CN106110506B - A kind of magnetic stimulating coil fixing device of accordion structure - Google Patents
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- A61N2/00—Magnetotherapy
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Abstract
本发明涉及磁刺激装置技术领域，尤其是涉及一种激聚焦度深度可调的折叠式结构的磁刺激线圈固定装置。包括通过第三折叠轴相连的左线圈固定支架和右线圈固定支架，左线圈固定支架上通过第二折叠轴对称设置有第一半圆形线圈和第二半圆形线圈，右线圈固定支架上通过第一折叠轴对称设置有第三半圆形线圈和第四半圆形线圈，所述的第三折叠轴两端对应设置有第五折叠角度固定滑槽和第六折叠角度固定滑槽，所述的第一折叠轴两端对应设置有第二折叠角度固定滑槽和第四折叠角度固定滑槽，所述的第二折叠轴两端对应设置有第一折叠角度固定滑槽和第三折叠角度固定滑槽。其实现了提高线圈刺激的聚焦度、刺激深度的灵活性选择性，实现磁刺激的不同刺激效果。
The invention relates to the technical field of magnetic stimulation devices, in particular to a magnetic stimulation coil fixing device with a folding structure and adjustable excitation focus depth. It includes a left coil fixing bracket and a right coil fixing bracket connected by a third folding axis, a first semicircular coil and a second semicircular coil are arranged symmetrically on the left coil fixing bracket through a second folding axis, and a coil fixing bracket on the right The third semicircular coil and the fourth semicircular coil are arranged symmetrically through the first folding axis, and the fifth folding angle fixing chute and the sixth folding angle fixing chute are correspondingly arranged at both ends of the third folding axis, The two ends of the first folding shaft are correspondingly provided with a second folding angle fixing chute and a fourth folding angle fixing chute, and the two ends of the second folding shaft are correspondingly provided with a first folding angle fixing chute and a third folding angle fixing chute. Folding angle fixed chute. It realizes the improvement of the focus degree of the coil stimulation, the flexibility and selectivity of the stimulation depth, and realizes the different stimulation effects of the magnetic stimulation.
Description
技术领域technical field
本发明涉及磁刺激装置技术领域，尤其是涉及一种激聚焦度深度可调的折叠式结构的磁刺激线圈固定装置。The invention relates to the technical field of magnetic stimulation devices, in particular to a magnetic stimulation coil fixing device with a folding structure and adjustable excitation focus depth.
背景技术Background technique
磁刺激技术是Barker等于1985年首先提出的一种利用圆形线圈产生时变磁场刺激大脑神经组织，在组织内产生感生电流，调节和干扰大脑功能的一种新的方法。Ueno等随后又提出了“8”字形刺激线圈，很好的改善了圆形线圈的刺激聚焦性。Magnetic stimulation technology is a new method first proposed by Barker et al. in 1985 to use a circular coil to generate a time-varying magnetic field to stimulate brain nerve tissue, generate an induced current in the tissue, and regulate and interfere with brain function. Ueno et al. subsequently proposed the "8"-shaped stimulation coil, which improved the stimulation focus of the circular coil.
磁刺激对生物体的刺激机理是利用电磁关系来实现的。当磁刺激放电线圈中流过时变电流时，放电线圈会产生时变磁场。当生物组织处于这种时变磁场中时，生物组织中产生感生电流，引起生物组织细胞膜的跨膜电压发生变化，从而实现对生物组织的磁刺激。The stimulation mechanism of magnetic stimulation to organisms is realized by using electromagnetic relations. When a time-varying current flows through the magnetic stimulation discharge coil, the discharge coil will generate a time-varying magnetic field. When the biological tissue is in this time-varying magnetic field, an induced current is generated in the biological tissue, which causes the transmembrane voltage of the biological tissue cell membrane to change, thereby realizing the magnetic stimulation of the biological tissue.
磁刺激作为一项用于脑功能研究和各种神经与精神系统诊断及治疗的新方法，目前在治疗重度抑郁症、老年痴呆症、帕金森症、失眠症、强迫症等有突破的进展。As a new method for brain function research and diagnosis and treatment of various nervous and psychiatric systems, magnetic stimulation has made breakthroughs in the treatment of severe depression, Alzheimer's disease, Parkinson's disease, insomnia, and obsessive-compulsive disorder.
