CN112735728A - Transcranial magnetic stimulation coil and manufacturing method thereof - Google Patents
Transcranial magnetic stimulation coil and manufacturing method thereof Download PDFInfo
- Publication number
- CN112735728A CN112735728A CN202011527114.3A CN202011527114A CN112735728A CN 112735728 A CN112735728 A CN 112735728A CN 202011527114 A CN202011527114 A CN 202011527114A CN 112735728 A CN112735728 A CN 112735728A
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- coil
- flat tube
- tube body
- deformable flat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/061—Winding flat conductive wires or sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/061—Winding flat conductive wires or sheets
- H01F41/063—Winding flat conductive wires or sheets with insulation
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- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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- Radiology & Medical Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
The invention discloses a transcranial magnetic stimulation coil and a manufacturing method thereof, wherein the transcranial magnetic stimulation coil comprises a coil with a hollow structure inside, an insulating layer coated on the outer wall of the coil, and a cooling medium introducing component which is detachably connected to the end part of the coil and is communicated with the inside of the coil; the coil is wound into a multi-turn structure by a deformable flat tube body, the interior of the deformable flat tube body is of a hollow structure, and the outer walls of all turns of the deformable flat tube body are tightly attached; the flexible flat tube body is reliable in structure and good in service performance, the outer walls of each turn of the coil are tightly jointed after being wound through the flat structure design of the flexible flat tube body, the number of turns of the coil is effectively increased, the inductance of a stimulating coil is increased, and the inductance of a double-layer coil can be achieved by winding a single-layer coil; the problem of prior art stimulating coil magnetic field divergence has effectually been improved, has increased the gathering nature of coil, has promoted the precision of magnetic field transmission.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a transcranial magnetic stimulation coil and a manufacturing method thereof.
Background
The existing known magnetic stimulation coil is generally manufactured by wrapping a stimulation coil by an upper shell and a lower shell, wherein the known types of coil materials include 3 types, namely flat enameled wires, litz wires, copper tubes and the like.
The contact surface of the stimulating coil made of the flat enameled wire and air or cooling liquid is too small. In the case of high intensity, the heat dissipation effect is not good because the heat exchange is too little.
The exciting coil made of litz wire has poor insulation, more heat generation and poor service life. The insulating layer is easily damaged due to heat generation in long-term use, so that electric arcs are generated inside the insulating layer, and safety risks can be caused to users.
The stimulating coil made of the copper pipe has high manufacturing difficulty and large gaps among coil windings. The diameter of the wound coil is large, the generated magnetic field is easy to disperse, and the stimulation energy focusing capability is poor.
Disclosure of Invention
In order to solve the technical problem, the invention provides a transcranial magnetic stimulation coil and a manufacturing method thereof.
The technical scheme for solving the technical problems is as follows: a transcranial magnetic stimulation coil comprises a coil with a hollow structure inside, an insulating layer coated on the outer wall of the coil, and a cooling medium introducing assembly which is detachably connected to the end part of the coil and is communicated with the inside of the coil;
the coil is wound into a multi-turn structure by the deformable flat tube body, the interior of the deformable flat tube body is of a hollow structure, and the outer wall of each turn of the deformable flat tube body is tightly attached.
Further, the coil includes first coil and the second coil of being connected formula structure as an organic whole with first coil, and first coil is the symmetry setting with the second coil.
Further, the first coil and the second coil are in a circular structure, a disc-shaped structure, an oval structure, a conical structure, a biconical structure or a polygonal structure.
Furthermore, the deformable flat tube body is made of a copper tube.
Furthermore, the bending positions of the first coil and the second coil are in arc transition.
The invention also provides a manufacturing method of the transcranial magnetic stimulation coil, which comprises the following steps:
s1: selecting a deformable copper pipe as a manufacturing base material of the coil, and carrying out impurity removal treatment on the ring surface of the copper pipe;
s2: pressing the selected copper pipe to flatten the copper pipe to form a deformable flat pipe body with a hollow structure inside;
s3: performing insulation treatment on the deformable flat tube body;
s4: and winding the processed deformable flat tube body to form the stimulating coil with a multi-turn structure.
