Magnetic induction intensity detection device

Abstract

The utility model relates to a magnetic induction intensity detection device, which effectively solves the problem that the existing magnetic stimulator equipment is not provided with a portable magnetic induction intensity detection device. Comprising a magnetic stimulation coil racket connected with a magnetic stimulator main body, one side of the magnetic stimulation coil racket is provided with a detection box, the detection box is internally provided with an acquisition plate, and the left and right sides of the detection box are respectively provided with a detection port and an output port which are arranged up and down; the device is ingenious in structure and convenient to use, through the arrangement of the detection box, the acquisition board, the insulation shell, the magnetic induction coil and the like, when transient current passes through the magnetic stimulation coil, a pulsed magnetic field is generated around the magnetic stimulation coil, weak current passes through the magnetic induction coil due to magnetic flux change, and the transient current is generated. And the current is calculated and processed by the acquisition board, stored and transmitted to the display panel externally connected with the output port, so that the structure is simple, the price is low, power supply and communication can be directly realized through a computer USB, and the practicability is very strong.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic stimulation devices, in particular to a magnetic induction intensity detection device. Background Art

[0002] Clinically, as a physical therapy and rehabilitation device for brain function diagnosis and auxiliary treatment of neurological diseases, the transcranial magnetic stimulator has been widely used in major hospitals.

[0003] Chinese Patent with the application number CN202211446932.X discloses a transcranial magnetic stimulator, which includes a frame. An human-computer interaction unit, a main control module, a secondary display, a motor evoked potential instrument, a cooling system, a magnetic stimulation power supply host, and a magnetic stimulation coil paddle are arranged on the frame. The human-computer interaction unit, the secondary display, the motor evoked potential instrument, and the magnetic stimulation power supply host are connected to the main control module. One or more magnetic stimulation power supply hosts are provided, and each magnetic stimulation power supply host is respectively connected to a magnetic stimulation coil paddle, and the magnetic stimulation coil paddle is also connected to the cooling system. The transcranial magnetic stimulator of the present invention has at least one independently operating magnetic stimulation coil paddle, can simultaneously perform magnetic stimulation treatments of different intensities, can adopt various treatment and detection modes, has good flexibility in use, can meet various different needs, and effectively improves the treatment efficiency.

[0004] However, the current magnetic stimulator device does not have a real-time magnetic induction intensity detection device, and a relatively large gaussmeter needs to be used for detection, which not only has poor real-time performance and inconvenient application, but also most hospitals do not have detection equipment. At the same time, it is also necessary to detect the magnetic induction intensity during the production of magnetic stimulators. Each production line needs to be equipped with an expensive gaussmeter or other detection equipment, which not only has high usage costs but also poor real-time performance. Content of the Utility Model

[0005] Aiming at the above problems, the present invention provides a magnetic induction intensity detection device, which has the portable advantage of detecting the magnetic induction intensity of the main body of the magnetic stimulator.

[0006] The technical solution it adopts is that the utility model includes a magnetic stimulation coil paddle connected to the main body of the magnetic stimulator. A detection box is arranged on one side of the magnetic stimulation coil paddle. A collection board is arranged in the detection box. Two detection ports and output ports arranged vertically up and down are respectively arranged on the left and right sides of the detection box. The detection ports and the output ports are both electrically connected to the collection board. The output port is externally connected to a display module. An insulating housing is arranged on the front surface of the magnetic stimulation coil paddle. A magnetic induction coil is arranged in the insulating housing. One end of the magnetic induction coil passing through the insulating housing is connected to one of the detection ports;

[0007] On one side of the insulating housing, an installation assembly is provided. The installation assembly includes a mounting plate coaxial with the insulating housing. On the side of the mounting plate close to the insulating housing, a plurality of circumferentially evenly distributed card slots are provided. A clamping plate is slidably connected in the card slot. The clamping plate is connected to the card slot by a spring. A plurality of the clamping plates are respectively clamped at the outer edge of the insulating housing. A rubber anti-slip strip is provided on the contact surface between the clamping plate and the insulating housing. A plurality of circumferentially evenly distributed positioning plates are fixed at the outer edge of the mounting plate. A clamping strip is slidably connected in the positioning plate. The clamping strip is connected to the positioning plate by a spring. A positioning rod penetrating the clamping strip is arranged along the length direction of the positioning plate. The clamping strip slides on the positioning rod. A plurality of the clamping strips are respectively clamped at the outer edge of the magnetic stimulation coil paddle. A rubber gasket is provided on the contact surface between the clamping strip and the magnetic stimulation coil paddle.

