A magnetic stimulation coil assembly and a medical magnetic stimulation device

Abstract

The present invention discloses a magnetic stimulation coil assembly and a medical magnetic stimulation device. The coil assembly includes at least one coil unit, and the coil unit includes: a coil; a plurality of transmission structures, the transmission directions of the plurality of transmission structures respectively extend along different radial directions of the coil; a plurality of blocking structure groups, which are connected to the plurality of transmission structures in one-to-one correspondence, and each blocking structure group includes at least two blocking structures; within the same blocking structure group, the blocking structures are arranged along the transmission direction of the corresponding transmission structure; a coil slot is formed between two adjacent blocking structures within the blocking structure group; the coil is successively clamped between different blocking structure groups and different coil slots of the same blocking structure group along the winding direction; the blocking structure group moves along the transmission direction of the corresponding transmission structure to adjust the diameter of the coil. In this application, the parameters of the coil are adjustable, so that the magnetic stimulation coil assembly can achieve a good magnetic stimulation effect for different individuals, and the application universality of the magnetic stimulation coil assembly is improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of medical devices, and particularly to a magnetic stimulation coil assembly and a medical magnetic stimulation device. Background Art

[0002] Neurological diseases are increasingly becoming factors affecting people's quality of life. Currently, common nerve regulation techniques include invasive techniques and non-invasive stimulation. Transcranial Magnetic Stimulation (TMS) is a form of physical stimulation. It uses a time-varying current flowing into a transcranial magnetic stimulation coil to generate a high-intensity time-varying pulsed magnetic field. The time-varying pulsed magnetic field generates an induced electric field and an induced current in tissues, and the induced current is a stimulation method that causes some excitable tissues to become excited. TMS has the advantages of being painless, non-invasive, easy to operate, safe and reliable, etc., and has a wide range of applications in clinical medicine.

[0003] When the transcranial magnetic stimulation coil is working, due to individual differences among patients, it is necessary to adjust the coil parameters to achieve the best stimulation effect. However, most current transcranial magnetic stimulation coils have fixed parameters, and during the treatment process, it is impossible to adjust the coil parameters in real time according to individual differences among patients, making it difficult to achieve good nerve treatment effects for different patients. Summary of the Invention

[0004] Based on the above defects of the prior art, the present invention provides a magnetic stimulation coil assembly and a medical magnetic stimulation device to achieve the adjustability of the magnetic stimulation coil parameters, ensure that the magnetic stimulation coil achieves good magnetic stimulation effects for different individuals, and improve the application universality of the magnetic stimulation coil.

[0005] In a first aspect, embodiments of the present invention provide a magnetic stimulation coil assembly applied to a medical magnetic stimulation device. The magnetic stimulation coil assembly includes at least one coil unit, and the coil unit includes:

[0006] A first bottom plate;

[0007] A coil, the coil being laid on the first side surface of the first bottom plate;

[0008] A plurality of transmission structures, the transmission structures being arranged on the first side surface, and the transmission directions of the plurality of transmission structures extend along different radial directions of the coil respectively;

[0009] A plurality of blocking structure groups are connected to the plurality of conveying structures in a one-to-one correspondence. Each blocking structure group includes at least two blocking structures. Within the same blocking structure group, the blocking structures are arranged along the conveying direction of the corresponding conveying structure. A coil slot is formed between two adjacent blocking structures within the blocking structure group. The coil is spiral, and the coil is successively clamped in different blocking structure groups and different coil slots of the same blocking structure group along the winding direction. The blocking structure group moves along the conveying direction of the corresponding conveying structure to adjust the diameter of the coil.

[0010] In a second aspect, an embodiment of the present invention further provides a medical magnetic stimulation device, including the magnetic stimulation coil assembly described in the first aspect of the present invention.

[0011] In an embodiment of the present invention, the magnetic stimulation coil assembly includes at least one coil unit. The coil unit includes: a first bottom plate; a coil laid on the first side surface of the first bottom plate; a plurality of conveying structures arranged on the first side surface, and the conveying directions of the plurality of conveying structures extend along different radial directions of the coil respectively; a plurality of blocking structure groups connected to the plurality of conveying structures in a one-to-one correspondence. Each blocking structure group includes at least two blocking structures. Within the same blocking structure group, the blocking structures are arranged along the conveying direction of the corresponding conveying structure. A coil slot is formed between two adjacent blocking structures within the blocking structure group. The coil is spiral, and the coil is successively clamped in different blocking structure groups and different coil slots of the same blocking structure group along the winding direction. The blocking structure group moves along the conveying direction of the corresponding conveying structure to adjust the diameter of the coil. In the above manner, when the blocking structures in the blocking structure group move back and forth along the conveying direction of the corresponding conveying structure, the coil can be driven to expand or contract. Thus, the adjustment of the coil diameter and the number of turns can be realized, and further, parameters such as the position and intensity of the magnetic field generated by the coil can be adjusted. When magnetic stimulation needs to be performed on different patients or different regions of the same patient, the diameter and the number of turns of the coil can be adjusted at any time, so that the magnetic field of the coil can accurately act on the position to be treated of the patient, ensuring that the magnetic stimulation coil achieves a good magnetic stimulation effect on different individuals and improving the application universality of the magnetic stimulation coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of a magnetic stimulation coil assembly provided by an embodiment of the present invention;

