Eversible branch stent-graft and deployment method

摘要

A method of deploying an eversible branch stent-graft includes deploying the eversible branch stent-graft into a main vessel such that a collateral opening in a main stent-graft of the eversible branch stent-graft is aligned with an ostium of a branch vessel emanating from the main vessel. A branch stent ring suture threaded though outer exposed crowns of an outer stent ring of the branch stent-graft is grasped and pulled through the collateral opening to evert the branch stent-graft into the branch vessel as a branch anchor suture is removed to release a protruding end of a branch stent-graft from a proximal end of the main stent-graft.

主权项

1. A method of deploying an eversible branch stent-graft comprising:
deploying said eversible branch stent-graft into a main vessel such that a collateral opening in a main stent-graft portion of said eversible branch stent-graft is aligned with an ostium of a branch vessel emanating from said main vessel and such that a branch stent-graft portion of said eversible branch stent-graft is in a delivery configuration within a lumen of said main stent-graft portion; grasping a branch stent ring suture threaded though outer exposed crowns of an outer stent ring of said branch stent-graft portion; removing a branch anchor suture to release a protruding end of said branch stent-graft portion from a proximal end of said main stent-graft; and pulling said branch stent ring suture through said collateral opening to evert said branch stent-graft portion by turning an inner surface of said branch stent-graft portion outward such that said branch stent-graft portion is in a deployed configuration and extends from said collateral opening into said branch vessel.