Double Shockwave Lithotripsy Duet Magna has combined electromagnetic technology and the double shockwave concept, allowing for some clear and unique advantages in the field of shockwave lithotripsy and creating the unique Butterfly Focal Area. The Duet Magna was designed to give you the freedom to choose your preferred C-arm fluoroscopy and ultrasound systems. Direx-Initia provides the lithotripsy system's core, the shockwave generator and treatment table, and allows you to select from a variety of supported C-arm fluoroscopy and ultrasound units. The Duet Magna is equipped with two reflectors and performs Double Shockwave Lithotripsy (DSWL) from these two sources. DSWL results in the formation of a unique Butterfly Focal Area that concentrates pressure to the stone from two different angles, and spreads the "head and tail" of the shock wave volume to reduce the risk of kidney damage.