DEVICE FOR TRANSURETHRAL THERMAL THERAPY WITH COOLING BALLOON

摘要

An intraurethral catheter (29) includes an microwave antenna (35) and a cooling lumen structure (64A, 64B, 66A, 66B) substantially surrounding the antenna (35). A cooling balloon (36) partially surrounds the cooling lumens on one side (55) of the catheter (29) adjacent the microwave antenna (35). The cooling balloon (36) improves wall contact between the catheter (29) and a wall of the urethra to improve cooling of the urethra (10). The cooling balloon (36) communicates with the cooling lumen structure (66A, 66B) to permit circulation of cooling fluid through the cooling balloon (36).