Atrial rate sensitive cardiac pacer apparatus

Details Atrial rate sensitive cardiac pacer apparatus Atrial rate sensitive cardiac pacer apparatus

1980-07-21

1982-02-02

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

043134424

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 foresaid 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: 4009721 (1977-03-01), Alcidi
patent: 4091817 (1978-05-01), Thaler

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