Patent ID: 7150717
Filing Date: 2006-12-19
Classification: A61B

Abstract:
1. An optical measurement apparatus for use in examination of a living body test subject comprising: at least one light irradiating section configured to beam light onto the body of the living body test subject; at least one light detecting section configured to detect light configured to transmit through the body or reflected from the interior of the body; a carbon dioxide gas concentration control device configured to create a first state in the body simulating a task period and a second state in the body corresponding to a rest period by controlling the carbon dioxide gas concentration applied within the air breathed by the test subject via the carbon dioxide gas concentration control device; and a computer configured to control the light irradiating section and the light detecting section, and set a light detection sensitivity level, and analyze light signals detected by the light detecting section, wherein said computer further comprises a display section configured to display variations in said carbon dioxide gas concentration over time, and variations in said detected light signal intensity over time.