Method and apparatus for non-invasive monitoring of blood substances using self-sampled tears
US7133712B2 · kind B2 · utility
11Cited by
12References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Apr 27, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/144444
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for non-invasively determining the concentration of a substance in blood, such as glucose, include a sample portion arranged for contacting an eye region of a user to obtain a tear fluid sample, a sensor in communication with the sample portion for generating a signal related to the tear substance concentration, and a processor in communication with the sensor for determining a blood substance concentration corresponding to the tear substance concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.