Title:
DEVICE FOR INSPIRING OXYTEN AND MEASURING RESPIRATION
Document Type and Number:
Japanese Patent JPS54135489
Kind Code:
A
Abstract:
A system for measuring the oxygen uptake and respiratory quotient of a patient which employs a high resistance gas flow path in parallel with a pneumotachograph. The high resistance path is connected to each side of the pneumotachograph and a small chamber is included in the high resistance path at each end thereof adjacent its connection to the pneumotachograph. The volume of the high resistance path, together with its resistance relative to that of the pneumotachograph is chosen such that, during respiration of the patient employing the device, the high resistance path will never be completely flushed through in one direction before flow starts in the opposite direction. The high reistance path is chosen to be a constant resistance such that the amount of flow therethrough is proportional to the flow through the pneumotachograph. Thus by sampling and analyzing a small portion of the gas of the two chambers and measuring the amount of gas flow by the pneumotachograph, the exact amount of oxygen uptake can be calculated.
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Inventors:
JIYON JIEI OZUBOON
Application Number:
JP4243479A
Publication Date:
October 20, 1979
Filing Date:
April 06, 1979
Export Citation:
Assignee:
RESEARCH DEV CORP
International Classes:
A61B5/08; A61B5/083; A61B5/087; G01F1/36; G01F1/40; G01N1/02; G01N33/497; (IPC1-7): A61B5/08; G01N1/22