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Hinged transcatheter prosthetic heart valve delivery system

  • US 10,368,989 B2
  • Filed: 04/08/2015
  • Issued: 08/06/2019
  • Est. Priority Date: 04/17/2014
  • Status: Active Grant
First Claim
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1. A delivery device for implanting a stented prosthetic heart valve, the device comprising:

  • an outer sheath;

    an inner shaft disposed within the outer sheath;

    a deflection assembly attached to the inner shaft and including;

    a plurality of stacked hinge segments, including a proximal-most hinge segment and a distal-most hinge segment, wherein each of the hinge segments are discretely formed as a solid body, wherein each of the hinge segments defines opposing, first and second major surfaces and have complimentary engagement features by which immediately adjacent ones of the hinge segments interface with, and can articulate relative to, one another, wherein the complimentary engagement features include a first tab and a first groove and further wherein the first tab is formed as a projection along the first major surface and the first groove is formed as a recess in the second major surface;

    wherein the first tab can slide within one adjacent first groove with respect to a central axis of the deflection assembly;

    further wherein each second major surface includes a platform region oriented generally perpendicular with respect to the central axis and each second major surface includes a spine;

    further wherein each spine represents a continuation of the second major surface from the platform region;

    further wherein the platform region is opposite the complimentary engagement features;

    further wherein the platform region tapers in thickness from the complimentary engagement features;

    a joiner hub connected to the inner shaft and interfacing with the proximal-most hinge segment,a leading hub interfacing with the distal-most hinge segment; and

    a support shaft attached to and extending distally from the leading hub;

    wherein the delivery device is configured to provide a loaded state in which a stented prosthetic heart valve is compressed over the support shaft and retained within a capsule of the outer sheath;

    and further wherein a hinge region of the deflection assembly is configured to be deflected by a user to change a spatial orientation of the support shaft relative to the inner shaft while the delivery device is in the loaded state.

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