Closed System Stress Resistant Membrane

Patent metadata

Field	Value
Publication number	US-2018193227-A1
Application number	US-201815868123-A
Country	US
Kind code	A1
Filing date	Jan 11, 2018
Priority date	Jan 12, 2017
Publication date	Jul 12, 2018
Grant date	—

Abstract

A membrane for use in connection with a closed system transfer device has a body with a proximal portion opposite a distal portion along a central axis and a skirt extending radially outward from the distal end such that a lip is formed at a transition between the proximal portion and the distal portion. The membrane further has at least one well recessed in a proximal direction from a distal end of the distal portion, thereby forming a channel within the distal portion having an open first end, a closed bottom end, and a pair of sidewalls extending between the first end and the second end. At least one slit extends through at least a portion of the body in a direction of a plane aligned along or parallel to the central axis.

First claim

What is claimed is:

1 . A membrane for use in connection with a closed system transfer device, the membrane comprising:
a body having a proximal portion opposite a distal portion along a central axis; a skirt extending radially outward from the distal portion such that a lip is formed at a transition between the proximal portion and the distal portion; at least one well recessed in the distal portion and extending from a distal end of the distal portion in a proximal direction, thereby forming a channel within the distal portion, the channel having an open first end, a closed bottom end, and a pair of sidewalls extending between the first end and the second end; and at least one slit extending through at least a portion of the body in a direction of a plane aligned along or parallel to the central axis.

2 . The membrane of claim 1 , wherein the at least one well is continuous in a circumferential direction about the central axis.

3 . The membrane of claim 1 , wherein the at least one well is discontinuous in a circumferential direction about the central axis.

4 . The membrane of claim 1 , wherein the at least one well has an annular shape.

5 . The membrane of claim 1 , wherein the at least one well comprises a plurality of wells with each well positioned at a different radius away from the central axis.

6 . The membrane of claim 1 , wherein the at least one well comprises a plurality of wells positioned at a same radius away from the central axis and separated from each other by at least one connecting rib.

7 . The membrane of claim 1 , wherein the at least one slit extends through at least a portion of the distal portion of the body in a direction along the central axis.

8 . The membrane of claim 1 , wherein the at least one slit is configured to be opened by a cannula during penetration of the cannula through the membrane and to close upon withdrawal of the cannula from the membrane.

9 . The membrane of claim 1 , wherein the at least one slit is positioned on a raised area that protrudes distally from the distal portion of the distal end.

10 . The membrane of claim 9 , wherein the raised area is arcuately shaped with an apex at the central axis of the membrane.

11 . The membrane of claim 1 , wherein the at least one slit is a pair of slits intersecting each other at a midpoint of each slit.

12 . The membrane of claim 1 , wherein the at least one slit is three slits connected to one another at one of their end points.

13 . The membrane of claim 12 , wherein the slits intersect at a perpendicular angle.

14 . The membrane of claim 1 , wherein the slits are arranged such that the cannula penetrates the slits through an intersection point of the slits.

15 . The membrane of claim 1 , further comprising a retention ring protruding in a distal direction from the distal portion of the distal end.

16 . The membrane of claim 15 , wherein the retention ring is continuous in a circumferential direction about the central axis.

17 . The membrane of claim 15 , wherein the retention ring is discontinuous in a circumferential direction about the central axis.

18 . The membrane of claim 15 , wherein the retention ring has an annular shape.

19 . The membrane of claim 1 , wherein the proximal portion and the distal portion are monolithically formed together.

20 . The membrane of claim 1 , wherein the body is symmetrical about the central axis.

21 . The membrane of claim 1 , wherein the lip is substantially perpendicular to the central axis.

22 . The membrane of claim 1 , wherein a proximal end of the proximal portion has a convex surface.

23 . The membrane of claim 1 , wherein a proximal end of the proximal portion has a planar surface.

24 . The membrane of claim 1 , wherein a distal end of the distal portion has a convex surface.

25 . The membrane of claim 1 , wherein a distal end of the distal portion has a planar surface.

26 . The membrane of claim 1 , wherein an outer perimeter of the proximal portion has a radiused edge.

Assignees

• Becton Dickinson & Co Ltd

Inventors

• Marici Paul Paia
• Isaacson Shawn Ray
• Farinella Andrew C
• Gatesman Mitchell Evan

Classifications

• A61J1/1406 Primary

  Septums, pierceable membranes · CPC title

• A61J1/2096

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

• A61J1/2048

  Connecting means · CPC title

• A61M5/1413

  Modular systems comprising interconnecting elements · CPC title

• A61J1/2044 Primary

  having slits · CPC title