Magnetic safety needle assembly
US8622975B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2010 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Sep 2, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/326
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A safety needle assembly is provided herein which includes a hub; a needle fixed to the hub, the needle having a distal end formed for insertion into a patient; a shield moveable relative to the hub from a first position, where the shield covers the distal end of the needle, to a second position, where the distal end of the needle is exposed and not covered by the shield; a first magnetic element fixed to the hub; and, a second magnetic element fixed to the shield. The first and second magnetic elements are configured so as to define a repulsive force therebetween which urges the first and second magnetic elements apart. The repulsive force urges the shield towards the first position. Advantageously, with the subject invention, a safety needle assembly may be provided which includes a minimal number of parts, without sacrificing reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.