Systems and methods for treating a tissue site with reduced pressure involving a reduced-pressure interface having a cutting element
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/00
A61M-027/00
A61M-025/00
A61F-013/00
출원번호
US-0554620
(2012-07-20)
등록번호
US-8758328
(2014-06-24)
발명자
/ 주소
Locke, Christopher Brian
Robinson, Timothy Mark
Tout, Aidan Marcus
출원인 / 주소
KCI Licensing, Inc.
인용정보
피인용 횟수 :
3인용 특허 :
86
초록▼
Systems and methods for a reduced-pressure interface for providing reduced pressure through a sealing member to a distribution manifold includes a housing having a flange portion and a cavity wall portion such that the cavity wall portion forms a cavity having a tissue-facing cavity opening. A condu
Systems and methods for a reduced-pressure interface for providing reduced pressure through a sealing member to a distribution manifold includes a housing having a flange portion and a cavity wall portion such that the cavity wall portion forms a cavity having a tissue-facing cavity opening. A conduit port is coupled to the cavity wall and has a conduit aperture, such that the conduit port is adapted to receive a reduced-pressure delivery conduit. An attachment device is coupled to a tissue-facing side of the flange portion of the housing such that the attachment device couples the housing to the sealing member. Additionally, a cutting element is at least temporarily coupled to the housing proximate to the tissue-facing cavity opening such that the cutting element is adapted to form an aperture in the sealing member when the cutting element is driven into the sealing member with a driving force.
대표청구항▼
1. A reduced-pressure interface for providing reduced pressure through a sealing member to a distribution manifold, the reduced-pressure interface comprising: a housing having a flange portion and a cavity wall portion;wherein the cavity wall portion forms a cavity having a tissue-facing cavity open
1. A reduced-pressure interface for providing reduced pressure through a sealing member to a distribution manifold, the reduced-pressure interface comprising: a housing having a flange portion and a cavity wall portion;wherein the cavity wall portion forms a cavity having a tissue-facing cavity opening;a conduit port coupled to the cavity wall and having a conduit aperture, wherein the conduit port is adapted to receive a reduced-pressure delivery conduit;an attachment device coupled to a tissue-facing side of the flange portion of the housing, the attachment device for coupling the housing to the sealing member; anda cutting element coupled to the housing proximate to the tissue-facing cavity opening, the cutting element configured to form an aperture in the sealing member when the cutting element is driven into the sealing member with a driving force. 2. The reduced-pressure interface of claim 1, wherein the cutting element comprises: a base member;a stylus member coupled to the base member, wherein the stylus member has a leading edge and is configured to perforate the sealing member to form an access aperture in the sealing member and to apply a tensile force on the access aperture. 3. The reduced-pressure interface of claim 1, wherein a piercing length (Lp) of the cutting element is less than 3 centimeters. 4. The reduced-pressure interface of claim 2, wherein the base member is sized and configured to form an interference fit with the tissue-facing cavity opening, whereby the cutting element is releasably coupled to the housing. 5. The reduced-pressure interface of claim 2, wherein the stylus member has a first blade and a second blade configured to make orthogonal cuts in the sealing member. 6. The reduced-pressure interface of claim 1, wherein the attachment device is an adhesive. 7. The reduced-pressure interface of claim 1, wherein the cutting element is formed from a water soluble material. 8. The reduced-pressure interface of claim 7, wherein the water soluble material comprises at least one of the following: Polyvinyl alcohol (PVOH), polyvinyl pyrrolidone, hydroxyl and carboxyl modified cellulose, hydroxyl and carboxyl modified acrylics, starch, sugars (sucrose, glucose, fructose), weak acids (tartaric, citric, malic), salts (sodium chloride, sodium carbonate, sodium bicarbonate), polyethylene oxide (PEO), and polyethylene glycol (PEG). 9. A reduced-pressure interface comprising: a housing having a collapsible cavity wall portion and a conduit aperture;a conduit adapter having a protrusion for engaging a primary lumen of a reduced-pressure conduit;an adapter flange coupled to the conduit adapter and positioned on an exterior of the cavity wall;a tube extension coupled to the adapter flange and configured to extend through the conduit aperture; anda cutting element comprising a base member and a stylus member coupled to the base member;wherein the base member is coupled to the tube extension and the stylus member comprises a first blade and a second blade configured to make an orthogonal cut. 10. A system for treating a tissue site with reduced pressure, the system comprising: a distribution manifold for placing proximate to the tissue site;a sealing member for covering the distribution manifold to form a sealed space;a reduced-pressure interface for providing reduced pressure through the sealing member to the distribution manifold;a reduced-pressure source;a reduced-pressure delivery conduit for fluidly coupling the reduced-pressure source to the reduced-pressure interface;wherein the reduced-pressure interface comprises: a housing having a flange portion and a cavity wall portion;wherein the cavity wall portion forms a cavity having a tissue-facing cavity opening;a conduit port coupled to the cavity wall and having a conduit aperture, wherein the conduit port is adapted to receive the reduced-pressure delivery conduit;an attachment device coupled to a tissue-facing side of the flange portion of the housing, the attachment device for coupling the housing to the sealing member; anda cutting element coupled to the housing proximate to the tissue-facing cavity opening, the cutting element comprises a base member and a stylus member coupled to the base member, wherein the stylus member has a leading edge and is configured to perforate the sealing member to form an access aperture in the sealing member and to apply a tensile force on the access aperture. 11. The system of claim 10, wherein the distribution manifold has a thickness greater than T when subject to reduced pressure, wherein the cutting element has a piercing length (Lp), and wherein Lp
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