an expandable biodegradable polymeric stent is fabricated with biodegradable polymer fibers in a coil shape that is constructed with both central and external or internal peripheral lobes . it is delivered and expanded using a conventional angioplasty balloon system . the disclosed stent can serve as a temporary scaffold for coronary vessels after ptca or for peripheral endovascular stenting , or it can provide mechanical palliation for strictures of ductile organs . the disclosed stent also serves as a unique device for specific local drug delivery . therapeutic agents and cells can be loaded into the stent and gradually released to target tissues . local radiation therapy can also be delivered by a specially adapted stent .