of time; Preferably, the heart rhythm type of cardiopulmonary resuscitation intervention includes a heart rhythm type consistent with defibrillation indications, including Ventricular Fibrillation (VF), pulseless Ventricular Tachycardia (VT), cardiac arrest, and extreme bradycardia with a heart rate below a preset threshold.
4. The control method according to claim 2, wherein, When the automatic external defibrillator is in the first working mode and the preset enabling condition is detected to be met, entering instruction receiving preparation, wherein the method comprises the steps of generating and outputting mode switching prompt information for guiding a user to confirm; The receiving of the confirmation operation instruction input by the user in response to the mode switching prompt information comprises receiving the confirmation operation instruction input by the user in response to the mode switching prompt information; Preferably, the outputted mode switching prompt information comprises outputting a voice broadcast representing that the patient is confirmed to restore the autonomous circulation; further preferably, the automatic external defibrillator comprises an indicator light, wherein the mode switching prompt message further comprises a control signal for controlling the indicator light to flash while outputting the voice broadcast.
5. The control method according to claim 4, wherein the user confirming the operation command in step S320 means that at least one specific operation of a function button on the automatic external defibrillator is received within a preset time window after entering the command receiving preparation; preferably, the method comprises the steps of, The specific operation is one time and comprises pressing the function key for a first preset time period, or The specific operation is carried out at least twice continuously, and comprises the steps of firstly pressing the function key for a first preset time length for a long time, then pressing the same function key again for a third preset time length within a second preset time length, and preferably, the first preset time length is greater than or equal to the third preset time length.
6. The control method according to any one of claims 1 to 5, characterized in that the analyzing of the heart rhythm of the patient during the operation of the automatic external defibrillator comprises: Synchronously acquiring electrocardiosignals of a patient and reference signals related to chest compression actions; adopting an adaptive filtering algorithm, and carrying out real-time filtering processing on the electrocardiosignals by utilizing the reference signals so as to inhibit or eliminate interference noise introduced by pressing action; Performing the heart rhythm analysis based on the filtered electrocardiosignals; Preferably, the reference signal includes: Chest impedance variation signal measured by electrode pads of the automatic external defibrillator, or Acceleration sensor data which are acquired through an external or built-in cardiopulmonary resuscitation feedback device and represent the pressing action, and calculated pressing frequency and/or pressing depth information.
7. The control method of claim 6, wherein during operation of the automated external defibrillator, heart rhythm analysis is performed on the patient, further comprising: if the current heart rhythm analyzed in real time based on the filtered electrocardiosignal is the determined shockable heart rhythm, immediately interrupting the current cardiopulmonary resuscitation prompt, controlling the automatic external defibrillator to go to a heart rhythm analysis stage to prepare and execute defibrillation operation, or If the current heart rhythm analyzed in real time based on the filtered electrocardiosignal is the non-shockable heart rhythm, continuing the current cardiopulmonary resuscitation prompt, or If the current heart rate analyzed in real time based on the filtered electrocardiosignal is an uncertain heart rate, the current cardiopulmonary resuscitation prompt is immediately interrupted, heart rate analysis is continuously carried out on the patient, whether the current heart rate is a shockable heart rate or not is judged based on the electrocardiosignal, the current cardiopulmonary resuscitation prompt is immediately interrupted when the current heart rate is judged to be shockable, the automatic external defibrillator is controlled to go to a heart rate analysis stage to prepare and execute defibrillation operation, and the current cardiopulmonary resuscitation prompt is continuously carried out when the current heart rate is judged to be shockable.
8. The control method of claim 6, wherein during operation of the automated external defibrillator, heart rhythm analysis is performed on the patient, further comprising: counting defibrillation operations after the automated external defibrillator goes to the heart rhythm analysis stage and performs defibrillation operations; after the number of sustained defibrillation exceeds the preset number, the defibrillation operation is stopped.
9. The control method according to claim 1, wherein, In the second working mode, controlling the automatic external defibrillator to stop the cardiopulmonary resuscitation prompt and continuously execute the heart rhythm analysis, wherein the method comprises the steps of periodically outputting device state prompt information to a user according to a preset time interval when the continuously executed heart rhythm analysis result is a non-shockable heart rhythm, or alternatively, the method comprises the steps of The automatic external defibrillator is provided with a manual operation interface, wherein in the second working mode, the automatic external defibrillator is controlled to stop the cardiopulmonary resuscitation prompt and continuously execute the heart rhythm analysis, and the automatic external defibrillator is controlled to be forcedly switched back to the first working mode from the second working mode in response to a user instruction received through the manual operation interface.
