# US 2019/0167866 A9 · Methods And Devices For Applying Closed Incision Negative Pressure Wound Therapy > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167866 A9 - Document ID: US20190167866A9 - Status: Published application - Kind: A9 - Application number: 15/134,199 - Filed: 2016-04-20 - Published: 2019-06-06 - Earliest claimed: 2009-04-10 - Assignees: KCI Licensing, Inc. - Applicants: KCI Licensing, Inc. - Inventors: Dean HU; Kenton FONG; Moshe PINTO; Kenneth WU; Craig MC GREEVY; Brendan DONOHOE - Web page: https://patentgrep.com/patent/US20190167866A9 ## 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] - A61M 1/743: {by changing the cross-section of the line, e.g. flow regulating valves (A61M1/7413 takes precedence)} - A61M 1/804: {using Laval or Venturi jet pumps} - A61M 1/882: {Draining devices provided with means for releasing antimicrobial or gelation agents in the drained fluid} - A61M 1/915: {Constructional details of the pressure distribution manifold} - A61M 1/962: {having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction} - A61F 2013/00536: {for draining or irrigating wounds} - A61F 2013/00646: {Medication patches, e.g. transcutaneous} - A61M 1/98: {Containers specifically adapted for negative pressure wound therapy} - A61M 2205/0216: Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking - 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 A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure, or space between it and the surface of a patient, by forming an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision. ## Claims ### Claim 1 A system to treat an area of tissue trauma, the system comprising: a sealant structure comprising an adhesive configured to form a sealed space around the area of tissue trauma a contraction limiting structure configured to limit an amount of contraction of the sealant structure; and an elastic element configured to exert a force on tissue adjacent to the area of tissue trauma to relieve tension on the area of tissue trauma. ### Claim 2 (depends on 1) The system of claim 1, further comprising a carrier structure removably coupled to the sealant structure, wherein the carrier structure is configured to maintain the sealant structure in a stretched state when the carrier structure is coupled to the sealant structure. ### Claim 3 (depends on 1) The system of claim 1, further comprises at least one stretch limiting element coupled to the sealant structure, and wherein the at least one stretch limiting element is configured to limit an amount of stretch of at least a portion of the elastic element. ### Claim 4 (depends on 3) The system of claim 3, wherein the at least one stretch limiting element is configured to transition from an initial state that permits a first amount of stretch of the elastic element to a second state that permits a second amount of stretch of the elastic element. ### Claim 5 (depends on 4) The system of claim 4, wherein the at least one stretch limiting element is configured to transition to one or more intermediate states between the first state and the second state, and wherein each of the one or more intermediate states permits an intermediate amount of stretch that is between the first amount of stretch and the second amount of stretch. ### Claim 6 (depends on 3) The system of claim 3, wherein the at least one stretch limiting element comprises at least one elongated element configured to stretch to a maximum length along a long axis of the elongated element and resist stretching of the elastic element past a distance limit. ### Claim 7 (depends on 1) The system of claim 1, wherein the elastic element is configured to contract in a direction opposite to a direction of stretching. ### Claim 8 (depends on 2) The system of claim 2, wherein the carrier structure comprises a set of ribs configured to provide rigidity to the sealant structure when the carrier structure is coupled to the sealant structure. ### Claim 9 (depends on 1) The system of claim 1, wherein the elastic element comprises a plurality of tabs configured to permit an application of a force to the elastic element to stretch the elastic element. ### Claim 10 (depends on 1) The system of claim 1, wherein the elastic element is configured to exert the force onto the tissue adjacent to the area of tissue trauma in response to being directly attached to the tissue adjacent to the area of tissue trauma. ### Claim 11 (depends on 1) The system of claim 1, further comprising at least one stretch limiting element, wherein the at least one stretch limiting element comprises an inelastic member having a first end attached to a first region of the elastic element and a second end attached to a second end of the elastic element, and wherein the first end and the second end are configured to be positioned on opposing sides of the area of tissue trauma. ### Claim 12 (depends on 1) The system of claim 1, further comprising: a contact layer that is configured to be positioned within the sealed space in direct contact with the area of tissue trauma. ### Claim 13 (depends on 