Living body information measuring apparatus

• US 8,600,466 B2
• Filed: 02/08/2008
• Issued: 12/03/2013
• Est. Priority Date: 07/22/2003
• Status: Active Grant

• Current Assignee: Toshiba Medical Systems Corporation (Canon Inc.)
• Original Assignee: Toshiba Medical Systems Corporation (Canon Inc.), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Kanayama, Shoichi
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US12/028,410
• Publication Number:
  US 20080139905A1
• Time in Patent Office: 2,125 Days
• Field of Search: 600/310, 600/316, 600/322, 600/323, 600/335, 600/340
• US Class Current: 600/310
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters

Abstract

A living body information measuring apparatus includes an optical system for irradiating light to a subject and detecting light from the subject, a signal processing portion for acquiring information with regard to a tissue condition of the subject based on a detecting signal of light, and a position determining portion for determining an acceptability of an irradiating position of light based on the detecting signal of light.

Claims

1. A living body information measuring apparatus, comprising:

light irradiating means for irradiating light to a subject;

means for detecting light diffused, transmitted, or reflected in the subject;

means for acquiring information with regard to a tissue condition of the subject based on a detected signal of the light; and

means for determining an acceptability of an irradiating intensity of the light based on the detected signal of the light,

wherein the means for determining determines that the irradiating intensity is acceptable when a width of variation of the detected signal of the light is lower than a threshold.

2. The living body information measuring apparatus according to claim 1, further including control means for controlling the light irradiating means for changing an irradiating intensity of the light when the irradiating intensity of the light is determined to be improper.