Apparatus and methods for delivering prostheses to luminal bifurcations
AssigneeTriReme Medical, Inc.
InventorsTanhum Feld, Eitan Konstantino
Life of this patent
Estimating the term…
Abstract
A catheter for delivering luminal prostheses comprises a catheter body having an expandable member near a distal end. The prosthesis has a side hole, and a guidewire extends beneath a proximal portion of the prosthesis and over the exterior of the expandable member. A distal end of the guidewire is retracted proximally from the closest point on the side opening to reduce possible interference with catheter advancement.
Claims16
A method for delivering a prosthesis having a side hole to a luminal bifurcation, said method comprising:
- advancing a catheter over a central guidewire through a main lumen to position the prosthesis near the bifurcation;
- advancing a side guidewire through the side hole into a branch lumen at the bifurcation;
- observing radiopaque markers on the side guidewire to determine if the side guidewire is crossing the prosthesis to reach the side branch;
- if the side guidewire is crossing the prosthesis, rotating a proximal end of the catheter to rotate the prosthesis until the side guidewire no longer crosses the prosthesis;
- and
- expanding the prosthesis at the bifurcation with the side hole aligned with the side branch.
A method for delivering a prosthesis having a side hole to a luminal bifurcation, said method comprising:
- advancing a catheter to position the prosthesis near the bifurcation, wherein the catheter is positioned over a central guidewire in a main branch lumen and a side branch guidewire extends through the side hole into a side branch lumen;
- observing radiopaque markers on the side branch guidewire to determine if the side branch guidewire is crossing the prosthesis or central guidewire to reach the side branch;
- if the side branch guidewire is crossing the prosthesis or the central guidewire, rotating a proximal end of the catheter to rotate the prosthesis until the side branch guidewire no longer crosses the prosthesis or central guidewire;
- and
- expanding the prosthesis at the bifurcation with the side hole aligned with the side branch.
Dependencies are inferred from the claim text.