Adhesive frame bandage

• US 5,088,483 A
• Filed: 03/20/1991
• Issued: 02/18/1992
• Est. Priority Date: 11/04/1988
• Status: Expired due to Term

• Current Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Heinecke, Steven B.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): PREBILIC, PAUL B
• Application Number:
  US07/672,777
• Time in Patent Office: 335 Days
• Field of Search: 128/155, 128/156, 128/849, 128/850, 128/851, 128/852, 604/304, 604/307, 604/366, 604/389, 206/440, 206/441, 206/447
• US Class Current: 602/46
• CPC Class Codes: A61F 13/023 wound covering film layers without a fluid retention layer

Abstract

An adhesive composite is provided which consists of a conformable backing, a pressure-sensitive adhesive which is coated on at least a portion of the bottom surface of the backing, a permanent adhesive reinforcement which acts as reinforcing means for the backing, coated on the bottom surface of the film and a liner which is releasably applied to the adhesive coated surface of the backing. A delivery means may also be provided to allow delivery of the system without touching the adhesive. The permanent adhesive reinforcement is applied to the backing in an amount which is sufficient to provide some reinforcement to the thin film backing so that the composite wall not tend to fold back on itself or wrinkle under ordinary use. Preferably this permanent adhesive reinforcement is applied to the periphery of the backing.

Claims

1. An adhesive composite comprising:

a) a conformable backing having top and bottom faces;

b) a backing adhesive that is a pressure-sensitive adhesive coated on at least a portion of the bottom face of the backing;

c) a reinforcing amount of a permanent adhesive reinforcement that is an adhesive or adhesive laminate applied to the bottom face of the backing and that is inseparable from the backing; and

d) a liner releasably adhered to he exposed adhesive on the backing.

2. The composite according to claim 1 wherein the backing adhesive is located between the backing and the permanent adhesive reinforcement so that the permanent adhesive reinforcement is exposed after removal of the liner and will adhere directly to the surface after application.

3. The composite according to claim 1 wherein the permanent adhesive reinforcement is applied to the periphery of the backing.

4. The composite according to claim 1 wherein said backing has two opposing end edges held by a user during application of the backing to the surface and two opposing side edges that bridge the end edges, wherein the permanent adhesive reinforcement is applied to a border region of the two opposing side edges.

5. The composite according to claim 1 wherein the permanent adhesive reinforcement is a laminate consisting of a layer of a film material and a layer of adhesive.

6. The composite according to claim 1 wherein the permanent adhesive reinforcement is a laminate consisting of a layer of fabric material and a layer of adhesive.

7. The composite according to claim 6 wherein the fabric is a nonwoven web.

8. The composite according to claim 6 wherein the fabric is woven.

9. The composite according to claim 1 wherein the permanent adhesive reinforcement is a fiber filled adhesive.

10. The composite according to claim 1 having delivery means comprising two parallel die cuts in the liner forming a central portion and two side portions that may be removed independently of each other.

11. The composite according to claim 1 having delivery means comprising the attachment of optionally removable tabs to opposing edges of the top face of the backing.

12. The composite according to claim 1 wherein the permanent adhesive reinforcement is less than about 500 microns thick.

13. The composite according to claim 1 wherein the permanent adhesive reinforcement is less than about 250 microns thick.

14. The composite according to claim 1 wherein the permanent adhesive reinforcement is less than about 125 microns thick.

15. The composite according to claim 2 wherein the permanent adhesive reinforcement possesses an adhesion to skin which is more than about 1.25 times the adhesion to skin of the backing adhesive.

16. The composite according to claim 2 wherein the permanent adhesive reinforcement possesses an adhesion to skin which is more than about 1.50 times the adhesion to skin of the backing adhesive.

17. The composite according to claim 1 wherein the backing, backing adhesive and permanent adhesive reinforcement together have an F₁₀ value of less than about 7300 grams force in any direction.

18. The composite according to claim 1 wherein the backing, backing adhesive and permanent adhesive reinforcement together have an F₁₀ value of less than about 600 grams in any direction.

19. The composite according to claim 1 wherein the backing, backing adhesive and permanent adhesive reinforcement together have a Handle-O-Meter reading of no less than about 1 gram-force.

20. The composite according to claim 1 wherein the backing consists of polyurethane or polyester.

21. The composite according to claim 1 wherein the composite is a dressing that transmits moisture vapor at a rate of at least 300 g/m² /24 hrs/37°

C./100-10% RH.

22. The composite according to claim 20 wherein the backing is transparent.

23. The composite according to claim 1 wherein the backing has an F₁₀ value of no greater than about 454 grams force.