Assembly for syringe, prefilled syringe, seal cap for barrel and package for assembly for syringe
US10086148B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 2018 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Feb 19, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/312
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An assembly of the present invention for a syringe is composed of a barrel, made of cyclic polyolefin, which has a barrel body having a distal end part and a piercing needle which has a piercing needle tip at its distal end and is fixed to a piercing needle fixing portion of the barrel and a seal cap mounted on the barrel. The seal cap is formed of a thermoplastic elastomer composition containing as its main component a mixture of a styrene-based thermoplastic elastomer and a softener, for hydrocarbon-based rubber, which has a kinematic viscosity of 1 to 5,000 mm2s−1 at 100 degrees C. and a naphthenic carbon ratio (% CN) of not more than 20% when said naphthenic carbon ratio is measured by ring analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.