Coil for transcranial magnetic stimulation and fixing device thereof

Abstract

The utility model discloses a coil for transcranial magnetic stimulation and a fixing device of the coil. The coil comprises a support and the fixing device. A stimulation host is arranged at the upper end of the support, and the input end of the stimulation host is electrically connected to an external power supply; the fixing device comprises an elastic clamping ring, a first rotating plate, a second rotating plate and a supporting plate, the supporting plate is arranged at the left end of the support, the front end of the supporting plate is rotationally connected with the second rotating plate through a first rotating shaft, the lower end of the second rotating plate is rotationally connected with the first rotating plate through a second rotating shaft, and the upper end of the first rotating plate is rotationally connected with the elastic clamping ring through the first rotating shaft. According to the fixing device for the transcranial magnetic stimulation coil, the position of the transcranial magnetic stimulation coil is automatically and temporarily limited, the position of the transcranial magnetic stimulation coil is conveniently adjusted, the position of the transcranial magnetic stimulation coil can be fixed only by pressing the limiting component, the transcranial magnetic stimulation coil can be fixed more simply, conveniently and rapidly, and the fixing efficiency is improved. And clinical use of the transcranial magnetic stimulator is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of transcranial magnetic stimulation coils, in particular to a coil used for transcranial magnetic stimulation and a fixing device thereof. Background Art

[0002] Transcranial magnetic stimulation therapy is a magnetic stimulation technology that uses a time-varying pulsed magnetic field to act on the central nervous system, change the membrane potential of cortical nerve cells, generate induced currents, affect brain metabolism and neural electrical activity, and thus cause a series of physiological and biochemical reactions. Transcranial magnetic stimulation therapy is a non-invasive operation, the discomfort of the treated person is very small, and it has a wide range of applications. It is currently most commonly used in the clinic for the rehabilitation of central nervous system injury diseases such as cerebral infarction, cerebral hemorrhage and their sequelae. The transcranial magnetic stimulation treatment equipment mainly includes two parts: the stimulation host and the stimulation coil. Among them, the magnetic field stimulation coil is the key component of the transcranial magnetic stimulation treatment equipment. The intensity, depth of action, range of stimulation, and focusing characteristics of the magnetic stimulation are all closely related to the stimulation coil. In the prior art, since the transcranial magnetic stimulation treatment time is long, in order to avoid the fatigue caused by the operator holding the stimulation coil for a long time, it is often necessary to use a fixing frame to fix the position of the stimulation coil. At the same time, the frame plates of the fixing frame can also be relatively rotated to ensure that the stimulation coil can be moved arbitrarily, but when limiting the position of the stimulation coil, it is necessary to rotate the locking bolt of the fixing frame multiple times, and the fixing process is relatively cumbersome. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a coil for transcranial magnetic stimulation and a fixing device thereof. The position of the transcranial magnetic stimulation coil can be fixed by simply pressing a limiting component, making the fixation of the transcranial magnetic stimulation coil simpler and faster, facilitating the clinical use of the transcranial magnetic stimulator, and effectively solving the problems in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A coil for transcranial magnetic stimulation comprises a coil shell, a fixed rubber pad is arranged inside the coil shell, a stimulation coil is arranged inside the fixed rubber pad, a connecting wire is arranged at the lower end of the fixed tube, and an input end of the stimulation coil is electrically connected to an output end of a stimulation host through the connecting wire.

[0006] The utility model also provides a fixing device for fixing a coil of transcranial magnetic stimulation, comprising a bracket and a fixing device;

[0007] The bracket has a stimulating main unit at its upper end, and the input end of the stimulating main unit is electrically connected to an external power source;

[0008] The fixing device comprises an elastic clamp, a rotating plate 1, a rotating plate 2 and a support plate, wherein the support plate is arranged at the left end of the bracket, the front end of the support plate is rotatably connected to the rotating plate 2 via a rotating shaft 1, the lower end of the rotating plate 2 is rotatably connected to the rotating plate 1 via a rotating shaft 2, the upper end of the rotating plate 1 is rotatably connected to the elastic clamp, the interior of the elastic clamp is clamped with a fixing tube, the upper end of the fixing tube is provided with a coil housing, which automatically and temporarily limits the position of the transcranial magnetic stimulation coil, and facilitates the adjustment of the position of the transcranial magnetic stimulation coil. The position of the transcranial magnetic stimulation coil can be fixed by pressing the limiting component, which makes the fixation of the transcranial magnetic stimulation coil simpler and quicker, and facilitates the clinical use of the transcranial magnetic stimulator.

