[특허]Wound filler having dynamic motion

KCI Licensing, Inc.

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특허 상세정보

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Wound filler having dynamic motion

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-013/00 A61L-015/42
출원번호	US-0714119 (2012-12-13)
등록번호	US-9125767 (2015-09-08)
발명자 / 주소	Locke, Christopher Brian Luckemeyer, James A. Robinson, Timothy Mark
출원인 / 주소	KCI Licensing, Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 88

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Systems and apparatuses for administering reduced pressure treatment to a tissue site including a wound filler for positioning adjacent a wound site on a patient. The wound filler includes at least one strand having a plurality of nodes positioned along a length of the strand. The at least one strand has a charged state and an uncharged state. In the charged state, the at least one strand includes a stored energy that when released would deform or move the at least one strand. In the discharged state, the stored energy has been released. The wound filler...

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1. A wound filler adapted to be positioned adjacent a tissue site for treating the tissue site, comprising: at least one strand having a plurality of nodes positioned along a length of the strand, the at least one strand moveable from a charged state to a discharged state, wherein in the charged state the at least one strand includes a stored energy, and wherein the at least one strand is adapted to move from the charged state to the discharged state upon release of the stored energy; anda removable sheath substantially encasing the at least one strand, the removable sheath adapted to retain the at least one strand in the charged state, wherein removal of the removable sheath permits the at least one strand to move to the discharged state. 2. The wound filler of claim 1, wherein at least one of the plurality of nodes has a circular shape. 3. The wound filler of claim 1, wherein at least one of the plurality of nodes has a pyramidal shape. 4. The wound filler of claim 1, wherein each of the plurality of nodes have a plurality of protrusions extending from each of the plurality of nodes. 5. The wound filler of claim 4, wherein the plurality of protrusions have a shape selected from the group consisting of a circular shape, a spiked shape, and a pyramidal shape. 6. The wound filler of claim 1, wherein the plurality of nodes are spaced apart in equal distances from one another along the length of the at least one strand. 7. The wound filler of claim 1, wherein the at least one strand is a first strand and a second strand, the first strand connected to the second strand by a plurality of rods. 8. The wound filler of claim 7, wherein in the charged state and in the discharged state, the first strand and the second strand form a double helix. 9. The wound filler of claim 7, wherein the first strand and the second strand are resilient, the first strand and the second strand being twisted and deformed in the charged state and untwisted and at rest in the discharged state. 10. The wound filler of claim 1, wherein the plurality of nodes each have a shape adapted to transmit a point load to the tissue site. 11. The wound filler of claim 1, wherein the removable sheath is bioabsorbable. 12. The wound filler of claim 11, wherein the at least one strand is adapted to gradually transition from the charged state to the discharged state upon dissolution of the bioabsorbable sheath. 13. The wound filler of claim 1, wherein the removable sheath is configured to dissolve in the presence of fluid from the tissue site. 14. The wound filler of claim 1, wherein the removable sheath is adapted to be removed in a time period that defines a rate of transition from the charged state to the discharged state. 15. The wound filler of claim 14, wherein the removable sheath is adapted to be gradually removed over a time period of 3 days. 16. The wound filler of claim 14, wherein the rate of transition defines the movement of the plurality of nodes. 17. The wound filler of claim 1, wherein the at least one strand is adapted to gradually transition from the charged state to the discharged state as the removable sheath is removed. 18. The wound filler of claim 1, wherein the at least one strand is resilient, the at least one strand being twisted and deformed in the charged state and untwisted and at rest in the discharged state. 19. The wound filler of claim 1, wherein the removable sheath is a coating. 