Patent ID: 8876894
Filing Date: 2014-11-04
Classification: A61F

Abstract:
1. Apparatus comprising a prosthesis for implantation at a native semilunar valve of a native valve complex of a subject, the prosthesis comprising: a distal fixation member including exactly three engagement arms, wherein each of the engagement arms is configured to extend into a respective sinus of a heart when the prosthesis is implanted in a native valve complex, wherein the distal fixation member has an upstream end and a downstream end, the upstream end being configured to be positioned closer to a ventricle of a subject when the prosthesis is implanted in a subject, and wherein the distal fixation member is configured to apply a first axial force directed toward a ventricle of the subject; a proximal fixation member coupled to the distal fixation member, the proximal fixation member configured to be positioned at least partially on a ventricular side of a native valve complex, and to apply a second axial force directed toward the downstream artery, such that application of the first and second forces couples the prosthesis to the native valve complex by axially sandwiching the native valve complex from a downstream side and the ventricular side thereof; and a replacement cardiac valve, wherein the replacement cardiac valve includes commissures, and wherein the commissures are attached to the downstream end of the distal fixation member.