Method and apparatus for monitoring a timed failure condition re

Details Method and apparatus for monitoring a timed failure condition re Method and apparatus for monitoring a timed failure condition re

1976-03-08

1978-06-27

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

040968650

ABSTRACT:
A pacer for cardiac pacing and condition monitoring in which the electrical characteristics of the pacer are altered upon a temporary or permanent change in monitored conditions, such as the failures defined as a "loss of capture" or a "failure to sense", in which the timed relationship between the pacer signal generator and the cardiac signal is monitored to indicate detection of failure condition. The monitor acts to provide both increased stimulus to recover capture and to provide warning pulses indicating loss of capture or failure to sense, which are sufficiently discernible upon an electrocardiogram to enable later diagnosis, even after self-correction. After diagnosis, the monitor can be reset to its original condition by means of an external control, such as a magnet. The unit may be surgically implanted or employed externally. Remote or patient operated local failure detectors can be employed with the pacer to automatically detect, indicate, and provide an alarm if any prior intermittent sensing or capture failure occurred.

REFERENCES:
patent: 3651799 (1972-03-01), Daynard
patent: 3662759 (1972-05-01), Daybolt
patent: 3669120 (1972-06-01), Nielsen
patent: 3703900 (1972-11-01), Holznagel
patent: 3742938 (1973-07-01), Stern
patent: 3756246 (1973-09-01), Thaler et al.
patent: 3782367 (1974-01-01), Hochberg et al.
patent: 3833005 (1974-09-01), Wingrove
patent: 3920024 (1975-11-01), Bowers
patent: 3949758 (1976-04-01), Jirax

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