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Vegetative nerve diagnosis system based on heart sound

A technology of autonomic and diagnostic systems, applied in the field of monitoring autonomic nerves, can solve problems such as the inconvenience of ECG signal measurement, achieve rapid diagnosis and information transmission, improve survival rate and quality of life, and avoid danger

Inactive Publication Date: 2003-07-02
LEADTEK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, when the ECG signal analysis is used to find out the variation of the heartbeat frequency, it can indirectly provide an index for evaluating the autonomic nervous system, but the measurement of the ECG signal is relatively inconvenient

Method used

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  • Vegetative nerve diagnosis system based on heart sound
  • Vegetative nerve diagnosis system based on heart sound
  • Vegetative nerve diagnosis system based on heart sound

Examples

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Embodiment Construction

[0023] figure 2 It is a flowchart describing a method for measuring and evaluating heart rate variability in a preferred embodiment of the present invention. The heart rate variability of the present invention is obtained by recording heart sound signals (phonocardiogram). See figure 2 , place a microphone on the subject to collect heart sound signals for 3 to 5 minutes. The microphone is placed on the left chest of the subject to collect heart sound. A stethoscope can also be used to collect heart sound. After the heart sound signal is amplified by an amplifier and filtered by a band-pass filter, it is sent to an analog-to-digital converter for 1024 or 2048 data samples per second. A computer is used for sampling and subsequent analysis. The computer can be a home computer, a notebook computer, a PDA, or a microchip used in a mobile phone or a watch. The computer contains a microprocessor and an appropriate amount of memory, and the digital signal is simultaneously store...

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Abstract

A vegetative nerve diagnosing system based on heart sounds features that the heart sounds are collected and then processed by a computer to analyze the particular parameters about the variability of heart rhythm through a cardiophonogram. The physiologic or pathologic state of a user can be easily acquired by arranging a microphone or a stethoscope on the user's body. Its advantage is high speed.

Description

technical field [0001] The invention relates to a method and a device for monitoring autonomic nerves, and in particular to a method and a device for monitoring autonomic nerves by measuring heart rate variability (HRV) based on heart sound records (phonocardiogram). Background technique [0002] The autonomic nervous system (Autonomic Nervous System, ANS) is responsible for regulating the functions of various organs and homeostasis, such as heartbeat, digestion, breathing and blood circulation, that is, most of its functions are not controlled by the will. These involuntary functions are controlled by the interaction of two parts of the autonomic nervous system - the sympathetic and the parasympathetic. Most of the organs receive the information from the two, maintain their proper functions under normal conditions and adjust to the needs of life. When the autonomic nervous system is out of balance, it may cause a variety of acute or chronic diseases, such as coronary heart...

Claims

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Application Information

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IPC IPC(8): A61B5/00G06F19/00
Inventor 郭博昭
Owner LEADTEK
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