SG11201810385TA - Electrosurgical device with integrated microwave source - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1111111011110111011111111010111110011111111111111111111111111111111111111111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\"\" WO 2017/215972 Al 21 December 2017 (21.12.2017) WIP0 I PCT (51) International Patent Classification: DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, A61B 18/18 (2006.01) HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, (21) International Application Number: KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, PCT/EP2017/063609 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, (22) International Filing Date: SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, 05 June 2017 (05.06.2017) TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every (26) Publication Language: English kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (30) Priority Data: UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 1610252.7 13 June 2016 (13.06.2016) GB TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (71) Applicant: CREO MEDICAL LIMITED [GB/GB]; MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Riverside Court, Beaufort Park, Chepstow Monmouthshire TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, NP16 5UH (GB). KM, ML, MR, NE, SN, TD, TG). (72) Inventors: HANCOCK, Christopher Paul; 37 Napier Road, Bath Bath and North East Somerset BA1 4LN Declarations under Rule 4.17: (GB). BURN, Patrick; c/o Creo Medical Limited, River- — of inventorship (Rule 4.17(iv)) — side Court, Beaufort Park, Chepstow Monmouthshire NP16 Published: 5UH (GB). — with international search report (Art. 21(3)) = (74) Agent: JOHNSON, Richard et al.; Mewburn Ellis LLP, = City Tower, 40 Basinghall Street, London Greater London EC2V 5DE (GB). = (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, (54) Title: ELECTROSURGICAL DEVICE WITH INTEGRATED MICROWAVE SOURCE = = = 131 i = = — = i 150 152 = = = = 142 146 148 144 L / 134 f -Ip. I t 0 Il 132 136 radiating structure NFig. 3 IN CT ir) (57) : An electrosurgical instrument in which an amplifier for getting microwave power is located in the same region at a 1-1 N radiating structure for delivering that power in a distal portion of the instrument. The instrument may be insertable through the instrument jr:... .\" channel of a surgical scoping device, e.g. endoscope. The entire microwave generating line up may be incorporated into the instrument Il so that only DC input power is needed. The microwave power losses and associated drawbacks present in known devices can therefore © be avoided. The amplifier may be fabricated using wide band-gap semiconductor materials, such as GaN and GaN-based alloys, which ei offer the ability to fabricate devices that are active at RF and microwave frequencies.