Demand cardiac pacemaker having reduced polarity disparity

Details Demand cardiac pacemaker having reduced polarity disparity Demand cardiac pacemaker having reduced polarity disparity

1978-11-06

1981-06-30

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

042757371

ABSTRACT:
A cardiac pacemaker of the type responsive to a natural heart activity for affecting the operation of the pacemaker. Circuitry is provided which has an essentially polarity independent degree of response to sensed signals. In a preferred embodiment, the circuitry includes a differential input and a differential output, the output signals being of opposite polarity but of the same absolute value and being representative of sensed signals.

REFERENCES:
patent: 3345990 (1967-10-01), Berkovits
patent: 3949759 (1976-04-01), Brownlee et al.
patent: 4041953 (1977-08-01), Anderson et al.
patent: 4043347 (1977-08-01), Renirie

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