Patent ID: 6113615
Filing Date: 2000-09-05
Classification: A61B

Abstract:
An atherectomy device for removing deposits from a vessel, comprising:a drive shaft;a catheter through which the drive shaft is routed;an ablation burr coupled to the drive shaft;a guide wire extending through the drive shaft and the ablation burr; anda bias wire that displaces the ablation burr in the vessel, wherein the bias wire comprises a first wire having one end slidably affixed in a distal end of the catheter and a second end affixed to a first slip bearing disposed over the drive shaft and proximal to the ablation burr and a pair of wires having a first end secured to the first slip bearing and a second end secured to a second slip bearing disposed over the drive shaft and distal to the ablation burr, the pair of wires forming an angle with respect to each other.