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Sizing methods for a valved conduit graft

  • US 10,537,430 B2
  • Filed: 12/18/2017
  • Issued: 01/21/2020
  • Est. Priority Date: 10/26/2012
  • Status: Active Grant
First Claim
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1. A method of sizing a patient'"'"'s aortic valve annulus and two coronary arteries for implant of a composite valved conduit having a prosthetic heart valve on a distal end attached to a conduit graft that extends to a proximal end, comprising:

  • obtaining a sizing tool having a proximal handle and a shaft extending distally therefrom, a heart valve sizer defining an axis and affixed to a distal end of the shaft, and a conduit graft replica defining an axis and mounted on the shaft proximal to the heart valve sizer;

    accessing the patient'"'"'s heart;

    severing the two coronary arteries from the patient'"'"'s ascending aorta;

    resecting a section of the ascending aorta from a location adjacent to the aortic valve annulus to leave a remaining portion;

    advancing the heart valve sizer of the sizing tool to the aortic valve annulus;

    determining the diameter of the aortic valve annulus by inserting the heart valve sizer into the aortic valve annulus;

    assessing whether the severed coronary arteries are long enough to reach the conduit graft replica;

    adding a tubular coronary extension segment to either of the severed coronary arteries that are not long enough to reach the conduit graft replica;

    preparing the composite valved conduit for implant;

    attaching the composite valved conduit between the aortic valve annulus and the remaining portion of the ascending aorta; and

    forming anastomotic connections between the coronary arteries and the conduit graft.

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