US 2022/0175528 A1 · DELIVERY SYSTEM HAVING AN INTEGRAL CENTERING MECHANISM FOR POSITIONING A VALVE PROSTHESIS IN SITU

Delivery system having an integral centering mechanism for positioning a valve prosthesis in situ

AssigneeMedtronic Vascular, Inc.

InventorsSarah AHLBERG, Marc ANDERSON, Donna BARRETT, Evelyn BIRMINGHAM, Constantin CIOBANU, Kieran CUNNINGHAM, Paul DEVEREUX, Niall DUFFY, John GALLAGHER, Patrick GRIFFIN, Frank HAREWOOD, Gerry MCCAFFREY, DEIRDRE MCGOWAN SMYTH, Bernard MULVIHILL, Herinaina Rabarimanantsoa JAMOUS, Joel RACCHINI, Jeffrey SANDSTROM, Frank WHITE

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Abstract

Embodiments hereof relate to a delivery system for a transcatheter valve prosthesis, the delivery system having an integral centering mechanism to circumferentially center both the delivery system and the valve prosthesis within a vessel at the target implantation site. The centering mechanism may include expandable wings that may be selectively aligned with openings formed through a sidewall of an outer shaft of the delivery system, a coiled wing that may be selectively exposed through an opening formed through a sidewall of an outer shaft of the delivery system, a plurality of elongated filaments extending through a plurality of lumens of an outermost shaft of the delivery system that may be selectively deployed or expanded, an outer shaft that includes at least one pre-formed deflection segment formed thereon, a tool having a deployable lever arm, and/or a plurality of loops deployable via simultaneous longitudinal and rotational movement.

Claims20

Dependent claims

1-34. (canceled)

A delivery system for a valve prosthesis configured for delivery within a vasculature, the delivery system comprising:

an outermost shaft defining a central lumen;
an outer shaft disposed within the central lumen of the outermost shaft, the outer shaft defining a lumen and being movable with respect to the outermost shaft;
an inner shaft disposed within the lumen of the outer shaft, the inner shaft having a distal portion being configured to receive the valve prosthesis thereon;
and
a centering mechanism integrated onto the outermost shaft, the centering mechanism having a delivery configuration and an expanded configuration configured to circumferentially center the delivery system and the valve prosthesis within a native valve annulus in situ, wherein the centering mechanism has a straightened profile when in the delivery configuration and the centering mechanism has a curved, bowed profile radially larger than the outermost shaft and distal to a distal end of the outermost shaft when in the expanded configuration.

2 more elements

Dependencies are inferred from the claim text.