Patent ID: 6013038
Filing Date: 2000-01-11
Classification: A61B,A61M

Abstract:
A method for deterring longitudinal movement of a guidewire during exchange of a first catheter through which said guidewire extends with a second catheter, comprising:a) providing a guidewire having at least one ferromagnetic region thereon, wherein said ferromagnetic region has a substantially uniform diameter;b) positioning a magnet which has opposed poles defining an opening configured to radially receive the guidewire which is within the first catheter so that the opposed poles are on opposite sides of the guidewire, which produces a magnetic field substantially transverse to said guidewire such that said magnetic field will act on a ferromagnetic portion of said guidewire to magnetically deter longitudinal movement of said guidewire;c) withdrawing and removing the first catheter; andd) passing a second catheter over said guidewire.