Trial of Ureteroscopy vs Steerable Continuous Flow Aspiration Technology

Inclusion Criteria: * Candidate for ureteroscopy with laser lithotripsy * Be willing and able to return for and respond to all study-related follow up procedures * Have been informed of the nature of the study and has provided informed consent using the IRB approved informed consent (ICF) Exclusion Criteria: * Untreated urinary tract infection at the time of the index procedure * Significant comorbidities * Bladder, ureteral or kidney abnormalities * Pregnant individuals * Unable to meet the treatment and follow up protocol requirements