# US 10,500,103 B2 · Abdominal wound dressing with application aid > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,103 B2 - Document ID: US10500103B2 - Status: Granted - Kind: B2 - Application number: 13/605,323 - Filed: 2012-09-06 - Published: 2013-09-19 - Granted: 2019-12-10 - Earliest claimed: 2011-09-09 - Assignees: Paul Hartmann AG - Applicants: Pierre Croizat; Axel Eckstein; Comelia Wolf - Inventors: Pierre Croizat; Axel Eckstein; Comelia Wolf - Web page: https://patentgrep.com/patent/US10500103B2 ## CPC - A61F 13/148: {Abdomen bandages or bandaging garments} - 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] - A61M 1/915: {Constructional details of the pressure distribution manifold} - A61M 1/916: {specially adapted for deep wounds} - A61M 2210/1021: Abdominal cavity - 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) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract The invention relates to a wound dressing and to a device for use in negative-pressure wound therapy, in particular for wounds in the abdominal region, and also to methods for producing the device. The wound dressing includes at least one flexible film for application onto the wound bed, more particularly onto exposed internal organs or onto the greater omentum, and furthermore at least one pocket, which is present on the side of the wound dressing that faces away from the wound during use and which simplifies the uniform application and placement of the wound dressing on the wound bed. ## Claims ### Claim 1 A wound dressing (10) for use in negative-pressure wound therapy, in treatment of abdominal wounds, comprising: i) a first flexible film (1) that forms a planar surface having a first and a second side, with the first side being provided for application on a wound bed (13), and with the first flexible film (1) furthermore having a multiplicity of openings (6) distributed evenly across the first flexible film (1) and which are capable of enabling fluid communication through the first flexible film (1); and ii) at least three pockets (25), each of the at least three pockets include an opening (27) that predominantly is directed toward a center of the wound dressing (10), the at least three pockets (25) and the openings (27) are present on and above an uppermost surface of the first flexible film (1) that faces away from a wound during use and simplifies a uniform application and placement of the wound dressing (10) on the wound bed (13), wherein there is no additional conduit on the second side of the first flexible film (1). ### Claim 2 (depends on 1) The wound dressing (10) according to claim 1, wherein the openings (6) present in the first flexible film (1) have a three-dimensional shape that is conical or cylindrical to the greatest possible extent and, as a result of this, the film (1) has a smooth side and a roughened side opposite to the smooth side. ### Claim 3 (depends on 2) The wound dressing (10) according to claim 2, wherein the the smooth side of the first film (1) is the side that is configured to face the wound, and the side of the first film (1) configured to face away from the wound during use is formed by the roughened side. ### Claim 4 (depends on 1) The wound dressing (10) according to claim 1, wherein the openings (27) of the at least three pockets (25) form a conical shape. ### Claim 5 (depends on 1) The wound dressing (10) according to claim 1, wherein the at least three pockets (25) are formed by adhesive bonding, thermal welding, pressing or ultrasound welding, of an areal material section on the side of the wound dressing (10) that faces away from the wound during use. ### Claim 6 (depends on 1) The wound dressing (10) according to claim 1, wherein the at least three pockets (25) are present on the second side of the first flexible film (1) such that the openings (27) of the at least three pockets (25) on the uppermost surface are capable of being fully exposed to the user and fully accessible by the user. ### Claim 7 (depends on 1) The wound dressing (10) according to claim 1, wherein the first flexible film (1) comprises two or more separate films applied together. ### Claim 8 (depends on 1) The wound dressing (10) according to one of claim 1, wherein the at least three pockets are formed by folding back a film portion of the wound dressing. ### Claim 9 (depends on 1) The wound dressing (10) according to claim 1, wherein the sum of the open area of the openings (6) present in the first flexible film (1) is at least 0.1% and at most 25% of an areal extent of the first flexible film (1). ### Claim 10 (depends on 1) The wound dressing (10) according to claim 1, wherein the pockets (25) are arranged on one or more concentric circles which encircle the center point of the wound dressing and wherein the pockets are present on each circle distributed with a uniform spacing between one another. ### Claim 11 (depends on 1) The wound dressing (10) of claim 1, wherein the multiplicity of openings (6) is present in an amount of from −150 to 190 openings per cm2 or 260 to 300 openings per cm2. ### Claim 12 (depends on 1) The wound dressing (10) of claim 1, wherein the multiplicity of openings (6) are holes wherein the sum of the area of the holes is at least 0.5% and at most 25% of an areal extent of the first flexible film (1). ### Claim 13 (depends on 1) The wound dressing (10) according to claim 1, wherein the at least three pockets (25) substantially have a form of a rectangle, a trapezium, a semi-circle, a triangle, an annulus or an annular sector. ### Claim 14 (depends on 1) The wound dressing (10) according to claim 1, furthermore comprising one or more liquid-permeable layers (11) fabricated from a porous polymer foam, for application on the side of the wound dressing (10) that faces away from the wound during use. ### Claim 15 (depends on 1) The wound dressing (10) of claim 1 wherein the wound bed (13) is exposed internal organs or a greater omentum. ### Claim 16 (depends on 1) The wound dressing (10) of claim 1 wherein the at least three pockets (25) are situated at or adjacent to a peripheral edge of the wound dressing. ### Claim 17 (depends on 1) The wound dressing (10) of claim 1 which further comprises a negative pressure port and/or functional connection to a negative pressure source. ### Claim 18 (depends on 1) The wound dressing (10) of claim 1 wherein the at least one pocket (25) has a lateral seam. ### Claim 19 (depends on 1) The wound dressing (10) of claim 1, wherein the at least three pockets (25) are uniformly spaced from each other on the planar surface of the first flexible film (1) that is configured to face away from the wound, and are symmetrically placed on the wound dressing (10). ### Claim 20 A device (40) for use in negative-pressure wound therapy, for treatment of abdominal wounds, comprising: a) a wound dressing (10) which includes: i) a first flexible film (1) that forms a planar surface having a first and a second side, with the first side being provided for application on a wound bed (13), and with the first flexible film (1) furthermore having a multiplicity of openings (6) distributed evenly across the first flexible film (1) and which are capable of enabling fluid communication through the first flexible film (1); and ii) at least three pockets (25), which include an opening (27) that predominantly is directed toward a center of the wound dressing (10), the at least three pockets (25) and the openings (27) are present on and opened above an uppermost surface-of the first flexible film (1) that faces away from a wound during use and simplifies the uniform application and placement of the wound dressing (10) on the wound bed (13), characterized in that there is no additional conduit present which is applied to the second side of the first film (1); and b) an airtight cover material (16) for air-impermeable closure of a wound and wound surroundings, which air-impermeable enclosure provides a wound space formed thereby, and a negative-pressure port, which can be applied to the air-tight cover material (16) on a side that faces away from the wound, for a functional connection of the wound space to a negative-pressure source (21) situated outside of the airtight cover material (16) such that negative pressure can be set in the wound space and liquids can be suctioned out of the wound space. ### Claim 21 (depends on 20) The device (40) of claim 20 wherein the wound bed (13) is exposed internal organs or a greater omentum.