Repeated transcranial magnetic stimulator

Abstract

The utility model belongs to the technical field of transcranial magnetic stimulation, and particularly relates to a repeated transcranial magnetic stimulator, which comprises a case and an electromagnetic emission component, universal wheels are mounted at four corners of the bottom of the case, and a transcranial magnetic stimulator host and a cooling liquid tank are respectively mounted in the case. A cable bundle is installed between the output end of the transcranial magnetic stimulator host and the input end of the electromagnetic emission assembly. According to the repeated transcranial magnetic stimulation instrument, the aluminum alloy coil is spread all over the bottom of the electromagnetic coil and can make full contact with the bottom of the electromagnetic coil, so that the heat dissipation area of the aluminum alloy coil is enlarged, comprehensive heat exchange and dissipation are conducted on the aluminum alloy coil, meanwhile, the graphite heat conduction plate is additionally arranged between the aluminum alloy coil and the electromagnetic coil, and the heat dissipation efficiency is improved. The graphite heat conduction plate is in all-dimensional contact with the bottom of the electromagnetic coil, the heat dissipation effect on the electromagnetic coil is improved, the graphite heat conduction plate is dissipated through the aluminum alloy coil pipe, the axial flow fan promotes flowing of air in the electromagnetic bin, and heat in the electromagnetic bin is exchanged with the outside through the mesh plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to transcranial magnetic stimulation technical field especially, it relates to repeat transcranial magnetic stimulation appearance. BACKGROUND

[0002] As a non-invasive neuromodulation method, repeat transcranial magnetic stimulation (rTMS) technology has been widely used in the field of neuroscience, psychiatry and rehabilitation medicine in recent years. This technology acts on specific areas of the brain through electromagnetic pulses of specific frequency and intensity to regulate the excitability of brain neurons, thereby achieving the purpose of treating various nervous system diseases such as depression, Parkinson's disease, epilepsy, etc.

[0003] With the continuous development of technology, in order to improve the treatment effect and broaden the application range, the operating frequency of rTMS equipment is also continuously improved. When the stimulation frequency is increased from the traditional 20KHZ to 30KHZ, although the electromagnetic induction effect and eddy current loss can be enhanced, thereby possibly improving the treatment efficiency, but at the same time, it also brings significant side effects, and the heating problem of the electromagnetic coil becomes more serious. The heating of the electromagnetic coil is mainly caused by the resistance loss generated when the current passes through and the eddy current loss caused by the change of the magnetic field inside the conductor. With the increase of frequency, these losses also increase, resulting in a sharp rise in coil temperature. High temperature not only affects the performance stability of the electromagnetic coil and shortens its service life, but also may cause potential safety risks to the surrounding tissues and patients.

[0004] At present, for the heat dissipation problem of the electromagnetic coil of the rTMS equipment, the fan blowing heat dissipation mode is generally adopted. The heat dissipation efficiency and area of the fan are limited. Especially under the working conditions of high frequency and high power, the heat generated by the coil often cannot be discharged in time and effectively, resulting in continuous rise of the coil temperature. When the stimulator is continuously used, the temperature of the electromagnetic coil becomes higher and higher, which not only affects the treatment effect, but also may cause overheating damage. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research thereon, and after a lot of creative labor, the utility model is completed.

[0006] Specifically, the technical problem to be solved by the utility model is to provide a repeat transcranial magnetic stimulation instrument to solve the technical problem that when the stimulation frequency is increased from the traditional 20KHZ to 30KHZ, although the electromagnetic induction effect and eddy current loss can be enhanced, thereby possibly improving the treatment efficiency, but at the same time, it also brings significant side effects, and the heating problem of the electromagnetic coil becomes more serious.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] The repetitive transcranial magnetic stimulation instrument includes a machine case with four universal wheels installed at the bottom and an electromagnetic emission assembly, an inner part of the machine case is respectively installed with a transcranial magnetic stimulation instrument host and a cooling liquid tank, and a cable bundle is installed between an output end of the transcranial magnetic stimulation instrument host and an input end of the electromagnetic emission assembly.

