Cardiovascular risk grading early warning method based on pulse wave form analysis

Abstract

The invention discloses a cardiovascular risk grading early warning method based on pulse wave form analysis. Based on a bone conduction hearing aid device integrated with a superficial temporal artery pulse monitoring function, the following steps are executed: continuously collecting pulse signals of a superficial temporal artery of a user; the collected pulse signals are analyzed in real time, feature parameters are extracted, and the feature parameters comprise basic parameters, morphological parameters and abnormal events; according to different characteristic parameters, the risk is divided into three levels, namely, first-level early warning: light abnormity is not needed, and emergency intervention is not needed; secondary early warning: suggesting recent doctor seeing if moderate abnormality occurs; three-pole early warning: in case of serious abnormity, first aid needs to be immediately carried out; and triggering a corresponding response measure according to the risk level. According to the invention, through three-level grading and differential response, traceability of slight abnormity is ensured, and timely intervention of emergency situations is also ensured.

Description

Technical Field

[0001] This invention relates to the field of pulse analysis technology, and in particular to a cardiovascular risk grading and early warning method based on pulse wave morphology analysis. Background Technology

[0002] This paper addresses the problem of existing health monitoring devices either failing to report alerts or issuing false alarms, and proposes a tiered early warning method. Existing devices often treat all anomalies indiscriminately, causing users to become desensitized to frequent, minor alerts, which are then ignored during genuine emergencies. Summary of the Invention

[0003] According to an embodiment of the present invention, a cardiovascular risk grading and early warning method based on pulse wave morphology analysis is provided, wherein a bone conduction hearing aid with integrated superficial temporal artery pulse monitoring function performs the following steps: Continuously collect pulse signals from the user's superficial temporal artery; The system analyzes the collected pulse signals in real time and extracts feature parameters, which include basic parameters, morphological parameters, and abnormal events. Based on different characteristic parameters, the risk is divided into three levels, namely: Level 1 warning: Mild abnormality, no emergency intervention required; Level 2 warning: Moderate abnormalities, medical attention recommended soon; Level 3 warning: Severe abnormality, immediate emergency medical attention required; The corresponding response measures are triggered based on the risk level.

[0004] Furthermore, the continuous acquisition of the user's superficial temporal artery pulse signal specifically involves: continuously acquiring the user's superficial temporal artery pulse signal through the pulse sensor modules at the front end of the left and right ear-hook-type main body of the bone conduction hearing aid.

[0005] Furthermore, the real-time analysis of the acquired pulse signals and the extraction of feature parameters are specifically achieved by using a microprocessor on the bone conduction hearing aid to analyze the acquired pulse signals in real time and extract feature parameters.

[0006] Furthermore, the basic parameters include: instantaneous heart rate, average heart rate, and heart rate variability (HRV). Morphological parameters include: the slope of the rising limb of the pulse wave, the ratio of the dicrotic wave amplitude to the main wave amplitude, and the pulse wave area; Abnormal events include: premature beats, tachycardia / bradycardia, atrial fibrillation, absent pulse waves, and bilateral asymmetry.

[0007] Furthermore, the characteristic parameters corresponding to the Level 1 warning are: occasional premature beats, mild tachycardia, and persistently low heart rate variability (HRV); The characteristic parameters corresponding to the Level II warning are: first episode of atrial fibrillation, persistent bradycardia, and persistent bilateral asymmetry. The characteristic parameters corresponding to Level III warning are: cardiac arrest, severe bradycardia, severe tachycardia, and sudden disappearance of pulse wave.

[0008] Furthermore, the specific response measures triggered based on the risk level are as follows: Level 1 warning corresponds to Level 1 response: A gentle prompting tone is emitted through the bone conduction vibrator unit at the front of the left and right ear hooks of the bone conduction hearing aid, and a notification is pushed to the mobile APP through the Bluetooth module on the bone conduction hearing aid, suggesting rest or measuring blood pressure. Level 2 warning corresponds to Level 2 response: The bone conduction vibrator unit at the front of the left and right ear hooks of the bone conduction hearing aid emits a medium-intensity warning sound and pushes a detailed warning report to the mobile APP via Bluetooth module, including the type of abnormality, the time of occurrence, and trend charts; The three-level warning corresponds to a three-level response: a high-intensity emergency alert is emitted to the user through the bone conduction vibrator unit at the front of the left and right ear hooks of the bone conduction hearing aid, lasting for S1 seconds; if the user is conscious, they can actively cancel the false alarm; if the user is unconscious and does not actively cancel it within S1 seconds, the positioning command is activated to obtain the user's current precise location and timestamp; at the same time, a distress message is sent to the emergency contact.

