Patent SG-11201809378P-A (SG)
Title: Electrosurgical apparatus for delivering radiofrequency energy and microwave energy and a method for its use
Inventor: HANCOCK CHRISTOPHER PAUL
IPC: A61B18/18
Filed: 2017-05-19
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 30 November 2017 (30.11.2017) WIPO I PCT omit VIII Hot 0 0 III 010 001010 0111mo oimIE (10) International Publication Number WO 2017/202737 Al W O 20 17 / 20 27 37 Al (51) International Patent Classification: A61B 18/18 (2006.01) A61B 18/14 (2006.01) A61B 18/12 (2006.01) (21) International Application Number: PCT/EP2017/062198 (22) International Filing Date: 19 May 2017 (19.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1609012.8 23 May 2016 (23.05.2016) GB (71) Applicant: CREO MEDICAL LIMITED [GB/GB]; Riverside Court, Beaufort Park, Chepstow Monmouthshire NP16 5UH (GB). (72) Inventors: HANCOCK, Christopher Paul; 37 Napier Road, Bath Bath and North East Somerset BA1 4LN (GB). AMOAH, Francis; c/o Creo Medical Limited, River- side Court, Beaufort Park, Chepstow Monmouthshire NP16 5UH (GB). JARMAN, Martin; c/o Creo Medical Limited, Riverside Court, Beaufort Park, Chepstow Monmouthshire NP16 5UH (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, 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, = (54) Title: ELECTROSURGICAL APPARATUS FOR DELIVERING RADIOFREQUENCY ENERGY AND MICROWAVE EN- ERGY AND A METHOD FOR ITS USE 500 signal 512 514 Fig. 4 (57) : An electrosurgical waveform (500) is to be provided having both radiofrequency (RF) energy and microwave energy components arranged to perform efficient haemostasis in biological tissue. The waveform comprises a first portion (506) primarily of RF electromagnetic energy and a second portion (508) primarily of microwave electromagnetic energy that follows the first portion. The second portion further comprises a plurality of RF pulses (510), wherein the first portion is to transition to the second portion when either a duration (512) of the first portion meets or exceeds a predetermined duration threshold or an impedance determined during the first portion meets or exceeds a predetermined threshold. [Continued on next page] WO 2017/202737 Al MIDEDIMOMOIDEIRMEMODIMIMMEHERVOIMIE 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). Published: — with international search report (Art. 21(3))