EPSTEIN, GORDON,LEE, BRUCE,COHEN, JEFFREY M.,HAGMANN, ADAM,SPERO, RICHARD
申请号：
CA2614328
公开号：
CA2614328C
申请日:
2006.06.30
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
The inventive ablation element comprises an elongated cannula having aproximal end and a distal end. The cannuladefines an internal lumen within the cannula and a cannula axis. A pluralityof conductors contained within the lumen, each of theconductors has a proximal end proximate the proximal end of the cannula, and adistal end proximate the distal end of the cannula.A plurality of ablation stylets each has a proximal end and a distal end, andeach coupled at the respective proximal end of the styletto the distal end of a respective conductor, the stylets comprise adeflectable material, the conductors together with their respectivestylets being mounted for axial movement. A trocar point defined proximate thedistal end of the cannula. A deflection surfacepositioned between the trocar point and the proximal end of the cannula, thedeflection surface being configured and positioned todeflect, in response to axial movement of the stylets in a direction from theproximate end of the cannula to the distal end of thecannula, at least some of the stylets laterally with respect to the cannulaaxis in different directions along substantially straight paths,the paths defining an ablation volume.
