Craniocerebral striking device

Abstract

The utility model discloses a craniocerebral striking device which comprises a machine base, a displayer is installed at the upper end of the machine base, a supporting frame is fixedly installed at the bottom of the displayer, an electromagnet is installed in the supporting frame, and the lower end of the electromagnet extends out. A rotating disc is rotatably installed on the supporting frame, a sliding groove is formed in the rotating disc, a firing pin is inserted into the sliding groove, the upper end of the firing pin is made of a magnet material, sliding blocks arranged in the sliding groove in a sliding mode are fixedly installed on the two sides of the firing pin, springs are fixedly connected to the sliding blocks, the lower ends of the springs are fixedly connected into the sliding groove, and a laser range finder is fixedly installed on the outer side of the rotating disc. And the laser range finder is in a stable state in positioning and range finding work, so that the measurement accuracy can be improved. In the striking process, the angle of the rotary disc and the angle of the striker are fixed through the plug pin, it is guaranteed that the striker does not deflect or rotate in the striking process, and the striking accuracy is improved. According to the design, the laser emission of the laser range finder and the firing pin release are at the same position, and the accuracy of a striking drop point is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to animal experiment equipment related technical field, concretely is a brain strike device. BACKGROUND

[0002] With the development of modern industry, power machinery and high-speed traffic, the incidence of craniocerebral and spinal cord injury is increasing. Globally, craniocerebral and spinal cord injury is one of the main causes of death and disability, and has been a difficult point of basic research for a long time. In order to reduce neuronal damage and improve functional prognosis, it is necessary to fully understand the pathological mechanism of neuronal survival and death after injury. In current animal experiments, craniocerebral and spinal cord injury strike devices are commonly used to establish rodent craniocerebral and spinal cord injury models to understand and study the pathological mechanism of craniocerebral and spinal cord injury.

[0003] At present, the craniocerebral and spinal cord injury strike device sold on the market can quickly strike the exposed craniocerebral or spinal cord of the experimental animal by the sharp striking head to achieve quantitative striking, so as to repeatedly achieve brain injury and spinal cord injury of different degrees and meet the experimental requirements.

[0004] However, due to the inability to accurately position the striking head, the striking head cannot accurately hit the animal's craniocerebral, and due to the inaccuracy of the striking head position, the extent and range of injury to the experimental animal's craniocerebral will be difficult to control, thereby leading to the inaccuracy and unreliability of experimental data. This will affect the scientificity and effectiveness of the experimental results, making it difficult for researchers to draw accurate conclusions. Therefore, we propose a brain strike device. UTILITY MODEL CONTENT

[0005] To solve the defects in the prior art, the utility model provides a brain strike device.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model discloses a brain strike device, which comprises a base, a display is installed on the upper end of the base, a support frame is fixedly installed at the bottom of the display, an electromagnet is installed in the support frame, and the lower end of the electromagnet extends out.

[0008] The support frame is provided with a rotating disc rotatably installed thereon, a sliding slot is formed in the rotating disc, a striker is inserted into the sliding slot, the upper end of the striker is made of magnet material, sliding blocks are fixedly installed on the two sides of the striker and slidably arranged in the sliding slot, springs are fixedly connected to the sliding blocks, the lower end of the spring is fixedly connected to the sliding slot, a laser range finder is fixedly installed on the outer side of the rotating disc, the angle between the laser range finder and the lower end of the striker is 90 degrees, a jack is formed in the support frame, two through holes are formed in the rotating disc, the angle between the two through holes is 90 degrees, a bolt is arranged on the outer side of the rotating disc, the bolt can pass through the through hole and be inserted into the jack, the upper end of the machine base is provided with a carrier plate, the machine base is provided with a mounting mechanism, the mounting mechanism is connected with the carrier plate, and the carrier plate is mounted on the machine base through the mounting mechanism.

