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US 2011/0213304 A1Published application
Retractable needle assembly utilizing a standard interface and syringe utilizing the same
AssigneeStat Medical Devices, Inc.
InventorSteven SCHRAGA
Life of this patent
Estimating the term…
Abstract
An injection device including a barrel, a hollow plunger having a portion structured and arranged to move within the barrel, a needle unit, and a safety system that one of automatically causes the needle unit to retract into the plunger when the plunger reaches a substantially fully depressed position. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
Claims21
A single-use injection device comprising:
- a barrel;
- a plunger having a portion structured and arranged to move within the barrel;
- a needle connecting arrangement that one of:
- comprises a needle connecting interface adapted to mate with a needle interface and an end integrally formed with the barrel;
- comprises a spring biased needle connecting member having an interface adapted to mate with a needle interface and being movable from an initial position to a retracted position within the barrel;
- comprises a needle connecting interface adapted to mate with a needle interface and an end that can be non-removably connected with the barrel;
- comprises a luer-lock interface which can retract into the barrel when the plunger is substantially fully depressed;
- comprises a movable member which includes a standard interface and which can retract into the barrel when the plunger is substantially fully depressed;
- comprises a movable member which includes a standard interface and which can retract into the plunger;
- comprises a movable member which includes an interface to which a needle member can be removably connected and which can retract into the barrel by a spring upon a movement of the plunger;
- comprises a body connectable to one end of the barrel and a movable member which includes an interface to which a needle member can be connected and which can retract into the barrel by a spring upon a movement of the plunger;
- comprises a body installable on one end of the barrel and a movable member which includes an interface to which a needle member can be connected, a retention arrangement allowing the movable member to be retained in an initial position, and which can retract into the barrel by a spring;
- and
- comprises an assembly which includes a body connectable to the barrel, a member comprising a needle connecting interface and a retention element, and a spring biasing the member toward a retracted position.
11 more elements
A single-use injection device comprising:
- a barrel;
- a hollow plunger having a portion structured and arranged to move within the barrel;
- a needle connecting arrangement comprising a spring and a needle member having a connecting interface, the needle member being movable automatically by the spring from an initial position to a retracted position within the barrel or the plunger.
A single-use injection device comprising:
- a barrel;
- a hollow plunger having a portion structured and arranged to move within the barrel;
- a needle connecting arrangement comprises a spring biased needle connecting member having an interface adapted to mate with a standard needle interface and being movable from an initial position to a retracted position within the barrel or the plunger.
A single-use injection device comprising:
- a barrel;
- a plunger having a portion structured and arranged to move within the barrel;
- a safety system that one of:
- automatically causes the needle unit to retract into the plunger when the plunger reaches a substantially fully depressed position;
- utilizes a separable connection arranged within the plunger;
- and
- utilizes a frangible or breakable seal arranged within the plunger.
4 more elements
Dependencies are inferred from the claim text.