Extracorporeal focused ultrasound treatment device for pelvic disease

An extracorporeal focused ultrasound treatment system at least capable of treating a pelvic disease, comprising an ultrasonic transducer and a treatment couch, wherein

• the treatment couch is configured for a human body to lie in a lithotomy position;
• the ultrasonic transducer comprises a sound emitting surface and a sound generation unit, wherein the sound generation unit is configured to generate an ultrasonic wave;
• the sound emitting surface is a concave spherical surface having a first notch, a second notch and a third notch, and the first notch and the second notch are respectively configured for two legs of the human body to stick out of the sound emitting surface;
• and the third notch is configured for an upper part of the human body to stick out of the sound emitting surface;
• the concave spherical surface has one main great circle, and a plane in which the main great circle is located perpendicular to a surface of the treatment couch for the human body to lie thereon;
• and the first notch and the second notch are respectively positioned on two sides of the plane in which the main great circle is located, and the third notch connects the first notch with the second notch;
• the concave spherical surface has a diameter in a range of 400 mm to 800 mm;
• cross sections of the concave spherical surface parallel to the main great circle are all in a shape of an arc;
• a distance from each of a plane in which the first notch is located and a plane in which the second notch is located to the plane in which the main great circle is located is in a range of 100 mm to 200 mm, and two end points of all the arcs form an edge of the third notch, and central angles corresponding to all the arcs are larger than 180 degrees and smaller than 300 degrees;
• and
• the sound emitting surface is capable of reflecting ultrasound, an ultrasonic wave generated by the sound generation unit is focused at a center of the sound emitting surface, and the center is configured to be corresponding to a position of a pelvic cavity of the human body.