Dressing assemblies for wound treatment using reduced pressure
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-013/00
A61F-013/02
A61L-015/60
A61M-001/00
A61H-001/00
A61F-015/00
출원번호
US-0175743
(2014-02-07)
등록번호
US-10143593
(2018-12-04)
발명자
/ 주소
Kazala, Jr., Richard Marvin
Long, Justin Alexander
Barta, Eric Woodson
Yao, Li
Wilkes, Robert Peyton
출원인 / 주소
KCI Licensing, Inc.
인용정보
피인용 횟수 :
0인용 특허 :
88
초록▼
A dressing assembly for use with a reduced pressure treatment system, the dressing assembly develops a directed force under reduced pressure. The directed force may be a radial force or a closing force. The dressing assembly includes a shaped dressing bolster having a shaped extremity that is operab
A dressing assembly for use with a reduced pressure treatment system, the dressing assembly develops a directed force under reduced pressure. The directed force may be a radial force or a closing force. The dressing assembly includes a shaped dressing bolster having a shaped extremity that is operable to evenly deliver the radial force and to distribute reduced pressure. Numerous shapes may be used for the shaped extremity. The dressing assembly may further include an over-drape to assist in creating a seal over the shaped dressing bolster and against a portion of a patient's epidermis.
대표청구항▼
1. A dressing assembly for use with a reduced pressure treatment system, the dressing assembly comprising: a dressing bolster having a first surface and a second surface, wherein the dressing bolster comprises a first bolster layer formed from a hydrophilic foam and a second bolster layer formed fro
1. A dressing assembly for use with a reduced pressure treatment system, the dressing assembly comprising: a dressing bolster having a first surface and a second surface, wherein the dressing bolster comprises a first bolster layer formed from a hydrophilic foam and a second bolster layer formed from a hydrophobic foam, and wherein the first bolster layer and the second bolster layer are adjacently disposed;a comfort layer coupled to the second surface of the dressing bolster;an over-drape disposed over the first surface of the dressing bolster, wherein the over-drape is anisotropic; andan inner layer coupled to the comfort layer and the over-drape and comprising a treatment aperture;wherein the dressing bolster is configured to distribute a directed force when under a reduced pressure. 2. The dressing assembly of claim 1, wherein the dressing bolster further comprises a plurality of flexibility notches formed on the first surface. 3. The dressing assembly of claim 1, wherein the dressing bolster comprises a trapezoidal cross-section in two orthogonal planes. 4. The dressing assembly of claim 1, wherein the dressing bolster comprises an arcuate cross-section in two orthogonal planes. 5. The dressing assembly of claim 1, wherein the dressing bolster comprises an elliptical cross-section in two orthogonal planes. 6. The dressing assembly of claim 1, wherein the dressing bolster comprises an isotropic material. 7. The dressing assembly of claim 1, wherein the dressing bolster comprises an anisotropic material. 8. The dressing assembly of claim 1, wherein the dressing bolster comprises a reticulated foam having a density greater than 25.6 kg/m3. 9. The dressing assembly of claim 1, wherein the dressing bolster comprises a reticulated foam having a density greater than 80.0 kg/m3. 10. The dressing assembly of claim 1, further comprising: a plurality of flexibility notches formed on the first surface of the dressing bolster; and wherein the dressing bolster comprises an oblique extremity extending from the first surface to the second surface of the dressing bolster, and wherein the oblique extremity makes an angle alpha (α) with a normal reference and wherein the angle alpha (α) is in a range between 25 degrees and 65 degrees (65°>α>25°). 11. The dressing assembly of claim 1, wherein the dressing bolster comprises a manifold material. 12. The dressing assembly of claim 1, wherein the inner layer comprises a silicone material. 13. The dressing assembly of claim 1, wherein the inner layer comprises a polyurethane material. 14. A method of manufacturing a shaped dressing bolster for use with a reduced pressure treatment system, the method comprising: providing a medical bolster material;forming a shaped dressing bolster having a first surface and a second surface, wherein the shaped dressing bolster is formed from the medical bolster material, wherein the shaped dressing bolster comprises a first bolster layer formed from a hydrophilic foam and a second bolster layer formed from a hydrophobic foam, and wherein the first bolster layer and the second bolster layer are adjacently disposed;coupling a comfort layer to the second surface of the shaped dressing bolster;coupling an over-drape to the first surface of the shaped dressing bolster, wherein the over-drape is anisotropic; andcoupling an inner layer to the comfort layer and the over-drape, wherein the inner layer comprises a treatment aperture;wherein the shaped dressing bolster is operable to distribute reduced pressure and to evenly distribute a radial, compressive force. 