Patent SG-11201808064Y-A (SG)
Title: Antenna structure
Inventor: HANCOCK CHRISTOPHER PAUL
IPC: A61B18/18
Filed: 2017-05-19
Abstract: Title: ANTENNA STRUCTURE 202 213 206 210 200 Fig. 6A 212 221 220 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 23 November 2017 (23.11.2017) WIPO I PCT omit IIl Hot 0 mu im Elio oimIE (10) International Publication Number WO 2017/198869 Al (51) International Patent Classification: A61B 18/04 (2006.01) HO1Q 11/08 (2006.01) A61B 18/18 (2006.01) (21) International Application Number: PCT/EP2017/062199 (22) International Filing Date: 19 May 2017 (19.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1608872.6 20 May 2016 (20.05.2016) 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). WHITE, Malcolm; c/o Creo Medical Limited, Riverside Court, Beaufort Park, Chepstow Monmouthshire NP16 5UH (GB). BURN, Patrick; 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, 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, (57) : A helical antenna structure for use in an electrosurgical instrument. The helical antenna structure is connectable to inner and outer conductors of a coaxial transmission line, and can act as both a radiating antenna or applicator structure, and also in a mode where an electric field is generated between its electrodes. In this way, the helical antenna structure may be used both for argon plasma coagulation, and deep tissue coagulation, as well as providing means for delivering a fluid, e.g. a therapeutic fluid such as adrenaline. This may be achieved through the use of helically arranged electrodes and a channel for gas to flow. This device is also used to deliver adrenaline and RF/microwave energy. [Continued on next page] WO 2017/198869 Al MIDEDIM01101 DIDIRMEMMEHH11111111111101111111111111111111 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))