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METHODS AND APPARATUS FOR ENGAGING A VALVE PROSTHESIS WITH TISSUE

  • US 20170231760A1
  • Filed: 12/14/2016
  • Published: 08/17/2017
  • Est. Priority Date: 02/14/2012
  • Status: Active Grant
First Claim
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1. A system for deploying a prosthetic valve, said system comprising:

  • a prosthetic cardiac valve comprising an atrial skirt, a ventricular skirt, and a tab coupled to the ventricular skirt; and

    a delivery system comprising an outer sheath, wherein the prosthetic cardiac valve is carried by the delivery system, and wherein the outer sheath comprises a cam on the outer sheath adjacent a distal end thereof,wherein partial retraction of the outer sheath releases a constraint from the atrial skirt and the ventricular skirt thereby allowing self-expansion thereof, andwherein further retraction of the outer sheath releases a constraint from the tab thereby allowing a tip of the tab to radially self-expand outward forming a window between an edge of the atrial skirt and the tip of the tab while the cam remains engaged with a base portion of the tab such that the tip self-expands to open the window to its maximum size, andwherein further retraction of the outer sheath disengages the cam from the base portion of the tab thereby releasing a constraint therefrom such that the base of the tab radially expands outward and the tip of the tab moves toward the edge of the atrial skirt, at least partially closing the window.

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