Patent SG-11201804604V-A (SG)
Title: Electrosurgical instrument for radiating microwave energy and dispensing liquid at a treatment site
Inventor: HANCOCK CHRISTOPHER PAUL
IPC: A61B18/18
Filed: 2016-12-07
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau ires.. 00) (43) International Publication Date ..... ..sr ,„,„01 15 June 2017(15.06.2017) WIPO I PCT (10) WO International 111111111111311111111111111111111111111111111111111111111111111111111311111111111111111 2017/097856 Publication Number Al (51) International Patent Classification: (81) Designated States (unless A61B 18/18 (2006.01) kind of national protection AO, AT, AU, AZ, BA, (21) International Application Number: BZ, CA, CH, CL, CN, PCT/EP2016/080138 DO, DZ, EC, EE, EG, (22) International Filing Date: HN, HR, HU, ID, IL, 7 December 2016 (07.12.2016) KW, KZ, LA, LC, LK, MG, MK, MN, MW, (25) Filing Language: English OM, PA, PE, PG, PH, (26) Publication Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, (30) Priority Data: ZW. 1521522.1 7 December 2015 (07.12.2015) GB (84) Designated States (unless (71) Applicant: CREO MEDICAL LIMITED [GB/GB]; kind of regional protection Riverside Court, Beaufort Park, Chepstow, Monmouthshire GM, KE, LR, LS, MW, otherwise indicated, for every available): AE, AG, AL, AM, BB, BG, BH, BN, BR, BW, BY, CO, CR, CU, CZ, DE, DJ, DK, DM, ES, FI, GB, GD, GE, GH, GM, GT, IN, IR, IS, JP, KE, KG, KN, KP, KR, LR, LS, LU, LY, MA, MD, ME, MX, MY, MZ, NA, NG, NI, NO, NZ, PL, PT, QA, RO, RS, RU, RW, SA, UG, US, UZ, VC, VN, ZA, ZM, otherwise indicated, for every available): ARIPO (BW, GH, MZ, NA, RW, SD, SL, ST, SZ, NP16 5UH (GB). TZ, UG, ZM, ZW), Eurasian (72) Inventors: HANCOCK, Christopher Paul; 37 Napier TJ, TM), European (AL, Road, Bath, Bath and North East Somerset BA1 4LN (GB). DK, EE, ES, FI, FR, L PRESTON, Shaun; c/o Creo Medical Limited, Riverside V, MC, MK, MT, NL, SM, TR), OAPI (BF, Court, Beaufort Park, Chepstow, Monmouthshire NP 16 5UH (GB). TSIAMOULOS, Zacharias P; 26 St Peter's GW, KM, ML, MR, NE, SN, TD, TG). (AM, AZ, BY, KG, KZ, RU, AT, BE, BG, CH, CY, CZ, DE, GB, GR, HR, HU, IE, IS, IT, LT, LU, NO, PL, PT, RO, RS, SE, SI, SK, BJ, CF, CG, CI, CM, GA, GN, GQ, Lane, Canterbury, Kent, CT1 2BP (GB). SAUNDERS, Declarations under Rule 4.17: Brian; 131 The Drive, Rickmansworth, Hertfordshire — of inventorship (Rule WD3 4DR (GB). 4.17(iv)) Published: (74) Agents: JOHNSON, Richard et al.; Mewburn Ellis LLP, City Tower, 40 Basinghall Street, London, Greater London — with international search report (Art 21(3)) EC2V 5DE (GB). (54) Title: ELECTROSURGICAL INSTRUMENT FOR RADIATING MICROWAVE ENERGY AND DISPENSING LIQUID AT A TREATMENT SITE 202 A 204 I 1r 1 200 206a 210a 216-H 222 208a 220 . 4 _ K 1 228 ' 208b 232 226 1-1 210b 206b 214 .4t in FIG. 2 Ot N Cly o (57) : An electrosurgical device capable of both: (i) generating a radiative ---. tion or sterilization, and (ii) dispensing a liquid to a target area, e.g. adrenaline IN energy allows controlled coagulation which is unaffected by changes in tissue impedance c:::, a high level of coagulation within a given time. The device comprises a probe tip for 224 having 218 230 microwave field to perform either blood coagula - the treatment of peptic ulcers. Using microwave during coagulation, and which can achieve a coaxial transmission line that includes a el hollow inner conductor having a dielectric material formed on an inner surface thereof. A liquid-conveying channel is located inside 0 the dielectric material. The probe tip includes a conductive element coupled to receive microwave energy from the coaxial transmis - sion line, the conductive element foiining a radiating antenna structure for emitting a microwave EM field outwardly from the probe tip.