Prefilled syringe
US9101720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 28, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1458
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prefilled syringe has a gasket composed of a gasket body and a plunger-mounting member mounted. The plunger-mounting member has a distal part, spiral ribs formed on an outer surface of the distal part, a flange part, and a plunger-mounting part formed on an inner surface of a hollow part. The gasket body has a spiral screwing part which screws the spiral ribs and an accommodation part for accommodating a portion where the spiral ribs are formed. A plunger has a mounting distal part. The plunger-mounting part has a spiral concave portion and an engaging rib disposed at a side distal from the spiral concave portion. The mounting distal part of the plunger has a spiral projected portion capable of screwing the spiral concave portion and an engaging portion which engages the engaging rib of the plunger-mounting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.