SYSTEMS AND METHODS FOR ASSESSING MEASUREMENTS IN PHYSIOLOGICAL MONITORING DEVICES
First Claim
1. A method for initiating a recalibration of a physiological measurement, comprising:
- receiving a first electronic signal representative of a physiological process at a measurement device;
calculating a skewness value based at least in part on the received first signal;
generating an electronic recalibration signal based at least in part on a comparison of the first skewness value and at least one reference skewness value; and
initiating a recalibration of the measurement device based at least in part on the comparison.
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Accused Products
Abstract
Methods and systems are provided for deriving and analyzing shape metrics, including skewness metrics, from physiological signals and their derivatives to determine measurement quality, patient status and operating conditions of a physiological measurement device. Such determinations may be used for any number of functions, including indicating to a patient or care provider that the measurement quality is low or unacceptable, alerting a patient or care provider to a change in patient status, triggering or delaying a recalibration of a monitoring device, and adjusting the operating parameters of a monitoring system.
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Citations
20 Claims
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1. A method for initiating a recalibration of a physiological measurement, comprising:
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receiving a first electronic signal representative of a physiological process at a measurement device; calculating a skewness value based at least in part on the received first signal; generating an electronic recalibration signal based at least in part on a comparison of the first skewness value and at least one reference skewness value; and initiating a recalibration of the measurement device based at least in part on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for initiating a recalibration of a physiological measurement comprising:
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at least one memory device, capable of storing at least one reference skewness value; a calibration device, capable of initiating a recalibration of the system in response to a recalibration signal; a processor, communicably coupled to the at least one memory device and the calibration device and capable of receiving a first input signal, the processor configured to; calculate a skewness value based at least in part on the received first signal; retrieve the at least one reference skewness value from the at least one memory device; generate a recalibration signal based at least in part on a comparison of the skewness value and the at least one reference skewness value; and transmit the recalibration signal to the calibration device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. Computer-readable medium for use in initiating a recalibration of a physiological measurement, the computer-readable medium having computer program instructions recorded thereon for:
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receiving a first electronic signal representative of a physiological process; calculating a skewness value based at least in part on the received first signal; generating an electronic recalibration signal based at least in part on a comparison of the first skewness value and at least one reference skewness value; and initiating a recalibration of a measurement device based at least in part on the comparison. - View Dependent Claims (20)
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Specification