Patent ID: 8702735
Filing Date: 2014-04-22
Classification: A61B

Abstract:
1. A high-speed rotational atherectomy device for opening a stenosis in an artery having a given diameter, comprising: a guide wire having a maximum diameter less than the diameter of the artery; a flexible elongated, rotatable drive shaft advanceable over the guide wire, the drive shaft having a rotational axis; and one asymmetric abrading element having a lumen therethrough and attached to the drive shaft thereby and having an approximate geometric center, the abrading element consisting of a spherical outer surface, one flattened surface interrupting the spherical outer surface at a distance from the drive shaft and its axis of rotation, and a hard edge therebetween, the abrading element further consisting of a center of mass that is eccentrically positioned in up to three dimensions relative to the approximate geometric center of the abrading element.