磁刺激仪的设计中，刺激线圈的各项参数值和刺激线圈的形状是整个磁刺激装置设计的关键。刺激线圈的不同参数取值直接影响刺激强度，而刺激聚焦度直接关系着刺激靶位置的准确刺激和非靶位置的不必要刺激。刺激线圈的聚焦度可调影响了磁刺激的刺激选择度。而影响刺激聚焦度的主要因素是刺激线圈的空间几何形状和尺寸。高聚焦度可以缩小刺激范围，增加刺激针对性，减小非靶组织不必要的刺激。In the design of a magnetic stimulator, the parameter values of the stimulating coil and the shape of the stimulating coil are the key to the design of the entire magnetic stimulating device. The different parameter values of the stimulation coil directly affect the stimulation intensity, and the stimulation focus is directly related to the accurate stimulation of the stimulation target position and the unnecessary stimulation of the non-target position. The adjustable focus of the stimulation coil affects the stimulation selectivity of magnetic stimulation. The main factor affecting the degree of stimulation focus is the spatial geometry and size of the stimulation coil. The high degree of focus can narrow the range of stimulation, increase the pertinence of stimulation, and reduce unnecessary stimulation of non-target tissues.
目前常用的放电刺激线圈有圆形线圈、“8”字形线圈等。对于圆形线圈，感应电场值在线圈边缘比较大，中心比较小；而“8”字形线圈，当两个线圈中通一反向电流时，在圆形线圈的相接边缘处感应电场值比较大，并且感应电场的聚焦性优于圆形线圈。尽管传统“8”字形线圈相比圆形线圈在刺激聚焦度和刺激深度有了很大的给进，但由于在线圈两侧产生的磁场和感应电场较大，易对非靶组织产生不必要的刺激；同时，由于一种线圈参数值在其线圈结构固定好后，在相同放电电压情况下，产生的交变磁场变化过程基本相似，对于一种不可随意改变空间结构的刺激线圈，限制了在不同临床应用选择中的灵活性。Currently commonly used discharge stimulation coils include circular coils and "8" shaped coils. For a circular coil, the induced electric field value is relatively large at the edge of the coil and relatively small at the center; while for the "8"-shaped coil, when a reverse current is passed through the two coils, the induced electric field value at the connecting edge of the circular coil is relatively large. Large, and the focus of the induced electric field is better than that of a circular coil. Although the traditional "8" shaped coil has a great improvement in stimulation focus and stimulation depth compared with the circular coil, due to the large magnetic field and induced electric field generated on both sides of the coil, it is easy to cause unnecessary damage to non-target tissues. At the same time, since a coil parameter value is fixed in its coil structure, the changing process of the alternating magnetic field generated under the same discharge voltage is basically similar. For a stimulating coil that cannot change the spatial structure at will, it limits Flexibility in the selection of different clinical applications.
发明内容Contents of the invention
本发明的目的在于避免现有技术的缺陷而提供一种折叠式结构的磁刺激线圈固定装置，有效解决了现有技术存在的问题。The object of the present invention is to avoid the defects of the prior art and provide a magnetic stimulation coil fixing device with a folding structure, which effectively solves the problems of the prior art.
为实现上述目的，本发明采取的技术方案为：所述的一种折叠式结构的磁刺激线圈固定装置，其特点是包括通过第三折叠轴相连的左线圈固定支架和右线圈固定支架，左线圈固定支架上通过第二折叠轴对称设置有第一半圆形线圈和第二半圆形线圈，右线圈固定支架上通过第一折叠轴对称设置有第三半圆形线圈和第四半圆形线圈，所述的第三折叠轴两端对应设置有第五折叠角度固定滑槽和第六折叠角度固定滑槽，所述的第一折叠轴两端对应设置有第二折叠角度固定滑槽和第四折叠角度固定滑槽，所述的第二折叠轴两端对应设置有第一折叠角度固定滑槽和第三折叠角度固定滑槽，所述的第三折叠轴端部还设置有刺激线圈手柄。In order to achieve the above object, the technical solution adopted by the present invention is: the magnetic stimulation coil fixing device with a folding structure, which is characterized in that it includes a left coil fixing bracket and a right coil fixing bracket connected by a third folding shaft, the left coil fixing bracket The first semicircular coil and the second semicircular coil are symmetrically arranged on the coil fixing bracket through the second folding axis, and the third semicircular coil and the fourth semicircular coil are symmetrically arranged on the right coil fixing bracket through the first folding axis. shaped coil, the fifth folding angle fixing chute and the sixth folding angle fixing chute are correspondingly arranged at both ends of the third folding shaft, and the second folding angle fixing chute is correspondingly arranged at both ends of the first folding shaft and the fourth folding angle fixing chute, the two ends of the second folding shaft are correspondingly provided with the first folding angle fixing chute and the third folding angle fixing chute, and the end of the third folding shaft is also provided with a stimulating Coil handle.
