Variable stiffness catheter

Details Variable stiffness catheter Variable stiffness catheter

1991-08-07

1994-05-03

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604264, 604280, A61M 2500

Patent

active

053083423

ABSTRACT:
A catheter composed of an outer coaxial tube or relatively high flexibility and three tandemly disposed inner coaxial tube segments that vary in stiffness with the stiffest being located at the proximal end of the catheter and the least stiff ending proximal of the proximal end of the catheter. The catheter thus has four regions of different stiffness/flexibility.

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patent: 5069662 (1991-12-01), Bodden
patent: 5078702 (1992-01-01), Pomeranz
patent: 5085649 (1992-02-01), Flynn

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