# US 2014/0155848 A1 · Wound barrier pad > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155848 A1 - Document ID: US20140155848A1 - Status: Published application - Kind: A1 - Application number: 14/104,145 - Filed: 2013-12-12 - Published: 2014-06-05 - Earliest claimed: 2011-07-28 - Inventors: Matthew D. Antalek - Web page: https://patentgrep.com/patent/US20140155848A1 ## CPC - A61F 13/05: specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT] - A61F 13/00063: {comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic (drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00)} - A61F 13/02: Adhesive bandages or dressings - A61F 13/0226: {characterised by the support layer} - A61F 13/023: {wound covering film layers without a fluid retention layer} - A61F 2013/15024: {for protecting the body against ulcers} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A wound barrier pad is provided having a housing with a housing opening. The housing has a truncated conical shape. A base plate with an opening is disposed in the housing, and the housing is filled with a fluid or padding. The wound barrier pad may also be embodied to have a cylindrical shape, a rectangular shape or other shape. The wound barrier pad may be incorporated into a garment. In another embodiment the wound barrier pad includes a ring and an adhesive such that the wound barrier pad may be directly adhered to the patient, thus eliminating the need for the garment. In another embodiment there is a wound barrier device having a pad assembly and an anti-sheer member. The anti-shear member reduces frictional forces on the skin of a patient. In another embodiment a wound barrier assembly is provided for applying a negative pressure to a wound. ## Claims ### Claim 1 A wound barrier assembly comprising: a) a housing having: opposed first and second walls; a surrounding wall extending from the first wall to the second wall; a surrounding internal wall extending from the first wall to the second wall wherein the surrounding internal wall defines a housing opening; a housing interior defined by the opposing first and second walls and the surrounding wall and the surrounding internal wall; padding disposed in the housing interior; b) a negative pressure generating device capable of generating a suction and having a holding tank and a suction tube with opposed first and second suction tube ends wherein the first suction tube end is connected to the negative pressure generating device and is in fluid communication with the holding tank and wherein the second suction tube end is joined to a disc component that defines a disc opening; c) a drape having a drape opening and the disc component is adhered to the drape such that the drape opening is in fluid communication with the disc opening and the drape is capable of being adhered to a patient such that upon activation of the negative pressure generating device fluid is suctioned from a wound; and, wherein the housing is adhered to the drape such that the suction tube extends through the housing opening. ### Claim 2 (depends on 1) The wound barrier assembly according to claim 1 further including a negative pressure dressing having foam arms that extend radially from a center of the negative pressure dressing wherein the foam arms are for providing fluid passages such that the foam arms are in fluid communication with the negative pressure generating device. ### Claim 3 (depends on 2) The wound barrier assembly according to claim 2 further including a base plate having a base plate opening disposed in the housing. ### Claim 4 (depends on 1) The wound barrier assembly according to claim 1 wherein the housing is in the form of a rectangular shaped wound barrier pad. ### Claim 5 (depends on 1) The wound barrier assembly according to claim 1 wherein the housing has a truncated conical shape. ### Claim 6 (depends on 1) The wound barrier assembly according to claim 1 wherein the padding is made from at least one of the following materials: resilient materials, foams, neoprene, resilient foams that return to their original shape after having been deformed, and fluids. ### Claim 7 (depends on 1) The wound barrier pad according to claim 1 wherein the housing is made from at least one of the following materials: woven and nonwoven fabrics, natural or synthetic fabrics, rubber, and plastic. ### Claim 8 (depends on 6) The wound barrier pad according to claim 6 wherein the padding and the housing are impregnated with silver particles ### Claim 9 A wound barrier assembly comprising: a) a negative pressure generating device capable of generating a suction and having a holding tank and a suction tube with opposed first and second suction tube ends wherein the first suction tube end is connected to the negative pressure generating device and is in fluid communication with the holding tank and wherein the second suction tube end is joined to a disc component that defines a disc opening; b) a drape having a drape opening and the disc component is adhered to the drape such that the drape opening is in fluid communication with the disc opening and the drape is capable of being adhered to a patient such that upon activation of the negative pressure generating device fluid is suctioned from a wound and wherein the housing is adhered to the drape such that the suction tube extends through the housing opening; c) an anti-shear pad having a pad assembly, wherein the pad assembly includes: an outer layer having opposed first and second outer layer surfaces and the outer layer defines an outer layer opening; a center member having opposed first and second center member surfaces and an internal surrounding surface that defines a center member opening in the center member; a cap having opposed first and second cap surfaces and the cap defines a cap opening; a first adhesive; and, wherein the cap is adhered to the second outer layer surface of the outer layer with the first adhesive, and the second outer layer surface is adhered to the first center member surface with the first adhesive such that the cap is held between the outer layer and center member and the cap is positioned such that the center member opening leads to the cap and the suction tube extends through the outer layer opening, the center member opening and the cap opening. ### Claim 10 (depends on 9) The wound barrier assembly according to claim 9 further including a negative pressure dressing having foam arms that extend radially from a center of the negative pressure dressing wherein the foam arms are for providing fluid passages such that the foam arms are in fluid communication with the negative pressure generating device. ### Claim 11 (depends on 9) The wound barrier assembly according to claim 9 wherein the wound barrier device further includes an anti-shear member and a second adhesive and wherein the second adhesive joins the second center member surface to the anti-shear member. ### Claim 12 (depends on 11) The wound barrier device according to claim 11 wherein the anti-shear member is made of a low friction material and defines an anti-shear member opening that is axially aligned with the center member opening and the suction tube extends through the anti-shear member. ### Claim 13 (depends on 11) The wound barrier device according to claim 11 wherein the anti-shear member is a flexible bladder filled with a fluid and defines a leak-proof central bladder opening that is axially aligned with the center member opening. ### Claim 14 (depends on 11) The wound barrier device according to claim 11 wherein the anti-shear member is a breathable foam pad having opposed first and second breathable sides that are made of a low friction plastic material having apertures and, and a breathable foam pad opening is defined in the breathable foam pad and the suction tube extends through the breathable foam pad opening. ### Claim 15 (depends on 10) The wound barrier device according to claim 10 wherein the outer layer and the center member are made of foam and impregnated with silver. ### Claim 16 (depends on 10) The wound barrier device according to claim 10 wherein the cap is made of a resilient material and upon the application of a force to the cap the cap is movable from relaxed cap position to a flexed cap position. ### Claim 17 (depends on 10) The wound barrier device according to claim 10 wherein the outer layer, the cap, and the center member are together movable from an anti-shear pad un-flexed position to an anti-shear pad flexed position, and when in the anti-shear pad flexed position the second outer layer surface, the second cap surface, and the second center member surface are convex. ### Claim 18 A method of treating a wound comprising the acts of: a) providing a housing having: opposed first and second walls; a surrounding wall extending from the first wall to the second wall; a surrounding internal wall extending from the first wall to the second wall wherein the surrounding internal wall defines a housing opening; a housing interior defined by the opposing first and second walls and the surrounding wall and the surrounding internal wall; padding disposed in the housing interior; b) providing a negative pressure generating device capable of generating a suction and having a holding tank and a suction tube with opposed first and second suction tube ends and connecting the first suction tube end is to the negative pressure generating device such that it is in fluid communication with the holding tank and joining the second suction tube end to a disc component that defines a disc opening; c) providing a drape having a drape opening and adhering the disc component to the drape such that the drape opening is in fluid communication with the disc opening and the drape is capable of being adhered to a patient such that upon activation of the negative pressure generating device fluid is suctioned from a wound; and, adhering the housing to the drape such that the suction tube extends through the housing opening and activating the negative pressure generating device.