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. 09, 2008
Filed:
Mar. 08, 2002
Shinji Yamamori, Tokyo, JP;
Yoshinobu Ono, Tokyo, JP;
Takeshi Kojima, Tokyo, JP;
Noriaki Todokoro, Tokyo, JP;
Shinji Yamamori, Tokyo, JP;
Yoshinobu Ono, Tokyo, JP;
Takeshi Kojima, Tokyo, JP;
Noriaki Todokoro, Tokyo, JP;
Nihon Kohden Corporation, Tokyo, JP;
Abstract
A sensor main unitis axially split into three sub-segments. A light-emitting elementis attached to one end portion, and a light-receiving elementis attached to the other end portion. A respiratory flow pathis formed so as to penetrate through the center portion. The sensor main unitis attached to a position on the face below the nostrils, and respiratory gas from the nostrils is guided into the respiratory flow pathand is caused to cross over the optical axis connected the light-emitting elementand the light-receiving element, thereby measuring a carbon dioxide gas in the respiratory gas.