A coil device for magnetic stimulation therapy and a magnetic stimulation therapy instrument

Abstract

The application discloses a coil device and a magnetic stimulation therapeutic instrument for magnetic stimulation treatment. The coil device comprises a shell, a coil module and a flow guide piece. The shell is internally provided with a containing cavity. The shell is provided with a shell liquid inlet for allowing cooling liquid to enter the shell and a shell liquid outlet for allowing the cooling liquid to flow out of the shell. The coil module comprises a stimulation coil accommodated in the containing cavity. The flow guide piece is located at one end of the stimulation coil away from the shell liquid outlet. The flow guide piece is provided with a flow guide piece liquid inlet and a first flow guide piece liquid outlet. A liquid inlet pipe is connected between the shell liquid inlet and the flow guide piece liquid inlet. The flow guide piece and the liquid inlet pipe are additionally arranged in the shell. The liquid inlet pipe and the flow guide piece form a guiding pipeline of the cooling liquid in the shell. After the cooling liquid flows out of the flow guide piece, the cooling liquid can still maintain a sufficient flow state. In the process of flowing to the shell liquid outlet, the cooling liquid will not be blocked by air bubbles to cause poor flow. The cooling effect of the stimulation coil is consistent, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of magnetic stimulation equipment technology, specifically to a coil device and a magnetic stimulation therapy instrument for magnetic stimulation therapy. Background Technology

[0002] Magnetic stimulation equipment includes a computer, computer peripherals, a trolley, a stimulator, a cooling device, stimulation coils, and an electric seat. It is primarily used for the detection, auxiliary assessment, and treatment of central and peripheral nervous system function. The stimulator is used to discharge the coils according to parameters to achieve pulsed magnetic stimulation.

[0003] When a medical magnetic stimulation device is in operation, the stimulation coil outputs magnetic pulses according to parameters. During this process, a large current pulse flows through the stimulation coil, causing the coil temperature to rise. Excessive coil temperature not only affects the operation of the instrument and the user's experience but also poses a safety hazard. Therefore, magnetic stimulation devices typically include a liquid cooling system. Cooling water enters through the coil module inlet, flows over the surface of the stimulation coil, and exits from the coil module outlet, allowing the cooling water to circulate between the water tank and the coil module to cool the stimulation coil within the coil module.

[0004] In related technologies, after the cooling water enters from the coil module inlet, it spreads directly on the surface of the stimulation coil. During the flow of the cooling water, there is usually a problem of insufficient water flow power at the rear end of the liquid path. If the cooling water encounters air bubbles at the rear end of the liquid path, the cooling water will be blocked by the air bubbles and its flow will be obstructed, thus affecting the cooling effect of the stimulation coil, resulting in high local temperature of the stimulation coil, and thus affecting the user experience. Utility Model Content

[0005] Therefore, the technical problem to be solved by this application is to overcome the problem that the cooling water in the coil module of the existing medical magnetic stimulation device has a poor cooling effect on the stimulation coil, and the stimulation coil has a local high temperature, which affects the user experience. In this way, a coil device and magnetic stimulation therapy instrument for magnetic stimulation therapy are provided.

[0006] To solve the above-mentioned technical problems, the technical solution of this application is as follows:

[0007] A coil device for magnetic stimulation therapy, comprising:

[0008] The housing has an internal cavity, and the housing has a housing inlet for coolant to enter the housing and a housing outlet for coolant to flow out of the housing.

[0009] A coil module includes a stimulation coil and a magnetic core assembly housed within the receiving cavity, the magnetic core assembly extending at least partially into a central hole of the stimulation coil;

[0010] A flow guide is located at the end of the stimulation coil away from the liquid outlet of the housing, and the flow guide is provided with a flow guide inlet and a first flow guide outlet;

[0011] The liquid inlet pipe is connected between the liquid inlet of the housing and the liquid inlet of the guide component.

[0012] In some embodiments, the stimulation coil includes a rectangular coil, and the flow guide is disposed on the side of the rectangular coil near the housing at one apex corner, and the apex corner is the apex corner of the rectangular coil that is farthest from the liquid outlet of the housing.

[0013] In some embodiments, the liquid outlet of the first guide member is directed toward the stimulation coil.

[0014] In some embodiments, the stimulation coil includes a top surface facing the site to be stimulated, and the liquid outlet of the first guide member is directed toward the top surface of the stimulation coil.

[0015] In some embodiments, the flow guide includes a flow guide tube and a first flow guide portion; the flow guide tube is an internally through tubular structure, and the side wall of the flow guide tube facing the stimulation coil is provided with a first side outlet for coolant to flow out of the flow guide tube; the first flow guide portion is connected to the outer wall of the flow guide tube around the first side outlet, and the liquid outlet of the first flow guide is located on the first flow guide portion.

[0016] In some embodiments, the first guide portion extends radially outward along the guide tube.

[0017] In some embodiments, the first guide portion includes a first guide base plate and a pair of first guide side plates disposed opposite each other, the first guide base plate and the pair of first guide side plates forming the first guide groove.

[0018] In some embodiments, the stimulation coil includes a rectangular coil, and the flow guide is disposed on the side of the rectangular coil near the housing at one apex corner, and the apex corner is the apex corner of the rectangular coil farthest from the liquid outlet of the housing; the apex corner is formed by connecting the adjacent first side and second side of the rectangular coil; the length extension direction of one of the pair of first flow guide side plates is located on the side of the first side near the housing, and the length extension direction of the other first flow guide side plate is located on the side of the second side near the housing.

[0019] In some embodiments, a pair of first flow guide side plates and a first flow guide bottom plate are integrally formed, and both the pair of first flow guide side plates and the first flow guide bottom plate are integrally formed with the flow guide pipe.

[0020] In some embodiments, the guide member is further provided with a second guide member outlet, the liquid outlet of the second guide member outlet being directed toward the stimulation coil.

[0021] In some embodiments, the flow guide includes a flow guide tube and a second flow guide portion. The flow guide tube has a second side outlet on its sidewall facing the stimulation coil, allowing coolant to flow out of the flow guide tube. The second flow guide portion is connected to the outer wall of the flow guide tube surrounding the first side outlet, and the liquid outlet of the second flow guide is located on the second flow guide portion.

