Shape-memory polymer foam device for treating aneurysms

US11141164B2 · kind B2 · utility

Assignees

• Lawrence Livermore National Security, LLC · US
• THE TEXAS A&M UNIVERSITY SYSTEM · US

Inventors

• Jason M. Ortega · Pacifica, US
• William J. Benett · Livermore, US
• Ward Small, IV · Livermore, US
• Thomas S. Wilson · San Leandro, US
• Duncan J. Maitland · College Station, US
• Jonathan Hartman · Sacramento, US

Key dates

• Filing date: May 18, 2017
• Grant date: Oct 12, 2021
• Expiry date: Jun 18, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/12077
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system for treating an aneurysm in a blood vessel or vein, wherein the aneurysm has a dome, an interior, and a neck. The system includes a shape memory polymer foam in the interior of the aneurysm between the dome and the neck. The shape memory polymer foam has pores that include a first multiplicity of pores having a first pore size and a second multiplicity of pores having a second pore size. The second pore size is larger than said first pore size. The first multiplicity of pores are located in the neck of the aneurysm. The second multiplicity of pores are located in the dome of the aneurysm.