所述的第二半圆形线圈和第四半圆形线圈相切设置，所述的第五折叠角度固定滑槽和第六折叠角度固定滑槽两端分别通过活动销与左线圈固定支架和右线圈固定支架相连，所述的第二折叠角度固定滑槽和第四折叠角度固定滑槽两端通过活动销与右线圈固定支架相连，所述的第一折叠角度固定滑槽和第三折叠角度固定滑槽通过活动销与左线圈固定支架相连。The second semi-circular coil and the fourth semi-circular coil are arranged tangentially, and the two ends of the fifth folding angle fixed chute and the sixth folding angle fixed chute are respectively connected to the left coil fixed bracket and the left coil fixed bracket by movable pins. The right coil fixing bracket is connected, the two ends of the second folding angle fixing chute and the fourth folding angle fixing chute are connected with the right coil fixing bracket through movable pins, the first folding angle fixing chute and the third folding angle The angle fixing chute is connected with the left coil fixing bracket through a movable pin.
所述的第一半圆形线圈和第二半圆形线圈在左线圈固定支架上通过第二折叠轴形成第一圆形线圈，所述的第三半圆形线圈和第四半圆形线圈在右线圈固定支架绕上通过第一折叠轴形成第二圆形线圈，第一圆形线圈和第二圆形线圈形成“8”字形线圈，左线圈固定支架和右线圈固定支架通过第五折叠角度固定滑槽和第六折叠角度固定滑槽绕第三折叠轴实现折叠角度β1和β2的调整，β1为左线圈固定支架与第三折叠轴的夹角，β2为右线圈固定支架与第三折叠轴的夹角，折叠角度β1和β2的调整时：0°≤β1＝β2≤90°，右线圈固定支架通过第二折叠角度固定滑槽和第四折叠角度固定滑槽绕第一折叠轴实现第三半圆形线圈和第四半圆形线圈折叠角度β3的调整，左线圈固定支架通过第一折叠角度固定滑槽和第三折叠角度固定滑槽绕第二折叠轴实现第一半圆形线圈和第二半圆形线圈折叠角度β4的调整，折叠角度β3和β4的调整时：0°≤β3＝β4≤90°。The first semicircular coil and the second semicircular coil form the first circular coil through the second folding axis on the left coil fixing bracket, and the third semicircular coil and the fourth semicircular coil On the right coil fixing bracket, the second circular coil is formed through the first folding axis, the first circular coil and the second circular coil form an "8"-shaped coil, and the left coil fixing bracket and the right coil fixing bracket pass through the fifth fold The angle fixing chute and the sixth folding angle fixing chute realize the adjustment of the folding angles β 1 and β 2 around the third folding axis, β 1 is the angle between the left coil fixing bracket and the third folding axis, and β 2 is the fixing of the right coil The angle between the bracket and the third folding axis, when adjusting the folding angles β 1 and β 2 : 0°≤β 1 =β 2 ≤90°, the right coil fixing bracket fixes the chute and the fourth folding angle through the second folding angle The fixed chute realizes the adjustment of the folding angle β3 of the third semicircular coil and the fourth semicircular coil around the first folding axis, and the left coil fixing bracket is wound around the first folding angle fixed chute and the third folding angle fixed chute. The second folding axis realizes the adjustment of the folding angle β 4 of the first semicircular coil and the second semicircular coil, and when the folding angles β 3 and β 4 are adjusted: 0°≤β 3 =β 4 ≤90°.
所述的第五折叠角度固定滑槽和第六折叠角度固定滑槽为半径为R1的半圆形有弧度刻度值的结构滑槽，所述的第一折叠角度固定滑槽、第二折叠角度固定滑槽、第三折叠角度固定滑槽和第四折叠角度固定滑槽为半径为R2的半圆形有弧度刻度值的结构滑槽大于，R1大于R2。The fifth folding angle fixed chute and the sixth folding angle fixed chute are semicircular structural chutes with a radius of R1 that have a radian scale value, and the first folded angle fixed chute, the second folded angle The fixed angle chute, the third folded angle fixed chute and the fourth folded angle fixed chute are semicircular structures with a radius of R 2 and a radian scale value greater than R 1 , greater than R 2 .
