Conformable medical dressing with self supporting substrate

• US 10,369,058 B2
• Filed: 10/19/2015
• Issued: 08/06/2019
• Est. Priority Date: 06/16/2009
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Ha, Phong VanThanh, Jacobson, Richard L., Peterson, Donald G., St. Sauver, Karen M.
• Primary Examiner(s): Lewis, Kim M
• Application Number:
  US14/886,145
• Publication Number:
  US 20160038345A1
• Time in Patent Office: 1,387 Days
• Field of Search: D24189, 12888, 12889, 12189
• CPC Class Codes: A61F 13/00059 provided with visual effects, e.g. printed or colored
• CPC Class Codes: A61F 13/00063 comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00
• CPC Class Codes: A61F 13/0008 having means for facilitating the removal of the packaging and release liner
• CPC Class Codes: A61F 13/02 Adhesive bandages or dressings
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• CPC Class Codes: A61F 13/0233 characterised by the oclusive layer skin contacting layer
• CPC Class Codes: A61F 13/0236 characterised by the application/handling support layer
• CPC Class Codes: A61F 13/025 having a special distribution arrangement of the adhesive
• CPC Class Codes: A61F 13/0289 manufacturing of adhesive dressings
• CPC Class Codes: A61F 2013/00165 not touching the wound
• CPC Class Codes: A61F 2013/00387 skin protection
• CPC Class Codes: A61F 2013/00412 for use with needles, tubes or catheters
• CPC Class Codes: A61F 2013/00553 with detachable parts
• CPC Class Codes: A61F 2013/00578 conformable; soft or flexible, e.g. elastomeric
• CPC Class Codes: A61F 2013/00608 with reinforcing layers
• CPC Class Codes: A61F 2013/008 easy removing of the protection sheet
• CPC Class Codes: A61F 2013/00825 protection of wound surround
• CPC Class Codes: A61F 2013/00846 with transparent or translucent part

Abstract

A medical dressing comprising a backing layer and a self-supporting substrate. The backing layers form a perimeter around the self supporting substrate and hold the self supporting substrate in place on a wound.

Claims

1. A medical dressing comprising:

a backing layer with a first major surface, a second major surface, and an opening through the backing layer to form a window,

a first adhesive coated on at least a portion of the first major surface,

a self-supporting substrate comprising

a first planar surface comprising a corrugated pattern on at least a portion of the first planar surface,

at least one side wall at an angle between zero to one hundred eighty degrees to the first planar surface, and

a second planar surface connected to the at least one side wall in the form of a flange,

a second adhesive adhered to the flange,

wherein the sidewall has a first periphery proximate the first planar surface and a second periphery proximate the second planar surface,

wherein the second planar surface is connected to the at least one side wall continuously along the entire second periphery,

wherein the second adhesive is attached to the backing layer to enclose the window on at least one of the first major surface or second major surface of the backing layer,

wherein the medical dressing forms a hermetically sealed environment over a wound or other body site.

2. The medical dressing of claim 1, wherein the self supporting substrate is sealed to the backing layer and forms a cavity.

3. The medical dressing of claim 1, wherein the profile of the dressing is at least 5 millimeters.

4. The medical dressing of claim 1, wherein the profile of the dressing is no more than 50 millimeters.

5. The medical dressing of claim 1, further comprising a barrier element and/or a wound packing material.

6. The medical dressing of claim 1, wherein the window is proximate the center of the backing layer.

7. The medical dressing of claim 1, wherein the self-supporting substrate comprises a flexible material.

8. The medical dressing of claim 1, wherein the self-supporting substrate comprises a thermoplastic material, wherein the thermoplastic material is polyethylene.

9. The medical dressing of claim 1, further comprising an absorbent material.

10. The medical dressing of claim 1 wherein the adhesive layer includes at least one medicament comprising an anti-infective agent, an antimicrobial, polyhexamethylene biguanide, chlorhexidine, silver, iodine, iodophor, benzalkonium chloride, hydrogen peroxide, antibiotics, debridement agents, analgesics, healing factors, nitric oxide releasing materials, matrix metalloproteinase inhibitors, vitamins, growth factors, and nutrients.

11. The medical dressing of claim 1, further comprising a wound packing layer.

12. The medical dressing of claim 11, wherein the wound packing layer comprises a foam or resilient nonwoven packing.

13. The medical dressing of claim 1, wherein the self supporting substrate comprises a valve.

14. The medical dressing of claim 1, wherein the corrugated portion comprises alternating ridges and valleys in the planar surface of the self supporting substrate.

15. The medical dressing of claim 1, wherein the self supporting substrate comprises a valve.