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Transcatheter valve prosthesis

  • US 9,662,206 B2
  • Filed: 06/13/2012
  • Issued: 05/30/2017
  • Est. Priority Date: 09/12/2011
  • Status: Active Grant
First Claim
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1. A system for implanting a heart valve, comprising:

  • a radially self-expandable tubular body having an inflow end, an outflow end, and a preformed groove (a) disposed in an outer surface of the tubular body between the inflow end and the outflow end, (b) extending at least partially around the tubular body, and (c) having a circumferential opening facially radially outward of the tubular body,the preformed groove being a depression in the outer surface of the tubular body such that the outer surface of the tubular body curves radially inward, andthe preformed groove being disposed in only a center area of the tubular body;

    a valve disposed within and attached to the tubular body; and

    a trapping member configured to form at least a partial loop in a circumferential direction around the preformed groove when the tubular body is fully expanded, wherein;

    the inflow end of the tubular body is self-expandable to a shape that constrains movement of the tubular body in an outflow direction by contact in a flow direction between the inflow end of the tubular body and an annulus of a native heart valve when the tubular body is deployed within a heart and aligned with the native heart valve, andthe trapping member is configured to extend around portions of chordae and/or leaflets of the native heart valve located within the groove when the tubular body is deployed within the patient and aligned with the native heart valve, and constrain movement of the tubular body in a direction opposite the flow direction.

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