Syringe with retractable needle guard
US6183445A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1997 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Sep 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3252
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a syringe with a retractable needle guard. The syringe has two coaxial tubular bodies, an inner and an outer body, which are adapted to telescope in relationship to each other. The outer tubular body is adapted to at least partially receive the body of the container from which fluid is to be drawn and the inner tubular body is adapted to be displaced from a retracted position to an advanced position. In the retracted position the needle is exposed, while in the advanced position the needle is surrounded by the inner tubular body. The syringe with a retractable needle guard may also be adapted to connect the outer tubular body with the needle without connecting it to the container from which fluid is to be drawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.