[0022] In some embodiments, the second flow guide extends radially outward along the flow guide tube.

[0023] In some embodiments, the second guide portion includes a second guide base plate and a pair of second guide side plates, the second guide base plate and the pair of second guide side plates forming a second guide groove, and the opening of the second guide groove at the end away from the guide pipe forms the liquid outlet of the second guide component.

[0024] In some embodiments, a pair of second flow guide side plates and a second flow guide bottom plate are integrally formed, and both the pair of second flow guide side plates and the second flow guide bottom plate are integrally formed with the flow guide pipe.

[0025] In some embodiments, the second flow guide plate is provided with a flow diversion bone.

[0026] In some embodiments, the guide tube is provided with a third guide outlet, and the liquid outlet of the third guide outlet is directed away from the stimulation coil.

[0027] In some embodiments, the housing includes a module bottom shell and a module cover plate, the module bottom shell having a top opening, the space inside the module bottom shell being the receiving cavity, and the module cover plate covering the module bottom shell to close the top opening of the module bottom shell;

[0028] The flow guide includes a flow guide tube and a first flow guide portion and a second flow guide portion connected to the outer wall of the flow guide tube. The flow guide tube has a first side outlet and a second side outlet on its side wall facing the stimulation coil. The first flow guide portion is connected to the outer wall of the flow guide tube around the first side outlet, and the second flow guide portion is connected to the outer wall of the flow guide tube around the second side outlet. Both the first flow guide portion and the second flow guide portion extend radially outward along the flow guide tube. The first flow guide outlet is located at the first flow guide portion, and the second flow guide outlet is located at the second flow guide portion.

[0029] The module cover plate covers the opening of the guide pipe near the module cover plate and the opening of the first guide section, so that the coolant in the guide pipe flows out through the outlet of the first guide component; the module bottom shell seals the opening of the guide pipe near the bottom shell and the opening of the second guide section, so that the coolant in the guide pipe flows out through the outlet of the second guide component.

[0030] In some embodiments, the stimulation coil includes a top surface facing the area to be stimulated, and a flow guiding gap is provided between the module cover and the top surface of the stimulation coil, wherein the liquid outlet height of the first flow guide is not lower than the height of the top surface.

[0031] In some embodiments, the module cover plate is provided with multiple hanging components, and the coil module is suspended and mounted on the module cover plate by the multiple hanging components.

[0032] In some embodiments, the module cover plate has multiple protrusions on the inner wall facing the stimulation coil, and the multiple protrusions are arranged in a dot matrix pattern.

[0033] In some embodiments, the guide tube is provided with a third guide outlet, which is located at the lower end of the guide near the bottom shell of the module; the outlet direction of the third guide outlet is opposite to the stimulation coil; the bottom shell of the module is provided with a positioning wall for limiting the position of the outer wall of the guide, and the positioning wall is provided with a slot corresponding to the position of the third guide outlet.

[0034] In some embodiments, the flow guide further includes a liquid inlet pipe communicating with the flow guide tube, the opening of the liquid inlet pipe forming the liquid inlet of the flow guide, and one end of the liquid inlet pipe being connected to the liquid inlet pipe.

[0035] In some embodiments, the housing is provided with a liquid outlet adapter fixed to the bottom shell of the module. The liquid outlet adapter is located at the end of the stimulation coil near the liquid outlet of the housing. The liquid outlet adapter has a liquid outlet adapter inlet and a liquid outlet adapter outlet. A liquid outlet pipe is connected between the liquid outlet adapter outlet and the liquid outlet of the housing. The coolant flowing out of the guide member can enter the liquid outlet adapter through the liquid outlet adapter inlet.

[0036] In some embodiments, the inlet of the liquid outlet connector is located at the upper end of the liquid outlet connector near the module cover plate. The inner wall of the module cover plate and the liquid outlet connector inlet at the corresponding positions is provided with an inwardly recessed guide groove. The upper end of the liquid outlet connector facing the module cover plate is provided with at least two guide protrusions. The guide protrusions extend at least partially into the guide grooves. The gap between two adjacent guide protrusions forms an opening for coolant to enter the liquid outlet connector inlet. The guide grooves and the guide protrusions are used to create a negative pressure at the liquid outlet connector inlet so that coolant in the housing can enter the liquid outlet connector.

[0037] In some embodiments, the bottom shell of the module is provided with a positioning groove and a fixing post, and the liquid outlet adapter is provided with a positioning pin that positions and cooperates with the positioning groove and a guide rib that guides and cooperates with the fixing post.

[0038] This application also provides a magnetic stimulation therapy device, comprising:

[0039] Magnetic stimulation host;

[0040] The coil device for magnetic stimulation therapy as described above; the coil device is electrically connected to the magnetic stimulation host and is used to perform magnetic stimulation therapy on the target area of ​​the patient;

[0041] A cooling device, connected to the coil assembly, is used to cool the coil assembly.

[0042] The technical solution of this application has the following advantages: an additional guide and inlet pipe are provided inside the housing. The coolant flows through the inlet pipe to the inlet of the guide and then flows out through the outlet of the first guide. The inlet pipe and the guide form a guide channel for the coolant inside the housing. The coolant can still maintain a sufficiently powerful flow state after flowing out of the guide. The coolant will not have a problem of obstruction due to air bubbles during the flow to the outlet of the housing, ensuring the consistency of the cooling effect at all parts of the stimulation coil and avoiding the impact on the user experience due to the local stable rise of the stimulation coil. Furthermore, in the prior art, the external supply pipe and external return pipe connecting the inlet and outlet of the external water tank and the magnetic coil device are all constrained within a single bellows. Therefore, the external supply pipe and external return pipe are usually located on the same side of the housing. In other words, the inlet and outlet of the housing are located on the same side of the housing. The coolant flows directly out through the inlet, then through the stimulation coil, and finally returns through the outlet. This results in insufficient flow power of the coolant due to the excessively long flow path, affecting the heat dissipation effect of the stimulation coil. In contrast, this application sets the guide component on the side of the stimulation coil away from the outlet of the housing. This shortens the flow path length of the coolant on the surface of the stimulation coil while ensuring that the coolant can flow sufficiently through the coil assembly, thus avoiding insufficient power and poor flow of the coolant at the rear end of the flow path. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the overall structure of the coil device for magnetic stimulation therapy in an embodiment of this application.

