Objective determination of the rate of oxygen utilization in per

Details Objective determination of the rate of oxygen utilization in per Objective determination of the rate of oxygen utilization in per

1977-10-18

1980-09-16

Howell, Kyle L.

Surgery

Truss

Pad

128666, 356 41, A61B 600

Patent

active

042223890

ABSTRACT:
A non-invasive method of objectively determining, in vivo, the rate of oxygen utilization in peripheral tissue by spectral measuring means, which involves isolating a segment of blood in the tissue with a clamp or tourniquet, and obtaining rapid, successive spectral curves of the oxyhemoglobin in the occluded area, to and from selected wavelengths of light, and measuring the time-space relationship between a rapidly moving portion of the spectral curve and a slower moving adjacent portion of the same curve, from the moment of occlusion, to establish a rate of reduction of the oxyhemoglobin in the tissue which is directly correlated to the rate of oxygen utilization.

REFERENCES:
patent: 2824972 (1958-02-01), Beitz
patent: 3152587 (1964-10-01), Ullrich et al.
patent: 3486822 (1969-12-01), Harris
patent: 3810460 (1974-05-01), Van Nie
patent: 4000972 (1977-01-01), Braun et al.
Janssen, F. J., Medicamundi, vol. 17, No. 1 (1972), pp. 7-15.
Laing, R. A., et al., I.E.E.E. Trans. on Biomed. Engng., vol:BME-22, No. 3, May 1975.

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