Oral fluid collection article
US4817632A · kind A · utility
28Cited by
31References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Jun 23, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/2071
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is an oral fluid collection article for placement in the buccal cavity of an individual for the collection and fittering of a saliva fluid. The collection article has a semi-permable membrane container enclosing an osmotic substance means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.