ACCESS AND VAPOR CONTAINMENT SYSTEM FOR A DRUG VIAL AND METHOD OF MAKING AND USING SAME

• US 20190321262A1
• Filed: 04/22/2019
• Published: 10/24/2019
• Est. Priority Date: 04/23/2018
• Status: Active Grant

• Current Assignee: Hospira Incorporated (Pfizer Inc.)
• Original Assignee: Hospira Incorporated (Pfizer Inc.)
• Inventors: CHUDEK, Christopher William, FULGHUM, III, Jesse Carl, TREVES, Amichai, RUSH, Benjamin L., ZIGNEGO, Jay Colton, HENSON, Robert William, BROWKA, Edward Paul, FOSHEE, David Lee, MOSLER, Theodore J.
• Granted Patent: US 11,224,555 B2
• Time in Patent Office: Days
• CPC Class Codes: A61J 1/065 Rigid ampoules, e.g. glass ampoules
• CPC Class Codes: A61J 1/1406 Septums, pierceable membranes
• CPC Class Codes: A61J 1/1412 Containers with closing means, e.g. caps
• CPC Class Codes: A61J 1/1418 Threaded type
• CPC Class Codes: A61J 1/1425 Snap-fit type
• CPC Class Codes: A61J 1/16 Holders for containers
• CPC Class Codes: A61J 1/2006 Piercing means
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2037 having valve means
• CPC Class Codes: A61J 1/2048 Connecting means
• CPC Class Codes: A61J 1/2051 having tap means, e.g. tap means activated by sliding
• CPC Class Codes: A61J 1/2065 having aligning and guiding means
• CPC Class Codes: A61J 1/2072 for internal venting
• CPC Class Codes: A61J 1/2082 for gas filtration
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: G21F 5/018 Syringe shields or holders syringe shielding for applying radioactive material to the body A61M5/1785
• CPC Class Codes: G21F 5/06 Details of, or accessories to, the containers

Abstract

A safety vial system has a vial adapter subsystem irreversibly mountable to the top of a vial containing a hazardous medicament and a vial base subsystem sealingly engaging a lower portion of the vial adapter subsystem and telescopically movable therein from a first position providing a path for gas sterilization around the vial to a second position wherein the path is closed to form a sterilized expandable, neutral pressure bellows chamber around and below the vial. The device has a removable top cap, a pierceable barrier film, a normally closed needleless valve in fluid communication with a dual lumen spike initially disposed above the film and a frangible product integrity ring holding the activation housing in place for sealed telescopic movement on a main body that surrounds the vial. The user pulls the product integrity ring and removes it, and then pushes the activation housing axially downward until it clicks to lock the device in the activated position wherein both lumens of the spike are in communication with the inside of the vial. The user removes the top cap on the activation housing assembly, and then uses a needleless syringe with an adapter thereon to add diluent and mixes if needed and withdraw drug from the vial via the valve.

Claims

1. A safety vial system for enclosing a drug vial filled with a hazardous drug comprising:

a vial adapter subsystem comprising a main body assembly, an activation housing assembly irreversibly coupled and hermetically sealed to the main body assembly and yet movable telescopically and axially in a distal direction with respect to the main body assembly between a first proximally raised position and a second distally extended lowered position, and a product integrity ring releasably coupling the vial adapter subsystem with the main body assembly to retain the activation housing assembly in the first proximally raised position until forcibly released;

a vial base subsystem including a bellows base assembly comprising a bellows base and an expandable bellows comprising a flexible bellows film having an upper surface and a lower surface and being sealingly attached to the bellows base to define an expandable bellows chamber between the upper surface of the bellows film and the bellows base; and

a vial having a central longitudinal axis, a bottom wall, a side wall joined with the bottom wall and extending around the central longitudinal axis to form an upper portion that has a top opening sealed with a stopper to define a internal reservoir for containing a medicament, the vial having an external surface and being disposed between the vial adapter subsystem and the vial base subsystem with the bottom wall directed toward the vial base subsystem;

wherein the vial adapter subsystem and the vial base subsystem are generally tubular and arranged along a common central longitudinal axis with the central longitudinal axis of the vial and the vial is supported by at least one of the vial adapter subsystem and the vial base subsystem;

wherein the vial adapter subsystem and the vial base subsystem are movably telescopically connected to each other in a first position wherein an open pathway is provided for a sterilization gas to sterilize the external surface of the vial while the vial is supported between the vial adapter subsystem and the vial base subsystem; and

wherein the vial base subsystem and the vial adapter subsystem are telescopically movable toward each other and into a second position wherein the pathway is hermetically sealed closed after the external surface of the vial is sterilized with the sterilization gas.