本发明的有益效果是：所述的一种折叠式结构的磁刺激线圈固定装置，其将传统“8”字形线圈拆分成四个半圆形线圈并分别固定于支架上，通过自由折叠轴将四个半圆形线圈固定支架连接，利用折叠轴实现刺激线圈的不同角度折叠，实现了“8”字形线圈刺激聚焦度深度的可调，提高线圈刺激的聚角度深度的灵活性选择性，实现磁刺激的不同刺激效果。The beneficial effects of the present invention are as follows: the magnetic stimulation coil fixing device of a foldable structure, which splits the traditional "8" shaped coil into four semicircular coils and fixes them on the bracket respectively, through the free folding shaft Connect the four semi-circular coil fixing brackets, use the folding shaft to realize the folding of the stimulation coil at different angles, realize the adjustable depth of focus of the "8"-shaped coil stimulation, and improve the flexibility and selectivity of the concentration angle depth of the coil stimulation. Realize different stimulation effects of magnetic stimulation.
附图说明Description of drawings
图1为本发明整体结构示意图；Fig. 1 is a schematic diagram of the overall structure of the present invention;
图2为本发明图1中的右线圈固定支架沿对称轴折起α度时的圆形线圈剖面结构示意图；Fig. 2 is a schematic diagram of the cross-sectional structure of the circular coil when the right coil fixing bracket in Fig. 1 of the present invention is folded up to α degrees along the axis of symmetry;
图3为本发明图1沿第三折叠轴折起β度时的“8”字形结构示意图。Fig. 3 is a schematic diagram of the "8"-shaped structure of Fig. 1 according to the present invention when it is folded along the third folding axis by β degrees.
图中所示：1.左线圈固定支架；2.右线圈固定支架；3.第一半圆形线圈；4.第二半圆形线圈；5.第三半圆形线圈；6.第四半圆形线圈；7.第一折叠角度固定滑槽；8.第二折叠角度固定滑槽；9.第三折叠角度固定滑槽；10.第四折叠角度固定滑槽；11.第五折叠角度固定滑槽；12.第六折叠角度固定滑槽；13.第一折叠轴；14.第二折叠轴；15.第三折叠轴；16.刺激线圈手柄。As shown in the figure: 1. Left coil fixing bracket; 2. Right coil fixing bracket; 3. First semicircular coil; 4. Second semicircular coil; 5. Third semicircular coil; 6. Fourth Semicircular coil; 7. First folding angle fixed chute; 8. Second folding angle fixed chute; 9. Third folding angle fixed chute; 10. Fourth folding angle fixed chute; 11. Fifth folding Angle fixed chute; 12. The sixth folding angle fixed chute; 13. The first folding shaft; 14. The second folding shaft; 15. The third folding shaft; 16. Stimulating coil handle.
具体实施方式Detailed ways
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
如图1至3所示，所述的一种折叠式结构的磁刺激线圈固定装置，其特点是包括通过第三折叠轴15相连的左线圈固定支架1和右线圈固定支架2，左线圈固定支架1上通过第二折叠轴14对称设置有第一半圆形线圈3和第二半圆形线圈4，右线圈固定支架2上通过第一折叠轴13对称设置有第三半圆形线圈5和第四半圆形线圈6，所述的第三折叠轴15两端对应设置有第五折叠角度固定滑槽11和第六折叠角度固定滑槽12，所述的第一折叠轴13两端对应设置有第二折叠角度固定滑槽8和第四折叠角度固定滑槽10，所述的第二折叠轴14两端对应设置有第一折叠角度固定滑槽7和第三折叠角度固定滑槽9，所述的第三折叠轴15端部还设置有刺激线圈手柄16。As shown in Figures 1 to 3, the magnetic stimulation coil fixing device of a folding structure is characterized in that it includes a left coil fixing bracket 1 and a right coil fixing bracket 2 connected by a third folding shaft 15, and the left coil is fixed A first semicircular coil 3 and a second semicircular coil 4 are symmetrically arranged on the bracket 1 through the second folding axis 14, and a third semicircular coil 5 is symmetrically arranged on the right coil fixing bracket 2 through the first folding axis 13 and the fourth semicircular coil 6, the fifth folding angle fixing chute 11 and the sixth folding angle fixing chute 12 are correspondingly arranged at both ends of the third folding shaft 15, and the two ends of the first folding shaft 13 The second folding angle fixing chute 8 and the fourth folding angle fixing chute 10 are correspondingly provided, and the first folding angle fixing chute 7 and the third folding angle fixing chute are correspondingly arranged at both ends of the second folding shaft 14 9. A stimulation coil handle 16 is also provided at the end of the third folding shaft 15 .
