Stents are commonly used in the treatment of blocked arteries. They are tiny and expandable mesh tubes that hold arteries open and help treat coronary and peripheral artery diseases. Bioabsorbable stents are defined as fully biodegradable stents that completely disappear overtime.
Bioabsorbable stents can be broadly classified into two main types: polymeric bioabsorbable stents and metallic alloy bioabsorbable stents. Polymeric bioabsorbable stents are widely used in cardiovascular devices. Polymers used in bioabsorbable stents are Poly-L-Lactic acid (PLLA), Poly (D, L-lactide/glycolide) copolymer (PDLA), Polyglycolic Acid (PGA), and polycaprolactone. Usage of bioabsorbable polymer coating reduces the need for extended dual anti-platelet therapy and reduces thrombotic events. Poly-L-Lactic acid is widely used in medicine and breaks down lactic acid into natural metabolites in the human body. After that, Poly-L-Lactic acid enters into Krebs cycle and metabolized carbon dioxide and water.
Click Here for more information..