Patent ID: 6679853
Filing Date: 2004-01-20
Classification: A61M,Y10T

Abstract:
A guidewire for intraluminal use in a medical procedure, comprising:an elongated core member having a proximal core section and a distal core section; a flexible body disposed on the distal core section formed of a wire having an exterior of a first radiopacity, and a high strength interior of a second radiopacity, wherein the exterior of the wire has a transverse cross-section of at least 10% of the flexible body, and the first radiopacity is greater than the second radiopacity; wherein the exterior of the wire includes a material selected from the group consisting of platinum, palladium, iridium, and alloys thererof, and wherein the high strength interior includes a material selected from the group consisting of tantalum, tungsten, and alloys thereof.