An angioplasty medical procedure is the most effective method currently used to treat a blocked coronary artery. It is carried out by trying to insert a mesh-shaped tubular medical device called a stent inside the blocked coronary artery to expand it and allow blood to pass through the damaged blood vessel. The properties of the stent play a significant role in determining its behavior after being implanted in a human body. The Technique for Ordering Performance by Similarity to the Ideal Solution (TOPSIS) was used to choose the best material for a stent. A set of materials that are suitable for the ideal stent's properties has been chosen. These materials have then been contrasted based on a set of criteria including biocompatibility, visibility to x-ray, yield strength, ultimate tensile strength, modulus of elasticity, and ductility. The developed model results show that cobalt-chromium alloy ranks first among the alloys and refractory metals studied based on the considered criteria.
TOPSIS Method for Selection of the Best Stent Material for Damaged Blood Vessels
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