Patent ID: 6723074
Filing Date: 2004-04-20
Classification: A61M

Abstract:
A sequential delivery syringe comprising:a body having an internal chamber, said body substantially closing said internal chamber at one end and being opened at an opposite end of said internal chamber; a piercing member mounted on said one end, said piercing member extending within said internal chamber; a mid-piston movably mounted within said internal chamber, said mid-piston dividing said internal chamber into a front section and a rear section; a stopper piston mounted within said rear section, said stopper piston being attached to a plunger, said plunger being located within said opposite end of said internal chamber and extending exteriorly of said body; means for collapsing mounted in said rear section, a first liquid to be contained within said means, said means being normally closed; a second liquid to be contained within said front section, whereby upon movement of said plunger and said stopper piston toward said one end said second liquid to be discharged through said discharge passage until said mid-piston is penetrated by said piercing member which provides access into said means for collapsing and permits said first liquid to be discharged through said discharge passage; a luer lock mounted on said one end, said luer lock having a collar which surrounds an internal annular chamber, a tapered male luer mounted to said collar and extending within said internal annular chamber, said tapered male luer being centrally mounted within said annular chamber; and said collar having a plurality of holes through which both said first liquid and said second liquid is to flow into said discharge passage.