Pierceable cap having piercing extensions
US8387811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2007 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/0672
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pierceable cap maybe used for containing sample specimens during storage and transport. The pierceable cap may prevent unwanted escape of sample specimen before transfer with a transfer device. The pierceable cap may fit over a vessel. An access port in the pierceable cap may allow passage of a tip of a transfer device though the pierceable cap. Multiple frangible layers maybe disposed across the access port. One or more extensions proximate to a lower frangible layer may rotate around one or more coupling regions during insertion of the transfer device. The movement of the one or more extensions may pierce the lower frangible layer to create airways and allow air to escape from a vessel at a reduced velocity. Upper frangible layers may prevent escape of materials from spaces intermediate between the lower frangible layer and the upper frangible layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.