Patent Document ID: 9138146
Application ID: 13501815
Patent Status: 1

Claim One:
1. A biological optical measurement instrument comprising: a plurality of light transmission units; a light source unit configured to irradiate near-infrared light to an object to be examined; a light measurement unit configured to measure an intensity of transmitted light at a plurality of measurement points in the object; a probe holder configured to affix the plurality of light transmission units; a signal processing unit configured to process and image measurement data from the light measurement unit; a display unit configured to display a processing result from the signal processing unit; a mobile magnetic position sensor which is movable in a 3-dimensional space and configured to detect a spatial position in a 3-dimensional space; a head-surface image creating unit configured to create a head-surface image of the object; a head-surface point creating unit configured to create on the head-surface image a head-surface point corresponding to the spatial position detected by the mobile magnetic position sensor; a storage unit configured to store a brain-surface image of the object obtained using a 3-dimensional image diagnostic apparatus; a brain-surface image creating unit configured to read out the brain-surface image from the storage unit and create the brain-surface image; and a brain-surface point creating unit configured to: create on the brain-surface image a brain-surface point corresponding to the head-surface point specified by the mobile magnetic position sensor, calculate a straight line which passes through a reference point inside a head and the head-surface point from the spatial position of the reference point in a head region acquired from a head surface of the object and the spatial position of the head-surface point, and calculate a point at which the calculated straight line intersects with the brain-surface image as the brain-surface point.