Avoiding stress-induced martensitic transformation in nickel...

Details Avoiding stress-induced martensitic transformation in nickel... Avoiding stress-induced martensitic transformation in nickel...

2011-01-25

2011-01-25

Bui, Vy Q (Department: 3773)

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

Arterial prosthesis

Stent structure

C606S194000

Reexamination Certificate

active

07875070

ABSTRACT:
A process for assembling a medical device made from a nickel-titanium alloy for use in a mammalian body while avoiding the formation of stress-induced martensite and a medical device used in combination with a delivery system for deployment into the mammalian body are disclosed. By heating the nickel-titanium alloy of the medical device to a temperature above Md, and deforming and installing the device into a delivery system or holding capsule, it is possible to avoid the formation of stress-induced martensite in the stent, which stays in the austenitic phase throughout.

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