[0045] Figure 2 This is a schematic diagram of the module cover plate of the coil device for magnetic stimulation therapy in an embodiment of this application when it is opened;

[0046] Figure 3 This is a cross-sectional view of a coil device for magnetic stimulation therapy in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the installation structure of the guide component, inlet pipe, outlet pipe and outlet pipe on the bottom shell of the module in the embodiments of this application;

[0048] Figure 5This is a schematic diagram showing the connection relationship between the stimulation coil and the magnetic core assembly in an embodiment of this application;

[0049] Figure 6 This is a schematic diagram of the module cover plate in an embodiment of this application;

[0050] Figure 7 This is a schematic diagram of the module bottom shell in an embodiment of this application;

[0051] Figure 8 This is a three-dimensional structural diagram of the first surface of the guide member in an embodiment of this application;

[0052] Figure 9 This is a three-dimensional structural diagram of the second surface of the flow guide in an embodiment of this application;

[0053] Figure 10 This is a three-dimensional structural diagram of the first surface of the liquid outlet transfer tube in an embodiment of this application;

[0054] Figure 11 This is a three-dimensional structural diagram of the second side of the liquid outlet transfer tube in an embodiment of this application;

[0055] Figure 12 This is a schematic diagram of the overall structure of the first side of the coil device in the embodiment of this application;

[0056] Figure 13 This is a schematic diagram of the overall structure of the second side of the coil device in the embodiment of this application;

[0057] Figure 14 This is a schematic diagram of the structure of the coil device in the embodiment of this application when the coil plate is opened.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1. Housing; 11. Module bottom shell; 11a. Receiving cavity; 11b. Mounting platform; 111. Housing inlet; 112. Housing outlet; 113. Positioning post; 114. Positioning slot; 115. Fixing post; 116. Positioning groove; 117. Fixing perforated plate; 118. Coil inlet and outlet; 119. Snap-fit; 12. Module cover plate; 121. Long strip hanging component; 122. Cylindrical hanging component; 123. Buckle; 124. Protrusion; 125. Flow guide channel;

[0060] 2. Stimulation coil; 2a. Top surface; 2b. Bottom surface; 21. Coil lead-out terminal;

[0061] 3. Magnetic core assembly;

[0062] 4. Flow guide; 41. Flow guide pipe; 41a. Outlet of the third flow guide; 42. Inlet interface pipe; 42a. Inlet of the flow guide; 43. First flow guide section; 43a. Outlet of the first flow guide; 43b. First flow guide groove; 431. First flow guide bottom plate; 432. First flow guide side plate; 44. Second flow guide section; 44a. Outlet of the second flow guide; 44b. Second flow guide groove; 441. Second flow guide bottom plate; 442. Second flow guide side plate; 443. Diversion bone; 45. Positioning plate; 451. Positioning hole;

[0063] 5. Liquid inlet pipe;

[0064] 6. Liquid outlet adapter; 61. Liquid outlet adapter inlet; 62. Liquid outlet adapter outlet; 63. Guide frame; 64. Positioning pin; 65. Flow guide boss;

[0065] 7. Discharge pipe;

[0066] 8. Outer casing; 81. Bellows interface;

[0067] 9. Coil board. Detailed Implementation

[0068] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0069] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0070] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0071] Magnetic stimulation therapy is a medical device that uses magnetic fields for non-invasive treatment. It can be used for the diagnosis and treatment of neurological and mental diseases. Its working principle is to generate induced current in human tissues through rapidly changing magnetic fields, which stimulate nerve cells and thus regulate nerve activity.

[0072] A magnetic stimulation therapy device mainly consists of a magnetic stimulation unit, a coil device, and a cooling device. The magnetic stimulation unit discharges electricity to the coil device to generate a pulsed magnetic field. The coil device, electrically connected to the magnetic stimulation unit, is used to perform magnetic stimulation therapy on target areas of the patient, such as the pelvic floor, head, sacral nerves, or other peripheral muscles and nerves. The cooling device, connected to the coil device, is used to cool the coil device.

[0073] like Figure 1 - Figure 3 The coil device shown includes a housing 1, a coil module, a flow guide 4, an inlet pipe 5, an outlet adapter 6, and an outlet pipe 7. The coil module includes a stimulation coil 2 and a magnetic core assembly 3. The stimulation coil 2, magnetic core assembly 3, flow guide 4, and outlet adapter 6 are disposed within the housing 1. The housing 1 includes a module bottom shell 11 and a module cover plate 12. The module bottom shell 11 has a top opening, and the space inside the module bottom shell 11 is a receiving cavity 11a. The module cover plate 12 is placed on top of the module bottom shell 11 and is sealed to the module bottom shell 11 by adhesive to close the top opening of the module bottom shell 11.

[0074] like Figure 1 , Figure 2 and Figure 7 As shown, the bottom shell 11 of the module has a shell inlet 111 and a shell outlet 112 on the same side; the inlet pipe 5 is connected to the shell inlet 111 with silicone sealant, and the outlet pipe 7 is connected to the shell outlet 112 with silicone sealant to prevent the coolant inside the shell 1 from overflowing outward through the shell inlet 111 and the shell outlet 112. The coolant provided by the cooling device can enter the shell 1 through the inlet pipe 5, and the coolant inside the shell 1 can flow back to the cooling device outside the shell 1 through the outlet pipe 7.

[0075] like Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, the stimulation coil 2 and the magnetic core assembly 3 are housed within the receiving cavity 11a of the module's bottom shell 11. The stimulation coil 2 is specifically a rectangular coil, made of copper wire, with a central hole inside. The rectangular coil includes rounded rectangular coils, with rounded corners at the apex, which maintains the continuity of the coil winding while avoiding damage to the enamel layer of the copper wire. The magnetic core assembly 3 includes a pair of U-shaped magnets arranged side-by-side, with the same pole of the pair of U-shaped magnets extending into the central hole of the stimulation coil 2. A pair of coil inlets / outlets 118 are provided on the same side of the module's bottom shell 11. The stimulation coil 2 includes a pair of coil lead-out terminals 21, which extend outward through the coil inlets / outlets 118 of the module's bottom shell 11 and are sealed to the corresponding coil inlets / outlets 118. The pair of coil inlets / outlets 118 are used to connect to the positive and negative poles of the magnetic stimulation host, respectively.

