Mold for gasket for prefilled syringe
US9452264B2 · kind B2 · utility
11Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Apr 3, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7544
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pre-filled syringe with excellent air-tightness and liquid-tightness and a mold for forming the gasket are provided. At least a surface of the mold for a gasket laminated with an inactive film for a pre-filled syringe forms a seal sliding surface of an annular protrusion of the gasket is mirror finished to have an arithmetic mean roughness Ra of less than 0.03 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.