2. The safety vial system of claim 1, wherein the vial is prefilled with a medicament that is a hazardous drug selected from a group consisting of Carboplatin, Docetaxel, Paclitaxel, Irinotecan, Gemcitabine, Oxaliplatin, Methotrexate, Bortezomib, Cyclophosphamide, and Pemetrexed.

3. The safety vial system of claim 1, wherein the activation housing assembly comprises a tubular activation housing having a top opening, a bottom opening, an interior surface and an exterior surface, the activation housing assembly further comprising a dual lumen vial access member mounted in the activation housing with a first lumen for medicament and a second lumen for air, a normally closed needleless valve connected to the vial access member and fluidly connected to the first lumen to define a medicament fluid passage, and a cap detachably mounted in sealing relation to one of the top opening of the activation housing and the needleless valve for maintaining sterility of an outlet port of the needleless valve until the cap is removed.

4. The safety vial system of claim 3, wherein the activation housing assembly comprises a bulkhead member mounted inside the activation housing for supporting the vial access member and the needleless valve.

5. The safety vial system of claim 4, comprising a filter operatively mounted in covering relation to a passage through the bulkhead member fluidly connected to the air lumen of the dual lumen vial access member and the bellows chamber.

6. The safety vial system of claim 5, wherein the filter comprises a first filter element that is hydrophobic and oleophobic and a second filter element that is hydrophilic, the first filter element being mounted so as to be directed toward the air lumen for retaining fluids in the vial and the second filter element being directed to toward the bellows chamber for allowing displaced air volume from the vial to reach the expandable bellows chamber.

7. The safety vial system of claim 4, wherein the bulkhead member is a separate component from the activation housing, the vial access member and the needleless valve, and wherein the bulkhead supports a filter operatively covering a passage fluidly connected to the air lumen of the vial access member, and wherein a check valve is mounted in the bulkhead member for adding ambient air through the filter from outside the safety vial system as necessary to maintain a neutral pressure environment in the safety vial system.

8. The safety vial system of claim 1, wherein the main body assembly comprises a tubular main body having a top opening, a bottom opening, an interior surface and an exterior surface, and a vial retention ring mounted within the interior surface of the main body for capturing an upper portion of the vial.

9. The safety vial system of claim 8, wherein the main body has a shoulder extending radially inward from the interior surface, the shoulder being spaced axially and proximally above the vial retention ring and adapted to limit the upward proximal axial insertion of the upper portion of the vial into the main body and accurately position the vial axially within the safety vial system.

10. The safety vial system of claim 8, wherein the vial retention ring comprises annular rim and a plurality of circumferentially spaced J-shaped clips extending radially inwardly and upwardly from the annular rim, the J-shaped clips being deflectable about a pivot axis that is on an outer elbow side of the J-shaped clips that is adjacent to the vial such that the clips pivot outwardly and upwardly to receive the upper portion of the vial when the vial is insert upwardly into the main body through the bottom opening of the main body, and the clips spring back downwardly and radially inward to supportingly rest against one of an underside of a hold down ring securing the stopper in the top opening of the vial and the exterior surface of the outer wall of the vial at a narrowed neck of the vial located below the hold down ring.

11. The safety vial system of claim 1, wherein the main body comprises a lower portion, an upper portion, and an intermediate portion disposed between the upper portion and the lower portion, and a barrier film is sealingly attached in covering relation across a top opening of the intermediate section to separate the safety vial system such that the vial adapter subsystem can be dual sterilized by irradiating the vial adapter subsystem, inserting a vial pre-filled with a medicament into the vial adapter subsystem, mounting the vial base subsystem to the vial adapter subsystem in the first position, placing the assembled safety vial system in its first position in a chamber for gas sterilization, closing the chamber for gas sterilization, gas sterilizing external surfaces of the safety vial system including external surfaces of the vial and stopper and within the interior surface of the main body below the barrier film, moving the vial adapter subsystem and vial base subsystem from the first position to the second, sealed position while the safety vial system is in the gas sterilization chamber by applying an axial force with one of a moving floor and collapsing shelf within the gas sterilization chamber.

12. The safety vial system of claim 3, wherein the upper portion of the main body includes at least one one-way manufacturing snap detent for engaging at least one of a plurality of mating manufacturing snaps formed on opposing sides of the activation housing on the exterior surface thereof.

