SG11201901636XA - Microwave energy transfer component for electrosurgical apparatus - Google Patents

Abstract

101 Shield housing First microstrip track 156 Hollow conduit 180 Dielectric 144 120 Microstrip 124 conductor Second microstrip track 146 Outer conductor 148 Supercable housing To radiating tip 130 Super cable 136 Super cable plate Connector 150 To generator 154 Connector pill FIG. 4 (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) WIP0 1 PCT Hu omit VIII °nolo Holum lull 100110111110 oimIE (10) International Publication Number WO 2018/146160 Al (51) International Patent Classification: A61B 18/18 (2006.01) (21) International Application Number: PCT/EP2018/053098 (22) International Filing Date: 07 February 2018 (07.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 1702305.2 13 February 2017 (13.02.2017) GB (71) Applicant: CREO MEDICAL LIMITED [GB/GB]; Creo House Unit 2, Beaufort Park, Beaufort Park Way, Chepstow Wales NP16 5UH (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). PRESTON, Shaun; 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, 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, (54) Title: MICROWAVE ENERGY TRANSFER COMPONENT FOR ELECTROSURGICAL APPARATUS 300 Dielectric substrate Connector plate 115 (57) : A microstrip impedance transformer that permits efficient (i.e. low loss) coupling of a microwave feed line (e.g. a conventional 50 SI coaxial cable) to an instrument cable, where the instrument cable has a lower impedance (e.g. in the range 12 to 14 SI) and includes an internal passageway. The microstrip impedance transformer is configured to perform impedance matching between the microwave feed line and the instrument cable in a manner that does not adversely affect a separate feed, e.g. for delivering fluid, into the internal passageway. [Continued on next page] WO 2018/146160 Al MIDEDIMOMOIDEIREEMOMMIEEMOHINHOMEMOIMIE 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))