Split type precisely-anchorable transcatheter valve-in-ring system

Abstract

A split type precisely-anchorable transcatheter valve-in-ring system comprises a split transcatheter valve-in-ring anchoring stent () and a transcatheter artificial biological valve-in-ring (), wherein the shape and structure of the transcatheter valve-in-ring anchoring stent () are matched with the real structure of the annuloplasty ring and supravalvular and infravalvular tissues after three-dimensional reconstruction based on imaging data of a patient who have undergone valve failure after implantation of a annuloplasty ring (), the transcatheter valve-in-ring anchoring stent () is firstly delivered to the patient's failed annuloplasty ring for release, deformation and alignment with the supravalvular and infravalvular tissues of the failed annuloplasty ring; the transcatheter artificial biological valve-in-ring () is delivered to the transcatheter valve-in-ring anchoring stent () for release, the stent of the transcatheter artificial biological valve-in-ring () deforms and expands to the functional state of the transcatheter valve-in-ring, causing the transcatheter valve-in-ring anchoring stent () to deform again and combine with the expanded transcatheter valve-in-ring, and meanwhile, the re-deformation of the transcatheter valve-in-ring anchoring stent () causes the transcatheter valve-in-ring anchoring stent () to combine with the subvalvular structure again and anchor.