CN217219898U - Single-cone transcranial magnetic stimulation coil structure - Google Patents
Single-cone transcranial magnetic stimulation coil structure Download PDFInfo
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- CN217219898U CN217219898U CN202220137892.XU CN202220137892U CN217219898U CN 217219898 U CN217219898 U CN 217219898U CN 202220137892 U CN202220137892 U CN 202220137892U CN 217219898 U CN217219898 U CN 217219898U
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- 238000011491 transcranial magnetic stimulation Methods 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000005284 excitation Effects 0.000 claims description 3
- 230000000638 stimulation Effects 0.000 abstract description 17
- 238000001816 cooling Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 4
- 230000020169 heat generation Effects 0.000 abstract description 2
- 230000001225 therapeutic effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000004936 stimulating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 210000003710 cerebral cortex Anatomy 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000000008 neuroelectric effect Effects 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002633 shock therapy Methods 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
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Abstract
The utility model discloses a single-cone transcranial magnetic stimulation coil structure, which comprises a coil, the coil comprises a first coil which is arranged on the upper part and a second coil which is arranged on the lower part and is connected in series, the first coil and the second coil are both conical spiral lines, the center distance L1 between each spiral winding layer of the first coil in the horizontal direction is the same, the center distance L2 between each corresponding spiral winding layer of the first coil and the second coil in the vertical direction is the same, the transcranial magnetic stimulation coil structure in the utility model adopts a cap-shaped coil, is attached to the appearance of human head, has the magnetic field focusing function, increases the magnetic field intensity of the stimulation part, increases the stimulation depth, can play a therapeutic role under the low-intensity work, improves the action efficiency, reduces the heat productivity, and is also made of low-impedance material, further reduces the heat generation, so the coil does not need to additionally increase the cooling mode, the cost is low.
Description
Technical Field
The utility model relates to a magnetic stimulation coil technical field especially relates to a single awl is through cranium magnetic stimulation coil structure.
Background
The transcranial magnetic stimulation technology is a magnetic stimulation technology which utilizes a pulsed magnetic field to act on the central nervous system to change the membrane potential of cerebral cortex nerve cells, so that induced current is produced, and the intracerebral metabolism and neuroelectric activity are influenced, thereby causing a series of physiological and biochemical reactions. Because of its painless, non-traumatic and radiationless advantages, it has gained more and more acceptance in the fields of cognitive neuroscience, clinical neuropsychiatric diseases and rehabilitation.
The transcranial magnetic stimulator mainly comprises a high-voltage pulse power generator, a stimulating coil and a controller. As a key component of the TMS device, the stimulation coil determines the characteristics of the pulsed magnetic field it outputs and also the characteristics of the induced electric field it generates in the nerve region of the brain.
The conventional TMS device mainly includes a planar circular coil and a planar 8-shaped coil, for example, a patent of 201811324054.8, "transcranial magnetic stimulation coil and its manufacturing method" discloses a method for manufacturing a splayed deep coil, and the stimulation depth is generally about 20mm below the surface of the coil. In order to achieve the stimulation depth and effect, in the stimulation process, the output intensity of the existing TMS equipment is increased, the heat productivity of the coil is large, the coil is cooled by liquid cooling or air cooling, and the damage to a patient caused by the fact that the coil is heated too fast and too large is avoided. For example, the prior patent 201810782193.9 entitled "stimulating coil for magnetic shock therapy apparatus" pertains to a high intensity stimulating coil.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of the prior art that the magnetic field of the coil is dispersed, the focusing performance is not good and the depth is not enough; the coil has large heat productivity, and can not stimulate for a long time if a natural cooling mode is adopted; if long-time stimulation is needed, a liquid cooling or air cooling device needs to be additionally arranged, the equipment cost is increased, and the fault point is correspondingly increased, so that the single-cone transcranial magnetic stimulation coil structure is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a single cone is through cranium magnetic stimulation coil structure, includes the coil, the coil is including the first coil that is located the upper portion and is located the second coil of lower part that establish ties, first coil and second coil are the toper helix. The spiral winding of each layer of the coil is not positioned on the same plane, and the coil is integrally wound into a concave-convex surface, so that the inner ring of the coil is more attached to the shape of a human head ball.
Preferably, the minimum diameter L3 of the inner ring of the second coil ranges from 20mm to 80 mm; the maximum diameter L4 of the inner ring of the first coil ranges from 100mm to 160 mm.
Further, the center distances L1 between each spiral winding layer of the first coil and the second coil in the horizontal direction are the same, and the center distance L1 ranges from 3mm to 6 mm. The center distance L1 can be 3mm, 4mm, 5mm or 6mm, and can also take the value between 3mm and 4mm, between 4mm and 5mm, or between 5mm and 6 mm.
Further, the center distance L2 of each corresponding spirally wound layer of the first coil and the second coil in the vertical direction is the same. The center-to-center distance L2 ranges from 3mm to 6 mm. The center distance L2 can be 3mm, 4mm, 5mm or 6mm, and can also take the value between 3mm and 4mm, between 4mm and 5mm, or between 5mm and 6 mm.
Preferably, the coil is formed by winding a surface-insulated flexible multi-strand excitation wire, the overall impedance of the coil is small, and the heat productivity of the coil during work is reduced.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the single-cone transcranial magnetic stimulation coil structure adopts a shape which is attached to the head of a human body, so that magnetic lines of force generated by magnetic stimulation wrap the stimulated head, the distance between the coil and the stimulation part of the head is reduced as much as possible, and meanwhile, the cambered surface of the cap-shaped coil has a magnetic field focusing function, so that the magnetic field intensity of the stimulation part is increased, and the stimulation depth is increased.
