HANCOCK, CHRISTOPHER PAUL,WHITE, MALCOLM,BURN, PATRICK,CLEGG, PETER,SHAH, PALLAV
申请号：
CA3060480
公开号：
CA3060480A1
申请日:
2018.06.01
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
An electrosurgical instrument for applying microwave energy to biologicaltissue, where the instrument is capable offreezing biological tissue in a region around a radiating tip portion andapplying microwave energy to the frozen tissue. By freezing theregion around the radiating tip portion, microwave energy radiated from theradiating tip portion can be transmitted through the frozenregion with low losses and into tissue surrounding the frozen region. Thisenables the size of the treatment area to be increased withouthaving to increase the amount of microwave energy delivered to the radiatingtip portion. The instrument comprises a transmissionline, a radiating tip, a fluid feed for conveying a tissue-freezing fluid, anda thermal transfer portion arranged to provide thermalcommunication between the tissue- freezing fluid and biological tissue in atreatment zone.
