Degradable vascular stent material: A vascular stent is a device that is surgically placed into human blood vessels or other pipelines to dilate blood vessels and prevent or reduce obstruction. Traditional brackets are made of metal, but using metal brackets is easy to have some shortcomings; Such as thrombosis, blocked blood supply reconstruction, and unsuitable multi-slice CT angiography.
Because endothelial cells play an important role in anti-thrombosis, inhibiting platelet aggregation and secreting vasoactive factors, it is the first choice to directly plant freshly obtained or cultured endothelial cells on the inner surface of artificial blood vessels.
At present, biodegradable vascular stent materials are mostly non-woven nets of biodegradable materials embedded in collagen or gelatin protein or treated with surface, such as non-woven nets of polylactic acid, polyhydroxy acid and polypeptide.
References:
Baidu Encyclopedia-Bioabsorbable Scaffold