Intravascular device for anchoring a graft to tissue
AssigneeEndoron Medical Ltd.
InventorsNir D. Dahan, Eyal Teichman, Tanhum Feld
Life of this patent
Estimating the term…
Abstract
Tissue anchoring devices including a radially expandable frame having a plurality of longitudinal struts and a plurality of deployable anchors configured to penetrate a stent graft and tissue, and systems for delivering and deploying the tissue anchoring devices at a target location are provided. The adjacent longitudinal struts are interconnected by a plurality of expandable struts, and a ring of these expandable struts may be angled radially outward relative to a remainder of the expandable struts in an expanded configuration. Each of the plurality of anchors may include one or more anti-buckling mechanisms to facilitate penetration into the graft/tissue.
Claims29
A tissue anchoring device for securement within a blood vessel, the tissue anchoring device comprising:
- a radially expandable frame configured to transition between a collapsed configuration and an expanded configuration, the frame comprising a distal portion, a proximal portion, and a plurality of longitudinal struts interconnected by a plurality of expandable struts,
- wherein, in the expanded configuration, a ring of expandable struts of the plurality of expandable struts is angled radially outward relative to a remainder of the plurality of expandable struts, the distal portion and the ring of expandable struts configured to transition to the expanded configuration such that the ring of expandable struts is sized and shaped to contact an inner wall within the blood vessel to stabilize the frame for full deployment when the proximal portion transitions from the collapsed configuration to the expanded configuration,
- wherein peaks of the ring of expandable struts are configured to face in a distal direction and peaks of the proximal-most expandable struts at a proximal end of the tissue anchoring device of the plurality of expandable struts are configured to face in a proximal direction such that a distance between the peaks of the ring and the peaks of the proximal-most expandable struts decreases when the frame is expanded,
- wherein the peaks of the ring of expandable struts are longitudinally aligned with the peaks of the proximal-most expandable struts, and
- wherein, in the expanded configuration, the proximal-most expandable struts and the distal-most expandable struts at a distal end of the tissue anchoring device of the plurality of expandable struts are in the same radial plane.
Dependencies are inferred from the claim text.