Assemblies of an expandable prosthetic heart valve within an annuloplasty ring

An assembly including a replacement prosthetic heart valve expanded within an annuloplasty ring, comprising:

• an expandable replacement prosthetic heart valve;
• an elongate core having a shape configured to remodel a preferred perimeter for a dysfunctional native heart valve when implanted, wherein the core comprises an elastic material such that the core is structured to expand and change shape from a pre-dilation configuration to a post-dilation configuration in order to accept the expanded replacement prosthetic heart valve during a replacement valve procedure, wherein the configuration of the core has an expanded perimeter that is larger than the preferred perimeter;
• a plurality of rigid segments forming a part of the core connected by elastic sections concentrating elastic properties of the core into areas of increased stretchability,
• the plurality of rigid segments adding rigidity to the core in both the pre-dilation and post-dilation configurations of the core;
• and,
• a cover, covering the core;
• and
• wherein the core is biased toward the pre-dilation configuration, such that when the replacement prosthetic heart valve is implanted within the annuloplasty ring in the post-dilation configuration, the areas of increased stretchability provide an inward/compressive force of the core on the expanded replacement prosthetic heart valve.