Superelastic formable guidewire with malleable cladding

Details Superelastic formable guidewire with malleable cladding Superelastic formable guidewire with malleable cladding

1993-10-15

1994-11-29

Pellegrino, Stephen C.

Surgery

Truss

Pad

128657, 604281, A61B 500

Patent

active

053680499

ABSTRACT:
A guidewire is provided having a malleable segment extending beyond a superelastic tip portion of the guidewire. Such a configuration provides a guidewire which is resistant to kinking and plastic deformation in the superelastic portion, but which has a distal segment which can be shaped by a physician immediately prior to use in a surgical procedure. The malleable segment can be attached to the distal end of the superelastic tip portion, or alternatively, can result from a malleable coating on a portion of the superelastic tip, wherein the coating is thick enough to allow the coated portion of the tip to be formed into a desired shape. The malleable segment can be radiopaque to ease fluoroscopic visualization of the guidewire. In addition, the entire guidewire located proximally to the malleable segment can be fabricated from a superelastic alloy to provide resistance to kinking and plastic deformation along virtually the entire length of the guidewire.

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