Shunt barrier in pulse oximeter sensor
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United States of America Patent
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Aug 25, 1998
Grant Date -
N/A
app pub date -
Mar 5, 1996
filing date -
Mar 5, 1996
priority date (Note) -
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Abstract
A pulse oximeter sensor having an emitter(s) and a detector, with a layer having a first portion over the emitter and a second portion of layer over the detector is provided. A barrier is included between the first and second portions of the overlying layer to substantially block radiation of the wavelengths emitted by the emitter(s). Preferably, the barrier reduces the radiation shunted to less than 10% of the radiation detected, and more preferably to less than 1% of the radiation detected.
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