TIEMING RUAN,STEPHEN RICHARDS,ELIOT ZAIKEN,CRAIG NEWMAN,VADIM GOYKHMAN,JOSEPH ALU,MICHAEL VINCENT QUINN
申请号：
US14134810
公开号：
US20140107586A1
申请日:
2013.12.19
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A safety pen needle assembly is provided herein which includes a hub and a needle fixed to the hub. Further, a first shield is provided, along with a second shield which has a biasing element disposed to urge the second shield proximally towards a proximal end of the needle. The assembly further includes a releasable retaining assembly for releasably retaining the second shield in an initial position against the force of the biasing element. A predetermined extent of movement of the first shield causes the retaining assembly to release the second shield. With the second shield being released, the second shield is urged proximally by the biasing element to a second position where the second shield covers the proximal end of the needle. Advantageously, an assembly is provided which allows for passive activation of a shield on a non-patient end of a pen needle assembly by a patient-end shield.
