USRF Research


An Illustrated Tour of
TransUrethral Microwave Thermotherapy (TUMT)

(From the USRF news note "Prostatron arrives in California!")

Introduction (Fig.1)

TUMT is performed in a single session on an outpatient basis. Anesthesia is not required, though some men prefer to be a bit sedated. The actual treatment procedure takes about one hour, during which the patient, while lying on the treatment table can relax or read.

The system utilizes a special cooling system that allows heating of the prostate, while keeping adjacent tissue cool and untreated.


Enlarging prostate obstructs urethra (Fig.2)

BPH is characterized by excessive prostate tissue growth. Over time, this enlargement of the prostate gland squeezes the urethra, potentially creating a variety of urinary symptoms. These symptoms may include frequency, urgency and straining.


Heat is radiated into prostate tissue (Fig.3)

The Prostatron's TUMT treatment utilizes a system of transurethral radiative heating and a patented cooling system in which water is circulated through the catheter (the tube encasing the microwave antenna) during treatment. This cooling system minimizes patient discomfort and protects the urethral lining from heat during treatment.

The catheter utilized during the Prostatron TUMT treatment incorporates a patented multi-chambered design to allow cooling of the urethra during the warming treatment of the prostate. Thus, a therapeutic level of controlled heat (45 C and above) is safely delivered to targeted areas of the prostate.


Prostate shrinks and urethral compression eases (Figs. 4)

In the weeks following a TUMT treatment, the resulting tissue elimination and resorption by the body leads to a decrease in the urethral obstruction.


Conclusion (Figs. 5)

As a result of the decreased pressure, urine flow improves and BPH symtoms are relieved.

Text and figures adapted from EDAP/Technomed materials

this is a navigational image map, please load this image to continue.