Conformable medical dressing with self supporting substrate

• US 9,168,180 B2
• Filed: 06/15/2010
• Issued: 10/27/2015
• Est. Priority Date: 06/16/2009
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.), St. Sauver, Karen M.
• 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:
  US12/815,528
• Publication Number:
  US 20100318052A1
• Time in Patent Office: 1,960 Days
• Field of Search: D24/189, D24/188, 128/888, 128/889, 602 41- 59, 602/2
• US Class Current: 1/1
• 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 method of assembling a medical article, comprising:

(a) providing a backing layer comprising;

a conformable backing having a first major surface and 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 of the backing layer;

a carrier releasably attached to at least a portion of the second major surface of the backing layer;

a second adhesive coated on at least a portion of the second major surface of the backing layer proximate a perimeter of the window; and

a liner releasably adhered to the second adhesive;

(b) providing a self-supporting substrate comprising a first planar surface, and at least one side wall formed 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 a form of flange; and

(c) attaching the self-supporting substrate to the second adhesive on the backing layer to enclose the window in the backing layer.

2. The method of claim 1, wherein the carrier comprises at least one cut line.

3. The method of claim 2, wherein the cut line traverses a length or width of the carrier.

4. The method of claim 3, wherein the cut line is substantially continuous.

5. The method of claim 1, wherein the backing layer is selected from the group consisting of polyurethane film, polyester film, polyether block amide film, and combinations thereof.

6. The method of claim 1, wherein the carrier is selected from the group consisting of polyester film, paper, and combinations thereof.

7. The method of claim 1, wherein the backing layer further comprises a second liner, that is releasably adhered to the first adhesive, opposite the backing layer.

8. The method of claim 1 wherein at least one of the first adhesive and the second adhesive 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.

9. The method of claim 1 wherein at least one of the first adhesive and the second adhesive is a pressure-sensitive adhesive.

10. The method of claim 1 wherein the liner that is releasably adhered to the second adhesive is removed from the second adhesive before the attaching of the self-supporting substrate to the second adhesive.

11. The method of claim 1 wherein the carrier is releasably attached to at least a portion of the second major surface of the backing layer with a heat seal bond.