Balloon-expandable heart valve system and method of implantation

A system, comprising:

• a heart valve assembly, comprising:
• a stent-frame comprising an anchoring section and an outflow section, the anchoring section having a distal annulus section and a support section that is positioned between the distal annulus section and the outflow section,
• wherein the distal annulus section is defined by a single distal row of cells that has a distal-most annular ring of alternating peaks and valleys, with the distal row of cells having a concave inflection,
• wherein the outflow section is defined by a single proximal row of cells, with each cell in the proximal row of cells having a generally hexagonal shape, and having a proximal-most annular ring of alternating peaks and valleys, and
• a leaflet assembly stitched to the anchoring section;
• and
• a balloon on which the heart valve assembly is crimped, the balloon comprising:
• a proximal section and a distal section;
• and
• a central valve contact portion positioned between the proximal and distal sections, the contact portion having an outflow portion, a neck portion, and a central portion between the outflow portion and the neck portion, wherein the neck portion has an inflection zone that corresponds in size and shape with the concave inflection of the distal annulus section;
• and
• wherein the outflow portion of the balloon receives the outflow section of the stent-frame, the central portion of the contact portion of the balloon receives the support section of the stent-frame, and the neck portion receives the annulus section of the stent-frame.