1) The system of claim 1, further comprising at least one force control element configured to control an amount of force that is applied by the elastic element to the tissue adjacent to the area of tissue trauma. ### Claim 14 (depends on 1) The system of claim 1, further comprising: at least one force control element configured to control an amount of force that is applied by the elastic element to the tissue adjacent to the area of tissue trauma; and a contact layer that is configured to be positioned within the sealed space and is configured to be in direct contact with the area of tissue trauma. ### Claim 15 A system to treat an area of tissue trauma, the system comprising: a sealant structure comprising an upper surface, a lower surface, and an adhesive, the sealant structure configured to form a sealed space around the area of tissue trauma; a suction source configured to be in fluid communication with the sealed space; and an elastic element configured to attach to tissue adjacent to the area of tissue trauma and exert a force on the tissue adjacent to the area of tissue trauma to relieve tension on the area of tissue trauma, and wherein the elastic element comprises a plurality of tabs configured to permit an application of a force to the elastic element to stretch the elastic element. ### Claim 16 (depends on 15) The system of claim 15, further comprising a carrier structure removably coupled to the sealant structure, wherein the carrier structure is configured to maintain the sealant structure in a stretched state when the carrier structure is coupled to the sealant structure. ### Claim 17 (depends on 15) The system of claim 15, further comprising a force control element, and wherein the force control element comprises at least one stretch limiting element coupled to the sealant structure, and wherein the at least one stretch limiting element is configured to limit an amount of stretch of at least a portion of the elastic element. ### Claim 18 (depends on 17) The system of claim 17, wherein the at least one stretch limiting element is configured to transition from an initial state that permits a first amount of stretch of the elastic element to a second state that permits a second amount of stretch of the elastic element. ### Claim 19 (depends on 18) The system of claim 18, wherein the at least one stretch limiting element is configured to transition to one or more intermediate states between the first state and the second state, and wherein each of the one or more intermediate states permits an intermediate amount of stretch that is between the first amount of stretch and the second amount of stretch. ### Claim 20 (depends on 17) The system of claim 17, wherein the at least one stretch limiting element comprises at least one elongated element configured to stretch to a maximum length along a long axis of the elongated element and resist stretching of the elastic element past a distance limit. ### Claim 21 (depends on 15) The system of claim 15, wherein the elastic element is configured to contract in a direction opposite to a direction of stretching. ### Claim 22 (depends on 16) The system of claim 16, wherein the carrier structure comprises a set of ribs configured to provide rigidity to the sealant structure when the carrier structure is coupled to the sealant structure. ### Claim 23 (depends on 15) The system of claim 15, wherein the sealant structure comprises at least one set of contraction limiting structures configured to limit an amount of contraction of the sealant structure. ### Claim 24 (depends on 15) The system of claim 15, wherein the elastic element is configured to exert the force onto the tissue adjacent to the area of tissue trauma in response to being directly attached to the tissue adjacent to the area of tissue trauma. ### Claim 25 (depends on 15) The system of claim 15, further comprising at least one stretch limiting element, and wherein the at least one stretch limiting element comprises an inelastic member having a first end attached to a first region of the elastic element and a second end attached to a second end of the elastic element, and wherein the first end and the second end are configured to be positioned on opposing sides of the area of tissue trauma. ### Claim 26 (depends on 15) The system of claim 15, further comprising: a contact layer that is configured to be positioned within the sealed space in direct contact with the area of tissue trauma. ### Claim 27 (depends on 15) The system of claim 15, further comprising at least one force control element configured to control an amount of force that is applied by the elastic element to the tissue adjacent to the area of tissue trauma. ### Claim 28 (depends on 15) The system of claim 15, further comprising: at least one force control element configured to control an amount of force that is applied by the elastic element to the tissue adjacent to the area of tissue trauma; and a contact layer that is configured to be positioned within the sealed space and is configured to be in direct contact with the area of tissue trauma.