[0013] Figure 2 is Figure 1 a schematic structural diagram of the magnetic stimulation coil assembly shown in another direction;

[0014] Figure 3 is a partial structural schematic diagram of a magnetic stimulation coil assembly provided by an embodiment of the present invention;

[0015] Figure 4 Another structural schematic diagram of the magnetic stimulation coil assembly provided by an embodiment of the present invention;

[0016] Figure 5 is Figure 4 The structural schematic diagram of the magnetic stimulation coil assembly shown in the other direction. Specific embodiments

[0017] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0018] Based on the defects of the prior art described in the background art, an embodiment of the present invention provides a magnetic stimulation coil assembly, which is applied to a medical magnetic stimulation device. Figure 1 A structural schematic diagram of a magnetic stimulation coil assembly provided by an embodiment of the present invention, Figure 2 is Figure 1 The structural schematic diagram of the magnetic stimulation coil assembly shown in the other direction. Refer to Figure 1 and Figure 2 , the magnetic stimulation coil assembly includes at least one coil unit 1. The coil unit 1 includes: a first base plate 2; a coil 3, which is laid on the first side surface 4 of the first base plate 2; a plurality of transmission structures 5, which are arranged on the first side surface 4, and the transmission directions of the plurality of transmission structures 5 extend along different radial directions of the coil 3 respectively; a plurality of blocking structure groups 6, which are connected to the plurality of transmission structures 5 one by one. The blocking structure group 6 includes at least two blocking structures 7; within the same blocking structure group 6, the blocking structures 7 are arranged along the transmission direction of the corresponding transmission structure 5; between two adjacent blocking structures 7 within the blocking structure group 6, a coil slot 8 is formed; the coil 3 is spiral, and the coil 3 is sequentially clamped between different blocking structure groups 6 and different coil slots 8 of the same blocking structure group 6 along the winding direction; the blocking structure group 6 moves along the transmission direction of the corresponding transmission structure 5 to adjust the diameter of the coil 3.

[0019] Specifically, as Figure 1 shown, the magnetic stimulation coil assembly is composed of at least one coil unit 1. The coil unit 1 includes a first base plate 2, a coil 3, a plurality of transmission structures 5, and a plurality of blocking structure groups 6 connected to the transmission structures 5. Among them, the coil 3 is laid on one side surface of the first base plate 2, and the coil 3 is integrally wound in a spiral shape to form a circle. The transmission structure 5 is also arranged on the first side surface 4 of the first base plate 2. The transmission direction of the transmission structure 5 is the same as any diameter direction of the coil 3, and the transmission directions of the plurality of transmission structures 5 extend along different diameter directions of the coil 3 respectively.

[0020] Furthermore, continue to refer toFigure 1 In each blocking structure group 6, at least two blocking structures 7 are provided. The blocking structures 7 in the same blocking structure group 6 are arranged along the conveying direction of the corresponding conveying structure 5, and each blocking structure 7 can move back and forth along the conveying direction. A coil slot 8 is formed between two adjacent blocking structures 7 in the same blocking structure group 6, and the coil 3 is wound around each coil slot 8. Specifically, the coil 3 is sequentially clamped in different blocking structure groups 6 along the winding direction. Moreover, within the same blocking structure group 6, the coil 3 is sequentially clamped in different coil slots 8 along the winding direction. In short, the coil 3 is wound around the coil slots 8 in different blocking structures 7 in sequence, and only one turn of the coil 3 is wound in each coil slot 8.

