Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient

US10154901B2 · kind B2 · utility

Assignee

• JenaValve Technology, Inc. · US

Inventors

• Helmut Straubinger · Aschheim, DE
• Johannes Jung · Karlsruhe, DE
• Michael J. Girard · Lino Lakes, US
• Arnulf Mayer · Borgo San Lazzaro, DE

Key dates

• Filing date: Sep 15, 2016
• Grant date: Dec 18, 2018
• Expiry date: Sep 15, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2230/0054
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device configured for implantation at a heart valve comprises an expandable stent. The stent comprises a first stent segment extending along a first length portion of the stent. The first stent segment is configured to be positioned and radially expanded against a vascular wall of a native aortic valve site. The first stent segment comprises a plurality of closed cell structures defining a circumference of the stent along the first length portion. The plurality of closed cell structures has a uniform density around the circumference. The stent also comprises a second stent segment disposed along a second length portion of the stent. The second stent segment comprises a plurality of interconnected strut members disposed around a circumference of the stent in alternating regions having a first strut density and a second strut density. The first strut density is higher than the second strut density.