| 摘要 |
A device for concrement destruction or crushing is disclosed which comprises an elongate probe adapted to be introduced into the human body, a drive unit that accelerates an impact body and a lever unit comprising at least one single-arm lever which is supported for rotation about an axis of rotation in such a way that it bears, in its home position, on the proximal end surface of the probe in particular, and which is rotated by the hitting impact body such that the lever accelerates the probe, which bears expediently against it, and the probe performs a translational movement causing the destruction or crushing of the concrement by the distal end surface of the probe hitting thereon. A distance (r3) of the center of the bearing surface of the lever in its home position on the proximal end surface from said axis of rotation of the probe is shorter and preferably distinctly shorter than the distance (r1) of the center of the impact area of the impact body on the lever from the axis of rotation, and that the ratio of the distances r1 and r3 is so selected that the probe will reach a maximum translational speed with a maximum transfer of energy from the impact body to the probe.
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