[0021] In this setting mode, when the blocking structures 7 in the blocking structure group 6 move back and forth along the conveying direction of the corresponding conveying structure 5, the coil 3 can be driven to expand or contract. Exemplarily, when each blocking structure group 6 moves outward (in the direction away from the center of the coil 3), the blocking structure 7 will clamp the coil 3 to expand along the diameter direction; when each blocking structure group 6 moves inward (in the direction close to the center of the coil 3), the blocking structure 7 will clamp the coil 3 to contract along the diameter direction. In this way, the adjustment of the diameter and the number of turns of the coil 3 can be realized, and further the position and intensity of the magnetic field formed by the coil 3 can be adjusted. The diameter of the coil 3 is related to the focusing range and depth of the magnetic field of the coil 3; when the diameter becomes smaller, the focusing range of the magnetic field becomes smaller and the focusing depth becomes larger; when the diameter becomes larger, the focusing range of the magnetic field becomes larger and the focusing depth becomes smaller. When magnetic stimulation needs to be performed on different patients or different regions of the same patient, parameters such as the diameter of the coil 3 can be adjusted at any time, so that the magnetic field of the coil 3 can accurately act on the position to be treated of the patient, and a better regulation effect on a specific brain region can be achieved.

[0022] Among them, regarding how to control the movement of the blocking structure group 6 along the conveying direction of the conveying structure 5, the embodiments of the present invention do not make any restrictions, and those skilled in the art can set it according to actual needs. The blocking structure group 6 can be set to be slidably fixed on the conveying structure 5, and the movement of the blocking structure 7 is realized by controlling the movement of the blocking structure 7 on the conveying structure 5; or the blocking structure 7 can be set to be fixed on the conveying structure 5, and the movement of the blocking structure 7 is realized by controlling the movement of the conveying structure 5. The specific implementation manners of the above methods can be realized by those skilled in the art using any existing technologies according to actual needs, and the present application does not elaborate or limit this.

[0023] Optionally, Figure 1Exemplarily shown in the figure is that the coil unit 1 includes 4 transfer structures 5, but the actual setting method is not limited thereto. The advantage of setting 4 transfer structures 5 is that it can effectively prevent the coil 3 from deforming during the movement of the blocking structure 7 and will not overly increase the layout difficulty of the transfer structures 5. In addition, for parameters such as the number and shape of the inner blocking structures 7 in the blocking structure group 6, the embodiments of the present invention are not limited either, and those skilled in the art can set them according to actual needs. The 3 rectangular baffles shown in the figure are only examples.

[0024] In this application, the magnetic stimulation coil assembly includes at least one coil unit. The coil unit includes: a first base plate; a coil laid on the first side surface of the first base plate; a plurality of transfer structures arranged on the first side surface, and the transfer directions of the plurality of transfer structures extend along different radial directions of the coil respectively; a plurality of blocking structure groups connected to the plurality of transfer structures one by one, and each blocking structure group includes at least two blocking structures; within the same blocking structure group, the blocking structures are arranged along the transfer direction of the corresponding transfer structure; a coil slot is formed between two adjacent blocking structures within the blocking structure group; the coil is spiral, and the coil is successively clamped between different blocking structure groups and different coil slots of the same blocking structure group along the winding direction; the blocking structure group moves along the transfer direction of the corresponding transfer structure to adjust the diameter of the coil. In the above manner, when the blocking structures in the blocking structure group move back and forth along the transfer direction of the corresponding transfer structure, the coil can be driven to expand or contract. Thus, the adjustment of the coil diameter and the number of turns can be achieved, and further parameters such as the position and intensity of the magnetic field generated by the coil can be adjusted. When magnetic stimulation needs to be performed on different patients or different regions of the same patient, the diameter and the number of turns of the coil can be adjusted at any time, so that the magnetic field of the coil can accurately act on the position to be treated of the patient, ensuring that the magnetic stimulation coil achieves a good magnetic stimulation effect on different individuals and improving the application versatility of the magnetic stimulation coil.

[0025] Reference can continue to be made to Figure 1 and Figure 2 , in a possible embodiment, the magnetic stimulation coil assembly may further include a first radius adjustment structure 9. The first radius adjustment structure 9 is connected to the blocking structure group 6, and the first radius adjustment structure 9 is used to drive the blocking structure group 6 to move along the transfer direction of the corresponding transfer structure 5 to adjust the diameter of the coil 3.

[0026] Specifically, as shown in Figure 1 and Figure 2 , a first radius adjustment structure 9 may also be provided in the magnetic stimulation coil assembly. The first radius adjustment structure 9 is connected to each blocking structure group 6, and further controls each blocking structure group 6 to move along the transfer direction of the corresponding transfer structure 5, thereby completing the adjustment of the diameter of the coil 3.

[0027] Optionally, multiple blocking structure groups 6 may be connected to the same first radius adjustment structure 9. Thus, by adjusting the first radius adjustment structure 9, the movement of all blocking structure groups 6 (four blocking structure groups 6 in the figure) can be simultaneously controlled, causing the coil 3 to expand or contract simultaneously along different radial directions, thereby ensuring that the overall shape of the coil 3 remains unchanged and preventing deformation of the coil 3 (e.g., becoming elliptical) that would cause an uneven magnetic field.

