Biodegradable endoprostheses and methods of their fabrication

摘要

A biodegradable stent prosthesis formed from a degradable material, having a plurality of luminal, abluminal, and side surface regions, wherein a surface portion extending between the abluminal and luminal surface region of at least some structural elements is convex or bulbous and optionally, where at least some of the abluminal surface regions may be concave.

主权项

1. An expandable biodegradable stent prosthesis comprising:
a tubular expandable stent prosthesis body comprising a biodegradable polymeric material, said expandable stent prosthesis body comprising stent structural elements each having a luminal surface and an abluminal surface and a thickness between said luminal and abluminal surfaces; wherein the side surface regions extending between the abluminal surface and the luminal surface of at least some structural elements are bulbous, and wherein at least some of the abluminal surface regions are substantially concave and said luminal surface region is substantially flat.