The purpose of the study is to evaluate the safety and effectiveness of a minimally invasive surgical procedure in up to 109 male patients. The ProACT device is designed to treat men who have stress urinary incontinence arising from intrinsic sphincter deficiency following an operation performed on the prostate for cancer or for benign prostatic hyperplasia. Two adjustable balloons (one on each side of the urethra) are implanted to treat urinary stress incontinence.