Needle assembly
US6659983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Apr 30, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3257
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automatically shieldable blood collection set is provided. The blood collection set includes a needle assembly having a hub to which a needle cannula is fixedly attached. The needle hub includes a fin formed with a latch. A safety shield is telescoped relative to the hub and the needle cannula and can be moved from a proximal position where the needle cannula is exposed to a distal position where the needle cannula is safely shielded. The latch on the fin releasably engages the shield when the shield is in the proximal position. A spring is provided between the shield and the hub to propel the shield distally relative to the hub and into surrounding relationship with the needle cannula in response to movement of the latch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.