Support material for medical purposes

• US 6,074,965 A
• Filed: 08/19/1996
• Issued: 06/13/2000
• Est. Priority Date: 08/25/1995
• Status: Expired due to Fees

• Current Assignee: Beiersdorf AG (Maxingvest AG)
• Original Assignee: Beiersdorf AG (Maxingvest AG)
• Inventors: Himmelsbach, Peter, Bodenschatz, Stefan
• Primary Examiner(s): Cole, Elizabeth M.
• Application Number:
  US08/699,273
• Time in Patent Office: 1,394 Days
• Field of Search: 428/902, 428/304.4, 428/295.4, 428/297.4, 428/297.1, 428/317.9, 442/269, 442/304, 442/305, 442/370, 604/304, 602/41, 602/44, 602/45, 602/46, 602/76-77
• US Class Current: 442/269
• CPC Class Codes: A61F 13/01038 Flexibility, stretchability or elasticity
• CPC Class Codes: A61F 13/023 wound covering film layers without a fluid retention layer
• CPC Class Codes: A61F 13/0269 Tapes for dressing attachment for stoma bags A61F5/443; for nappies or sanitary towels A61F13/58; wound closure tapes A61B17/085; for surgical drapes A61B46/00; attaching catheters A61M25/02
• CPC Class Codes: A61F 2013/00106 emergency bandages, e.g. for first aid
• CPC Class Codes: A61F 2013/00591 breaking stress or force
• CPC Class Codes: A61F 2013/00595 breaking strain or extension
• CPC Class Codes: A61F 2013/00608 with reinforcing layers
• CPC Class Codes: Y10S 428/902 High modulus filament or fiber
• CPC Class Codes: Y10T 428/249934 Fibers are aligned substantially parallel
• CPC Class Codes: Y10T 428/249939 Two or more layers
• CPC Class Codes: Y10T 428/24994 Fiber embedded in or on the surface of a polymeric matrix
• CPC Class Codes: Y10T 428/249986 Void-containing component contains also a solid fiber or solid particle
• CPC Class Codes: Y10T 442/3715 Nonwoven fabric layer comprises parallel arrays of strand material
• CPC Class Codes: Y10T 442/406 Including parallel strips

Abstract

Support material for medical purposes, which is characterized in that an addition of high-strength fibers or threads on an organic or inorganic base with a maximum tensile strength over 60 cN/tex gives the support material a maximum tensile strength of over 2 N/cm and the support material has mainly a maximum tensile strength of under 400%.

Claims

1. Pliable support material for medical purposes comprising an organic base of batting, woven material, film, foam, gel or knit goods, and having, in addition to said base, high-strength fibers and/or threads with a tensile strength of more than 60 cN/tex added thereto, said support material having a tensile strength of over 2 N/cm and a tensile elongation under 25%, said support material remaining pliable throughout its use for said medical purposes.

2. Pliable support material for medical purposes according to claim 1, wherein the support material is strenghtened with a thread or a plurality of threads of monofilament, multifilament or spun fiber yarn.

3. Pliable support material for medical purposes according to claim 1, characterized in that the support material is strengthened with oriented fibers.

4. Pliable support material for medical purposes according to claim 1, characterized in that the fibers or threads consist of glass, carbon or polymides.

5. Pliable support material for medical purposes according to claim 1, characterized in that the support material is laminated with the threads and/or fibers.

6. Pliable support material for medical purposes according to claim 1, characterized in that the threads and/or fibers are incorporated into the support material.

7. Pliable support material for medical purposes according to claim 1, characterized in that the threads and/or fibers are embedded into the support material.

8. Support material for medical purposes according to claim 1, wherein the support material can be torn by hand perpendicularly to and/or not perpendicularly to the threads and/or fibers.

9. Pliable support material for medical purposes according to claim 1, wherein, when said support material is stressed in use, said stress is in a direction and the threads and/or fibers are aligned in the direction of stress on the support material.

10. Pliable support material for medical purposes according to claim 1, wherein said support material is used for tape bandages.

11. Pliable support material for medical purposes according to claim 1, wherein said support material is used for roll plasters.

12. Pliable support material for medical purposes according to claim 1, wherein said support material is used for first-aid bandages.

13. Pliable support material for medical purposes according to claim 1, wherein the tensile strength is over 40 N/cm.

14. Pliable support material for medical purposes according to claim 1, wherein the tensile elongation is at a specific weight of under 140 g/m².

15. Pliable support material for medical purposes comprising an organic or inorganic base of batting, woven material, foam or knit goods having, in addition to said base, high-strength fibers and/or threads with a tensile strength of more than 60 cN/tex added thereto, said support material having a tensile strength of over 2 N/cm and a tensile elongation under 25% at a specific weight of under 140 g/m².