[0009] Furthermore, the fixing device also includes a limit assembly, which includes a slide groove, a slide column and a spring. The slide grooves are respectively arranged inside the rotating shaft one, the rotating shaft two and the rotating shaft three. The interior of the slide grooves is longitudinally slidably connected with a slide column. A spring is provided between the limit plate at the front end of the slide column and the rear inner wall of the slide groove. The spring is movably mounted on the outer arc surface of the slide column to limit the position of the stimulation coil.

[0010] Furthermore, the limiting assembly also includes a conical rubber sleeve and a circular ring. The conical rubber sleeve is respectively arranged at the rear end of the outer arc surface of the sliding column, and the circular ring is respectively arranged at the upper end of the rear side surface of the rotating plate one and the upper and lower ends of the rear side of the rotating plate two. The circular ring and the conical rubber sleeve are installed in coordination to increase the limiting force of the stimulation coil.

[0011] Furthermore, the limiting assembly also includes convex plates, which are respectively arranged on the inner arc surface of the circular ring, thereby greatly increasing the force required for moving the stimulation coil position.

[0012] Furthermore, the limit assembly also includes pull rings, which are respectively arranged at the rear ends of the sliding columns to facilitate the backward movement of the sliding columns.

[0013] Furthermore, universal wheels are provided at the lower ends of the brackets to facilitate the movement of the brackets.

[0014] Furthermore, a push handle is provided at the rear end of the bracket to facilitate applying thrust to the bracket.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the fixing device for the coil for transcranial magnetic stimulation has the following advantages:

[0016] When performing transcranial magnetic stimulation treatment on a patient, the elastic clasp, rotating plate one and rotating plate two are rotated respectively to move the stimulation coil to a specified position. When the elastic clasp, rotating plate one and rotating plate two stop rotating, the conical rubber sleeve is brought into contact with the left end of the circular ring under the elastic force of the spring, thereby increasing the force required for the rotation of the elastic clasp, rotating plate one and rotating plate two, and facilitating temporary fixation of the stimulation coil position. After the movement is completed, the sliding column is pressed to fully insert the conical rubber sleeve into the circular ring. Under the top pressure of the convex plate, the conical rubber sleeve is deformed, so that the elastic clasp, rotating plate one and rotating plate two are in contact with each other. The force required for the rotation of plate 2 is greatly increased, and it will not move easily. Then, the stimulation host is started, and the high-voltage energy storage capacitor inside the stimulation host is charged and discharged to the stimulation coil, so that the stimulation coil generates a time-varying magnetic field, and transcranial magnetic stimulation treatment is performed on the patient. The position of the transcranial magnetic stimulation coil is automatically temporarily restricted, which facilitates the adjustment of the position of the transcranial magnetic stimulation coil. The position of the transcranial magnetic stimulation coil can be fixed by pressing the limit component, which makes the fixation of the transcranial magnetic stimulation coil simpler and faster, and facilitates the clinical use of the transcranial magnetic stimulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the rear side of the overall device of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0020] Figure 4 It is a schematic diagram of the structure of the side section of the limit assembly of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure inside the coil housing of the utility model.

[0022] In the figure: 1 bracket, 2 push handle, 3 universal wheel, 4 stimulation host, 5 connecting line, 6 coil housing, 7 fixing device, 71 elastic clamp, 72 rotating plate 1, 73 rotating plate 2, 74 support plate, 75 limit assembly, 751 slide groove, 752 slide column, 753 conical rubber sleeve, 754 ring, 755 convex plate, 756 spring, 757 pull ring, 8 fixing tube, 9 fixing rubber pad, 10 stimulation coil. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 , this embodiment provides the following technical solutions:

[0025] A coil for transcranial magnetic stimulation includes a coil shell 6, a fixed rubber pad 9 is provided inside the coil shell 6, a stimulation coil 10 is provided inside the fixed rubber pad 9, a connecting wire 5 is provided at the lower end of a fixed tube 8, an input end of the stimulation coil 10 is electrically connected to an output end of a stimulation host 4 via the connecting wire 5, the fixed tube 8 facilitates the connection between the coil and the bracket, and the fixed rubber pad 9 and the coil shell 6 provide space for the installation of the coil.

