Invention Grant
- Patent Title: Sensor for measuring carbon dioxide in respiratory gas
- Patent Title (中): 用于测量呼吸气体二氧化碳的传感器
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Application No.: US10092591Application Date: 2002-03-08
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Publication No.: US07462154B2Publication Date: 2008-12-09
- Inventor: Shinji Yamamori , Yoshinobu Ono , Takeshi Kojima , Noriaki Todokoro
- Applicant: Shinji Yamamori , Yoshinobu Ono , Takeshi Kojima , Noriaki Todokoro
- Applicant Address: JP Tokyo
- Assignee: Nihon Kohden Corporation
- Current Assignee: Nihon Kohden Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPP2001-064901 20010308; JPP2001-107179 20010405; JPP2002-046480 20020222
- Main IPC: G01N21/00
- IPC: G01N21/00 ; G01N7/00 ; G01N27/00 ; G01N31/00 ; G01N33/00 ; G01N1/22 ; G01N37/00 ; G01N35/00 ; A61L9/00 ; B01J7/00 ; A61M16/00 ; A62B7/00 ; A62B18/02 ; F16K31/02
Abstract:
A sensor main unit 1 is axially split into three sub-segments. A light-emitting element 2 is attached to one end portion, and a light-receiving element 3 is attached to the other end portion. A respiratory flow path 4 is formed so as to penetrate through the center portion. The sensor main unit 1 is attached to a position on the face below the nostrils, and respiratory gas from the nostrils is guided into the respiratory flow path 4 and is caused to cross over the optical axis connected the light-emitting element 2 and the light-receiving element 3, thereby measuring a carbon dioxide gas in the respiratory gas.
Public/Granted literature
- US20020122746A1 Sensor for measuring carbon dioxide in respiratory gas Public/Granted day:2002-09-05
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