15. The method of manufacturing a shaped dressing bolster of claim 14, wherein forming a shaped dressing bolster comprises forming a trapezoidal cross-section in two orthogonal planes. 16. The method of manufacturing a shaped dressing bolster of claim 14, wherein forming a shaped dressing bolster comprises forming a cross-section with an arcuate portion in two orthogonal planes. 17. The method of manufacturing a shaped dressing bolster of claim 14, wherein forming a shaped dressing bolster comprises: providing a block of reticulated foam having a density greater than 20 kg/m3;cutting the reticulated foam to a desired height;laminating the comfort layer to the reticulated foam; andcutting the reticulated foam with a die to form the shaped dressing bolster. 18. The method of manufacturing of claim 14, wherein the inner layer comprises a silicone material. 19. The method of manufacturing of claim 14, wherein the inner layer comprises a polyurethane material. 20. A dressing assembly for use with a reduced pressure treatment system, the dressing assembly comprising: a dressing bolster having a first surface and a second surface;a comfort layer coupled to the second surface of the dressing bolster;an over-drape disposed over the first surface of the dressing bolster, wherein the over-drape is anisotropic; andan inner layer coupled to the comfort layer and the over-drape and comprising a treatment aperture;wherein the dressing bolster is configured to distribute a directed force when under a reduced pressure. 21. The dressing assembly of claim 20, wherein the dressing bolster further comprises a plurality of flexibility notches formed on the first surface. 22. The dressing assembly of claim 20, wherein the dressing bolster comprises a trapezoidal cross-section in two orthogonal planes. 23. A method of manufacturing a shaped dressing bolster for use with a reduced pressure treatment system, the method comprising: providing a medical bolster material;forming a shaped dressing bolster having a first surface and a second surface, wherein the shaped dressing bolster is formed from the medical bolster material;coupling a comfort layer to the second surface of the shaped dressing bolster;coupling an over-drape to the first surface of the shaped dressing bolster, wherein the over-drape is anisotropic; andcoupling an inner layer to the comfort layer and the over-drape, wherein the inner layer comprises a treatment aperture;wherein the shaped dressing bolster is operable to distribute reduced pressure and to evenly distribute a radial, compressive force. 24. The method of manufacturing a shaped dressing bolster of claim 23, wherein forming a shaped dressing bolster further comprises forming a plurality of flexibility notches formed on the first surface. 25. The method of manufacturing a shaped dressing bolster of claim 23, wherein forming a shaped dressing bolster further comprises forming a trapezoidal cross-section in two orthogonal planes.
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이 특허에 인용된 특허 (88)
Ward William J. (Hull GBX) Shorthouse Joanne (Hull GBX), Adhesive dressing for retaining a cannula on the skin.
Errede Louis A. (North Oaks MN) Stoesz James D. (St. Paul MN) Winter ; deceased George D. (late of St. Paul MN by Jenny Upton ; personal representative), Composite wound dressing.
Todd Robert J. (Salt Lake City UT) Yagge Jaime E. (Salt Lake City UT) Lowe James E. (Durham NC) Wonder Terry M. (Salt Lake City UT), Medical suction apparatus.
Ferdman Ariel (12 Hillside Ave. Melrose MA 02176) Kuo Jing-wen (Boxboro MA) Miller David (Brookline MA) Pinsky Vladimir (Brighton MA) Richards William D. (Medway MA) Swann David (Cambridge MA), Method and device for wound closure.
Moriuchi Yousuke (Fujinomiya JPX) Ishida Toshinobu (Fujinomiya JPX) Kousai Tadashi (Fujinomiya JPX), Method of securing a catheter body to a human skin surface.
Luheshi Abdul B. N. (Hull GB3) Smalley Robert K. (Urmston GB3) Kennewell Peter D. (Okus GB3) Westwood Robert (Kingston Bagpuize GB3), Process for the preparation of azabicyclo compounds.
Kashmer James S. (Budd Lake NJ) Klimbach John K. (Wayne NJ) Vendetti Randall P. (Lincoln Park NJ), Suction canister with unitary shut-off valve and filter features.
Richmond James W. (Kalamazoo MI) Tice Robert G. (Portage MI) Booth ; III William M. (Paw Paw MI), Vacuum wound drainage system and lipids baffle therefor.
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Lock Peter M. (327 Lordswood La. Petrosa ; Walderslade ; Chatham ; Kent GB2) Webb David R. (9 Lambourn Way Lordwood ; Chatham ; Kent GB2), Wound dressing materials.
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