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Machine translation
1. (WO1979000465) OXIMETER FOR FUNDUSOCULI
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000465    International Application No.:    PCT/JP1978/000069
Publication Date: 26.07.1979 International Filing Date: 27.12.1978
IPC:
A61B 3/13 (2006.01), A61B 5/00 (2006.01)
Applicants:
Inventors:
Priority Data:
77/159864 30.12.1977 JP
Title (EN) OXIMETER FOR FUNDUSOCULI
(FR) APPAREIL D"OXYMETRIE POUR EXAMEN DE FOND L"OEIL
Abstract: front page image
(EN)An oximeter for fundus oculi used for spectroscopically measuring the oxygen saturation degree of the blood in the fundus oculi of a human eye. This oximeter has an optical lighting system (8, 21, 10) adapted to preliminarily irradiate the fundus oculi of the eye (11) under examination with light over an extensively wide range of wave lengths, and then irradiate the fundus oculi with four kinds of light which have spectral distributions that differ from one another. The oximeter includes an photoelectric element (13) which directly receives the four kinds of light not having passed through the eye under examination, and a photo-electric element (16) adapted to receive the light reflected by the fundus oculi after the four kinds of light have impinged thereon. The outputs from the elements (13, 16) are compared to each other for each identical spectral distribution, and the compared results are subjected to predetermined arithmetic operations to determine the oxygen saturation degree. The preliminary irradiation of the fundus oculi with the light over the extensively wide range of wave lengths causes the optic substances in the optic cells of the fundus oculi to fade, and is therefore useful in obtaining information from the blood in the fundus oculi.
(FR)Appareil d"oxymetrie pour examen du fond de l"oeil permettant de mesurer par voie spectroscopique le degre de saturation en oxygene du sang dans le fond d"un oeil humain. Cet appareil d"oxymetrie comprend un systeme d"eclairage optique (8, 21, 10), concu pour illuminer dans une etape preliminaire le fond de l"oeil (11) en cours d"examen a l"aide de lumiere a large spectre de longueurs d"onde, puis pour irradier le fond de l"oeil a l"aide de quatre rayonnements lumineux presentant des distributions spectrales differentes. L"appareil d"oxymetrie comprend un element photo-electrique (13), qui recoit directement les quatre rayonnements lumineux, sans que ceux-ci aient traverse l"oeil en cours d"examen, ainsi qu"un element photo-electrique (16) concu pour recevoir la lumiere reflechie par le fond de l"oeil et provenant des quatre rayonnements lumineux frappant le fond de l"oeil. Les reponses des elements (13, 16) sont comparees pour chaque distribution spectrale, et les reponses comparees font l"objet d"operations arithmetiques predeterminees afin de determiner le degre de saturation en oxygene. L"illumination preliminaire du fond de l"oeil a l"aide de la lumiere a large spectre de longueurs d"onde provoque la decoloration des substances optiques des cellules optiques du fond de l"oeil et s"avere donc utile pour obtenir l"information a partir du sang dans le fond de l"oeil.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)