Atrium-controlled heart pacemaker

Details Atrium-controlled heart pacemaker Atrium-controlled heart pacemaker

1986-09-24

1987-12-22

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

047140798

ABSTRACT:
An atrium-controlled heart pacemaker operates using set parameters including a smallest synchronous interval (SSI) between two stimulation pulses, a minimum atrial-ventricular delay time (AVmin) and a maximum atrial-ventricular delay time (AVmax). A control unit, dependent upon the appearance of an atrial signal, controls operation of the pacemaker such that the pacemaker operates with a variable pulse rate (DDD mode) when the atrial signal appears after a point in time SSI-AVmin, operates the pacemaker with a highest synchronous pulse rate when the atrial signal is between the points in time SSI-AVmin and SSI-AVmax, and causes no stimulation pulses to be emitted when the atrial signal appears before the point in time SSI-AVmax.

REFERENCES:
patent: 4312355 (1982-01-01), Funke
patent: 4363325 (1982-12-01), Roline et al.
patent: 4541430 (1985-09-01), Elmqvist et al.
patent: 4554921 (1985-11-01), Boute et al.
patent: 4574437 (1986-03-01), Segerstad et al.
patent: 4624260 (1986-11-01), Baker, Jr. et al.
"Der Diagnostische Multiprogrammierbare Physiologische Impulsgenerator 674".

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