NEAR INFRARED OXYGEN CONCENTRATION SENSOR FOR PALPATION
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United States of America Patent
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Issued Date -
Mar 31, 2016
app pub date -
May 13, 2014
filing date -
May 24, 2013
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Abstract
A near-infrared oxygen concentration sensor for palpation 1 to be attached to a finger pad on a leading end side from a distal interphalangeal joint of a use's finger includes: a base material 2 to be attached to a finger pad; a light emitting unit 4 that is disposed on the base material and that emits light having at least two wavelengths, including near-infrared light, to a test subject; light receiving units 5a and 5b that are disposed on the base material and that receives a measurement light from the light emitting element through the test subject; and a light receiving unit 3 that is disposed at least between the light emitting unit or the light receiving unit and the finger pad and that prevents the measurement light having passed through the user's finger from being led to the light receiving unit.
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