Systems and methods for percutaneous access and formation of arteriovenous fistulas

US11877785B2 · kind B2 · utility

Assignee

• AVENU MEDICAL, INC. · US

Inventors

• Jeffrey E. Hull · Midlothian, US
• David Trottingwolf Aldridge · Laguna Hills, US
• Seth A. Foerster · San Clemente, US
• Brad M. Kellerman · Escondido, US
• Gene Reu · San Clemente, US
• Mark A. Ritchart · Dana Point, US
• David K. Wrolstad · Yucaipa, US

Key dates

• Filing date: Aug 11, 2020
• Grant date: Jan 23, 2024
• Expiry date: Apr 4, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/064
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device and method for creating an arteriovenous (AV) fistula includes a proximal base having a distal diagonal end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal diagonal end surface. A heating assembly, including an energized heating element, is disposed one of the distal diagonal end surface and the proximal diagonal end surface. A passive heating assembly is disposed on the mating diagonal end surface. The distal diagonal end surface and the proximal diagonal end surface are adapted to contact opposing sides of a tissue portion to create a fistula. The angle of the proximal diagonal end surface matches the angle of the distal diagonal end surface, so that the two surfaces match one another during deployment.