Furthermore, the inner diameter of the copper pipe in the S1 is 0.5mm-20mm, and the outer diameter is 1mm-30 mm.
Further, when the deformable flat pipe body is subjected to the insulation processing in S3, the outer wall of the deformable flat pipe body is subjected to the film coating processing by the film coating machine, so that the outer wall of the deformable flat pipe body is wrapped by the insulation layer.
Furthermore, the insulating layer of the outer wall parcel of flexible flat body is one deck or multilayer.
Further, in S4, the deformable flat tube is wound into a circular, butterfly, 8-shaped, conical, biconical or magnetic shock coil, and the bending portion is subjected to arc transition processing in the winding process.
The invention has the following beneficial effects: the transcranial magnetic stimulation coil and the manufacturing method thereof provided by the invention have the advantages that the structure is reliable, the service performance is good, the outer walls of each turn of the coil are tightly jointed after being wound through the flat structure design of the deformable flat tube body, the number of turns of the coil is effectively increased, the inductance of the stimulation coil is increased, and the inductance of a double-layer coil can be achieved by winding a single-layer coil; the problem of magnetic field divergence of the stimulating coil in the prior art is effectively solved, the gathering performance of the coil is increased, and the magnetic field emission precision is improved; in addition, through hollow deformable flat copper pipe can lead to heat dissipation liquid or gas in the journey, in time take away the heat of coil during operation, prevent that the coil is overheated, strengthen stimulating coil's life when improving heat exchange efficiency.
Drawings
FIG. 1 is a cross-sectional view of a coil of the present invention;
FIG. 2 is a schematic diagram of a circular coil structure using a deformable flat copper tube in accordance with the present invention;
FIG. 3 is a schematic diagram of a figure-8 coil wound using a deformable flat copper tube in accordance with the present invention;
FIG. 4 is a schematic view of a butterfly coil wound using a deformable flat copper tube in accordance with the present invention;
FIG. 5 is a schematic view of a polygonal coil wound using a deformable flat copper tube in accordance with the present invention;
FIG. 6 is a schematic view of a polygonal coil wound using a deformable flat copper tube in accordance with the present invention;
FIG. 7 is a schematic view of an elliptical coil wound using a deformable flat copper tube in accordance with the present invention;
FIG. 8 is a schematic view of a conical coil wound using a deformable flat copper tube in accordance with the present invention;
FIG. 9 is a schematic diagram of a biconical coil wound using a deformable flat copper tube in accordance with the present invention;
the reference numerals shown in fig. 1 to 9 are respectively expressed as: 1-coil, 2-insulating layer, 10-deformable flat tube, 11-first coil, 12-second coil.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in figure 1, the transcranial magnetic stimulation coil comprises a coil 1 with a hollow structure inside, an insulating layer 2 coated on the outer wall of the coil 1, and a cooling medium introducing assembly detachably connected to the end of the coil 1 and communicated with the inside of the coil 1. The interior of the coil 1 is of a hollow structure, so that a cooling medium can circulate along the interior of the coil 1, heat generated when the coil 1 works is taken away in time, and the coil 1 is prevented from being overheated. The cooling medium inlet assembly comprises a hose and a generator for the input of the cooling medium, the end of the hose is screwed to the end of the coil 1, so that the detachability is achieved. The cooling medium comprises heat dissipation liquid or heat dissipation gas, the heat dissipation liquid can be silicon oil, mineral oil, water, inert liquid, transformer oil, vegetable oil and the like, and the heat dissipation gas can be air, nitrogen, helium, argon and the like.
The coil 1 is wound by the deformable flat tube body 10 to form a multi-turn structure, the interior of the deformable flat tube body 10 is of a hollow structure, and the outer walls of the deformable flat tube body 10 of each turn are tightly attached. The deformable flat tube 10 is made of copper tube. By the aid of the flat tube body structure, under the condition that the diameter of the coil 1 is the same, each circle of flat copper tubes are closely attached, the number of turns of the coil 1 is increased, meanwhile, the inductance of the exciting coil 1 is increased, and the inductance of the double-layer coil 1 in the prior art can be achieved by winding the single-layer coil 1; the problem of prior art stimulating coil 1 magnetic field divergence has been improved, the gathering nature of coil 1 has been increased, the precision of magnetic field transmission has been promoted.