[0026] A fixing device for fixing a coil for transcranial magnetic stimulation, comprising a bracket 1 and a fixing device 7;

[0027] Bracket 1: A stimulation host 4 is provided at its upper end, and the input end of the stimulation host 4 is electrically connected to an external power supply. The stimulation host 4 is mainly composed of a charging circuit, an energy storage capacitor, a pulse controller, and a thyristor switch. The high-voltage energy storage capacitor is charged and then discharged to the coil, thereby generating a time-varying magnetic field. Universal wheels 3 are provided at the lower end of the bracket 1 to facilitate the movement of the position of the entire device. A push handle 2 is provided at the rear end of the bracket 1 to facilitate the application of thrust to the bracket 1;

[0028] The fixing device 7 includes an elastic snap ring 71, a rotating plate 1 72, a rotating plate 2 73 and a support plate 74. The support plate 74 is arranged at the left end of the bracket 1. The front end of the support plate 74 is rotatably connected to the rotating plate 2 73 through a rotating shaft 1. The lower end of the rotating plate 2 73 is rotatably connected to the rotating plate 1 72 through a rotating shaft 2. The upper end of the rotating plate 1 72 is rotatably connected to the elastic snap ring 71 through a rotating shaft 1. The interior of the elastic snap ring 71 is clamped with a fixing tube 8. The upper end of the fixing tube 8 is provided with a coil housing 6. The upper end of the rotating plate 2 73 and the support plate 74 rotate relative to each other, the lower end of the rotating plate 2 73 rotates relative to the lower end of the rotating plate 1 72, and the upper end of the rotating plate 1 72 and the elastic snap ring 71 rotate relative to each other. Rotate to adjust the position of the stimulation coil 10, move the stimulation coil 10 to the working position, charge the high-voltage energy storage capacitor inside the stimulation host 4 and then discharge it to the stimulation coil 10, so that the stimulation coil 10 generates a time-varying magnetic field, and performs transcranial magnetic stimulation treatment on the patient. The fixing device 7 also includes a limit component 75, and the limit component 75 includes a slide groove 751, a slide column 752 and a spring 756. The slide grooves 751 are respectively arranged inside the rotating shaft 1, the rotating shaft 2 and the rotating shaft 3, and the slide column 752 is longitudinally slidably connected inside the slide grooves 751 to ensure the synchronous rotation of the slide column 752, the rotating shaft 1, the rotating shaft 2 and the rotating shaft 3. The front end of the slide column 752 The spring 756 is arranged between the limit plate and the rear inner wall of the slide groove 751. The spring 756 is movably sleeved on the outer arc surface of the slide column 752. The limit assembly 75 also includes a conical rubber sleeve 753 and a ring 754. The conical rubber sleeve 753 is respectively arranged on the rear end of the outer arc surface of the slide column 752, and the ring 754 is respectively arranged on the upper end of the rear side surface of the rotating plate 1 72 and the upper and lower ends of the rear side of the rotating plate 2 73. The ring 754 is installed in cooperation with the conical rubber sleeve 753. When the elastic snap ring 71, the rotating plate 1 72 and the rotating plate 2 73 stop rotating, the elastic force of the spring 756 makes the left end of the conical rubber sleeve 753 contact with the ring 754 to increase the elasticity. The force required for the rotation of the retaining ring 71, the rotating plate 1 72 and the rotating plate 2 73 facilitates the temporary fixation of the position of the stimulation coil 10. The limiting assembly 75 also includes convex plates 755, which are respectively arranged on the inner arc surface of the circular ring 754. When the conical rubber sleeve 753 is fully inserted into the interior of the circular ring 754, the conical rubber sleeve 753 is deformed under the top pressure of the convex plates 755, so that the force required for the rotation of the elastic retaining ring 71, the rotating plate 1 72 and the rotating plate 2 73 is greatly increased, and they will not move easily. The limiting assembly 75 also includes pull rings 757, which are respectively arranged at the rear ends of the sliding columns 752 to facilitate pulling the sliding columns 752 backwards.

