Syringe barrel
US4589871A · kind A · utility
31Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1985 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Mar 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49746
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe barrel includes an elongate barrel portion having a chamber for retaining fluid and a tip extending from a distal end of the barrel portion having a passageway therethrough communicating with the chamber. A coating on the tip increases the roughness of the tip so that the force required to remove a fluid transfer apparatus, removably connected to the tip by a frictional interference fit, is greater than the force required to remove the fluid transfer apparatus from an identically sized tip without the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.