Patent ID: 7850623

Claim:
An elongate medical device, comprising: an inner elongate member having a proximal portion and a distal portion; a continuous wire, wherein prior to being helically wound the continuous wire includes a first portion having a first cross-sectional profile, a second portion having a second cross-sectional profile different from the first cross-sectional profile, and a transition region between the first portion and the second portion; wherein the first portion of the continuous wire is helically wound about the proximal portion of the inner elongate member and the second portion of the continuous wire is helically wound about the distal portion of the inner elongate member; wherein the first portion of the helically wound continuous wire has a radial extent and the second portion of the helically wound continuous wire has a radial extent less than the radial extent of the first portion; and an outer tubular member having a proximal end and a distal end, the outer tubular member being disposed about at least a portion of the proximal portion of the inner elongate member including the helically wound continuous wire, wherein the distal end of the outer tubular member is disposed proximate the transition region of the continuous wire.