Prosthetic heart valve devices and methods of valve replacement

US8323336B2 · kind B2 · utility

Assignee

• Medtronic, Inc. · US

Inventors

• Alexander J. Hill · Blaine, US
• Cynthia Clague · Minnetonka, US
• Carol E. Eberhardt · Fullerton, US
• Ana Menk · Okabena, US
• Mark J. Capps · Mission Viejo, US
• Billie J. Millwee · Fullerton, US
• Janice L. Shay · Lake Forest, US
• Debra Taitague · Tecate Mission Road, US
• Joseph C. Morrow · Eden Prairie, US
• Jerald L. Redmond · Germantown, US

Key dates

• Filing date: Apr 23, 2009
• Grant date: Dec 4, 2012
• Expiry date: Mar 31, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0039
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A stented valve of two or more leaflets made of pericardium or other material having a relatively thin profile at the annulus. The leaflet surfaces are attached via chords to a stent frame, where the chords are positioned to mimic the native valve anatomy and functionality. In particular, the valves of one exemplary embodiment of the invention are sized to replace a mitral valve and therefore the chords are arranged to prevent prolapse of the leaflets into the atrium. The stented valve has a relatively short height at its annulus due to the positioning of the chords. In addition, the stented valve is capable of being crimped to a small enough size that it can be delivered to the implantation site via transcatheter delivery systems and methods.