进一步，所述的第二半圆形线圈4和第四半圆形线圈6相切设置，所述的第五折叠角度固定滑槽11和第六折叠角度固定滑槽12两端分别通过活动销与左线圈固定支架1和右线圈固定支架2相连，所述的第二折叠角度固定滑槽8和第四折叠角度固定滑槽10两端通过活动销与右线圈固定支架2相连，所述的第一折叠角度固定滑槽7和第三折叠角度固定滑槽9通过活动销与左线圈固定支架1相连。Further, the second semicircular coil 4 and the fourth semicircular coil 6 are arranged tangentially, and the two ends of the fifth folding angle fixing chute 11 and the sixth folding angle fixing chute 12 respectively pass through movable pins It is connected with the left coil fixing bracket 1 and the right coil fixing bracket 2, the two ends of the second folding angle fixing chute 8 and the fourth folding angle fixing chute 10 are connected with the right coil fixing bracket 2 through movable pins, and the described The first folding angle fixing chute 7 and the third folding angle fixing chute 9 are connected to the left coil fixing bracket 1 through movable pins.
进一步，所述的第一半圆形线圈3和第二半圆形线圈4在左线圈固定支架1上通过第二折叠轴14形成第一圆形线圈，所述的第三半圆形线圈5和第四半圆形线圈6在右线圈固定支架2绕上通过第一折叠轴13形成第二圆形线圈，第一圆形线圈和第二圆形线圈形成“8”字形线圈，左线圈固定支架1和右线圈固定支架2通过第五折叠角度固定滑槽11和第六折叠角度固定滑槽12绕第三折叠轴15实现折叠角度β1和β2的调整，β1为左线圈固定支架1与第三折叠轴15的夹角，β2为右线圈固定支架2与第三折叠轴15的夹角，折叠角度β1和β2的调整时：0°≤β1＝β2≤90°，右线圈固定支架2通过第二折叠角度固定滑槽8和第四折叠角度固定滑槽10绕第一折叠轴13实现第三半圆形线圈5和第四半圆形线圈6折叠角度β3的调整，左线圈固定支架1通过第一折叠角度固定滑槽7和第三折叠角度固定滑槽9绕第二折叠轴14实现第一半圆形线圈3和第二半圆形线圈4折叠角度β4的调整，折叠角度β3和β4的调整时：0°≤β3＝β4≤90°。Further, the first semicircular coil 3 and the second semicircular coil 4 form the first circular coil through the second folding shaft 14 on the left coil fixing bracket 1, and the third semicircular coil 5 And the fourth semicircular coil 6 is wound on the right coil fixing bracket 2 to form a second circular coil through the first folding shaft 13, the first circular coil and the second circular coil form an "8" shaped coil, and the left coil is fixed The bracket 1 and the right coil fixing bracket 2 realize the adjustment of the folding angles β 1 and β 2 around the third folding axis 15 through the fifth folding angle fixing chute 11 and the sixth folding angle fixing chute 12, and β 1 is the left coil fixing bracket 1 and the third folding axis 15, β 2 is the angle between the right coil fixing bracket 2 and the third folding axis 15, when adjusting the folding angles β 1 and β 2 : 0°≤β 1 =β 2 ≤90 °, the right coil fixing bracket 2 realizes the folding angle β of the third semicircular coil 5 and the fourth semicircular coil 6 around the first folding axis 13 through the second folding angle fixing chute 8 and the fourth folding angle fixing chute 10 3 adjustment, the left coil fixing bracket 1 realizes the folding of the first semicircular coil 3 and the second semicircular coil 4 around the second folding axis 14 through the first folding angle fixing chute 7 and the third folding angle fixing chute 9 Adjustment of angle β 4 and adjustment of folding angles β 3 and β 4 : 0°≤β 3 =β 4 ≤90°.
