Patent ID: 8241230
Filing Date: 2012-08-14
Classification: A61M

Abstract:
1. A wire guide suitable for use in a body vessel, the wire guide comprising: an outer core member having proximal and distal ends; an inner core member having proximal and distal ends, the inner core member being disposed for longitudinal movement with respect to the outer core member; and a coiled member having proximal and distal ends, wherein the distal end of the outer core member is attached to the proximal end of the coiled member, and the inner core member is attached to the coiled member at an attachment region between the proximal and distal ends of the coiled member, wherein the outer core member is configured to be advanced distally with respect to the inner core member to causes the coiled member to compress along a variable stiffness region spanning a full length between the proximal end of the coiled member and the attachment region, and wherein the inner core member is positioned without any intervening member between the inner core member and the coiled member along the full length of the variable stiffness region and the inner core member comprises a uniform diameter along the full length of the variable stiffness region.