Hollow coil guide wire apparatus for catheters

Details Hollow coil guide wire apparatus for catheters Hollow coil guide wire apparatus for catheters

1995-12-07

1999-08-03

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604264, A61M 2500

Patent

active

059318309

ABSTRACT:
A catheter guide wire includes a strip of material formed into an elongate coil, with a central hollow having a plurality of windings. The windings include inhibiting features to inhibit relative rotation of adjacent windings. A central wire core is inserted through the hollow of the coil and welded to some of the windings to keep them from separating longitudinally. This construction allows for lateral flexibility of the guide wire, but with desired torsional stiffness.

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patent: 5441483 (1995-08-01), Avitall
patent: 5441489 (1995-08-01), Utsumi et al.
patent: 5666969 (1997-09-01), Urick et al.
patent: 5682894 (1997-11-01), Orr et al.

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