Abdominal treatment systems, delivery devices, and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-001/00
A61M-027/00
출원번호
US-0043987
(2011-03-09)
등록번호
US-8469935
(2013-06-25)
발명자
/ 주소
Simmons, Tyler
Sammons, Alexander G.
출원인 / 주소
KCI Licensing, Inc.
인용정보
피인용 횟수 :
2인용 특허 :
88
초록▼
A reduced-pressure abdominal treatment device is presented that has a plurality of liquid-impermeable layers with a foam spacer between two of the liquid-impermeable layers. The plurality of liquid-impermeable layers have a coextensive area A1. The foam spacer has a plan-view area A2. A2 is less tha
A reduced-pressure abdominal treatment device is presented that has a plurality of liquid-impermeable layers with a foam spacer between two of the liquid-impermeable layers. The plurality of liquid-impermeable layers have a coextensive area A1. The foam spacer has a plan-view area A2. A2 is less than 80% of A1 (i.e., A20.8A1). The foam spacer is configured such that, under reduced pressure, a target fluid removal zone experiences reduced-pressure vectors over an angle theta (θ) that is typically 360 degrees for a majority of locations in the target fluid removal zone. Applying 360 degrees of reduced pressure helps avoid blockage. The plurality of liquid-impermeable layers may be bonded for various effects. Other devices, systems, and methods are disclosed.
대표청구항▼
1. An abdominal treatment device for distributing reduced pressure to a tissue site, the abdominal treatment device comprising: a plurality of liquid-impermeable layers wherein the liquid-impermeable layers are at least partially fenestrated;a micro-channel space between the liquid-impermeable layer
1. An abdominal treatment device for distributing reduced pressure to a tissue site, the abdominal treatment device comprising: a plurality of liquid-impermeable layers wherein the liquid-impermeable layers are at least partially fenestrated;a micro-channel space between the liquid-impermeable layers;a foam spacer disposed between the liquid-impermeable layers, wherein the foam spacer comprises arc members interconnected to form at least one window; andspacer bonds coupling at least two of the liquid-impermeable layers and disposed along a peripheral edge of the window;wherein the liquid-impermeable layers have a coextensive area A1;wherein the foam spacer has a plan-view area A2;wherein A2 is less than 80% of A1; andwherein the foam spacer is configured such that, under reduced pressure, a location in the micro-channel space experiences reduced-pressure vectors over an angle theta (θ) that is at least 300 degrees. 2. The abdominal treatment device of claim 1, wherein the angle theta (θ) is 360 degrees for more than 70 percent (70%) of locations in the micro-channel space. 3. The abdominal treatment device of claim 1, wherein the spacer bonds comprise a stitch bond. 4. The abdominal treatment device of claim 1, wherein the arc members are elliptical members. 5. A system for treating an abdominal cavity with reduced pressure, the system comprising: an abdominal treatment device comprising: a plurality of liquid-impermeable layers, wherein the plurality of liquid-impermeable layers has have a coextensive area A1 and are fenestrated,a micro-channel space between the liquid-impermeable layers;a foam spacer disposed between at least two layers of the plurality of liquid-impermeable layers, the foam spacer having a plan-view area A2 and comprising arc members interconnected to form at least one window, andspacer bonds coupling the two layers of the plurality of liquid impermeable layers and disposed along a peripheral edge of the window,wherein A2 is less than 80% of A1, andwherein the foam spacer is configured such that, under reduced pressure, a location in the micro-channel space experiences reduced-pressure vectors over an angle theta (θ) that is at least 300 degrees;a reduced-pressure source fluidly coupled to the abdominal treatment device. 6. The system of claim 5, wherein the angle theta (θ) is 360 degrees for more than 70 percent of locations in the micro-channel space. 7. The system of claim 5, further comprising a reduced-pressure conduit and a reduced-pressure connector subsystem for fluidly coupling the reduced-pressure source to the abdominal treatment device. 8. The system of claim 5, wherein the spacer bonds comprise a solid bond. 9. The system of claim 5, wherein the arc members are elliptical members. 10. The system of claim 5, wherein the arc members are concentric circular members. 11. A method of manufacturing an abdominal treatment device, the method comprising the steps of: providing a plurality of liquid-impermeable layers that are fenestrated;placing the plurality of liquid-impermeable layers adjacent one another, wherein the plurality of liquid-impermeable layers has have a coextensive area A1;disposing a foam spacer between at least two layers of the plurality of liquid-impermeable layers, the foam spacer comprising arc members interconnected to form at least one window;bonding at least two of the liquid-impermeable layers along a peripheral edge of the window to form a micro-channel space between the liquid-impermeable layers;wherein the foam spacer has a plan-view area A2 and A2 is less than 80% of A1;wherein the foam spacer is configured such that, under reduced pressure, a location in the micro-channel space experiences reduced-pressure vectors over an angle theta (θ) that is 3-60 at least 300 degrees. 12. The method of manufacturing an abdominal treatment device of claim 11, wherein the angle theta (θ) is 360 degrees for more than 70 percent of locations in the micro-channel space. 13. The method of manufacturing an abdominal treatment device of claim 11, wherein the arc members are elliptical members. 14. A method of treating a tissue site in an abdominal cavity, the method comprising the steps of: opening the abdominal cavity;deploying within the abdominal cavity an abdominal treatment delivery device;deploying a reduced-pressure connector subsystem;deploying a sealing member to form a fluid seal over the abdominal cavity;fluidly coupling the reduced-pressure connector subsystem to a reduced-pressure source;activating the reduced-pressure source; andwherein the abdominal treatment delivery device comprises: a plurality of liquid-impermeable layers, wherein the plurality of liquid-impermeable layers has have a coextensive area A1 and are fenestrated;a micro-channel space between the liquid-impermeable layers;a foam spacer disposed between at least two layers of the plurality of liquid-impermeable layers, the foam spacer having a plan-view area A2 and comprising arc members interconnected to form at least one window; andspacer bonds disposed between the two layers of the plurality of liquid impermeable layers along a peripheral edge of the window;wherein A2 is less than 80% of A1;wherein the foam spacer is configured such that, under reduced pressure, a location in the micro-channel space experiences reduced-pressure vectors over an angle theta (θ) that is at least 300 degrees.
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