Optical device for the simultaneous detection of heart and respi

Details Optical device for the simultaneous detection of heart and respi Optical device for the simultaneous detection of heart and respi

1987-10-14

1990-08-07

Smith, Ruth S.

Surgery

Truss

Pad

128714, 128721, 128774, 128782, A61B 50205

Patent

active

049459163

ABSTRACT:
The device comprises a sensor with a mirror coupled to a diaphragm used to shift the mirror according to the patient's heart and thorax movements. A light generator illuminates the mirror. An electro-optical detector converts the intensity of the light rays reflected by the mirror into an electrical signal and a processing circuit generates output signals indicative of heart and respiratory movements.

REFERENCES:
patent: 3517999 (1970-06-01), Weaver
patent: 4664129 (1987-05-01), Helzel et al.
patent: 4694837 (1987-09-01), Blakeley et al.
patent: 4803992 (1989-02-01), Lemelson
Willis, "Respiration Transducer", IBM Technical Disclosure Bulletin, vol. 6, No. 6, Nov. 1963, p. 13.

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