# US 12,109,427 B2 · Aesthetic method of biological structure treatment by magnetic field > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,427 B2 - Document ID: US12109427B2 - Status: Granted - Kind: B2 - Application number: 18/181,777 - Filed: 2023-03-10 - Published: 2023-07-20 - Granted: 2024-10-08 - Earliest claimed: 2016-07-01 - Assignees: BTL Medical Solutions A.S. - Applicants: BTL Medical Solutions A.S. - Inventors: Tomás Schwarz; Ondra Prouza - Web page: https://patentgrep.com/patent/US12109427B2 ## CPC - A61N 2/02: using magnetic fields produced by coils, including single turn loops or electromagnets (A61N2/12 takes precedence) - A61F 7/0053: {Cabins, rooms, chairs or units for treatment with a hot or cold circulating fluid} - A61F 7/007: {characterised by electric heating} - A61N 2/004: {specially adapted for a specific therapy} - A61F 2007/0056: {for cooling} - A61F 2007/0075: {using a Peltier element, e.g. near the spot to be heated or cooled} - A61F 2007/029: {Fat cell removal or destruction by non-ablative heat treatment} - 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) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract In methods for treating a patient, a time varying magnetic field is applied to a patient's body and causes a muscle contraction. The time-varying magnetic field may be monophasic, biphasic, polyphasic and/or static. The method may reduce adipose tissue, improve metabolism, blood and/or lymph circulation. The method may use combinations of treatments to enhance the visual appearance of the patient. ## Claims ### Claim 1 A device for treating a patient, comprising: an applicator comprising: a first energy delivery element configured to provide a time-varying magnetic field to the patient, wherein the time-varying magnetic field has a repetition rate in a range of 1 Hz to 300 Hz and a magnetic flux density in a range of 0.5 Tesla to 7 Tesla; a second energy delivery element configured to apply a radiofrequency field to the patient to cause heating of a target biological structure, wherein the applicator is configured to be coupled to the patient by an adhesive material; a low-frequency generator, wherein the low-frequency generator is coupled to the first energy delivery element and configured to provide a low-frequency signal to the first energy delivery element to generate the time-varying magnetic field; and a high-frequency generator coupled to the second energy delivery element, wherein the high-frequency generator is configured to provide a high-frequency signal for generating the radiofrequency field. ### Claim 2 (depends on 1) The device of claim 1, further comprising a second applicator, the second applicator comprising: a third energy delivery element; and a fourth energy delivery element. ### Claim 3 (depends on 1) The device of claim 1, wherein the first energy delivery element comprises a magnetic coil, and wherein the device further comprises an inlet configured to direct a cooling fluid to cool the magnetic coil. ### Claim 4 (depends on 3) The device of claim 3, wherein the magnetic coil is a flat magnetic coil. ### Claim 5 (depends on 1) The device of claim 1, wherein the second energy delivery element comprises a first radiofrequency electrode of a plurality of radiofrequency electrodes configured to provide a bipolar radiofrequency treatment. ### Claim 6 (depends on 5) The device of claim 5, further comprising: a switching device; and an energy storage device, wherein the low-frequency generator comprises a connection between the switching device and the energy storage device. ### Claim 7 (depends on 1) The device of claim 1, wherein the second energy delivery element comprises a radiofrequency electrode, and wherein the radiofrequency field has a frequency in a range of 500 kHz to 3 GHz. ### Claim 8 (depends on 1) The device of claim 1, further comprising: a second applicator comprising a third energy delivery element. ### Claim 9 (depends on 1) The device of claim 1, wherein the time-varying magnetic field is configured to induce a muscle contraction. ### Claim 10 A device for treating a patient, comprising: a first energy delivery element configured to apply a time-varying magnetic field to the patient, the time-varying magnetic field having a magnetic flux density in a range of 0.1 Tesla to 7 Tesla, wherein the time-varying magnetic field comprises a plurality of biphasic impulses, and wherein each impulse of the plurality of biphasic impulses has an impulse duration in a range of 3 microseconds to 1 millisecond; a low-frequency generator coupled to the first energy delivery element, wherein the low-frequency generator is configured to