Optical sensor for in situ measurement of analytes
US6671527B2 · kind B2 · utility
235Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2037/0023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assay implantation apparatus is provided comprising a sensor for use for the in vivo measurement of an analyte and means for implanting said sensor within an upper layer of the skin from which it is naturally ejected over time by growth of the skin and progressive replacement of the outer layer of the skin.The sensor may comprise microparticles containing a chemical assay system into which an analyte may diffuse from intercellular fluid and which assay system can be interrogated remotely by a light signal and a fluorescence sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.