Systems and methods of treating malfunctioning cardiac valves

US11219522B2 · kind B2 · utility

Assignees

• THE JOHNS HOPKINS UNIVERSITY · US
• Boston Scientific Scimed, Inc. · US

Inventors

• Ramji Rengarajan · Santa Rosa, US
• Victor San Hou Yu · Tangxia, CN
• Kalyna L. Sconzert · Minneapolis, US
• Tom Jancaric · Maple Grove, US
• Reggie Roth · Monticello, US
• James K. Cawthra, Jr. · Ramsey, US
• Dennis B. Werner · Big Lake, US
• Jason A. Kilvington · Shoreview, US
• Umang Anand · Plymouth, US
• George L. Coles, Jr. · Baltimore, US
• James D. Beaty · Wiesbaden, DE
• Keith Bulkin · New Market, US
• Joseph A. Walters · Aberdeen, US
• Timothy P. Harrigan · Franklin, US
• Kenton J. Zehr · Rochester, US
• Todd Christopher Crawford · Baltimore, US

Key dates

• Filing date: May 25, 2018
• Grant date: Jan 11, 2022
• Expiry date: Aug 3, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0098
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A buoy system for treating cardiac valve regurgitation comprising a movable plug having atrial and ventricular ends, wherein a through-hole passes from the atrial to the ventricular end, wherein during systole, the plug travels toward a cardiac atrium, wherein during diastole, the plug travels into a cardiac ventricle; a tether having atrial and ventricular ends, wherein the tether passes through the through-hole of the moving plug, wherein the atrial end of the tether projects into an atrium, wherein the atrial end of the tether includes a cap to engage a delivery tool; at least one distal anchor located in the ventricle, wherein the distal anchor is coupled to the ventricular end of the tether, and wherein the system is percutaneously delivered and optionally recaptured via catheter and recapture tool at the cap of the tether, respectively.