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Dual chamber mixing device for a syringe
专利权人:
Robert E. Johannesson;Philip A. Weaver;Peter J. Dungar;Aaron M. Weir;Ashley W. Palmer;Ramin Mojdehbakhsh
发明人:
Ramin Mojdehbakhsh,Peter J. Dungar,Ashley W. Palmer,Robert E. Johannesson,Philip A. Weaver,Aaron M. Weir
申请号:
US13566079
公开号:
US09205194B2
申请日:
2012.08.03
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A mixing device and a retractable syringe comprising same are provided. The mixing device comprises concentric outer and inner barrels that form an outer chamber, the inner barrel having an inner chamber. A mixing plunger is slidably located in the outer chamber. A seal located in the outer chamber is capable of axial movement, in response to depression of the mixing plunger, from a first position in sealing engagement with one or more apertures in the inner barrel to a second position intermediate the apertures and vents in the outer barrel. This allows depression of the mixing plunger to force a first substance from the outer chamber through the apertures to mix with a second substance in the inner chamber. The mixed substance in the inner barrel is then delivered by the syringe with subsequent needle retraction.
来源网站:
中国工程科技知识中心
来源网址:
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