Breathable residual-limb socket system

US11324612B2 · kind B2 · utility

Assignee

• United States Government as represented by the Department of Veterans Affairs · US

Inventors

• Andrew H. Hansen · Apple Valley, US
• Eric Nickel · Brooklyn Park, US
• Billie Caris Savvas Slater · Mendota Heights, US
• Stuart Fairhurst · Minneapolis, US
• Jennifer Leestma · Wayzata, US

Key dates

• Filing date: Sep 18, 2020
• Grant date: May 10, 2022
• Expiry date: Nov 18, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/807
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A liner defines a pouch, an opening, a cup, and a first ring positioned on the pouch distal to the opening. The pouch is air-permeable and defines an internal volume for receiving a residual limb. The opening defined by the pouch provides access to the internal volume. The cup is air-impermeable and is positioned on the pouch distal to the opening. The liner is combined with an adapter for connecting a residual limb to a prosthetic limb. The adapter has a socket for receiving the cup, at least one hole positioned within the socket for drainage therefrom and sleeve extending from the socket and surrounding a central space. The adapter also has at least one vent positioned in the sleeve and overlies the air permeable material.