Fluid transfer device
US4808381A · kind A · utility
95Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1983 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Aug 1, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L3/50825
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid transfer device having a cannula for piercing a stopper and a surrounding shroud to guide the cannula during piercing. The cannula is positioned parallel to and off-center from the shroud axis in a position opposite to the direction of the taper of the point of the cannula to compensate for the sideways movement created during the piercing of the closure and to cause the cannula tip to be located approximately on the receptacle axis after piercing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.