×

DEVICE FOR DETERMINING THE CONCENTRATION OF AT LEAST ONE GAS COMPONENT IN A BREATHING GAS MIXTURE

  • US 20180120224A1
  • Filed: 10/27/2017
  • Published: 05/03/2018
  • Est. Priority Date: 10/28/2016
  • Status: Active Grant
First Claim
Patent Images

1. A device for determining a concentration of a gas component in an inhaled gas or in an exhaled gas of a living being, the device comprising:

  • a radiation source configured to emit light or heat radiation in a radiation direction in a wavelength range of lambda1 (λ

    1)=2.5 μ

    m to lambda2 (λ

    2)=14.0 μ

    m;

    a detector array with at least two detector elements configured to detect the radiation generated by the radiation source;

    at least two bandpass filter elements each of the filter elements being arranged at one of the at least two detector elements; and

    a control unit configured to control operation of the radiation source and to detect the signal of the at least two detector elements, wherein;

    at least one of the at least two bandpass filter elements is configured to be optically transparent for infrared radiation which is absorbed by a measured gas;

    at least one of the at least two bandpass filter elements is configured to be optically transparent for a radiation that is not absorbed by the measured gas; and

    at least one of the two detector elements with at least one of the bandpass filter elements is arranged in an angular arrangement at an angle in a range of 20°

    to 80°

    in relation to an axis extending through the radiation source parallel to or identical to the radiation direction of the emission of the radiation source.

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