INGRAM, BRUCE WALLACE,NORTHCOTT, RUPERT,BERRY, ANDREW
申请号：
CA2559089
公开号：
CA2559089C
申请日:
2005.03.16
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
A single use retractable syringe (10) has an inner barrel (44) supporting aneedle (16) at one end and is slidable within an outer barrel (11). In thepackaged condition the inner barrel is in a position relative to the outerbarrel such that the needle can be attached to a Luer connection on the innerbarrel and projects from a first end (18) of the outer barrel. The innerbarrel has first and second latching means (40, 41, 43) adjacent each end,respectively, and the outer barrel has retaining means (48) on the inner wallsurface adjacent the second end thereof. When the inner barrel first latchingmeans (40) is engaged with the retaining means the syringe is in positionready for use and after the first full depression of a plunger the innerbarrel is released and moves to a position where the second latching means(41, 43) becomes permanently engaged with the retaining means. The needle isthen fully enclosed within the outer barrel and the inner barrel projects fromthe second end (19) of the outer barrel.