[0009] The electromagnetic emission assembly includes a handle, an electromagnetic bin is fixed at an end of the handle away from the cable bundle, a bin cover is detachably installed at an open end of the electromagnetic bin, an electromagnetic coil is arranged in the electromagnetic bin, an aluminum alloy coil is installed in the electromagnetic bin below the electromagnetic coil, input and output ends of the aluminum alloy coil are respectively connected with input and output ends of the cooling liquid, a graphite heat conduction plate is installed between the electromagnetic coil and the aluminum alloy coil, round holes are pre-set at two ends of the electromagnetic coil, and axial flow fans are installed in the round holes.

[0010] As an improved technical solution, the bin cover is provided with heat dissipation openings on both sides, and mesh plates are fixed in the heat dissipation openings.

[0011] As an improved technical solution, the graphite heat conduction plate is fixed with a row of supporting rods at the bottom, and the supporting rods are fixed at the bottom of the inner wall of the electromagnetic bin.

[0012] As an improved technical solution, the electromagnetic coil is provided with an outer layer, the round holes of the electromagnetic coil are provided with inner layers, and the outer layer and the inner layer are both insulating rings.

[0013] As an improved technical solution, the graphite heat conduction plate is fixed with positioning rings at both sides of the end face close to the electromagnetic coil, and the axial flow fans are installed in the inner holes of the positioning rings, the circumferential surface of the positioning ring is provided with a row of limiting protrusions at equal intervals, and the outward end of the limiting protrusion is in contact with the inner layer.

[0014] As an improved technical solution, the inner wall of the electromagnetic bin is fixed with a protrusion close to the bin cover, the protrusion and the bin cover are both provided with threaded holes, and the threaded holes of the protrusion and the bin cover are fixed with bolts.

[0015] As an improved technical solution, the bin cover is installed with positioning pressure rods at the end face close to the electromagnetic coil and directly above the outer layer and the two inner layers.

[0016] As an improved technical scheme, the periphery of the electromagnetic bin is provided with a liquid injection guide bin near the inlet end of the aluminum alloy coil pipe, the liquid injection guide bin is provided with a liquid injection interface pipe at the inlet end, the inside of the cabinet is provided with a liquid pump, the liquid inlet end of the liquid pump is connected with the liquid outlet of the cooling liquid tank, the liquid outlet end of the liquid pump is connected with the liquid inlet end of the liquid injection interface pipe, the periphery of the electromagnetic bin is provided with a backflow guide bin near the outlet end of the aluminum alloy coil pipe, the liquid outlet end of the backflow guide bin is provided with a backflow interface pipe, and the liquid outlet end of the backflow interface pipe is connected with the liquid return port of the cooling liquid tank.

[0017] After the above technical scheme is adopted, the electromagnetic bin has the following beneficial effects:

[0018] 1. The aluminum alloy coil pipe of the electromagnetic bin is in full contact with the bottom of the electromagnetic coil, thereby expanding the heat dissipation area of the aluminum alloy coil pipe, and the aluminum alloy coil pipe is fully heat-exchanged and cooled.

[0019] 2. The shaft flow fan is in a state of starting at the same time when the aluminum alloy coil pipe and the graphite heat conduction plate cool the electromagnetic coil, the shaft flow fan promotes the flow of air in the electromagnetic bin, the heat in the electromagnetic bin is exchanged with the outside through the mesh plate, the heat dissipation effect of the graphite heat conduction plate is further improved, the stability of the graphite heat conduction plate in high-frequency operation is ensured, the heat dissipation efficiency is high, and the safe and stable operation of the equipment is ensured.

[0020] 3. The two limiting protrusions limit the position of the electromagnetic coil, the electromagnetic coil is clamped between the two limiting protrusions and fixed, the electromagnetic coil is conveniently installed and fixed, the positioning pressure rod on the bin cover is pressed on the outer layer and the inner layer after the bin cover is fixed on the convex strip, the electromagnetic coil is pressed between the graphite heat conduction plate and the positioning pressure rod, the electromagnetic coil is clamped in the electromagnetic bin, and the electromagnetic coil is prevented from moving in the electromagnetic bin. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0022] Figure 1 It is the overall structure schematic view of the repetitive transcranial magnetic stimulation instrument.

[0023] Figure 2 It is the structure schematic view of the electromagnetic emission assembly of the repetitive transcranial magnetic stimulation instrument.

[0024] Figure 3 It is the explosion structure schematic view of the inside of the electromagnetic bin of the repetitive transcranial magnetic stimulation instrument.

[0025] Explanation of reference signs:

[0026] 1, case; 11, cable bundle; 2, electromagnetic emission assembly; 21, handle; 22, electromagnetic bin; 23, bin cover; 24, heat dissipation port; 25, mesh plate; 26, convex strip; 27, brace; 28, electromagnetic coil; 29, outer layer; 210, inner layer; 211, limiting convex block; 212, positioning ring; 213, axial flow fan; 214, graphite heat conduction plate; 3, aluminum alloy coil pipe; 31, backflow pipe; 32, injection pipe; 33, liquid injection guide bin; 34, injection interface pipe; 35, backflow guide bin; 36, backflow interface pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0029] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0030] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0031] As Figures 1 to 3 As shown, the present embodiment provides a repetitive transcranial magnetic stimulation instrument, the repetitive transcranial magnetic stimulation instrument comprises a bottom four corner installation universal wheel's machine case 1 and electromagnetic emission assembly 2, the inside of machine case 1 is installed with transcranial magnetic stimulation instrument host computer and cooling liquid tank respectively, transcranial magnetic stimulation instrument host computer is the existing mature technology, therefore does not repeat, the output end of transcranial magnetic stimulation instrument host computer and the input end of electromagnetic emission assembly 2 are installed with cable bundle 11 between them;

[0032] Electromagnetic emission assembly 2 includes handle 21, the end of handle 21 away from cable bundle 11 is fixed with electromagnetic bin 22, the open end of electromagnetic bin 22 is detachably installed with bin cover 23, the inside of electromagnetic bin 22 is provided with electromagnetic coil 28, the inside of electromagnetic bin 22 and below electromagnetic coil 28 are installed with aluminum alloy coil pipe 3, and the input and output ends of aluminum alloy coil pipe 3 are connected with the input and output ends of cooling liquid respectively, graphite heat conduction plate 214 is installed between electromagnetic coil 28 and aluminum alloy coil pipe 3, graphite heat conduction plate 214 is installed between aluminum alloy coil pipe 3 and electromagnetic coil 28, graphite heat conduction plate 214 and the bottom of electromagnetic coil 28 are in all-round contact, graphite heat conduction plate 214 has excellent heat conductivity, can more quickly absorb and cool the heat on electromagnetic coil 28, improve the heat dissipation effect of electromagnetic coil 28, and the heat dissipation of graphite heat conduction plate 214 is carried out by aluminum alloy coil pipe 3, the both ends of electromagnetic coil 28 are provided with round holes, the inside of round hole is installed with axial flow fan 213, axial flow fan 213 is also in the state of starting, axial flow fan 213 promotes the flow of air in electromagnetic bin 22, so that the heat in electromagnetic bin 22 exchanges with the outside through mesh plate 25, further improves the heat dissipation effect of graphite heat conduction plate 214, guarantees the stability of graphite heat conduction plate 214 under high-frequency operation, high heat dissipation efficiency, ensures the safe and stable operation of equipment.

[0033] As Figures 1 to 2 As shown, in the present embodiment, both sides of bin cover 23 are provided with heat dissipation openings 24, and mesh plate 25 is fixed in the inside of heat dissipation opening 24.

[0034] As Figure 3As shown in the drawings, in this embodiment, the bottom of the graphite heat-conducting plate 214 is fixed with a row of struts 27, and the bottom of the strut 27 is fixed on the bottom of the inner wall surface of the electromagnetic bin 22.

[0035] As shown in the drawings, Figure 3 As shown in the drawings, in this embodiment, the outer wall surface of the electromagnetic coil 28 is installed with an outer layer 29, and the circular hole on the electromagnetic coil 28 is installed with an inner layer 210, and the outer layer 29 and the inner layer 210 are both insulating rings.

[0036] As shown in the drawings, Figure 3 As shown in the drawings, in this embodiment, the graphite heat-conducting plate 214 is fixed with a positioning ring 212 on both sides of the end face close to the electromagnetic coil 28, and the axial flow fan 213 is installed in the inner hole of the positioning ring 212, and the peripheral surface of the positioning ring 212 is installed with a ring of limiting protrusions 211 at equal intervals, and the outward side end of the limiting protrusion 211 abuts against the inner layer 210, when the electromagnetic coil 28 is installed, the two limiting protrusions 211 enter the two circular holes on the electromagnetic coil 28 correspondingly, the two limiting protrusions 211 limit the position of the electromagnetic coil 28, so as to fix the electromagnetic coil 28 between the two limiting protrusions 211, facilitating the installation and fixation of the electromagnetic coil 28.

