Demand pacer with programmable rate hysteresis

Details Demand pacer with programmable rate hysteresis Demand pacer with programmable rate hysteresis

1978-06-19

1979-10-02

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

041694805

ABSTRACT:
A demand pacer has a local memory element, programmable from a remote source, which detects whether or not the hysteresis rate adjustment is to be employed. When hysteresis is disabled, the pacer operates in the normal demand mode, at a rate optionally selected by the same memory. In the hysteresis mode, a flip-flop controls gating means, ultimately operable at conventional or hysteresis rates, ultimately for controlling the output amplifier. An input amplifier senses natural heart beat signals, and enables a gating means, which has been conditioned for hysteresis mode operation, to reset the flip-flop and in turn the output controlling gates.

REFERENCES:
patent: 3623486 (1971-11-01), Berkovits
patent: 3661157 (1972-05-01), Fyson et al.
patent: 3717153 (1973-02-01), Bowers
patent: 3794045 (1974-02-01), Thaler
patent: 3833005 (1974-09-01), Wingrove
patent: 3945387 (1976-03-01), Adams
patent: 3972334 (1976-08-01), Wickham
patent: 4030510 (1977-06-01), Bowers
patent: 4034347 (1977-08-01), Renirie
patent: 4049003 (1975-09-01), Walters et al.

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