Dressing with sealing and retention interface
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-013/00
A61F-013/02
A61M-027/00
A61M-001/00
출원번호
US-0490898
(2014-09-19)
등록번호
US-9956120
(2018-05-01)
발명자
/ 주소
Locke, Christopher Brian
출원인 / 주소
KCI Licensing, Inc.
인용정보
피인용 횟수 :
0인용 특허 :
181
초록▼
A dressing for treating a tissue site may include a base layer, a sealing member, a first and a second wicking layer, and an absorbent layer. The base layer may have a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion. At leas
A dressing for treating a tissue site may include a base layer, a sealing member, a first and a second wicking layer, and an absorbent layer. The base layer may have a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion. At least one of the apertures in the periphery may be positioned at an edge of the periphery, and may have an interior exposed at the edge. The sealing member and the base layer may define an enclosure. The first and the second wicking layer may each be disposed in the enclosure with the absorbent layer positioned between the first and the second wicking layer. Other dressings, systems, and methods are disclosed.
대표청구항▼
1. A system for treating a tissue site, comprising: a tissue interface adapted to be positioned proximate to the tissue site;a dressing, comprising: a base layer having a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the
1. A system for treating a tissue site, comprising: a tissue interface adapted to be positioned proximate to the tissue site;a dressing, comprising: a base layer having a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the apertures in the periphery being larger than the apertures in the central portion, a plurality of the apertures in the periphery being positioned along an edge of the periphery and having an interior exposed at the edge, and wherein the base layer is adapted to cover the tissue interface and tissue surrounding the tissue site,an adhesive configured to extend through the apertures at least in the periphery of the base layer to contact the tissue surrounding the tissue site,a sealing member having a periphery and a central portion, the periphery of the sealing member positioned proximate to the periphery of the base layer, wherein the central portion of the sealing member and the central portion of the base layer define an enclosure,a first wicking layer disposed in the enclosure,a second wicking layer disposed in the enclosure,an absorbent layer disposed between the first wicking layer and the second wicking layer, anda conduit interface positioned proximate to the sealing member and in fluid communication with the enclosure; anda reduced-pressure source adapted to be coupled in fluid communication with the conduit interface to provide reduced pressure to the dressing. 2. The system of claim 1, wherein the tissue interface is adapted to distribute reduced pressure to the tissue site, and wherein the tissue interface is comprised of a porous hydrophobic material. 3. The system of claim 1, wherein the dressing is adapted to provide reduced pressure to the tissue interface and to store fluid extracted from the tissue site through the tissue interface. 4. The system of claim 1, wherein the central portion of the base layer is adapted to be positioned proximate to the tissue interface and the periphery of the base layer is adapted to be positioned proximate to the tissue surrounding the tissue site. 5. The system of claim 1, wherein the periphery of the base layer is adapted to surround the tissue interface. 6. The system of claim 1, wherein the apertures in the base layer are adapted to be in fluid communication with the tissue interface and the tissue surrounding the tissue site. 7. The system of claim 1, wherein the base layer is comprised of silicone. 8. The system of claim 1, wherein the adhesive is adapted to be in fluid communication with the tissue surrounding the tissue site through the apertures in the base layer, and wherein the adhesive is positioned at least between the periphery of the sealing member and the periphery of the base layer. 9. The system of claim 1, wherein the adhesive is an acrylic adhesive. 10. The system of claim 1, wherein the sealing member is liquid impermeable, and wherein the sealing member comprises polyurethane. 11. The system of claim 1, wherein the sealing member is adapted to provide a sealed space between the sealing member and the tissue site. 12. The system of claim 1, wherein the adhesive is disposed on a surface of the sealing member adapted to face the base layer. 13. The system of claim 1, wherein the first wicking layer has a grain structure adapted to wick fluid along a surface of the first wicking layer, and wherein the second wicking layer has a grain structure adapted to wick fluid along a surface of the second wicking layer. 14. The system of claim 1, wherein the absorbent layer is comprised of a hydrophilic material that is adapted to absorb fluid. 15. The system of claim 1, wherein the absorbent layer is a plurality of absorbent layers, and wherein the plurality of absorbent layers are positioned in fluid communication between the first wicking layer and the second wicking layer. 16. The system of claim 15, further comprising at least one intermediate wicking layer disposed in fluid communication between the absorbent layers. 17. The system of claim 1, wherein a peripheral portion of the first wicking layer is coupled to a peripheral portion of the second wicking layer providing a wicking layer enclosure surrounding the absorbent layer between the first and the second wicking layer. 18. The system of claim 1, the dressing further comprising an anti-microbial layer disposed in the enclosure. 19. The system of claim 1, further comprising an odor filter adapted to substantially preclude the passage of odors out of a sealed space between the sealing member and the tissue site, wherein the odor filter is carried by the conduit interface, and wherein the odor filter comprises carbon. 20. The system of claim 19, the dressing further comprising a primary hydrophobic filter adapted to substantially preclude the passage of liquids out of the sealed space, wherein the primary hydrophobic filter is carried by the conduit interface. 