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Steerable assembly for delivering a prosthetic heart valve

  • US 10,517,721 B2
  • Filed: 11/26/2018
  • Issued: 12/31/2019
  • Est. Priority Date: 06/13/2005
  • Status: Active Grant
First Claim
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1. A delivery system for implanting a prosthetic valve within a native aortic valve in a patient, comprising:

  • an outer sleeve comprising a selectively steerable distal portion, the steerable distal portion having an open distal end and a lumen communicating with the open distal end;

    a pull wire having a distal end portion fixedly connected to the steerable distal portion for selectively controlling a curvature of the steerable distal portion, the steerable distal portion being capable of achieving a sufficient curvature to navigate around an aortic arch of the patient;

    a balloon catheter extending through the outer sleeve and through the lumen of the steerable distal portion and out of the open distal end of the steerable distal portion; and

    a prosthetic valve disposed over an expandable balloon along a distal end portion of the balloon catheter, the prosthetic valve comprising an expandable stent portion and a valve structure mounted on the stent portion;

    wherein the distal end portion of the balloon catheter is positioned distal to the open distal end of the steerable distal portion, wherein the open distal end is a free end;

    wherein the prosthetic valve has an outer diameter larger than a diameter of the open distal end such that the prosthetic valve is prevented from moving proximally into the lumen of the steerable distal portion when the balloon is deflated and the prosthetic valve is in a radially compressed state on the deflated balloon;

    wherein the outer sleeve, the balloon catheter and the prosthetic valve are configured for advancement as a single unit through a vasculature of the patient.

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