发明名称 |
Biopotential signal source separation using source impedances |
摘要 |
Cardiac methods and devices that separate signals using at least two composite signals acquired at least at two input impedances. A target source impedance may be selected, and a cardiac signal may be separated from composite signals using the selected target source impedance. Medical systems include a cardiac device having a housing that provides amplification circuitry configured to have a first amplifier input impedance and a second amplifier input impedance, such as using two separate circuits or switching between two input impedances. One or more electrode assemblies are coupled to the amplification circuitry. A signal processor is provided in the housing configured to separate a source signal using a first composite signal detected at the first input impedance and a second composite signal detected at the second input impedance. The phase response of the first input amplifier circuit is about equal to that of the second input amplifier circuit.
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申请公布号 |
US7996071(B2) |
申请公布日期 |
2011.08.09 |
申请号 |
US20090494768 |
申请日期 |
2009.06.30 |
申请人 |
CARDIAC PACEMAKERS, INC. |
发明人 |
KAMATH APURV;WAGNER DARREL ORVIN;HAEFNER PAUL;BROCKWAY MARINA |
分类号 |
A61B5/04;A61B5/042;A61B5/0428;A61B5/0464;A61N1/365;A61N1/39 |
主分类号 |
A61B5/04 |
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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