专利内容由知识产权出版社提供
专利名称：AUTOMATICALLY RETRACTABLE
MEDICALLY SAFETY INJECTOR ANDPLUNGER COMBINATION THEREOF
发明人：Lee LIN LEE申请号：US12208774申请日：20080911
公开号：US20100063443A1公开日：20100311
专利附图：
摘要：A medically safety injector comprises a needle hub attached by a needle, ahollow barrel for engaging with the needle hub and guiding the needle hub to retract
into the hollow barrel, and a plunger combination settled in the hollow barrel. Theplunger combination comprises a retractable plunger and a hollow shank partiallytelescoped with the retractable plunger, wherein at least one raised portion is formed onan outer wall of the retractable plunger and at a telescoping portion for engaging atleast one depression formed on an inner wall of the hollow shank so that when theplunger combination continuously receives a pushing force after the medically safetyinjector is used to perform the injection operation, the retractable plunger can smoothlyretract into the hollow shank. Consequently, space in the hollow barrel can be spared foraccommodating the retracted needle hub.
申请人：Lee LIN LEE
地址：Taipei City TW
国籍：TW
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