[0028] In other possible embodiments, the number of first radius adjustment structures 9 may be equal to the number of blocking structure groups 6, and the movement of the blocking structure groups 6 may be controlled by the corresponding first radius adjustment structures 9. In this configuration, when the coil 3 is slightly deformed, the shape of the coil 3 can be fine-tuned by adjusting the first radius adjustment structures 9 at the deformed locations.

[0029] Of course, in the embodiment of the present application, the blocking structure group 6 can also be directly moved to adjust its position, so as to reduce the component structure in the magnetic stimulation coil assembly and simplify the preparation process of the magnetic stimulation coil assembly.

[0030] The embodiments of the present invention do not limit the specific configuration of the first radius adjustment structure 9 and its connection method with the blocking structure group 6. For example, the first radius adjustment structure 9 may be a push-pull rod or a knob, but is not limited thereto. The first radius adjustment structure 9 and the blocking structure group 6 may be connected by gears and chains, and the blocking structure group 6 may be driven to move by the first radius adjustment structure 9; or the first radius adjustment structure 9 and the blocking structure group 6 may be connected by a retractable connecting rod, and the blocking structure group 6 may be driven to move by the first radius adjustment structure 9, but is not limited to the above methods. Any method that can achieve the first radius adjustment structure 9 driving the blocking structure group 6 to move is within the scope of the technical solution protected by the embodiments of the present invention.

[0031] Optional, such as Figure 1 and Figure 2 As shown, in the embodiment of the present application, the first radius adjustment structure 9 can be fixed to the side of the first base plate 2 facing away from the transmission structure 5; the magnetic stimulation coil assembly also includes a shell (not shown in the figure), and the coil 3, the blocking structure group 6 and the transmission structure 5 are encapsulated in the shell.

[0032] Specifically, the first radius adjustment structure 9 can be arranged on the second side surface 10 of the first base plate 2, that is, the first radius adjustment structure 9 and the blocking structure group 6 are oppositely arranged on both sides of the magnetic stimulation coil assembly. At the same time, a housing can be arranged on the first side surface 4 of the first base plate 2, and the coil 3, the blocking structure group 6, the transmission structure 5, etc. located on the first side surface 4 are encapsulated in the housing. In this way, the coil 3, the blocking structure group 6, the transmission structure 5, etc. are located inside the entire magnetic stimulation coil assembly, the first radius adjustment structure 9 is located outside the magnetic stimulation coil assembly, and the housing (not shown in the figure) can play a good protective role for components such as the coil 3, the blocking structure group 6, and the transmission structure 5, avoiding the impact on the coil 3 caused by bumps during use. The arrangement of the first radius adjustment structure 9 outside also facilitates the adjustment of the diameter of the coil 3.

[0033] Figure 3 It is a partial structural schematic diagram of a magnetic stimulation coil assembly provided by an embodiment of the present invention. Optionally, reference can be made to Figures 1 to 3 , in a possible embodiment, the first radius adjustment structure 9 includes a radius adjustment knob 11; the coil unit 1 further includes a plurality of rotating terminals 12 and a plurality of chains 13. The chains 13 are respectively connected to the rotating terminals 12 and the radius adjustment knob 11. When the radius adjustment knob 11 rotates, it drives the rotating terminals 12 to rotate; the rotating terminals 12 are meshed and connected to the transmission structure 5. When the rotating terminals 12 rotate, they drive the transmission structure 5 to move; the blocking structure group 6 is fixed on the transmission structure 5, and when the transmission structure 5 moves, it drives the blocking structure group 6 to move.

[0034] Specifically, as Figures 1 to 3 , in this embodiment, the first radius adjustment structure 9 can be a radius adjustment knob 11. The radius adjustment knob 11 is respectively connected to the transmission structure 5 through the chain 13 and the rotating terminal 12. Among them, the rotating terminal 12 can be arranged at one end of each transmission structure 5 close to the radius adjustment knob 11; the radius adjustment knob 11 can be arranged at the center of the first base plate 2, but is not limited thereto. The chains 13 are connected to the rotating terminals 12 in a one-to-one correspondence. When the radius adjustment knob 11 rotates, each chain 13 drives the corresponding rotating terminal 12 to rotate. The rotating terminal 12 and the transmission structure 5 are connected in a meshing manner. When the rotating terminal 12 rotates, it drives the transmission structure 5 to move.

