# US 11,998,764 B2 · Extracorporeal focused ultrasound treatment device for pelvic disease > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,764 B2 - Document ID: US11998764B2 - Status: Granted - Kind: B2 - Application number: 16/963,280 - Filed: 2018-09-07 - Published: 2021-11-25 - Granted: 2024-06-04 - Earliest claimed: 2018-01-22 - Assignees: Chongqing Haifu Medical Technology Co., Ltd. - Applicants: Chongqing Haifu Medical Technology Co., Ltd. - Inventors: Hongbing Hu; Fangwei Ye; Bing Fu; Zhengming Cheng; Ying Zou; Hongjun Wen; Xiaobing Wu; Liang Hu; Haoran Huang; Jun Sun; Zheng Hu; Wenying Ma - Web page: https://patentgrep.com/patent/US11998764B2 ## CPC - A61N 7/00: Ultrasound therapy (lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 {; using ultrasound for introducing media into the body A61M37/0092}) - A61N 7/02: Localised ultrasound hyperthermia - A61G 13/009: {Physiotherapeutic tables, beds or platforms; Chiropractic or osteopathic tables (with incorporated massage means A61H2201/0138)} - A61B 2090/378: {using ultrasound} - A61N 2007/0004: {Applications of ultrasound therapy} - A61N 2007/0052: {using the same transducer for therapy and imaging} - A61N 2007/0056: {Beam shaping elements} - A61N 2007/0065: {Concave transducers} - A61N 2007/0069: {Reflectors} - A61N 2007/0091: {with moving parts, e.g. transducers, lenses, reflectors} - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) - A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The present disclosure provides an extracorporeal focused ultrasound treatment device for a pelvic disease. The treatment device includes an ultrasonic transducer and a treatment couch. Sound emitting surface of the ultrasonic transducer is a spherical surface having a first notch, a second notch and a third notch, the first notch and the second notch are respectively positioned at two intersections of the spherical surface and a diameter perpendicular to the main great circle, and the third notch connects the first notch with the second notch; a cross-section of the sound emitting surface parallel to the main great circle is in a shape of an arc; and an ultrasonic wave generated by the sound generation unit is focused at a center of the sphere corresponding to the sound emitting surface. The treatment couch is configured for a human body to lie in a lithotomy position. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein the first notch and the second notch are formed by cutting off cap-like portions from the concave spherical surface by a first plane and a second plane, respectively. ### Claim 3 (depends on 2) The extracorporeal focused ultrasound treatment system of claim 2, wherein the first plane and the second plane are both parallel to the plane where the main great circle is located. ### Claim 4 (depends on 3) The extracorporeal focused ultrasound treatment system of claim 3, wherein a distance between the first plane and the second plane is in a range of 200 mm to 400 mm, so as to enable the sound emitting surface to have an area sufficient to generate ultrasound suitable for treatment, and enable the first notch and the second notch to allow the two legs of the human body to stick out. ### Claim 5 (depends on 3) The extracorporeal focused ultrasound treatment system of claim 3, wherein a distance between the first plane and the plane in which the main great circle is located is equal to a distance between the second plane and the plane in which the main great circle is located. ### Claim 6 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein the diameter of the concave spherical surface is in a range of 420 mm to 600 mm; and within distances of 100 mm to 150 mm from the plane where the main great circle is located respectively at both sides of the main great circle, the central angle corresponding to the arc in the cross-section of the sound emitting surface parallel to the plane where the main great circle is located is larger than 180 degrees and smaller than 300 degrees, so as to enable a part of the sound emitting surface at the central angle exceeding 180 degrees to reflect ultrasound emitted by an opposite part of the sound emitting surface to form a standing wave inside a space enclosed by the sound emitting surface, thereby changing a focal region form of the ultrasound. ### Claim 7 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein each cross-section of the sound emitting surface parallel to the plane where the main great circle is located is in a shape of an arc, and the central angle corresponding to the arc is larger than 200 degrees and smaller than 260 degrees, so as to enable a part of the sound emitting surface at the central angle exceeding 180 degrees to reflect ultrasound emitted by an opposite part of the sound emitting surface to form a standing wave inside a space enclosed by the sound emitting surface, thereby changing a focal region form of the ultrasound. ### Claim 8 (depends on 7) The extracorporeal focused ultrasound treatment system of claim 7, wherein the opening of the arc in each cross-section of the sound emitting surface parallel to the plane where the main great circle is located is oriented in a same direction, and the central angle corresponding to the arc is equal. ### Claim 9 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein the sound emitting surface is symmetric with respect to the plane in which the main great circle is located. ### Claim 10 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein when the human body lies on the treatment couch in the lithotomy position, ultrasound emitted from a first region of the sound emitting surface enters the pelvic cavity through abdomen of the human body; and when the human body lies on the treatment couch in the lithotomy position, ultrasound emitted from a second region of the sound emitting surface enters the pelvic cavity through an area between coccyx and pubic symphysis of the human body. ### Claim 11 (depends on 10) The extracorporeal focused ultrasound treatment system of claim 10, further comprising: at least one of a first B-mode ultrasonic probe configured to emit imaging ultrasound from the first region of the sound emitting surface to the pelvic cavity through the abdomen of the human body to form an image of the pelvic cavity and a second B-mode ultrasonic probe configured to emit imaging ultrasound from the second region of the sound emitting surface to the pelvic cavity through perineum of the human body to form an image of the pelvic cavity. ### Claim 12 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein the treatment couch and the ultrasonic transducer are separated structures; and the extracorporeal focused ultrasound treatment system further comprises a movement unit configured to cause the treatment couch to come closer to or farther away from the ultrasonic transducer. ### Claim 13 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, further comprising: a medium containing unit configured to keep a sound transmission medium between a surface of the human body and the sound emitting surface. ### Claim 14 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, further comprising: a driving unit configured to drive the ultrasonic transducer to move relative to the treatment couch. ### Claim 15 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, further comprising: an imaging unit configured to form an image of the pelvic cavity. ### Claim 16 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein the ultrasound generated by the sound generation unit has a frequency in a range of 0.4 MHz to 1.5 MHz, so as to achieve a good treatment effect on a disease of an organ in the pelvic cavity. ### Claim 17 (depends on 1) The extracorporeal focused ultrasound treatment system of claim 1, wherein the ultrasound generated by the sound generation unit has an acoustical power larger than 0 W and less than or equal to 1200 W, so as to achieve a good treatment effect on a disease of an organ in the pelvic cavity. ### Claim 18 (depends on 17) The extracorporeal focused ultrasound treatment system of claim 17, wherein the acoustical power of the ultrasound generated by the sound generating unit is larger than 0 W and less than or equal to 800 W, so as to achieve the good treatment effect on the disease of the organ in the pelvic cavity.