System and method for estimating blood analyte concentration
First Claim
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1. A system for estimating blood analyte concentration comprising:
- a sensor comprising;
a plurality of light sources configured to operate at different wavelengths; and
a detector configured to generate signals based on light from the plurality of light sources; and
a monitor coupled to the sensor configured to;
receive the signals generated by the detector;
determine the different wavelengths at which the plurality of light sources operate;
select a support vector regression function for the different wavelengths at which the plurality of light sources operate;
estimate blood analyte concentration using the selected support vector regression function in a support vector regression analysis of the received signals; and
output the estimated blood analyte concentration.
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Abstract
There is provided a system and method for estimating blood analyte concentration using a non-invasive medical device. The method includes detecting light from a plurality of light sources and generating signals representative of observed absorption of the light from the plurality of light sources. Blood analyte concentrations are then estimated using support vector regression analysis.
970 Citations
20 Claims
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1. A system for estimating blood analyte concentration comprising:
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a sensor comprising; a plurality of light sources configured to operate at different wavelengths; and a detector configured to generate signals based on light from the plurality of light sources; and a monitor coupled to the sensor configured to; receive the signals generated by the detector; determine the different wavelengths at which the plurality of light sources operate; select a support vector regression function for the different wavelengths at which the plurality of light sources operate; estimate blood analyte concentration using the selected support vector regression function in a support vector regression analysis of the received signals; and output the estimated blood analyte concentration. - View Dependent Claims (2, 3, 4, 5)
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6. A method for non-invasively estimating blood analyte concentration comprising:
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operating a plurality of light sources at different wavelengths; detecting light from the plurality of light sources; generating signals representative of observed absorption of the light from the plurality of light sources; determining the different wavelengths at which the plurality of light sources are operating; selecting a support vector regression function for the different wavelengths at which the plurality of light sources are operating; and estimating blood analyte concentration using the selected support vector regression function in a support vector regression analysis of the generated signals. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A monitor comprising:
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a memory configured to store one or more support vector regression functions for different wavelengths; a processor configured to receive signals generated by a sensor, determine different wavelengths at which a plurality of light sources within the sensor operate, select a support vector regression function for the different wavelengths at which the plurality of light sources operate, and estimate blood analyte concentration using the selected support vector regression function in a support vector regression analysis of the received signals; and a display configured to display the estimated blood analyte concentration. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification