Safety and Efficacy Study for the Treatment of BPH (Enlarged Prostate)

"The Rezūm System uses sterile water vapor (steam) to treat BPH by delivering targeted, controlled doses of stored thermal energy directly to the transition zone of the prostate gland.~A narrow sheath, similar in shape and size to a cystoscope, is inserted transurethrally and positioned within the prostatic urethra between the bladder neck and the verumontanum.~A thin needle is deployed through the urethra into the transition zone, and a very short (8-10 second) treatment of water vapor is delivered directly into the hyperplastic tissue and immediately disperses through the tissue interstices.~Upon contact with the tissue, the vapor condenses, or phase shifts, into its liquid state, releasing the stored thermal energy contained within the vapor. This thermal energy is released directly against the walls of the tissue cells within the treatment zone, gently and immediately denaturing the cell membranes, thereby causing instantaneous cell death."

Endoscopy of the urinary bladder via the urethra.