Barrier system to reduce the rates of infections

Patent metadata

Field	Value
Publication number	US-12161532-B2
Application number	US-202016950470-A
Country	US
Kind code	B2
Filing date	Nov 17, 2020
Priority date	Dec 12, 2007
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

A barrier system is provided for use in reducing infections associated with post-operative surgical incision and/or a percutaneous medical device, such as a catheter, that is disposed within the surgical incision. Such a barrier system may include: a barrier device having a skin-contacting surface and a catheter-receiving surface; and an adhesive composition configured for adhering to skin, the barrier device, and/or the catheter so as to form a barrier at or adjacent to an incision in the skin where the catheter is percutaneously inserted through the skin. A tensioning anchor and associated system of two or more tensioning anchors is provided for post-operative wound closure. A method for applying and removing the barrier device and tensioning anchors is also provided.

First claim

The invention claimed is:

1. A wound barrier device, comprising:
a skin contacting surface; and
a bladder connected to the skin contacting surface, the bladder having an unexpanded state and an expanded state, wherein in the expanded state, an expanded bond between the bladder and an adhesive composition bonded to the bladder is weaker than an unexpanded bond between the bladder and the adhesive composition.

2. The wound barrier device of claim 1 , further comprising a port for introduction of a fluid into the bladder.

3. The wound barrier device of claim 2 , wherein the port includes a luer lock connection.

4. The wound barrier device of claim 1 , wherein the bladder is connected to a perimeter edge of the skin contacting surface.

5. The wound barrier device of claim 1 , wherein the bladder is made from at least one of plastics, rubbers, nitrile, polyurethanes, polyethylenes, ethylene propylene diene monomer (EPDM), vinyl, silicone elastomers, or neoprene.

6. The wound barrier device of claim 1 , wherein an expanded circumference of the bladder in the expanded state is greater than an unexpanded circumference of the bladder in the unexpanded state.

7. The wound barrier device of claim 1 , wherein, in the expanded state, an expanded surface area of the bladder in contact with the adhesive composition is greater than an unexpanded surface area of the bladder in contact with the adhesive composition in the unexpanded state.

8. The wound barrier device of claim 1 , wherein, in the expanded state, the unexpanded bond between the bladder and the adhesive composition is broken.

9. The wound barrier device of claim 1 , wherein the bladder includes a first portion and a second portion, the second portion being bonded to the adhesive composition, and wherein the second portion expands more than the first portion.

10. The wound barrier device of claim 1 , wherein the bladder includes a first portion and a second portion, the second portion being bonded to the adhesive composition, and wherein a second surface area of the second portion is greater than a first surface area of the first portion.

11. The wound barrier device of claim 1 , wherein the bladder includes multiple bladders connected to the skin contacting surface.

12. The wound barrier device of claim 1 , wherein the bladder extends across an entirety of the skin contacting surface.

13. A method for applying a barrier device to a skin of a user, comprising:
attaching the barrier device to said skin of said user with an adhesive composition, the adhesive composition bonded to a bladder connected to the barrier device, wherein the bladder is in an unexpanded state when the barrier device is secured to said skin of said user;
expanding the bladder from the unexpanded state to an expanded state, wherein expanding the bladder weakens a bond between the adhesive composition and the bladder; and
removing the barrier device from said skin of said user.

14. The method of claim 13 , wherein expanding the bladder from the unexpanded state to the expanded state includes injecting a fluid into the bladder.

15. The method of claim 14 , wherein injecting the fluid into the bladder includes piercing the bladder with a needle to inject the fluid.

16. The method of claim 13 , further comprising applying the adhesive composition to the bladder in the unexpanded state before attaching the barrier device to said skin of said user.

17. The method of claim 13 , wherein expanding the bladder breaks the bond between the adhesive composition and the bladder.

18. The method of claim 13 , wherein, when expanding the bladder, the bladder expands a greater amount than the adhesive composition.

19. A wound barrier system, comprising:
a skin contacting surface; and
an inflatable bladder connected to the skin contacting surface; and
an adhesive composition connected to the bladder, wherein, the adhesive composition is configured to bond to a surface and the inflatable bladder such that, after bonding, the inflatable bladder is more expandable than the adhesive composition such that when the bladder is in an expanded state, a bond between the bladder and the adhesive composition is weakened.

20. The wound barrier system of claim 19 , further comprising a fluid injection port to inject a fluid into the inflatable bladder.

Assignees

• Univ Kansas

Inventors

• Waller Stephen Cilfford
• Bhavsar Dhaval

Classifications

• A61M2025/0266

  using pads, patches, tapes or the like · CPC title

• A61M5/158

  Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} · CPC title

• A61M5/1418

  Clips, separators or the like for supporting tubes or leads · CPC title

• A61F2013/00272

  protection of the body or articulation · CPC title

• A61M2039/0297

  at least part of it being inflatable, e.g. for anchoring, sealing or removing · CPC title