| 摘要 |
<p>The invention relates to a medical device for loosening concretions in hollow organs of the body, comprising at least one rotational symmetrical lattice structure (10) that is connected to a holding element (20) in a rotationally fixed manner and at least two intersecting filaments (11a, 11b) which are wound about a common rotational axis L, the filaments being connected to each other on at least two connecting points (12a, 12b) that are arranged spaced apart in the longitudinal direction of the lattice structure (10), wherein a first filament (11a) forms a first twist angle a and a second filament (11b) forms a second angle of twist ß that is at least different in sections from the first angle of twist a such that a first connection point (12a) is rotated about the common rotational axis L at the transition of the lattice structure (10) from a radially compressed state into a radially expanded state, or vice versa, relative to a second connecting point (12b). The invention further relates to a method for producing such a device, to a treatment system comprising such a device and to a method for producing a treatment system.</p> |
