Patent ID: 6780169
Filing Date: 2004-08-24
Classification: A61B,A61M

Abstract:
A safety needle assembly comprising a needle cannula, a needle hub mounted to said needle cannula, a protrusion formed on said hub, said protrusion being formed with forward and rearward surfaces, and end surfaces extending between the forward and rearward surfaces, a shield having proximal and distal ends, said proximal end of said shield being hingedly mounted to said hub for rotation from a first position where said shield is spaced from said needle cannula to a second position where said shield substantially surrounds said needle cannula, said shield comprising a top wall and opposed sidewalls extending from said top wall, said side walls having bottom edges, a rounded projection formed on at least one of said side walls, a resiliently deflectable distal cannula lock projecting from one of said distal sidewalls angularly toward said top wall, and a proximal cannula lock having a base leg projecting from said bottom edge of one of said sidewalls in a direction away from said top wall and a resiliently deflectable cannula engaging leg projecting from an end of said base leg furthest from said top wall angularly back toward said top wall, whereby said distal cannula lock and said cannula engaging leg of said proximal cannula lock being configured for lockingly engaging said needle cannula when said shield reaches said second positron and whereby said rounded projection on said shield is disposed for engaging said protrusion on said hub when said shield approaches said second position.