[0009] As a preferred technical scheme of the utility model, the carrier plate top is fixedly connected with multiple equidistant distribution bandages, the bandage end is all fixedly connected with plug block, the plug block all is opened with limit hole, the carrier plate is opened with multiple socket, the plug block can insert into socket, the carrier plate one side is equipped with multiple limit rod, the limit rod can pass into carrier plate and insert into limit hole.

[0010] As a preferred technical scheme of the utility model, the bandage is all the bandage with elasticity.

[0011] As a preferred technical scheme of the utility model, the mounting mechanism includes two interval arrangement support blocks, the support block is fixedly connected on the machine base, rotatably mounted between the two support blocks has the pivot, the pivot is fixedly installed with the connecting block, the connecting block is fixedly connected with the carrier plate bottom, one end of the pivot is fixedly installed with the friction wheel, the machine base upper end is equipped with the friction strip, the friction strip is in contact with the friction wheel and both can be driven through friction, the friction strip both ends are equipped with the second electric push rod of symmetrical distribution, the second electric push rod is fixedly installed on the machine base and the output is fixedly connected with the friction strip.

[0012] As a preferred technical scheme of the utility model, the carrier plate is provided with two groups of limit mechanism of symmetrical distribution, the limit mechanism includes support sheet, the support sheet is fixedly connected on the carrier plate, the support sheet one side is equipped with the limit sheet, the limit sheet both ends are all fixedly connected with round rod, the round rod all penetrates the support sheet, the limit sheet with support sheet between fixedly connected with two symmetrical distribution elastic piece.

[0013] The utility model discloses the beneficial effect is:

[0014] The brain hitting device, the laser range finder is in a stable state in positioning and ranging work, and the measurement accuracy can be improved. During the hitting process, the rotating disc and the angle of the striker are fixed through the bolt, so that the striker does not deviate or rotate during the hitting process, and the hitting accuracy is improved. The design realizes the laser emission of the laser range finder and the release of the striker at the same position, and ensures the accuracy of the hitting drop point.

[0015] The mouse is fixed on the mouse by the plurality of binding belts, the plug is inserted into the socket, and the limiting rod is inserted into the limiting hole, so that the plug is fixed, and the binding belt is fixed. The mouse is fixed on the mouse by the binding belt, so that the mouse remains stable during the experiment. The mouse head is located between the two limiting pieces, and the limiting piece is pressed on the head by the elastic member, so that the mouse head is fixed, and the mouse head is also in a stable state during the experiment.

[0016] The friction strip is moved by the second electric push rod, the output directions of the second electric push rods on both sides are opposite, the friction strip can be moved to one side, the friction strip drives the friction wheel to rotate, the friction wheel and the rotating shaft rotate synchronously, the carrier plate can rotate around the rotating shaft, and the mouse on the carrier plate can be inclined to one side. The mouse head can be inclined during the experiment, and the different positions of the mouse head can be hit. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0018] Figure 1 is a structural schematic view of the brain hitting device of the present application;

[0019] Figure 2 is a partial structure enlarged sectional view of the support frame of the brain hitting device of the present application;

[0020] Figure 3 is a partial structure enlarged schematic view of the rotating disc of the brain hitting device of the present application;

[0021] Figure 4 is a partial structure enlarged sectional view of the rotating disc of the brain hitting device of the present application;

[0022] Figure 5 is a partial structure enlarged schematic view of the carrier plate of the brain hitting device of the present application;

[0023] Figure 6 is a partial structure enlarged schematic view of the rotating shaft of the brain hitting device of the present application.

