Medical articles

• US 5,807,295 A
• Filed: 09/27/1996
• Issued: 09/15/1998
• Est. Priority Date: 03/30/1994
• Status: Expired due to Term

• Current Assignee: BSN Medical Incorporated (Essity AB)
• Original Assignee: Smith & Nephew PLC
• Inventors: Hutcheon, Steven David, Pigg, William
• Primary Examiner(s): Apley, Richard J.
• Assistant Examiner(s): LEWIS, KIM M
• Application Number:
  US08/716,305
• Time in Patent Office: 718 Days
• Field of Search: 602/41-63, 602/6-10, 128/888, 128/889, 66/87
• US Class Current: 602/42
• CPC Class Codes: A61F 13/022 having more than one layer with different fluid retention characteristics
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• CPC Class Codes: A61F 13/0246 characterised by the skin-adhering layer
• CPC Class Codes: A61F 13/04 Plaster of Paris bandages; Other stiffening bandages A61F13/06 - A61F13/15 take precedence
• CPC Class Codes: A61F 2013/00234 metallic layer
• CPC Class Codes: A61F 2013/00238 characterised by way of knitting or weaving
• CPC Class Codes: A61F 2013/00621 cast
• CPC Class Codes: A61F 5/01 Orthopaedic devices, e.g. splints, casts or braces
• CPC Class Codes: A61F 5/058 Splints
• CPC Class Codes: D04B 21/14 Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes pile fabrics D04B21/02; non-woven fabrics in general D04H
• CPC Class Codes: D10B 2403/0221 with at least one corrugated ply
• CPC Class Codes: D10B 2403/02421 containing particulate matter, e.g. powder or granulate
• CPC Class Codes: D10B 2509/022 Wound dressings

Abstract

A medical bandaging material, for example, for use as a wound dressing, soft-tissue support bandage, brace or orthopaedic splinting bandage, comprises two superposed layers of, for example, a woven, knitted or non-woven material spaced apart by strands of mono-filamentary or fibrous layers. The interstitial spaces may be filled with a hardenable resin and/or pharmacologically active agent.

Claims

1. A medical bandaging material comprising a first, body facing layer, and a second layer superposed over said first layer in a spaced apart relationship wherein a plurality of strands extend between the first and second layers, wherein said strands maintain said first and second layers in spaced apart relationship such that a space is present between the first and second layers, said strands being resiliently deformable and interconnected into the first and second layers, and wherein a hardenable resin or a pharmacologically active material is contained within the space between the first and second layers.

2. A material as claimed in claim 1 wherein the first and second layers are spaced apart by at least 0.5 mm.

3. A material as claimed in claim 1 wherein said first and second layers are immediately adjacent each other over part of the material.

4. A material as claimed in claim 3 wherein said first and second layers are immediately adjacent each other along at least one peripheral edge of at least one of the said layers.

5. A material as claimed in claim 1 wherein at least one of said first and second layers comprises a sheet of a knitted, woven, or non-woven material.

6. A material as claimed in claim 1 wherein the strands comprise a fibrous material.

7. A material as claimed in claim 1 wherein the strands are knitted into the first and second layers.

8. A material as claimed in claim 1 wherein at least one of said first or second layers or strands is comprised of a thermoplastic material.

9. A material as claimed in claim 1 wherein the materials comprising the first and second layers are flexible.

10. A material as claimed in claim 1 wherein a third layer of material overlies said second layer.

11. A material as claimed in claim 10 wherein said third layer is moisture vapor permeable.

12. A material as claimed in claim 10 wherein said third layer extends beyond the area of the second layer.

13. A material as claimed in claim 1 wherein said third layer comprises means for attachment to a body.

14. A material as claimed in claim 13 wherein said attachment means comprises an adhesive layer.

15. A material as claimed in claim 1 wherein a further layer underlies said first layer.

16. A material as claimed in claim 15 wherein said further layer comprises a net.

17. A material as claimed in claim 1 wherein said hardenable resin comprises a water-hardenable polyisocyanate functional resin, a water hardenable siloxane functional resin, a light activated vinyl ether resin or a thermoplastic resin.

18. A material as claimed in claim 1 wherein a pharmacologically active agent in controlled release form is contained in said space.

19. A wound dressing comprising a bandaging material as claimed in claim 1.

20. A soft tissue support bandage comprising a bandaging material as claimed in claim 1.

21. An orthopaedic splinting bandage comprising a bandaging material as claimed in claim 1.

22. An orthopaedic brace comprising a bandaging material as claimed in claim 1.