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1. (WO2018220178) ELECTROSURGICAL INSTRUMENT FOR ABLATION AND RESECTION

Pub. No.:    WO/2018/220178    International Application No.:    PCT/EP2018/064466
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 02 01:59:59 CEST 2018
IPC: A61B 18/18
A61B 18/14
A61B 18/04
A61B 18/00
A61B 17/00
Applicants: CREO MEDICAL LIMITED
Inventors: HANCOCK, Christopher Paul
WHITE, Malcolm
BURN, Patrick
CLEGG, Peter
Title: ELECTROSURGICAL INSTRUMENT FOR ABLATION AND RESECTION
Abstract:
An electrosurgical instrument which is capable of simultaneously ablating an area of tissue with microwave energy and performing resection with RF energy. The instrument comprises a structure for conveying both RF and microwave energy to an instrument tip that is configured to emit the microwave energy in a manner suitable for ablation (e.g. as a substantially spherical field) and to emit the RF energy in a more focussed manner to enable accurate and controllable resection to be performed. The energy conveying structure comprises a coaxial transmission line for conveying microwave energy. The coaxial transmission line has a hollow inner conductor that defines a passage that supports a second transmission line for conveying radiofrequency energy.