[0035] Among them, by way of example, reference can be made to Figure 3 , a plurality of grooves parallel to the extending direction of the rotating terminal 12 can be arranged on the side surface of the rotating terminal 12, and a plurality of protrusions meshing with the grooves can be arranged on the side surface of the transmission structure 5 (the surface of the transmission structure 5 in contact with the rotating terminal 12). In this way, when the rotating terminal 12 rotates, it can drive the transmission structure 5 to move. At the same time, the blocking structure group 6 can be fixed on the front surface of the transmission structure 5 (the surface of the transmission structure 5 not in contact with the rotating terminal 12), and then the movement of the transmission structure 5 drives the blocking structure group 6 to move.Figure 3 In the shown connection method, when the rotating terminal 12 rotates clockwise, the blocking structure group 6 moves towards the center of the coil 3, and the diameter of the coil 3 decreases; when the rotating terminal 12 rotates counterclockwise, the blocking structure group 6 moves away from the center of the coil 3, and the diameter of the coil 3 increases.

[0036] In addition, the connection methods between the radius adjustment knob 11, the chain 13, and between the chain 13 and the rotating terminal 12 can also adopt meshing connections. When the radius adjustment knob 11 rotates clockwise, all the rotating terminals 12 are driven to rotate clockwise through the chain 13; conversely, all the rotating terminals 12 are driven to rotate counterclockwise. At this time, by controlling the clockwise rotation of the radius adjustment knob 11, the diameter reduction of the coil 3 can be achieved; by controlling the counterclockwise rotation of the radius adjustment knob 11, the diameter expansion of the coil 3 can be achieved. Of course, in the actual application process, the connection methods between the radius adjustment knob 11, the chain 13, the rotating terminal 12, and the transmission structure 5 are not limited to this, and those skilled in the art can design according to actual needs. Exemplarily, in other possible embodiments, a clamping rod with a fixed-step slot can also be used, and the clamping rod is respectively connected to the rotating terminal 12 and the first radius adjustment structure 9, and then the rotation of the rotating terminal 12 is driven by adjusting the position of the slot. The embodiments of the present invention do not elaborate too much on this connection relationship, and any existing technology can be selected to implement it.

[0037] Optionally, the embodiments of the present invention do not limit the specific shape of the blocking structure 7. In the above embodiments, the blocking structure 7 is described as a rectangular baffle, but the actual setting method is not limited to this. In other possible embodiments, the blocking structure 7 can also be any one of an arc-shaped baffle and a columnar blocking structure 7. Any structure that can form the coil slot 8 is within the scope of the technical solutions protected by the embodiments of the present invention. When the blocking structure 7 is an arc-shaped baffle or a columnar blocking structure, the shape of the coil slot 8 formed by adjacent blocking structures 7 is relatively close to the shape of the coil 3 winding, which is beneficial to the uniform change of the diameter of each area of the coil 3 when adjusting the parameters of the coil 3.

[0038] Optionally, continue to refer to Figure 1 In possible embodiments, the transmission structure 5 includes a first sub-transmission structure 51 and a second sub-transmission structure 52, and the transmission directions of the first sub-transmission structure 51 and the second sub-transmission structure 52 are the same; the blocking structure 7 is a baffle structure, and the baffle structures within the same blocking structure group 6 are respectively connected to the first sub-transmission structure 51 and the second sub-transmission structure 52.

[0039] Specifically, as Figure 1As shown, in a preferred embodiment, the blocking structure 7 can be set as a baffle structure. The length of the baffle structure along the winding direction of the coil 3 is relatively large, which is beneficial to the support of the coil 3 and can prevent the coil 3 from deforming. When the blocking structure 7 is a baffle structure, the conveying structure 5 can be divided into a first sub-conveying structure 51 and a second sub-conveying structure 52, and the conveying directions of the first sub-conveying structure 51 and the second sub-conveying structure 52 are the same. Each baffle structure is connected to both the first sub-conveying structure 51 and the second sub-conveying structure 52 at the same time. The first sub-conveying structure 51 and the second sub-conveying structure 52 move synchronously, jointly driving the blocking structure 7 to move inward or outward.

[0040] Among them, each blocking structure 7 in the same blocking structure group 6 is connected to the same first sub-conveying structure 51 and the second sub-conveying structure 52. It can also be understood that in the coil unit 1, the number of the blocking structure groups 6 is the same as the number of the first sub-conveying structure 51 or the second sub-conveying structure 52. Exemplarily, when the number of the blocking structure groups 6 is 4, the numbers of the first sub-conveying structure 51 and the second sub-conveying structure 52 are both 4.