10. The control method according to claim 1, wherein the information of the patient state includes ROSC state information of the patient for recovering the autonomous circulation, wherein the manner of acquiring the ROSC state information includes: Receiving the ROSC status information acquired by the automatic external defibrillator, or receiving a signal from an external physiological parameter monitoring device in communication with the automatic external defibrillator and generating the ROSC status information based on the signal, preferably the external physiological parameter monitoring device comprises a sphygmomanometer, a carbon dioxide end-expiratory monitor, a pulse oximeter, a monitoring device, or The method comprises the steps of receiving a signal generated by a circulation recovery sign detection module integrated with the automatic external defibrillator body and generating the ROSC state information based on the signal, wherein the circulation recovery sign detection module preferably comprises a pulse sensor and a perfusion index detection module.
11. The control method according to claim 1, wherein the second operation mode is an operation mode that is enabled after the automatic external defibrillator completes at least one defibrillation operation, wherein the controlling the automatic external defibrillator to switch to the second operation mode when the second condition is satisfied based on the result of the heart rhythm analysis, upon a confirmation operation instruction by a user or a determination that the patient state satisfies a set state, includes: A manual trigger operation performed on the automated external defibrillator in response to the rescuer confirming that the patient is recovering from spontaneous circulation; preferably, the manual triggering operation includes a long-press operation and a subsequent short-press operation sequentially performed on the same function key on the automatic external defibrillator.
12. The control method of claim 1, wherein the automated external defibrillator is configured in association with a sudden cardiac death risk warning device, wherein the control method further comprises: before the automatic external defibrillator is controlled to switch to a second working mode, responding to the early warning signal received from the early warning equipment, and accessing to automatically control the automatic external defibrillator; Preferably, after the automatic external defibrillator is automatically controlled, allowing the automatic external defibrillator to enter and remain in the second mode of operation; Preferably, the first condition characterizes a type of heart rhythm identified by the heart rhythm analysis as requiring cardiopulmonary resuscitation intervention; further preferably, the type of heart rhythm requiring cardiopulmonary resuscitation intervention comprises at least one of a type of heart rhythm consistent with a defibrillation indicator, cardiac arrest, and extreme bradycardia with a heart rate below a preset threshold, wherein the type of heart rhythm consistent with a defibrillation indicator comprises Ventricular Fibrillation (VF), pulseless Ventricular Tachycardia (VT); Further preferably, the preset threshold comprises 30bpm or 40bpm.
13. The control method of claim 1, wherein the second condition characterizes the automated external defibrillator being in a cardiopulmonary resuscitation prompting phase in the first mode of operation and the patient has been in a non-shockable rhythm; Preferably, the non-shockable rhythm state comprises obtaining a mode switch confirmation instruction entered by a user and/or obtaining a physiological parameter signal indicative of patient circulatory recovery from an external physiological monitoring device communicatively coupled to the automated external defibrillator.
14. The control method of claim 1, wherein cardiopulmonary resuscitation prompts of the rescue procedure include beat-to-beat prompts that provide compliance with standard first aid guidelines for guiding a rescuer through chest compressions.
15. A control device for an automatic external defibrillator, comprising: an analysis module configured to analyze a heart rhythm of a patient during operation of the automated external defibrillator; a first control module configured to control the automated external defibrillator to remain in a first mode of operation, or to enter the first mode of operation when it is determined based on the heart rhythm analysis that the patient status meets a first condition or there is a user switching instruction, wherein in the first mode of operation the automated external defibrillator performs a rescue procedure comprising alternating heart rhythm analysis phases and cardiopulmonary resuscitation prompting phases; A first switching module configured to control the automatic external defibrillator to switch to a second operation mode in a confirmation operation instruction of a user or in a determination that a patient state satisfies a set state when the second condition is satisfied based on a result of the heart rhythm analysis; A second control module configured to control the automated external defibrillator to stop the cardiopulmonary resuscitation prompt and to continue performing the cardiac rhythm analysis in the second mode of operation; And the second switching module is used for judging whether a switching condition is met or not, wherein the switching condition comprises whether the state of the patient meets the first condition or whether a switching instruction of a user exists or not according to the continuous rhythm analysis in the second working mode.
