Noninvasive measuring device for substance in blood via nail and a nail evaporation device
US8145286B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jan 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and method for optically measuring a substance in blood using the nail as an optical window are provided. A device for optically measuring a test substance in blood by using the nail as an optical window and correcting or eliminating fluctuation of a measurement value based on optical characteristics of the nail plate, comprising irradiation means applying light within a wavelength range for measuring absorption by the test substance to the nail of a subject, detection means detecting light diffused/reflected from or transmitted through the body of the subject, and processing means processing a signal obtained by the detection means to convert the signal into a concentration of the test substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.