In order to avoid the blockage of the flat tube body, in the invention, the bending positions of the first coil 11 and the second coil 12 are transited through an arc.
As shown in fig. 2 to 9, the present invention further provides a method for manufacturing a transcranial magnetic stimulation coil, comprising the following steps:
s1: selecting a deformable copper pipe as a manufacturing base material of the coil 1, and carrying out impurity removal treatment on the ring surface of the copper pipe; the attachment tightness degree of each turn of the wound copper pipe is ensured by impurity removal treatment without impurity spikes on the outer wall of the copper pipe, the inner diameter of the copper pipe is 0.5mm-20mm, and the outer diameter of the copper pipe is 1mm-30 mm.
S2: pressing the selected copper pipe to flatten the copper pipe to form a deformable flat pipe body 10 with a hollow structure inside;
s3: insulating the deformable flat tube 10; when carrying out insulation treatment to flat body 10 of flexible, carry out tectorial membrane treatment through the laminating machine to the outer wall of flat body 10 of flexible for the outer wall parcel insulating layer 2 of flat body 10 of flexible, insulating layer 2 is one deck or multilayer.
S4: the processed deformable flat tube 10 is wound to form the stimulating coil 1 with a multi-turn structure. The deformable flat tube body 10 is wound into a circular, butterfly, 8-shaped, conical, biconical or magnetic shock coil 1, and the bending part is subjected to circular arc transition treatment in the winding process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A transcranial magnetic stimulation coil is characterized by comprising a coil (1) with a hollow structure inside, an insulating layer (2) coated on the outer wall of the coil (1) and a cooling medium introducing assembly which is detachably connected to the end part of the coil (1) and communicated with the inside of the coil (1);
the coil (1) is wound into a multi-turn structure by the deformable flat tube body (10), the interior of the deformable flat tube body (10) is of a hollow structure, and the outer wall of each turn of the deformable flat tube body (10) is tightly attached.
2. The transcranial magnetic stimulation coil according to claim 1, characterized in that the coil (1) comprises a first coil (11) and a second coil (12) connected with the first coil (11) in a one-piece structure, and the first coil (11) and the second coil (12) are symmetrically arranged.
3. The transcranial magnetic stimulation coil according to claim 2, characterized in that the first coil (11) and the second coil (12) each have a circular, disc, elliptical, conical, biconical or polygonal configuration.
4. The transcranial magnetic stimulation coil according to any one of claims 1-3, wherein the deformable flat tube body (10) is made of copper tube.
5. The transcranial magnetic stimulation coil according to claim 2, characterized in that bends of the first coil (11) and the second coil (12) are in transition through an arc.
6. A method for manufacturing a transcranial magnetic stimulation coil is characterized by comprising the following steps:
s1: selecting a deformable copper pipe as a manufacturing base material of the coil (1), and carrying out impurity removal treatment on the ring surface of the copper pipe;
s2: the selected copper pipe is pressed, so that the copper pipe is flattened to form a deformable flat pipe body (10) with a hollow structure inside;
s3: insulating the deformable flat tube (10);
s4: and winding the processed deformable flat tube body (10) to form the stimulating coil (1) with a multi-turn structure.
7. The method of claim 6, wherein the copper tube of S1 has an inner diameter of 0.5mm-20mm and an outer diameter of 1mm-30 mm.
8. The method for manufacturing a transcranial magnetic stimulation coil according to claim 6, wherein in the step of insulating the deformable flat tube body (10) in the step of S3, a film covering machine is used for film covering the outer wall of the deformable flat tube body (10) so that the outer wall of the deformable flat tube body (10) is wrapped by the insulating layer (2).
9. The method of claim 6, wherein the insulation layer (2) wrapped around the outer wall of the deformable flat tube (10) is one or more layers.
