# US 12,636,522 B2 · Contour-adaptive ultrasound system for fat tissue treatment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,636,522 B2 - Document ID: US12636522B2 - Status: Granted - Kind: B2 - Application number: 19/314,663 - Filed: 2025-08-29 - Published: 2026-01-22 - Granted: 2026-05-26 - Earliest claimed: 2018-08-02 - Assignees: Sofwave Medical Ltd. - Applicants: Sofwave Medical Ltd. - Inventors: Ariel Sverdlik; Shimon Eckhouse; Assaf Gelstein - Web page: https://patentgrep.com/patent/US12636522B2 ## 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 - A61B 18/18: by applying electromagnetic radiation, e.g. microwaves - A61N 2007/0008: {Destruction of fat cells} - A61N 2007/0073: {using multiple frequencies} - A61N 2007/0078: {with multiple treatment transducers} - A61N 2007/0095: {by modifying an excitation signal} - A61N 2007/025: {interstitial} - 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) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A system for treating fat tissue, including: an ultrasound applicator, including: two or more ultrasound transducers configured to generate and direct ultrasonic waves to a selected tissue volume including fat tissue; a control unit, including: a control circuitry electrically connected to the two or more ultrasound transducers, wherein the control circuitry is configured to activate the two or more ultrasound transducers to heat the selected tissue volume. ## Claims ### Claim 1 A system for fat tissue treatment, the system comprising: a plurality of piezoelectric (PZT) plates configured to generate ultrasound waves; a plurality of electrical connections associated with each of plurality of PZT plates, wherein the plurality of PZT plates and the plurality of electrical connections form a plurality of ultrasound transducers; one or more joints interconnecting the plurality of ultrasound transducers side-by-side in a linear arrangement to allow relative movement of at least some of the plurality of ultrasound transducers to conform to a contour of a treatment region, the treatment region including at least one of an abdomen, a thigh, or a buttocks; a strap configured to fasten the plurality of ultrasound transducers to the treatment region, such that the strap and the ultrasound transducers form a belt-shaped ultrasound applicator; and electrical circuitry configured to cause controlled emission of ultrasonic waves via the belt-shaped ultrasound applicator with intensity values in a range of 5-90 W/cm2 and frequency values in a range of 1-7 MHz to deliver ultrasonic energy to fat tissue at a depth of 2-20 mm beneath a skin surface of the treatment region to thereby heat the fat tissue to a temperature between 45° C. and 85° C. ### Claim 2 (depends on 1) The system of claim 1, wherein a number of ultrasound transducers in the linear arrangement is adjustable based on the treatment region. ### Claim 3 (depends on 1) The system of claim 1, wherein the plurality of ultrasound transducers includes at least four ultrasound transducers. ### Claim 4 (depends on 1) The system of claim 1, wherein the plurality of ultrasound transducers includes at least six ultrasound transducers. ### Claim 5 (depends on 1) The system of claim 1, wherein the electrical circuitry is further configured to activate two or more of the plurality of ultrasound transducers in alternation according to a sequence stored in memory. ### Claim 6 (depends on 1) The system of claim 1, wherein a thickness of each of the plurality of ultrasound transducers is in a range of 0.1 mm to 7 mm. ### Claim 7 (depends on 1) The system of claim 1, wherein the plurality of ultrasound transducers are configured to transmit the ultrasonic waves through a cover in contact with the skin surface. ### Claim 8 (depends on 1) The system of claim 1, wherein the electrical circuitry is further configured to cause the PZT plates to generate ultrasonic waves that are not focused to converge in two dimensions. ### Claim 9 (depends on 1) The system of claim 1, wherein the electrical circuitry is further configured to cause the PZT plates to generate ultrasonic waves having intensity values in a range of 40-90 W/cm2 and frequency values in a range of 1-5 MHz. ### Claim 10 (depends on 1) The system of claim 1, wherein the electrical circuitry is further configured to cause the PZT plates to generate ultrasonic waves for delivering energy in a range of 1 to 18 Joules to the fat tissue. ### Claim 11 (depends on 1) The system of claim 1, wherein the electrical circuitry is further configured to determine a depth of the fat tissue relative to the skin surface. ### Claim 12 (depends on 1) The system of claim 1, wherein the electrical circuitry is further configured to generate ultrasonic waves targeted to different tissue layers. ### Claim 13 (depends on 12) The system of claim 12, wherein the electrical circuitry is further configured to combine fat reduction treatment with skin tightening treatment. ### Claim 14 (depends on 1) The system of claim 1, wherein the electrical circuitry includes at least one processor configured to control the emission of ultrasonic waves via the plurality of PZT plates. ### Claim 15 A method for fat tissue treatment, the method comprising: placing a plurality of interconnected ultrasound transducers in a side-by-side linear arrangement on a non-flat tissue surface of epidermis, the non-flat tissue surface being associated with at least one of an abdomen, a thigh, or a buttocks, wherein each of the plurality of ultrasound transducers include at least one piezoelectric (PZT) plate, and wherein the plurality of ultrasound transducers are connected in series in a manner permitting the linear arrangement to flex in accordance with a contour of the non-flat tissue surface; fastening the plurality of ultrasound transducers to the non-fat tissue surface with a strap, such that the strap and the ultrasound transducers form a belt; and causing controlled emission of ultrasonic waves via the plurality of PZT plates with intensity values in a range of 5-90 W/cm2 and frequency values in a range of 1-7 MHz to deliver ultrasonic energy to fat tissue at a depth of 2-20 mm beneath a skin surface of the treatment region to thereby heat the fat tissue to a temperature between 45° C. and 85° C. ### Claim 16 (depends on 15) The method of claim 15, wherein causing the controlled emission includes setting at least one of intensity values or frequency values of the ultrasonic waves according to an estimated depth of the fat tissue. ### Claim 17 (depends on 15) The method of claim 15, wherein causing the controlled emission includes activating at least one ultrasound transducer of the plurality of ultrasound transducers, while at least one other of the ultrasound transducers remain inactive. ### Claim 18 (depends on 15) The method of claim 15, wherein causing the controlled emission includes activating the at least some of the PZT plates for a duration of at least two seconds without causing damage to adjacent tissue layers near the fat tissue. ### Claim 19 (depends on 15) The method of claim 15, wherein causing the controlled emission includes activating the plurality of PZT plates in alternation to continuously heat the fat tissue while keeping a temperature of the skin surface of the treatment region below a predetermined value. ### Claim 20 A non-transitory computer readable medium containing instructions that when executed by at least one processor cause the at least one processor to perform operations for fat tissue treatment, the operations comprising: activating a plurality of piezoelectric (PZT) plates associated with a plurality of electrical connections, wherein the plurality of PZT plates and the plurality of electrical connections form a plurality of ultrasound transducers flexibly connected side-by-side in a linear arrangement to allow relative movement of at least some of the plurality of ultrasound transducers to conform to a contour of a treatment region, the treatment region including at least one of an abdomen, a thigh, or a buttocks; and causing controlled emission of ultrasonic waves via the plurality of PZT plates with intensity values in a range of 5-90 W/cm2 and frequency values in a range of 1-7 MHz to deliver ultrasonic energy to fat tissue at a depth of 2-20 mm beneath a skin surface of the treatment region while at least some of the plurality of ultrasound transducers conform to the contour of the treatment region, to thereby heat the fat tissue to a temperature between 45° C. and 85° C.