Patent ID: 7998083
Filing Date: 2011-08-16
Classification: A61B

Abstract:
1. A device for automatically detecting heart valve damage of a heart, comprising: a reference database for storing relationship data between accumulated clinical heart valve damage and heart tones; three heart tone microphones for recording heart tones; a heart tone separating unit connected with said heart tone microphones, the heart tone separating unit separating said recorded heart tones into heart tone signals respectively corresponding to the aortic valve, the pulmonary valve, the tricuspid valve and the mitral valve of the heart based on timing characteristics and related techniques; a heart tone signal digital processing unit connected with said heart tone separating unit, the heart tone signal digital processing unit processing said heart tone signals of the heart valves into corresponding sampling signals; a convolution unit connected with said heart tone signal digital processing unit, the convolution unit processing said sampling signals for producing corresponding system transfer functions through a convolution method; a comparison unit connected with said convolution unit and adapted to receive data from said reference database, the comparison unit separately comparing said system transfer functions to the received data to determine the heart valve damage; and a display connected with said signal processing system for displaying information of the heart valve damage.