[0008] Preferably, a plurality of moving plates matching the positioning plates are slidably connected to the side of the mounting plate away from the insulating housing. A limiting strip is arranged in the moving plate. The limiting strip is connected to the moving plate by a spring. A plurality of first one-way limiting teeth evenly distributed at equal intervals are fixed on the side of the limiting strip close to the positioning plate. A second one-way limiting tooth is fixed on the side of the clamping strip close to the first one-way limiting tooth. The first one-way limiting tooth and the second one-way limiting tooth are matched.

[0009] A connecting cylinder is coaxially fixed to the side of the mounting plate away from the insulating housing. A conical plate is slidably connected inside the connecting cylinder. The conical plate is connected to the mounting plate by a spring. A plurality of T-shaped blocks matching the moving plates are slidably connected to the connecting cylinder. One end of the T-shaped block located inside the connecting cylinder is arranged in an arc shape. The T-shaped block contacts the moving plate.

[0010] Preferably, the springs in the installation assembly are all made of non-metallic materials.

[0011] Preferably, both the insulating housing and the installation assembly are located on the back surface of the magnetic stimulation coil paddle.

[0012] Preferably, a main control module and a display module are arranged in the magnetic stimulator main body. The acquisition board is respectively electrically connected to the main control module and the display module. The insulating housing is embedded inside the magnetic stimulation coil paddle. The magnetic induction coil is electrically connected to the detection port of the acquisition board.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the settings of a detection box, a collection board, an insulating housing, a magnetic induction coil, etc., when it is necessary to detect the magnetic intensity of a magnetic stimulator, the tester only needs to place the insulating housing on the front of the magnetic stimulation coil paddle. When a transient current passes through the magnetic stimulation coil paddle, a pulsed magnetic field will be generated around it. Due to the change in magnetic flux, a weak current will pass through the magnetic induction coil. After the current is calculated and processed by the collection board, it is stored and transmitted to the display panel connected to the output port, thereby realizing the real-time display of the magnetic induction intensity of the stimulation coil. This method not only has a simple structure and low cost, but also can be directly powered and communicated through the computer USB, with very strong practicability.

[0015] 2. Through the settings of a moving plate, a limiting strip, a connecting cylinder, a conical plate, a T-shaped block, etc., multiple clamping plates slide in the corresponding sliding grooves. It can not only adapt to insulating housings of different sizes, but also the clamping strips can be directly clamped on the outer edge of the magnetic stimulation coil paddle. The operation is simple and fast, and the equipment has strong versatility. At the same time, the tester presses the handle with the palm of the hand and holds the mounting plate with the fingers. The multiple clamping strips are expanded again under the action of the first one-way limiting teeth and the second one-way limiting teeth. At this time, the mounting assembly and the insulating housing can be removed, and the operation is convenient and fast, and can be operated with one hand. Description of the Drawings

[0016] Figure 1 is a perspective view of the present utility model.

[0017] Figure 2 is a schematic diagram of the detection box and the connecting piece in the present utility model.

[0018] Figure 3 is a perspective view of the mounting assembly in the present utility model.

[0019] Figure 4 is a cross-sectional view of the mounting assembly in the present utility model.

[0020] Figure 5 is a schematic diagram of Embodiment 2 in the present utility model.

[0021] Figure 6 is the internal circuit diagram of the collection board in the present utility model.

[0022] Explanation of the reference numerals in the schematic diagram:

[0023] 1. Magnetic stimulation coil paddle; 2. Detection box; 3. Detection port; 4. Output port; 5. Insulating housing; 6. Magnetic induction coil; 7. Mounting plate; 8. Card slot; 9. Clamping plate; 10. Positioning plate; 11. Clamping strip; 12. Positioning rod; 13. Moving plate; 14. Limiting strip; 15. First one-way limiting tooth; 16. Second one-way limiting tooth; 17. Connecting cylinder; 18. Conical plate; 19. T-shaped block. Detailed Embodiment

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1:

