Abstract: Devices and associated methods are disclosed for improving the fixation of the stent graft to the wall of the abdominal aortic neck and to increase the tightness of the aneurysmal sac from the main lumen of the abdominal aorta. Particular embodiments are directed to a bifurcated stent graft system for the treatment of the abdominal aortic aneurysm, which includes an aortic bifurcation segment, two iliac segments and an additional inner segment. The aortic bifurcation segment contains a main tubular body with branched legs at the distal end made of biocompatible fabric material attached to and supported by stents. The proximal end of the aortic bifurcation segment is configured to engage with a part of the aorta, without aneurysmal dilatation, proximal to the renal arteries and contains only a metal expandable frame (for example, a stent), without fabric material, but with fixing pins for engagement with the aortic wall proximal to the renal arteries.

Abstract: Devices and associated methods are disclosed for improving the fixation of the stent graft to the wall of the abdominal aortic neck and to increase the tightness of the aneurysmal sac from the main lumen of the abdominal aorta. Particular embodiments are directed to a bifurcated stent graft system for the treatment of the abdominal aortic aneurysm, which includes an aortic bifurcation segment, two iliac segments and an additional inner segment. The aortic bifurcation segment contains a main tubular body with branched legs at the distal end made of biocompatible fabric material attached to and supported by stents. The proximal end of the aortic bifurcation segment is configured to engage with a part of the aorta, without aneurysmal dilatation, proximal to the renal arteries and contains only a metal expandable frame (for example, a stent), without fabric material, but with fixing pins for engagement with the aortic wall proximal to the renal arteries.

Abstract: Devices and methods are disclosed for preventing distal embolisms during endovascular interventions. Representative devices are kits that include a first catheter comprising a proximal part and distal part having a principal through lumen, at least one lumen for filling at least one balloon, at least one inflated balloon that closes the lumen of the right or left carotid artery, and a proximal end configured to allow blood to flow through the principal lumen but to block the passage of emboli. The kits include a second catheter in the form of a single-lumen tube with a proximal end and a distal end. The proximal and distal parts of the first catheter may have diameters that are sufficient to allow passage through the lumen of the second catheter and may be sufficiently long when combined to allow at least the distal part of the first catheter to extend beyond the limits of the distal end of the second catheter, when the first catheter passes through the second catheter.

Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.

Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) having a tubular wire frame (1) with rows of elongate cells (2) each having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.

Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.

Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) have a tubular wire frame (1) with rows of elongate cells (2) each having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.

Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.

Abstract: A device for implantation in a vessel or hollow organ lumen in a human or animal body, such as a self-expanding stent, a cava filter, an embolizing means or a supporting means, comprises a wire frame with a plurality of interconnected cells made of at least two separate wire sections which are intercrossing at cell junctions and form closed cells. At the cell junctions the wires are knot to form a geometrical locking of the cells so that the wire-shaped cell sides in respective cells are locked at the cell junctions when the wire frame is subjected to pressure acting radially inwards.

Abstract: An expandable endovascular stent comprises a flexible, tubular body (1) with a longitudinal axis, the wall of which is formed by interconnected, closed frame cells (2) arranged with at least two cells adjacent to each other in the circumferential direction. Filament-shaped frame material capable of transmitting compressive forces in the axial direction of the filament extends continuously from one frame cell directly into the frame cell following in the longitudinal direction. The stent can be expanded from a radially compressed state into a state having a larger diameter. In the expanded state of the stent, the pressure transmitting frame material in several of the frame cells (2) forms a heart-like or arrowhead-like shape with two interconnected shorter cell sides (5) positioned opposite to and interconnected with two mutually converging longer cell sides (3).

Abstract: An introducer (10) method of percutaneously deploying a self-expanding stent (14) in a body vessel or duct (43). The stent introducer includes an outer elongated member tube (11) having a passage (12) extending longitudinally therein and operable in a first direction (13) for deploying the self-expanding stent in a collapsed condition from the outer member passage. An inner elongated member (15) is positioned in the outer member passage and is operable in a second direction (16) for deploying the stent from the outer member passage. An interconnection mechanism (17) is connected to the outer and inner members for operation thereof, whereby a stent in a collapsed condition is deployed from the outer member passage to an expanded condition. When deployed, the expanded portion of the stent remains fixedly positioned longitudinally in the body vessel or duct as the remaining portion is deployed from the outer member passage.

Abstract: A medical article for implantation into the vascular system of a patient comprises a self expanding body shaped substantially into the form of a body (1; 2) of revolution, at least part of the surface of which is defined by wire members (3) forming cells of a generally polygonal shape. The body of revolution has a diameter increasing continuously in an axial direction of the body from one end forming an apex (4) towards the opposite end forming a base (5). In a preferred embodiment, the body (1; 2) of revolution is defined by a generatrix forming n-th order curve. The article may comprise two bodies (1; 2) of revolution joined at their apices (4). The article may be used, in particular as an intravenous filter for the capture of thrombi or in combination with an elastic blood impermeable membrane flexibly linked to the apex of the body of revolution as an occlusion device for closing a vessel lumen or defects such as ASD or PDA in vascular walls.

Abstract: A prosthetic device for sustaining a vessel or hollow organ lumen (a stent) has a tubular wire frame (1) with rows of elongate cells (2) having a larger axis and a smaller axis. The cells are arranged with the larger axis in the circumferential direction of the frame (2) and the smaller axis parallel to the axial direction thereof. Each cell is formed by two U-shaped wire sections, and in a plane perpendicular to the longitudinal axis one of the branches of the U-shaped wire sections in one row form together a closed ring-shape (4) which provides the frame (1) with large radial stiffness. In the axial direction the frame (1) has only low stiffness so that it easily conforms to the vascular wall even if this deforms due to external loads. The interconnection between the cells (2) may be flexible.