HANCOCK, CHRISTOPHER PAUL,WHITE, MALCOLM,BURN, PATRICK,SHAH, PALLAV,HALES, PHILIP
申请号：
CA3008402
公开号：
CA3008402A1
申请日:
2016.12.16
申请国别(地区):
CA
年份:
2017
代理人:
摘要：
An electrosurgical instrument for use in minimally invasive surgical techniques that provides a small scale localized microwave field capable of precisely ablating tissue, e.g. in the lungs, through suitable selection of geometry and material for a radiating distal tip thereof. The instrument may be used with a bronchoscope having a power delivery structure formed within the instrument cord thereof. A vision system may be incorporated into the energy delivery structure. The instrument comprise a coaxial cable for conveying microwave energy to a radiating tip portion that comprises a dielectric tip and a distal conductive portion that extends longitudinally therein. The dielectric tip has a dielectric constant greater than a dielectric material within the coaxial cable. The distal end of the device is designed to facilitate efficient microwave energy delivery into lung tumour tissue to achieve a localized volume of ablation.
