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GASKET USING SLIDABLE MEDICAL SILICONE RUBBER, AND SYRINGE USING SAID GASKET
专利权人:
发明人:
申请号:
EP15848456.8
公开号:
EP3061477B1
申请日:
2015.04.24
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
A syringe is to be obtained by using PTFE for a gasket main body that makes a direct contact with an injection solution and using a slidable silicone rubber at a portion that does not make contact with the injection solution. A syringe A includes a syringe barrel 1, a gasket 10 press-fitted within the syringe barrel 1, and a plunger rod 5 mounted in the gasket 10. In the gasket 10, a concaved groove 18 is formed over the whole circumference of a slide-contact surface 11 of a main body portion 26 that is formed of a rigid plastic having a drug solution-resistant property against a drug solution 30 to be loaded in the syringe barrel 1 and that is configured to slidingly contact an inner circumferential surface 2 of the syringe barrel 1. In a slide-contact ring 19 that is to be fitted in the concaved groove 18 and that is configured to slidingly contact the syringe barrel inner circumference surface 2, a silicone oil and a spherical ultrahigh molecular weight fine powder are added to a silicone rubber base material 19c.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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