13. The safety vial system of claim 3, wherein the exterior surface of the activation housing includes at least one one-way activation snap located axially spaced distally below the plurality of manufacturing snaps.

14. The safety vial system of claim 1, comprising a bottom cap mounted to one of the bellows base and the main body and extending therebelow to cover the bellows film.

15. The safety vial system of claim 14, wherein the bottom cap has an interior cup portion defining a cavity for receiving the flexible bellows film as it expands downwardly and a tubular outer sleeve portion attached to the interior cup portion, the tubular outer sleeve portion having a lower end and an upper end with a top opening therein;

the bellows base being carried by the bottom cap in the cavity;

the tubular outer sleeve portion of the bottom cap having at least one snap detent formed on an interior surface of the sleeve portion adjacent the top opening of the sleeve portion for engaging one of at least a pair of axially spaced mating snap detents adjacent the lower end of the main body;

the bottom cap being movably axially in a proximal direction from the first position, which is associated with a lower of the at least a pair of axially spaced mating snap detents on the main body, to the second position, which is associated with an upper of the at least a pair of axially spaced mating snap detents.

16. The safety vial system of claim 15, wherein the at least one snap detent on the interior surface of the tubular outer sleeve portion of the cap is one of an unbroken annular rib and a circumferentially broken annular rib, and the at least a pair of axially spaced mating snap detents on the main body are annular ring grooves for receiving the rib of the bottom cap.

17. The safety vial system of claim 15, wherein the lower end of the tubular outer sleeve portion of the bottom cap has a raised archway defining a passageway for air to enter under the bottom cap.

18. The safety vial system of claim 1, wherein the safety vial system comprises a check valve in one of the vial adapter subsystem and the vial base subsystem for adding ambient air from outside the safety vial system as necessary to maintain a neutral pressure environment in the safety vial system.

19. The safety vial system of claim 18, wherein the check valve for adding ambient air to the safety vial system is in the vial base subsystem and comprises an umbrella valve mounted in the bellows base for selectively opening and sealing an ambient air passage that extends through the bellows base.

20. The safety vial system of claim 19, wherein the ambient air passage extends through one of at least one hole in the bellows base and at least one hole in the bottom cap to reach an environment external to the safety vial system.

21. The safety vial system of claim 18, wherein the bottom cap has an outer sleeve portion and the ambient air passage extends through a hole in a side wall of the outer sleeve portion of the bottom cap.

22. The safety vial system of claim 1, comprising a seal operatively interposed between an outer surface of the bellows base and an inner surface of the main body.

23. The safety vial system of claim 22, wherein the seal operatively interposed between the outer surface of the bellows base and the inner surface of the main body comprises an O-ring disposed in a groove formed in the outer surface of the bellows base.

24. The safety vial system of claim 1, wherein the vial activation housing, product integrity ring, main body, and vial base subsystem all share a common central longitudinal axis with the vial and together define for a generally cylindrical outer profile after manufacturing and during use.

25. The safety vial system of claim 1, wherein the vial activation housing, product integrity ring, main body, and vial base subsystem all share a common central longitudinal axis with the vial and together define for the safety vial system a generally cylindrical outer profile with respective outer diameters related to each other as follows:

the vial base subsystem has an outer diameter that is larger to approximately the same size as the main body;

the main body has an outer diameter that is larger to approximately the same size as the activation housing; and

the product integrity ring has an outer diameter that is less than the outer diameters of the main body and the vial base subsystem.

26. The safety vial system of claim 1, wherein the vial activation housing, product integrity ring, main body, and vial base subsystem all share a common central longitudinal axis with the vial and together define for the safety vial system a cylindrical outer profile and are sized and shaped such that the safety vial system has a center of gravity located within the safety vial system, within the profile of the safety vial system, and in the lower ½

of the safety vial system whereby the safety vial system is resistant to tipping over during conveyor transport, sterilization, and in use when the vial base subsystem is placed on a flat, level surface.

27. The safety vial system of claim 1, wherein the main body has an opening in an upper portion thereof that is hermetically sealed by a barrier film extending across the opening, the barrier film separating the vial adapter subsystem into an upper sealed portion that is sterilized by irradiation and a lower unsealed portion that is sterilized by exposure to a gas sterilant.

28. The safety vial system of claim 27, wherein the gas sterilant is selected from a group of gas sterilants composed of NO₂, Vaporized Hydrogen Peroxide (VHP), Ethylene Oxide (ETO), Ozone, and Plasma.

