Fluid sampling method
US5301686A · kind A · utility
138Cited by
22References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Aug 31, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/150992
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid sampling method in which a variable volume chamber between a needle site and a syringe creates a negative pressure at the tip on its removal from the needle site to reduce the exposure to liquid at the time of removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.