# US 2019/0167483 A1 · Replaceable Dressing And Method For Viewing A Tissue Site > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167483 A1 - Document ID: US20190167483A1 - Status: Published application - Kind: A1 - Application number: 16/302,563 - Filed: 2017-05-10 - Published: 2019-06-06 - Earliest claimed: 2016-05-20 - Assignees: KCI Licensing, Inc. - Applicants: KCI Licensing, Inc. - Inventors: Tyler H. SIMMONS - Web page: https://patentgrep.com/patent/US20190167483A1 ## 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 13/0266: {especially adapted for wound covering/occlusive dressings} - A61M 1/90: {Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing} - 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 Provided are systems, dressings, and methods suitable for treating a tissue site, such as an incision or linear wound. The systems, dressings, and methods relate to a dressing assembly that may include a dressing bolster, sealing members that cover the tissue site and contain the dressing bolster, and a dressing attachment device. The dressing assembly also includes a base layer comprising a sealing member and a base attachment device for releasably coupling the base layer to the epidermis, wherein the dressing attachment device that may releasably coupled to the sealing member base layer. The dressing assembly may also include sealing ring that may be adapted to provide a fluid seal around the tissue site, and to absorb fluids from the tissue site. Other systems, apparatuses, and methods are disclosed. ## Claims ### Claim 1 A system for treating a tissue site, comprising: a dressing assembly, comprising: a dressing bolster having a first side and a second side, a first sealing member covering the first side of the dressing bolster, a second sealing member having a first side and a second side including a treatment aperture extending through the second sealing member, a first portion of the first side being coupled to the first sealing member, and a first attachment device configured to be coupled to the second side of the second sealing member, wherein the first sealing member, the second sealing member, and the first attachment device are configured to provide a sealed space that covers the tissue site; and a base layer, comprising: a third sealing member having a first side and a second side including a viewing aperture extending through the third sealing member and configurable to surround the tissue site, wherein the first attachment device is adapted to be releasably coupled to the first side of the third sealing member, and a second attachment device configured to be coupled to the second side of the third sealing member and adapted to be releasably coupled to tissue around the tissue site as defined by the viewing aperture; and a reduced-pressure source configured to be coupled in fluid communication with the sealed space. ### Claim 2 (depends on 1) The system of claim 1, wherein the second attachment device has a peel strength and the first attachment device has a peel strength, and wherein the peel strength of the second attachment device is greater than the peel strength of the first attachment device. ### Claim at position 3 -4. (canceled) ### Claim 4 (depends on 1) The system of claim 1, wherein the second attachment device has a peel strength and the first attachment device has a peel strength, and wherein a ratio of the peel strength of the second attachment device to the peel strength of the first attachment device is greater than about 2.0. ### Claim 5 (depends on 1) The system of claim 1, wherein the first attachment device is a first adhesive and the second attachment device is a second adhesive. ### Claim at position 6 -9. (canceled) ### Claim 10 (depends on 1) The system of claim 1, wherein the dressing assembly further comprises a sealing ring disposed adjacent a treatment portion of the dressing bolster. ### Claim 11 (canceled) ### Claim 12 (depends on 10) The system of claim 10, wherein the dressing bolster comprises at least two discrete members placed within abutting edges, and wherein the sealing ring comprises at least two discrete members that have coalesced to form an integral member. ### Claim 13 (depends on 10) The system of claim 10, wherein the sealing ring includes a viewing aperture configured to be positioned around a circumference of the treatment portion of the dressing bolster. ### Claim 14 (depends on 10) The system of claim 10, wherein the sealing ring is configured to be positioned at a lateral edge of the treatment portion of the dressing bolster. ### Claim 15 (depends on 1) The system of claim 1, wherein the dressing assembly further comprises a comfort layer coupled to the second side of the dressing bolster, and wherein at least a portion of the comfort layer is exposed and configured to be positioned directly against the tissue site. ### Claim 16 (canceled) ### Claim 17 (depends on 15) The system of claim 15, wherein the dressing assembly further comprises a sealing ring disposed adjacent a treatment portion of the dressing bolster, the sealing ring being configured to surround the tissue site and the portion