Shunt barrier in pulse oximeter sensor
First Claim
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1. A sensor comprising:
- a substrate layer;
a light emitter coupled to the substrate layer;
a light detector coupled to the substrate layer; and
a partially opaque layer configured to attenuate light shunted from the light emitter to the light detector, wherein the partially opaque layer is disposed in a location such that light emitted from the light emitter passes through the partially opaque layer.
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Abstract
A pulse oximeter sensor comprising an emitter and a detector coupled to a substrate layer and a partially opaque layer located on a patient contact side of the sensor and covering the emitter. The partially opaque layer is configured to attenuate light shunted via the partially opaque layer from the emitter to the detector, and may be configured such that less than 10% of the light detected by the detector is shunted light.
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Citations
36 Claims
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1. A sensor comprising:
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a substrate layer;
a light emitter coupled to the substrate layer;
a light detector coupled to the substrate layer; and
a partially opaque layer configured to attenuate light shunted from the light emitter to the light detector, wherein the partially opaque layer is disposed in a location such that light emitted from the light emitter passes through the partially opaque layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sensor substrate comprising:
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a first layer, wherein one end of the first layer comprises a location for a light emitter and another end of the first layer comprises for a location for a light detector; and
a partially opaque layer coupled to the first layer, wherein the partially opaque layer is configured attenuate light shunted from the location for the light emitter to the location for the light detector. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method of manufacturing a sensor comprising:
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providing a substrate layer;
providing a light emitter coupled to the substrate layer and a light detector coupled to the substrate layer; and
providing a partially opaque layer configured to attenuate light shunted from the light emitter to the light detector, wherein the partially opaque layer is disposed in a location such that light emitted from the light emitter passes through the partially opaque layer. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A method of remanufacturing a sensor comprising:
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providing a sensor comprising a substrate, a light emitter coupled to the substrate, and a light detector coupled to the substrate; and
coupling a partially opaque layer to the sensor so that light from the light emitter passes through the partially opaque layer, wherein the partially opaque layer is configured to attenuate light shunted from the light emitter to the light detector. - View Dependent Claims (29, 30, 31)
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32. A method of operating a sensor comprising:
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emitting light at a patient through a partially opaque layer with a light emitter; and
detecting light from the patient with a light detector, wherein the partially opaque layer attenuates light shunted from the light emitter to the light detector. - View Dependent Claims (33, 34, 35, 36)
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Specification