Optical analyzer for measuring a construction ratio between comp

Details Optical analyzer for measuring a construction ratio between comp Optical analyzer for measuring a construction ratio between comp

1980-12-15

1984-05-08

Howell, Kyle L.

Surgery

Truss

Pad

128664, 128666, 356 41, A61B 500

Patent

active

044468717

ABSTRACT:
An optical analyzer such as oximeter is provided including a source of light having a plurality of different wavelengths. At least two or more of the different wavelengths have a fixed relationship of light absorption after coaction with hemoglobin oxide. The light is directed at the subject tissue and received after coaction by an optical probe. A first signal representative of the degree of light absorption at a predetermined standard wavelength is determined and then an attempt is made to match a second wavelength having a fixed relationship of light absorption to the predetermined standard wavelength, e.g., equal absorption, to generate a second signal representative of the second wavelength, whereby the amount of hemoglobin oxide can be determined in the bloodstream.

REFERENCES:
patent: 3922088 (1975-11-01), Lubbers et al.
patent: 4305398 (1981-12-01), Sawa
Merrick et al., Hewlett-Packard Journ., vol. 28, No. 2, pp. 2-9, Oct. 1976.

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