Transcranial magnetic stimulation device

Abstract

This invention provides a transcranial magnetic stimulation (TMS) device, including a first coil assembly comprising a first coil, a second coil, and a first connecting portion. The first coil includes multiple turns of first conductor segments, each first conductor segment having at least one connected first curved segment and a first arc segment. The second coil includes multiple turns of second conductor segments, each second conductor segment having at least one connected second curved segment and a second arc segment. The first connecting portion connects the first coil and the second coil.

Claims

1. A transcranial magnetic stimulation device, comprising: A first coil assembly includes: a first coil, wherein the first coil comprises multiple turns of a first conductor segment, and the first coil is composed of a single continuous conductor segment, each of the first conductor segments having at least one electrically connected first curved segment and a first arc segment, each of the first curved segments of the first conductor segment being approximately a straight line from a corresponding top view of the skull; a second coil, wherein the second coil comprises multiple turns of a second conductor segment, and the second coil is composed of a single continuous conductor segment, each of the second conductor segments having at least one electrically connected second curved segment and a second arc segment, each of the second curved segments of the second conductor segment being approximately a straight line from a corresponding top view of the skull; and a first connecting portion electrically connected between the first coil and the second coil.

2. The transcranial magnetic stimulation device as claimed in claim 1, wherein the first coil and the second coil are arranged symmetrically about the longitudinal axis of a reference coordinate system.

3. The transcranial magnetic stimulation device as claimed in claim 2, wherein the first coil is disposed on a first side of the longitudinal axis, the second coil is disposed on a second side of the longitudinal axis, each first curve segment of each first conductor segment is closer to the longitudinal axis than a first arc segment of the same turn, and each second curve segment of each second conductor segment is closer to the longitudinal axis than a second arc segment of the same turn.

4. The transcranial magnetic stimulation device as claimed in claim 1, wherein the distance between the outermost first lead segment of the multi-turn first lead segment and the origin of the reference coordinate system is between 66 and 78 mm.

5. The transcranial magnetic stimulation device as claimed in claim 1, wherein the first arc segment of the outermost first lead segment of the multi-turn first lead segment corresponds to a first extension line in a side view, the second arc segment of the outermost second lead segment of the multi-turn second lead segment corresponds to a second extension line in a side view, and the included angle between the first extension line and the second extension line is between 110 degrees and 154 degrees.

6. The transcranial magnetic stimulation device as claimed in claim 1, wherein the at least one first curved segment and the first arc segment of the innermost first lead segment of the multi-turn first lead segment form a first D-shaped region, the at least one second curved segment and the second arc segment of the innermost second lead segment of the multi-turn second lead segment form a second D-shaped region, and one of the first D-shaped region and the second D-shaped region is a positive D-shape, and the other of the first D-shaped region and the second D-shaped region is an inverted D-shape.

7. The transcranial magnetic stimulation device as claimed in claim 6, wherein the width of at least one of the first D-shaped region and the second D-shaped region is between 24 and 38 mm.

8. The transcranial magnetic stimulation device as claimed in claim 6 further includes a bridge-shaped magnetic core connected between the first D-shaped region and the second D-shaped region.

9. The transcranial magnetic stimulation device as claimed in claim 1, wherein the length of the first curved segment of the outermost first lead segment of the multi-turn first lead segment is between 112 and 120 mm.

10. The transcranial magnetic stimulation device as claimed in claim 1, wherein the coil inductance of the first coil and the second coil is not higher than 20 μH.

11. The transcranial magnetic stimulation device as claimed in claim 1, wherein the distance between the first coil and the second coil is between 74 and 78 mm.

12. The transcranial magnetic stimulation device as claimed in claim 1, wherein the first connection includes a first connecting line electrically connected between the innermost first lead segment of the multi-turn first lead segment and the outermost second lead segment of the multi-turn second lead segment, and a second connecting line electrically connected between the outermost first lead segment of the multi-turn first lead segment and the innermost second lead segment of the multi-turn second lead segment.

13. The transcranial magnetic stimulation device as claimed in claim 1, further comprising: The second coil group includes: a third coil, wherein the third coil includes multiple turns of third conductor segments, each of the third conductor segments having at least one connected third curved segment and a third arc segment; a fourth coil, wherein the fourth coil includes multiple turns of fourth conductor segments, each of the fourth conductor segments having at least one connected fourth curved segment and a fourth arc segment; and a second connecting portion connecting the third coil and the fourth coil, wherein the first coil and the second coil are symmetrically arranged based on the vertical axis of a reference coordinate system, and the third coil and the fourth coil are symmetrically arranged based on the horizontal axis of the reference coordinate system.

14. The transcranial magnetic stimulation device as claimed in claim 13, wherein the distance between the outermost first lead segment of the multi-turn first lead segment and the origin of the reference coordinate system is between 66 and 78 mm, and the distance between the outermost third lead segment of the multi-turn third lead segment and the origin of the reference coordinate system is between 66 and 78 mm.

15. The transcranial magnetic stimulation device of claim 13, wherein the first coil group is driven by a first driving current to provide a first electric field, the second coil group is driven by a second driving current to provide a second electric field, and the first electric field and the second electric field form a rotating electric field in response to changes in the first driving current and the second driving current.

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