The holmium laser pulsed at 350 microsecond cuts tissue and fragments calculi. It has been assessed for minimally invasive urological intervention. It is useful for partly excising and partly coagulating tumors, incising strictures and the obstructed PUJ. It partly drill and partly fragments urinary calculi however hard. Other lasers are more effective at any one particular application, but this laser is a useful compromise as a multifunctional device.
Graham M. Watson,
"Holmium laser for multifunctional use in urology", Proc. SPIE 2129, Lasers in Urology, (2 May 1994); doi: 10.1117/12.175028; https://doi.org/10.1117/12.175028