Method and apparatus for controlling the coupling quality between a shock wave head of a lithotripter, and the surface of the body of a patient and lithotripter

摘要

A method for controlling the coupling quality between a shock wave head (4) of a lithotripter, and the surface of the body of a patient (14), in which a region (b) of a coupling region (16) of the coupling surface (10) of a koppelbalges (8) of the shock wave head (4), with a free within the koppelbalges (8) propagating light beam (lsa) is illuminated, which is smaller than the coupling region (16), and in which the intensity of a of this region (b) reflected light beam (lsr) is measured and is used to assess the coupling quality.