OCCLUSION DEVICE AND METHOD FOR ITS MANUFACTURE

摘要

The present invention relates to an occlusion device (1) consisting of a braiding (2) of thin wires or threads (4) which is given a suitable form in a molding and heat treatment procedure. The occlusion device (1) has a proximal retention area (6) and a distal retention area (8), whereby the ends of the wires or threads (4) converge into a holder (5) in distal retention area (8). A cylindrical crosspiece (10) is furthermore disposed between the proximal and distal retention areas (6, 8). With the objective of providing an occlusion device which positions as flat as possible against the septum at the proximal side of a septal defect in the inserted state, the invention provides for the proximal retention area (6) of the braiding (2) to exhibit a completely closed proximal wall (112) disposed with a continuous surface at the proximal end of the occlusion device (1) which forms the proximal end (12) of said occlusion device (1).

主权项

1. An occlusion device comprising a braiding comprising a plurality of thin wires or threads, said braiding having been given a suitable form in a molding and heat treatment procedure, having a proximal end portion, a distal end portion, and a crosspiece interposed between said proximal end portion and said distal end portion,
wherein the ends of each of the wires or threads converge at the distal end portion, each thread or wire originating in the distal end portion and extending to the proximal end portion before returning to the distal end portion; and wherein the proximal end portion consists of braiding free of discontinuities or ends of the plurality of thin wires or threads that results in a proximal wall having a continuous braided surface.