INTRAVASCULAR STENT WITH HELICAL STRUTS AND SPECIFIC CROSS-SECTIONAL SHAPES

摘要

The present invention relates to a stent, comprising: a plurality of radially-expandable rings arranged along a longitudinal axis, wherein each radially-expandable ring may comprise a plurality of bar arms and a plurality of crowns, and adjacent crowns are connected by the bar arms therebetween; and a plurality of connectors between the radially-expandable rings for connecting such radially-expandable rings; wherein a cross-sectional shape of the bar arms, the crowns or the connectors may comprise helical structures, specific cross-sectional shapes, or a combination thereof. New stent manufacturing techniques, such as the 3D additive printing, could be used for making these proposed stents feasible.