Stent with expandable foam

US11864989B2 · kind B2 · utility

Assignees

• Lawrence Livermore National Security, LLC · US
• The Regents of the University of California · US

Inventors

• Thomas S. Wilson · San Leandro, US
• Duncan J. Maitland · College Station, US
• Ward Small, IV · Livermore, US
• Patrick R. Buckley · Mill Valley, US
• William J. Benett · Livermore, US
• Jonathan Hartman · Sacramento, US
• David A. Saloner · San Rafael, US

Key dates

• Filing date: Oct 14, 2020
• Grant date: Jan 9, 2024
• Expiry date: Jan 9, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/823
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system comprising first, second, and third shape memory polymers (SMPs); wherein (a) the first SMP is a biodegradable open cell foam that includes a first channel; (b) the second SMP includes a second channel and is included in the first channel; (c) the foam is in a first state and is configured to expand to a second state, radially outward from the second foam, in response to thermal stimulus; (d) the third SMP is between the first and second SMPs and includes a stent having a first strut that includes the third SMP and a second strut that includes the third SMP; and (e) each of the first, second, and third SMPs is coupled to a wire.