Patent ID: 8244326

Claim:
A probe device for optically measuring a condition of an organism, comprising: a light emitter for emitting a light to proceed into the organism through a surface of the organism, and a light sensor for measuring an intensity of the light proceeding from the surface through the organism and emitted from the surface to reach the light sensor, wherein the probe device further comprises a plurality of light emitting probe bodies having respective front ends on each of which the light emitter is arranged, a plurality of light sensor probe bodies having respective front ends each of which the light sensor is arranged, a probe supporting body holding thereon the light emitting probe bodies and the light sensor probe bodies, and body supporting members for supporting the light emitting probe bodies and the light sensor probe bodies on respective positions on the probe supporting body, wherein each of the light sensor probe bodies has a main protrusion protruding to face to the surface so that the main protrusion is supported by the surface, and at least two sub-protrusions protruding to face to the surface and arranged around the main protrusion, the main protrusion includes a light transmitting member optically connected to the light sensor and arranged on a longitudinal axis of the main protrusion, and the body supporting members support the light sensor probe bodies on the probe supporting body in such a manner that the sub-protrusions is adapted to orbit around the main protrusion.