阅读说明：本技术 一种大动物创伤性脑损伤垂直打击装置 (Vertical striking device for traumatic brain injury of large animal ) 是由 陆兆丰 王亚琼 朱义通 陆若玉 许佑琪 杨家发 于 2021-09-18 设计创作，主要内容包括：本发明公开了一种大动物创伤性脑损伤垂直打击装置,包括污液收集箱；污液收集箱的设置方便了实验过程中污液的收集,所述污液收集箱的上表面设置有网孔板,网孔板的设置使得污液可以快速进入到污液收集箱的内部,网孔板通过带头螺柱与污液收集箱固定连接,带头螺柱的设置方便了网孔板的拆卸,本装置结构稳定,操作简单,且可重复操作；动物头部样本夹具使用简便,且撞击精度高,撞击力直接作用于动物模型的脑膜上,避免了颅骨碎片的产生,有效提高了实验的精准性,污液收集箱的设置方便了实验过程中污液的收集,网孔板的设置使得污液可以快速进入到污液收集箱的内部。(The invention discloses a vertical hitting device for traumatic brain injury of a large animal, which comprises a foul solution collecting box; the arrangement of the dirty liquid collecting box facilitates the collection of dirty liquid in the experimental process, the upper surface of the dirty liquid collecting box is provided with the mesh plate, the arrangement of the mesh plate enables dirty liquid to rapidly enter the dirty liquid collecting box, the mesh plate is fixedly connected with the dirty liquid collecting box through the stud with the head, and the arrangement of the stud with the head facilitates the disassembly of the mesh plate; animal head sample anchor clamps use portably, and the striking precision is high, and the impact direct action has avoided the production of skull fragment on the meninges of animal model, has effectively improved the accurate nature of experiment, and dirty liquid collecting box's setting has made things convenient for the collection of dirty liquid in the experimentation, and the setting up of mesh board makes dirty liquid can enter into the inside of dirty liquid collecting box fast.)

1. A vertical striking device for traumatic brain injury of large animals is characterized in that: comprises a dirty liquid collecting box (10); the upper surface of the dirty liquid collecting box (10) is provided with a mesh plate (8), the left end and the right end of the outer side surface of the mesh plate (8) are respectively provided with a second slide rail (13), the second slide rail (13) is connected with a second slide block (15) in a sliding manner, the upper surface of the second slide block (15) is provided with a telescopic rod (7), the telescopic rod (7) is connected with a first slide rail (5) through a mounting plate (6) arranged on the upper end surface of the telescopic rod, the first slide rail (5) is connected with a first slide block (21) in a sliding manner, the outer side surface of the first slide block (21) is provided with a hollow barrel body (4), the middle part of the outer side surface of the hollow barrel body (4) is provided with a protective sleeve (26), the inner part of the protective sleeve body (26) is provided with an electric telescopic rod (25), the lower end surface of the hollow barrel body (4) is provided with a spring plug (17), and the inner side surface of the spring plug (17) is provided with a reset spring plug (27), the upper end surface of the return spring (27) is provided with a cylindrical sliding block (28), the cylindrical sliding block (28) is connected with a detachable striking block (30) through a pressure lever (29) arranged on the lower surface of the cylindrical sliding block, the detachable striking block (30) is arranged right below the spring plug (17), the middle part of the upper surface of the spring plug (17) is provided with a guide rod (3), the outer side surface of the guide rod (3) is connected with a cylindrical weight (24) in a sliding way, a head positioner (9) is arranged on the upper surface of the mesh plate (8), a head placing groove is arranged on the upper surface of the head positioner (9), an elastic sponge cushion (12) is arranged in the head placing groove, the outer side surface of the dirty liquid collecting box (10) is provided with a control switch group (22), the input end of the control switch group (22) is electrically connected with the output end of an external power supply, and the output end of the control switch group (22) is electrically connected with the input end of an electric telescopic rod (25).

2. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the mesh plate (8) is fixedly connected with the dirty liquid collecting box (10) through a stud with a head (18).

3. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the edge of the upper surface of the mesh plate (8) is provided with a rectangular splash-proof frame (11).

4. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the second sliding block (15) is fixed on the second sliding rail (13) through a second limiting stud (19).

5. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the first sliding block (21) is fixedly connected with a pressing rod (29) through a first limiting stud (20) and a first sliding rail (5) and penetrates through a positioning hole formed in the spring plug (17).

6. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the guide rod (3) penetrates through a positioning hole in the cylindrical sliding block (28), and the guide rod (3) penetrates through the upper end face of the hollow cylinder body (4).

7. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the outer side surface of the guide rod (3) is provided with a sliding groove, the inner side surface of the cylindrical weight (24) is provided with a ball (31), and the ball (31) is arranged inside the sliding groove.

8. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the lower end of the outer side surface of the head positioner (9) is fixedly connected with the mesh plate (8) through a positioning seat (14).

9. The vertical hitting device for the traumatic brain injury of the large animal according to claim 1, wherein: the positioning device is characterized in that a positioning stud (2) is arranged in the middle of the rear end of the outer side face of the head positioner (9), the front end face of the positioning stud (2) is rotatably connected with a U-shaped clamp plate (1), the U-shaped clamp plate (1) is connected with two positioning studs (16) symmetrically arranged through threaded holes formed in the left end and the right end of the outer side face of the U-shaped clamp plate, rectangular grooves (23) are formed in the front side and the rear side of the rear end of the outer side face of the head positioner (9), and the positioning studs (16) penetrate through the rectangular grooves (23).

Technical Field

The invention relates to the technical field of rodent models for simulating traumatic brain injury, in particular to a vertical hitting device for traumatic brain injury of large animals.

Background

It is well known that injuries to the human head, which often occur in the context of traffic accidents, objects falling from high altitudes, falls from high altitudes and blows, have a high mortality rate. In the process of protecting and researching the head of a human body, data such as injury criterion and mechanical response of head injury are often acquired. Experiments on specific working conditions are an effective data acquisition mode. Of course, we cannot achieve a trauma test of human head, but using animal head samples such as pigs, dogs and the like as a substitute is a good way.

In the prior art, a free falling body brain injury model striker is generally used for simulating and striking the head of an animal, and the striker manufactured by the free falling body brain injury model striker according to the free falling body principle is mainly used for manufacturing animal brain injury models. The free falling body brain injury model striker consists of four parts, namely a striker, a falling striking rod, a metal sleeve and a brain locator. The diameter of the firing pin is 4.5mm, the height of the firing pin is 20mm, the weight of the striking rod is 40 g and 20 g, the height of the metal sleeve is 30cm, the brain locator comprises a bottom plate, a rat adapter, a rat ear rod and the like, the method cannot be used for large animals, the impact strength and precision are difficult to control, and the brain tissue damage is uneven.

Meanwhile, the striking device applied to the craniocerebral injury modeling in the prior art directly acts on the skull of the head of an animal when in use, more bone fragments can be generated in the striking process, the bone fragments are inconvenient to clean, and the model is easily damaged by the bone fragments in the cleaning process.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects and provide a vertical hitting device for traumatic brain injury of large animals, which has the advantages of stable structure, simple operation and repeatable operation; the animal head sample clamp is simple and convenient to use, the impact precision is high, the impact force directly acts on the meninges of the animal model, skull fragments are avoided, and the problem in the background technology can be effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: a vertical hitting device for traumatic brain injury of large animals comprises a foul solution collecting box; the upper surface of the dirty liquid collecting box is provided with a mesh plate, the left end and the right end of the outer side surface of the mesh plate are respectively provided with a second slide rail, the second slide rail is connected with a second slide block in a sliding manner, the upper surface of the second slide block is provided with a telescopic rod, the telescopic rod is connected with a first slide rail through a mounting plate arranged on the upper end surface of the telescopic rod, the first slide rail is connected with a first slide block in a sliding manner, the outer side surface of the first slide block is provided with a hollow cylinder, the middle part of the outer side surface of the hollow cylinder is provided with a protective sleeve, the inner part of the protective sleeve is provided with an electric telescopic rod, the lower end surface of the hollow cylinder is provided with a spring plug, the inner side surface of the spring plug is provided with a reset spring, the upper end surface of the reset spring is provided with a cylindrical slide block, the cylindrical slide block is connected with a detachable striking block through a pressure rod arranged on the lower surface of the cylindrical slide block, the detachable striking block is arranged under the spring plug, the middle part of the upper surface of the spring plug is provided with a guide rod, the lateral surface sliding connection of guide arm has cylindricality weight, the upper surface of mesh board is provided with the head locator, and the upper surface of head locator is provided with the head standing groove, and the inside of head standing groove is provided with the elasticity foam-rubber cushion, the lateral surface of foul solution collecting box is provided with control switch group, and control switch group's input is connected with external power source's output electricity, and control switch group's output is connected with electric telescopic handle's input electricity.

