Abstract: The invention relates to a balloon catheter, in particular for the widening of stents in fenestrations and for T-branch protheses, being provided with a balloon (4), a supply line in the catheter (2) leading to the balloon (4), which allows the balloon (4) to be pressurized, and a central lumen (3) for a guidewire, with the balloon (4) in the expanded state having at least two areas (P, D, M) of different diameter, with these areas merging into one another by forming a step.

Abstract: Stent graft consisting of a stent (1) comprising a plurality of ring segments (3, 4) having a meandering configuration arranged side by side and connected with each other by connecting webs (6), and at least one membrane (2) covering the entire outer side of the stent (1), being wrapped inwards around the ends of the stent and fixed between loops of ring segments (4) and connecting webs (6) that join the adjacent ring segments (3, 4) with each other, wherein the membrane (2) is fixed between at least two loops of the second ring segment (4), viewed from the ends of the stent (1), and the connecting webs (6) to the neighboring terminal ring segment (3).

Abstract: The invention relates to a balloon catheter, in particular for the widening of stents in fenestrations, being provided with a first inner balloon (4), a second outer balloon (5), with said second balloon (5) completely enclosing the first balloon (4), separate supply lines in the catheter (2) leading to the first (4) and second balloon (5), which allow the balloons (4, 5) to be pressurized independently of one another, a central lumen (3) for a guidewire, wherein in the expanded state, both balloons (4, 5) in the proximal region (P) have a diameter which is enlarged in relation to that of the distal region (D).

Abstract: The invention relates to a double stent comprising 2 coaxially arranged stents, wherein a first membrane is arranged between a first inner stent and a second outer stent and a second membrane is arranged on the second stent and wherein the membrane ends of the first and second membrane are brought together at the ends of the stents and are folded over onto the inside of the first stent and clamped under flexible tongues of the first stent.

Abstract: The invention relates to a double stent comprising 2 coaxially arranged stents, wherein a first membrane is arranged between a first inner stent and a second outer stent and a second membrane is arranged on the second stent and wherein the membrane ends of the first and second membrane are brought together at the ends of the stents and are folded over onto the inside of the first stent and clamped under flexible tongues of the first stent.

Abstract: The invention relates to a balloon catheter, in particular for the widening of stents in fenestrations, being provided with a first inner balloon (4), a second outer balloon (5), with said second balloon (5) completely enclosing the first balloon (4), separate supply lines in the catheter (2) leading to the first (4) and second balloon (5), which allow the balloons (4, 5) to be pressurized independently of one another, a central lumen (3) for a guidewire, wherein in the expanded state, both balloons (4, 5) in the proximal region (P) have a diameter which is enlarged in relation to that of the distal region (D).

Abstract: Stent graft consisting of a stent (1) comprising a plurality of ring segments (3, 4) having a meandering configuration arranged side by side and connected with each other by connecting webs (6), and at least one membrane (2) covering the entire outer side of the stent (1), being wrapped inwards around the ends of the stent and fixed between loops of ring segments (4) and connecting webs (6) that join the adjacent ring segments (3, 4) with each other, wherein the membrane (2) is fixed between at least two loops of the second ring segment (4), viewed from to the ends of the stent (1), and the connecting webs (6) to the neighboring terminal ring segment (3).

Abstract: The invention relates to a balloon catheter, in particular for the widening of stents in fenestrations and for T-branch protheses, being provided with a balloon (4), a supply line in the catheter (2) leading to the balloon (4), which allows the balloon (4) to be pressurized, and a central lumen (3) for a guidewire, with the balloon (4) in the expanded state having at least two areas (P, D, M) of different diameter, with these areas merging into one another by forming a step.

Abstract: An implantable lumen filter (200) is described. The implantable lumen filter includes a body (202) having a proximal end (202a), a distal end (202b), and a generally tapered outer surface (204). The outer surface is formed by a plurality of struts (206a, 206b). The plurality of struts forms a plurality of apertures (210). The apertures are dimensioned to inhibit and/or to lyse particulates of a selected size from passing through the apertures. The body (202) is transitionable from a collapsed state toward a deployed state. The implantable lumen filter includes an engaging portion (220) having a proximal end (220a) and a distal end (220b). The proximal end of the engaging portion is connected to a distal end of the body. The engaging portion has a generally annular shape and is configured to engage an inner surface of a body lumen.

Abstract: A stent-graft including an inner stent having a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns is described. The wall structure of the inner stent has a predetermined length. An outer stent is coaxially arranged around the inner stent and has a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns. The wall structure of the outer stent has a predetermined length and a flexible stretchable material layer arranged between the inner stent and the outer stent. The wall structure of the inner stent has a design differing from the design of the wall structure of the outer stent and the length of the inner stent is equal to the length of the outer stent.

