Methods for non-invasive analyte measurement from the conjunctiva
US6975892B2 · kind B2 · utility
11Cited by
120References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2004 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | May 24, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14546
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is related to non-invasive methods and instruments to detect the level of analyte concentrations in the tissue of a subject by measuring electromagnetic radiation signatures from the subject's conjunctiva. The spectra of mid-infrared radiation emitted from a subject's body are altered corresponding to the concentration of various compounds within the radiating tissue. In one aspect of the invention, an instrument floods the conjunctiva of the subject with electromagnetic radiation in the mid-infrared range and measures analyte concentrations based on mid-infrared radiation reflected back to the instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.