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:
Dec. 01, 2015
Filed:
Jul. 06, 2011
Tsukasa Funane, Fujimi, JP;
Hirokazu Atsumori, Kawagoe, JP;
Takusige Katura, Fujimi, JP;
Masashi Kiguchi, Kawagoe, JP;
Tsuyoshi Takatera, Kashiwa, JP;
Michiyuki Fujiwara, Kashiwa, JP;
Tsukasa Funane, Fujimi, JP;
Hirokazu Atsumori, Kawagoe, JP;
Takusige Katura, Fujimi, JP;
Masashi Kiguchi, Kawagoe, JP;
Tsuyoshi Takatera, Kashiwa, JP;
Michiyuki Fujiwara, Kashiwa, JP;
HITACHI MEDICAL CORPORATION, Tokyo, JP;
Abstract
The present invention is capable of separating/removing the influence of skin blood flow contained in near infrared spectroscopy (NIRS) signals and extracting a brain- or brain cortex-origin signal. Moreover, the present invention enables versatile separation of brain-origin and skin-origin signals in view of differences among individuals. A biological photometric device, wherein light transmitters and light receivers are located in such a manner that measurement can be conducted at a plurality of source-detector (SD) distances and light received by the individual light-receivers can pass through the gray matter to thereby separate a brain-origin signal and a skin-origin signal. Individual component analysis (ICA) is conducted on data obtained at the individual measurement points. Then, it is determined whether each individual component originates in the brain or in the skin with the use of the SD distance-dependency of the weighted value of each of the separated components.