基本信息:
- 专利标题： 预填充的可缩回注射器、柱塞及其针头组件
- 专利标题（英）：Prefilled retractable syringe, plunger and needle assembly therefor
- 申请号：CN200880021389.0 申请日：2008-07-02
- 公开(公告)号：CN101730558A 公开(公告)日：2010-06-09
- 发明人： C·索利 , J·卡尔 , C·拉弗蒂 , R·索科洛夫 , E·韦索 , H·沃利斯 , S·C·张
- 申请人： 尤尼特拉克特注射器公司
- 申请人地址： 澳大利亚新南威尔士州
- 专利权人： 尤尼特拉克特注射器公司
- 当前专利权人： 尤尼特拉克特注射器公司
- 当前专利权人地址： 澳大利亚新南威尔士州
- 代理机构： 北京戈程知识产权代理有限公司
- 代理人： 程伟; 王锦阳
- 优先权： 2007903565 2007.07.02 AU; 61/012,643 2007.12.10 US
- 国际申请： PCT/AU2008/000971 2008.07.02
- 国际公布： WO2009/003234 EN 2009.01.08
- 进入国家日期： 2009-12-22
- 主分类号： A61M5/50
- IPC分类号： A61M5/50
A retractable syringe, plunger and releasable needle retaining assembly are provided. The retractable syringe typically has a glass barrel and is prefilled with fluid contents before use. The releasable needle retaining system comprises a retractable needle, a needle seal, a retaining member and an ejector member that is operable to release the retractable needle from the retaining member. The retaining member has a mating surface for mounting to a complementary mating surface of an interior wall of a syringe barrel. The plunger comprises a plunger outer, a plunger rod frangibly connected to a controlling member, a spring and a unitary plunger seal capable of engaging the retractable needle, wherein the plunger rod, plunger outer and the controlling member co-operate to releasably maintain the spring in an initially compressed state. After delivery of fluid contents of the syringe, the plunger forces the ejector member to release the retractable needle from the retaining member. Decompression of the spring at the end of depression of the plunger facilitates retraction of the retractable needle when engaged with the unitary plunger seal. Dual locking systems prevent re-use of the syringe after needle retraction.
公开/授权文献:
- CN101730558B 预填充的可缩回注射器、柱塞及其针头组件 公开/授权日：2013-04-03