Patent ID: 9622888
Date: 2017-04-18
CPC Classifications: A61F

Claim:
1. An implantable stent defining a length and having a deployed diameter suitable for implantation and a compacted diameter suitable for passage of the stent through a body conduit, the deployed diameter being larger than the compacted diameter of the stent, the implantable stent comprising adjacent metallic stent elements spaced apart longitudinally wherein the adjacent stent elements are connected longitudinally only by a perforated polymeric non-woven sheet cover, the cover having a multiplicity of individual apertures of substantially uniform size, each of the multiplicity of individual apertures having a long dimension that is parallel to the longitudinal axis of the stent when the stent is at the compacted diameter, each of the multiplicity of individual apertures having a substantially uniform shape when the stent is at the deployed diameter, wherein the multiplicity of individual apertures have a minimum size of about 0.10 mm; and wherein the stent is substantially open, having a porosity index of at least 50% along the length of the stent when the implantable stent is at the deployed diameter.