Method for retrieving a closure device

US8574264B2 · kind B2 · utility

Assignee

• ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC. · US

Inventors

• David J. Blaeser · Brooklyn Park, US
• Jerome K. Grudem, Jr. · Rogers, US
• Scott A. Olson · Zimmerman, US
• Mark R. Christianson · Plymouth, US
• Scott Hanson · Savage, US
• Edward Anderson · Maple Grove, US
• Patrick P. Russo · Vadnais Heights, US
• Dennis W. Wahr · Ann Arbor, US

Key dates

• Filing date: Sep 16, 2006
• Grant date: Nov 5, 2013
• Expiry date: Mar 22, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00623
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A closure device for sealing a patent foramen ovale (PFO) in the heart includes a left atrial anchor adapted to be placed in a left atrium of the heart, a tether fixedly connected to the left atrial anchor and adapted to extend through the passageway of the PFO, a right atrial anchor adapted to be placed in a right atrium of the heart and moved along the tether, and a lock for securing the position of the right atrial anchor along the tether. The left and right atrial anchors preferably include a plurality of arms formed as loops and may include means for securing each arm in case of fracture in the loop. After the closure device is positioned, a cutting tool may sever the portion of the tether proximal of the right atrial anchor. The closure device can be retrieved during delivery, including by use of a snare catheter.