Abstract: A method of multi-tier classification and calibration in noninvasive blood analyte prediction minimizes prediction error by limiting co-varying spectral interferents. Tissue samples are categorized based on subject demographic and instrumental skin measurements, including in vivo near-IR spectral measurements. A multi-tier intelligent pattern classification sequence organizes spectral data into clusters having a high degree of internal consistency in tissue properties. In each tier, categories are successively refined using subject demographics, spectral measurement information and other device measurements suitable for developing tissue classifications.
The multi-tier classification approach to calibration utilizes multivariate statistical arguments and multi-tiered classification using spectral features.
Type:
Grant
Filed:
April 3, 2001
Date of Patent:
January 28, 2003
Assignee:
Sensys Medical, Inc.
Inventors:
Thomas B. Blank, Stephen L. Monfre, Timothy L. Ruchti, Suresh Thennadil
Abstract: A method of multi-tier classification and calibration in noninvasive blood analyte prediction minimizes prediction error by limiting co-varying spectral interferents. Tissue samples are categorized based on subject demographic and instrumental skin measurements, including in vivo near-IR spectral measurements. A multi-tier intelligent pattern classification sequence organizes spectral data into clusters having a high degree of internal consistency in tissue properties. In each tier, categories are successively refined using subject demographics, spectral measurement information and other device measurements suitable for developing tissue classifications. The multi-tier classification approach to calibration utilizes multivariate statistical arguments and multi-tiered classification using spectral features.
Type:
Grant
Filed:
September 18, 2000
Date of Patent:
January 28, 2003
Assignee:
Sensys Medical, Inc.
Inventors:
Stephen L. Monfre, Thomas B. Blank, Timothy L. Ruchti, Suresh Thennadil