A reduced-pressure treatment system for treating a wound on a patient includes a composite manifold that may help prevent or minimize injury to a wound edge of the wound being treated with reduced pressure. The composite manifold includes a perimeter manifold member and an inboard manifold member. T
A reduced-pressure treatment system for treating a wound on a patient includes a composite manifold that may help prevent or minimize injury to a wound edge of the wound being treated with reduced pressure. The composite manifold includes a perimeter manifold member and an inboard manifold member. The perimeter manifold member is designed to not collapse substantially under reduced pressure in a therapy range. The perimeter manifold member may be more rigid with respect to compressibility than the inboard manifold member. A sealing member is used to form a fluid seal over the wound, and a reduced-pressure subsystem provides reduced pressure to the composite manifold. Other systems, methods, and dressings are presented.
대표청구항▼
1. A system for providing reduced-pressure treatment to a wound, the system comprising: an inboard manifold having a first rigidity;a perimeter manifold circumscribing the inboard manifold, the perimeter manifold having a second rigidity that is greater than the first rigidity of the inboard manifol
1. A system for providing reduced-pressure treatment to a wound, the system comprising: an inboard manifold having a first rigidity;a perimeter manifold circumscribing the inboard manifold, the perimeter manifold having a second rigidity that is greater than the first rigidity of the inboard manifold;a sealing member configured to be placed over the inboard manifold and the perimeter manifold to form a sealed space; anda reduced-pressure source configured to be fluidly coupled to the sealed space to provide a therapeutic reduced pressure;wherein the perimeter manifold has adequate strength to resist collapse under compressive force transmitted by the sealing member when under therapeutic reduced pressure. 2. The system of claim 1, wherein a bulk modulus of the perimeter manifold is greater than a bulk modulus of the inboard manifold. 3. The system of claim 1, wherein a density of the perimeter manifold is greater than a density of the inboard manifold. 4. The system of claim 1, further comprising support elements disposed in the perimeter manifold. 5. The system of claim 4, wherein the support elements comprise filaments. 6. The system of claim 4, wherein the support elements comprise vertical posts. 7. The system of claim 4, wherein the support elements comprise struts. 8. The system of claim 1, further comprising a bio-friendly stiffening substance coating the perimeter manifold. 9. The system of claim 8, wherein the bio-friendly stiffening substance comprises a gel configured to be applied to an edge of a wound, and the perimeter manifold is configured to be coated by the bio-friendly stiffening substance in situ. 10. The system of claim 1, wherein the perimeter manifold comprises a tape applied to the periphery of the inboard manifold. 11. The system of claim 1, wherein the perimeter manifold is configured to support a wound edge. 12. The system of claim 11, wherein the perimeter manifold is configured to carry a load asserted by the sealing member. 13. The system of claim 1, wherein the perimeter manifold is configured to carry a load asserted by the sealing member. 14. A manifold for use with a reduced-pressure treatment system, the manifold comprising: an inboard manifold having a first rigidity; anda perimeter manifold circumscribing the inboard manifold, the perimeter manifold having a second rigidity that is greater than the first rigidity of the inboard manifold;wherein the perimeter manifold has adequate strength to resist collapse under compressive force transmitted by a sealing member when under therapeutic reduced pressure. 15. The manifold of claim 14, wherein a bulk modulus of the perimeter manifold is greater than a bulk modulus of the inboard manifold. 16. The manifold of claim 14, wherein a density of the perimeter manifold is greater than a density of the inboard manifold. 17. The manifold of claim 14, further comprising support elements disposed in the perimeter manifold. 18. The manifold of claim 17, wherein the support elements comprise filaments. 19. The manifold of claim 17, wherein the support elements comprise vertical posts. 20. The manifold of claim 17, wherein the support elements comprise struts. 21. The manifold of claim 14, further comprising a bio-friendly stiffening substance coating the perimeter manifold. 22. The manifold of claim 21, wherein the bio-friendly stiffening substance comprises a gel configured to be applied to an edge of a wound, and the perimeter manifold is configured to be coated by the bio-friendly stiffening substance in situ. 23. The manifold of claim 14, wherein the perimeter manifold comprises a tape applied to the periphery of the inboard manifold. 24. The manifold of claim 14, wherein the perimeter manifold is configured to support a wound edge. 25. The manifold of claim 24, wherein the perimeter manifold is configured to carry a load asserted by the sealing member. 26. The manifold of claim 14, wherein the perimeter manifold is configured to carry a load asserted by the sealing member. 27. A method of manufacturing a composite manifold for use in a reduced-pressure treatment system, the method comprising the steps of: forming a perimeter manifold member adapted to support an edge of a wound and carry a load asserted by a sealing member when under therapeutic reduced pressure, the perimeter manifold member having an interior portion and a first bulk modulus K1;forming an inboard manifold member having a second bulk modulus K2, wherein K1 is greater than K2; anddisposing the inboard manifold member adjacent the interior portion of the perimeter manifold member. 28. The method of claim 27, further comprising the step of coupling the perimeter manifold member to the inboard manifold member. 29. The method of claim 27, wherein the steps of forming a perimeter manifold member and forming an inboard manifold member comprise the steps of: forming the perimeter manifold member from a first manifold material having a first density, ρ1;forming the inboard manifold member from a second manifold material having a second density, ρ2; andwherein the first density is greater than the second density, ρ1>ρ2. 30. The method of claim 27, wherein the step of forming a perimeter manifold member comprises the steps of forming the perimeter manifold member from a first manifold material and applying a bioactive material to at least a portion of the first manifold material. 31. The method of claim 27, wherein the step of forming a perimeter manifold member comprises the steps of forming the perimeter manifold member from a first manifold material and applying a bioactive material to at least a portion of the first manifold material and wherein the bioactive material comprises epinephrine.
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이 특허에 인용된 특허 (87)
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