LEAFLET ABRASION MITIGATION IN PROSTHETIC HEART VALVES

摘要

A prosthetic heart valve (600) includes a stent (602) extending in a longitudinal direction, the stentbeing formed of a plurality of struts (603) forming cells (612) and having a plurality of commissure features, a collapsed condition and an expanded condition. A valve assembly may be secured to the stent, the valve assembly including a cuff (606) and a plurality of leaflets. The cuff (may be formed of a fabric and a second material (650) different from the fabric, the cuff having commissure peaks and a plurality of midpeaks disposed between the commissure peaks. Each of the leaflets may have a free edge. The prosthetic heart valve may also comprise buffer strips wrapped around stuts of the stent. The portion of the cuff may also be disposed on the abluminal surface of the stent.