AHMET TEZEL,BASTIEN MANDAROUX,BLAKE R. STORIE,CHRISTOPHER S. MUDD,KEVIN MCNERNEY
申请号：
BRPI0922629
公开号：
BRPI0922629A2
申请日:
2009.12.02
申请国别(地区):
BR
年份:
2016
代理人:
摘要：
An injection device (10) includes a syringe (12) having a body (14) with a piston (18) disposed therein with an open end. A needle assembly (26) is provided which includes a cannula (30) having a luer connection engageable with the syringe distal end with the luer connector including a hub. Mating engagement is provided by way of internal threads at the syringe distal end and external threads of a hub with a pitch sufficient to prevent detachment of the hub from the syringe distal end during ejection of fluid. In addition, a stepped cavity, disposed in the hub, further prevents detachment of the hub from the syringe distal end during ejection of fluid.
