Continuous transdermal monitoring system and method
First Claim
1. A method for minimizing the effects of motion artifact on sensor readings taken during continuous transdermal monitoring of a body part in motion, the method comprising:
- monitoring, with a processor, an output signal from an accelerometer, wherein the output signal indicates acceleration and deceleration of the body part of a user as the body part is in motion;
determining, with the processor, from the output signal that the body part of the user has decelerated to a predetermined minimum before becoming momentarily stationary to begin acceleration;
based on the determination that the body part of the user has decelerated to the predetermined minimum, determining, with the processor, a plurality of readings from a sensor, wherein determining the plurality of readings from the sensor occurs over a time window that includes the body part of the user becoming momentarily stationary; and
recording in a memory device the determined plurality of readings from the sensor.
3 Assignments
0 Petitions
Accused Products
Abstract
Various embodiments of methods and systems for continuous transdermal monitoring (“CTM”) are disclosed. One exemplary method for CTM begins by monitoring an output signal from an accelerometer. The accelerometer output signal may indicate acceleration and deceleration of a body part of a user, such as the user'"'"'s wrist. Based on the accelerometer output signal, it may be determined that the body part of the user has decelerated to a minimum, e.g., substantially zero. With a determination that the body part has decelerated to the minimum, e.g., substantially zero, or has not accelerated beyond the minimum, e.g., substantially zero, the method may determine a reading from a pulse oximeter associated with the accelerometer. Advantageously, the pulse oximetry reading, or a reading from other sensors associated with the accelerometer, may be optimally accurate as motion artifact may be minimized. The pulse oximetry reading may be recorded for later query and/or rendered for the benefit of the user.
20 Citations
20 Claims
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1. A method for minimizing the effects of motion artifact on sensor readings taken during continuous transdermal monitoring of a body part in motion, the method comprising:
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monitoring, with a processor, an output signal from an accelerometer, wherein the output signal indicates acceleration and deceleration of the body part of a user as the body part is in motion; determining, with the processor, from the output signal that the body part of the user has decelerated to a predetermined minimum before becoming momentarily stationary to begin acceleration; based on the determination that the body part of the user has decelerated to the predetermined minimum, determining, with the processor, a plurality of readings from a sensor, wherein determining the plurality of readings from the sensor occurs over a time window that includes the body part of the user becoming momentarily stationary; and recording in a memory device the determined plurality of readings from the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for minimizing the effects of motion artifact on sensor readings taken during continuous transdermal monitoring of a body part in motion, the system comprising:
a sensor package comprising a processor, an accelerometer, a sensor and a memory device, the sensor package configured to; monitor an output signal from the accelerometer, wherein the output signal indicates acceleration and deceleration of the body part of a user as the body part is in motion; determine from the output signal that the body part of the user has decelerated to a predetermined minimum before becoming momentarily stationary to begin acceleration; based on the determination that the body part of the user has decelerated to the predetermined minimum, determine a plurality of readings from the sensor, wherein the determined plurality of readings from the sensor occurs over a time window that includes the body part of the user becoming momentarily stationary; and record the determined plurality of readings from the pulse oximeter in the memory device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product comprising a non-transitory computer usable medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed by a processor and cause the processor to implement a method for minimizing the effects of motion artifact on sensor readings taken during continuous transdermal monitoring of a body part in motion, said method comprising:
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monitoring an output signal from an accelerometer, wherein the output signal indicates acceleration and deceleration of the body part of a user as the body part is in motion; determining from the output signal that the body part of the user has decelerated to a predetermined minimum before becoming momentarily stationary to begin acceleration; based on the determination that the body part of the user has decelerated to the predetermined minimum, determining a plurality of readings from a sensor, wherein determining the plurality of readings from the sensor occurs over a time window that includes the body part of the user becoming momentarily stationary; and recording in a memory device the determined plurality of readings from the sensor. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification