# US 11,298,454 B2 · Reduced pressure treatment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,454 B2 - Document ID: US11298454B2 - Status: Granted - Kind: B2 - Application number: 15/872,880 - Filed: 2018-01-16 - Published: 2018-07-05 - Granted: 2022-04-12 - Earliest claimed: 2002-09-03 - Assignees: Smith & Nephew, Inc. - Applicants: Smith & Nephew, Inc. - Inventors: Richard Scott Weston - Web page: https://patentgrep.com/patent/US11298454B2 ## CPC - A61F 15/008: {Appliances for wound protecting, e.g. avoiding contact between wound and bandage (corn plasters A61F13/063)} - A61F 13/00059: {provided with visual effects, e.g. printed or colored} - 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 1/732: {Visual indicating means for vacuum pressure} - A61M 1/966: {having a pressure sensor on or near the dressing} - A61M 1/982: {with means for detecting level of collected exudate} - A61F 2013/00153: {coloured or with decoration pattern or printing} - A61F 2013/0028: {applying of mechanical pressure; passive massage} - 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} - A61M 2205/3344: Measuring or controlling pressure at the body treatment site - 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 wound treatment apparatus is provided for treating tissue damage, which comprises a fluid impermeable wound cover sealed over a site for purposes of applying a reduced pressure to the site. The apparatus also can include a cover with protrusions on its surface for purposes of monitoring pressure at the site. One or more sensors can be positioned under the cover to provide feedback to a suction pump controller. The apparatus can have a miniature and portable vacuum source connected to the wound cover. ## Claims ### Claim 1 A reduced-pressure treatment apparatus, comprising: a dressing comprising: a foam layer comprises a first area and a second area, wherein the foam layer is configured for placement over a wound; and a cover layer positioned over the first area and second area, wherein the first area is sealed from the second area; a vacuum system comprising a reduced-pressure source configured to be in fluid communication with the dressing, wherein the vacuum system is configured to create reduced pressure at the first area that is separate from the reduced pressure at the second area, wherein the vacuum system further comprises a reduced-pressure source controller for controlling the reduced-pressure source; and a temperature monitoring system connectable with the vacuum system. ### Claim 2 (depends on 1) The reduced-pressure treatment apparatus of claim 1, wherein the apparatus comprises a computer or data processor and a display device. ### Claim 3 (depends on 2) The reduced-pressure treatment apparatus of claim 2, wherein the apparatus further comprises a recording device in communication with the computer or data processor. ### Claim 4 (depends on 3) The reduced-pressure treatment apparatus of claim 3, wherein the recording device is configured to receive data. ### Claim 5 (depends on 3) The reduced-pressure treatment apparatus of claim 3, wherein the recording device is in communication with the reduced-pressure source controller and configured to store treatment information. ### Claim 6 (depends on 2) The reduced-pressure treatment apparatus of claim 2, wherein the computer or data processor is configured to control tissue treatment, monitor sensors, generate alarms, and perform communications with devices external to the reduced-pressure source controller. ### Claim 7 (depends on 2) The reduced-pressure treatment apparatus of claim 2, further comprising a device in communication with the display device, wherein the device is configured to produce audible sound. ### Claim 8 (depends on 1) The reduced-pressure treatment apparatus of claim 1, further comprising a battery or a cord configured to be plugged into a wall socket connected to the apparatus. ### Claim 9 (depends on 1) The reduced-pressure treatment apparatus of claim 1, further comprising a second controller connected to the reduced-pressure source controller, the second controller configured to receive feedback information from one or more sensors configured to be disposed on the dressing and communicate the feedback information to the reduced-pressure source controller. ### Claim 10 (depends on 1) The reduced-pressure treatment apparatus of claim 1, further comprising a canister. ### Claim 11 (depends on 1) The reduced-pressure treatment apparatus of claim 1, wherein the foam layer is segmented into areas. ### Claim 12 (depends on 11) The reduced-pressure treatment apparatus of claim 11, wherein the foam layer segmented into areas comprises a plurality of areas, the plurality of areas comprising the first area, the second area, and a plurality of third areas. ### Claim 13 (depends on 11) The reduced-pressure treatment apparatus of claim 11, wherein the foam layer segmented into areas comprises a grid pattern of areas formed from the segmented foam layer. ### Claim 14 A reduced-pressure treatment apparatus, comprising: a dressing comprising: a foam layer comprises a first area and a second area, wherein the foam layer is configured for placement over a wound; and a cover layer positioned over the first area and second area, wherein the first area is sealed from the second area; and a vacuum system comprising a reduced-pressure source configured to be in fluid communication with the dressing, wherein the vacuum system is configured to create reduced pressure at the first area that is separate from the reduced pressure at the second area, wherein the vacuum system further comprises a reduced-pressure source controller for controlling the reduced-pressure source. ### Claim 15 (depends on 14) The reduced-pressure treatment apparatus of claim 14, wherein the foam layer is segmented into areas. ### Claim 16 (depends on 15) The reduced-pressure treatment apparatus of claim 15, wherein the foam layer segmented into areas comprises a plurality of areas, the plurality of areas comprising the first area, the second area, and a plurality of third areas. ### Claim 17 (depends on 15) The reduced-pressure treatment apparatus of claim 15, wherein the foam layer segmented into areas comprises a grid pattern of areas formed from the segmented foam layer. ### Claim 18 A reduced-pressure treatment apparatus for treating a wound comprising: a dressing comprising: a foam layer configured for placement over the wound, the foam layer segmented into areas, wherein the foam layer segmented into areas comprises a grid pattern of areas formed across a horizontal plane of the segmented foam layer; and a cover layer positioned over the segmented areas; and a vacuum system comprising a reduced-pressure source configured to be in fluid communication with the dressing, wherein the vacuum system is configured to create reduced pressure at the segmented areas, wherein the vacuum system further comprises a reduced-pressure source controller for controlling the reduced-pressure source. ### Claim 19 (depends on 18) The reduced-pressure treatment apparatus of claim 18, wherein the foam layer segmented into areas comprises a first area and a second area and wherein the reduced pressure applied to the first area is different from the reduced pressure applied to the second area.