×

CO2 sensor and CO2 measuring apparatus

  • US 9,615,774 B2
  • Filed: 06/19/2012
  • Issued: 04/11/2017
  • Est. Priority Date: 06/24/2011
  • Status: Active Grant
First Claim
Patent Images

1. A CO2 sensor comprising:

  • a sensing portion operable to change in color in accordance with a CO2 partial pressure in expiration from at least one of nares and a mouth of a living body; and

    a mounting member that is capable of being supported on the living body with an adhesive portion, and adapted to detachably hold the sensing portion in a vicinity of the nares so that the expiration from the at least one of nares and a mouth impinges on the sensing portion, the adhesive portion being formed by a tape or a sheet,wherein, in the sensing portion, a chemical solution which is operable to change in color in accordance with the CO2 partial pressure is held on fabric or paper or held on the mounting member,wherein the tape or the sheet has a first surface adapted to be stuck to the living body through an adhesive agent applied to the first surface and a second surface which is opposite to the first surface,wherein the sensing portion is held on the second surface and exposed at a side of the second surface, andwherein the mounting member includes;

    the adhesive portion adapted to extend in a longitudinal direction of a lip of the mouth of the living body with a band-like shape adapted about the philtrum above the lip;

    anda mouth cover which is integrally formed with the adhesive portion, the mouth cover including a first side adapted to face the lip and a second side adapted to face away from the lip, the mouth cover adapted to extend toward a downward direction of the lip, and includes a groove providing an airflow path adapted to extend in an up-down direction adjacent the first side of the mouth cover and an opening which faces the sensing portion at an upper end portion of the groove,a projecting piece projecting forward from a connecting portion that connects the adhesive portion and the mouth cover, located above the opening, and including a hole, andan additional sensing portion similar to the sensing portion is disposed on the projecting piece so as to close the hole.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×