[0076] When the coil device performs magnetic stimulation therapy on the patient's pelvic floor, a large current pulse is applied to the stimulation coil 2, which outputs a time-varying pulsed magnetic field. When the excitable tissues of the patient's pelvic floor are under the pulsed magnetic field, an induced current is generated in the excitable tissues. When the induced current exceeds the excitation threshold of the pelvic floor tissues, it causes local depolarization of the cell membranes of the pelvic floor tissues, resulting in excitatory action potentials, which excite the pelvic floor tissues and produce a series of physiological and biochemical reactions. The stimulation effect of the current generated by the induced voltage of the pulsed magnetic field stimulates and activates the human pelvic floor tissues to generate nerve impulses, promotes pelvic floor blood circulation, causes muscle contraction, and enhances the activity and strength of the pelvic floor muscles.

[0077] like Figure 2 and Figure 4 As shown, since the stimulation coil 2 is a rectangular coil, it has four vertices, each formed by connecting two adjacent sides of the stimulation coil 2. The guide member 4 is located on the side of one vertices of the stimulation coil 2 closest to the housing 1, and this vertices is the furthest from the liquid outlet 112 of the housing. The liquid outlet adapter 6 is located at the end of the stimulation coil 2 closest to the liquid outlet 112 of the housing. Combined with... Figure 8 and Figure 9 As shown, the flow guide 4 includes a flow guide tube 41, an inlet interface tube 42 communicating with the flow guide tube 41, and a first flow guide portion 43. The flow guide tube 41 is a tubular structure with openings at both ends along its axial direction, and the axial direction of the flow guide tube 41 is perpendicular to the module cover plate 12. The inlet interface tube 42 and the first flow guide portion 43 extend radially outward along the flow guide tube 41. The opening of the inlet interface tube 42 forms the flow guide inlet port 42a, and one end of the inlet tube 5 extending into the housing 1 is sealed and connected to the inlet interface tube 42. The opening of the first flow guide portion 43 forms the first flow guide outlet port 43a, and the outlet direction of the first flow guide outlet port 43a is towards the stimulation coil 2. Figure 10 and Figure 11As shown, the coolant outlet adapter 6 is provided with a coolant outlet adapter inlet 61 and a coolant outlet adapter outlet 62. One end of the coolant outlet pipe 7, which extends into the housing 1, is sealed to the coolant outlet adapter outlet 62. The coolant flowing out of the guide member 4 can enter the coolant outlet adapter 6 through the coolant outlet adapter inlet 61, and then be discharged out of the housing 1 through the coolant outlet adapter outlet 62 and the coolant outlet pipe 7.

[0078] By additionally setting a guide member 4 and an inlet pipe 5 inside the housing 1, and placing the guide member 4 on the side of the stimulation coil 2 away from the outlet 112 of the housing, the coolant flows through the inlet pipe 5 to the inlet 42a of the guide member 4, and then flows out through the first outlet 43a of the guide member 4. Compared with the prior art where the coolant directly enters the inner cavity of the housing 1 through the inlet 111 of the housing, flows through the stimulation coil 2, and finally flows out of the housing 1 through the outlet 112 of the housing, the inlet pipe 5 and the guide member 4 form a guide pipe for the coolant inside the housing 1. After the coolant flows out from the guide member 4, it can still maintain a sufficiently powerful flow state and flow sequentially to the stimulation coil 2 and the outlet pipe 7. When the coolant flows through the stimulation coil 2, it can dissipate heat from the stimulation coil 2. Because the flow power of the coolant is sufficient, the coolant is less likely to have a flow obstruction problem due to air bubbles in the housing 1 when it passes through the stimulation coil 2, thereby ensuring the consistency of the cooling effect at all parts of the stimulation coil 2 and improving the user experience. In fact, this application straightens the original meandering coolant flow path on the surface of the stimulation coil 2 by setting the guide 4 on the side of the stimulation coil 2 away from the liquid outlet 112 of the housing, thus shortening the length of the coolant flow path on the surface of the stimulation coil 2, so as to avoid insufficient power and poor flow of coolant at the rear end of the flow path.

[0079] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the stimulation coil 2 includes a top surface 2a and a bottom surface 2b disposed opposite to each other, with the thickness direction of the stimulation coil 2 perpendicular to the top surface 2a and the bottom surface 2b. The top surface 2a faces the inner wall of the module cover plate 12, and the outlet direction of the first guide member outlet 43a faces the top surface 2a of the stimulation coil 2, allowing the coolant flowing out of the first guide member outlet 43a to flow directly to the top surface 2a. Since the top surface 2a of the stimulation coil 2 directly faces the module cover plate 12 and the stimulated area outside the module cover plate 12, the cooling effect at various locations on the top surface 2a of the stimulation coil 2 directly affects the user experience. The outlet direction of the first guide member outlet 43a facing the top surface 2a facilitates the direct flow of coolant to the top surface 2a of the stimulation coil 2, improving the heat dissipation effect at various locations on the top surface 2a.

[0080] like Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, in some embodiments, the guide tube 41 has a first side outlet on the side wall facing the stimulation coil 2, allowing coolant to flow out of the guide tube 41. One end of the first guide portion 43 is connected to the outer wall of the guide tube 41 around the first side outlet, and the liquid outlet 43a of the first guide member is located on the first guide portion 43, so that the coolant can be directly and forcibly guided to the top surface 2a of the coil through the first guide portion 43, preventing the coolant from overflowing from the side wall of the guide tube 41 to other locations and thus failing to effectively cool the heat-accumulated top surface 2a.

[0081] Furthermore, the first guide section 43 forms a first guide groove 43b on the outer side of the first side outlet for the coolant to flow outward. The opening of the first guide groove 43b on the side away from the guide pipe 41 is the outlet 43a of the first guide element. The arrangement of the first guide section 43 on one side of the guide pipe 41 allows the coolant flowing out of the guide pipe 41 to flow along the first guide groove 43b in the first guide section 43 to the top surface 2a of the stimulation coil 2, preventing the coolant from flowing downward through the gap between the guide pipe 41 and the stimulation coil 2. This allows more coolant flowing out of the outlet 43a of the first guide element to flow to the top surface 2a of the stimulation coil 2, improving the heat dissipation effect of the stimulation coil 2.

