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Method and apparatus for the endoluminal delivery of intravascular devices

  • US 9,119,738 B2
  • Filed: 06/28/2011
  • Issued: 09/01/2015
  • Est. Priority Date: 06/28/2010
  • Status: Active Grant
First Claim
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1. A system for treating a native heart valve in a patient using endoluminal delivery through vasculature of a patient to a native heart valve seat, the system comprising:

  • a stent-valve;

    an outer delivery sheath including a distal section, wherein at least a portion of the outer delivery sheath is sized for insertion into the vasculature of the patient, wherein at least a portion of the distal section of the outer delivery sheath is expandable and comprises a plurality of piezo-ceramic elements configured to expand the distal section of the outer delivery sheath upon electrically activating the plurality of piezo-ceramic elements;

    a carrier segment located at a distal portion of a catheter shaft, the carrier segment having an outer surface sized to temporarily hold the stent-valve in the distal section of the outer delivery sheath, wherein at least a portion of the catheter shaft is located within and coaxial to the outer delivery sheath; and

    a delivery segment located coaxially to the outer delivery sheath, the delivery segment having an outer surface sized to radially fit within the stent-valve after detaching the stent-valve from the carrier segment when the stent-valve resides within the distal section of the outer delivery sheath, wherein the delivery segment is configured to deploy the stent-valve at the location of the native heart valve seat.

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