Minimally invasive percutaneous nephro litholapaxy (PCNL) with Sphinx jr. Holmium laser is an evolving technology. Stone fragmentation and dusting by Sphinx jr. Holmium laser is superior to conventional mechanical lithotripsy technologies. The laser device is much lighter, less bulky and thinner compared to mechanical energy sources thus improving precision and handling. Patient safety, patient recovery and procedural performance benefits from improved precision of the laser procedure. Complementary products by LISA are high Quality Laser fibres and LISA ScopeLine endoscopes, cameras and light sources.