[0029] The working principle of a coil for transcranial magnetic stimulation and its fixing device provided by the utility model is as follows: when a patient is subjected to transcranial magnetic stimulation treatment, the stimulation coil 10 is moved to a specified position. During the movement, the upper end of the second rotating plate 73 and the support plate 74 rotate relative to each other, the lower end of the second rotating plate 73 rotates relative to the lower end of the first rotating plate 72, and the upper end of the first rotating plate 72 and the elastic clamping ring 71 rotate relative to each other. When the elastic clamping ring 71, the first rotating plate 72 and the second rotating plate 73 stop rotating, the elastic force of the spring 756 causes the conical rubber sleeve 753 to contact the left end of the circular ring 754, thereby increasing the elastic clamping ring 71, the first rotating plate 72 and the rotating plate 73. The force required for the rotation of plate 2 73 is convenient for temporarily fixing the position of the stimulation coil 10. After the movement is completed, press the slide post 752 to move the slide post 752 forward, and the conical rubber sleeve 753 is completely inserted into the inside of the ring 754. Under the top pressure of the convex plate 755, the conical rubber sleeve 753 is deformed, so that the force required for the rotation of the elastic clamp 71, the rotating plate 1 72 and the rotating plate 2 73 is greatly increased, and it will not move easily. Then start the stimulation host 4, and discharge the high-voltage energy storage capacitor inside the stimulation host 4 to the stimulation coil 10 after charging, so that the stimulation coil 10 generates a time-varying magnetic field, and the patient is treated with transcranial magnetic stimulation.

[0030] It is worth noting that the stimulation host 4 disclosed in the above embodiments can be freely configured according to the actual application scenario, and it is recommended to use the NTK-TMS-200 model transcranial magnetic stimulator host.

[0031] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A coil for transcranial magnetic stimulation, characterized in that: The invention comprises a coil housing (6), wherein a fixing rubber pad (9) is arranged inside the coil housing (6), a stimulation coil (10) is arranged inside the fixing rubber pad (9), a connecting wire (5) is arranged at the lower end of the fixing tube (8), and an input end of the stimulation coil (10) is electrically connected to an output end of a stimulation host (4) via the connecting wire (5).

2. A fixing device for fixing a coil for transcranial magnetic stimulation according to claim 1, characterized in that: It comprises a bracket (1) and a fixing device (7); The bracket (1) has a stimulation host (4) at its upper end, and the input end of the stimulation host (4) is electrically connected to an external power source; The fixing device (7) comprises an elastic snap ring (71), a rotating plate 1 (72), a rotating plate 2 (73) and a support plate (74), wherein the support plate (74) is arranged at the left end of the bracket (1), the front end of the support plate (74) is rotatably connected to the rotating plate 2 (73) via a rotating shaft 1, the lower end of the rotating plate 2 (73) is rotatably connected to the rotating plate 1 (72) via a rotating shaft 2, the upper end of the rotating plate 1 (72) is rotatably connected to the elastic snap ring (71) via a rotating shaft 1, the interior of the elastic snap ring (71) is clamped with a fixing tube (8), and the upper end of the fixing tube (8) is provided with a coil housing (6).

3. A fixing device for fixing a coil for transcranial magnetic stimulation according to claim 2, characterized in that: The fixing device (7) further comprises a limiting assembly (75), wherein the limiting assembly (75) comprises a slide groove (751), a slide column (752) and a spring (756), wherein the slide groove (751) is respectively arranged inside the rotating shaft 1, the rotating shaft 2 and the rotating shaft 3, wherein the interior of the slide groove (751) is longitudinally slidably connected with the slide column (752), and a spring (756) is arranged between a limiting plate at the front end of the slide column (752) and a rear inner wall of the slide groove (751), and the spring (756) is movably sleeved on the outer arc surface of the slide column (752).

4. A fixing device for fixing a coil for transcranial magnetic stimulation according to claim 3, characterized in that: The limiting assembly (75) further comprises a conical rubber sleeve (753) and a circular ring (754), wherein the conical rubber sleeve (753) is respectively arranged at the rear end of the outer arc surface of the sliding column (752), and the circular ring (754) is respectively arranged at the upper end of the rear side surface of the rotating plate 1 (72) and the upper and lower ends of the rear side of the rotating plate 2 (73), and the circular ring (754) and the conical rubber sleeve (753) are installed in coordination.

5. The fixing device for fixing a coil for transcranial magnetic stimulation according to claim 4, characterized in that: The limiting assembly (75) further comprises convex plates (755), and the convex plates (755) are respectively arranged on the inner arc surface of the circular ring (754).

6. The fixing device for fixing a coil for transcranial magnetic stimulation according to claim 3, characterized in that: The limiting assembly (75) further comprises a pull ring (757), and the pull ring (757) is respectively arranged at the rear end of the sliding column (752).

7. The fixing device for fixing a coil for transcranial magnetic stimulation according to claim 2, characterized in that: Universal wheels (3) are respectively provided at the lower ends of the brackets (1).

8. The fixing device for fixing a coil for transcranial magnetic stimulation according to claim 2, characterized in that: A push handle (2) is provided at the rear end of the bracket (1).

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