Abstract: The present invention relates to an endoprosthesis having a web structure that is expandable from a contracted configuration to an expanded configuration and that includes a plurality of longitudinally adjacent web rings. Each of the web rings is defined by web elements disposed circumferentially around a longitudinal axis, which are adjoined one to the other at junction bends. A first junction bend in a first web ring is coupled to a second junction bend in a second web ring by a connector which includes three or more struts of essentially equal length that extend circumferentially in essentially parallel directions. The struts of the connector are adjoined in sequence by coupling segments that, in one embodiment of the invention, are arcuate in shape.

Abstract: The invention relates to a stent graft comprising a stent (1) having a plurality of ring segments (3) disposed adjacent to one another and connected to one another and at least one membrane (2) having at least one marginal ring segment (4) having a meandering web configuration, wherein web loops (5) which point inwards or outwards are cut in such a way as to produce spring tabs (6) which are disposed so that they engage positively in the web loops (5) and are resiliently movable against the web configuration, wherein the membrane (2) is gripped between the spring tabs (6) and the web.

Abstract: As described herein, a body lumen filter is provided that includes a body configured to move between a pre-deployed state and a deployed state, a filtering structure operatively associated with the body to filter particulates, and a blending structure operatively associated with the body. The blending structure can be configured to break up at least one of the particulates.

Abstract: The present disclosure is directed to tantalum-alloy products, implantable medical devices that incorporate tantalum-alloy products such as stents or other implantable medical devices, methods of making and/or processing the tantalum-alloy products and implantable medical devices, and methods of using the implantable medical devices. In an embodiment, a stent includes a stent body having a plurality of struts. At least a portion of the stent body is made from a tantalum alloy. The tantalum alloy includes a tantalum content of about 77 weight % (“wt %”) to about 92 wt %, a niobium content of about 7 wt % to about 13 wt %, and a tungsten content of about 1 wt % to about 10 wt %. The tantalum alloy exhibits at least one mechanical property modified by heat treatment thereof, such as yield strength, ultimate tensile strength, or ductility.

Abstract: A vascular prosthesis and method are disclosed comprising a first flexible stent having a lattice structure with a compacted configuration and an expanded configuration, a second flexible stent inside the first flexible stent to form a tubular structure, a first film layer of graft material such as expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, and a second film layer of expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, the second layer having a higher rigidity and a lower plasticity than the first layer.

Abstract: The present invention relates a vascular prosthesis and related assembly methods that includes a plurality of modular segments inter-engaged by flexible, and preferably lockable, inter-engageable elements forming joints or other connector areas. The segments may have a number of different mechanical properties and may be assembled by the clinician, through mechanical or chemical joining, to customize the prosthesis for a specific patient or application.

Abstract: The invention relates to a stent graft comprising a stent (1) having a plurality of ring segments (3) disposed adjacent to one another and connected to one another and at least one membrane (2) having at least one marginal ring segment (4) having a meandering web configuration, wherein web loops (5) which point inwards or outwards are cut in such a way as to produce spring tabs (6) which are disposed so that they engage positively in the web loops (5) and are resiliently movable against the web configuration, wherein the membrane (2) is gripped between the spring tabs (6) and the web.

Abstract: A stent-graft including an inner stent having a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns is described. The wall structure of the inner stent has a predetermined length. An outer stent is coaxially arranged around the inner stent and has a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns. The wall structure of the outer stent has a predetermined length and a flexible stretchable material layer arranged between the inner stent and the outer stent. The wall structure of the inner stent has a design differing from the design of the wall structure of the outer stent and the length of the inner stent is equal to the length of the outer stent.

Abstract: A stent-graft including an inner stent having a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns is described. The wall structure of the inner stent has a predetermined length. An outer stent is coaxially arranged around the inner stent and has a wall structure including juxtaposed strut-patterns with interconnected struts and connectors connecting the strut-patterns. The wall structure of the outer stent has a predetermined length and a flexible stretchable material layer arranged between the inner stent and the outer stent. The wall structure of the inner stent has a design differing from the design of the wall structure of the outer stent and the length of the inner stent is equal to the length of the outer stent.

Abstract: A stent and method for manufacturing a stent that achieves both strength as well as ductility. In the manufacturing process, the material used to form the stent is only partially annealed to lower the grain size across the thickness of the stent. The material is partially annealed either prior to or after the cutting a stent pattern into a tube.