These valves represent a new concept in heart valve design: the flexibility and ease of implantation of a stentless valve, yet only requiring a single suture line as with stented valves.

Key features:
• Fine frame with no surgical cloth means functionally larger valve
• Shorter surgical learning curve than stentless valves
• Thin layer of pericardium for durability and flexibility
• Flexible sewing cuff provides a guide for implanting surgeons