Method for non-invasive blood analyte measurement with improved optical interface
US5655530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/146
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for non-invasively measuring the concentration of an analyte, particularly blood analyte in blood. The method utilizes spectrographic techniques in conjunction with an improved optical interface between a sensor probe and a skin surface or tissue surface of the body containing the blood to be analyzed. An index-matching medium is disclosed to improve the interface between the sensor probe and skin surface during spectrographic analysis. In a preferred embodiment, the blood analyte concentration in blood is quantified utilizing a partial squares analysis relative to a model incorporating analysis of plural known blood samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.