Replacement valve and anchor

A replacement heart valve comprising:

• an expandable anchor comprising a metallic framework, an unexpanded configuration, and an expanded configuration, the expandable anchor having three vertical posts, a proximal region, and a distal skirt attachment region, the distal skirt attachment region defining a distal undulating band having peaks and valleys and the proximal region defining a proximal undulating band having peaks and valleys, each of the vertical posts extending from a peak of the distal undulating band;
• the expandable anchor further comprising at least one catch, wherein at least one of the three vertical posts is engaged to the catch when the expandable anchor is in the expanded configuration and disengaged from the catch in the unexpanded configuration;
• and
• a tri-leaflet valve, the tri-leaflet valve attached to the posts via a suture material.