[0082] like Figure 8 and Figure 9 As shown, in some embodiments, the first guide section 43 includes a first guide base plate 431 and a pair of opposing first guide side plates 432, which together form a first guide groove 43b. The pair of first guide side plates 432 and the first guide base plate 431 are integrally formed, and one end of each pair of first guide side plates 432 and the first guide base plate 431 is integrally formed with the guide pipe 41. This integrally formed structure of the first guide section 43 and the guide pipe 41 allows the guide component 4 of the desired shape to be manufactured in one step using a mold, resulting in low manufacturing costs.

[0083] like Figure 2 , Figure 3 , Figure 8 and Figure 9As shown, in some embodiments, the first guide plate 431 is flush with the top surface of the module cover plate 12 and the top surface 2a of the stimulation coil 2. The apex is formed by connecting the adjacent first and second sides of the stimulation coil 2. One of the first guide plates 432 extends along the side of the first side closer to the housing 1, and the other first guide plate 432 extends along the side of the second side closer to the housing 1. A fan-shaped water outlet is formed on the first guide plate 431, flowing from the first side outlet to the liquid outlet 43a of the first guide element. With this configuration, the pair of first guide plates 432 can guide the coolant to flow out over a large area and at a large angle towards the stimulation coil 2, making the diffusion of the coolant on the surface of the stimulation coil 2 more uniform, improving the heat dissipation uniformity of the stimulation coil 2, and effectively reducing air bubbles on the surface of the stimulation coil 2, solving the problem of trapped air on the surface of the stimulation coil 2, thereby preventing localized heat accumulation in the stimulation coil 2 and improving the cooling effect on the high-temperature area of ​​the stimulation coil 2.

[0084] like Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, in some embodiments, the flow guide 4 further includes a second flow guide portion 44 connected to the flow guide pipe 41. The second flow guide portion 44 is provided with a second flow guide outlet 44a, and the flow direction of the second flow guide outlet 44a is the same as that of the first flow guide outlet 43a. The arrangement of the second flow guide outlet 44a facilitates the flow of coolant to the side of the coil module, which can dissipate heat from the side of the coil module and the magnetic core assembly 3. In conjunction with the coolant flowing out of the first flow guide outlet 43a, multiple different coolant flow paths can be formed within the housing 1, better expelling air bubbles within the module housing 1 and improving the overall heat dissipation effect of the coil module.

[0085] like Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, in some embodiments, the second guide portion 44 extends radially outward along the guide tube 41, and the shape of the second guide portion 44 is similar to that of the first guide portion 43. A second side outlet is provided on the side wall of the guide tube 41 facing the stimulation coil 2, allowing coolant to flow out of the guide tube 41. One end of the second guide portion 44 is connected to the outer wall of the guide tube 41 surrounding the first side outlet. The second guide portion 44 forms a second guide groove 44b outside the second side outlet, allowing coolant to flow outward. The opening of the second guide groove 44b on the side away from the guide tube 41 is the outlet 44a of the second guide component. The arrangement of the second guide portion 44 on one side of the guide tube 41 facilitates more coolant flowing from the outlet 44a of the second guide component towards the outlet 112 of the housing, improving the heat dissipation effect of the coil module.

[0086] like Figure 8 and Figure 9 As shown, in some embodiments, the second guide section 44 includes a second guide base plate 441 and a pair of opposing second guide side plates 442, which together form a second guide groove 44b. The pair of second guide side plates 442 and the second guide base plate 441 are integrally formed, and one end of each pair of second guide side plates 442 and the second guide base plate 441 is integrally formed with the guide pipe 41. The integrally formed structure of the first guide section 43, the second guide section 44, and the guide pipe 41 allows the guide component 4 of the desired shape to be manufactured in one step by a mold.

[0087] like Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, in some embodiments, the bottom surface of the second guide plate 441 facing the module bottom shell 11 is the bottom surface of the second guide groove 44b, and a fan-shaped water outlet surface can be formed on the second guide plate 441, flowing from the second side outlet to the liquid outlet 44a of the second guide element. With this configuration, a pair of second guide side plates 442 can guide the coolant to flow out over a wide range and at a large angle towards the direction of the stimulation coil 2, improving the overall heat dissipation effect of the coil module.

[0088] like Figure 8 and Figure 9 As shown, in some embodiments, a flow divider 443 is provided on the second flow guide base plate 441. The flow divider 443 can increase the water pressure and flow rate of the coolant flowing out of the outlet 44a of the second flow guide, improve the exhaust effect, and the flow divider 443 can divide the coolant flowing out of the outlet 44a of the second flow guide into two water streams flowing in different directions, and the two water streams flow to two sides of the coil module respectively, further improving the overall heat dissipation effect of the coil module.

[0089] like Figure 2 , Figure 3 and Figure 9As shown, in some embodiments, since the stimulation coil 2 and magnetic core assembly 3 of the housing 1 are immersed in coolant, and the temperature of the stimulation coil 2 and magnetic core assembly 3 is high during operation, bubbles are easily generated on the surface of the stimulation coil 2 and magnetic core assembly 3. If these bubbles accumulate too much and diffuse to the surface of the stimulation coil 2, air trapping will occur, affecting the heat dissipation effect of the stimulation coil 2. Therefore, it is necessary to remove the bubbles in the housing 1 as much as possible. Since the liquid outlets 43a and 44a of the first and second guide components mainly flow towards the stimulation coil 2, the air bubbles on the side of the guide tube 41 facing the stimulation coil 2 are easily carried by the water flow to the drain pipe and discharged from the shell 1. However, the flow rate of the coolant on the side of the guide tube 41 away from the stimulation coil 2 is slow. After the air bubbles flow into the space on the side of the guide tube 41 away from the stimulation coil 2, they are not easily carried out of the shell 1 by the flowing coolant. The air bubbles tend to accumulate in the area of ​​the guide tube 41 away from the stimulation coil 2. Too many accumulated air bubbles will generate greater resistance and make it difficult to discharge them from the shell 1. Once the accumulated air bubbles diffuse to the surface of the stimulation coil 2, it will cause air trapping on the surface of the stimulation coil 2. Therefore, it is necessary to avoid the accumulation of air bubbles in the space on the side of the guide tube 41 away from the stimulation coil 2 as much as possible. To solve this problem, this application additionally provides a third guide outlet 41a on the guide tube 41, and the outlet direction of the third guide outlet 41a is opposite to that of the stimulation coil 2. The coolant flowing out of the third guide outlet 41a can not only dissipate heat on the magnetic core assembly 3 in the area of ​​the guide tube 41 opposite to the stimulation coil 2, but also drive the flow of coolant in the area. When there is no obvious accumulation of bubbles in the area, the flowing coolant can carry away the bubbles, preventing the bubbles from accumulating in the area and thus preventing the accumulated bubbles from spreading to the surface of the stimulation coil 2 and causing the problem of trapped air on the surface of the stimulation coil 2.

