Tamper evident end cap assembly for a loaded syringe and process
AssigneeMedical Device Engineering, LLC.
InventorJonathan J. Vitello
Life of this patent
Estimating the term…
Abstract
An improved tamper evident end cap assembly for a drug loaded syringe which assembly includes a syringe cap to close the discharge port in the nozzle of the syringe and an indicator ring about the nozzle connected by chads or tabs to a tubular shield which chads or tabs are adapted to break freeing the ring from the shield to loosely wobble on the nozzle indicating tampering if an axial force of separation is applied to the syringe cap to remove it from the syringe and a one way drive mechanism engaging both the shield and syringe cap so the shield may be rotated to advance the assembly onto a syringe nozzle but which is not responsive to counter rotation to withdraw the syringe cap to open the discharge port and gain access to the drug.
Claims19
An end cap assembly for a syringe having a nozzle with a discharge port, said assembly comprising
- an end cap member including at least one open end dimensioned to receive the nozzle therethrough,
- a syringe cap movably disposed within said end cap member and axially positionable into a fluid restricting position relative to the discharge port,
- a drive assembly at least partially connected to and movable with said end cap member into driving engagement with said syringe cap,
- said drive assembly disposed and structured to orient said syringe cap into said fluid restricting position relative to the discharge port, and
- a cover secured to said end cap member in overlying, covering relation to said one open end and in sealing relation to an interior of said end cap member.
An end cap assembly for a syringe having a nozzle with a discharge port, said assembly comprising:
- an end cap member including at least one open end dimensioned to receive the nozzle therethrough,
- a syringe cap movably disposed within said end cap member and axially positionable into a fluid restricting position relative to the discharge port,
- a tamper evident assembly disposed within said end cap member in cooperative relation to said syringe cap, said tamper evident assembly structured for relative movement with said end cap member upon removal of syringe cap from said fluid restricting position,
- a drive assembly at least partially connected to and movable with said end cap member into driving engagement with said syringe cap,
- a cover fixedly secured to said end cap member in overlying, covering relation to said one open end, said cover formed from a barrier material and being gas permeable,
- said one open end and a portion of said cover aligned therewith collectively and at least partially defining a path of fluid flow of sterilant gas into communicating relation with said syringe cap within said end cap member.
Dependencies are inferred from the claim text.