Surgery – Truss – Pad
Patent
1979-08-22
1981-12-15
Howell, Kyle L.
Surgery
Truss
Pad
128666, 128745, 356 41, A61B 500
Patent
active
043053980
ABSTRACT:
An eye fundus oximeter adapted to measure spectrally the oxygen saturation of the blood in the fundus of the human eye. The oximeter includes an illuminating optical system (8, 21, 10) for first illuminating the fundus of the patient's eye (11) with light of a wide wavelength range and then illuminating the same with light of four different spectra, a photoelectric element (13) for receiving the four kinds of light directly and not via the patient's eye and a photoelectric element (16) for receiving the four kinds of light impringing on the fundus of the eye and then reflected therefrom. The outputs of these photoelectric elements (13, 16) are compared at each of the same spectra, the results of such comparison being subject to given arithmetic operations to evaluate the oxygen saturation. The purpose of the pre-illumination of the eye fundus with light of a wide wavelength range is to discolor visual pigments in the photoreceptor cell layer in the fundus and aid in deriving information about the blood in the fundus.
REFERENCES:
patent: 3638640 (1972-02-01), Shaw
patent: 3647299 (1972-03-01), Lavallee
patent: 3799672 (1974-03-01), Vurek
patent: 3802776 (1974-04-01), Tchang
patent: 3804535 (1974-04-01), Rodriguez
patent: 4086915 (1978-05-01), Kofsky et al.
patent: 4167331 (1979-09-01), Nielsen
Cohen, A. J. et al., I.E.E.E. Trans. on Biomed. Engng., vol.-BME 23, No. 5, pp. 391-400, Sep. 1976.
Laing, R. A. et al., I.E.E.E. Trans. on Biomed. Engng., vol.-BME 22, No. 3, pp. 183-195, May 1975.
Broad Foot, K. D. et al., Brit. J. Ophthal. (1961) 45, 161-182.
Howell Kyle L.
Minolta Camera Kabushiki Kaisha
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