Relay circuit for cardiac pacemaker implant

Surgery – Truss – Pad

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A61N 136

Patent

active

044237332

ABSTRACT:
A relay circuit for a cardiac pacemaker having a stimulator implanted in a user. A first detector and a relay is involved for detecting and amplifying a cardiac wave, the first detector being capable of relaying the cardiac wave as a signal; a second detector and a relay is provided for detecting a stimulus signal of the stimulator of the pacemaker, the second detector being capable of relaying the stimulus signal; a cycle-to-cycle control receives signals from the first and second detectors for constructing a cycle-to-cycle wave signal of the cardiac and stimulus signals in accordance with a cardiac or physiological T wave and a stimulus R wave representation respectively of an electrocardiogram; a wave absence detector for detecting the absence of the cardiac wave or the stimulus wave in the cycle-to-cycle control, the wave absence detector being capable of relaying a wave absence signal; a receiver for receiving the wave absence signal and including a converter for translating the wave absence signal into a counteraction signal; and a counteractor for receiving the counteraction signal, including the provision of a signal for signaling a counteraction.

REFERENCES:
patent: 4088139 (1978-05-01), Auerbach
patent: 4226245 (1980-10-01), Bennett, Jr.
patent: 4228803 (1980-10-01), Rickards
patent: 4305396 (1981-12-01), Wittkampf et al.

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