Nitinol alloy will be applied to the interventional radiology, plastic surgery, neurology, and cardiology , the most representative of which is the nitinol stent.
Compared to conventional 316L stainless steel stents, nitinol stents perform well in terms of antithrombotic, corrosion resistance, and low modulus of elasticity.In this way, nitinol alloy instead of 316L stainless steel can effectively improve the medical effect.
Nitinol is widely used in aerospace and biomedical fields because of its shape memory, superelasticity, corrosion resistance, and biocompatibility.With the advent of the 1990s, nitinol tube was first used in laparoscopy, due to the high degree of freedom of laparoscopy, better operability, people began to gradually promote the use of nitinol tube in the medical field.
Nitinol tubes are mainly used in stents,catheters, and probes.Its diameter and size should be less than or equal to 2 mm, and the appearance has less roughness.
The nitinol stent is divided into a balloon expansion stent and a self-expanding stent according to the expansion mode.The self-expanding stent must be compressed into the delivery sheath before implantation into the human body, at this time the stent is only elastically deformed, the delivery sheath stent is transported to the appropriate position, and then removed from the delivery sheath, the binding disappears, the stent returns to its original shape; the balloon expansion stent is first compressed in vitro, wrapped in the balloon, then the balloon is not inflated, when the stent is delivered to the appropriate position of the patient, the balloon is inflated to expand, then the stent will be due to the expansion of the plastic deformation of the balloon, the stent reaches the appropriate size after the balloon is removed.In the field of aviation.
In the field of aviation, nitinol tubes are also used to connect important parts of the satellite and the fighter.