Development of heart sound signal detection system based on USB interface.
- Author:
An JI
1
;
Xingming GUO
;
Weizhen GUO
;
Shouzhong XIAO
Author Information
1. College of Bioengineering, Chongqing University, Chongqing 400044, China.
- Publication Type:Journal Article
- MeSH:
Computer-Aided Design;
Equipment Design;
instrumentation;
Heart Sounds;
physiology;
Humans;
Phonocardiography;
instrumentation;
methods;
Signal Processing, Computer-Assisted;
instrumentation
- From:
Journal of Biomedical Engineering
2008;25(5):1175-1177
- CountryChina
- Language:Chinese
-
Abstract:
This paper introduces a type of heart sound recording, analysis and processing system based on USB interface. The system consists of high performance sensor sampling heart sounds, the preprocessing circuit, the A/D conversion module and the USB based high-speed computer communications interface. The experiments show that it is noninvasive, convenient, inexpensive and rapid in detecting the cardiac contractility of patients with heart disease as well as of healthy subjects. This system has provided a reliable technical platform for evaluating the cardiac contractility reserve.