[0090] like Figure 8 and Figure 9 As shown, in some embodiments, in order to allow more coolant in the guide tube 41 to flow out toward the stimulation coil 2, especially out of the top surface 2a of the stimulation coil 2, the flow rate of the first guide outlet 43a is greater than or equal to the flow rate of the second guide outlet 44a, and the flow rate of the second guide outlet 44a is greater than the flow rate of the third guide outlet 41a.

[0091] like Figure 2 , Figure 3 , Figure 8 and Figure 9As shown, in some embodiments, the first guide section 43 is located at the upper end of the guide pipe 41 near the module cover plate 12. The module cover plate 12 simultaneously covers the upper opening of the guide pipe 41 near the module cover plate 12 and the upper opening of the first guide section 43 facing the module cover plate 12, so that the coolant in the guide pipe 41 can better flow along the outlet direction of the first guide member outlet 43a to the top surface 2a of the stimulation coil 2, thereby improving the heat dissipation effect of the stimulation coil 2. The second guide section 44 is located at the lower end of the guide pipe 41 near the module bottom shell 11. The module bottom shell 11 simultaneously blocks the lower opening of the guide pipe 41 near the module bottom shell 11 and the lower opening of the second guide section 44 facing the module bottom shell 11, so that the coolant flowing out of the guide pipe 41 can better flow along the outlet direction of the second guide member outlet 44a to the side wall of the coil module, thereby improving the overall heat dissipation effect of the coil module. The third guide outlet 41a is located at the lower end of the guide 4 near the bottom shell 11 of the module.

[0092] like Figure 4 and Figure 7 As shown, in some embodiments, the portions of the inlet pipe 5 and the outlet pipe 7 extending into the housing 1 are located close to the inner wall of the module bottom shell 11. The side wall of the module bottom shell 11 near the inlet pipe 5 is provided with a fixing plate 117. The fixing plate 117 has fixing holes. The portion of the inlet pipe 5 located inside the housing 1 passes through the fixing holes of the fixing plate 117. The fixing plate 117 is used to prevent the inlet pipe 5 from shifting during use.

[0093] like Figure 8 and Figure 9 As shown, in some embodiments, the outer wall of the guide tube 41 is fixed with an outwardly protruding positioning plate 45, the positioning plate 45 is provided with a positioning hole 451, and the module bottom shell 11 is provided with a positioning post 113 that can extend into the positioning hole 451 for positioning the guide member 4. The module bottom shell 11 is also provided with a positioning wall for positioning the lower end of the guide member 4. The positioning wall includes a pair of positioning slots 114 integrally connected to the module bottom shell 11. The pair of positioning slots 114 match the outer wall of the guide tube 41 and the second guide part 44, and a slot is formed between the pair of positioning slots 114 corresponding to the position of the third guide member outlet 41a, so that the coolant through the third guide member outlet 41a flows from the slot to the rear end of the coil module away from the housing inlet 111 and the housing outlet 112 for cooling and temperature reduction, especially for the magnetic core area. The positioning post 113 and the limiting groove 114 can fix the position of the flow guide 4 on the module bottom shell 11, improve the stability of the flow guide 4, and prevent the flow guide 4 from shaking or changing direction under the action of the internal fluid. In some alternative embodiments, the flow guide 4 can also be fixed to the module bottom shell 11 by adhesive bonding.

[0094] like Figure 10 and Figure 11As shown, in some embodiments, the inlet 61 of the outlet adapter is located at the upper end of the outlet adapter 6 near the module cover plate 12. The inner wall of the module cover plate 12 and the outlet adapter inlet 61 at corresponding positions is provided with an inwardly recessed guide groove 125. The upper end of the outlet adapter 6 facing the module cover plate 12 is provided with three circumferentially spaced guide protrusions 65. Parts of the guide protrusions 65 extend into the guide groove 125, and the gap between two adjacent guide protrusions 65 forms an opening for coolant to enter the outlet adapter inlet 61. The guide groove 125 and the guide protrusions 65 are used to create a negative pressure at the outlet adapter inlet 61 so that the coolant in the housing 1 can enter the outlet adapter 6. The bottom shell 11 of the module is provided with a positioning groove 116 and a fixing post 115. The outlet adapter 6 is provided with a positioning pin 64 that positions and cooperates with the positioning groove 116 and a guide rib 63 that guides and cooperates with the fixing post 115. The liquid outlet adapter 6 is fixed to the module bottom shell 11 by a positioning pin 64 and a guide rib 63. In some alternative embodiments, the liquid outlet adapter 6 can also be fixed to the module bottom shell 11 by adhesive bonding.

[0095] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the inner sidewall of the module bottom shell 11 is provided with a plurality of fasteners 119, and the outer periphery of the module cover plate 12 is provided with a plurality of snap fasteners 123 that engage with the plurality of fasteners 119 one by one; the module bottom shell 11 and the module cover plate 12 are structurally reinforced by the cooperation of the fasteners 119 and the snap fasteners 123. The module bottom shell 11 and the module cover plate 12 are made of PC plastic, and the strength is combined with the snap fasteners 123 by adhesive to meet the pressure resistance requirements.