[0024] In the figure: base 1, display 2, support frame 3, electromagnet 4, rotating disc 5, sliding slot 6, striker 7, sliding block 8, spring 9, laser range finder 10, carrier plate 11, binding belt 12, plug 13, limiting hole 14, socket 15, limiting rod 16, support block 17, rotating shaft 18, connecting block 19, friction wheel 20, friction strip 21, second electric push rod 22, support piece 23, limiting piece 24, round rod 25, elastic member 26, insertion hole 27, perforation 28, bolt 29. DETAILED DESCRIPTION

[0025] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0026] Embodiment: as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the utility model discloses a brain strike device, including base 1, the upper end of base 1 is installed with display 2, the bottom of display 2 is fixedly installed with support frame 3, electromagnet 4 is installed in support frame 3, and electromagnet 4 lower end stretches out. Rotating disc 5 is rotatably installed on support frame 3, and sliding slot 6 is formed in rotating disc 5, striker 7 is inserted in sliding slot 6, the upper end of striker 7 is the magnet material, and the sliding block 8 that is slidably arranged in sliding slot 6 is fixedly installed on the both sides of striker 7, spring 9 is fixedly connected on sliding block 8, and the lower end of spring 9 is fixedly connected in sliding slot 6, laser range finder 10 is fixedly installed on the outside of rotating disc 5, the included angle between laser range finder 10 and the lower end of striker 7 is ninety degrees with the center of the circle of rotating disc 5 as the center, the plug-in hole 27 is formed in support frame 3, two perforations 28 are formed in rotating disc 5, the included angle between two perforations 28 is ninety degrees with the center of the circle of rotating disc 5 as the center, and the bolt 29 is arranged on the outside of rotating disc 5, and the bolt 29 can pass through perforation 28 and be inserted into plug-in hole 27;The upper end of base 1 is equipped with carrier plate 11, and the installation mechanism is arranged on base 1, the installation mechanism is connected with carrier plate 11, and carrier plate 11 is installed on base 1 through the installation mechanism.

[0027] Place the mouse on carrier plate 11, first rotate rotating disc 5, make laser range finder 10 vertically downward, measure the position of the head of the mouse, position and range finding work, and display the measurement data through display 2. When positioning and ranging, the bolt 29 passes through one of the perforations 28 and is inserted into the plug-in hole 27, the rotating disc 5 can be fixed, and then the laser range finder 10 is kept in a stable state during positioning and ranging, and the measurement accuracy is improved.

[0028] Then the plug 29 is taken out, and the rotating disc 5 is rotated by 90 degrees, so that the lower end of the striker 7 is vertically downward, and then the plug 29 is inserted into the hole 27 through another hole 28, and the rotating disc 5 is fixed, and the electromagnet 4 is powered on, and the electromagnet 4 exerts a repulsive force on the upper end of the striker 7, and the striker 7 moves downward and hits the head of the mouse on the carrier plate 11, and the spring 9 is compressed, so that the mouse brain impact experiment is carried out.

[0029] The carrier plate 11 is fixedly connected with a plurality of equally spaced binding belts 12 on the top, and the ends of the binding belts 12 are fixedly connected with plug blocks 13, and the plug blocks 13 are provided with limiting holes 14, and the carrier plate 11 is provided with a plurality of insertion holes 15, and the plug blocks 13 can be inserted into the insertion holes 15, and the carrier plate 11 is provided with a plurality of limiting rods 16 on one side, and the limiting rods 16 can be inserted into the carrier plate 11 and inserted into the limiting holes 14. The binding belts 12 are elastic binding belts.

[0030] The mounting mechanism includes two spaced support blocks 17, the support blocks 17 are fixedly connected to the base 1, and a rotating shaft 18 is rotatably mounted between the two support blocks 17, and a connecting block 19 is fixedly installed on the rotating shaft 18, and the connecting block 19 is fixedly connected with the bottom of the carrier plate 11, and a friction wheel 20 is fixedly installed on one end of the rotating shaft 18, and a friction strip 21 is arranged on the upper end of the base 1, and the friction strip 21 is in contact with the friction wheel 20 and can be driven by friction, and the friction strip 21 is provided with symmetrically distributed second electric push rods 22 at both ends, and the second electric push rods 22 are fixedly installed on the base 1 and the output ends are fixedly connected with the friction strip 21. The second electric push rods 22 drive the friction strip 21 to move, the output directions of the second electric push rods 22 on both sides are opposite, the friction strip 21 can be moved to one side, the friction wheel 20 is driven to rotate by the friction strip 21, the friction wheel 20 and the rotating shaft 18 rotate synchronously, the carrier plate 11 can rotate around the rotating shaft 18, and the mouse on the carrier plate 11 can be tilted to one side, and the mouse head can be tilted during the experiment, and the mouse head can be hit at different positions.

