SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Shape memory medical implants. The medical implants are made from titanium nickelide, a shape memory alloy (SMA). SMAs can 'remember' their original cold-forged shape and return to it when heated in a deformed state. The metal can be made to return to its original state when heated to body temperature. Plates for fixing bones and stents for holding opened blocked arteries are among the medical devices to use SMAs.
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