| US 7,455,644 B2 | ||
| Carbon dioxide sensor and airway adapter incorporated in the same | ||
| Shinji Yamamori, Tokyo (Japan); Yoshinobu Ono, Tokyo (Japan); Fumihiko Takatori, Tokyo (Japan); Hidetoshi Dainobu, Tokyo (Japan); Masayuki Inoue, Tokyo (Japan); and Noriaki Todokoro, Tokyo (Japan) | ||
| Assigned to Nihon Kohden Corporation, Tokyo (Japan) | ||
| Filed on Feb. 18, 2004, as Appl. No. 10/779,852. | ||
| Claims priority of application No. P2003-039775 (JP), filed on Feb. 18, 2003; application No. P2003-055349 (JP), filed on Mar. 03, 2003; and application No. P2003-147890 (JP), filed on May 26, 2003. | ||
| Prior Publication US 2004/0206907 A1, Oct. 21, 2004 | ||
| Int. Cl. A61B 5/08 (2006.01) | ||
| U.S. Cl. 600—532 [600/529; 128/201.27; 128/207.18] | 10 Claims |
| 1. An airway adapter adapted to be attached to a light emitter of a sensor for detecting a carbon dioxide gas in an expiration
gas of a living body, the airway adapter comprising:
an airway case, adapted to be disposed below nostrils of the living body, and formed with an airway passage configured to
extend across an optical axis of a light beam emitted from the light emitter of the sensor at a position between the nostrils
and a mouth of the living body; and
a mouth guide, adapted to be disposed in front of the mouth of the living body so as to define a space communicated with the
airway passage, the mouth guide being supported on the airway case so as to be pivotable about an axis that extends substantially
parallel to the optical axis.
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