Biocompatible biomedical occlusion device

US11357488B2 · kind B2 · utility

Assignee

• THE TEXAS A&M UNIVERSITY SYSTEM · US

Inventors

• Mark A. Wierzbicki · College Station, US
• Duncan J. Maitland · College Station, US
• Matthew Miller · Rancho Santa Margarita, US
• Andrea D. Muschenborn · Bloomington, US
• Landon D. Nash · College Station, US
• Jason M. Szafron · Hamden, US
• Todd L. Landsman · San Jose, US

Key dates

• Filing date: Jan 24, 2020
• Grant date: Jun 14, 2022
• Expiry date: Jan 24, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2430/36
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device for a tissue channel includes a device frame, a shape memory polymer foam segment coupled to the device frame, and an attachment structure coupled to the device frame. The device frame includes a proximal structure, a distal structure, and an intermediate structure coupled to the proximal structure and the distal structure. The proximal structure is configured to collapse to fit into a delivery structure and expand to block migration of the proximal structure. The distal structure is configured to collapse to fit into the delivery structure and expand to block migration of the distal structure. The intermediate structure is configured to fit in the tissue channel upon device deployment. The shape memory polymer foam segment is configured to compress to fit into the delivery structure and occlude the channel. The attachment structure is configured to attach and detach the device from a delivery guide.