Apnea monitoring system

Details Apnea monitoring system Apnea monitoring system

1984-10-12

1986-04-08

Howell, Kyle L.

Surgery

Truss

Pad

128716, 128723, 128696, 128706, A61B 504, A61B 505, A61B 508

Patent

active

045805750

ABSTRACT:
Apparatus for monitoring respiration and heartbeat and for processing electrical signals representative thereof, including circuits for developing a phase-shifted and amplitude-offset respiration signal for comparison with an original respiration signal for compensating for signal drift, and circuits for logically combining signals representative of the presence of respiration and heartbeat for eliminating certain false indications which may occur when only heartbeat exists.

REFERENCES:
patent: 3572317 (1971-03-01), Wade
patent: 3976052 (1976-08-01), Junginger et al.
patent: 4192318 (1980-03-01), Dam et al.
patent: 4250889 (1981-02-01), Levin
patent: 4387722 (1983-06-01), Kearns
patent: 4422458 (1983-12-01), Kravath
patent: 4446868 (1984-05-01), Aranson

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