发明名称 |
Method and apparatus for detecting heart sounds |
摘要 |
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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申请公布号 |
US4446873(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19810241388 |
申请日期 |
1981.03.06 |
申请人 |
SIEMENS GAMMASONICS, INC. |
发明人 |
GROCH, MARK W.;DOMNANOVICH, JAMES R. |
分类号 |
A61B5/024;A61B5/0456;A61B7/04;(IPC1-7):A61B5/04 |
主分类号 |
A61B5/024 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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