Accommodating subject and instrument variations in spectroscopic determinations
US7098037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2002 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Nov 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/144444
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for measuring a biological attribute, such as the concentration of an analyte, particularly a blood analyte in tissue such as glucose. The method utilizes spectrographic techniques in conjunction with an improved instrument-tailored or subject-tailored calibration model. In a calibration phase, calibration model data is modified to reduce or eliminate instrument-specific attributes, resulting in a calibration data set modeling intra-instrument or intra-subject variation. In a prediction phase, the prediction process is tailored for each target instrument separately using a minimal number of spectral measurements from each instrument or subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.