Medical sensor and technique for using the same
First Claim
Patent Images
1. A sensor comprising:
- a sensor body;
an emitter disposed on the sensor body, wherein the emitter is adapted to transmit light into tissue;
a detector disposed on the sensor body, wherein the detector is adapted to detect the light; and
a patterned region disposed on a tissue-contacting surface of the sensor body between the emitter and the detector, the patterned region being configured to at least absorb, refract, redirect, or diffract the light.
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Abstract
A medical sensor may be adapted to account for factors that cause irregularities in pulse oximetry measurements or other spectrophotemetric measurements. Sensors are provided with surface 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 the effect of outside light or shunted light on pulse oximetry measurements.
140 Citations
31 Claims
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1. A sensor comprising:
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a sensor body;
an emitter disposed on the sensor body, wherein the emitter is adapted to transmit light into tissue;
a detector disposed on the sensor body, wherein the detector is adapted to detect the light; and
a patterned region disposed on a tissue-contacting surface of the sensor body between the emitter and the detector, the patterned region being configured to at least absorb, refract, redirect, or diffract the light. - View Dependent Claims (2, 3, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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4. 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;
an emitter disposed on the sensor body, wherein the emitter is adapted to transmit light into tissue;
a detector disposed on the sensor body, wherein the detector is adapted to detect the light; and
a patterned region disposed on a tissue-contacting surface of the sensor body between the emitter and the detector, the patterned region being configured to at least absorb, refract, redirect, or diffract the light. - View Dependent Claims (5)
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6. A method comprising:
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delivering a first light through a patient'"'"'s tissue;
detecting the first light delivered through the tissue; and
redirecting a second light that does not propagate through the tissue away from the detector with a patterned region. - View Dependent Claims (7)
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8. A method of manufacturing a sensor, the method comprising:
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providing a sensor body;
providing an emitter adapted to transmit light into tissue;
providing a detector adapted to detect the light; and
providing a patterned region on a tissue-contacting surface of the sensor body between the emitter and the detector, the patterned region being configured to at least absorb, refract, redirect, or diffract the light. - View Dependent Claims (9)
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10-19. -19. (canceled)
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20. A sensor comprising:
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a sensor body;
an emitter disposed on the sensor body, wherein the emitter is adapted to transmit a light into tissue;
a detector disposed on the sensor body, wherein the detector is adapted to detect the light; and
a light diffracting material disposed on a tissue-contacting surface of the sensor body. - View Dependent Claims (21)
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Specification