High-modulus superelastic alloy wire for medical and dental purposes

摘要

A wire used in the medical field for guiding purposes, as well as in other fields, such as in the field of orthodontics for teeth aligning purposes. The wire, when prepared for use in such applications, exhibits an innovative blend of advantageous properties, including enhanced kink resistance over stainless steel wires and enhanced stiffness over Nitinol wires, which enhance its use as a medical guidewire or stylet, and further, as an arch wire in orthodontia applications.

主权项

1. A wire used for one of medical or orthodontia purposes, comprising an elongated, flexible metal wire core at least partially formed of a superelastic trinary alloy, the superelastic trinary alloy having both an upper plateau (UP) and a lower plateau (LP) from a 3-point bend test that are respectively greater than a UP and a LP from same 3-point bend test of binary Nitinol alloy with substantially similar diameter as the wire core, the superelastic trinary alloy formed via high temperature and torsion treatment straightening solely.