Abstract: A medical device with a radially compressible and expandable lattice structure (10) contains at least one closed cell (15) delimited in each case by four webs (11, 12, 13, 14) coupled to one another in one piece, of which at least one web (11, 12, 13, 14) is embodied as a stabilisation web (11, 13) with a first web width b1 and at least two further webs (11, 12, 13, 14) are embodied as connecting webs (12, 14) with a second web width b2, wherein the connecting webs (12, 14) are arranged inside the cell (15) so that they lie parallel opposite one another and are connected to one another by the stabilisation webs (11, 13) and wherein the ratio b1/b2 between the first web width b1 and the second web width b2 is at least 1.2.

Abstract: A medical implant having a wall, which can be transferred from a compressed to an expanded state and includes a mesh structure formed of first struts, wherein the mesh structure has closed cells, each having a retaining element, which is adapted to anchor the expanded mesh structure in a vessel. The retaining element has at least two second struts which are connected to one another and form a tip which projects into the cell, and are connected to the first struts of the cell.

Abstract: A medical device for releasing in a hollow organ having a hollow cylindrical body that can be transferred in a compressed state having a reduced diameter and in an expanded state having an enlarged diameter. The body having a stop means at the proximal and/or distal axial end thereof having at least one retaining element connected to the body by a connecting segment. The retaining element and the body are decoupled by the connecting segment such that the retaining element has a smaller curvature in the compressed state than the body. The connecting segment elastically connects the retaining element and the body, wherein the contour of the retaining element in the compressed state of the body protrudes past the outer circumference of the body such that the retaining element is displaceable radially inward relative to the body into a stop position through the inner wall of an insertion system.

Abstract: A stent with a tubular grid structure (10) includes struts (11) and cell openings (12) formed by the struts (11), wherein in the expanded state of the stent the grid structure has a certain outer diameter DA in mm and the struts each have a certain length L in mm, the outer diameter DA of the stent and the length L of the struts being in a certain ratio.