Optical probe for optical imaging system

A - Human Necessities – 61 – B

Patent

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A61B 5/1455 (2006.01)

Patent

CA 2621171

Methods and apparatus for monitoring oxygen saturation levels in tissue are disclosed. According to one aspect of the present invention, a sensor arrangement for use in an optical imaging system includes a first source structure, a second source structure, and a detector arrangement. The first source structure provides a first beam of light and the second source structure provides a second beam of light. The detector arrangement includes detector structures that have centerpoints, and receives the first and second beams of light after the first and second beams of light are reflected off of an external surface. The detector arrangement is arranged to define a first axis that passes through the centerpoint of each detector structure, and a distance from a centerpoint of the first source structure to the first axis is not equal to a distance from a centerpoint of the second source structure to the first axis.

Procédés et appareil de surveillance des niveaux de saturation d~oxygène dans les tissus. Selon un aspect de la présente invention, une configuration de capteurs pour une utilisation dans un système d'imagerie optique comporte une première structure source, une seconde structure source, et une configuration de détection. La première structure source fournit un premier faisceau de lumière et la seconde structure source fournit un second faisceau de lumière. La configuration de détection comporte des structures de détection ayant des points centraux, et reçoit le premier faisceau de lumière et le second faisceau de lumière une fois que le premier faisceau de lumière et le second faisceau de lumière ont été réfléchis par une surface externe. La configuration de détection est disposée pour définir un premier axe passant par le point central de chaque structure de détection, et une distance d'un point central de la première structure source au premier axe n~est pas égale à une distance d'un point central de la seconde structure source au premier axe.

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