Techniques of treating patients with electromagnetic radiation

• US 6,301,506 B1
• Filed: 07/06/1999
• Issued: 10/09/2001
• Est. Priority Date: 07/06/1998
• Status: Expired due to Fees

• Current Assignee: I-Health BV
• Original Assignee: Raitec BV
• Inventors: Valk, Johannes Adrianus, den Boer, Willem Maurits Johannes
• Primary Examiner(s): Dvorak, Linda C. M.
• Assistant Examiner(s): Kearney, R.
• Application Number:
  US09/345,117
• Time in Patent Office: 826 Days
• Field of Search: 607/100, 607/45, 607/61, 607/62, 607/96, 607/101, 607/115, 607/144, 607/145, 607/149, 600/26, 600/27, 600/28, 600/9
• US Class Current: 607/100
• CPC Class Codes: A61N 2/02 using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence

Abstract

An electromagnetic apparatus for treating patients. The apparatus comprises an electromagnetic frequency generator and a coil connected thereto for transmitting electromagnetic energy to a body part of a patient. A control connects to the electromagnetic frequency generator and to a number of sensors that register a local skin temperature and/or a skin resistance of the body part. The control contains an algorithm comprising an adjustment module and a treatment module. The adjustment module causes the transmission of electromagnetic energy of different test frequencies while recording with respect to each of the test frequencies corresponding variations observed by the sensors. The adjustment module is further arranged for determining a treatment frequency at which a significant variation is observed with at least one of the sensors. The treatment module implements a treatment schedule that includes transmitting electromagnetic energy to the body part at the treatment frequency during predetermined treatment periods and with a predetermined treatment amplitude.

Claims

1. An apparatus for applying electromagnetic energy to a body part comprising:

a generator means for generating said electromagnetic energy at a plurality of different frequencies;

a coil means connected to said generator means for transmitting said electromagnetic energy to said body part;

a control connected to said generator means;

a sensor means connected to said control for sensing a local skin temperature or a local skin resistance of said body part; and

an algorithm resident in said control, said algorithm comprising an adjustment module means for;

causing said coil means to transmit electromagnetic energy at different test frequencies,

recording with respect to each of said different test frequencies corresponding variations in said local skin temperature and/or said local skin resistance sensed by said sensor means, and

establishing a treatment frequency for said body part as a function of said different test frequencies and a corresponding significant variation of said local skin temperature and/or said local skin resistance.

2. The apparatus of claim 1, wherein said algorithm further comprises a treatment module means for implementing a treatment schedule and causing said coil means to transmit said electromagnetic energy with a predetermined treatment amplitude at said treatment frequency during predetermined treatment periods.

3. The apparatus of claim 2, wherein said treatment module means implements said treatment schedule such that said coil means transmits said electromagnetic energy only at said treatment frequency and varies a duration period of transmission and a corresponding power level of said electromagnetic energy.

4. The apparatus of claim 1, wherein said coil means transmits said electromagnetic energy to said body part with a transmission power in a range of substantially 3 to 20 milliwatts.

5. The apparatus of claim 1, wherein said adjustment module means successively transmits, for short periods of a few seconds each, electromagnetic energy at each of said different test frequencies, said different test frequencies being in a range of substantially 30 to 300 Hz, preferably in the range of substantially 100 to 160 Hz.

6. The apparatus of claim 5, wherein said adjustment module means causes said coil means to transmit a series of spaced pulses of said electromagnetic energy at said different test frequencies, wherein the frequencies of successive ones of said spaced pulses differ by substantially 10 Hz, and wherein said pulses are spaced by at least one minute, and preferably by substantially four minutes.

7. The apparatus of claim 1, wherein said adjustment module means establishes said treatment frequency to be equal to that test frequency at which a corresponding sum of said variations sensed by said sensors has a maximal value.

8. The apparatus of claim 1, wherein said treatment module means causes said coil means to transmit said electromagnetic energy as harmonic waves.

9. The apparatus of claim 1, wherein said treatment module means causes said coil means to transmit said electromagnetic energy as square waves.

10. The apparatus of claim 1, wherein said treatment module means causes said coil means to transmit said electromagnetic energy as saw-tooth waves.

11. A method of applying electromagnetic energy to a body part comprising the steps of:

generating said electromagnetic energy at a plurality of different frequencies;

sensing a local skin temperature or a local skin resistance of said body part;

illuminating said body part with electromagnetic energy at different test frequencies;

recording with respect to each of said different test frequencies corresponding variations in said local skin temperature or said local skin resistance; and

establishing a treatment frequency for said body part, said treatment frequency being a function of a significant one of said variations in said local skin temperature or said local skin resistance and a corresponding one of said different test frequencies.

12. The method of claim 11, further including illuminating said body part with electromagnetic energy at said treatment frequency during predetermined treatment periods and with predetermined treatment amplitudes.

13. The method of claim 12, wherein the step of transmitting said electromagnetic energy during predetermined treatment periods and with predetermined treatment amplitudes includes transmitting said electromagnetic energy with a transmission power in the range of substantially 3 to 20 milliwatts.

14. The method of claim 12, wherein the step of illuminating said body part with electromagnetic energy at said treatment frequency includes transmitting said electromagnetic energy only at said treatment frequency while varying a duration of transmission and a corresponding power level of said electromagnetic energy.

15. The method of claim 11, wherein the step of illuminating said body part with electromagnetic energy at different test frequencies includes successively transmitting, for short periods of a few seconds each, electromagnetic energy at each of said different test frequencies, said different test frequencies being in the range of 30 to 300 Hz, and preferably in the range of substantially 100 to 160 Hz.

16. The method of claim 15, wherein the step of illuminating said body part with electromagnetic energy at different test frequencies includes transmitting a series of spaced pulses of said electromagnetic energy at said different test frequencies, varying the frequencies of successive ones of said spaced pulses by substantially 10 Hz, and spacing said pulses by at least one minute, and preferably by substantially four minutes.

17. The method of claim 11, wherein the step of establishing a treatment frequency for said body part includes establishing said treatment frequency to be equal to that test frequency at which a corresponding sum of said variations in said local skin temperature or said local skin resistance has a maximal value.

18. The method of claim 11, wherein the step of illuminating said body part with electromagnetic energy at different test frequencies includes transmitting said electromagnetic energy as harmonic waves.

19. The method of claim 11, wherein the step of illuminating said body part with electromagnetic energy at said different test frequencies includes transmitting said electromagnetic energy as square waves.

20. The method of claim 14, wherein the step of illuminating said body part with electromagnetic energy at said different test frequencies includes transmitting said electromagnetic energy as saw-tooth waves.