Endospan Ltd.

Medtronic Ventor Technologies Ltd.

Rafi Benary

Yosi Tuval

Alon Shalev

Sagi Raz

First and second stent-grafts are provided. The first stent-graft defines a first lateral opening, and is configured for positioning a first end thereof in a descending aorta, and a second end thereof in one of the branches of an aortic arch, with the first lateral opening disposed in the aortic arch facing upstream. The second stent-graft includes a second generally tubular support element and a second covering element that partially covers the second support element. The first and the second stent-grafts are configured such that the second stent-graft forms a blood-impervious seal with the first stent-graft around the first lateral opening when the second stent-graft is disposed therethrough such that a proximal portion of the second support element is disposed within the first stent-graft. The second covering element does not fully cover the proximal portion, thereby allowing blood flow through the first stent-graft. Other embodiments are also described.

Multi-component stent-graft system for implantation in a blood vessel with multiple branches

A multi-component stent-graft system is provided, which includes a first stent-graft, which is configured to assume radially-expanded and radially-compressed states; and a second stent-graft, which is configured to assume radially-expanded and radially-compressed states. A delivery tool includes an outer tube, in which the first and the second stent-grafts are initially positioned at respective axial sites within the outer tube, in their radially-compressed states without being fixed to each other. Other embodiments are also described.

A multi-component stent-graft system includes a first stent-graft, and second, third, and fourth branching stent-grafts. The first stent-graft is shaped so as to define, when in a radially-expanded state, proximal and distal superior first lateral openings facing in a first radial direction, and a distal inferior first lateral opening facing a second radial direction generally opposite the first radial direction. The second, third, and fourth branching stent-grafts are configured assume radially-expanded states, wherein the first, the second, the third, and the fourth stent-grafts are configured such that the branching stent-grafts form respective blood-impervious seals with the first stent-graft around the distal inferior first lateral opening, the distal superior first lateral opening, and the proximal superior first lateral opening, respectively, when the branching stent-grafts are disposed therethrough, respectively, and the first, the second, the third, and the fourth stent-grafts are in their radially-expanded states.

A multi-component stent-graft system () comprises first, second, and third generally tubular stent-grafts (), which are configured to assume radially-expanded states. The first () is shaped so as to define a first lateral opening () when radially-expanded. The second () is shaped so as to define a second lateral opening () when radially-expanded. The first and second () are configured such that the second () forms a blood-impervious seal with the first () around the first lateral opening () when the second stent-graft () is disposed therethrough, and the first and the second () are radially-expanded. The second and the third () are configured such that the third () forms a blood-impervious seal with the second () around the second lateral opening () when the third () is disposed therethrough, and the second and third () are radially-expanded. Other embodiments also described.

An endovascular sealing stent-graft is configured to initially be positioned in a delivery catheter in a radially-compressed state, and to assume a radially-expanded state upon being deployed from the delivery catheter. The stent-graft includes a structural member, which includes a plurality of structural stent elements, and which, when the stent-graft assumes the radially-expanded state, has a generally tubular shape, and is shaped so as to define at least two elongated indentations, each of which extends rostrally to a rostral end of the structural member, and is tapered in a caudal direction until the indentation converges with the generally tubular shape of the structural member, and each of which has an axial length of at least 2 cm. The stent-graft further includes a fluid flow guide, which is coupled to at least a portion of the structural member, and covers at least a portion of each of the elongated indentations.

Vascular prostheses for treating aneurysms

A multiple-component expandable endoluminal system for treating a lesion at a bifurcation including a self expandable tubular root member having a side-looking engagement aperture, a self expandable tubular trunk member comprising a substantially blood impervious polymeric liner secured therealong; both having a radially compressed state adapted for percutaneous intraluminal delivery and a radially expanded state adapted for endoluminal support.

Growing community of inventors

Tel Aviv, Israel

Rafi Benary