发明授权
- 专利标题： Sensing rate of change of pressure in the left ventricle with an implanted device
- 专利标题（中）： 用植入装置感测左心室压力变化率
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申请号： US13605397申请日： 2012-09-06
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公开(公告)号： US08535235B2公开(公告)日： 2013-09-17
- 发明人: Gerrard M. Carlson , Krzysztof Z. Siejko , Ramesh Wariar , Marina V. Brockway
- 申请人： Gerrard M. Carlson , Krzysztof Z. Siejko , Ramesh Wariar , Marina V. Brockway
- 申请人地址： US MN St. Paul
- 专利权人： Cardiac Pacemakers, Inc.
- 当前专利权人： Cardiac Pacemakers, Inc.
- 当前专利权人地址： US MN St. Paul
- 代理机构： Schwegman Lundberg & Woessner, P.A.
- 主分类号： A61B5/02
- IPC分类号： A61B5/02
摘要：
An implantable device and method for monitoring S1 heart sounds with a remotely located accelerometer. The device includes a transducer that converts heart sounds into an electrical signal. A control circuit is coupled to the transducer. The control circuit is configured to receive the electrical signal, identify an S1 heart sound, and to convert the S1 heart sound into electrical information. The control circuit also generates morphological data from the electrical information. The morphological data relates to a hemodynamic metric, such as left ventricular contractility. A housing may enclose the control circuit. The housing defines a volume coextensive with an outer surface of the housing. The transducer is in or on the volume defined by the housing.
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