2. The single coil in the single-cone transcranial magnetic stimulation coil is considered from a heating source, the coil, the cable impedance and the heating loss are reduced while the effective conductive area is increased, the heating is reduced, the magnetic field focusing effect of the coil can play a role in treatment under the low-strength work, the action efficiency is improved, and therefore the heating value is reduced, the single-cone transcranial magnetic stimulation coil can keep normal work without additionally increasing a cooling mode, the cost of extra hardware is reduced, and fault points caused by additionally increasing hardware are avoided.
Drawings
FIG. 1 is a schematic structural diagram of the present single-cone transcranial magnetic stimulation coil structure;
FIG. 2 is a schematic diagram of the present single-cone transcranial magnetic stimulation coil configuration in use;
FIG. 3 is a cross-sectional view of the present single-cone transcranial magnetic stimulation coil structure in use;
FIG. 4 is a schematic diagram of the center-to-center spacing L1 of the present single-cone transcranial magnetic stimulation coil structure;
FIG. 5 is a schematic diagram of the center-to-center spacing L2 of the present single-cone transcranial magnetic stimulation coil structure;
fig. 6 is a schematic diagram of the structure diameter of the single-cone transcranial magnetic stimulation coil.
In the figure: 1. coil, 2, head; 11. a first coil; 12. a second coil.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a single-cone transcranial magnetic stimulation coil structure comprises a coil 1, wherein the coil 1 comprises a first coil 11 positioned at the upper part and a second coil 12 positioned at the lower part which are connected in series, and the first coil 11 and the second coil 12 are both conical spiral lines. The spiral winding of every layer of coil 1 is not located the coplanar, and coil 1 is whole to be coiled into the convex surface for 1 inner circle of coil more laminates the shape of human head ball, makes the magnetic line of force that the magnetic stimulation produced wrap up amazing head, and the distance between amazing position of minimize coil and head, and the cambered surface of cap type coil has the magnetic field focusing effect in addition simultaneously, makes the magnetic field intensity at amazing position increase to and amazing degree of depth increase.
Referring to fig. 6, in the present embodiment, the minimum diameter L3 of the inner ring of the second coil 12 is in the range of 20mm-80 mm; the maximum diameter L4 of the inner ring of the first coil 11 ranges from 100mm to 160 mm.
Further, referring to fig. 4, the center distances L1 between each spirally wound layer of the first coil 11 and the second coil 12 in the horizontal direction are the same, and the center distance L1 ranges from 3mm to 6 mm. The center distance L1 can be 3mm, 4mm, 5mm or 6mm, and can also take the value between 3mm and 4mm, between 4mm and 5mm, or between 5mm and 6 mm.
Further, referring to fig. 5, the centers L2 of each corresponding spirally wound layer of the first coil 11 and the second coil 12 in the vertical direction are the same. The center-to-center distance L2 ranges from 3mm to 6 mm. The center distance L2 can be 3mm, 4mm, 5mm or 6mm, or can be 3mm-4mm, 4mm-5mm or 5mm-6 mm.
In this embodiment, the coil 1 is formed by winding a flexible multi-strand excitation wire with an insulated surface, and the coil has small overall impedance and thus small heat generation. The magnetic stimulation coil in the embodiment is considered from a heating source, so that the effective conductive area is increased, and meanwhile, the impedance and heating loss of the coil and the cable are reduced, and the heating is reduced; moreover, the magnetic field focusing action of the coil can play a role in treatment under the low-intensity work, the action efficiency is improved, and the heat productivity is reduced, so that the single-cone transcranial magnetic stimulation coil can normally work without additionally increasing a cooling mode, the cost of additional hardware is reduced, and a fault point caused by additionally increasing hardware is avoided.
It should be noted that, when the transcranial magnetic stimulation coil 1 in the embodiment is used, a lead fixing member (not shown) for supporting the coil, a temperature sensor (not shown) for measuring the temperature of the heating of the coil, and a housing (not shown) are further required.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The single-cone transcranial magnetic stimulation coil structure is characterized by comprising a coil (1), wherein the coil (1) comprises a first coil (11) positioned at the upper part and a second coil (12) positioned at the lower part which are connected in series, and the first coil (11) and the second coil (12) are both conical spiral lines;
the center distances L1 between each spiral winding layer of the first coil (11) in the horizontal direction are the same, and the center distances L2 between each corresponding spiral winding layer of the first coil (11) and the second coil (12) in the vertical direction are the same.
2. The single cone transcranial magnetic stimulation coil structure according to claim 1, wherein the center-to-center distance L1 ranges between 3mm-6 mm.
3. The single cone transcranial magnetic stimulation coil structure according to claim 2, wherein the center-to-center distance L2 ranges between 3mm-6 mm.
4. The single cone transcranial magnetic stimulation coil structure according to claim 1 or 3, characterized in that the inner circle minimum diameter L3 of the second coil (12) ranges between 20mm-80 mm; the maximum diameter L4 of the inner ring of the first coil (11) ranges from 100mm to 160 mm.
5. A single-cone transcranial magnetic stimulation coil structure according to claim 1, characterized in that the coil (1) is wound from a surface-insulated flexible multi-strand excitation wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220137892.XU CN217219898U (en) | 2022-01-19 | 2022-01-19 | Single-cone transcranial magnetic stimulation coil structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220137892.XU CN217219898U (en) | 2022-01-19 | 2022-01-19 | Single-cone transcranial magnetic stimulation coil structure |
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| CN217219898U true CN217219898U (en) | 2022-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024234537A1 (en) * | 2023-05-15 | 2024-11-21 | 中国医学科学院生物医学工程研究所 | Transcranial magnetic stimulation coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024234537A1 (en) * | 2023-05-15 | 2024-11-21 | 中国医学科学院生物医学工程研究所 | Transcranial magnetic stimulation coil |
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