IP Library › Granted Patent US 12,336,920
Granted Patent B2
US 12,336,920 · App. 18/482,762 · Granted Jun 24, 2025

Bifurcated endovascular prosthesis having tethered contralateral leg

Inventors: Diego Aristizabal (Alameda, CA); Michael V. Chobotov (Santa Rosa, CA)
Assignee: TriVascular, Inc.
A61F2/856A61F2/07A61F2/95A61F2/954A61F2002/065A61F2002/9511A61F2250/0003A61F2250/0071
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Quick Facts
Patent No.
US 12,336,920
App. No.
18/482,762
Granted
Jun 24, 2025
Kind
B2
Abstract

An endovascular delivery system includes a bifurcated and inflatable prosthesis including a main tubular body having an open end and opposed ipsilateral and contralateral legs defining a graft wall therein between. A tether is disposed securably disposed to the contralateral leg, and the contralateral leg is releasably restrained towards the ipsilateral leg tether to prevent undesirable movement of the contralateral leg. A release wire within the endovascular delivery system releasably retains the tether near the ipsilateral leg.

Claims (21)

1. A method of delivering a prosthesis comprising:

providing a bifurcated prosthesis comprising a main tubular body having an open end and opposed ipsilateral and contralateral legs defining a graft wall therein between, said ipsilateral and contralateral legs having open ends, said ipsilateral leg having a length extending from the open end of the ipsilateral leg to the main tubular body, and said contralateral leg having a length extending from the open end of the contralateral leg to the main tubular body;

providing a delivery catheter comprising an elongate release wire slidably disposed within the delivery catheter, said release wire engaging the contralateral leg and extending the length of the ipsilateral leg from the open end of the ipsilateral leg and into the main tubular body to restrain the contralateral leg to the ipsilateral leg; and

retracting the elongate release wire within the delivery catheter to release the contralateral leg from the ipsilateral leg.

2. The method of claim 1 , wherein the contralateral leg is restricted from significant longitudinal movement so as to prevent bunching up of the contralateral leg.

3. The method of claim 1 , wherein the contralateral leg is restricted from significant rotational movement so as to prevent misalignment within a bodily lumen.

4. The method of claim 1 , wherein the bifurcated prosthesis comprises non-textile polymeric material.

5. The method of claim 4 , wherein the non-textile polymeric material of the bifurcated prosthesis comprises extruded polytetrafluoroethylene.

6. The method of claim 5 , wherein said extruded polytetrafluoroethylene is non-porous polytetrafluoroethylene.

7. The method of claim 1 , wherein the bifurcated prosthesis further comprises a metallic expandable member securably disposed at or near the open end of the main tubular body of said bifurcated prosthesis.

8. The method of claim 1 , wherein the elongate release wire is slidably disposed within the delivery catheter, within a hole of the contralateral leg.

9. The method of claim 8 , wherein the contralateral leg comprises a hole through the graft wall at a location near the open end.

10. The method of claim 8 , wherein the contralateral leg comprises a tether, and the elongate release wire is slidably disposed within a hole of the tether.

11. A method of manufacturing an endovascular prosthesis comprising

providing a bifurcated prosthesis comprising a main tubular body having an open end and opposed ipsilateral and contralateral legs defining a graft wall therein between, said ipsilateral and contralateral legs having open ends, said ipsilateral leg having a length extending from the open end of the ipsilateral leg to the main tubular body, and said contralateral leg having a length extending from the open end of the contralateral leg to the main tubular body;

providing a delivery catheter comprising an elongate release wire slidably disposed within the delivery catheter;

extending the elongate release wire the length of the ipsilateral leg from the open end of the ipsilateral leg and into the main tubular body, and engaging release wire with the contralateral leg to restrain the contralateral leg to the ipsilateral leg.

12. The method of claim 11 , comprising placing the elongate release wire through a hole of the contralateral leg.

13. The method of claim 12 , comprising placing the elongate release wire through a hole through the graft wall at a location near the open end.

14. The method of claim 12 , wherein the contralateral leg comprising a tether, and placing the elongate release wire through a hole on the tether a tether.

15. The method of claim 11 wherein, retracting the elongate release wire within the delivery catheter releases the contralateral leg from the ipsilateral leg.

Assignments (2)
SECURITY INTEREST Recorded Aug 16, 2024
From: TRIVASCULAR, INC.
To: FIRST-CITIZENS BANK & TRUST COMPANY
Reel/Frame 068306/0771 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2024
From: ARISTIZABAL, DIEGO; CHOBOTOV, MICHAEL V.
To: TRIVASCULAR, INC.
Reel/Frame 067505/0530 →
Continuity (7)
Continuation 17313509 · May 6, 2021
Continuation 16267264 · Feb 4, 2019
Continuation 15299542 · Oct 21, 2016
Continuation 14823076 · Aug 11, 2015
Continuation 13803067 · Mar 14, 2013
Provisional Application 61660105 · Jun 15, 2012
Related Publication 20240293242A1 · Sep 5, 2024
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