Needle shroud assembly
US8088111B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Sep 1, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/59
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle shroud assembly (10) comprises a barrel (16), a needle shroud (18) captively telescoped relative to the forward end of the barrel for movement between retracted and extended positions and is biased towards said extended position by a spring (25). A separate locking element (42) is mounted within the barrel moveable between a safe position (as seen in FIG. 5) in which it prevents or limits retraction movement of said needle shroud (18), and a live position in which it is clear of the rearward path of the needle shroud (18). The locking member is moved from its safe position to its live position by means of an externally operable actuating member (54), having a cam (52) which cooperates with a cam surface (46) on the locking element (42). The cam (52) is driven back to its original position by the rearward end of the shroud (18) as it moves to the fully retracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.