Connector for liquid transfer device
US5135513A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1991 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Mar 21, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3123
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A transfer instrument (50), consisting of a prefilled disposable syringe, comprises a container (51) containing the liquid to be injected, a piston (52), and a piston rod (53) attached to the bottom of a capsule (54) with a tubular tip (58). This tubular tip has an inner surface (62) in the shape of a truncated cone to admit an insert (66) and an outer surface (64) in the shape of a truncated cone with a taper of 6%, capable of receiving a standard cap (59) fitted with a needle (60). A throat (73) is provided at the periphery of the insert (66) to permit the flow of the injection liquid and to obviate the need for a large dead volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.