Method and apparatus for determination of pH pCO2, hemoglobin, and hemoglobin oxygen saturation
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United States of America Patent
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Feb 17, 2004
Grant Date -
N/A
app pub date -
Feb 9, 1999
filing date -
Feb 10, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a method and apparatus for in-vivo, real time measurement of pH, pCO.sub.2, base excess, hemoglobin, and hemoglobin oxygen saturation. Specifically, the invention relates to an apparatus placed in-line with an existing invasive patient access line to provide continuous, semi-continuous, or non-continuous monitoring of blood pH, pCO.sub.2, base excess, hemoglobin, and hemoglobin oxygen saturation in a manner which is relatively non-invasive. Further, the device and apparatus allows monitoring of the listed parameters in a non-destructive manner such that the blood sample under analysis can be returned to the patient.
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