Patent ID: 6533783
Filing Date: 2003-03-18
Classification: A61M

Abstract:
A bi- or unidirectionally deflectable ablation catheter, comprising:a gripping element; a flexible guide tube which extends from the gripping element and which terminates in a catheter tip for treating or investigating a hollow organ in a body, wherein there is at least one draw wire provided for deflection purposes, the at least one draw wire extending within the flexible guide tube and being fixed to the tip of the catheter and being movable by way of a transmission means disposed in the gripping element for converting the rotary movement of a manual control wheel into a longitudinal movement for the draw wire; wherein a toothed drive pulley which is coupled to the control wheel is provided as the transmission means, the toothed drive pulley correspondingly engaging into the teeth of a toothed belt which is guided over a U-shaped or L-shaped rail that is arranged opposite the toothed drive pulley within the gripping element such that the draw wire is pullingly longitudinally movable by way of an entrainment member fixed to a flank side of the toothed belt.