METHODS AND SYSTEMS FOR QUANTITATIVE COLORIMETRIC CAPNOMETRY

摘要

Quantitative colorimetric carbon dioxide detection and measurement systems are disclosed. The systems can include a gas conduit, a colorimetric indicator adapted to exhibit a color change in response to exposure to carbon dioxide gas, a temperature controller operatively coupled to the colorimetric indicator and configured to control the temperature of the colorimetric indicator, an electro-optical sensor assembly including a light source or sources adapted to transmit light to the colorimetric indicator, and a photodiode or photodiodes configured to detect light reflected from the colorimetric indicator and to generate a measurement signal, and a processor in communication with the electro-optical sensor assembly. The processor can be configured to receive the measurement signal generated by the electro-optical sensor assembly and to compute a concentration of carbon dioxide based on the measurement signal. Methods for using the systems are also disclosed including providing a breathing therapy to a patient or user.

主权项

1. A quantitative colorimetric carbon dioxide detection and measurement system comprising:
a gas conduit; a colorimetric indicator adapted to exhibit a color change in response to exposure to carbon dioxide gas; a temperature sensor configured to measure a temperature of the colorimetric indicator; an electro-optical sensor assembly comprising a light source or sources adapted to transmit light to the colorimetric indicator, and a light detection element configured to detect light reflected from the colorimetric indicator and to generate a measurement signal; and a processor in communication with the electro-optical sensor assembly, the processor configured to receive the measurement signal generated by the electro-optical sensor assembly and the temperature of the colorimetric indicator.