[0026] As shown by Figures 1 to 4 , it includes a magnetic stimulation coil paddle 1 connected to the main body of the magnetic stimulator. Both the main body of the magnetic stimulator and the magnetic stimulation coil paddle 1 are prior arts and will not be elaborated here. Considering that there is no portable magnetic induction intensity detection device in the existing magnetic stimulator equipment and a relatively large Gauss meter needs to be used for detection, which not only has poor real-time performance, but also has a large volume and is inconvenient to use. A detection box 2 is provided on one side of the magnetic stimulation coil paddle 1. A collection board is arranged in the detection box 2. A signal conditioning circuit and a signal amplification circuit are arranged on the collection board. The incoming weak current signal is collected, converted, stored and output after being conditioned and amplified. Two detection ports 3 and output ports 4 arranged vertically up and down are respectively provided on the left and right sides of the detection box 2. Both the detection ports 3 and the output ports 4 are electrically connected to the collection board. The output port 4 is externally connected to a display module. In this embodiment, the output port 4 is connected to the display panel on the main body of the magnetic stimulator, and the magnetic induction intensity can be viewed in real time through the display panel. An insulating housing 5 is provided on the front surface of the magnetic stimulation coil paddle 1. The insulating housing 5 is composed of ABS, PC and insulating plastic. A magnetic induction coil 6 is arranged in the insulating housing 5. One end of the magnetic induction coil 6 passing through the insulating housing 5 is connected to one of the detection ports 3. The magnetic induction coil 6 is wound by 5 turns of enameled copper wire with a diameter of 0.25 mm into a coil with a diameter of about 10 mm. Through the settings of the detection box 2, the collection board, the insulating housing 5 and the magnetic induction coil 6, etc., when the magnetic intensity of the magnetic stimulator needs to be detected, the detection personnel only need to place the insulating housing 5 on the front surface of the magnetic stimulation coil paddle 1. When a transient current passes through the magnetic stimulation coil paddle 1, a pulsed magnetic field will be generated around it. Because of the change in magnetic flux, a weak current will pass through the magnetic induction coil 6. After being calculated and processed by the collection board, the current is stored and transmitted to the display panel externally connected to the output port 4, so as to realize the real-time display of the magnetic induction intensity of the stimulation coil. This method is not only simple in structure and low in price, but also can be directly powered and communicated through the computer USB, with very strong practicability;

[0027] To facilitate the disassembly and assembly of the insulating housing 5 and prevent it from falling off when the magnetic induction intensity is present, an installation component is provided on one side of the insulating housing 5. The installation component includes a mounting plate 7 coaxial with the insulating housing 5. On the side of the mounting plate 7 close to the insulating housing 5, a plurality of circumferentially evenly distributed card slots 8 are opened. A clamping plate 9 is slidably connected in the card slot 8. The clamping plate 9 is connected to the card slot 8 by a spring. Limit slots can be opened on both sides of the card slot 8, and limit blocks are provided on both sides of the clamping plate 9. The limit blocks slide in the limit slots to ensure the stability of the clamping plate 9 sliding in the card slot 8. A plurality of the clamping plates 9 are respectively clamped at the outer edge of the insulating housing 5. A rubber anti-slip strip is provided on the contact surface between the clamping plate 9 and the insulating housing 5 to enhance the firmness of the connection between the clamping plate 9 and the insulating housing 5 and prevent it from falling off. A plurality of circumferentially evenly distributed positioning plates 10 are fixed at the outer edge of the mounting plate 7. A clamping strip 11 is slidably connected in the positioning plate 10. The clamping strip 11 is connected to the positioning plate 10 by a spring. A positioning rod 12 penetrating the clamping strip 11 is provided along the length direction of the positioning plate 10. The clamping strip 11 slides on the positioning rod 12. The positioning rod 12 is used to assist the clamping strip 11 in sliding and also limit the spring to prevent the spring from bending. A plurality of the clamping strips 11 are respectively clamped at the outer edge of the magnetic stimulation coil paddle 1. A rubber gasket is provided on the contact surface between the clamping strip 11 and the magnetic stimulation coil paddle 1. Through the settings of the mounting plate 7, the clamping plate 9, the clamping strip 11, the positioning plate 10, the positioning rod 12, etc., a plurality of clamping plates 9 slide in the corresponding sliding grooves, which can not only adapt to insulating housings 5 of different sizes, but also the clamping strips 11 can be directly clamped at the outer edge of the magnetic stimulation coil paddle 1. It is not only simple and fast to operate, has strong equipment versatility, but also will not have the problem of falling off.