[0041] Correspondingly, the rotating terminal 12 can also be divided into a first sub-rotating terminal 121 and a second sub-rotating terminal 122, and the chain 13 can be divided into a first sub-chain 131 and a second sub-chain 132. The radius adjustment knob 11 controls the movement of the first sub-conveying structure 51 through the first sub-chain 131 and the first sub-rotating terminal 121; at the same time, it controls the movement of the second sub-conveying structure 52 through the second sub-chain 132 and the second sub-rotating terminal 122. Exemplarily, when the number of the blocking structure groups 6 is 4, the numbers of the first sub-rotating terminal 121, the second sub-rotating terminal 122, the first sub-chain 131 and the second sub-chain 132 are all 4.

[0042] Optionally, when the blocking structure 7 is a columnar blocking structure, the columnar blocking structure can be set to be connected to one sub-conveying structure. The length of the columnar structure along the winding direction of the coil 3 is relatively small, and the position of the columnar blocking structure can be adjusted more accurately by using one sub-conveying structure.

[0043] In addition, it should be noted that Figure 1 and Figure 2 In the shown embodiment, the first radius adjustment structure 9 does not penetrate the first bottom plate 2, and the chain 13 and the first radius adjustment structure 9 are arranged on the second side surface 10 of the first bottom plate 2. In other possible embodiments, the first radius adjustment structure 9 can also be set to penetrate the first bottom plate 2 and extend in a direction perpendicular to the first side surface 4 and the second side surface 10. At this time, the chain 13, the blocking structure group 6 and the conveying structure 5 can be arranged on the same side of the first bottom plate 2 and encapsulated in the housing at the same time. In this way, only the first radius adjustment structure 9 is outside the magnetic stimulation coil assembly, which is beneficial to the aesthetics of the magnetic stimulation coil assembly.

[0044] Optionally, continue to refer to Figure 2 In the embodiments of the present application, multiple transmission structures 5 can be set such that their transmission directions converge at the same point, and the angle α between the transmission directions of any two adjacent transmission structures 5 is equal.

[0045] Specifically, as can be seen from the above embodiments, each transmission structure 5 extends along different radial directions of the coil 3. On this basis, in this embodiment, the transmission directions of each transmission structure 5 can be set to converge at the same point, and this convergence point can be the center of the coil 3. At the same time, the angle α between the transmission directions of two adjacent transmission structures 5 along the winding direction of the coil 3 is set to be the same, that is, each transmission structure 5 equally divides the concentric circles formed by the coil 3 and extends outward along the radial direction of the equal division. In this setting method, each blocking structure group 6 surrounds the concentric circles formed by the coil 3 to ensure that the coil 3 remains circular as a whole when the blocking structure 7 moves.

[0046] It should be noted that the transmission structure 5 mentioned in the above embodiments refers to a transmission structure group composed of a first sub-transmission structure 51 and a second sub-transmission structure 52. That is, the equality of the angle between the transmission directions of any two adjacent transmission structures 5 means that the angles between the transmission directions of any two adjacent transmission structure groups are the same, and it can also be understood that the angles between the transmission directions of any two adjacent first sub-transmission structures 51 (or second sub-transmission structures 52) are the same.

[0047] In addition, in the embodiments of the present application, a plurality of baffle slots can be provided on the transmission structure 5. The baffle slots can be provided on the front surface of the transmission structure 5, and each blocking structure 7 is respectively clamped in the baffle slots. The radius of the coil 3 can be finely adjusted by adjusting the baffle slot where the blocking structure 7 is located.

[0048] Figure 4 It is a schematic structural diagram of another magnetic stimulation coil assembly provided by the embodiments of the present invention. Figure 5 For Figure 4 the schematic structural diagram of the magnetic stimulation coil assembly shown in another direction, refer to Figure 4 and Figure 5 Optionally, in possible embodiments, the magnetic stimulation coil assembly may include two coil units 1, and the coils 3 in the two coil units 1 are connected to form a figure-eight coil.

[0049] Specifically, as shown in Figure 4 and Figure 5As shown in the figure, in this embodiment, the magnetic stimulation coil assembly may include two coil units 1 in the above embodiment. Each coil unit 1 includes a first base plate 2, a conveying structure 5 disposed on the first base plate 2, a blocking structure group 6 connected to the conveying structure 5, and a coil 3 wound between the blocking structures 7 spirally wound within the blocking structure group 6. Among them, the coils 3 wound around the outermost blocking structures 7 in the two coil units 1 are connected to each other to form an 8-shaped coil (i.e., an eight-shaped coil). The 8-shaped coil has strong focusing properties and good magnetic stimulation effects. The 8-shaped coil is a commonly used coil in the art, and this embodiment will not elaborate on it in detail.

[0050] When the coil 3 is an 8-shaped coil, the diameter of the coil 3 can be adjusted by adjusting the positions of the blocking structures 7 in the respective conveying structures 5 within each coil unit 1. The adjustment method can refer to the above embodiment and will not be elaborated here.