进一步，所述的第五折叠角度固定滑槽11和第六折叠角度固定滑槽12为半径为R1的半圆形有弧度刻度值的结构滑槽，所述的第一折叠角度固定滑槽7、第二折叠角度固定滑槽8、第三折叠角度固定滑槽9和第四折叠角度固定滑槽10为半径为R2的半圆形有弧度刻度值的结构滑槽大于，R1大于R2。Further, the fifth folding angle fixed chute 11 and the sixth folding angle fixed chute 12 are semicircular structural chute with a radius of R 1 that has a radian scale value, and the first described first folding angle fixed chute 7. The second folding angle fixed chute 8, the third folding angle fixed chute 9 and the fourth folding angle fixed chute 10 are semicircular structures with a radius of R 2 and a radian scale value greater than, and R 1 greater than R2 .
所述的一种折叠式结构的磁刺激线圈固定装置，其由四个相同的半圆形线圈相连接而成，利用线圈固定支架的自由折叠实现“8”字形线圈的不同折叠角，调节刺激线圈的刺激聚焦度深度。组成“8”字形线圈的两个圆形线圈内流过同一个电流I，且电流I方向在第三折叠轴15处同向，以便提高折叠轴处磁场的作用。如图2所示，为以构成可折叠磁刺激线圈中的两个圆形线圈之一(右边圆形线圈)为例，对圆形线圈可沿直径方向的折起轴进行折起α度时的圆形线圈剖面结构示意图；如图3所示，为将构成可折叠磁刺激线圈中的两个圆形线圈沿第三折叠轴折起，β度时的“8”字形线圈剖面结构示意图。实验或临床应用中，可将刺激聚焦度深度可调的折叠磁刺激“8”字线圈及固定装置接入储能电容器，通过控制高压开关的导通而放电，并在可折叠线圈在不同折叠角度下产生不同聚焦度深度的交变磁场，进行不同程度的磁刺激的实验和治疗。本发明刺激聚焦度深度可调的可折叠磁刺激线圈固定装置，实现了在一组线圈参数不变的情况下，实现不同聚焦度和刺激深度的刺激功能。其可折叠线圈的空间结构可随着线圈固定支架的折叠而呈现不同的空间折叠角度。同时半圆形折叠固定滑槽既可以固定线圈的折叠结构，又可以在磁刺激实验或治疗中使操作者根据需求，选择线圈要折叠的角度。半圆形线圈固定支架可使半圆线圈围绕折叠轴相互连接，自由折叠；圆形线圈的折叠轴，使两个圆形线圈固定支架围绕折叠轴相切接触，自由折叠，随着线圈固定支架的折叠呈现不同的空间折叠结构。The magnetic stimulation coil fixing device with a foldable structure is formed by connecting four identical semicircular coils, and realizes different folding angles of the "8"-shaped coil by free folding of the coil fixing bracket, and adjusts stimulation Coil stimulation focus depth. The same current I flows through the two circular coils forming the "8"-shaped coil, and the direction of the current I is in the same direction at the third folding axis 15, so as to enhance the effect of the magnetic field at the folding axis. As shown in Figure 2, in order to take one of the two circular coils (the right circular coil) in the foldable magnetic stimulation coil as an example, when the circular coil can be folded by α degrees along the folding axis in the diameter direction The schematic diagram of the cross-sectional structure of the circular coil; as shown in Figure 3, it is a schematic diagram of the cross-sectional structure of the "8"-shaped coil when the two circular coils constituting the foldable magnetic stimulation coil are folded along the third folding axis, and the β degree. In experiments or clinical applications, the foldable magnetic stimulation "8" coil and the fixing device with adjustable stimulation focus depth can be connected to the energy storage capacitor, and discharged by controlling the conduction of the high-voltage switch, and the foldable coil is folded in different folds. Alternating magnetic fields with different depths of focus are generated at different angles, and different degrees of magnetic stimulation experiments and treatments are performed. The foldable magnetic stimulation coil fixing device with adjustable stimulation focus depth of the present invention realizes stimulation functions with different focus degrees and stimulation depths under the condition that a group of coil parameters remain unchanged. The spatial structure of the foldable coil can present different spatial folding angles along with the folding of the coil fixing bracket. At the same time, the semicircular folding and fixing chute can not only fix the folding structure of the coil, but also enable the operator to choose the angle to fold the coil according to the requirement in the magnetic stimulation experiment or treatment. The semicircular coil fixing bracket can make the semicircular coils connect with each other around the folding axis and fold freely; the folding axis of the circular coil makes the two circular coil fixing brackets tangentially contact around the folding axis and fold freely The folds present different spatial folding structures.
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.
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