[0009] Furthermore, activating the positioning command to obtain the user's current precise location and timestamp specifically involves: automatically activating the GPS / BeiDou positioning module through the microprocessor on the bone conduction hearing aid to obtain the user's current precise location and timestamp.

[0010] Furthermore, sending a distress message to an emergency contact involves: activating the communication channel via the microprocessor on the bone conduction hearing aid to send the distress message; connecting to a mobile app via Bluetooth; and the app automatically dialing the preset emergency contact number, playing a pre-recorded voice message, and sending a text message containing location information.

[0011] Furthermore, when a Level 3 response is triggered, the pulse wave signal continues to be monitored, and the status is updated every 30 seconds. If the pulse wave signal recovers, a notification to cancel the alarm is automatically sent; if the pulse wave signal continues to disappear, a location update is sent again every 5 minutes.

[0012] A cardiovascular risk grading and early warning method based on pulse wave morphology analysis according to an embodiment of the present invention has the following beneficial effects: Fully automatic response, no user operation required: When a user experiences cardiac arrest and loses consciousness, the device automatically completes detection, location and distress call without any user intervention, shortening the distress call time from "unable to call for help" to "automatic second-level response".

[0013] Accurate judgment and reduced false alarms: The system adopts a multi-condition comprehensive judgment (signal disappearance, extremely low heart rate, amplitude decay) and combines it with a short-term cancelable window, which ensures both sensitivity and avoids false triggering.

[0014] Dual-channel communication guarantee: It supports both Bluetooth connection to mobile phones and built-in cellular network to ensure that distress messages can be sent under any circumstances, making it especially suitable for elderly people living alone and outdoor enthusiasts.

[0015] Continuous location updates: After a distress call is made, the location is continuously updated to facilitate dynamic tracking by search and rescue personnel and improve the success rate of rescue.

[0016] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0017] Figure 1 This is a flowchart of a cardiovascular risk grading and early warning method based on pulse wave morphology analysis according to an embodiment of the present invention.

[0018] Figure 2 This describes the structure of a bone conduction hearing aid in an automatic cardiac arrest detection and emergency response method based on superficial temporal artery pulse waves, according to an embodiment of the present invention. Figure 1 .

[0019] Figure 3 This describes the structure of a bone conduction hearing aid in an automatic cardiac arrest detection and emergency response method based on superficial temporal artery pulse waves, according to an embodiment of the present invention. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the bone conduction hearing aid device in an automatic detection and emergency response method for cardiac arrest based on the superficial temporal artery pulse wave according to an embodiment of the present invention. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0022] First, combine Figures 1-4 This invention describes a cardiovascular risk grading and early warning method based on pulse wave morphology analysis, which is used for grading and early warning of cardiovascular risks and has a wide range of applications.

[0023] like Figures 1-4As shown in the figure, an embodiment of the present invention provides a cardiovascular risk grading and early warning method based on pulse wave morphology analysis. This method is implemented using a bone conduction hearing aid with integrated superficial temporal artery pulse monitoring function. The bone conduction hearing aid includes a left ear hook body 100, a right ear hook body 200, and a main control box 400. The front ends of the left ear hook body 100 and the right ear hook body 200 are respectively provided with an integrated bone conduction oscillator unit 301 and a pulse sensor module 302. The main control box 400 contains a microprocessor 500, a Bluetooth module 600, and a GPS / BeiDou positioning module 700. When worn, the pulse sensor module 302 on the left ear hook body 100 and the right ear hook body 200 is located above and in front of the tragus, conforming to the skin surface of the superficial temporal artery area. The bone conduction hearing aid also has a built-in cellular network.

[0024] The specific steps are as follows: like Figure 1 As shown, in S1, the pulse signal of the user's superficial temporal artery is continuously acquired. Specifically, the pulse sensor module 302 at the front end of the left ear hook body 100 and the right ear hook body 200 of the bone conduction hearing aid continuously acquires the pulse signal of the user's superficial temporal artery.

[0025] like Figure 1 As shown, in S2, the acquired pulse signal is analyzed in real time, and feature parameters are extracted. These feature parameters include basic parameters, morphological parameters, and abnormal events. Specifically, the microprocessor 500 on the bone conduction hearing aid analyzes the acquired pulse signal in real time and extracts feature parameters.

