Subcutaneous multi-electrode sensing system, method and pacer
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United States of America Patent
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Jul 26, 1994
Issued Date -
N/A
app pub date -
Dec 16, 1993
filing date -
Apr 5, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for providing an enhanced capability of detecting and gathering electrical cardiac signals via an array of relatively closely spaced subcutaneous electrodes (located on the body of an implanted device) which may be employed with suitable switching circuits, signal processors, and memory to process the electrical cardiac signals between any selected pair or pairs of the electrode array in order to provide a leadless, orientation insensitive means for receiving the electrical signal from the heart. This far-field EGM may be used to provide storage and analysis of arrhythmic events and to provide control signals for the delivery of various therapies including pacing, cardioversion and defibrillation therapies as well as the delivery of antiarrhythmic drugs, and, in the pacing context, to effect capture detection and automatic stimulation threshold adaption, recording of PMT episodes, measurement of refractory periods in order to set timing windows for antitachy pacing therapies, and as a control signal for use in adjusting pacing rate to physiologic demand.
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- 1273 Citation Count
- A61B Class
- 93.80 % this patent is cited more than
- 31 Age