[0037] As shown in the drawings, Figures 2 to 3 As shown in the drawings, in this embodiment, the inner wall surface of the electromagnetic bin 22 is fixed with a protrusion 26 close to one side of the bin cover 23, and the protrusion 26 and the bin cover 23 are both provided with threaded holes, and the protrusion 26 and the threaded holes on the bin cover 23 are fixed with bolts.

[0038] As shown in the drawings, Figures 2 to 3 As shown in the drawings, in this embodiment, the bin cover 23 is installed with a positioning pressing rod above the outer layer 29 and the two inner layers 210 close to the end face of the electromagnetic coil 28, when the bin cover 23 is fixed on the protrusion 26, the positioning pressing rod on the bin cover 23 will be pressed on the outer layer 29 and the inner layer 210, and the electromagnetic coil 28 will be pressed down, so as to press the electromagnetic coil 28 between the positioning pressing rods of the graphite heat-conducting plate 214, and clamp the electromagnetic coil 28 in the inside of the electromagnetic bin 22, so as to prevent the electromagnetic coil 28 from moving in the inside of the electromagnetic bin 22.

[0039] As shown in the drawings, Figures 1 to 3As shown, in the embodiment, the periphery of the electromagnetic bin 22 is provided with a liquid injection guide bin 33 near the inlet end of the aluminum alloy coil pipe 3, the inlet end of the aluminum alloy coil pipe 3 is located inside the liquid injection guide bin 33, the liquid injection guide bin 33 is provided with a liquid injection interface pipe 34 at the inlet end, the inside of the cabinet 1 is provided with a liquid pump, the liquid pump is connected with the outlet of the cooling liquid tank, the liquid pump is provided with a liquid injection pipe 32 between the liquid outlet and the liquid inlet of the liquid injection interface pipe 34, the periphery of the electromagnetic bin 22 is provided with a backflow guide bin 35 near the outlet end of the aluminum alloy coil pipe 3, the outlet end of the backflow guide bin 35 is located inside the backflow guide bin 35, the backflow guide bin 35 is provided with a backflow interface pipe 36 at the liquid outlet, the backflow interface pipe 36 is provided with a backflow pipe 31 between the liquid outlet and the liquid inlet of the cooling liquid tank, the backflow pipe 31, the liquid injection pipe 32 and the cable bundle 11 are bundled together by a strap.

[0040] In use, the electromagnetic emission assembly 2 is placed on the head of a patient, the electromagnetic coil 28 is started by the transcranial magnetic stimulation instrument host to generate a magnetic field to treat the patient, at the same time of treatment, the liquid pump pumps the cooling liquid from the inside of the cooling liquid tank to the inside of the liquid injection guide bin 33 through the liquid injection pipe 32, and finally the cooling liquid flows into the inside of the aluminum alloy coil pipe 3, the cooling liquid discharged from the inside of the aluminum alloy coil pipe 3 is guided into the inside of the backflow pipe 31 through the backflow interface pipe 36, and finally returns to the inside of the cooling liquid tank;

[0041] When the electromagnetic coil 28 generates high temperature, the aluminum alloy coil pipe 3 cools the electromagnetic coil 28, and the aluminum alloy coil pipe 3 is distributed on the bottom of the electromagnetic coil 28 to fully contact the bottom of the electromagnetic coil 28, thereby expanding the heat dissipation area of the aluminum alloy coil pipe 3 and fully exchanging heat with the aluminum alloy coil pipe 3;

[0042] At the same time, the graphite heat conduction plate 214 is installed between the aluminum alloy coil pipe 3 and the electromagnetic coil 28, the graphite heat conduction plate 214 fully contacts the bottom of the electromagnetic coil 28 to improve the heat dissipation effect of the electromagnetic coil 28, and the aluminum alloy coil pipe 3 cools the graphite heat conduction plate 214;

[0043] At the same time of liquid cooling of the electromagnetic coil 28 by the aluminum alloy coil pipe 3 and the graphite heat conduction plate 214, the axial flow fan 213 is also in a state of starting, the axial flow fan 213 promotes the flow of air in the electromagnetic bin 22 to exchange heat between the electromagnetic bin 22 and the outside through the mesh plate 25.

