Closure devices, related delivery methods, and related methods of use

US8372112B2 · kind B2 · utility

Assignee

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

Inventors

• Mark R. Christianson · Plymouth, US
• Scott A. Olson · Zimmerman, US
• Edward Anderson · Maple Grove, US
• Philip J. Haarstad · Eagan, US
• Douglas J. Krone · Rogers, US
• Dennis W. Wahr · Ann Arbor, US
• David J. Blaeser · Brooklyn Park, US

Key dates

• Filing date: Sep 7, 2004
• Grant date: Feb 12, 2013
• Expiry date: May 29, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2/011
• 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 right atrial anchor adapted to be placed in a right atrium of the heart, and a flexible elongate member adapted to extend through the passageway and connect the left and right atrial anchors. A delivery system for delivering the closure device includes a lock push tube for moving a lock along the elongate member and a wire release tube surrounding a wire for controlling movement of the right atrial anchor along the elongate member. The lock push tube and the wire release tube extend in a side-by-side relationship. A handle includes knobs for controlling the lock push tube and the wire. A device for retrieving a mis-deployed closure device includes a shaft portion and an expandable retrieval portion.