Invention Grant
- Patent Title: Method and apparatus for discriminating cardiac signals in a medical device based on wavelet decomposition analysis
- Patent Title (中): 基于小波分解分析来鉴别医疗装置中的心脏信号的方法和装置
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Application No.: US11744484Application Date: 2007-05-04
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Publication No.: US07774063B2Publication Date: 2010-08-10
- Inventor: Raja N. Ghanem , Troy E. Jackson
- Applicant: Raja N. Ghanem , Troy E. Jackson
- Applicant Address: US MN Minneapolis
- Assignee: Medtronic, Inc.
- Current Assignee: Medtronic, Inc.
- Current Assignee Address: US MN Minneapolis
- Agent Michael C. Soldner
- Main IPC: A61N1/37
- IPC: A61N1/37
Abstract:
A method and device for detecting cardiac signals in a medical device that includes decomposing sensed cardiac signals using a wavelet function to form a corresponding wavelet transform, generating a first wavelet representation corresponding to the wavelet transform that is responsive to RR intervals of the sensed cardiac signals, generating a second wavelet representation that is not responsive to RR intervals associated with the sensed cardiac signals, determining a no lead failure zone in response to the first wavelet representation and the second wavelet representation, and distinguishing the cardiac event from a device failure in response to the determined no lead failure zone. The method and device may also include generating a wavelet representation corresponding to the wavelet transform that is not responsive to RR intervals of the sensed cardiac signals, determining RR intervals associated with the sensed cardiac signals, and determining a no lead failure zone in response to the wavelet representation and the determined RR intervals.
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Information query
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