Motion compensation in a sensor
First Claim
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1. A physiological sensor comprising:
- an emitter configured to transmit light;
a detector configured to receive the transmitted light;
a first accelerometer disposed on a first portion of the sensor; and
a second accelerometer disposed on a second portion of the sensor, wherein the second portion opposes the first portion, and the first and second accelerometers are configured to measure a change in motion that corresponds to a change in distance between the detector and the emitter.
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Abstract
A physiological sensor includes an emitter configured to transmit light and a detector configured to receive the transmitted light. The sensor also includes a first accelerometer disposed on a first portion of the sensor and a second accelerometer disposed on a second portion of the sensor, the second portion opposing the first portion. The first and second accelerometers are configured to measure a change in motion that corresponds to a change in distance between the detector and the emitter.
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Citations
19 Claims
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1. A physiological sensor comprising:
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an emitter configured to transmit light; a detector configured to receive the transmitted light; a first accelerometer disposed on a first portion of the sensor; and a second accelerometer disposed on a second portion of the sensor, wherein the second portion opposes the first portion, and the first and second accelerometers are configured to measure a change in motion that corresponds to a change in distance between the detector and the emitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A physiological sensor comprising:
a clip style sensor body comprising; a first portion comprising an emitter configured to transmit light and a first accelerometer; a second portion opposing the first portion, the second portion comprising a second accelerometer, wherein the first and second accelerometers are configured to detect a change in motion. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A pulse oximetry system comprising:
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a sensor comprising; a first portion comprising an emitter configured to transmit light and a first accelerometer; a second portion opposing the first portion and comprising a detector configured to receive the light and a second accelerometer, wherein the first and second portions are configured to be clipped to a tissue of a patient, and wherein the first and second accelerometers are configured to detect a change in motion; and a pulse oximetry monitor configured to be coupled to the sensor, wherein the pulse oximetry monitor comprises a motion processor configured to receive signals from the first and second accelerometers related to the change in motion detected by the first and second accelerometers and to determine a change in distance between the detector and the emitter based on the received signals. - View Dependent Claims (17, 18, 19)
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Specification