Use a safe valve stent and a valve replacement device with the valve stent

摘要

safely used valve stent and a valve replacement device having the valve stent, wherein the valve stent includes a tubular support mesh frame and an enlarged section connected to the end of the support mesh frame, which is attached to all endpoints on a corresponding side of the supporting network frame. flared sections are located at a preceding release end of the valve stent. an outer rim of the widened section is formed by several curved support bars, and wherein all end nodes in the support network frame that correspond to the positions of the support bars are all connected to the support bars. Due to improvements to the structure of existing self-expanding memory alloy valve stents, existing rhombic vertices in isolation that are present in non-end portions of the valve stent are eliminated. While maintaining the mechanical properties of the original structure, this prevents pimples from appearing after the valve stent is compressed and thus solves the problem of sheath damage caused by the pimples.