Shunt barrier in pulse oximeter sensor

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

1996-03-05

1998-08-25

Bahr, Jennifer

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

600322, 600344, 600310, 250221, A61B 500

Patent

active

057978417

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.

REFERENCES:
patent: 3769974 (1973-11-01), Smart et al.
patent: 5090410 (1992-02-01), Saper et al.
patent: 5099842 (1992-03-01), Mannheimer et al.
patent: 5285783 (1994-02-01), Secker
patent: 5402777 (1995-04-01), Warring et al.

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