Patent ID: 7468054
Filing Date: 2008-12-23
Classification: A61M

Abstract:
1. A medical device for delivering a medicament to a patient, comprising: a syringe assembly comprising: a hollow shield body receiving said syringe barrel therein, said syringe barrel being selectively movable within said shield body between a first position in which said forward tip of said needle cannula is exposed, and a second position in which said forward tip of said needle cannula is contained within said shield body; a flange clip fixedly coupled to said hollow shield body proximate a rear facing end of said hollow shield body, wherein said flange clip comprises a first retainer fixedly coupled to said hollow shield body to prevent axial movement of said first retainer with respect to said hollow shield body, said first retainer releasably securing said syringe barrel in said first position, and a second retainer spaced axially from said first retainer, wherein said radial flange is positioned between said first and second retainers when said syringe barrel is in said second position, said hollow shield body further comprises a rim and said flange clip comprises a recess engaging said rim for connecting said flange clip to said hollow shield body, said recess being arranged axially between said first and second retainers; and an urging member acting on a portion of said hollow shield body and said radial flange of said syringe barrel for urging said syringe barrel from said first position toward said second position, said thumb pad being configured to interact with said first retainer upon movement of said stopper to a position proximate said syringe barrel forward end to release said syringe barrel from said first retainer and enable said urging member to move said syringe barrel from said first position to said second position upon release of medicament delivery pressure from said thumb pad.