Variable stiffness medical devices

Details Variable stiffness medical devices Variable stiffness medical devices

2002-05-21

2009-12-15

Ho, (Jackie) Tan-Uyen T. (Department: 3773)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

C623S001150, C623S001180, C623S001200

Reexamination Certificate

active

07632303

ABSTRACT:
A medical device has a structure differentiated in terms of its stiffness or elasticity. Such stiffness differentiation is achieved through the use of superelastic or shape-memory materials which transition between a relatively malleable phase to a stiffer phase at a transition temperature which is adjustable by heat treatment. A differentiation of the stiffness of the structure forming the medical device is achieved by differentially adjusting the transition temperature of select portions of the medical device before the medical device is placed in its operational mode, usually implanted in a body at body temperature.

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