Patent SG-11201905563P-A (SG)
Title: Electrosurgical apparatus and electrosurgical instrument
Inventor: HANCOCK CHRISTOPHER PAUL
IPC: A61B18/18
Filed: 2018-02-07
Abstract: O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 16 August 2018 (16.08.2018) WI PO I PC T omit °nolo oloimmoncio i11110 oimIE (10) International Publication Number WO 2018/146159 Al -10 - -12 - -14- -16 - -18 - -20 0 (51) International Patent Classification: A61B 18/18 (2006.01) (21) International Application Number: PCT/EP2018/053097 (22) International Filing Date: 07 February 2018 (07.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1702252.6 10 February 2017 (10.02.2017) GB (71) Applicant: CREO MEDICAL LIMITED [GB/GB]; Block B, Beaufort Park, Chepstow Monmouthshire NP16 5TY (GB). (72) Inventors: HANCOCK, Christopher Paul; 37 Napier Road, Bath Bath and North East Somerset BA1 4LN (GB). BURN, Patrick; CREO MEDICAL LIMITED, Block B, Beaufort Park, Chepstow Monmouthshire NP16 5TY (GB). WHITE, Malcolm; CREO MEDICAL LIMITED, Block B, Beaufort Park, Chepstow Monmouthshire NP16 5TY (GB). (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, 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, (54) Title: ELECTROSURGICAL APPARATUS AND ELECTROSURGICAL INSTRUMENT A B 0 -2 CO 0 0- \"cru cc 4 6 8 10 12 14 16 8 0 Frequency I GHz FIG. 6 (57) : An electrosurgical instrument capable of supporting resonance of microwave energy at multiple frequencies. The in- strument comprises a coaxial cable and a radiating distal tip portion arranged to receive microwave energy from the coaxial cable. The radiating tip portion consists of a dielectric material having an electrical length selected in conjunction with its dielectric properties at three or more frequencies of microwave energy to support resonance at each frequency. By providing a single device that can effectively couple microwave energy into biological tissue at three or more frequencies, tissue ablation can be performed rapidly with accuracy. The instrument may be used in an apparatus that includes a generator arranged to supply microwave energy at three or more different frequencies. [Continued on next page] WO 2018/146159 Al MIDEDIMOMOIDEIREEMOMMIEEMOMMOVOIMIE 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). Declarations under Rule 4.17: of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))