Prosthesis seals and methods for sealing an expandable prosthesis

US10420658B2 · kind B2 · utility

Assignee

• Symetis SA · CH

Inventors

• Stephane Delaloye · Bülach, CH
• Jacques Essinger · Crissier, CH
• Jean-Luc Hefti · Crissier, CH
• Youssef Biadillah · Lausanne, CH
• Luc Mantanus · Lausanne, CH
• Fabien Lombardi · Prilly, CH
• Lionel Flaction · Ecublens, CH
• Yutit Wanakoht · Meyrin, CH

Key dates

• Filing date: Mar 13, 2014
• Grant date: Sep 24, 2019
• Expiry date: Sep 15, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0069
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Embodiments of the present disclosure are related to devices and techniques for para-valve sealing of an expandable stent-valve implanted using a catheter. In some embodiments, a stent-valve is provided which comprises a seal sleeve/cuff containing material that swells when contacted by blood. A piercing tool may be included and used to permit a user to puncture the sleeve/cuff prior to introduction into a patient's body. In some embodiments, the sleeve/cuff has an integral tubular structure configured to withstand balloon expansion of the stent-valve during or after implantation. In some embodiments, the seal is provided as a separate component from the stent-valve.