Pressure equalizing device and receptacle

Patent metadata

Field	Value
Publication number	US-9822891-B2
Application number	US-201313782439-A
Country	US
Kind code	B2
Filing date	Mar 1, 2013
Priority date	Mar 1, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

Provided is a pressure equalizing device for facilitating drug reconstitution in a closed system. The pressure equalizing device includes a container for attachment to a receptacle, to permit pressure equalization between the container and the receptacle. The container includes a first chamber and a second chamber. The device further includes a vent channel extending between the first chamber and a distal opening of the vent channel. In accordance with the invention, when the receptacle is connected to the pressure equalizing device, the vent channel establishes direct fluid communication between the first chamber and the receptacle. Additionally, a longitudinal axis of the pressure equalizing device is configured to be aligned with or parallel to a longitudinal axis of the receptacle when the pressure equalizing device is attached to the receptacle.

First claim

What is claimed is:

1. A pressure equalizing device comprising:
a container for attachment to a receptacle, to permit pressure equalization between the container and the receptacle, the container comprising a first chamber, a second chamber, and a moveable wall disposed within the container between the first chamber and the second chamber;
a fluid transfer member connected to and extending from the container;
a vent channel defined by the fluid transfer member, the vent channel extending between the first chamber and a distal opening of the vent channel, the second chamber is disposed between the moveable wall and a distal end of the vent channel, the first chamber is sealed from the surrounding atmosphere;
an access channel defined by the fluid transfer member, the access channel spaced from the vent channel; and
a receptacle connector for removeably affixing the pressure equalizing device to the receptacle,
wherein the moveable wall is slideably transitionable from a first position in which the moveable wall is adjacent to a proximal end of the vent channel, to a second position in which the moveable wall is adjacent to the distal end of the vent channel, the moveable wall is slideably transitionable relative to the receptacle connector,
wherein when the receptacle is connected to the pressure equalizing device, the vent channel establishes direct fluid communication between the first chamber and the receptacle, and
wherein a longitudinal axis of the pressure equalizing device is configured to be aligned with or parallel to a longitudinal axis of the receptacle when the pressure equalizing device is attached to the receptacle.

2. The pressure equalizing device of claim 1 , wherein a longitudinal axis of the fluid transfer member is aligned with the longitudinal axis of the pressure equalizing device.

3. The pressure equalizing device of claim 1 , wherein the moveable wall comprises an annular seal disposed circumferentially about the moveable wall for establishing a sealing engagement between the moveable wall and an inner wall of the container.

4. The pressure equalizing device of claim 1 , wherein the container comprises a lubricant coating.

5. The pressure equalizing device of claim 1 , wherein the moveable wall defines a central opening, and the fluid transfer member extends through the central opening such that the moveable wall can slide from the first position to the second position along the fluid transfer member.

6. The pressure equalizing device of claim 5 , wherein the moveable wall further comprises an annular seal disposed about the central opening for sealingly engaging the fluid transfer member.

7. The pressure equalizing device of claim 1 , wherein a cross-sectional view of the container is substantially circular.

8. The pressure equalizing device of claim 1 , wherein the container is at least partly filled with sterilized air.

9. The pressure equalizing device of claim 1 , wherein first chamber of the container is filled with filtered ambient air.

10. The pressure equalizing device of claim 1 , wherein the fluid transfer member defines an access port located at a proximal end of the fluid transfer member, the access channel is in fluid communication with the access port, the access port is configured to connect to a fluid injector.

11. The pressure equalizing device of claim 10 , further comprising a pierceable membrane connected to the access port of the fluid transfer member.

12. The pressure equalizing device of claim 10 , further comprising a connector for attaching the fluid injector to the pressure equalizing device and for establishing fluid connection between the fluid injector and the receptacle through the access channel.

13. An assembly for reconstitution of a substance comprising:
a fluid injector comprising a fluid reservoir and having a longitudinal axis;
a receptacle defining an interior volume and having a longitudinal axis; and
a pressure equalizing device connected between the fluid injector and the receptacle having a longitudinal axis, the pressure equalizing device comprising:
a container for attachment to the receptacle, to permit pressure equalization between the container and the receptacle, the container comprising a first chamber, a second chamber, and a moveable wall disposed within the container between the first chamber and the second chamber;
a fluid transfer member connected to and extending from the container; a vent channel defined by the fluid transfer member, the vent channel extending between the first chamber and a distal opening of the vent channel, the second chamber is disposed between the movable wall and a distal end of the vent channel, the first chamber is sealed from the surrounding atmosphere; an access channel defined by the fluid transfer member, the access channel spaced from the vent channel; a receptacle connector for removably affixing the pressure equalizing device to the receptacle; and
an injector connector for attaching the pressure equalizing device to the fluid injector;

wherein the moveable wall is slideably transitionable from a first position in which the moveable wall is adjacent to a proximal end of the vent channel, to a second position in which the moveable wall is adjacent to the distal end of the vent channel, the moveable wall is slideably transitionable relative to the receptacle connector,
wherein when the receptacle is connected to the pressure equalizing device, the vent channel establishes direct fluid communication between the first chamber and the receptacle,
wherein the longitudinal axis of the pressure equalizing device, the longitudinal axis of the receptacle, and the longitudinal axis of the fluid injector are aligned with or parallel to each other, and
wherein the moveable wall defines a central opening, and wherein the fluid transfer member is inserted through the central opening such that the moveable wall can slide along the fluid transfer member.

14. The assembly of claim 13 , wherein movement of the moveable wall increases or decreases the volume of the first chamber.

15. The assembly of claim 13 , wherein the container of the pressure equalizing device comprises a bellows, and wherein expansion or contraction of the bellows modifies the volume of the first chamber.

Assignees

• Becton Dickinson Co
• Becton Dickinson & Co Ltd

Inventors

• Cederschiöld Alexander

Classifications

• Y10T137/7784

  Responsive to change in rate of fluid flow · CPC title

• A61J1/2096

  Combination of a vial and a syringe for transferring or mixing their contents · CPC title

• A61J1/20 Primary

  Arrangements for transferring {or mixing} fluids, e.g. from vial to syringe · CPC title

• A61J1/2055

  having gripping means · CPC title

• A61J1/2072

  for internal venting · CPC title