STENT WITH EASED CORNER FEATURE

摘要

An implantable stent includes a plurality of rings. At least a distal end ring has an eased corner feature formed in the polymer substrate at a radially outward, distal-facing corner of the ring while relatively sharp corners of the polymer substrate are maintained in radially inward corners of the ring.

主权项

1. An implantable stent comprising:
a first ring and a second ring, each of the first ring and the second ring made of a polymer substrate material forming a strut abluminal surface, a strut luminal surface, a distal-facing strut side surface, and a proximal-facing strut side surface, wherein the distal-facing strut side surfaces meet strut luminal surfaces to form sharp radially inward corners on the first ring and the second ring, an eased corner feature is formed in the polymer substrate material of the first ring, and the eased corner feature is located at a radially outward, distal-facing corner of the first ring and is configured to ease movement of the first ring through an anatomical lumen.