Expiration nitric oxide detection device

Abstract

The invention discloses an expiration NO detector, comprising three modules: a sampling module, a detection module and a control module; the sampling module complies with programs recommended by international expiration detection standard, automatically controls the aspiration quality, flux and pressure of tester entering the detector, carries out the humidity reduction and resistance/capacitance matching of the airflow, and realizes the best airflow condition of the detection. The detection module is provided with the sensitiveness and selective requirement meeting the expiration detection standard requirement, and a self-marking function on the zero point and sensitiveness calibration. The control module carries out all necessary automatic controls on the sampling and detection, carries out the information processing, memorizing and communicating, selects various function by a touch screen user interface, inputs the information of the tester, guides the detection process, records and displays the detection results.

Description

technical field [0001] The present invention relates to the field of breath detection, more specifically, to the determination of the concentration of breath nitric oxide as a marker of airway inflammation. Background technique [0002] The use of exhaled nitric oxide as a marker of airway inflammation in the detection and analysis of asthma and other respiratory diseases has been fully affirmed by the medical community. In 1997 and 1999, Europe and the United States formulated recommended standards for exhaled nitric oxide testing respectively, and jointly formulated and published the standard in 2005 (“ATS / ERS Recommendations for Standardized Procedures for the Online and Offline Measurement of Exhaled Low Respiratory NitricOxide and Nasal Nitric Oxide, 2005", ATS is the abbreviation of American Throat Society, ERG is the abbreviation of European Respiratory Society, hereinafter referred to as "Standard"). The "Standard" is used to guide how to conduct testing and use the...

AI Technical Summary

Problems solved by technology

Although calibration can be avoided by frequent replacement of sensors and

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