What are the benefits of nitinol & super-elasticity?
Nitinol features a unique material behavior. Small changes to the composition and the manufacturing process allow you to change the effect of the mechanical shape memory (super-elasticity) or the thermal shape memory (shape memory effect).
Superelastic Nitinol = mechanical effect Thermo-Reactive Nitinol = thermal effect
The alloy is light-weight with excellent biocompatibility. The super-elasticity causes the material to return to its original shape through its intrinsic tension when not under load.
Unlike the shape memory effect, no temperature changes are necessary and the potential risk of heat-induced necrosis is virtually eliminated. Furthermore, the surgical procedure is abbreviated because no heating of the prosthesis is required.
Compared to all other stapes prostheses, the super-elasticity of the hook greatly facilitates both insertion and the closing procedure. By applying light vertical pressure, the prosthesis moves into place without the need for subsequent fixation or adjustment. The flat band hook evenly and fully encloses the long crus. Together, the shape and material of the prosthesis ensure optimal positioning and permanent fixation to the crus. The flat band prosthesis diffuses the impact of pressure on the long crus, which helps prevent bone constriction.