[0096] like Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, in some embodiments, the inner wall of the module cover plate 12 is provided with multiple hanging members, and the coil module is suspended on the module cover plate 12 by the multiple hanging members. Specifically, the hanging members include several elongated hanging members 121 and several cylindrical hanging members 122. The installation method of suspending the coil module on the module cover plate 12 can realize the suspended setting of the coil module in the housing 1, which facilitates the flow of coolant around the coil module and helps to improve the heat dissipation efficiency of the coolant; moreover, it is also more convenient to disassemble and assemble. There is a flow guiding gap between the inner wall surface of the module cover plate 12 and the top surface 2a of the stimulation coil 2. The liquid outlet height of the first flow guiding member outlet 43a is not lower than the height of the top surface 2a, so that the coolant flowing out of the first flow guiding member outlet 43a flows directly into the top surface 2a of the stimulation coil 2. The formation of the flow guiding gap facilitates the flow of coolant in the narrow gap and the diffusion outward along the plane to form laminar flow, so that the coolant can uniformly dissipate heat to all positions of the top surface 2a of the stimulation coil 2.

[0097] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the module cover plate 12 has multiple protrusions 124 extending squarely toward the inner wall of the stimulation coil 2. The arrangement of these multiple protrusions 124 ensures the existence of a flow guide gap. Because the module cover plate 12 is susceptible to deformation, the multiple protrusions 124 ensure that coolant can still pass between the stimulation coil 2 and the module cover plate 12 even when the module cover plate 12 deforms. The multiple protrusions 124 are arranged in a dot matrix pattern. This dot matrix arrangement of protrusions 124 can be considered a micro-flow guide structure, which promotes the diffusion of coolant within the flow guide gap by locally accelerating or deflecting the coolant, optimizing the overall coolant distribution, and reducing flow dead zones. Furthermore, the multiple protrusions 124 can disrupt the laminar boundary layer near the wall, reducing overall flow resistance and improving downstream flow stability.

[0098] like Figure 12 , Figure 13 and Figure 14 As shown, in some embodiments, the coil device further includes an outer housing 8 with an internal mounting cavity. After the module bottom shell 11 and module cover plate 12 are assembled, they can be placed inside the outer housing 8 as a whole, and then the coil plate 9 is sealed and connected at an opening on one side of the outer housing 8. The outer housing 8 can serve as secondary protection, and it provides a wire outlet interface and a bellows interface 81, which facilitates connection to a bellows. The coil plate 9 is equipped with a temperature sensor for temperature detection.

[0099] This application also provides a magnetic stimulation therapy device, including a magnetic stimulation host, a coil device, and a cooling device. The magnetic stimulation host is used to discharge onto the coil device to generate a pulsed magnetic field. The coil device is the aforementioned coil device for magnetic stimulation therapy, electrically connected to the magnetic stimulation host, and used to perform magnetic stimulation therapy on target areas of the patient, such as the pelvic floor, head, sacral nerve, or other peripheral muscles and nerves. The cooling device is connected to the coil device and is used to cool the coil device.

[0100] In summary, the coil device and magnetic stimulation therapy instrument for magnetic stimulation therapy provided in this application embodiment, by additionally setting a guide 4, an inlet pipe 5, an outlet pipe 6, and an outlet pipe 7 inside the housing 1, allows the coolant to flow through the inlet pipe 5 to the inlet 42a of the guide 4, and then out through the first outlet 43a, the second outlet 44a, and the third outlet 41a of the guide 4. The inlet pipe 5 and the guide 4 form a guide pipe for the coolant inside the housing 1. After the coolant flows out from the guide 4, it can still maintain a sufficiently powerful flow state. During the process of the coolant flowing to the outlet 112 of the housing, there will be no problem of flow obstruction due to air bubbles, ensuring the consistency of the cooling effect at all parts of the stimulation coil 2, and avoiding the impact on the user experience due to the local stable rise of the stimulation coil 2.

[0101] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A coil arrangement for magnetic stimulation therapy, characterized in that, include: The housing (1) has an internal cavity (11a) and a housing inlet (111) for coolant to enter the housing (1) and a housing outlet (112) for coolant to flow out of the housing (1). The coil module includes a stimulation coil (2) and a magnetic core assembly (3) housed within the receiving cavity (11a); The guide (4) is located at the end of the stimulation coil (2) away from the liquid outlet (112) of the housing. The guide (4) is provided with a guide inlet (42a) and a first guide outlet (43a). The liquid inlet pipe (5) is connected between the liquid inlet (111) of the housing and the liquid inlet (42a) of the guide member.

2. The coil arrangement for magnetic stimulation therapy according to claim 1, characterized in that, The stimulation coil (2) includes a rectangular coil, and the guide (4) is disposed on the side of the rectangular coil near the housing (1) at one of its apex corners, and the apex corner is the apex corner of the rectangular coil that is farthest from the liquid outlet (112) of the housing.

3. The coil arrangement for magnetic stimulation therapy according to claim 1, characterized in that, The liquid outlet (43a) of the first guide member is directed toward the stimulation coil (2).

4. The coil arrangement for magnetic stimulation therapy according to claim 3, characterized in that, The stimulation coil (2) includes a top surface (2a) which faces the part to be stimulated, and the liquid outlet (43a) of the first guide member is directed toward the top surface (2a) of the stimulation coil (2).

5. The coil arrangement for magnetic stimulation therapy according to claim 4, characterized in that, The guide (4) includes a guide tube (41) and a first guide portion (43). The guide tube (41) has a first side outlet on the side wall facing the stimulation coil (2). The first guide portion (43) is connected to the outer wall of the guide tube (41) around the first side outlet. The liquid outlet (43a) of the first guide is located on the first guide portion (43).

6. The coil arrangement for magnetic stimulation therapy according to claim 5, characterized in that, The first flow guide (43) includes a first flow guide bottom plate (431) and a pair of first flow guide side plates (432) disposed opposite to each other. The first flow guide bottom plate (431) and the pair of first flow guide side plates (432) form a first flow guide groove (43b). The opening of the first flow guide groove (43b) away from the flow guide pipe (41) forms the liquid outlet (43a) of the first flow guide component. The pair of first flow guide side plates (432) and the first flow guide bottom plate (431) are integrally formed, and the pair of first flow guide side plates (432) and the first flow guide bottom plate (431) are both integrally formed with the flow guide pipe (41).

