Opaque, electrically nonconductive region on a medical sensor
First Claim
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1. A sensor comprising:
- a sensor body supporting respective electrical connectors connected to an emitter and a detector, wherein the emitter and the detector are disposed on a tissue-contacting surface of the sensor body; and
at least one opaque member disposed on the sensor body and spanning only a portion of the sensor body between the emitter and the detector, the opaque member comprising a substantially electrically nonconductive material, and wherein the opaque member does not surround the emitter and detector.
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Abstract
A medical sensor may be adapted to prevent unwanted light and electrical interference from corrupting physiological measurements. Sensors are provided with features that reduce the amount of outside light or shunted light that impinge the detecting elements of the sensor. The sensor is adapted to reduce crosstalk between electrical signals, increasing the accuracy of measurements. The sensor is also adapted to reduce the effect of outside light or shunted light on pulse oximetry measurements.
933 Citations
31 Claims
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1. A sensor comprising:
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a sensor body supporting respective electrical connectors connected to an emitter and a detector, wherein the emitter and the detector are disposed on a tissue-contacting surface of the sensor body; and at least one opaque member disposed on the sensor body and spanning only a portion of the sensor body between the emitter and the detector, the opaque member comprising a substantially electrically nonconductive material, and wherein the opaque member does not surround the emitter and detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pulse oximetry system comprising:
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a pulse oximetry monitor; and a pulse oximetry sensor adapted to be operatively coupled to the monitor, the sensor comprising; a sensor body; and at least one opaque member disposed on the sensor body and covering at least a portion of the sensor body supporting respective electrical leads coupled to an emitter and a detector, the opaque member comprising a substantially electrically nonconductive material, and wherein the opaque member does not surround the emitter and detector. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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emitting light into tissue with an emitter; detecting the emitted light with a detector; absorbing light that has not been transmitted from the emitter through the tissue with at least one opaque member disposed on a sensor body and covering at least a portion of the sensor body supporting respective electrical leads coupled to the emitter and the detector, wherein the at least one opaque member comprises a substantially electrically nonconductive material and wherein the opaque member does not surround the emitter and detector; and measuring a physiological characteristic based on the detected light. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method of manufacturing a sensor, comprising:
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providing a sensor body supporting respective electrical connectors coupled to an emitter and a detector, wherein the emitter and the detector are disposed on the sensor body; and providing at least one opaque member disposed on the sensor body and spanning only a portion of the sensor body in a region between the emitter and the detector, the opaque member comprising a substantially electrically nonconductive material, and wherein the opaque member does not surround the emitter and detector. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification