Noise elimination and refractory period control in demand pacers

Details Noise elimination and refractory period control in demand pacers Noise elimination and refractory period control in demand pacers

1978-06-19

1979-11-06

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

041732308

ABSTRACT:
Oscillator pulses are coupled to a counter, the ultimate count interval of which causes an output amplifier to produce a stimulating pulse and also to reset itself. A refractory control flip-flop is also thereby reset, and blocks demand mode resetting pulses for the refractory period. A second counter is resettable by the input amplifier, and defines a count interval during which noise pulses are rejected. A second flip-flop is responsive to the second counter and to the refractory flip-flop selectively to reset the first counter based on demand pacing criteria.

REFERENCES:
patent: 3557796 (1971-01-01), Keller, Jr.
patent: 3903897 (1975-09-01), Woollows et al.
patent: 4043347 (1977-08-01), Renirie
patent: 4049003 (1977-09-01), Walters
patent: 4049004 (1977-09-01), Walters

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