Electrode lead for electro-hydraulic lithotripsy

The invention provides an electrode wire for electro-hydraulic lithotripsy, which is composed of a core electrode, an insulating layer and an outer electrode which are arranged in parallel and extend along the axial direction, the insulating layer surrounds the core electrode in the radial direction, the outer electrode is arranged on the outer side of the insulating layer, and the thickness of the far end part of the outer electrode is greater than that of the other part of the outer electrode to form an electrode end cap. According to the invention, the discharge position is controllable, and stable electro-hydraulic shock waves are easily generated, so that the lithotripsy capability is ensured. 本发明提供一种液电碎石用电极导线，由并列且沿轴向延伸的芯电极、绝缘层和外侧电极组成，绝缘层在径向上围绕芯电极，外侧电极设于绝缘层外侧，其中，外侧电极的远端端部的厚度大于外侧电极的其它部分以形成电极端帽。本发明能够放电位置可控，容易产生稳定的液电冲击波，从而保证碎石能力。