Method and apparatus for controlling the change of an escape int

Details Method and apparatus for controlling the change of an escape int Method and apparatus for controlling the change of an escape int

1996-05-31

1997-12-30

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 1362

Patent

active

057024243

ABSTRACT:
An active implantable medical device, notably a cardiac pacemaker or fibrillator, which detects the instantaneous cardiac rhythm, spontaneous or stimulated, of the bearer of the device, and delivers stimulation pulses with a variable escape interval and which increases gradually this escape interval. The gradual increase of the escape interval is obtained by memorizing information corresponding to the evolution of the cardiac rhythm sensed by a conventional detection circuit over a first time period, wherein the escape interval to be adjusted is later in time to the memorized information, notably by determining a variable rate of increase of the escape interval, which variable rate is essentially determined as a function of the memorized information, and/or by operating an integration of the previously detected cardiac rhythm.

REFERENCES:
patent: 3693626 (1972-09-01), Cole
patent: 4941471 (1990-07-01), Mehrz
patent: 5271394 (1993-12-01), Girodo et al.
patent: 5330513 (1994-07-01), Nichols et al.
patent: 5527347 (1996-06-01), Shelton et al.
patent: 5534017 (1996-07-01), van Krieken et al.

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