MOTION COMPENSATION IN A SENSOR
First Claim
1. A physiological sensor comprising:
- an emitter configured to transmit light;
a detector configured to receive the transmitted light via a respective light path; and
a first accelerometer configured to measure a change in distance between the detector and the emitter.
2 Assignments
0 Petitions
Accused Products
Abstract
A system and method for compensating for movement in a sensor. A sensor may include an emitter configured to transmit light, a detector configured to receive the transmitted light via a respective light path, and an accelerometer configured to measure a change in distance between the detector and the emitter. The sensor may transmit the measurements relating to the change in distance between the detector and the emitter to a pulse oximetry monitor. The pulse oximetry monitor may generate an attenuation factor corresponding to the change in the distance between the detector and the emitter that may be used to compensate for movement in a sensor when calculating physiological parameters of a patient.
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Citations
20 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 via a respective light path; and a first accelerometer configured to measure 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 pulse oximetry system comprising:
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a sensor assembly comprising; an emitter configured to transmit light; a detector configured to receive the transmitted light via a light path; and an accelerometer configured to measure a change in distance between the detector and the emitter along the light path; and a pulse oximetry monitor configured to be coupled to the sensor, wherein the pulse oximetry monitor comprises a motion processor configured to receive measurements relating to the change in distance between the detector and the emitter from the accelerometer and to calculate an attenuation factor related to the measurements from the accelerometer. - View Dependent Claims (11, 12, 13, 14)
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15. A method comprising:
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detecting motion of a physiological sensor via an accelerometer; transmitting signals indicative of the motion of the physiological sensor to a monitor; and calculating an attenuation factor in the monitor based on the transmitted signals. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification