CN214099374U - A stimulating coil for magnetic stimulation - Google Patents

Abstract

The utility model relates to an exciting coil for magnetic stimulation, including the coil body, the middle part of coil body is equipped with the circle hole, the coil body includes upper coil and lower floor's coil, upper coil and lower floor's coil are formed by the inseparable coiling of same spool, upper coil is in with lower floor's coil the outer edge in circle hole is connected through the transition spool, the spool of the outer lane of upper coil stretches out one section through buckling and constitutes current input pipeline, the spool of the outer lane of lower floor's coil stretches out one section through buckling and constitutes current output pipeline, current output pipeline's the department of buckling is close to current input pipeline's the department of buckling. Compared with the traditional stimulating coil, the stimulating coil has the advantages of high quality factor Q, slow temperature rise in use, light weight, good vibration resistance and the like.

Description

A stimulating coil for magnetic stimulation

Technical Field

The utility model relates to a stimulating coil technical field especially relates to a stimulating coil for magnetic stimulation.

Background

The conventional stimulation coil is obtained by a conventional winding method, as shown in fig. 1, which has only one layer structure, after winding, one lead is on the inner side, the other lead is on the outer side, and during the use process, the current must be input into the lead on the inner side and output from the lead on the outer side. Because the lead wire of inboard needs the overlap joint in the coil outside, still need reserve specially when the shell of stimulating coil and dodge the space, have certain influence to structure and outward appearance design, this kind of stimulating coil's performance aspect quality factor Q is low, the intensification is fast, the weight is heavy, anti-vibration performance is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stimulating coil for magnetic stimulation to solve the problem that meets in the above-mentioned background art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an exciting coil for magnetic stimulation, includes the coil body, the middle part of coil body is equipped with the circle hole, the coil body includes upper coil and lower floor's coil, upper coil and lower floor's coil are formed by the inseparable coiling of same spool, upper coil and lower floor's coil are in the outer edge in circle hole is connected through the transition spool, the spool of the outer lane of upper coil stretches out one section through buckling and constitutes current input pipeline, the spool of the outer lane of lower floor's coil stretches out one section through buckling and constitutes current output pipeline, current output pipeline's department of buckling is close to current input pipeline's department of buckling.

In the above scheme, the upper coil and the lower coil are in an alpha-shaped structure on the coil body.

In the above scheme, the outermost circumference of the coil body is in a range of 120-130mm, the outer edge of the hole in the coil body is in a range of 40-60mm, and the height of the coil body is in a range of 10-12 mm.

In the above scheme, the section of the line pipe of the coil body is any one of a circle, a square and a rectangle.

In the scheme, the wire tube of the coil body is filled with 3000 copper wires, the number of the copper wires is 2000, and the outer surface of each copper wire is coated with insulating paint.

In the above scheme, the coil body is a concave surface structure which is gradually concave from outside to inside.

In the above scheme, the coil body is equipped with two, two the coil body is formed by the inseparable coiling of same spool, two be connected through the connecting pipe between the coil body.

In the above scheme, the coil body includes upper coil and lower floor's coil, two through two between the coil body connecting pipe between the coil of lower floor is connected, one of them the spool of the outer lane of the upper coil of coil body stretches out one section through buckling and constitutes current input pipeline, another the spool of the outer lane of the upper coil of coil body stretches out one section through buckling and constitutes current output pipeline, current output pipeline's department of buckling is close to current input pipeline's department of buckling.

In the above scheme, the two coil bodies are concave surface type structures which are gradually sunken from outside to inside, and the concave surfaces of the two coil bodies are oppositely arranged.

A method of winding a stimulation coil for magnetic stimulation, comprising the steps of:

s1, extending a section of pipeline line of a stimulating coil to be used as a current output pipeline, and tightly winding from outside to inside after bending to form a lower-layer coil;

s2, bending the outer edge of the hole in the middle of the lower coil of the stimulating coil upwards to form a transition line pipe, so that the transition line pipe is positioned at the top of the lower coil;

s3, bending the end part of the transition wire pipe and then tightly winding the end part from inside to outside to form an upper coil, wherein the wire pipe of the outer ring of the upper coil extends out of a section through bending to form a current input pipeline;

s4, coiling the current input pipeline to the position near the current output pipeline, so that the current input pipeline and the current output pipeline are both positioned on the peripheral ring surface of the stimulation coil;

s5, the upper coil and the lower coil are tightly bonded together in a vacuumizing glue filling mode, the pipeline lines of all the coils in the upper coil are tightly bonded together, and the pipeline lines of all the coils in the lower coil are tightly bonded together.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a towards magnetic stimulation coil module design, the coil adopts the double-deck wire winding of alpha, can increase the performance quality factor Q of coil, reduces calorific capacity, and two lead wires all are favorable to better assembly in the outside in the aspect of the structure. The coil adopts the winding mode in the same volume space, and the quality factor Q is large. The utility model discloses improve the magnetic stimulation coil performance effectively, make stimulation coil magnetic field distribution even, promote the quality grade in the product volume production, reduce the product technology degree of difficulty, improve the price/performance ratio simultaneously, improve current magnetic stimulation coil's design defect, improve the magnetic stimulation coil performance.

