公开(公告)号：EP4368135A1

公开(公告)日：2024-05-15

申请号：EP22206792.8

申请日：2022-11-10

申请人： Endowave Ltd.

发明人： Ruvio, Giuseppe ,  Eaton-Evans, Jimmy ,  Hogan, Simon ,  Bergin, Declan ,  Farina, Laura ,  Walsh, Eoin J. ,  Walsh, Paul

IPC分类号： A61B18/18

CPC分类号： A61B18/1815 ,  A61B2018/183820130101 ,  A61B2018/186120130101

摘要： A microwave ablation probe (100; 200; 300; 400; 500). The microwave ablation probe comprising a dipole antenna (106; 206; 306; 406; 506) arranged to emit microwave radiation to heat surrounding tissue; and a feed cable arranged to supply electromagnetic energy to the dipole antenna, the feed cable comprising a coaxial cable having an inner conductor (108; 208; 308; 408; 508), an outer conductor (110; 210; 310; 410; 510) and a dielectric (112; 212; 312; 412; 512) therebetween. The dipole antenna (106; 206; 306; 406; 506) comprises a first antenna section (106a; 206a; 306a; 406a; 506a) forming a first pole of the dipole antenna and a second antenna section (106b; 206b; 306b; 406b; 506b) forming a second pole of the dipole antenna. The first antenna section (106a; 206a; 306a; 406a; 506a) comprises one or more antenna elements (116a-i; 216a-i; 316a-i; 416a-h; 516a-h) each formed integrally with the outer conductor (110; 210; 310; 410; 510) and comprising an outwardly extending portion (117a) extending away from a longitudinal axis of the feeding cable and bending back over an insulator (118; 318; 418; 518) to form an overlapping portion (117b) extending proximally along the length of the feeding cable. The first antenna section (106a; 206a; 306a; 406a; 506a) further comprises an antenna insulator (118; 318; 418; 518) between the overlapping portion of each of the one or more antenna elements and the part of the outer conductor which they overlap.