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External shock wave therapy (ESWT) systems designed to produce shockwaves from electromagnetic generators. These systems typically consist of a generator that produces a magnetic field when an electric current circulates through a coil attached to a thin metallic membrane. A shock wave is then generated when the membrane is repelled by the magnetic field. Electromagnetic ESWT systems are intended to produce mechanical and biological effects on tissues. Dedicated systems intended for external fragmentation of renal and gallbladder stones, for orthopedic use, and also for some other applications (e.g., a few dermatologic conditions). Both dedicated systems are intended to produce mechanical and biologic effects for orthopedic use and other applications. Systems that provide strong mechanical effects (i.e., lithotripters) for the destruction of renal and/or gallbladder stones are also available.
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