of the comfort layer that is exposed. ### Claim 18 (depends on 17) The system of claim 17, wherein the sealing ring comprises a sealing material laminated onto a drape ring and an adhesive coupling the drape ring to the comfort layer or to the dressing bolster. ### Claim 19 (depends on 17) The system of claim 17, wherein the sealing ring is coupled to at least a portion of the comfort layer. ### Claim 20 (depends on 1) The system of claim 1, wherein the first side of the second sealing member includes a second portion covering a portion of the second side of the dressing bolster to form a treatment portion on the second side of the dressing bolster exposed through the treatment aperture. ### Claim at position 18 -50. (canceled) ### Claim 51 A dressing assembly for applying to a tissue site, comprising: a dressing bolster having a first side and a second side; a sealing member having a first side and a second side configured to cover the dressing bolster and to create a sealed space over the tissue site; a dressing attachment device configured to be coupled to the second side of the sealing member; a base member having a first side and a second side, the first side adapted to be releasably coupled to the sealing member by the dressing attachment device; and a base attachment device configured to be coupled to the second side of the base member and adapted to be releasably coupled to tissue surrounding the tissue site. ### Claim at position 20 -55. (canceled) ### Claim 56 (depends on 51) The dressing assembly of claim 51, wherein the base member further includes a viewing aperture extending through the base member. ### Claim 57 (depends on 51) The dressing assembly of claim 51, wherein the base member further includes a viewing window extending through the base member. ### Claim 58 (depends on 51) The dressing assembly of claim 51, further comprising a sealing ring comprising an absorbent and having a first side and a second side, the first side of the sealing ring coupled to the second side of the dressing bolster and positioned around a circumference of the dressing bolster, at least a portion of the second side of the dressing bolster being exposed. ### Claim at position 24 -60. (canceled) ### Claim 61 (depends on 58) The dressing assembly of claim 58, wherein the sealing ring is positioned at a lateral edge of the dressing bolster. ### Claim at position 26 -63. (canceled) ### Claim 64 (depends on 51) The dressing assembly of claim 51, wherein the dressing assembly further comprises a comfort layer coupled to the second side of the dressing bolster, and wherein at least a portion of the comfort layer is exposed and configured to be positioned directly against the tissue site. ### Claim at position 28 -66. (canceled) ### Claim 67 (depends on 51) The dressing assembly of claim 51, wherein the dressing bolster has longitudinal cuts and lateral cuts disposed in the first side of the dressing bolster, the longitudinal cuts positioned normal to the lateral cuts. ### Claim 68 (depends on 51) The dressing assembly of claim 51, further comprising a bottom release member in contact with the second side of the base member by the base attachment device, the bottom release member configured to cover the base member and to be removable from the base member. ### Claim at position 31 -70. (canceled) ### Claim 71 A method for treating a tissue site, comprising: disposing a dressing assembly proximate to the tissue site, the dressing assembly comprising a dressing bolster, a sealing member including a dressing attachment device, a base member including a base attachment device, and a sealing ring coupled to the dressing bolster; positioning the base attachment device on tissue surrounding the tissue site to releasably coupled the base member to the tissue surrounding the tissue site; covering the dressing bolster and the tissue site with the sealing member to releasably couple the dressing attachment device to the base member to form a sealed space between the sealing member and the tissue site; and extracting fluid from the tissue site into the dressing assembly. ### Claim 72 (depends on 71) The method of claim 71, further comprising absorbing the fluid from the tissue site into the sealing ring. ### Claim 73 (depends on 71) The method of claim 71, further comprising removing the sealing member from the base member without removing the base member from the tissue surrounding the tissue site. ### Claim 74 (depends on 73) The method of claim 73, further comprising replacing the sealing member on the base member after inspecting the tissue site through a viewing aperture. ### Claim 75 (depends on 71) The method of claim 71, wherein extracting the fluid comprises applying reduced pressure to the sealed space. ### Claim 76 (depends on 71) The method of claim 71, further comprising communicating the fluid in a lateral direction within the dressing assembly toward the sealing ring. ### Claim at position 38 -79. (canceled) ### Claim 80 (depends on 71) The method of claim 71, wherein the sealing ring is positioned at a lateral edge of the dressing bolster and configured to surround the tissue site.