Cap and stopper
US4202334A · kind A · utility
23Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1978 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | Feb 28, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3109
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A combination cap and stopper for sealing a substance within a syringe whether the needle remains on the syringe or is removed, consisting of a rubber or plastic device having a generally cylindrical portion and a portion having a generally frustoconical shape. The cylindrical portion has a frustoconical axial bore therein with an axially extending groove formed in the frustoconical wall and at the bottom end of the bore a plug-like cylindrical protrusion. The portion of generally frustoconical shape being solid and having a raised target on its base so as to aid in proper insertion of a cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.