Patent Number: 6,254,592

Title: Variable stiffness coils

Abstract: An implantable vaso-occlusive device, constructed of a helically wound coil having a central section along its longitudinal axis which is somewhat stiffer than at least one of its end regions.

Inventors: Samson; Gene (Milpitas, CA), Sepetka; Ivan (Los Altos, CA), Chee; U. Hiram (San Carlos, CA), Ken; Christopher G.M. (San Mateo, CA), Van; Nga T. (Santa Clara, CA)

Assignee: Target Therapeutics, Inc.

International Classification: A61B 17/12 (20060101); A61B 017/00 ()

Expiration Date: 07/03/2018