Patent ID: 8909313

Claim:
A device for diagnosis and/or therapy of a selected portion of a body by optical reflectance or optical transmission having a laminar body including a tissue-facing surface, an exterior surface averted from said tissue-facing surface, a transmitter opening destined to accommodate a transmitter fibre terminal containing an optical transmitter fibre, and a receiver opening destined to accommodate a receiver fibre terminal containing an optical receiver fibre; said transmitter fibre terminal being designed for directing light incoming through said optical transmitter fibre towards a direction at least approximately perpendicular to the tissue-facing surface; said receiver fibre terminal being designed for collecting incoming light from a direction at least approximately perpendicular to said tissue-facing surface in said optical receiver fibre; annular transmitter light shielding element for shielding said transmitter fibre terminal from ambient light sources; annular receiver light shielding element for shielding said receiver fibre terminal from ambient light sources; wherein said transmitter opening is a transmitter cavity having a transmitter housing portion and a transmitter passage portion, said transmitter passage portion discharging into said transmitter housing portion and allowing passing there through said optical transmitter fibre; said transmitter cavity being integrally formed with said laminar body; said receiver opening is a receiver cavity having a receiver housing portion and a receiver passage portion, said receiver passage portion discharging into said receiver housing portion and allowing passing there through said optical receiver fibre; said receiver cavity being integrally formed with said laminar body; said annular transmitter light shielding element is formed as an annular transmitter light shielding bulge and said annular receiver light shielding element is formed as an annular receiver light shielding bulge; and said annular transmitter light shielding bulge and said annular receiver light shielding bulge are firmly arranged with respect to said laminar body, and their free ends are protruding with respect to said tissue-facing surface of said laminar body.