Lattice

US12156824B2 · kind B2 · utility

Assignee

• W.L. Gore & Associates GmbH · DE

Inventors

• Joseph R. Armstrong · Flagstaff, US
• Edward H. Cully · Flagstaff, US
• Jeffrey B. Duncan · Flagstaff, US
• Mark Y. Hansen · Flagstaff, US
• William D. Montgomery · Flagstaff, US
• Wendy J. Terry · Anthem, US

Key dates

• Filing date: Oct 22, 2020
• Grant date: Dec 3, 2024
• Expiry date: Oct 5, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0071
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to medical devices and methods of using them. The devices are prostheses which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The prostheses are configured to have a lattice resistant to dilation and creep, which is defined by a plurality of openings. The prosthesis may also optionally have a stent disposed proximal to the lattice. In exemplary embodiments, the fluoropolymer is expanded polytetrafluoroethylene. The composite materials exhibit high elongation while substantially retaining the strength properties of the fluoropolymer membrane. In at least one embodiment, the lattice is made of a composite material that includes a least one fluoropolymer membrane including serpentine fibrils and an elastomer. A lattice including a generally tubular member formed of a composite material including a least one fluoropolymer membrane containing serpentine fibrils and an elastomer is also provided.