[0051] Exemplarily, continuing to refer to Figure 4 and Figure 5 , in a possible embodiment, the magnetic stimulation coil assembly may further include a second radius adjustment structure 14; the second radius adjustment structure 14 is used to drive the blocking structure groups 6 in the two coil units 1 to move simultaneously along the conveying direction of the respective conveying structures 5.

[0052] Specifically, as shown in Figure 4 and Figure 5 , a second radius adjustment structure 14 can be provided in the magnetic stimulation coil assembly. The second radius adjustment structure 14 is used to simultaneously adjust the positions of the blocking structure groups 6 in the two coil units 1 on the conveying structure 5, thereby realizing synchronous contraction or expansion of different positions of the 8-shaped coil 3. [[ID=]18]

[0053] Among them, the second radius adjustment structure 14 can also be set with reference to the radius adjustment knob 11 in the above embodiment. A first radius adjustment structure 9 (which can also be a radius adjustment knob 11), a rotating terminal 12, and a chain 13 can be provided in each coil unit 1. Taking the embodiment shown in Figure 4 as an example, in each coil unit 1, the number of the first radius adjustment structures 9 can be 1, the number of the conveying structures 5 can be 4 (4 first sub-conveying structures 51 and 4 second sub-conveying structures 52), the number of the rotating terminals 12 can be 8, and the number of the chains 13 can be 8. In the entire magnetic stimulation coil assembly, the number of the first radius adjustment structures 9 is 2, the number of the conveying structures 5 is 8, and the numbers of the rotating terminals 12 and the chains 13 are both 16. At this time, the second radius adjustment structure 14 (radius adjustment knob 11) can be connected to the first radius adjustment knobs 11 in the two coil units 1 at the same time. By rotating the second radius adjustment structure 14, the two first radius adjustment structures 9 are driven to rotate simultaneously. Then, the first radius adjustment structures 9 drive the respective connected blocking structure groups 6 to move, and finally, the synchronous adjustment of the diameter of the 8-shaped coil is realized.

[0054] Wherein, when the second radius adjustment structure 14 is also a radius adjustment knob 11, the second radius adjustment structure 14 and the first radius adjustment structure 9 can be set to be meshed and connected by a chain 13. When the second radius adjustment structure 14 rotates clockwise, the two first radius adjustment structures 9 rotate clockwise simultaneously, thereby driving the blocking structure group 6 to move inward simultaneously, realizing the contraction of the figure-eight coil; when the second radius adjustment structure 14 rotates counterclockwise, the two first radius adjustment structures 9 rotate counterclockwise simultaneously, thereby driving the blocking structure group 6 to move outward simultaneously, realizing the expansion of the figure-eight coil.

[0055] Optionally, reference may continue to be made to Figure 4 and Figure 5 , in a possible embodiment, the magnetic stimulation coil assembly may further include a second bottom plate 15, and the first bottom plates 2 of the two coil units 1 are slidably fixed on the second bottom plate 15; the second radius adjustment structure 14 is fixed on the second bottom plate 15, and the second radius adjustment structure 14 is further used to adjust the distance between the first bottom plate 2 and the second bottom plate 15.

[0056] Specifically, as Figure 4 and Figure 5 shown, a second bottom plate 15 may also be provided in the magnetic stimulation coil assembly, and the first bottom plates 2 of the two coil units 1 are both slidably fixed on the second bottom plate 15. At the same time, the second radius adjustment structure 14 can be fixed on the second bottom plate 15, thereby using the second radius adjustment structure 14 to adjust the relative positional relationship between the two coil units 1. Exemplarily, the second radius adjustment structure 14 can be fixed at the center of the two coil units 1. It can be understood that the first radius adjustment structure 9 is fixedly connected to the first bottom plate 2. While the second radius adjustment structure 14 (radius adjustment knob 11) drives the first radius adjustment structure 9 (radius adjustment knob 11) to rotate, the second radius adjustment structure 14 can also drive the two first bottom plates 2 to approach or move away from each other. For example, when the second radius adjustment structure 14 drives the two first radius adjustment structures 9 to rotate clockwise, it can also control the two coil units 1 to gradually approach with the assistance of the chain 13, reducing the radius of the coil 3 while further narrowing the magnetic field focusing range and increasing the magnetic field focusing depth; when the second radius adjustment structure 14 drives the two first radius adjustment structures 9 to rotate counterclockwise, it can also control the two coil units 1 to gradually move away with the assistance of the chain 13, increasing the radius of the coil 3 while further expanding the magnetic field focusing range and increasing the magnetic field focusing depth. It should be noted that Figure 5 the coil 3 is not shown in

[0057] Among them, in the magnetic stimulation coil assembly, all structural components except the coil 3 are made of non-magnetic materials, such as quartz, polytetrafluoroethylene or plexiglass, etc., but not limited thereto. This is to avoid the influence of other structural components on the magnetic field of the coil 3.

