Medical sensor and technique for using the same
First Claim
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1. A sensor comprising:
- a conformable sensor body;
an emitter disposed on a tissue-contacting surface of the sensor body;
a detector disposed on the tissue-contacting surface of the sensor body; and
a patterned region disposed on the tissue-contacting surface of the sensor body, wherein the patterned region is configured to reduce an incidence of shunted or ambient light reaching the detector and wherein the patterned region protrudes less than about 0.001 mm from the tissue-contacting surface of the sensor body.
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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.
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21 Claims
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1. A sensor comprising:
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a conformable sensor body; an emitter disposed on a tissue-contacting surface of the sensor body; a detector disposed on the tissue-contacting surface of the sensor body; and a patterned region disposed on the tissue-contacting surface of the sensor body, wherein the patterned region is configured to reduce an incidence of shunted or ambient light reaching the detector and wherein the patterned region protrudes less than about 0.001 mm from the tissue-contacting surface of the sensor body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A sensor comprising:
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a sensor body; an emitter disposed on the sensor body; a detector disposed on the sensor body; and a patterned region disposed on a tissue-contacting surface of the sensor body, wherein the patterned region comprises portions of a light absorbing material that are configured to reduce an incidence of shunted or ambient light reaching the detector and wherein the portions of the light absorbing material defining the patterned region are microscopic in scale. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A sensor comprising:
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a sensor body; an emitter disposed on the sensor body; a detector disposed on the sensor body; and at least one protrusion integrally formed with the sensor body and protruding non-orthogonally from a tissue-contacting surface of the sensor body, wherein the at least one protrusion comprises an irregular profile on a surface and wherein the at least one protrusion is configured to reduce an incidence of shunted or ambient light reaching the detector. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification