Surgery – Truss – Pad
Patent
1978-09-27
1979-08-14
Kamm, William E.
Surgery
Truss
Pad
A61N 136
Patent
active
041642279
ABSTRACT:
A device for automatically indicating a rate failure condition in a pacer monitoring the intrinsic pacer rate in both demand and fixed rate modes, including a first limit circuit preset at a low level of activity coupled to the monitoring means, and a second limit circuit preset at a high level of activity coupled to the monitoring means. A first switch is connected to the first limit circuit, and a second switch is connected to the second limit circuit. The first limit circuit responds to the combined rate of pacer and spontaneous activity falling below a preset level by placing the first switch in a switched condition, and the second limit circuit responds to the rate of pacer activity exceeding a preset level by placing the second switch means in a switched condition. Indicating means converts the switched conditions to distinguishable marking pulse signal for later clinical electrocardiogram detection.
REFERENCES:
patent: 3612041 (1971-10-01), Ragsdale
patent: 3742937 (1973-07-01), Manuel et al.
patent: 3782367 (1974-01-01), Hochberg et al.
patent: 3832994 (1974-09-01), Bicher et al.
patent: 4018219 (1977-04-01), Hojaiban
patent: 4055189 (1977-10-01), Auerbach et al.
patent: 4088139 (1978-05-01), Auerbach
patent: 4096865 (1978-06-01), Auerbach et al.
Kamm William E.
Medalert Corporation
Yuter S. C.
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