Devices, systems and methods to treat heart failure

US8172896B2 · kind B2 · utility

Assignee

• DC Devices, Inc. · US

Inventors

• Edward McNamara · Chelmsford, US
• David Stephen Celermajer · Sydney, AU
• Stephen J. Forcucci · Arlington, US
• Hiroatsu Sugimoto · Cambridge, US
• Matthew J. Finch · Somerville, US

Key dates

• Filing date: Mar 8, 2010
• Grant date: May 8, 2012
• Expiry date: Mar 8, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/1132
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Several unique intracardiac pressure vents, placement catheters, methods of placement and methods of treating heart failure are presented. The intracardiac pressure vents presented allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms but also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombus or other embolic material from entering the arterial circulation. Retrievability during deployment is improved, in part, by providing at least one segment or portion of the device that is retained within the placement catheter while all other segments or portions of the device are deployed.