Patent SG-11201909371P-A (SG)
Title: Composite dressings for improved granulation and reduced maceration with negative-pressure treatment
Inventor: ROBINSON TIMOTHY
IPC: A61F13/02
Filed: 2018-06-05
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 13 December 2018 (13.12.2018) WIP0 I PCT omit VIII °nolo III VIII Em VIII om° 1 ois (10) International Publication Number WO 2018/226616 Al (51) International Patent Classification: A61F 13/00 (2006.01) A61F 13/02 (2006.01) (21) International Application Number: PCT/US2018/035945 (22) International Filing Date: 05 June 2018 (05.06.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/516,540 07 June 2017 (07.06.2017) US 62/516,566 07 June 2017 (07.06.2017) US 62/516,550 07 June 2017 (07.06.2017) US (71) Applicant: KCI LICENSING, INC. [US/US]; Legal De- partment-intellectual Property, P.O. Box 659508, San An- tonio, TX 78265-9508 (US). (72) Inventors: ROBINSON, Timothy, Mark; 19 Wessex Av- enue, Shillingstone DT11 OTG (GB). LOCKE, Christo- pher, Brian; 6 Bosworth News, Bournemouth BH9 3SD (GB). HARPER, John, R.; 11315 Caliza Crest, Boerne, TX 78006 (US). (74) Agent: WELCH, Gerald, T. et al.; Harness, Dickey & Pierce, P.L.C., 5445 Corporate Drive, Suite 200, Troy, MI 48098 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). = (54) Title: COMPOSITE DRESSINGS FOR IMPROVED GRANULATION AND REDUCED MACERATION WITH NEGATIVE- PRESSURE TREATMENT W O 20 18/ 2266 16 Al 240 (57) : Dressings for tissue treatment with negative pressure and methods of using the dressings for tissue treatment with negative pressure, which may comprise a dressing having at least three layers as- sembled in a stacked relationship. The first layer may comprise or con- sist essentially of a polymer film having a plurality of fluid restrictions that are normally unstrained or closed. The second layer may comprise a manifold, and the third layer may comprise or consist essentially of a polymer drape. A fourth layer, which may be coupled to the first lay- er opposite the second layer, may comprise or consist essentially of a silicone gel having a plurality of apertures. In some examples, the plu- rality of apertures in the fourth layer may be registered with the fluid restrictions of the first layer. FIG. 2 [Continued on next page] WO 2018/226616 Al MIDEDIMOMMIDEFIEHEEDIMIH111111101111111111111111111 Published: — with international search report (Art. 21(3))