Patent ID: 7666202
Filing Date: 2010-02-23
Classification: A61B

Abstract:
1. A guide wire, comprising: an elongated flexible shaft having a proximal region and a flexible distal region; a proximal stop secured to the flexible distal region of the elongated flexible shaft; a distal stop secured to the flexible distal region of the elongated flexible shaft; and at least one distal body, the at least one distal body being secured to the elongated flexible shaft between the proximal stop and the distal stop, wherein the at least one distal body has a center of mass with fixed location in the flexible distal region of the elongated flexible shaft between the proximal stop and the distal stop, and wherein the at least one distal body provides an oscillation amplitude balancing system having a center of mass which alters the natural frequency of the distal region of the guide wire sufficiently to prevent a resonance frequency condition from occurring during rotating operation, and wherein the at least one distal body comes into contact with another distal body as the distal region flexes.