GAS MEASURING APPARATUS AND METHOD FOR THE CONTINUOUS MEASURING OF THE CO2 CONTENT IN RESPIRATORY GASES

GAS MEASURING APPARATUS AND METHOD FOR THE CONTINUOUS MEASURING OF THE CO2 CONTENT IN RESPIRATORY GASES

This invention relates to a gas measuring apparatus and method based on infrared absorption and for measuring the CO2 content in respiratory gas. A method of continually measuring the content of CO2 in respiratory gas, wherein a detector is irradiated by an infrared source via a cyclical respiratory...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: FRANKENBERGER, HORST
Format: Patent
Sprache:eng ; fre
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
TESTING
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Beschreibung
Zusammenfassung:This invention relates to a gas measuring apparatus and method based on infrared absorption and for measuring the CO2 content in respiratory gas. A method of continually measuring the content of CO2 in respiratory gas, wherein a detector is irradiated by an infrared source via a cyclical respiratory gas flow. Measurement values are continually derived from said detector for both the inhalation and the exhalation phases under the control of respiratory phase detecting means, and these values are divided one by another in calculating means to give a resultant indicating approximately the CO2 content.