Dual channel cardiac pacer isolation circuit

Details Dual channel cardiac pacer isolation circuit Dual channel cardiac pacer isolation circuit

1982-05-05

1984-09-11

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

044704186

ABSTRACT:
Interchannel crosstalk in an existing dual channel pacer designed for bipolar leads is reduced by inserting a switching circuit between the pacing leads and the pacer terminals. In one embodiment, in each channel an isolation resistance and buffer amplifier in series with the lead electrodes, respectively, are shunted during stimulation. In another embodiment, the lead electrodes are connected to a pair of differential amplifiers which are bypassed during stimulation on a given channel.

REFERENCES:
patent: 3135264 (1964-06-01), Tischler et al.
patent: 3669120 (1972-01-01), Nielsen
patent: 3903897 (1975-09-01), Woollons et al.
patent: 3920024 (1975-11-01), Bowers
patent: 3985142 (1976-10-01), Wickham
patent: 4248238 (1981-02-01), Joseph
patent: 4300566 (1981-11-01), Stindt et al.

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