A61B 2018/263

Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; {Couplings or} hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy {the conversion of laser energy into mechanical shockwaves taking place in a liquid}