Aesthetic method of biologoical structure treatment by magnetic field

• US 9,974,519 B1
• Filed: 08/15/2017
• Issued: 05/22/2018
• Est. Priority Date: 07/01/2015
• Status: Active Grant

• Current Assignee: BTL Medical Solutions As
• Original Assignee: BTL Holdings Limited
• Inventors: Schwarz, Tom{hacek over (s)}, Prouza, Ondra
• Primary Examiner(s): GILBERT, SAMUEL G
• Application Number:
  US15/677,371
• Time in Patent Office: 280 Days
• Field of Search: 600 9- 15
• CPC Class Codes: A61B 8/085 for locating body or organic structures, e.g. tumours, calculi, blood vessels, nodules
• CPC Class Codes: A61B 8/0858 involving measuring tissue layers, e.g. skin, interfaces
• CPC Class Codes: A61B 8/469 for selection of a region of interest
• CPC Class Codes: A61H 2201/0207 heated
• CPC Class Codes: A61H 2201/0214 cooled
• CPC Class Codes: A61H 2201/0242 by a fluid circulating in the apparatus
• CPC Class Codes: A61H 2201/0257 by a heat accumulator, e.g. a sand or liquid reservoir
• CPC Class Codes: A61H 2201/5064 Position sensors
• CPC Class Codes: A61H 2201/5079 Velocity sensors
• CPC Class Codes: A61H 2201/5082 Temperature sensors
• CPC Class Codes: A61H 2201/5092 Optical sensor
• CPC Class Codes: A61H 2207/00 Anti-cellulite devices
• CPC Class Codes: A61H 2230/505 used as a control parameter for the apparatus
• CPC Class Codes: A61H 2230/605 used as a control parameter for the apparatus
• CPC Class Codes: A61H 2230/655 used as a control parameter for the apparatus
• CPC Class Codes: A61H 23/008 using shock waves
• CPC Class Codes: A61H 23/02 with electric or magnetic drive
• CPC Class Codes: A61H 23/0245 with ultrasonic transducers, e.g. piezoelectric
• CPC Class Codes: A61H 5/00 Exercisers for the eyes
• CPC Class Codes: A61N 2/004 specially adapted for a specific therapy
• CPC Class Codes: A61N 2/02 : using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence

Abstract

Methods for treating a patient using time varying magnetic field are described. The treatment methods combine various approaches for aesthetic treatment. The methods are focused on enhancing a visual appearance of the patient. In one embodiment, the method is performed by switching on a device which includes a connection to an energy source, an energy storage device, a switching device and a magnetic field generating device including a core, and applying a time-varying field with a maximal value of magnetic flux density derivative of at least 300 T/s to a muscle of the patient. The diameter of the core is up to 80% of an outer diameter of the magnetic field generating device.

Claims

1. An aesthetic method for treating a patient which increases volume of a muscle of the patient using a device including a connection to an energy source, an energy storage device, a switching device and a magnetic field generating device including a core comprising:

a) switching the switching device on; and

b) applying a time-varying field with a maximal value of magnetic flux density derivative of at least 300 T/s to a muscle of the patient;

wherein a diameter of the core is up to 80% of an outer diameter of the magnetic field generating device.

2. The method of claim 1 wherein a winding area of the magnetic field generating device is in a range of 4 to 7900 cm2.

3. The method of claim 1 wherein a gap between conductors of the magnetic field generating device is up to 50% of a difference between outer and inner radius of the magnetic field generating device.

4. The method of claim 1 wherein a voltage drop in the energy storage device is lower than 40%.

5. The method of claim 1 wherein an operating temperature is not higher than 48°

C.

6. The method of claim 1 wherein a conductor diameter of the magnetic field generating device is not higher than 10 mm.

7. The method of claim 6 wherein an inductance of the magnetic field generating device is in a range of 50 nH to 1 mH.

8. The method of claim 6 wherein the magnetic field generating device includes an insulated wire.

9. An aesthetic method for treating a patient which increases strength of a muscle of the patient using a device including a connection to an energy source, a switching device, an energy storage device and a magnetic field generating device comprising:

a) charging the energy storage device;

b) switching the switching device on;

c) discharging a current pulse of at least 500 A from the energy storage device to the magnetic field generating device; and

d) applying a time-varying magnetic field to the muscle of the patient;

wherein the magnetic field generating device includes a conductor diameter up to 10 mm, and

wherein an inductance of the magnetic field generating device is in a range of 1 to 500 μ

H.

10. The method of claim 9 wherein the energy storage device voltage is at least 500 V.

11. The method of claim 9 wherein a capacitance of the energy storage device is in a range of 5 to 500 μ

F.

12. The method of claim 9 further comprising applying the time-varying magnetic field to the patient with a treatment duty cycle up to 90%.

13. The method of claim 9 wherein the magnetic field generating device includes an insulated wire.

14. The method of claim 9 wherein the operating temperature of a casing is not higher than 56°

C.

15. The method of claim 9 wherein a voltage drop in the energy storage device is up to 40%.

16. An aesthetic method for treating a patient which increases strength and volume of a muscle of the patient using a device including a connection to an energy source, a switching device and a magnetic field generating device comprising:

a) switching the switching device on;

b) generating magnetic pulses with a treatment duty cycle in a range of 10 to 75%; and

c). applying a time-varying field to the muscle of the patient;

wherein an inductance of the magnetic field generating device is in a range of 50 nH to 10 mH.

17. The method of claim 16 wherein the magnetic field generating device includes an insulated wire.

18. The method of claim 17 wherein a maximal value of magnetic flux density derivative is at least 2.5 kT/s.

19. The method of claim 16 wherein a total coil surface is in a range of 5 to 8000 cm2.

20. The method of claim 16 further comprising positioning the magnetic field generating device using a positioning member including at least two degrees of freedom.

21. The method of claim 16 wherein an inner radius of the magnetic field generating device is in a range of 4 to 60% of an outer radius of the magnetic field generating device.

22. The method of claim 16 further comprising repeating the method within two hours.

23. An aesthetic method for treating a patient which increases strength and/or volume of a muscle of the patient and reduces adipose cells in number and/or volume using a device including a connection to an energy source, an energy storage device, a switching device and a magnetic field generating device comprising:

a) generating a magnetic field using the magnetic field generating device; and

b) applying a time-varying magnetic field to the patient;

wherein the time-varying magnetic field is applied to at least one body region including at least one of thighs, saddlebags, buttocks, abdomen, hips, torso and/or arms of the patient; and

wherein a voltage drop in the energy storage device is not higher than 40%.

24. The method of claim 23 wherein the method further comprises discharging the energy storage device to the magnetic field generating device, and

wherein a voltage value of the energy storage device is at least 500 V.

25. The method of claim 23 further comprising applying a pressure to the patient wherein the pressure is in a range of 1 to 50 kPa.

26. The method of claim 23 further comprising applying a pressure of positive peak value up to 15 MPa to the patient for at least 100 ns.

27. The method of claim 23 further comprising applying acoustic energy to the patient wherein a frequency of the acoustic energy is in a range of 0.1 to 20 MHz.

28. The method of claim 23 further comprising applying acoustic energy to the patient wherein a power density 0.1 to 500 W/cm2.

29. The method of claim 23 wherein the magnetic field generating device includes a gap between windings up to 1% of a difference between outer and inner radius of the magnetic field generating device.