Patent ID: 6436075
Filing Date: 2002-08-20
Classification: A61M

Abstract:
A syringe comprising:a hollow barrel pre-filled with medicine therein and including an open end and a closed end, a flange extending out from said open end and a piston securely and slidably received in said hollow barrel, and the piston having a pre-use position flush with said open end of said hollow barrel, a first seal adhered on said flange to close said open end of said hollow barrel, a stub centrally extending out from said closed end of said hollow barrel and having a through hole defined to communicate with an interior periphery of said hollow barrel, a second seal formed on a top of said stub to close said through hole, an annular groove defined in said closed end of said hollow barrel and surrounding said annular flange; a plunger including a first end removably attached to said piston after said first seal is removed and a second end having a bottom plate radially extending out therefrom; a needle hub attached to said stub, a needle securely inserted into said needle hub and penetrating said second seal to communicate with said through hole of said stub after said needle hub is attached to said stub; and a cap attached to said needle hub and including an open end and a closed end, said open end of said cap attached to and partially receiving said needle hub to receive said needle therein, said closed end of said cap having a top plate radially extending out therefrom, an apron extending from said periphery of said top plate towards said hollow barrel and mounted on said close end of said hollow barrel.