[0058] Based on the same inventive concept, the embodiments of the present invention further provide a medical magnetic stimulation device, including the magnetic stimulation coil assembly provided in any embodiment of the present invention. The medical magnetic stimulation device may further include any component structures known to those skilled in the art, which are not elaborated or limited in the embodiments of the present invention. The medical magnetic stimulation device provided in the embodiments of the present invention includes all the technical features and corresponding beneficial effects of the magnetic stimulation coil assembly provided in any embodiment of the present invention, which will not be elaborated here.

[0059] Note that the above is only the preferred embodiment of the present invention and the applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here, and various obvious changes, re-adjustments, combinations with each other and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the inventive concept of the present invention, more other equivalent embodiments may be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A magnetic stimulation coil assembly, characterized in that, Applied to a medical magnetic stimulation device, the magnetic stimulation coil assembly includes at least one coil unit, and the coil unit includes: First base plate; a coil, the coil being laid on the first side surface of the first bottom plate; a plurality of conveying structures, the conveying structures being arranged on the first side surface, and the conveying directions of the plurality of conveying structures respectively extending along different radial directions of the coil; A plurality of blocking structure groups are connected to the plurality of transmission structures in a one-to-one correspondence, and the blocking structure groups include at least two blocking structures; within the same blocking structure group, the blocking structures are arranged along the transmission direction of the transmission structure; a coil slot is formed between two adjacent blocking structures in the blocking structure group; the coil is spiral-shaped, and the coil is clamped in different blocking structure groups and different coil slots in the same blocking structure group in sequence along the winding direction; the blocking structure group moves along the transmission direction of the transmission structure to adjust the diameter of the coil.

2. The magnetic stimulation coil assembly according to claim 1, wherein It also includes a first radius adjustment structure, which is connected to the blocking structure group. The first radius adjustment structure is used to drive the blocking structure group to move along the conveying direction of the conveying structure to adjust the diameter of the coil.

3. The magnetic stimulation coil assembly according to claim 2, wherein The first radius adjustment structure includes a radius adjustment knob; The coil unit further includes a plurality of rotating terminals and a plurality of chains, wherein the chains are respectively connected to the rotating terminals and the radius adjustment knobs, and when the radius adjustment knobs are rotated, the rotating terminals are driven to rotate; The rotating terminal is engaged with the transmission structure, and when the rotating terminal rotates, the transmission structure is driven to move; The blocking structure group is fixed on the conveying structure, and the conveying structure drives the blocking structure group to move when the conveying structure moves.

4. The magnetic stimulation coil assembly according to claim 1, wherein, The conveying structure includes a first sub-conveying structure and a second sub-conveying structure, and the conveying directions of the first sub-conveying structure and the second sub-conveying structure are the same; The blocking structure is a baffle structure, and the baffle structures in the same blocking structure group are respectively connected to the first sub-conveying structure and the second sub-conveying structure.

5. The magnetic stimulation coil assembly according to claim 1, characterized in that, The conveying directions of the multiple conveying structures converge at the same point, and the angles between the conveying directions of any two adjacent conveying structures are equal.

6. The magnetic stimulation coil assembly according to claim 1, wherein The magnetic stimulation coil assembly includes two coil units, and the coils in the two coil units are connected to form a figure-eight coil.

7. The magnetic stimulation coil assembly according to claim 6, characterized in that, It also includes a second radius adjustment structure; the second radius adjustment structure is used to drive the blocking structure groups in the two coil units to move simultaneously along the conveying direction of the conveying structure.

8. The magnetic stimulation coil assembly according to claim 7, wherein It also includes a second bottom plate, on which the first bottom plates of the two coil units are slidably fixed; The second radius adjustment structure is fixed to the second bottom plate, and the second radius adjustment structure is also used to adjust the distance between the first bottom plate and the second bottom plate.

9. The magnetic stimulation coil assembly according to claim 2, wherein The first radius adjustment structure is fixed to a side of the first bottom plate facing away from the conveying structure; The magnetic stimulation coil assembly further includes a housing in which the coil, the blocking structure set, and the transmission structure are enclosed.

10. The magnetic stimulation coil assembly according to claim 1, characterized in that, The blocking structure at least includes any one of a rectangular baffle, an arc-shaped baffle, and a columnar blocking structure.

11. A medical magnetic stimulation device, comprising the magnetic stimulation coil assembly according to any one of claims 1 to 10 above.

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