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1. (WO2013155474) PERCUTANEOUS HEART VALVE DELIVERY SYSTEMS

Pub. No.:    WO/2013/155474    International Application No.:    PCT/US2013/036469
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Sat Apr 13 01:59:59 CEST 2013
IPC: A61F 2/82
A61M 25/01
A61F 2/24
Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventors: KHERADVAR, Arash
KELLY, Gregory
GHARIB, Morteza
Title: PERCUTANEOUS HEART VALVE DELIVERY SYSTEMS
Abstract:
Embodiments described herein address the need for improved catheter devices for delivery, repositioning and/or percutaneous retrieval of the percutaneously implanted heart valves. One embodiment employs a plurality of spring-loaded arms releasably engaged with a stent frame for controlling expansion for valve deployment. Another embodiment employs a plurality of filaments passing through a distal end of a pusher sleeve and apertures in a self-expandable stent frame to control its state of deployment. With additional features, lateral positioning of the stent frame may also be controlled. Yet another embodiment includes plurality of outwardly biased arms held to complimentary stent frame features by overlying sheath segments. Still another embodiment integrates a visualization system in the subject delivery system. Variations on hardware and methods associated with the use of these embodiments are contemplated in addition to those shown and described.