The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2006
Filed:
Nov. 29, 2000
Tsuyoshi Yamamoto, Kawagoe, JP;
Atsushi Maki, London, GB;
Hideaki Koizumi, Tokyo, JP;
Fumio Kawaguchi, Hinode, JP;
Michiyuki Fujiwara, Kashiwa, JP;
Mikihiro Kaga, Abiko, JP;
Tsuyoshi Yamamoto, Kawagoe, JP;
Atsushi Maki, London, GB;
Hideaki Koizumi, Tokyo, JP;
Fumio Kawaguchi, Hinode, JP;
Michiyuki Fujiwara, Kashiwa, JP;
Mikihiro Kaga, Abiko, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Medical Corporation, Tokyo, JP;
Abstract
The invention provides a biological photometric device characterized by a method of disposing a light source and a light detector, capable of measuring a distribution of concentrations at different depths and changes in the concentration in the case of measuring and forming an image of the concentration of metabolites in an organ and changes in the concentration. The light sources and light detectors are disposed on the subject so that, in the case of measuring a concentration of metabolites in an organ and changes in the concentration in a shallow portion in the subject by using an about midpoint position between each of the light sources and each of the light detectors as a sampling point, measurement is performed by using a sampling point of a pair of the light source and said light detector which are disposed at a small interval. In the case of measurement in a deep portion in the subject, a sampling point of a pair of the light source and the light detector which are disposed at a large interval is used.