Atrial rate sensitive cardiac pacer circuit

Details Atrial rate sensitive cardiac pacer circuit Atrial rate sensitive cardiac pacer circuit

1980-07-21

1981-11-03

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

042980070

ABSTRACT:
An electrical pacer device which responds to cardiac demand so as to alter the cardiac output in a fashion to satisfy that demand. Changes in the fundamental period of the atrial electrical cycle are detected and averaged over a predetermined time interval and the resulting control signal is used to raise and lower the ventricular heart rate to increase and decrease the aforesaid cardiac output. At the same time, means are provided for continuously driving the ventricular rate toward a predetermined lower rate (the at rest rate) on a time cycle which is significantly longer than the above-mentioned predetermined time interval.

REFERENCES:
patent: 3693626 (1972-09-01), Cole
patent: 3945387 (1976-03-01), Adams
patent: 4091817 (1978-05-01), Thaler
patent: 4202341 (1980-05-01), Blaser

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