provide a signal to the first energy delivery element for generating the time-varying magnetic field; and a second energy delivery element configured to apply a radiofrequency field to the patient to cause heating of a target biological structure. ### Claim 11 (depends on 10) The device of claim 10, wherein the first energy delivery element comprises a magnetic coil, and wherein the device further comprises an inlet configured to direct a cooling fluid to cool the magnetic coil. ### Claim 12 (depends on 10) The device of claim 10, wherein the second energy delivery element comprises a first radiofrequency electrode of a plurality of radiofrequency electrodes configured to provide a bipolar radiofrequency treatment. ### Claim 13 (depends on 10) The device of claim 10, further comprising an applicator, the applicator comprising the first energy delivery element, wherein the time-varying magnetic field is configured to induce electric current in a face of the patient. ### Claim 14 (depends on 13) The device of claim 13, wherein the time-varying magnetic field has a maximal value of magnetic flux density derivative in a range of 0.3 kT/s to 800 kT/s. ### Claim 15 (depends on 14) The device of claim 14, further comprising: a switching device; and an energy storage device, wherein the low-frequency generator comprises a connection between the switching device and the energy storage device. ### Claim 16 (depends on 10) The device of claim 10, wherein the magnetic flux density of the time-varying magnetic field is in a range of 0.8 Tesla to 7 Tesla. ### Claim 17 (depends on 10) The device of claim 10, further comprising: a first applicator comprising the first energy delivery element; and a second applicator comprising the second energy delivery element. ### Claim 18 (depends on 10) The device of claim 10, further comprising: a switching device; and an energy storage device, wherein the low-frequency generator comprises a connection between the switching device and the energy storage device. ### Claim 19 (depends on 18) The device of claim 18, wherein the magnetic flux density is in a range of 0.5 Tesla to 7 Tesla, and wherein the time-varying magnetic field is configured to cause a muscle contraction. ### Claim 20 (depends on 10) The device of claim 10, wherein the first energy delivery element comprises a flat magnetic coil. ### Claim 21 A device for treating a patient, the device comprising: an applicator comprising: a first energy delivery element; and a second energy delivery element; a low-frequency generator configured to provide a low-frequency signal to the first energy delivery element, wherein the first energy delivery element is configured to generate a time-varying magnetic field from the low-frequency signal, and wherein the time-varying magnetic field is configured to induce a muscle contraction; and a high-frequency generator configured to provide a high frequency signal to the second energy delivery element, wherein the second energy delivery element is configured to generate a radiofrequency field from the high-frequency signal, and wherein the radiofrequency field is configured to cause heating of a target biological structure, and wherein the applicator is configured to be coupled to a body region of the patient in a static position. ### Claim 22 (depends on 21) The device of claim 21, wherein the first energy delivery element comprises a flat magnetic coil. ### Claim 23 (depends on 22) The device of claim 22, wherein the flat magnetic coil is configured to be cooled. ### Claim 24 (depends on 21) The device of claim 21, wherein the target biological structure comprises adipose tissue. ### Claim 25 (depends on 21) The device of claim 21, wherein the applicator is configured to be coupled to the body region by an adhesive material and in a static position. ### Claim 26 (depends on 21) The device of claim 21, wherein the time-varying magnetic field comprises a biphasic impulse. ### Claim 27 (depends on 26) The device of claim 26, wherein the second energy delivery element comprises a radiofrequency electrode, and wherein the radiofrequency field has a frequency in a range of 500 kHz to 3 GHz. ### Claim 28 (depends on 21) The device of claim 21, wherein the time-varying magnetic field has a magnetic flux density in a range of 0.5 Tesla to 7 Tesla. ### Claim 29 (depends on 21) The device of claim 21, wherein the target biological structure comprises muscle tissue. ### Claim 30 (depends on 21) The device of claim 21, further comprising: a switching device; and an energy storage device, wherein the low-frequency generator comprises a connection between the switching device and the energy storage device.