Collapsible leaflets for prosthetic heart valves

US11446142B2 · kind B2 · utility

Assignee

• ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC. · US

Inventors

• Caytlin Gale · Minneapolis, US
• Gary Erzberger · Plymouth, US
• Kristen T. Morin · Okabena, US
• Trevor Springer · Stillwater, US
• Jaron J. Olsoe · Minneapolis, US
• Kristopher Henry Vietmeier · Monticello, US
• Julia K. Roe · Stoughton, US
• Hannah Mitchell · Anchorage, US

Key dates

• Filing date: Sep 16, 2020
• Grant date: Sep 20, 2022
• Expiry date: Jan 29, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2220/0075
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A prosthetic heart valve may include a collapsible and expandable stent, a cuff attached to an annulus section of the stent, and a plurality of leaflets attached to at least one of the cuff or the stent within an interior region of the stent. The stent may have a plurality of cells connected to one another in a plurality of annular rows around the stent. The leaflets together may have a coapted position occluding the interior region of the stent and an open position in which the interior region is not occluded. Each leaflet may include a flat mesh of braided wire material having a plurality of pores extending therethrough. The leaflets may be devoid of biological material at a time of implantation.