Absorptive Pad

• US 20100030170A1
• Filed: 07/02/2009
• Published: 02/04/2010
• Est. Priority Date: 08/01/2008
• Status: Abandoned Application

• Current Assignee: Canada T. Andrew, Hall D. Brian, Housley W. Mark, Keith Alan Keller
• Original Assignee: Canada T. Andrew, Hall D. Brian, Housley W. Mark, Keith Alan Keller
• Inventors: Hall, D. Brian, Housley, W. Mark, Canada, T. Andrew, Keller, Keith Alan
• Application Number:
  US12/496,771
• Publication Number:
  US 20100030170A1
• Time in Patent Office: Days
• US Class Current: 604/360
• 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 13/01017 synthetic, e.g. polymer based
• CPC Class Codes: A61F 13/01029 made of multiple layers
• CPC Class Codes: A61F 13/533 having discontinuous areas of compression
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control
• CPC Class Codes: A61F 2013/00157 for burns or skin transplants A61F2013/00187 takes precedence; not adhering to the wound A61F2013/00217
• CPC Class Codes: A61F 2013/00251 with macroscopic openings
• CPC Class Codes: A61F 2013/00268 impervious, i.e. occlusive bandage
• CPC Class Codes: A61F 2013/00519 for treating burn bandages for burns or skin transplants A61F2013/00157
• CPC Class Codes: A61F 2013/00608 with reinforcing layers
• CPC Class Codes: A61F 2013/00859 with macroscopic openings
• CPC Class Codes: A61F 2013/00885 impervious, i.e. occlusive bandage
• CPC Class Codes: A61F 2013/0091 with disinfecting or anaesthetics means, e.g. anti-mycrobic
• CPC Class Codes: A61F 2013/00936 metal wound bandages with a metallic layer A61F2013/00234

Abstract

This disclosure relates to a substrate comprising multiple layers which are designed to provide moisture absorption, non-adherence, and antimicrobial properties to a contact surface. The substrate is minimally comprised of (a) at least one skin contact layer of apertured hydrophobic polymeric film, (b) at least one layer of absorptive material that contains a reinforcement material, and (c) at least one layer of liquid impermeable film backing. The substrate may also include a layer of material that contains an antimicrobial agent. The substrate may be ideally suited for use in the medical field as an absorptive pad for end-uses such as wound care (e.g. burn care), surgery care, and incontinence care.

Claims

1. An absorptive pad comprising the layers of:

(a) at least one skin-contact layer of apertured hydrophobic film;

(b) optionally, at least one layer of non-electrically conductive absorptive material that contains an antimicrobial agent;

(c) at least one absorptive layer that contains at least one reinforcement material;

(d) optionally, at least one absorptive reservoir layer; and

(e) at least one layer of occlusive film comprising the outermost layer of the absorptive pad;

wherein each of layers (a)-(e) are arranged substantially coextensive with each other.

2. The absorptive pad of claim 1, wherein layer “

b”

is a fabric.

3. The absorptive pad of claim 2, wherein the fabric is comprised of a blend of nylon and polyester fiber.

4. The absorptive pad of claim 3, wherein the fabric is comprised of a blend of nylon, polyester, and spandex fiber.

5. The absorptive pad of claim 1, wherein the antimicrobial agent of layer “

b”

is a silver-ion containing compound.

6. The absorptive pad of claim 5, wherein the silver-ion containing compound is a silver zirconium phosphate compound.

7. The absorptive pad of claim 5, wherein layer “

b”

further contains a binding agent.

8. The absorptive pad of claim 7, wherein the binding agent is a polyurethane-based compound.

9. The absorptive pad of claim 1, wherein layer “

c”

is a fabric.

10. The absorptive pad of claim 9, wherein the fabric is comprised of a blend of nylon and polyester fiber.

11. The absorptive pad of claim 9, wherein the at least one reinforcement material is yarn stitch bonded throughout the fabric.

12. The absorptive pad of claim 9, wherein the at least one reinforcement material is long staple fiber.

13. The absorptive pad of claim 1, wherein layer “

d”

is a fabric.

14. The absorptive pad of claim 13, wherein the fabric is comprised of a blend of nylon and polyester fiber.

15. The absorptive pad of claim 1, wherein layers “

c” and

“

d”

are fabrics comprised of 100% synthetic fibers.

16. The absorptive pad of claim 1, wherein the apertured hydrophobic film layer is comprised of polyethylene.

17. The absorptive pad of claim 1, wherein the at least one layer of occlusive film is comprised of polyethylene.

18. The absorptive pad of claim 1, wherein at least one of layers (b), (c), and (d) contain an antimicrobial agent.

19. The absorptive pad of claim 1, wherein the layers comprising the absorptive pad are sewn together.

20. An absorptive pad comprising the sequential layers of:

(a) at least one skin-contact layer of apertured hydrophobic film;

(b) optionally, at least one layer of non-electrically conductive absorptive material that contains an antimicrobial agent;

(c) at least one absorptive layer that contains at least one reinforcement material;

(d) at least one absorptive reservoir layer; and

(e) at least one layer of occlusive film;

wherein each of layers (a)-(e) are arranged substantially coextensive with each other.

21. An absorptive pad comprising the sequential layers of:

(a) at least one skin-contact layer of apertured hydrophobic film;

(b) at least one layer of non-electrically conductive absorptive material that contains an antimicrobial agent;

(c) at least one absorptive layer that contains at least one reinforcement material;

(d) at least one absorptive reservoir layer;

(e) at least one layer of occlusive film;

wherein each of layers (a)-(e) are arranged substantially coextensive with each other.