Method and device for thermal ablation having improved heat transfer

摘要: A thermal ablation catheter includes an elongate body member having a heating element disposed over predetermined length of its distal end or within axial lumen. The is suspended away from exterior surface the to form circulation region thereunder. Alternatively, distributed some all Thermally conductive fluid can be introduced through lumen in and into effect heat transfer. used introduce thermally medium hollow organ where raises temperature sufficiently induce injury lining organ. Optionally, expandable cage on associated introducer sheath may combination with catheter. helps center prevents direct contact between wall When catheter, useful position flow directing attached delivery Heat transfer uniformity enhanced by inducing oscillatory while being applied.