Retrievable stent and method of use thereof

US6821291B2 · kind B2 · utility

Assignee

• AMS Research Corporation · US

Inventors

• Stephen L. Bolea · Watertown, US
• Robert L. Rykhus · Edina, US
• Sidney F. Hauschild · Cottage Grove, US
• Johann J. Neisz · Coon Rapids, US
• Mark Polyak · Minnetonka, US
• Bradford G. Staehle · Minnetonka, US

Key dates

• Filing date: Jul 13, 2001
• Grant date: Nov 23, 2004
• Expiry date: Jan 27, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2002/9528
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A removable stent system and method for extraction of a removable stent from a target site is disclosed. The removable stent includes a removable stent having a collapsible end and a collapsing element configured for coupling with a removal tool. The collapsing element can be configured as a lasso or can be movable between two positions when deployed at a target site in vivo. The removable stent overcomes disadvantages and limitations of previous types of stents as well as overcoming complications during or following stent deployment in vivo. The removable stent further includes features that increase its ease of use and reduce the maneuvering required of devices or tools used to remove the stent. This then decreases the amount of effort required by the physician, the procedure time, and the level of discomfort experienced by a patient during the procedure.