In addition, the multi-strand enameled wire is adopted, so that the skin effect is reduced, the ACR is reduced, and the performance of the product is improved. The copper wire is adopted for manufacturing, the whole weight is light, and the handheld movement is convenient. Adopt the evacuation encapsulating mode with upper and lower two-layer coil tightly the bonding together, vibrations when reducing to let in high frequency alternating current to reduce the noise in the use, consequently the stimulation coil anti-seismic performance in this application will be higher than traditional stimulation coil.

Drawings

FIG. 1 is a schematic diagram of a conventional prior art stimulation coil configuration;

fig. 2 is a schematic diagram of a structure of a stimulating coil according to the present invention;

FIG. 3 is a schematic diagram of a half-section structure of a stimulating coil in the present invention;

fig. 4 is a schematic view of a stimulation coil according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of the stimulation coil of FIG. 4 from another perspective;

fig. 6 is a graph comparing the temperature change of the conventional stimulation coil during the same treatment regimen for 10 min.

Reference numbers in the figures: 1-a coil body; 11-upper coil; 12-a lower layer coil; 13-a transition conduit; 2-circle of holes; 3-current input pipeline; 4-current output pipeline; 5-connecting pipe.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Embodiment 1, as shown in fig. 2 and 3, a stimulating coil for magnetic stimulation includes acoil body 1, acoil hole 2 is formed in the middle of thecoil body 1, thecoil body 1 includes anupper coil 11 and alower coil 12, and theupper coil 11 and thelower coil 12 are formed by tightly winding the same bobbin. The wire tubes are closely arranged one by one, and the two layers of coils are formed after the high-strength glue is injected and cured.

The outermost circumference of thecoil body 1 ranges from 120mm to 130mm, and can be 120mm, 125mm, 130mm, preferably 125 mm; the outer edge range of thecoil hole 2 in thecoil body 1 is 40-60mm, and can be 40mm, 50mm or 60mm, preferably 50 mm; the height of thecoil body 1 is in the range of 10-12mm, and may be 10mm, 11mm, 12mm, preferably 11 mm. It is to be noted that the height of thecoil body 1 is the height of theupper layer coil 11 or thelower layer coil 12 by a single layer.

When thecoil body 1 is inside, theupper coil 11 and thelower coil 12 are connected through thetransition spool 13 on the outer edge of thering hole 2, when thecoil body 1 is outside, the spool of the outer ring of theupper coil 11 stretches out a section through bending to form acurrent input pipeline 3, the spool of the outer ring of thelower coil 12 stretches out a section through bending to form acurrent output pipeline 4, and the bending part of thecurrent output pipeline 4 is close to the bending part of thecurrent input pipeline 3.

Theupper coil 11 and thelower coil 12 are in an alpha-shaped structure on thecoil body 1, theupper coil 11 and thelower coil 12 can be arranged side by side as shown in fig. 1, and can also be crossed, as long as two connectors are arranged together and are positioned on the outer side of the coil, so that the installation and wiring are convenient.

In the same volume space, the bent part of thecurrent output pipeline 4 is close to the bent part of thecurrent input pipeline 3 and is positioned at the outer side of the coil, or alpha (alpha) double-layer winding is adopted, so that the quality factor Q of the coil can be improved, the heat productivity of thecoil body 1 in the use process is reduced, and the product consistency is good. In the aspect of structure, the two leads are both arranged on the outer sides, so that better assembly is facilitated, and the flat cable is neat, so that the magnetic field is uniformly distributed.

When alternating current or alternating electromagnetic field exists in the conductor, the current distribution in the conductor is uneven, the current is concentrated on the skin part of the conductor, namely the current is concentrated on the thin layer on the outer surface of the conductor, the closer to the surface of the conductor, the higher the current density is, and the smaller the current is actually in the conductor. As a result, the resistance of the conductor increases, and its power loss also increases. This phenomenon is called skin effect (also called skin effect). The current is limited to a part of the area on the cross section of the conductor due to the skin effect, which not only reduces the effective use area of the wire, but also increases the equivalent resistance. The skin effect is particularly obvious in a driven stimulating coil, because the specification of the conducting wires in the traditional stimulating coil is 1mm in diameter and 21 in number, the whole weight is heavier, the alternating current resistance of the conducting wires is increased due to the skin effect, and when high-frequency current is introduced into the stimulating coil in the using process, the whole stimulating coil can vibrate.