20. A wound filler adapted to be positioned adjacent a tissue site for treating the tissue site, comprising: a first strand having a plurality of nodes positioned along a length of the first strand;a second strand having a plurality of nodes positioned along a length of the second strand, the first strand and the second strand moveable from a charged state to a discharged state, wherein in the charged state the first strand and the second strand include a stored energy, and wherein the first strand and the second strand are adapted to move from the charged state to the discharged state upon release of the stored energy;at least one rod adapted to attach the first strand to the second strand; anda removable sheath substantially surrounding both the first strand and the second strand, the removable sheath being dissolvable upon contact with fluid from the tissue site, wherein the first strand and the second strand are adapted to gradually transition from the charged state to the discharged state upon dissolution of the removable sheath, thereby providing movement relative to the tissue site of the plurality of nodes positioned along the first strand, the plurality of nodes positioned along the second strand, and the wound filler. 21. The wound filler of claim 20, wherein in the charged state and in the discharged state, the first strand and the second strand form a double helix shape. 22. The wound filler of claim 20, wherein each of the plurality of nodes on the first strand and the second strand have a plurality of protrusions extending from each of the plurality of nodes. 23. The wound filler of claim 20, wherein the removable sheath is bioabsorbable. 24. The wound filler of claim 20, wherein the removable sheath is adapted to be removed in a time period that defines a rate of transition from the charged state to the discharged state. 25. The wound filler of claim 24, wherein the removable sheath is adapted to be gradually removed over a time period of 3 days. 26. The wound filler of claim 24, wherein the rate of transition defines the movement of the plurality of nodes. 27. The wound filler of claim 20, wherein the first strand and the second strand are adapted to gradually transition from the charged state to the discharged state as the removable sheath is removed. 28. The wound filler of claim 20, wherein the first strand and the second strand are resilient, the first strand and the second strand being twisted and deformed in the charged state and the first strand and the second strand being untwisted and at rest in the discharged state. 29. A wound filler adapted to be positioned adjacent a tissue site for treating the tissue site, comprising: a web having a plurality of nodes positioned on the web, the web being comprised of a resilient material and moveable from a charged state having stored energy to a discharged state upon release of the stored energy; anda removable sheath fitted around the web and the plurality of nodes, the removable sheath substantially conforming to a shape defined by the web and the plurality of nodes, wherein the removable sheath is adapted to retain the web in the charged state and to dissolve upon contact with fluid from the tissue site, whereby dissolution of the removable sheath permits the web and the plurality of nodes to gradually transition from the charged state to the discharged state. 30. The wound filler of claim 29, wherein the web is a woven fabric comprised of fibers. 31. The wound filler of claim 29, wherein the web is a non-woven fabric comprised of fibers. 32. The wound filler of claim 29, wherein the plurality of nodes have a plurality of protrusions extending from each of the plurality of nodes. 33. The wound filler of claim 29, wherein the plurality of nodes are spaced apart in equal distances on the web. 34. The wound filler of claim 29, wherein the removable sheath is bioabsorbable. 35. The wound filler of claim 29, wherein the removable sheath is adapted to be removed in a time period that defines a rate of transition from the charged state to the discharged state. 36. The wound filler of claim 35, wherein the removable sheath is adapted to be gradually removed over a time period of 3 days. 37. The wound filler of claim 35, wherein the rate of transition defines the movement of the plurality of nodes. 38. The wound filler of claim 29, wherein the web is twisted and deformed in the charged state and untwisted and at rest in the discharged state. 39. The wound filler of claim 29, wherein the removable sheath is a coating. 40. A system for treating a tissue site with reduced pressure, comprising: a wound filler adapted to be positioned adjacent the tissue site, comprising: at least one strand having a plurality of nodes positioned along a length of the strand, the at least one strand moveable from a charged state to a discharged state, wherein in the charged state the at least one strand includes a stored energy, and wherein the at least one strand is adapted to move from the charged state to the discharged state upon release of the stored energy; anda removable sheath substantially encasing the at least one strand, the removable sheath adapted to retain the at least one strand in the charged state, wherein removal of the removable sheath permits the at least one strand to move to the discharged state; anda drape adapted to cover the wound filler at the tissue site to create a sealed space beneath the drape; anda reduced pressure source adapted to supply reduced pressure to the sealed space.

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Wound filler having dynamic motion

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Wound filler having dynamic motion

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