[0026] It should be noted that the basic parameters include: instantaneous heart rate, average heart rate, and heart rate variability (HRV); morphological parameters include: slope of the rising limb of the pulse wave, ratio of dicrotic wave amplitude to main wave amplitude, and pulse wave area; abnormal events include: premature beats, tachycardia / bradycardia, atrial fibrillation, missing pulse waves, and bilateral asymmetry.

[0027] like Figure 1 As shown, in S3, the risk is divided into three levels based on different feature parameters: Level 1 warning: Mild abnormality, no emergency intervention required; corresponding characteristic parameters are: occasional premature beats, mild tachycardia (100-120 beats / min), and persistently low heart rate variability (HRV); Level 2 warning: Moderate abnormality, medical attention recommended soon; corresponding characteristic parameters are: first episode of atrial fibrillation, persistent bradycardia (40-50 beats / min), and persistent bilateral asymmetry. Three-level warning: Severe abnormality, requiring immediate emergency treatment; the corresponding characteristic parameters are: cardiac arrest, severe bradycardia (<30 beats / min), severe tachycardia (>180 beats / min), and sudden disappearance of pulse wave.

[0028] like Figure 1 As shown, in S4, corresponding response measures are triggered based on the risk level. Specifically: Level 1 warning corresponds to Level 1 response: The bone conduction vibrator unit 301 at the front end of the left ear hook body 100 and the right ear hook body 200 of the bone conduction hearing aid emits a gentle prompt tone, and pushes a notification to the mobile APP through the Bluetooth module 600 on the bone conduction hearing aid, suggesting rest or measuring blood pressure. The data is automatically recorded for subsequent analysis.

[0029] Level 2 warning corresponds to Level 2 response: The bone conduction vibrator unit 301 at the front end of the left ear hook-type main body 100 and the right ear hook-type main body 200 of the bone conduction hearing aid emits a medium intensity warning sound, and pushes a detailed warning report to the mobile APP via Bluetooth module 600, including the abnormality type, occurrence time, and trend chart; it automatically generates a heart rate report for the past 24 hours, which can be sent to the family doctor via the APP.

[0030] The three-level warning corresponds to a three-level response: The bone conduction vibrator unit 301 at the front end of the left ear hook body 100 and the right ear hook body 200 of the bone conduction hearing aid emits a high-intensity emergency warning sound to the user for S1 seconds (S1 seconds is 10 seconds); if the user is conscious, they can actively cancel the false alarm; if the user is unconscious and does not actively cancel it within S1 seconds, the positioning command is activated to obtain the user's current precise location and timestamp; at the same time, a distress message is sent to the emergency contact.

[0031] Furthermore, in this embodiment, activating the positioning command and obtaining the user's current precise location and timestamp specifically involves: automatically activating the GPS / BeiDou positioning module 700 through the microprocessor 500 on the bone conduction hearing aid to obtain the user's current precise location and timestamp.

[0032] Furthermore, in this embodiment, sending a distress message to an emergency contact specifically involves: activating the communication channel via the microprocessor 500 on the bone conduction hearing aid to send the distress message; connecting to a mobile app via the Bluetooth module 600; and having the app automatically dial a preset emergency contact number, play a pre-recorded voice message, and send a text message containing location information.

[0033] Furthermore, in this embodiment, when a level 3 response is triggered, the pulse wave signal continues to be monitored, and the status is updated every 30 seconds. If the pulse wave signal recovers, a notification to cancel the alarm is automatically sent; if the pulse wave signal continues to disappear, a location update is sent again every 5 minutes.

[0034] Above, refer to Figures 1-4 A cardiovascular risk grading and early warning method based on pulse wave morphology analysis according to an embodiment of the present invention is described, which has the following beneficial effects: Fully automatic response, no user operation required: When a user experiences cardiac arrest and loses consciousness, the device automatically completes detection, location and distress call without any user intervention, shortening the distress call time from "unable to call for help" to "automatic second-level response".

[0035] Accurate judgment and reduced false alarms: The system adopts a multi-condition comprehensive judgment (signal disappearance, extremely low heart rate, amplitude decay) and combines it with a short-term cancelable window, which ensures both sensitivity and avoids false triggering.

[0036] Dual-channel communication guarantee: It supports both Bluetooth connection to mobile phones and built-in cellular network to ensure that distress messages can be sent under any circumstances, making it especially suitable for elderly people living alone and outdoor enthusiasts.

