Transcatheter atrio-ventricular valve prosthesis

摘要

A transcatheter atria-ventricular valve prosthesis for functional replacement of an atrio-ventricular valve in a connection channel, having a circumferential connection channel wall structure, between atrial and ventricular chambers of a heart, including an inner device to be disposed in the interior of the connection channel, the inner device having a circumferential support structure which is radially expandable and having a valve attached to the circumferential support structure, and an outer device to be disposed on the exterior of the connection channel, wherein the outer device at least partly extends around the inner device at a radial distance to the inner device, wherein the inner and outer devices form a securing mechanism for securing the circumferential connection channel wall structure therebetween.

主权项

1. A transcatheter atrio-ventricular valve prosthesis for functional replacement of an atrio-ventricular valve adapted to be disposed in a connection channel, having a circumferential connection channel wall structure, configured to be placed between an atrial chamber and a ventricular chamber of a heart,
the transcatheter atrio-ventricular valve prosthesis comprising:
an inner device configured to be disposed in an interior of the connection channel,
the inner device having a circumferential support structure which is radially expandable, and having a valve attached to the circumferential support structure,wherein the circumferential support structure of the inner device has a tubular funnel portion, extends along an axis, and has two axial ends, andan outer device configured to be disposed on an exterior of the connection channel,
wherein the outer device is configured to at least partly extend around the inner device at a radial distance from the inner device and at an axial distance from the tubular funnel portion of the inner device, the outer device dimensioned so as to be loosely fit around the inner device such that there is no substantial radial compressive force on the inner device by the outer device, wherein:
the inner and outer devices are configured to form a securing mechanism for securing the circumferential connection channel wall structure therebetween,the outer device is configured to form a ring, for extending circumferentially around the circumferential connection channel wall structure, between and at a distance from the axial ends of the inner device, andthe circumferential support structure of the inner device comprises an outer circumferential groove, and the ring of the outer device is configured to be aligned with the outer circumferential groove.