21. The system of claim 20, further comprising a conduit having an internal lumen coupled in fluid communication between the conduit interface and the reduced-pressure source, wherein the conduit has a secondary hydrophobic filter disposed in the internal lumen. 22. The system of claim 21, wherein fluid communication between the dressing and the reduced-pressure source is provided through each of the odor filter, the primary hydrophobic filter, and the secondary hydrophobic filter. 23. The system of claim 1, wherein the second wicking layer has at least a peripheral portion positioned in contact with the sealing member, wherein the absorbent layer has a peripheral portion in contact with the sealing member and surrounding the peripheral portion of the second wicking layer, and wherein the first wicking layer has a peripheral portion in contact with the sealing member and surrounding the peripheral portion of the absorbent layer. 24. The system of claim 23, wherein at least the peripheral portions of each of the second wicking layer, the absorbent layer, and the first wicking layer are coupled to the sealing member. 25. The system of claim 1, the base layer further comprising a border substantially surrounding the central portion and positioned between the central portion and the periphery, the border being substantially free of the apertures. 26. The system of claim 25, the apertures in the central portion being positioned at the border and away from the border, the apertures in the central portion positioned at the border being separated from one another by a greater distance than the apertures in the central portion positioned away from the border. 27. The system of claim 1, at least three of the apertures in a corner of the periphery positioned in a triangular configuration and being smaller than the other apertures in the periphery. 28. The system of claim 1, a plurality of the apertures in the periphery being positioned at the edge and being fluid communication in a lateral direction with the edge, the apertures positioned at the edge being spaced substantially equidistant around the periphery, the adhesive in fluid communication with the edge. 29. The system of claim 1, at least one of the apertures in the periphery being positioned in a corner of the periphery and being substantially precluded from fluid communication in a lateral direction exterior to the corner, the adhesive being substantially precluded from fluid communication exterior to the corner. 30. A dressing for treating a tissue site, comprising: a base layer having a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the apertures in the periphery being larger than the apertures in the central portion, a plurality of the apertures in the periphery being positioned along an edge of the periphery and having an interior exposed at the edge, and wherein the base layer is adapted to cover the tissue site;an adhesive configured to extend through the apertures in at least the periphery of the base layer to contact tissue surrounding the tissue site;a sealing member having a periphery and a central portion, the periphery of the sealing member positioned proximate to the periphery of the base layer, wherein the central portion of the sealing member and the central portion of the base layer define an enclosure;a first wicking layer disposed in the enclosure;a second wicking layer disposed in the enclosure;an absorbent layer positioned in fluid communication between the first wicking layer and the second wicking layer, wherein a peripheral portion of the first wicking layer is coupled to a peripheral portion of the second wicking layer providing a wicking layer enclosure surrounding the absorbent layer between the first and the second wicking layer; anda conduit interface positioned proximate to the sealing member and in fluid communication with the enclosure. 31. The dressing of claim 30, wherein the dressing is adapted to provide reduced pressure to the tissue site and to store fluid extracted from the tissue site. 32. The dressing of claim 30, wherein the central portion of the base layer is adapted to cover the tissue site and the periphery of the base layer is adapted to be positioned proximate to tissue surrounding the tissue site. 33. The dressing of claim 30, wherein the apertures in the base layer are adapted to be in fluid communication with the tissue site and tissue surrounding the tissue site. 34. The dressing of claim 30, wherein the base layer is comprised of silicone. 35. The dressing of claim 30, wherein the adhesive is adapted to be in fluid communication with tissue surrounding the tissue site through the apertures in the base layer. 36. The dressing of claim 30, wherein the adhesive is an acrylic adhesive. 37. The dressing of claim 30, wherein the sealing member is liquid impermeable, and wherein the sealing member comprises polyurethane. 38. The dressing of claim 30, wherein the sealing member is adapted to provide a sealed space between the sealing member and the tissue site. 39. The dressing of claim 30, wherein the adhesive is disposed on a surface of the sealing member adapted to face the base layer. 40. The dressing of claim 30, wherein the first wicking layer has a grain structure adapted to wick fluid along a surface of the first wicking layer, and wherein the second wicking layer has a grain structure adapted to wick fluid along a surface of the second wicking layer. 41. The dressing of claim 30, wherein the absorbent layer is comprised of a hydrophilic material that is adapted to absorb fluid. 42. The dressing of claim 30, wherein the absorbent layer is a plurality of absorbent layers, and wherein the plurality of absorbent layers are positioned in fluid communication between the first wicking layer and the second wicking layer. 43. The dressing of claim 42, further comprising at least one intermediate wicking layer disposed in fluid communication between the absorbent layers. 44. The dressing of claim 30, further comprising an anti-microbial layer disposed in the enclosure. 45. The dressing of claim 30, further comprising an odor filter adapted to substantially preclude the passage of odors out of a sealed space between the sealing member and the tissue site, wherein the odor filter is carried by the conduit interface, and wherein the odor filter comprises carbon. 