Plastic syringe
First Claim
1. A prefilled disposable plastic syringe comprising an open ended barrel having needle fitting disposed at one end and being sealed at the other end by a moveable stopper, said needle fitting end of the barrel being sealed by a closure which is integral with the needle fitting, said closure being fragibly connected to said needle fitting by a circumferential web such that application of a downward force onto said needle fitting closure will cause said closure to separate from the needle fitting and move at least some way into the syringe to reveal the contents of the syringe for injection.
1 Assignment
0 Petitions
Accused Products
Abstract
A prefilled disposable plastic syringe (1) comprising an open ended barrel (2) having a needle fitting (6) disposed at one end and being sealed at the other end by a moveable stopper (4) wherein said needle fitting end of the barrel (2) is sealed by a frangible closure (7) which is integral with the needle fitting (6), said closure being adapted to cooperate with a hypodermic needle support (21) shaped to fit onto said needle fitting (6) such that application of a downward force on said hypodermic needle support (21) onto said needle fitting (6) causes said closure (7) to separate from the needle fitting and move at least some way into the body of the syringe (1) and thereby reveal the contents of the syringe (1) for injection.
34 Citations
14 Claims
- 1. A prefilled disposable plastic syringe comprising an open ended barrel having needle fitting disposed at one end and being sealed at the other end by a moveable stopper, said needle fitting end of the barrel being sealed by a closure which is integral with the needle fitting, said closure being fragibly connected to said needle fitting by a circumferential web such that application of a downward force onto said needle fitting closure will cause said closure to separate from the needle fitting and move at least some way into the syringe to reveal the contents of the syringe for injection.
- 13. A prefilled disposable plastic syringe comprising an open ended barrel having a needle fitting disposed at one end and being sealed at the other end by a moveable stopper, said needle fitting end of the barrel is sealed by a closure which is integral with the needle fitting, said closure being frangibly connected to said needle fitting such that application of a downward force onto said needle fitting closure will cause said closure to separate from the needle fitting and move at least some way into the syringe to reveal the contents of the syringe for injection, wherein the body of the syringe comprises a needle fitting compartment located inside the needle fitting section of the syringe body and a main body compartment located in the remaining portion of the syringe body which is sealed by the moveable stopper wherein a portion of the internal wall of the needle fitting comprises a stop member that prevents movement of the closure into the main body compartment of the syringe after it has been separated from the needle fitting.
Specification