| 摘要 |
An occlusion element (1) for unwanted openings in the heart is provided. The braid forming the occlusion element (1) is radially constricted in a middle area (3) that passes through the opening in the heart when it is in the position of use, such that, on both sides of this constricted middle area (3), braided occlusion discs (4) and (5) are formed, which engage on both sides over the edges of an unwanted opening in the heart in the position of use. In the starting position, prior to the constriction of the middle area (3), a tubular braid is formed with a double wall along at least part of its axial extent, having a first braid portion (6) of smaller cross section surrounded at a distance on the outside by a second braid portion (7) of greater cross section. The filaments or wires (2) of the two braid portions (6) and (7) continue into one another at a common end face (8) or are connected in one piece, such that the constriction or compression results in at least one smooth, double-walled occlusion disc (7) whose outside wall is formed by the common end face (8) or includes the latter.
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