Some embodiments relate in part to endovascular prostheses and methods of deploying same. Embodiments may be directed more specifically to stent grafts and methods of making and deploying same within the body of a patient. Stent embodiments may include tapered struts for an even distribution of strain. Stent embodiments may also include portions which are enlarged in a circumferential direction which may be configured to stabilize the stent in a constrained state.

A stent graft includes a luminal graft component defining at least one fenestration. At least one ligature traverses the fenestration and at least partially defines an opening within the fenestration that secures a branch prosthesis. The stent graft is implanted in a patient to thereby treat an arterial aneurysm, such as an aortic aneurysm in a region of the aorta that includes at least one arterial branch, including juxtarenal and short-neck aortic aneurysms.

The techniques of this disclosure generally relate to modular stent device and method of deploying the same. The method includes introducing a delivery system including the modular stent device via supra aortic access. The delivery system is advanced into the ascending aorta. Once positioned, the modular stent device is deployed from the delivery system such that an artery leg of the modular stent device engages the brachiocephalic artery and a bypass gate engages the aorta, wherein the artery leg partially collapses the bypass gate. The artery leg has a greater radial force than the bypass gate such that the artery leg remains un-collapsed and opened. Accordingly, blood flow through the artery leg and perfusion of the brachiocephalic artery and preservation of blood flow to cerebral territories including the brain is insured.

The invention includes modifications of a Z stent to allow the top struts of two Z stents deployed in the vena cava in a bilateral relationship, to interleave. One embodiment includes Z stents with angled top surfaces. A second embodiment includes Z stents having an intermediary suture but lacking the top suture in the topmost stent of a stacked stent module.

The disclosure provides for a device and method for treating aortoiliac occlusion disease with the placement of a fenestrated stent system at the aortic bifurcation. The fenestrated stent system includes a tapered fenestrated stent with a fenestration and a common iliac stent that is placed within the fenestration of the fenestrated stent.

A heart valve assembly includes an inner frame comprising a graft covering housing a prosthetic heart valve. The graft covering extends around the prosthetic heart valve for providing sealing to the heart valve, an outer frame formed from a metallic material and defining a gridded configuration, and being secured to the graft covering by a plurality of stitches, and a sealing material positioned externally to the outer frame for providing sealing between the outer frame and a patient's anatomical wall to prevent paravalvular leaks. The sealing material includes a plurality of radially extending fibers that extend outwardly of the outer frame. The graft covering is made of polyester, polytetrafluoroethylene, expanded polytetrafluoroethylene, or a polymer.

A tandem modular endograft includes a main elongate tubular graft body having at least one circumferential inflatable channel disposed towards a proximal portion of the graft body wall and a plurality of circumferential inflatable channels disposed towards a distal portion of the graft body wall. A proximal expansion anchor is disposed at or secured to a proximal neck portion of the graft body wall. First and second elongate tubular stent-graft extensions may be percutaneously disposed into a distal end of the tubular graft body. In combination, proximal portions of the first and second stent-graft extensions are conformable to a shape of the open lumen of the main graft body.

The techniques of this disclosure generally relate to a modular stent device that is deployed into the ascending aorta via femoral access. The modular stent device is a base or anchor component to which additional modular stent devices can be attached to exclude diseased areas of the aorta while at the same time allowing perfusion of the brachiocephalic artery, the left common carotid artery, and/or the left subclavian artery.

A positioning device for a stent includes a positioning member including a handle and an extension secured to the handle wherein the handle and the extension are coaxially connected, and an open end of the extension is provided with a hollow first magnetic member; and a stent inserted into a blood vessel and including a first stent member inserted into an artificial blood vessel, the first stent member being separated into two second stent members inserted into the artificial blood vessel wherein a diameter of the first stent member is greater than that of each second stent member, and a diameter of each second stent member is greater than that of the extension, the stent further comprising at least one second magnetic member on the first stent member proximate an open end thereof, the second magnetic member being configured to attach to the first magnetic member.

A vascular repair device assembly includes a main prostheses, first internal prostheses, an optional second internal prostheses, and at least two sub-prostheses. Methods for delivering vascular repair devices include delivering a vascular repair device through a blood vessel to the aneurysm site, aligning a proximal open end of a main prosthesis cranially to the site of the aneurysm patient and directing a distal end of at least one additional one vascular repair device through a proximal end of at least a first internal lumen, and aligning the proximal end of the additional vascular repair device into a distal end of the at least one sub-prosthesis.