发明名称 |
DEMAND CARDIAC PACEMAKER HAVING REDUCED POLARITY DISPARITY |
摘要 |
<p>A cardiac pacemaker of the type responsive to heart activity to affect the operation of the pacemaker. Detecting circuitry is provided having a differential input and an essentially polarity independent degree of response to sensed signals. A single polarity output signal is provided representative of sensed signals of either polarity. In a preferred embodiment, a differential input and differential output preamplifier is responsive to sensed signals to provide output signals of opposite polarity but like absolute value. An absolute value circuit responds to the opposite polarity signals to provide a single polarity output signal, the output signal being the same polarity without regard to the polarity of the sensed signals.</p> |
申请公布号 |
CA1145405(A) |
申请公布日期 |
1983.04.26 |
申请号 |
CA19790339132 |
申请日期 |
1979.11.05 |
申请人 |
MEDTRONIC, INC. |
发明人 |
THOMPSON, DAVID L.;HARTLAUB, JEROME T.;STEIN, MARC T. |
分类号 |
A61N1/365;A61N1/36;(IPC1-7):A61N1/36 |
主分类号 |
A61N1/365 |
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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