[0028] Reference Figure 3 and Figure 4 As shown, considering that when disassembling and assembling the clamping strip 11 and the magnetic stimulation coil paddle 1, it is necessary to operate the clamping strip 11 one by one, which is not suitable for single-handed operation and is rather troublesome. A plurality of moving plates 13 matching the positioning plates 10 are slidably connected to the side of the mounting plate 7 away from the insulating housing 5. In this embodiment, sliding grooves matching the moving plates 13 are provided on the mounting plate 7, and the moving plates 13 slide in the sliding grooves. A limiting strip 14 is provided in the moving plate 13. The limiting strip 14 is connected to the moving plate 13 by a spring. A positioning post penetrating the moving plate 13 is fixed on one side of the limiting strip 14 to assist the limiting strip 14 in moving. A plurality of equidistantly distributed first one-way limiting teeth 15 are fixed on the side of the limiting strip 14 close to the positioning plate 10. A second one-way limiting tooth 16 is fixed on the side of the clamping strip 11 close to the first one-way limiting tooth 15. The first one-way limiting tooth 15 and the second one-way limiting tooth 16 are matched. When the detection personnel respectively clamp the plurality of clamping strips 11 on the magnetic stimulation coil paddle 1, the clamping strip 11 changes from a contracted state to an expanded state. At this time, the first one-way limiting tooth 15 is not limited to the second one-way limiting tooth 16;

[0029] To facilitate the single-handed disassembly of the installation component by the tester, a connecting cylinder 17 is coaxially fixed on the side of the mounting plate 7 away from the insulating housing 5. A tapered plate 18 is slidably connected inside the connecting cylinder 17. The tapered plate 18 is connected to the mounting plate 7 by a spring. A handle is coaxially fixed on the side of the tapered plate 18 away from the connecting cylinder 17. A plurality of T-shaped blocks 19 matching the moving plate 13 are slidably connected to the connecting cylinder 17. The end of the T-shaped block 19 located inside the connecting cylinder 17 is arranged in an arc shape. The T-shaped block 19 contacts the moving plate 13. Through the settings of the moving plate 13, the limiting strip 14, the connecting cylinder 17, the tapered plate 18, and the T-shaped block 19, etc., the tester presses the handle with the palm of the hand and holds the mounting plate 7 with the fingers. The tapered plate 18 approaches the mounting plate 7. After being squeezed, the T-shaped block 19 pushes the moving plate 13 to move. The plurality of card strips 11 are respectively expanded again under the action of the first one-way limiting tooth 15 and the second one-way limiting tooth 16. At this time, the installation component and the insulating housing 5 can be removed. The operation is convenient and fast, and can be operated with one hand.

[0030] Embodiment 2:

[0031] Reference Figure 5 As shown in the figure, to facilitate magnetic stimulation treatment on one side of the magnetic stimulation coil paddle 1 and magnetic induction intensity detection on the other side, both the insulating housing 5 and the installation component are located on the back of the magnetic stimulation coil paddle 1.

[0032] Embodiment 3:

[0033] To further improve the real-time performance and operability of the magnetic induction intensity, the acquisition board can be integrated into the magnetic stimulation main body. A main control module and a display module are provided inside the magnetic stimulation instrument main body. This is prior art and is common on common magnetic stimulation instrument main bodies, so it will not be elaborated too much here. The acquisition board is electrically connected to the main control module and the display module respectively. The insulating housing 5 is embedded inside the magnetic stimulation coil paddle 1. The magnetic induction coil 6 is electrically connected to the detection port 3 of the acquisition board.

[0034] Reference Figure 6 As shown in the figure, after the magnetic induction coil 6 is connected to the detection port 3 of the acquisition board, it is filtered and limited by R20 and R26, and then connected to the differential input pins 3 and 2 of the integrated circuit u5 respectively. Sampling resistors are connected in parallel between pin 3 and pin 2 of u5. The induced current on the magnetic induction coil 6 forms a voltage between pin 3 and pin 2 of u5. After being adjusted by the u5 circuit into a single voltage signal, the single voltage signal is amplified by U9 and the voltage is adjusted to the input voltage suitable for the analog-to-digital conversion chip U22, and then output to U22 to be converted into a digital signal. The microprocessor U1 obtains the magnetic induction intensity through calculation and processing, and stores the magnetic induction intensity or sends it to the display module on the magnetic stimulation instrument main body through the communication serial port UART1.

[0035] When the utility model is in use:

[0036] First, a plurality of clamping plates 9 are respectively clamped with the insulating housing 5;

[0037] Then, a plurality of clamping strips 11 are respectively installed at the outer edge of the magnetic stimulation coil paddle 1;

[0038] Secondly, during detection, when a transient current passes through the magnetic stimulation coil paddle 1, a pulsed magnetic field will be generated around it. Because of the change in magnetic flux, a weak current will pass through the magnetic induction coil 6. After the current is calculated and processed by the acquisition board, it is stored and transmitted to the display panel externally connected to the output port 4, so as to realize the real-time display of the magnetic induction intensity of the stimulation coil.