10. The method for manufacturing a transcranial magnetic stimulation coil according to claim 6, wherein in S4, the deformable flat tube (10) is wound into a circular, butterfly, 8-shaped, conical, biconical or magnetic shock coil (1), and the bending part is subjected to arc transition treatment in the winding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527114.3A CN112735728A (en) | 2020-12-22 | 2020-12-22 | Transcranial magnetic stimulation coil and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527114.3A CN112735728A (en) | 2020-12-22 | 2020-12-22 | Transcranial magnetic stimulation coil and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112735728A true CN112735728A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011527114.3A Pending CN112735728A (en) | 2020-12-22 | 2020-12-22 | Transcranial magnetic stimulation coil and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN112735728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440731A (en) * | 2021-08-11 | 2021-09-28 | 成都理工大学 | Asymmetric special-shaped coil for craniocerebral electromagnetic stimulation and craniocerebral electromagnetic stimulation system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007035980A (en) * | 2005-07-28 | 2007-02-08 | Selco Co Ltd | Laminated electromagnetic coil and method for manufacturing the same |
| KR100841596B1 (en) * | 2007-06-05 | 2008-06-26 | 한국전기연구원 | Cooling device of coil for magnetic stimulator |
| CN201324444Y (en) * | 2008-08-18 | 2009-10-14 | 武汉依瑞德医疗设备新技术有限公司 | Stimulating bat for magnetic field stimulator |
| CN101947359A (en) * | 2010-09-16 | 2011-01-19 | 武汉依瑞德医疗设备新技术有限公司 | Magnetic field stimulator and cooling method thereof |
| CN103887034A (en) * | 2014-02-27 | 2014-06-25 | 浙江晶盛机电股份有限公司 | CUSP magnetic field generator coil and processing method thereof |
| KR20160070349A (en) * | 2014-12-10 | 2016-06-20 | (주)엠알 | Coil probe for rTMS improved heat radiation efficiency |
| CN108144187A (en) * | 2017-12-25 | 2018-06-12 | 四川君健万峰医疗器械有限责任公司 | The magnetic field stimulator of butterfly-type stimulating coil and its composition |
| KR20200042298A (en) * | 2018-10-15 | 2020-04-23 | 전주대학교 산학협력단 | Water cold type coil probe for magnetic stimulator and magnetic stimulator having the same |
-
2020
- 2020-12-22 CN CN202011527114.3A patent/CN112735728A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007035980A (en) * | 2005-07-28 | 2007-02-08 | Selco Co Ltd | Laminated electromagnetic coil and method for manufacturing the same |
| KR100841596B1 (en) * | 2007-06-05 | 2008-06-26 | 한국전기연구원 | Cooling device of coil for magnetic stimulator |
| CN201324444Y (en) * | 2008-08-18 | 2009-10-14 | 武汉依瑞德医疗设备新技术有限公司 | Stimulating bat for magnetic field stimulator |
| CN101947359A (en) * | 2010-09-16 | 2011-01-19 | 武汉依瑞德医疗设备新技术有限公司 | Magnetic field stimulator and cooling method thereof |
| CN103887034A (en) * | 2014-02-27 | 2014-06-25 | 浙江晶盛机电股份有限公司 | CUSP magnetic field generator coil and processing method thereof |
| KR20160070349A (en) * | 2014-12-10 | 2016-06-20 | (주)엠알 | Coil probe for rTMS improved heat radiation efficiency |
| CN108144187A (en) * | 2017-12-25 | 2018-06-12 | 四川君健万峰医疗器械有限责任公司 | The magnetic field stimulator of butterfly-type stimulating coil and its composition |
| KR20200042298A (en) * | 2018-10-15 | 2020-04-23 | 전주대학교 산학협력단 | Water cold type coil probe for magnetic stimulator and magnetic stimulator having the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440731A (en) * | 2021-08-11 | 2021-09-28 | 成都理工大学 | Asymmetric special-shaped coil for craniocerebral electromagnetic stimulation and craniocerebral electromagnetic stimulation system |
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Application publication date: 20210430 |
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