Patent ID: 6635032
Filing Date: 2003-10-21
Classification: A61B,A61M,Y10S

Abstract:
A passively activated safety needle assembly comprising:a needle cannula with opposite proximal and distal ends; and a shield assembly having a safety shield slidably mounted on said needle cannula and movable from a proximal position substantially adjacent said proximal end of said needle cannula to a distal position surrounding said distal end of said needle cannula, said shield assembly further comprising a plurality of hingedly connected arms with at least two arms being hingedly connected at a hinge connection extending between said safety shield and a location in proximity to said proximal end of said needle cannula for limiting distal movement of said safety shield along said needle cannula, said shield assembly further comprising a torsion spring securably disposed at said hinge connection for urging said safety shield from said proximal position to said distal position.