Pacemaker triggering coupling circuit

Details Pacemaker triggering coupling circuit Pacemaker triggering coupling circuit

1980-04-30

1982-08-17

Kamm, William E.

Surgery

Truss

Pad

A61N 130

Patent

active

043444377

ABSTRACT:
An improved atrial synchronous pacemaker and control circuit therefor having a minimum ventricular rate backup mode includes circuitry for preventing occurrence of a closely coupled ventricular pulse which might otherwise occur during the vulnerable repolarization period of the ventricles. A triggering coupling circuit includes a variable or programmable upper rate limit/minimum escape interval timer and switching means therefor for switching to a relatively low maximum rate/minimum escape interval condition while pacing in the ventricular backup mode, and for switching to a higher programmed maximum rate/minimum escape interval limit value while pacing in atrial synchronous mode.

REFERENCES:
patent: 3903897 (1975-09-01), Woollons et al.
patent: 4038991 (1977-08-01), Walters
patent: 4059116 (1977-11-01), Adams
patent: 4060090 (1977-11-01), Lin et al.
patent: 4091817 (1978-05-01), Thaler

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