Safety needle assembly
US9642971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2009 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Jun 30, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3263
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A safety needle assembly is provided herein which includes a hub; a needle fixed to the hub; a first shield having a tubular body at least partially encircling a portion of the needle, wherein in an initial state, the first shield extends from the hub; a second shield having a tubular body at least partially encircling a portion of the needle; a biasing element disposed to urge the second shield distally towards a distal end of the needle; and, a releasable retaining arrangement for releasably retaining the second shield in a first state. Upon a predetermined extent of proximal movement of the first shield relative to the hub, the second shield is released to a second state in which the distal end of the needle is covered. Advantageously, two shields are provided for at least partially covering a needle with one of the shields acting as a trigger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.