Medical sensor and technique for using the same
First Claim
Patent Images
1. A sensor comprising:
- a sensor body adapted to be placed on a patient'"'"'s appendage;
an emitter and a detector disposed on the sensor body; and
a pressure-sensitive structure associated with the emitter or the detector,wherein the pressure-sensitive structure is adapted to provide an electrical feedback related to a pressure applied to the emitter or the detector.
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Abstract
A sensor may be adapted to provide output to indicate when the sensor experiences abnormal forces or pressure. The forces may be outside forces, or the forces may be generated by patient motion. A sensor system as provided may also be adapted to correct for such forces when calculating measurements related to a physiological characteristic.
915 Citations
48 Claims
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1. A sensor comprising:
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a sensor body adapted to be placed on a patient'"'"'s appendage; an emitter and a detector disposed on the sensor body; and a pressure-sensitive structure associated with the emitter or the detector, wherein the pressure-sensitive structure is adapted to provide an electrical feedback related to a pressure applied to the emitter or the detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pulse oximetry system comprising:
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a pulse oximetry sensor comprising; a sensor body; at least one sensing element disposed on the sensor body; a pressure-sensitive structure associated with the sensor body, wherein the pressure-sensitive structure is adapted to provide an electrical feedback related to a pressure applied to the sensor body; and a pulse oximetry monitor adapted to be operatively coupled to the sensor, wherein the pulse oximetry monitor is capable of processing the electrical feedback to determine if the pressure is associated with a signal artifact. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method comprising:
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emitting light into a tissue with an emitter; detecting the light with a detector; measuring a physiological characteristic based on the detected light; detecting a force experienced by at least one of the emitter and the detector with a force-sensitive sensor; determining if the force is greater than a threshold value associated with a signal artifact; and triggering an alarm when the force is greater than the threshold value. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of manufacturing a sensor, comprising:
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providing a sensor body adapted to be placed on a patient'"'"'s appendage on which an emitter and detector are disposed; and providing a pressure-sensitive structure disposed on the sensor body associated with the emitter or the detector, wherein the pressure-sensitive structure is adapted to provide an electrical feedback related to a pressure applied to the emitter or the detector. - View Dependent Claims (42, 43, 44, 45, 46)
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47. A method comprising:
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acquiring pressure data and oxygen saturation data from a sensor; correlating the acquired pressure data to a set of reference artifact data; and determining if the oxygen saturation data comprises a motion artifact. - View Dependent Claims (48)
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Specification