Combination stopper-shield closure
US5632396A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1994 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/150572
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A body fluid collection assembly includes a tube having an outside surface, an open end and a closed end forming a chamber having an inside wall for holding a body fluid, the tube has a raised annulus at the open end. The assembly includes a closure with a shield having a top, an opening therethrough and a cavity for receiving the open end of the tube. The cavity has an inside surface having at least one protuberance projecting inwardly from the inside surface so that when the open end of the tube is in the cavity, the protuberance engages said annulus retaining said shield on the tube. The assembly includes a sealing element having a top surface and a lower flange and a gas barrier member bonded to the lower flange to form a primary seal with the inside wall of the tube and a secondary seal at the open end of the tube. The assembly further includes a plug housing having a passage and a resilient plug mounted in the passage, and elements for releasably mounting the plug housing on the shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.