Injection syringe with mobile needle guard
US6893423B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/5073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The injection syringe has at least one syringe body (12) provided with a needle (22) and a pusher (14) mounted so as to be able to move in the body (12). The syringe has a movable guard (36) for protecting the injection end (22A) of the needle. The guard (36) is able to move with respect to the body (12) between a position retracted in the body (12) and an active protection position. The guard (36) and the body (12) have associated projecting and recessed reliefs for holding the guard in a retracted position. It has a retractable member (70) for positive holding of the engagement of the said associated reliefs, when the guard (36) is in a retracted position. The pusher (14) and the said holding member (70) are adapted for a retraction of the said holding member (70) under the action of the pushing in of the pusher (14) into the body, at the end of injection, providing a release of the positive holding of the engagement of the associated reliefs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.