7. The coil arrangement for magnetic stimulation therapy according to claim 6, characterized in that, The stimulation coil (2) includes a rectangular coil. The flow guide (4) is disposed on the side of the rectangular coil near the housing (1) at one of its apex corners. The apex corner is the apex corner of the rectangular coil that is farthest from the liquid outlet (112) of the housing. The apex corner is formed by connecting the adjacent first side and second side of the rectangular coil. One of the pair of first flow guide side plates (432) extends in the direction of its length on the side of the first side closer to the housing (1), and the other first flow guide side plate (432) extends in the direction of its length on the side of the second side closer to the housing (1).

8. Coil arrangement for magnetic stimulation therapy according to one of claims 1 to 7, characterized in that The guide member (4) is also provided with a second guide member outlet (44a), and the outlet direction of the second guide member outlet (44a) is towards the stimulation coil (2).

9. The coil arrangement for magnetic stimulation therapy according to claim 8, characterized in that, The guide member (4) includes a guide tube (41) and a second guide portion (44). The guide tube (41) has a second side outlet on the side wall facing the stimulation coil (2). The second guide portion (44) is connected to the outer wall of the guide tube (41) around the second side outlet. The liquid outlet (44a) of the second guide member is located on the second guide portion (44).

10. The coil arrangement for magnetic stimulation therapy according to claim 9, characterized in that, The second guide section (44) includes a second guide bottom plate (441) and a pair of second guide side plates (442). The second guide bottom plate (441) and the pair of second guide side plates (442) form a second guide groove (44b). The opening of the second guide groove (44b) away from the guide pipe (41) forms the liquid outlet (44a) of the second guide component. The pair of second guide side plates (442) and the second guide bottom plate (441) are integrally formed, and the pair of second guide side plates (442) and the second guide bottom plate (441) are both integrally formed with the guide pipe (41).

11. The coil arrangement for magnetic stimulation therapy according to claim 10, characterized in that, The second guide plate (441) is provided with a diversion bone position (443).

12. The coil arrangement for magnetic stimulation therapy according to one of claims 1-7, 9-11, characterized in that, The guide member (4) is provided with a third guide member outlet (41a), and the outlet direction of the third guide member outlet (41a) is opposite to that of the stimulation coil (2).

13. The coil arrangement for magnetic stimulation therapy according to claim 1, characterized in that, The housing (1) includes a module bottom shell (11) and a module cover plate (12). The module bottom shell (11) has a top opening. The space inside the module bottom shell (11) is the receiving cavity (11a). The module cover plate (12) covers the module bottom shell (11) to close the top opening of the module bottom shell (11). The flow guide (4) includes a flow guide tube (41) and a first flow guide portion (43) and a second flow guide portion (44) connected to the outer wall of the flow guide tube (41); the first flow guide outlet (43a) is provided in the first flow guide portion (43), and the second flow guide portion (44) is provided with a second flow guide outlet (44a); the flow direction of the first flow guide outlet (43a) and the second flow guide outlet (44a) is towards the stimulation coil (2); The module cover plate (12) covers the opening of the guide pipe (41) near the module cover plate (12) and the opening of the first guide part (43) so that the coolant in the guide pipe (41) flows out through the liquid outlet (43a) of the first guide part; The module bottom shell (11) is sealed at the opening of the guide pipe (41) near the end of the module bottom shell (11) and the opening of the second guide part (44) so ​​that the coolant in the guide pipe (41) flows out through the outlet (44a) of the second guide part.

14. The coil arrangement for magnetic stimulation therapy according to claim 13, characterized in that, The stimulation coil (2) includes a top surface (2a) which faces the area to be stimulated. There is a flow guide gap between the module cover plate (12) and the top surface (2a) of the stimulation coil (2). The liquid outlet height of the first flow guide outlet (43a) is not lower than the height of the top surface (2a).

15. The coil arrangement for magnetic stimulation therapy according to claim 13 or 14, characterized in that, The module cover plate (12) has multiple protrusions (124) on the inner wall facing the stimulation coil (2).

16. The coil arrangement for magnetic stimulation therapy according to claim 13, characterized in that, The guide tube (41) is provided with a third guide outlet (41a), which is located at the lower end of the guide (4) near the bottom shell (11) of the module; the outlet direction of the third guide outlet (41a) is opposite to the stimulation coil (2); the bottom shell (11) of the module is provided with a positioning wall for limiting the position of the outer wall of the guide (4), and the positioning wall is provided with a slot corresponding to the position of the third guide outlet (41a).

17. The coil arrangement for magnetic stimulation therapy according to claim 13, characterized in that, The housing (1) is provided with a liquid outlet adapter (6) fixed on the bottom shell (11) of the module. The liquid outlet adapter (6) is located at the end of the stimulation coil (2) near the liquid outlet (112) of the housing. The liquid outlet adapter (6) is provided with a liquid outlet adapter inlet (61) and a liquid outlet adapter outlet (62). A liquid outlet pipe (7) is connected between the liquid outlet adapter outlet (62) and the liquid outlet (112) of the housing. The coolant flowing out of the guide member (4) can enter the liquid outlet adapter (6) through the liquid outlet adapter inlet (61).

18. The coil arrangement for magnetic stimulation therapy according to claim 17, characterized in that, The liquid outlet inlet (61) of the liquid outlet connector is located at the upper end of the liquid outlet connector (6) near the module cover plate (12). The inner wall of the module cover plate (12) and the liquid outlet inlet (61) at the corresponding positions is provided with an inwardly recessed guide groove (125). The upper end of the liquid outlet connector (6) facing the module cover plate (12) is provided with at least two guide protrusions (65). The guide protrusions (65) extend at least partially into the guide groove (125). The gap between two adjacent guide protrusions (65) forms an opening for coolant to enter the liquid outlet inlet (61). The guide groove (125) and the guide protrusions (65) are used to create a negative pressure at the liquid outlet inlet (61) of the liquid outlet connector so that the coolant in the housing (1) can enter the liquid outlet connector (6).

19. A magnetic stimulation therapy apparatus, characterized by comprising: include: Magnetic stimulation host; The coil device for magnetic stimulation therapy as described in any one of claims 1-18; the coil device is electrically connected to the magnetic stimulation host and is used to perform magnetic stimulation therapy on a target area of ​​the patient; A cooling device, connected to the coil assembly, is used to cool the coil assembly.

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