ELECTROMAGNETIC STIMULATION DEVICE FOR CHANGING NERVE THRESHOLD

• US 20150100112A1
• Filed: 10/09/2013
• Published: 04/09/2015
• Est. Priority Date: 10/09/2013
• Status: Active Grant

• Current Assignee: GiMer Medical Co., Ltd.
• Original Assignee: GiMer Medical Co., Ltd.
• Inventors: Chang, Chi-Heng, Lin, Wei-Tso, Cheng, Chan-Yi, Lin, Chii-Wann
• Granted Patent: US 9,526,889 B2
• Time in Patent Office: Days
• US Class Current: 607/118
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: A61N 1/06 for high-frequency therapy
• CPC Class Codes: A61N 1/36071 Pain
• CPC Class Codes: A61N 1/3616 Voltage density or current density
• CPC Class Codes: A61N 1/36171 Frequency

Abstract

The electromagnetic stimulation device contains at least a positive electrode and at least a negative electrode. An insulating gap having width of a first distance is maintained between the positive and negative electrodes. The positive and negative electrodes are at least at a second distance away from a nerve to be stimulated. A preset voltage is applied to the positive and negative electrodes so that a low-power, low-temperature, high-frequency electromagnetic field covering and stimulating the nerve is produced between the positive and negative electrodes. By the stimulation of the low-power, low-temperature, high-frequency electromagnetic field, the nerve'"'"'s threshold is increased, the nerve'"'"'s transmission capability is reduced, and therefore the nerve pain is effectively eased.

Claims

1. An electromagnetic stimulation device for changing nerve threshold, comprising at least a positive electrode and at least a negative electrode, wherein

the positive and negative electrodes is separated by a first distance;

the positive and negative electrodes are at least at a second distance away from a nerve to be stimulated;

a preset voltage is applied to the positive and negative electrodes so that an electromagnetic field covering and stimulating the nerve is produced between the positive and negative electrodes; and

the preset voltage is no more than 10V and has a frequency between 200 KHz and 800 KHz.

2. The electromagnetic stimulation device according to claim 1, wherein the preset voltage is between +3V and +10V, or between −

3V and −

10V; and

has a frequency between 200 KHz and 800 KHz.

3. The electromagnetic stimulation device according to claim 1, wherein each of the positive and negative electrodes has a width between 1 mm and 3 mm.

4. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device further comprises an insulating member;

the positive and negative electrodes are configured on the insulating member;

the first distance is between 3 mm and 7 mm; and

the second distance is no more than 10 mm.

5. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device is embedded inside human body.

6. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device is installed outside human body.

7. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device has a linear shape.

8. The electromagnetic stimulation device according to claim 7, wherein the second distance is no more than 10 mm.

9. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device has a ring shape, and comprises at least two positive electrodes and at least two negative electrodes arranged around and at least at the second distance from the nerve.

10. The electromagnetic stimulation device according to claim 9, wherein the second distance is no more than 10 mm.

11. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device has a C-like shape, and comprises at least two positive electrodes and at least two negative electrodes arranged around and at least at the second distance from the nerve.

12. The electromagnetic stimulation device according to claim 11, wherein the second distance is no more than 10 mm.

13. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device has a helix shape, and comprises at least two positive electrodes and at least two negative electrodes arranged around and at least at the second distance from the nerve.

14. The electromagnetic stimulation device according to claim 13, wherein the second distance is no more than 10 mm.

15. The electromagnetic stimulation device according to claim 1, wherein the electromagnetic stimulation device has a planar shape, and comprises more than two positive electrodes and more than two negative electrodes arranged in an array and at least at the second distance from the nerve.

16. The electromagnetic stimulation device according to claim 15, wherein the second distance is no more than 10 mm.