Occlusion Device and Method for its Manufacture
First Claim
1. An occlusion device consisting of a holder and a braiding of thin wires or threads, which is given a suitable form in a molding and heat treatment procedure, having a proximal retention area and a distal retention area, wherein the ends of the wires or threads converge into a holder in the distal retention area, and a cylindrical crosspiece interposed between said proximal and distal retention areas, wherein the two retention areas are positioned on the two sides of a shunt to be occluded in a septum usually by way of an intravascular surgical procedure while said crosspiece transverses the shunt, characterized in that the proximal retention area of braiding exhibits a completely closed proximal wall having a continuous surface at the proximal end of the occlusion device which forms the proximal end of said occlusion device.
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Accused Products
Abstract
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).
246 Citations
13 Claims
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1. An occlusion device consisting of a holder and a braiding of thin wires or threads, which is given a suitable form in a molding and heat treatment procedure, having a proximal retention area and a distal retention area, wherein the ends of the wires or threads converge into a holder in the distal retention area, and a cylindrical crosspiece interposed between said proximal and distal retention areas, wherein the two retention areas are positioned on the two sides of a shunt to be occluded in a septum usually by way of an intravascular surgical procedure while said crosspiece transverses the shunt, characterized in that
the proximal retention area of braiding exhibits a completely closed proximal wall having a continuous surface at the proximal end of the occlusion device which forms the proximal end of said occlusion device.
Specification