[0031] The carrier plate 11 is provided with two groups of symmetrically distributed limiting mechanisms, and the limiting mechanism includes a support sheet 23, the support sheet 23 is fixedly connected to the carrier plate 11, and a limiting sheet 24 is arranged on one side of the support sheet 23, and a circular rod 25 is fixedly connected to both ends of the limiting sheet 24, and the circular rod 25 penetrates through the support sheet 23, and two symmetrically distributed elastic members 26 are fixedly connected between the limiting sheet 24 and the support sheet 23. The mouse is bound by the plurality of binding belts 12, the plug blocks 13 are inserted into the insertion holes 15, and the limiting rods 16 are inserted into the limiting holes 14, so that the plug blocks 13 can be fixed, and the binding belts 12 can be fixed, and the mouse is bound by the binding belts 12, so that the mouse remains stable during the experiment. The mouse head is located between the two limiting sheets 24, and the limiting sheets 24 are pressed on the head by the elastic members 26, so that the mouse head can be fixed, and the mouse head is also in a stable state during the experiment.

[0032] Working principle: the mouse is placed on the carrier plate 11, first rotate the rotating disc 5, make the laser range finder 10 vertical downward, measure the position of the mouse head, positioning and ranging work, through the display 2 display measurement data. When positioning and ranging, the pin 29 passes through one of the perforations 28 and is inserted into the jack 27, the rotating disc 5 can be fixed, and the laser range finder 10 can be kept stable during positioning and ranging, improving the measurement accuracy.

[0033] Then take out the pin 29, rotate the rotating disc 5 by 90 degrees, make the lower end of the striker 7 vertical downward, then pass the pin 29 through the other perforation 28 and insert it into the jack 27, fix the rotating disc 5, power on the electromagnet 4, the electromagnet 4 exerts repulsive force on the upper end of the striker 7, the striker 7 moves downward and hits the head of the mouse on the carrier plate 11, the spring 9 is compressed, so as to carry out the impact experiment of the mouse brain.

[0034] During the impact process, the pin 29 fixes the angle of the rotating disc 5 and the striker 7, ensuring that the striker 7 does not deviate or rotate during the impact process, improving the impact accuracy. In summary, the design realizes the laser emission of the laser range finder 10 and the release of the striker 7 at the same position, ensuring the accuracy of the impact point. After the impact is completed, the electromagnet 4 is powered off, the spring 9 drives the striker 7 to move upward and reset, and after automatic reset, it is convenient for the next experiment.

[0035] During the experiment, the mouse is bound on the body by the plurality of straps 12, the plug-in block 13 is inserted into the plug-in hole 15, and the limiting rod 16 is inserted into the limiting hole 14, so as to fix the plug-in block 13 and fix the straps 12, and the mouse is bound on the body by the straps 12, so that the mouse remains stable during the experiment. The mouse head is located between the two limiting pieces 24, and the limiting pieces 24 are pressed on the head by the elastic member 26, so as to fix the mouse head and keep the mouse head stable during the experiment.

[0036] The friction strip 21 is moved by the second electric push rod 22, the output directions of the two second electric push rods 22 are opposite, the friction strip 21 can be moved to one side, the friction wheel 20 is rotated by the friction strip 21, the friction wheel 20 and the rotating shaft 18 rotate synchronously, the carrier plate 11 can be rotated around the rotating shaft 18, the mouse on the carrier plate 11 can be inclined to one side, and the mouse head can be inclined during the experiment, so as to carry out the impact experiment on different positions of the mouse head.

