SPIRAL ELECTRODE FOR NEUROMODULATION THERAPY

The invention provides a catheter having a spiral electrode and a method for their use in neuromodulation therapy. A therapeutic assembly is disposed at a distal portion of a neuromodulation catheterand is adapted to be located at a target location within a target blood vessel of a human patient. The therapeutic assembly can include at least two shape-memory metallic elements that extend in parallel along the distal portion, each metallic element having an exposed surface to serve as an electrode. The shape memory of the metallic elements transforms the therapeutic assembly between a low-profile delivery configuration and a deployed radially-expanded spiral configuration. A dielectric material attaches the metallic elements to each other while maintaining physical separation and electrical isolation from each other along at least the distal portion. 具有螺旋电极的导管以及用于在神经调节治疗中使用这些导管的方法。治疗组件设置在神经调节导管的远侧部分处并适于位于人类患者的目标血管内的目标位置处。治疗组件可以包括至少两个形状记忆金属元件，这些金属元件沿着远侧部分平行延伸，每个金属元件具有暴露的表面以用作电极。金属元件的形状记忆使治疗组件在低轮廓递送构型和部署的径向扩张螺旋构