[0039] Finally, when removing the installation component and the insulating housing 5, the tester presses the handle with the palm of the hand and holds the installation plate 7 with the fingers. The conical plate 18 approaches the installation plate 7. After the T-shaped block 19 is squeezed, it pushes the moving plate 13 to move. The plurality of clamping strips 11 are respectively expanded again under the action of the first one-way limiting teeth 15 and the second one-way limiting teeth 16. At this time, the installation component and the insulating housing 5 can be taken off.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic induction intensity detection device, comprising a magnetic stimulation coil flap (1) connected to the main body of a magnetic stimulator, characterized in that: On one side of the magnetic stimulation coil paddle (1), a detection box (2) is provided. Inside the detection box (2), a collection board is arranged. On the left and right sides of the detection box (2), two detection ports (3) and output ports (4) arranged vertically are respectively provided. Both the detection ports (3) and the output ports (4) are electrically connected to the collection board. The output port (4) is externally connected to a display module. On the front of the magnetic stimulation coil paddle (1), an insulating housing (5) is provided. Inside the insulating housing (5), a magnetic induction coil (6) is arranged. One end of the magnetic induction coil (6) passing through the insulating housing (5) is connected to one of the detection ports (3). On one side of the insulating housing (5), an installation component is provided. The installation component includes an installation plate (7) coaxial with the insulating housing (5). On the side of the installation plate (7) close to the insulating housing (5), a plurality of card slots (8) evenly distributed in a circumferential direction are opened. A clamping plate (9) is slidably connected in the card slot (8). The clamping plate (9) and the card slot (8) are connected by a spring. The plurality of clamping plates (9) are respectively clamped at the outer edge of the insulating housing (5). A rubber anti-slip strip is arranged on the contact surface between the clamping plate (9) and the insulating housing (5). On the outer edge of the installation plate (7), a plurality of positioning plates (10) evenly distributed in a circumferential direction are fixed. A clamping strip (11) is slidably connected in the positioning plate (10). The clamping strip (11) and the positioning plate (10) are connected by a spring. A positioning rod (12) penetrating the clamping strip (11) is arranged along the length direction of the positioning plate (10). The clamping strip (11) slides on the positioning rod (12). The plurality of clamping strips (11) are respectively clamped at the outer edge of the magnetic stimulation coil paddle (1). A rubber gasket is arranged on the contact surface between the clamping strip (11) and the magnetic stimulation coil paddle (1).

2. The magnetic induction intensity detection device according to claim 1, characterized in that: On the side of the installation plate (7) away from the insulating housing (5), a plurality of moving plates (13) matching the positioning plates (10) are slidably connected. A limiting strip (14) is arranged inside the moving plate (13). The limiting strip (14) and the moving plate (13) are connected by a spring. On the side of the limiting strip (14) close to the positioning plate (10), a plurality of first one-way limiting teeth (15) evenly distributed at equal intervals are fixed. On the side of the clamping strip (11) close to the first one-way limiting teeth (15), a second one-way limiting teeth (16) is fixed. The first one-way limiting teeth (15) and the second one-way limiting teeth (16) are matched with each other. On the side of the installation plate (7) away from the insulating housing (5), a connecting cylinder (17) is coaxially fixed. A conical plate (18) is slidably connected inside the connecting cylinder (17). The conical plate (18) and the installation plate (7) are connected by a spring. A plurality of T-shaped blocks (19) matching the moving plates (13) are slidably connected to the connecting cylinder (17). The end of the T-shaped block (19) located inside the connecting cylinder (17) is arranged with an arc surface. The T-shaped block (19) contacts the moving plate (13).

3. The magnetic induction intensity detection device according to claim 2, characterized in that: The springs inside the installation component are all made of non-metallic materials.

4. The magnetic induction intensity detection device according to claim 3, characterized in that: Both the insulating housing (5) and the installation component are located on the back of the magnetic stimulation coil paddle (1).

5. A magnetic induction intensity detection device according to claim 4, characterized in that: A main control module and a display module are provided inside the magnetic stimulator main body. The acquisition board is electrically connected to the main control module and the display module respectively. The insulating housing (5) is embedded inside the magnetic stimulation coil paddle (1), and the magnetic induction coil (6) is electrically connected to the detection port (3) of the acquisition board.

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