Stent migration device and method
AssigneeMedtronic Vascular, Inc.
InventorsMartin Willard, Benjamin J. Breit, James Griffin
Life of this patent
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Abstract
A method of anchoring a prosthesis includes deploying the prosthesis in a vessel. A delivery system including an anchor constrained within a delivery sheath is advanced to the prosthesis. The prosthesis and a vessel wall of the vessel are penetrated with a leading tip of an exterior tine of the anchor, wherein the exterior tine unfolds upon passing through the prosthesis and the vessel wall. An interior tine is deployed within the prosthesis and vessel wall. In the final deployed state, the exterior tine is exterior to and adjacent the vessel wall, the interior tine is interior to and adjacent the prosthesis, and a tine connector of the anchor extends through the vessel wall and the prosthesis.
Claims15
A delivery system comprising:
- an anchor comprising:
- an exterior tine;
- an interior tine comprising a leading tip comprising a non-penetration feature, the non-penetration feature comprising a ball end having a diameter larger than a diameter of the interior tine;
- and
- a tine connector extending between the exterior tine and the interior tine, the anchor being integral;
- wherein the exterior tine comprises:
- a leading tip comprising a sharp point;
- and
- a rear tip.
A delivery system for anchoring a prosthesis to a vessel, the delivery system comprising:
- an anchor comprising:
- an exterior tine comprising a leading tip comprising a sharp point configured to penetrate the prosthesis and a vessel wall of the vessel;
- an interior tine comprising a leading tip comprising a non-penetration feature, the non-penetration feature comprising a deflected end that curves away from the exterior tine when the anchor is in a relaxed state;
- and
- a tine connector extending between the exterior tine and the interior tine.
Dependencies are inferred from the claim text.