Dual channel cardiac pacer isolation circuit

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

1982-05-05

1984-07-31

Kamm, William E.

Surgery

Truss

Pad

128419PS, A61N 136

Patent

active

044624077

ABSTRACT:
To prevent crosstalk between atrial and ventricular bipolar cardiac pacer leads, separate input/output circuits for the two channels are powered by respective isolated capacitors. In one embodiment, the capacitors are resistively coupled to the pacer battery for continuous charging. In another embodiment, one side of each capacitor is normally disconnected from the pacer battery. Charging switches momentarily connect one or the other capacitor directly to the battery in response to the output of the corresponding sense amplifier.

REFERENCES:
patent: 3135264 (1964-06-01), Tischler et al.
patent: 3209081 (1965-09-01), Ducote et al.
patent: 3669120 (1972-06-01), Nielsen
patent: 3698398 (1972-10-01), Berkovits
patent: 3903897 (1975-09-01), Woollons et al.
patent: 4114627 (1978-09-01), Lewyn et al.
patent: 4289134 (1981-09-01), Bernstein
patent: 4300566 (1981-11-01), Stindt et al.
patent: 4328807 (1982-05-01), Jirak et al.

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