Application of Nitinol Shape Memory Alloy in Medical Devices

(Application of Nitinol Shape Memory Alloy in Medical Devices)

Due to its unique superelasticity and shape memory effects, as well as
excellent biocompatibility and suitable elastic modulus, Nitinol is widely used
in cardiac, cerebrovascular and peripheral vascular devices. Cardiovascular
devices include vascular stents and heart valves And occluder, etc. Nitinol is
also widely used in non-vascular stents, orthodontics, repair instruments
(orthodontic wires and root canal files, etc.), orthopedic fracture fixation
instruments, surgical robots and other minimally invasive instruments.

In recent years, a variety of nickel-titanium alloy medical devices have been
put on the market through special review procedures for innovative medical
devices, including interventional biological heart valves, left atrial appendage
occluder systems, branched aortic stent grafts and delivery systems, and
abdominal aortic grafts Stent system, vascular reconstruction device, and
cerebral thrombus removal device, etc.

Currently, the medical devices on the market include artificial heart valves,
ceramic membrane atrial septal defect occluders, hydrophilic coated guide wires,
aortic stent graft systems, thoracic aortic stent graft systems, etc. Imported
medical devices include porous chambers. Septal defect occluder, self-expanding
venous stent, peripheral self-expanding stent system and endovascular stent
graft system, etc. Nickel-titanium memory alloy is mainly used for vascular
stent frame, heart valve holder, occluder fixing plate, support net, lock wire,
etc.

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(Application of Nitinol Shape Memory Alloy in Medical Devices)