Method and apparatus for detecting heart sounds

Details Method and apparatus for detecting heart sounds Method and apparatus for detecting heart sounds

1981-03-06

1984-05-08

Kamm, William E.

Surgery

Truss

Pad

A61B 504

Patent

active

044468733

ABSTRACT:
From a heart sound signal input the occurrence of a first occurring heart sound is detected. Thereupon a predetermined heart sound enable window time is established, which for a first detection cycle is set to approximately the diastolic interval for the maximum heart rate to be detected. If a second heart sound occurs within this heart sound enable window time, this second heart sound is detected as a systole heart sound. The first heart sound may be detected as a diastole heart sound. If a second heart sound does not occur within the heart sound enable window time the procedure is repeated with increasing heart sound enable time as long as a second heart sound occurs within an increased heart sound enable window time.

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