Oximeter with system for testing transmission path
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United States of America Patent
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-
Mar 13, 1990
Grant Date -
N/A
app pub date -
May 2, 1988
filing date -
May 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An examination apparatus measures the oxygenation in body organs by the near infrared light transmission spectrophotometry. To inspect the examination apparatus itself before the oxygenation measurement, an illumination-side fixture and a detection-side fixture have such structures that these fixtures can be assembled together in such a manner that near infrared light is directly made incident on the detection-side fixture from the illumination-side fixture. In the midst of the measurement, the examination apparatus is regularly inspected and a photomultiplier tube can be separately inspected by employing a separate light source for inspection.
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Cited Art Landscape
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