Please download the dossier by clicking on the dossier button x
×

Method and Apparatus for Replacing a Prosthetic Valve

  • US 20110166636A1
  • Filed: 01/07/2011
  • Published: 07/07/2011
  • Est. Priority Date: 02/27/2007
  • Status: Active Grant
First Claim
Patent Images

1. A method of implanting a replacement prosthetic heart valve within a defective previously implanted prosthetic heart valve, the method comprising:

  • advancing an adapter stent and a replacement prosthetic heart valve through a port between ribs of a patient'"'"'s thorax and through an apex of a left ventricle;

    positioning the adapter stent within the defective previously implanted prosthetic heart valve, the previously implanted prosthetic heart valve having been implanted in an aortic annulus via open heart surgery following removal of a diseased natural aortic valve, the adapter stent comprising an expandable tubular frame having an outer surface for contacting an interior region of the previously implanted prosthetic heart valve, the adapter stent further comprising a flexible annular sealing member disposed along an inner surface of the tubular frame;

    radially expanding the adapter stent to cause the outer surface of the frame to become anchored within and to the interior region of the previously implanted prosthetic heart valve;

    after radially expanding the adapter stent within the previously implanted prosthetic heart valve, positioning the replacement prosthetic heart valve within the expanded adapter stent, the replacement prosthetic heart valve comprising a collapsible and expandable annular frame and a collapsible and expandable valve member mounted within the annular frame, the valve member comprising a tricuspid valve configuration formed with pericardial tissue and configured for allowing blood flow in only one direction when in an expanded condition; and

    radially expanding the replacement prosthetic heart valve to expand within the adapter stent and the previously implanted prosthetic heart valve wherein, when the adapter stent and the replacement prosthetic heart valve are radially expanded within the previously implanted prosthetic heart valve, the flexible annular sealing member provides a seal between the previously implanted prosthetic heart valve and the replacement prosthetic heart valve.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×