FERGUSON, F. MARK,SNOW, JEREMY,BARRUS, ROY,SMITH, DANIEL,THORNE, DAVID,BAGLEY, CHANCE,SOLOMON, DONALD
申请号：
CA2516436
公开号：
CA2516436C
申请日:
2004.04.05
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
A medical needle shield apparatus (300) is provided that includes a needle hub(332) having an outer needle cannula (317) extending therefrom. An innerneedle (316) is disposed for slidable movement with the outer needle cannula(317). At least one shield (300) is extensible from a retracted position to anextended position to enclose a distal end of the inner needle (317). Theshield (300) includes a binding member (364) disposed within the shield (300)and defines binding surfaces (368) that form an aperture (366) configured forslidable receipt of the inner needle (316). The binding member (364) includesat least one drag inducing member (362) that engages the inner needle (316)during slidable receipt to create a drag force. The drag force facilitatesrotation of the binding member (364) such that the binding surfaces (368)engage the inner needle (316) to prevent slidable movement. The binding member(364) further includes a needle communicating surface (372) extendingtherefrom that engages the inner needle (316) to prevent rotation of thebinding member (364).
