Medical sensor and technique for using the same
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United States of America Patent
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Mar 1, 2011
Grant Date -
Mar 29, 2007
app pub date -
Sep 29, 2005
filing date -
Sep 29, 2005
priority date (Note) -
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Abstract
A sensor may be adapted to account for factors that cause irregularities in sensor measurements. A sensor may selectively absorb light from outside sources. A sensor may selectively absorb light near a region of tissue having relatively large subcutaneous anatomic structures, such as large blood vessels, and selectively reflect light near a region of tissue that is relatively free of large blood vessels or other structures. The sensor is adapted to reduce the effect of large subcutaneous anatomic structures and outside light on measurements for pulse oximetry or other spectrophotometric techniques.
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