Preferably, the cross section of the line pipe of thecoil body 1 is any one of circular, square and rectangular. The wire tube of thecoil body 1 is filled with 3000 copper wires, the number of the copper wires is preferably 0.1 mm, the number of the copper wires is 2500, and the outer surface of each copper wire is coated with insulating paint. Adopt wire envelope such as copper wire, silver silk, stranded insulation paint envelope stranded conductor reduces skin effect and reduces direct current resistance, and the high-usage of copper wire is compared other metal sectional areas for a short time, makes the coil gross mass lighten the better operation treatment of operator, makes things convenient for the handheld removal of medical personnel.

As a preferable mode, thecoil body 1 is a concave structure which is gradually concave from the outside to the inside. Theplanar coil body 1 is used for carrying out magnetic stimulation treatment on lumbar vertebra parts and pelvic floor sacrum parts, and thecoil body 1 with the concave surface is used for carrying out transcranial magnetic stimulation in cooperation with the head of a human body and is used for treating neurological diseases.

A method of winding a stimulation coil for magnetic stimulation, comprising the steps of:

and S1, extending a section of the pipeline wire of one stimulating coil to be used as a current output pipeline, and bending the pipeline wire to form a lower layer coil by tightly winding from outside to inside. The outer diameter of the coil is gradually increased after one turn.

And S2, bending the outer edge of the hole in the middle of the lower coil of the stimulating coil upwards to form a transition line pipe, so that the transition line pipe is positioned at the top of the lower coil, and a second coil is conveniently wound.

And S3, tightly winding the end part of the transition wire pipe from inside to outside after bending to form an upper coil, wherein the coil is wound by one turn, and the outer diameter of the coil is gradually increased. The line pipe of the outer lane of upper coil stretches out a section through buckling and constitutes the current input pipeline for letting in alternating current.

S4, the current input pipeline is coiled to the position near the current output pipeline, so that the current input pipeline and the current output pipeline are both positioned on the peripheral ring surface of the stimulating coil, the assembly is convenient, and the internal space of the device is saved.

S5, the upper coil and the lower coil are tightly bonded together in a vacuumizing glue filling mode, the pipeline lines of all the coils in the upper coil are tightly bonded together, and the pipeline lines of all the coils in the lower coil are tightly bonded together. An integral structure has the function of reducing vibration and noise, and has compact structure and saved working space.

Please refer to fig. 6, which is a graph comparing the temperature change of the conventional stimulation coil during 10min of treatment with the same scheme. The graph shows the temperature variation of the conventional stimulation coil (i.e. old) in the heating-up state (in the use state) and the application (i.e. new) in the same treatment scheme for 10min, and the temperature variation of the conventional stimulation coil (i.e. old) in the natural cooling-down state (in the non-use state) and the application (i.e. new) in the same treatment scheme for 10 min.

From fig. 6, it can be seen that, in terms of temperature rise, when the same scheme is used for 10min, the old coil rises from 26 degrees to 125 degrees, and the new coil rises from 26 degrees to 91 degrees, so that when the same scheme is used for the same period of time, the temperature rise of the coil adopting the application is slow in operation, and the temperature is low in the use process. From the aspect of natural cooling, when the same scheme is used for treatment for 10min, the old coil is cooled to 76 degrees from 125 degrees, and the new coil is cooled to 56 degrees from 91 degrees, so that in the same scheme for treatment and the same time period, the natural cooling speed of the coil adopting the application is high when the coil does not work, the working efficiency is improved, and preparation is made for next work.

Inembodiment 2, referring to fig. 4 and 5, in this embodiment, twocoil bodies 1 are provided, twocoil bodies 1 are formed by tightly winding the same bobbin, and the twocoil bodies 1 are connected by a connectingpipe 5.

Specifically,coil body 1 includesupper coil 11 and lower floor'scoil 12, is connected through connectingpipe 5 between two lower floor'scoil 12 between twocoil bodies 1, and the spool of theupper coil 11's of one of themcoil body 1 outer lane stretches out one section through buckling and constitutescurrent input pipeline 3, and the spool of theupper coil 11's of anothercoil body 1 outer lane stretches out one section through buckling and constitutescurrent output pipeline 4, and the department of buckling ofcurrent output pipeline 4 is close to the department of buckling ofcurrent input pipeline 3.