[0037] Continuous location updates: After a distress call is made, the location is continuously updated to facilitate dynamic tracking by search and rescue personnel and improve the success rate of rescue.

[0038] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A cardiovascular risk grading and early warning method based on pulse wave morphology analysis, characterized in that, Bone conduction hearing aids based on integrated superficial temporal artery pulse monitoring function perform the following steps: Continuously collect pulse signals from the user's superficial temporal artery; The system analyzes the collected pulse signals in real time and extracts feature parameters, which include basic parameters, morphological parameters, and abnormal events. Based on different characteristic parameters, the risk is divided into three levels, namely: Level 1 warning: Mild abnormality, no emergency intervention required; Level 2 warning: Moderate abnormalities, medical attention recommended soon; Level 3 warning: Severe abnormality, immediate emergency medical attention required; The corresponding response measures are triggered based on the risk level.

2. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 1, characterized in that, The continuous acquisition of the user's superficial temporal artery pulse signal specifically involves: continuously acquiring the user's superficial temporal artery pulse signal through the pulse sensor modules at the front end of the left and right ear-hook-type main body of the bone conduction hearing aid.

3. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 1, characterized in that, The real-time analysis and acquisition of pulse signals, and the extraction of feature parameters, specifically involves: analyzing the acquired pulse signals in real time through a microprocessor on the bone conduction hearing aid and extracting feature parameters.

4. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 1 or 3, characterized in that, The basic parameters include: instantaneous heart rate, average heart rate, and heart rate variability (HRV). The morphological parameters include: the slope of the rising limb of the pulse wave, the ratio of the dicrotic wave amplitude to the main wave amplitude, and the pulse wave area; The abnormal events include: premature beats, tachycardia / bradycardia, atrial fibrillation, absent pulse waves, and bilateral asymmetry.

5. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 4, characterized in that, The characteristic parameters corresponding to the first-level warning are: occasional premature beats, mild tachycardia, and persistently low heart rate variability (HRV); The characteristic parameters corresponding to the Level II early warning are: first episode of atrial fibrillation, persistent bradycardia, and persistent bilateral asymmetry. The characteristic parameters corresponding to the three-level warning are: cardiac arrest, severe bradycardia, severe tachycardia, and sudden disappearance of pulse wave.

6. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 1, characterized in that, The specific response measures triggered according to the risk level are as follows: Level 1 warning corresponds to Level 1 response: A gentle prompting tone is emitted through the bone conduction vibrator unit at the front of the left and right ear hooks of the bone conduction hearing aid, and a notification is pushed to the mobile APP through the Bluetooth module on the bone conduction hearing aid, suggesting rest or measuring blood pressure. Level 2 warning corresponds to Level 2 response: The bone conduction vibrator unit at the front of the left and right ear hooks of the bone conduction hearing aid emits a medium-intensity warning sound and pushes a detailed warning report to the mobile APP via Bluetooth module, including the type of abnormality, the time of occurrence, and trend charts; Level 3 warning corresponds to Level 3 response: The bone conduction vibrator unit at the front of the left and right ear hooks of the bone conduction hearing aid emits a high-intensity emergency warning sound to the user for 1 second. If the user is aware of the error, they can actively cancel the false alarm. If the user is unaware and does not actively cancel the location within S1 seconds, the location command will be activated to obtain the user's current precise location and timestamp; at the same time, a distress message will be sent to the emergency contact.

7. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 6, characterized in that, The activation positioning command to obtain the user's current precise location and timestamp specifically involves: automatically activating the GPS / BeiDou positioning module through the microprocessor on the bone conduction hearing aid to obtain the user's current precise location and timestamp.

8. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 6, characterized in that, The process of sending a distress message to an emergency contact involves: activating a communication channel via the microprocessor on the bone conduction hearing aid to send the distress message; connecting to a mobile app via Bluetooth; and the app automatically dialing a preset emergency contact number, playing a pre-recorded voice message, and sending a text message containing location information.

9. The cardiovascular risk grading and early warning method based on pulse wave morphology analysis as described in claim 6, characterized in that, When a Level 3 response is triggered, the pulse wave signal continues to be monitored, and the status is updated every 30 seconds. If the pulse wave signal recovers, a notification to cancel the alarm is automatically sent. If the pulse wave signal continues to disappear, a location update is sent again every 5 minutes.

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