Apparatus with rotatable valve syringe
US7169134B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | May 21, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C17/00516
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Valve syringes of the invention include a barrel, a plunger and an applicator valve. The applicator valve, which controls the flow of the fluid material contained within the barrel, can rotate at the end of the barrel between an open position and a closed position. In the open position, slots in the applicator valve align with holes in the barrel and allow the fluid material to flow therethrough. In the closed position, a contact surface seals the holes in the barrel closed to prevent the flow of the fluid material therethrough. The applicator valve includes an applicator tip that is either integrally connected to or detachably connected with the applicator valve. The valve syringe also includes means for releasably securing the applicator valve in the closed position to prevent undesired leaking and evaporation during periods of nonuse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.