As a preferable scheme, the twocoil bodies 1 are both concave surface type structures which are gradually concave from outside to inside, and the concave surfaces of the twocoil bodies 1 are arranged oppositely. Thecoil body 1 with two concave surfaces is used for being matched with the head of a human body to carry out transcranial magnetic stimulation, is fixed on the head of the human body through a helmet, carries out magnetic stimulation on two sides of the head and is used for treating neurological diseases.

The utility model relates to a towards magnetic stimulation coil module design, the coil adopts the double-deck wire winding of alpha, can increase the performance quality factor Q of coil, reduces calorific capacity, and two lead wires all are favorable to better assembly in the outside in the aspect of the structure. The coil adopts the winding mode in the same volume space, and the quality factor Q is large. The utility model discloses improve the magnetic stimulation coil performance effectively, make stimulation coil magnetic field distribution even, promote the quality grade in the product volume production, reduce the product technology degree of difficulty, improve the price/performance ratio simultaneously, improve current magnetic stimulation coil's design defect, improve the magnetic stimulation coil performance.

In addition, the adoption of the multi-strand enameled wire can reduce skin effect, reduce direct current resistance and improve the performance of the product. The copper wire is adopted for manufacturing, the whole weight is light, and the handheld movement is convenient. Adopt the evacuation encapsulating mode with upper and lower two-layer coil tightly the bonding together, vibrations when reducing to let in high frequency alternating current to reduce the noise in the use, consequently the stimulation coil anti-seismic performance in this application will be higher than traditional stimulation coil.

The above-mentioned embodiments further explain in detail the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the embodiments of the present invention, and are not intended to limit the scope of the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (9)

1. A stimulation coil for magnetic stimulation, comprising a coil body (1), the middle part of the coil body (1) being provided with a coil hole (2), characterized in that: coil body (1) includes upper coil (11) and lower floor's coil (12), upper coil (11) and lower floor's coil (12) are formed by the inseparable coiling of same spool, upper coil (11) are in with lower floor's coil (12) the outer edge of circle hole (2) is connected through transition spool (13), the spool of the outer lane of upper coil (11) stretches out one section through buckling and constitutes current input pipeline (3), the spool of the outer lane of lower floor's coil (12) stretches out one section through buckling and constitutes current output pipeline (4), the department of buckling of current output pipeline (4) is close to the department of buckling of current input pipeline (3).

2. A stimulation coil for magnetic stimulation according to claim 1, characterized in that: the upper-layer coil (11) and the lower-layer coil (12) are in alpha-shaped structures on the coil body (1).

3. A stimulation coil for magnetic stimulation according to claim 1, characterized in that: the range of the outermost peripheral ring of the coil body (1) is 120-130mm, the range of the outer edge of the ring hole (2) in the coil body (1) is 40-60mm, and the range of the height of the coil body (1) is 10-12 mm.

4. A stimulation coil for magnetic stimulation according to claim 1, characterized in that: the section of the line pipe of the coil body (1) is any one of circular, square and rectangular.

5. A stimulation coil for magnetic stimulation according to claim 4, characterized in that: the coil comprises a coil body (1), wherein the inside of a line tube of the coil body (1) is filled with 3000 copper wires, the number of the copper wires is 2000 and 3000, and the outer surface of each copper wire is coated with insulating paint.

6. A stimulation coil for magnetic stimulation according to claim 1, characterized in that: the coil body (1) is of a concave surface type structure which is gradually sunken from outside to inside.

7. A stimulation coil for magnetic stimulation according to claim 1, characterized in that: the coil body (1) is equipped with two, two coil body (1) is formed by the inseparable coiling of same spool, two be connected through connecting pipe (5) between coil body (1).

8. A stimulation coil for magnetic stimulation according to claim 7, characterized in that: coil body (1) includes upper coil (11) and lower floor's coil (12), two through two between coil body (1) connecting pipe (5) between lower floor's coil (12) are connected, one of them the spool of the outer lane of the upper coil (11) of coil body (1) stretches out one section through buckling and constitutes current input pipeline (3), another the spool of the outer lane of the upper coil (11) of coil body (1) stretches out one section through buckling and constitutes current output pipeline (4), the department of buckling of current output pipeline (4) is close to the department of buckling of current input pipeline (3).

9. A stimulation coil for magnetic stimulation according to claim 8, characterized in that: the two coil bodies (1) are concave surface type structures which are gradually sunken from outside to inside, and the concave surfaces of the two coil bodies (1) are oppositely arranged.

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