Abstract: An ultrasound therapy probe is provided comprising a therapy transducer movably mounted on a probe body, an at least partially deformable flexible casing around the therapy transducer, and a guard ring limiting deformations of the flexible casing when the transducer moves with respect to the probe body. The therapy transducer can be moved between a therapy position and a retracted position, the guard ring constituting an end-of-travel stop against which the therapy transducer bears in a therapy position. This ensures that movements of the organ to be treated are kept to a minimum when the therapy transducer moves with respect to the probe body.

Abstract: A urethral probe having a front part and a rear part, and a microwave antenna connected to an external device for generating microwaves. The microwave antenna has its primary active heating part arranged in the urethral probe to be directed onto the prostatic tissues located at least at the level of the bladder neck in the working position.The urethral probe constitutes an essential element of a device for the therapeutic treatment of tissues by thermotherapy, more particularly tissues of the bladder neck of the bladder of a human being.