29. The safety vial system of claim 1, wherein the pathway is a substantially open pathway.

30. The safety vial system of claim 1, wherein the pathway is a tortuous pathway defined by multiple turns along the bellows base due to a series of annular grooves and annular ribs formed between the annular grooves, the annular ribs being broken at opposing sides.

31. A method of making a safety vial system, comprising the steps of:

providing a vial filled with a drug and having a central longitudinal axis;

providing a vial adapter subsystem;

providing a vial base subsystem;

irreversibly inserting the vial into a vial retention ring in the vial adapter;

aligning the vial adapter subsystem holding the vial with the vial base subsystem so the vial base subsystem and vial adapter subsystem share a common central longitudinal axis with the vial;

coupling the vial adapter subsystem and the vial base subsystem together in a first position relative to each other wherein a pathway is defined between the subsystems for a gas sterilant to reach external surfaces of the vial;

placing the safety vial system in a gas sterilization chamber;

sterilizing the safety vial system using a gas sterilant in a sealed gas sterilization chamber and, while the safety vial system is still in the sealed gas sterilization chamber and using a moving member in the gas sterilization chamber, telescopically moving the subsystems of the safety vial system from the first position to a second position where the pathway is sealed closed;

opening the sealed gas sterilization chamber; and

moving the sterilized unit out of the sealed gas sterilization chamber.

32. A kit for storage and fluid transfer of a hazardous drug comprising:

a safety vial system fully enclosing an elongated sealed container having a central longitudinal axis, an upper portion, a bottom wall and a side wall together defining an interior space containing a drug to be transferred, the safety vial system comprising;

a vial adapter subsystem covering the upper portion of the container and comprising;

a main body assembly irremovably mounted to and surrounding at least part of the upper portion of the container, the main body assembly including a tubular main body having a wall defining an interior space radially surrounding at least a part of the upper portion of the container;

an activation housing assembly irreversibly coupled and hermetically sealed to the main body assembly and yet axially telescopically movable in a distal direction with respect to the main body assembly between a first proximally raised position and a second fully distally extended lowered position, the activation housing assembly comprising;

a tubular activation housing;

a hollow vial access member mounted in the activation housing and having a pointed distal end for accessing the interior space of the sealed container to establish fluid communication therewith, a proximal end, and fluid passage extending from the pointed distal end to the proximal end;

a normally closed needleless valve mounted in the activation housing connected to the vial access member and in fluid communication with the fluid passage of the vial access member,

a barrier film mounted in sealing covering relation across an upper opening of the tubular main body to isolate the interior space of the tubular main body below the barrier film from the activation housing assembly in the first position and being punctured by the vial access member as the activation housing assembly is moved to its second position, and

a product integrity ring releasably coupling the activation housing with the main body assembly to retain the activation housing assembly in the first proximal raised position until the product integrity ring is forcibly released; and

a sealing member operatively interposed between the tubular activation housing and the main body assembly for maintaining a hermetic movable radial seal therebetween to provide smooth relative telescopic movement;

a vial base subsystem extending distally from the bottom wall of the container, the vial base subsystem being joined to and selectively movable axially with respect to the vial adapter subsystem from a first position wherein a pathway for a sterilant is defined between the vial adapter subsystem and the vial base subsystem to a second position wherein the pathway is sealed closed, the vial base subsystem supporting and enclosing an expandable bellows chamber located at least partially below the bottom wall of the container; and

a needleless syringe for fluid tightly coupling with the needleless valve and withdrawing the drug from the container within the safety vial system;

wherein the safety vial system is configured to expand and contract the expandable bellows chamber as needed to maintain a neutral pressure environment in the safety vial system and surrounding the container such that leaks of the drug in any form, including liquid, gas and mixtures thereof, are captured during withdrawal from the container and transfer to the needleless syringe.

33. The kit of claim 32, wherein the vial base subsystem comprises a bellows base, a bellows film having a freely movable central flexible portion and an outer brim portion with a periphery that is sealingly connected to a lower end of the bellows base to define the expandable bellows chamber between the bellows base and the bellows film, and a rigid bottom cap mounted to one of the main body and bellows base for protectively encasing the bellows base and the bellows film and limiting the movement of the bellows film;

wherein the bellows base is movably coupled to the main body or the vial adapter subsystem and an annular seal is operatively interposed between the bellows base and main body of the vial access subsystem.