[0037] Compared with the previous molding device, the brain injury and spinal cord injury impact device determines the impact point by using laser, facilitates the operator to adjust the position of the rat, thereby improving the accuracy of the rat modeling, and meets the needs of precise experiments; laser ranging is used to determine the zero point of the impact, compared with the previous naked eye observation, bioelectricity measurement and other methods, the operation of laser ranging saves the operation time of the operator, and improves the operation accuracy. The device has simple structure, low production cost, good molding effect, and can provide an experimental environment with high precision and high stability.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of the present application.

Claims

1. A cranial striking device, comprising a base (1), characterized in that, The upper end of the base (1) is equipped with a display (2), and the bottom of the display (2) is fixedly equipped with a support frame (3). An electromagnet (4) is installed inside the support frame (3), and the lower end of the electromagnet (4) extends out. A turntable (5) is rotatably mounted on the support frame (3). A groove (6) is provided in the turntable (5). A striker (7) is inserted in the groove (6). The upper end of the striker (7) is made of magnet. Sliders (8) are fixedly mounted on both sides of the striker (7) and are slidably disposed in the groove (6). Springs (9) are fixedly connected to each slider (8). The lower end of the springs (9) is fixedly connected in the groove (6). A laser rangefinder (10) is fixedly mounted on the outside of the turntable (5). With the center of the turntable (5) as the center, the laser rangefinder (10) and the lower end of the striker (7) are connected. The included angle of the head is 90 degrees. The support frame (3) has an insertion hole (27). The turntable (5) has two through holes (28). With the center of the turntable (5) as the center, the included angle of the two through holes (28) is 90 degrees. The turntable (5) has a pin (29) on its outer side. The pin (29) can pass through the through hole (28) and be inserted into the insertion hole (27). The upper end of the base (1) is provided with a carrier plate (11). The base (1) is provided with an installation mechanism. The installation mechanism is connected to the carrier plate (11). The carrier plate (11) is installed on the base (1) through the installation mechanism.

2. The cranial striking device according to claim 1, characterized in that, The top of the carrier plate (11) is fixedly connected with a plurality of equally spaced straps (12), and each end of the straps (12) is fixedly connected with a plug (13). Each plug (13) has a limiting hole (14). The carrier plate (11) has a plurality of slots (15). The plug (13) can be inserted into the slot (15). The carrier plate (11) has a plurality of limiting rods (16) on one side. The limiting rods (16) can pass through the carrier plate (11) and be inserted into the limiting hole (14).

3. The cranial striking device according to claim 2, characterized in that, All the straps (12) are elastic straps.

4. The craniocerebral striking device according to claim 3, characterized in that, The installation mechanism includes two spaced support blocks (17), which are fixedly connected to the base (1). A rotating shaft (18) is rotatably installed between the two support blocks (17). A connecting block (19) is fixedly installed on the rotating shaft (18). The connecting block (19) is fixedly connected to the bottom of the carrier plate (11). A friction wheel (20) is fixedly installed at one end of the rotating shaft (18). A friction strip (21) is provided at the upper end of the base (1). The friction strip (21) is in contact with the friction wheel (20) and the two can be transmitted through friction. A second electric push rod (22) is symmetrically distributed at both ends of the friction strip (21). The second electric push rod (22) is fixedly installed on the base (1) and its output end is fixedly connected to the friction strip (21).

5. A craniocerebral striking device according to claim 4, characterized in that, The carrier plate (11) is provided with two sets of symmetrically distributed limiting mechanisms. The limiting mechanism includes a support plate (23), which is fixedly connected to the carrier plate (11). A limiting plate (24) is provided on one side of the support plate (23). A round rod (25) is fixedly connected to both ends of the limiting plate (24). The round rod (25) passes through the support plate (23). Two symmetrically distributed elastic elements (26) are fixedly connected between the limiting plate (24) and the support plate (23).

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