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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0575968 (2014-12-18) |
| 등록번호 | US-9452248 (2016-09-27) |
| 우선권정보 | GB-0325129.5 (2003-10-28) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 16 인용 특허 : 544 |
An apparatus for cleansing wounds, in which wound exudate is removed from a wound bed and selectively cleansed and returned to the wound. The cleansing means removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound heal
An apparatus for cleansing wounds, in which wound exudate is removed from a wound bed and selectively cleansed and returned to the wound. The cleansing means removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The associated wound dressing and cleansing means are conformable to the wound, and may have irrigant fluid circulated from a reservoir by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing.
1. A wound treatment system for the treatment of a wound, comprising: a wound dressing comprising: a substantially flat backing layer comprising a continuous sheet having a proximal, wound-facing face and a distal face, the backing layer capable of forming a relatively fluid-tight seal over the woun
1. A wound treatment system for the treatment of a wound, comprising: a wound dressing comprising: a substantially flat backing layer comprising a continuous sheet having a proximal, wound-facing face and a distal face, the backing layer capable of forming a relatively fluid-tight seal over the wound;a boss fixedly attached to the backing layer at an opening in the backing layer;a permeable polymer film having a proximal, wound facing face and a distal face, wherein the distal face of the permeable polymer film is attached to the proximal face of the backing layer and the proximal face of the permeable polymer film is configured to contact the wound; anda resiliently flexible filler contained between the backing layer and the permeable polymer film;a vacuum pump configured to apply negative pressure to the wound dressing; anda fluid offtake tube connected to the boss and configured to provide fluid communication between the vacuum pump and the wound dressing. 2. The system of claim 1, further comprising a chamber defined between the backing layer and the permeable polymer film. 3. The system of claim 2, the chamber comprising an upper membrane and a lower membrane wherein the resiliently flexible filler is contained and completely enclosed between the upper and lower membranes; and wherein the upper membrane, lower membrane, and filler are positioned between the backing layer and the permeable polymer film. 4. The system of claim 1, wherein the resiliently flexible filler is configured to retain wound exudate. 5. The system of claim 4, wherein the resiliently flexible filler comprises a hydrophilic material. 6. The system of claim 1, the wound dressing further comprising an adhesive, wherein the adhesive is adapted to secure the wound dressing in place and to provide a fluid-tight seal between the wound dressing and the wound. 7. The system of claim 6, the backing layer further comprising a periphery surrounding a central portion, wherein an adhesive is positioned on the proximal face of the backing layer at the periphery; wherein the adhesive is adapted to secure the wound dressing in place and to provide a fluid-tight seal between the wound dressing and the wound,wherein the permeable polymer film is attached to the proximal face of the backing layer at the periphery; andwherein the permeable polymer film is configured so as not to disrupt the relatively fluid-tight seal. 8. The system of claim 1, wherein the vacuum pump is manually operated. 9. The system of claim 1, wherein the backing layer comprises a transparent or translucent material. 10. The system of claim 1, wherein the wound dressing is configured to be disposable after use. 11. A wound treatment system for the treatment of a wound, comprising: a wound dressing comprising: a substantially flat backing layer comprising a continuous sheet having a proximal, wound-facing face and a distal face, the backing layer capable of forming a relatively fluid-tight seal over the wound and bearing an adhesive film to attach it to skin surrounding the wound;a reinforcement fixedly attached to the backing layer on the proximal face at an opening in the backing layer;an upper membrane positioned below the reinforcement; a lower membrane positioned below the upper membrane, the lower membrane attached to the proximal face of the backing layer and configured to contact the wound;a resiliently flexible filler contained between the upper membrane and the lower membrane; andwherein the backing layer, reinforcement, upper membrane, resiliently flexible filler and lower membrane are configured to be simultaneously applied over the wound;a fluid offtake tube passing through the reinforcement to provide fluid communication between a negative pressure source and the wound dressing. 12. The system of claim 11, further comprising a negative pressure source configured to apply negative pressure to the wound dressing. 13. The system of claim 12, further comprising a controller configured to adjust negative pressure applied by the negative pressure source. 14. The system of claim 11, wherein the lower membrane is permeable so that the resiliently flexible filler is in fluid communication with the wound. 15. The system of claim 11, wherein the filler is configured to retain wound exudate. 16. The system of claim 11, wherein the reinforcement is configured to resist deformation under pressure. 17. The system of claim 11, wherein the reinforcement comprises a portion that projects distally from the backing layer configured to receive the fluid offtake tube.
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