Abstract: A medical filler delivery assembly includes a micro catheter for delivering filler material such as filamentary material into an aneurysm in a vessel, the assembly also including a positioning mechanism which includes a support element made of knitted wires, as well as an expansion mechanism for expanding the support element within the vessel. The wires form an array of polygonal, preferably rhomboidal cells, the wires being intertwined at their junctions by at least one turn around one another, the intertwined regions extending in the longitudinal direction of the support element. The support element is able to trap the micro catheter in position and in practice such that its distal end is disposed within the aneurysm sac.

Abstract: A filamentary occlusion assembly includes a longitudinal filamentary element of biocompatible material, such as small intestine submucosa. To provide the filamentary element with both longitudinal rigidity and radiopacity, a pliable radiopaque wire is wound around the filamentary element. It is wound such that spaced radiopaque marker regions are formed by winding the radiopaque wire with a small pitch. These are separated by spacer sections where the radiopaque wire is coiled with a much greater pitch. The filamentary occlusion assembly can be delivered using a small diameter catheter to fill an aneurysmal sac.

Abstract: A medical filler delivery assembly includes a micro catheter for delivering filler material such as filamentary material into an aneurysm in a vessel, the assembly also including a positioning mechanism which includes a support element made of knitted wires, as well as an expansion mechanism for expanding the support element within the vessel. The wires form an array of polygonal, preferably rhomboidal cells, the wires being intertwined at their junctions by at least one turn around one another, the intertwined regions extending in the longitudinal direction of the support element. The support element is able to trap the micro catheter in position and in practice such that its distal end is disposed within the aneurysm sac.

Abstract: A medical filler delivery assembly includes a micro catheter for delivering filler material such as filamentary material into an aneurysm in a vessel. The assembly also includes a positioning mechanism which includes a support element made of knitted wires, as well as an expansion mechanism for expanding the support element within the vessel. The support element is able to trap the micro catheter in position and in practice such that its distal end is disposed within the aneurysm sac. The knitted wire configuration of the support element provides sufficient holding force to the distal end of the micro catheter and also has an open structure which permits continuation of fluid flow through the vessel. The entire assembly can be removed from the vessel after the delivery of filamentary material, thereby not retaining within the vessel any foreign object such as a stent.