46. The dressing of claim 45, further comprising a primary hydrophobic filter adapted to substantially preclude the passage of liquids out of the sealed space, wherein the primary hydrophobic filter is carried by the conduit interface. 47. The dressing of claim 30, the base layer further comprising a border substantially surrounding the central portion and positioned between the central portion and the periphery, the border being substantially free of the apertures. 48. The dressing of claim 47, the apertures in the central portion being positioned at the border and away from the border, the apertures in the central portion positioned at the border being separated from one another by a greater distance than the apertures in the central portion positioned away from the border. 49. The dressing of claim 47, the border having a width between about 4 millimeters to about 11 millimeters. 50. The dressing of claim 30, wherein the apertures in the periphery have a diameter between about 9.8 millimeters to about 10.2 millimeters, and wherein the apertures in the central portion have a diameter between about 1.8 millimeters to about 2.2 millimeters. 51. The dressing of claim 30, wherein the apertures in the periphery each have a diameter, the diameter of at least one of the apertures in the periphery being separated from the diameter of another of the apertures in the periphery by a distance between about 2.8 millimeters to about 3.2 millimeters. 52. The dressing of claim 30, wherein the apertures in the central portion each have a center, the center of at least one of the apertures in the central portion being separated from the center of another of the apertures in the central portion in a first direction by a distance between about 2.8 millimeters to about 3.2 millimeters. 53. The dressing of claim 52, the center of at least one of the apertures in the central portion being separated from the center of another of the apertures in the central portion in a second direction by a distance between about 2.8 millimeters to about 3.2 millimeters, the second direction being transverse to the first direction. 54. The dressing of claim 30, at least three of the apertures in a corner of the periphery positioned in a triangular configuration and being smaller than the other apertures in the periphery. 55. The dressing of claim 30, a plurality of the apertures in the periphery being positioned at the edge and being fluid communication in a lateral direction with the edge, the apertures positioned at the edge being spaced substantially equidistant around the periphery, the adhesive in fluid communication with the edge. 56. The dressing of claim 30, at least one of the apertures in the periphery being positioned in a corner of the periphery and being substantially precluded from fluid communication in a lateral direction exterior to the corner, the adhesive being substantially precluded from fluid communication exterior to the corner. 57. A system for treating a tissue site, comprising: a tissue interface adapted to be positioned proximate to the tissue site and to distribute reduced pressure to the tissue site;a dressing adapted to provide reduced pressure to the tissue interface and to store fluid extracted from the tissue site through the tissue interface, comprising: a base layer comprising a periphery surrounding a central portion and a plurality of apertures disposed through the periphery and the central portion, the apertures in the periphery being larger than the apertures in the central portion, a plurality of the apertures in the periphery being positioned along an edge of the periphery and having an interior exposed at the edge, at least one of the apertures in the periphery being positioned in a corner of the periphery and being substantially precluded from fluid communication in a lateral direction exterior to the corner, the base layer further comprising a border substantially surrounding the central portion and positioned between the central portion and the periphery, the border being free of the apertures, wherein the central portion of the base layer is adapted to be positioned proximate to the tissue interface and the periphery of the base layer is adapted to be positioned proximate to tissue surrounding the tissue site, wherein the periphery of the base layer is adapted to surround the tissue interface, and wherein the apertures in the base layer are adapted to be in fluid communication with the tissue interface and the tissue surrounding the tissue site,an adhesive configured to extend through the apertures in at least the periphery of the base layer to contact the tissue surrounding the tissue site, wherein the adhesive is adapted to be in fluid communication with the tissue surrounding the tissue site through the apertures in the base layer,a sealing member having a periphery and a central portion, the periphery of the sealing member positioned proximate the periphery of the base layer, wherein the central portion of the sealing member and the central portion of the base layer define an enclosure,a first wicking layer disposed in the enclosure,a second wicking layer disposed in the enclosure,an absorbent layer positioned in fluid communication between the first wicking layer and the second wicking layer, anda conduit interface positioned proximate to the sealing member and in fluid communication with the enclosure; anda reduced-pressure source adapted to be coupled in fluid communication with the conduit interface to provide reduced pressure to the dressing. 58. The system of claim 57, the apertures in the central portion being positioned at the border and away from the border, the apertures in the central portion positioned at the border being separated from one another by a greater distance than the apertures in the central portion positioned away from the border. 59. The system of claim 57, at least three of the apertures in a corner of the periphery positioned in a triangular configuration and being smaller than the other apertures in the periphery. 60. The system of claim 57, a plurality of the apertures in the periphery being positioned at the edge and being fluid communication in a lateral direction with the edge, the apertures positioned at the edge being spaced substantially equidistant around the periphery, the adhesive in fluid communication with the edge.
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