[0044] It should be understood that the use of these embodiments is by way of illustration only and is not intended to limit the scope of the present application. In addition, it should also be understood that, after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A repetitive transcranial magnetic stimulation device, characterized by: The machine case (1) with four corners of the bottom installing universal wheels and electromagnetic emission assembly (2), the inside of the machine case (1) installs transcranial magnetic stimulation instrument host computer and cooling liquid tank respectively, the output of the transcranial magnetic stimulation instrument host computer and the input of the electromagnetic emission assembly (2) install cable bundle (11) between them; The electromagnetic emission assembly (2) includes handle (21), the end of the handle (21) away from the cable bundle (11) is fixed with electromagnetic bin (22), the open end of the electromagnetic bin (22) is detachably installed with bin cover (23), the inside of the electromagnetic bin (22) is provided with electromagnetic coil (28), the inside of the electromagnetic bin (22) and below the electromagnetic coil (28) installs aluminum alloy coil pipe (3), and the input and output ends of the aluminum alloy coil pipe (3) are connected with the input and output ends of the cooling liquid respectively, the graphite heat conduction plate (214) is installed between the electromagnetic coil (28) and the aluminum alloy coil pipe (3), the both ends of the electromagnetic coil (28) are provided with round holes, the inside of the round hole is installed with axial flow fan (213).

2. The repetitive transcranial magnetic stimulation device of claim 1, wherein: The both sides of the bin cover (23) are provided with heat dissipation openings (24), the inside of the heat dissipation openings (24) is fixed with mesh plate (25).

3. The repetitive transcranial magnetic stimulation device of claim 2, wherein: The bottom of the graphite heat conduction plate (214) is fixed with a row of supporting strips (27), and the bottom of the supporting strip (27) is fixed on the bottom of the inner wall of the electromagnetic bin (22).

4. The repetitive transcranial magnetic stimulation device of claim 3, wherein: The outer wall of the electromagnetic coil (28) is installed with outer layer (29), the round hole of the electromagnetic coil (28) is installed with inner layer (210), the outer layer (29) and the inner layer (210) are both insulating rings.

5. The repetitive transcranial magnetic stimulation device of claim 4, wherein: The both sides of the end face of the graphite heat conduction plate (214) close to the electromagnetic coil (28) are fixed with positioning ring (212), and the axial flow fan (213) is installed in the inner hole of the positioning ring (212), a circle of limiting protrusions (211) are installed on the periphery of the positioning ring (212) at equal intervals, and the outward end of the limiting protrusion (211) abuts against the inner layer (210).

6. The repetitive transcranial magnetic stimulation device of claim 5, wherein: The inner wall of the electromagnetic bin (22) and close to one side of the bin cover (23) is fixed with convex strip (26), the convex strip (26) and the bin cover (23) are both provided with threaded holes, and the convex strip (26) and the threaded holes of the bin cover (23) are fixed with bolts.

7. The repetitive transcranial magnetic stimulation device of claim 6, wherein: The end face of the bin cover (23) close to the electromagnetic coil (28) and directly above the outer layer (29) and the two inner layers (210) are installed with positioning pressure rods.

8. The repetitive transcranial magnetic stimulation device of claim 7, wherein: The periphery of the electromagnetic bin (22) is installed with a liquid injection guide bin (33) near the inlet end of the aluminum alloy coil pipe (3), the inlet end of the liquid injection guide bin (33) is installed with a liquid injection interface pipe (34), the inside of the cabinet (1) is installed with a liquid pump, the liquid inlet end of the liquid pump is connected with the liquid outlet of the cooling liquid tank, the liquid outlet end of the liquid pump is installed with a liquid injection pipe (32) between the liquid inlet end of the liquid injection interface pipe (34), the periphery of the electromagnetic bin (22) is installed with a backflow guide bin (35) near the outlet end of the aluminum alloy coil pipe (3), the liquid outlet end of the backflow guide bin (35) is installed with a backflow interface pipe (36), the liquid outlet end of the backflow interface pipe (36) is installed with a backflow pipe (31) between the liquid return of the cooling liquid tank.

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