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Sizing catheters, methods of sizing complex anatomies and methods of selecting a prosthesis for implantation

  • US 10,322,000 B2
  • Filed: 04/05/2018
  • Issued: 06/18/2019
  • Est. Priority Date: 04/05/2017
  • Status: Active Grant
First Claim
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1. A method of selecting a prosthesis for implantation within a lumen of a patient'"'"'s anatomy comprising:

  • providing a lumen sizing device comprising;

    a handle assembly,a catheter extending from the handle assembly,a distal sizer positioned on the catheter proximal a distal end of the catheter, anda proximal sizer positioned on the catheter and spaced proximally from the distal sizer;

    delivering the proximal and distal sizers to a target site within the lumen;

    determining a first lumen dimension proximate the distal sizer, determining a second lumen dimension proximate the proximal sizer, and determining a distance between the distal and proximal sizers;

    creating a three-dimensional model of the target site of the lumen based on a diameter of the first lumen, a diameter of the second lumen, and the distance between the first and second lumen diameters;

    determining a plurality of potential prosthesis deployment positions and axis orientations relative to the three-dimensional model;

    conducting a geometric fit analysis by iteratively comparing the geometry of a plurality of differently sized prostheses to the plurality of potential prosthesis deployment positions and axis orientations to identify one or more appropriately sized prostheses based on one or more geometric fit parameters; and

    conducting a biomechanical interaction analysis between the one or more appropriately sized prostheses and the patient'"'"'s anatomy to select a prosthesis for implantation.

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