16. An automatic external defibrillator is provided, which comprises a first external defibrillator, characterized by comprising the following steps: The electrode plate is used for collecting electrocardiosignals of a patient; defibrillation circuitry for generating and applying electrical shocks; the prompting unit is used for outputting cardiopulmonary resuscitation guiding information; The control device of claim 15, wherein the control device is electrically connected to the electrode pad, defibrillation circuit and prompt unit.
17. An electronic device, comprising: A processor; a memory for storing the processor-executable instructions; Wherein the processor is adapted to perform the control method of any of the preceding claims 1 to 14.
18. A computer readable storage medium having stored thereon computer executable instructions, which when executed by a processor implement the control method of any of claims 1 to 14.
19. A computer program product, characterized in that the computer program product comprises a computer program which, when executed by a processor, implements the control method according to any one of claims 1 to 14.

Description

Automatic external defibrillator, control method, control device, electronic equipment, computer medium and product thereof Technical Field The present application relates to the field of automatic external defibrillators, and in particular to an automatic external defibrillator, a control method thereof, a self-control device, an electronic apparatus, a computer-readable storage medium, and a computer program product. Background An Automated External Defibrillator (AED) is a critical public emergency equipment designed initially to provide timely shock defibrillation and cardiopulmonary resuscitation (CPR) guidance for patients with cardiac arrest. Currently, the mainstream AED products generally employ a standardized, preprogrammed rescue protocol. This procedure is typically solidified in the device logic following a fixed cycle of "cardioversion-shock defibrillation (if needed) -CPR compressions", where the CPR phase has a preset, uninterrupted duration (e.g., about two minutes). Although this fixation procedure design aims at standardizing the rescue operation, the adaptation problem of the fixation procedure is exposed during the dynamic process of the actual emergency, especially when the physiological state of the patient is changed. For example, when a patient is restored to spontaneous circulation via primary treatment, their clinical needs have shifted from active compression interventions to continuous resting monitoring. However, conventional AEDs cannot sense this state change or the patient's original chest has a wound, and still mechanically output CPR prompts, causing ineffective disturbance or even exacerbating the injury. More importantly, even if the patient's heart rhythm is again worsened to a shockable state during CPR compressions, subject to a fixed flow design, the device cannot immediately interrupt compressions for heart rhythm analysis and defibrillation preparation, and must wait for the end of the current CPR phase (typically set for about 2 minutes), which results in valuable rescue time (four minutes for gold rescue) being delayed. Therefore, how to flexibly adapt the working logic of the AED to the real-time state change and patient condition in the resuscitation process of the patient, avoid the interference and potential injury caused by ineffective prompt, and ensure the instant response capability to the repeated condition of the patient, especially when the patient has recovered from spontaneous circulation after one or more defibrillation successes, so that CPR is not needed again, but the patient's rhythm condition still needs to be continuously monitored, and how to prevent the repeated deterioration of the rhythm is a problem to be solved in the prior art. Disclosure of Invention The first aspect of the application provides a control method of an automatic external defibrillator, which comprises the steps of conducting heart rhythm analysis on a patient during operation of the automatic external defibrillator, controlling the automatic external defibrillator to maintain in a first working mode, or controlling the automatic external defibrillator to enter the first working mode when the state of the patient meets a first condition or a switching instruction of a user exists based on the heart rhythm analysis, wherein the automatic external defibrillator executes a rescue procedure comprising alternating heart rhythm analysis stages and heart-lung resuscitation prompting stages in the first working mode, controlling the automatic external defibrillator to switch to a second working mode when the result of the heart rhythm analysis meets the second condition, and controlling the automatic external defibrillator to stop heart-lung resuscitation prompting and continuously execute heart rhythm analysis in the second working mode, and judging whether the switching condition is met or not. In the scheme, the technical problem that the traditional AED cannot adapt to the state change of the patient or the condition of the patient due to the fixed flow is solved by dynamically switching between the first working mode and the second working mode according to the real-time physiological state of the patient. In a specific embodiment of the first aspect of the present application, the step of controlling the automatic external defibrillator to switch to the second operation mode when the second condition is satisfied based on the result of the heart rhythm analysis, in the case where the confirmation operation instruction of the user or the patient state is determined to satisfy the set state, may include entering instruction receiving preparation when the automatic external defibrillator is in the first operation mode and the preset enabling condition is detected to be satisfied, receiving the confirmation operation instruction input by the user, and performing switching from the first operation mode to the second operation mode in response to the confirmation operation instru