Shunt barrier in pulse oximeter sensor

Details Shunt barrier in pulse oximeter sensor Shunt barrier in pulse oximeter sensor

2008-05-13

2008-05-13

Winakur, Eric (Department: 3768)

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

C600S323000, C600S344000

Reexamination Certificate

active

07373189

ABSTRACT:
A pulse oximeter sensor comprising an emitter and a detector disposed on a substrate layer with a thinned portion between the emitter and the detector. A partially transparent covering layer covers the substrate layer and comprises a corresponding thinned portion. The thinned portions attenuate light shunted via the substrate layer and the partially transparent covering layer from the emitter to the detector, and may be configured such that less than 10% of the light detectable by the detector is shunted light.

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