Abstract: A therapeutic endocavity probe for treating tissues in particular of the prostate by emission of focused ultrasonic waves, including a support forming a guide tube extended by a mounting head for at least one therapy transducer component with an active surface emitting focused ultrasonic waves and having a spherical front of a total surface area in which a surface window is laid out for mounting an imaging transducer. According to the invention, the therapy transducer component has a front face having a total surface area equal to the sum of the active surface area equal to 1,500 mm2±200 mm2, and of the surface area of the window for letting through the imaging transducer, the ratio of the surface area of the window over the active surface area of the therapy transducer component being less than or equal to 0.45.

Abstract: A therapy apparatus for treating tissues by emission of focused ultrasound waves, includes a probe having a transducer formed by ultrasound elements distributed in several categories (N1 to NM) on a face for emission of focused ultrasound waves which is a surface of revolution generated by the rotation of a curve segment around an axis of symmetry, with the categories of ultrasound elements define independent and substantially contiguous focal volumes, and a control circuit including a signal generator for independently activating, alternately and substantially consecutively, the ultrasound emitter categories in such a way as to ensure continuous insonification in a ring shape originating from different categories of ultrasound emitters.

Abstract: A surgical coagulation instrument having a planar ultrasound transducer without a membrane, mounted in the region of an end of a câble is provided The instrument additionally has a fluid circuit. It is useful for intra-cavity or laparoscopic treatment, without the use of the membrane. The fluid acts simultaneously as an ultrasound coupling fluid and probe cooling fluid.

Abstract: A therapeutic endocavity probe for treating tissues in particular of the prostate by emission of focused ultrasonic waves, including a support forming a guide tube extended by a mounting head for at least one therapy transducer component with an active surface emitting focused ultrasonic waves and having a spherical front of a total surface area in which a surface window is laid out for mounting an imaging transducer. According to the invention, the therapy transducer component has a front face having a total surface area equal to the sum of the active surface area equal to 1,500 mm2 ±200 mm2, and of the surface area of the window for letting through the imaging transducer, the ratio of the surface area of the window over the active surface area of the therapy transducer component being less than or equal to 0.45.