Dressings and methods for treating a tissue site on a patient
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-013/00
A61M-001/00
A61F-013/02
출원번호
US-0075864
(2013-11-08)
등록번호
US-9446176
(2016-09-20)
발명자
/ 주소
Locke, Christopher Brian
Robinson, Timothy Mark
Tout, Aidan Marcus
출원인 / 주소
KCI Licensing, Inc.
인용정보
피인용 횟수 :
0인용 특허 :
89
초록▼
Dressings, systems, and methods for treating a tissue site on a patient involve allowing liquids from the tissue site or a priming fluid to evaporate and exit the dressing through a liquid-impermeable, vapor-permeable membrane. The dressing is able to process more liquids than would otherwise be pos
Dressings, systems, and methods for treating a tissue site on a patient involve allowing liquids from the tissue site or a priming fluid to evaporate and exit the dressing through a liquid-impermeable, vapor-permeable membrane. The dressing is able to process more liquids than would otherwise be possible without evaporation and potentially to create reduced pressure. Other dressings, systems, and methods are disclosed.
대표청구항▼
1. A dressing for treating a tissue site, the dressing comprising: a covering configured to cover the tissue site to form a sealed space;a membrane forming at least a portion of the covering and configured to permit evaporation of water vapor through the membrane;a release liner releasably coupled t
1. A dressing for treating a tissue site, the dressing comprising: a covering configured to cover the tissue site to form a sealed space;a membrane forming at least a portion of the covering and configured to permit evaporation of water vapor through the membrane;a release liner releasably coupled to the covering proximate to the membrane; andan adhesive disposed on at least a portion of the covering, the membrane being free of adhesive. 2. The dressing of claim 1, further comprising a one-way valve coupled to the covering. 3. The dressing of claim 2, wherein the one-way valve permits fluid flow from the sealed space through the covering. 4. The dressing of claim 1, further comprising a pressure-regulating valve coupled to the covering. 5. The dressing of claim 4, wherein the pressure-regulating valve permits fluid flow into the sealed space through the covering. 6. The dressing of claim 5, wherein the pressure-regulating valve permits fluid flow into the sealed space in response to a maximum reduced pressure in the sealed space. 7. The dressing of claim 1, further comprising a wound interface layer configured to be positioned between the covering and the tissue site. 8. The dressing of claim 7, wherein the wound interface layer comprises a foam member. 9. The dressing of claim 7, wherein the wound interface layer comprises a gauze. 10. The dressing of claim 7, further comprising an absorbent layer configured to be disposed between the wound interface member and the covering. 11. The dressing of claim 10, further comprising a priming fluid in the absorbent layer. 12. The dressing of claim 7, further comprising a priming fluid in the wound interface member. 13. The dressing of claim 1, further comprising an absorbent layer configured to be disposed between the tissue site and the covering. 14. The dressing of claim 1, further comprising: a container disposed between the covering and the tissue site, the container having a weakened portion configured to fail before other portions of the container; anda priming fluid disposed in the container. 15. The dressing of claim 1, further comprising a foam member disposed between the covering and the tissue site, the foam member comprising: a first foam having an aperture;a second foam disposed within the aperture of the first foam; andwherein the first foam is more rigid than the second foam. 16. The dressing of claim 1, further comprising: a first foam member having an annular shape and disposed between the covering and the tissue site; anda second foam member disposed within the first foam member, wherein the first foam member is more rigid than the second foam member. 17. The dressing of claim 1, further comprising: a foam member configured to be disposed between the covering and the tissue site; anda biasing member disposed around the foam member. 18. The dressing of claim 17, wherein the biasing member comprises a bellows. 19. The dressing of claim 1, further comprising a forced-air device associated with the covering configured to force air across the membrane. 20. The dressing of claim 19, wherein the forced-air device comprises a piezoelectric pump, the dressing further comprising a flexible baffling disposed proximate to the covering on a side opposite the tissue site, the flexible baffling configured to direct air across the membrane. 21. The dressing of claim 19, further comprising an inflatable passageway disposed adjacent to the membrane and fluidly coupled to the forced-air device. 22. The dressing of claim 1, wherein the membrane includes a surface having a hydrophilic treatment. 23. The dressing of claim 22, wherein the hydrophilic treatment comprises an ionizing radiation. 24. The dressing of claim 1, further comprising: a foam member configured to be disposed between the tissue site and the covering; anda micro-pump disposed between the foam member and the covering. 25. A method for treating a tissue site with reduced pressure, the method comprising: deploying a foam member proximate to the tissue site;covering the foam member with a covering having an evaporative window to form a sealed space over the foam member; andevaporating liquids in the sealed space through the evaporative window to generate reduced-pressure. 26. The method of claim 25, wherein a priming fluid is disposed in the foam member. 27. The method of claim 25, wherein a one-way valve is associated with the covering and the method further comprises depressing the foam member to remove air through the one-way valve from the sealed space. 28. The method of claim 25, further comprising opening a pressure-regulating valve coupled to the covering in response to a maximum reduced pressure in the sealed space. 29. The method of claim 25, further comprising removing a release liner covering the evaporative window. 30. The method of claim 25, further comprising: disposing a container storing a priming fluid between the covering and the foam member; andrupturing the container to release the priming fluid into the sealed space. 31. The method of claim 25, further comprising forcing air across the evaporative window with a forced-air device. 32. A method of manufacturing a dressing for treating a tissue site, the method comprising: providing a foam member for placing proximate to the tissue site;providing a covering formed with an opening; andassociating a membrane with the opening to form an evaporative window, the membrane being configured to permit liquids to evaporate through the covering. 33. The method of claim 32, further comprising the step of applying a removable release liner over the membrane. 34. The method of claim 32, further comprising introducing a priming fluid into the foam member. 35. The method of claim 32, further comprising disposing a container having a priming fluid on a side of the covering. 36. The method of claim 32, further comprising coupling a pressure-regulating valve to the covering. 37. The method of claim 32, further comprising coupling a one-way valve to the covering. 38. The method of claim 32, further comprising coupling a one-way valve to the covering and coupling a pressure-regulating valve to the covering.
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이 특허에 인용된 특허 (89)
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.
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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.
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