Devices and methods for effectuating percutaneous glenn and fontan procedures

US11179156B2 · kind B2 · utility

Assignees

• The United States of America, as represented by the Secretary, Department of Health and Human Services · US
• Transmural Systems LLC · US

Inventors

• Nasser Rafiee · Andover, US
• Stuart MacDonald · Pultneyville, US
• Robert J. Lederman · Bethesda, US
• Kanishka Ratnayaka · Bethesda, US
• Biwei MacDonald · Andover, US
• Alana Rafiee · Andover, US

Key dates

• Filing date: Apr 30, 2019
• Grant date: Nov 23, 2021
• Expiry date: May 27, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0098
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In some implementations, a radially self-expanding endograft prosthesis is provided that includes (i) distal flange that is self-expanding and configured to flip generally perpendicularly with respect to a body of the prosthesis to help seat the prosthesis against a tissue wall, (ii) a distal segment extending proximally from the distal flange that has sufficient stiffness to maintain a puncture open that is formed through a vessel wall (iii) a compliant middle segment extending proximally from the distal segment, the middle segment being more compliant than the distal segment, and having independently movable undulating strut rings attached to a tubular fabric, the combined structure providing flexibility and compliance to allow for full patency while flexed, the segment being configured to accommodate up to a 90 degree bend, (iv) a proximal segment having a plurality of adjacent undulating strut rings that are connected to each other.