| 摘要 |
A core wire insertable in a catheter guide wire assembly provides a defined degree of rigidity to the catheter assembly to allow the assembly to be maneuvered through the tortuous path of the vascular or other system of a patient. The core wire includes, at its distal end, a paddle having a substantially barrel-shaped body, leading to a continuous chamfer which terminates in a truncated end. Further, the core wire can have a curved section adjacent its distal end. The curved section is made by press hardening the generally circular core wire into a substantially rectangular shape such that the press hardened wire memorizes the arc of curvature. When the core wire is press hardened into a rectangular shape, a singular degree of freedom of movement is imparted to the wire in contrast to the two degrees of freedom of movement of the cross-sectionally circular core wire. A method of manufacture is also described using concave/convex mating dies or flat plate dies.
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