Implantable cardiac defibrillator employing an improved sensing

Details Implantable cardiac defibrillator employing an improved sensing Implantable cardiac defibrillator employing an improved sensing

1989-05-19

1990-11-27

Cohen, Lee S.

Surgery

Truss

Pad

A61N 100

Patent

active

049728350

ABSTRACT:
An implantable cardiac defibrillator includes electrodes coupled to a patient's heart, a sensing system having inputs connected to the electrodes for sensing cardiac electrical signals from the atrial and/or ventricular channels, means for storing a charge, and means for delivering a shock to the heart. The sensing system includes switched capacitor means for amplifying the cardiac electrical signal with non-binary gain changing steps.

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patent: 4494551 (1985-01-01), Little, III et al.
patent: 4521743 (1985-06-01), Heimer
patent: 4819643 (1989-04-01), Menken
patent: 4830006 (1989-05-01), Halusk et al.

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