Furthermore, the mesh plate is fixedly connected with the dirty liquid collecting box through the stud with the head, and the stud with the head is arranged to facilitate the detachment of the mesh plate.

Further, the upper surface edge of mesh plate is provided with rectangle splashproof frame, and the sewage splash can effectively be avoided in the setting of rectangle splashproof frame.

Furthermore, the second sliding block is fixed on the second sliding rail through a second limiting stud.

Furthermore, the first sliding block is fixedly connected with the first sliding rail through a first limiting stud and a first sliding rail, and the pressing rod penetrates through a positioning hole formed in the spring plug.

Furthermore, the guide rod penetrates through a positioning hole in the cylindrical sliding block, and the guide rod penetrates through the upper end face of the hollow cylinder body.

Furthermore, a sliding groove is formed in the outer side surface of the guide rod, and a ball is arranged on the inner side surface of the cylindrical weight and is arranged inside the sliding groove; the ball combines the setting of spout can effectively reduce the frictional force when cylindricality weight whereabouts.

Further, the lower end of the outer side face of the head positioner is fixedly connected with the mesh plate through a positioning seat; the head positioner can be arranged at any position of the upper surface of the mesh plate through the positioning seat.

Furthermore, a position adjusting stud is arranged in the middle of the rear end of the outer side surface of the head positioner, a U-shaped clamping plate is rotatably connected to the front end surface of the position adjusting stud, the U-shaped clamping plate is connected with two symmetrically arranged positioning studs through threaded holes arranged at the left end and the right end of the outer side surface of the U-shaped clamping plate, rectangular grooves are formed in the front side and the rear side of the rear end of the outer side surface of the head positioner, and the positioning studs penetrate through the rectangular grooves; the head of the animal can be fixed by the head positioner.

Compared with the prior art, the invention has the beneficial effects that: this perpendicular hitting device of big animal traumatic brain injury has following benefit:

1. the vertical hitting device for the traumatic brain injury of the large animal has the advantages of stable structure, simplicity in operation and repeatability in operation; the animal head sample clamp is simple and convenient to use, the impact precision is high, the impact force directly acts on the meninges of the animal model, skull fragments are avoided, and the accuracy of the experiment is effectively improved;

2. the dirty liquid collecting box is convenient to collect dirty liquid in the experimental process, the dirty liquid can quickly enter the dirty liquid collecting box due to the arrangement of the mesh plate, the front-back sliding adjustment of the device is facilitated due to the arrangement of the second slide rail, the lifting adjustment of the device is facilitated due to the arrangement of the telescopic rod, and the left-right sliding adjustment of the equipment can be conveniently performed due to the arrangement of the first slide rail;

3. the arrangement of the spring plugs facilitates the disassembly and replacement of the return springs, the arrangement of the return springs can play a good role in buffering, and the arrangement of the head-mounted screw facilitates the disassembly of the mesh plate; the ball combines the setting of spout can effectively reduce the frictional force when cylindricality weight whereabouts, can install the head locator in mesh board upper surface optional position through the positioning seat, can fix the head of animal through the head locator.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a left side view of the present invention;

FIG. 5 is a schematic view of the internal structure of the hollow cylinder;

FIG. 6 is an enlarged view of a portion of FIG. 5A;

fig. 7 is a schematic diagram of the structure of a cylindrical weight.

In the figure: 1U-shaped clamping plate, 2 positioning studs, 3 guide rods, 4 hollow cylinders, 5 first slide rails, 6 mounting plates, 7 telescopic rods, 8 mesh plates, 9 head positioners, 10 dirty liquid collecting boxes, 11 rectangular splash-proof frames, 12 elastic sponge pads, 13 second slide rails, 14 positioning seats, 15 second slide blocks, 16 positioning studs, 17 spring plugs, 18 headed studs, 19 second limiting studs, 20 first limiting studs, 21 first slide blocks, 22 control switch groups, 23 rectangular grooves, 24 cylindrical weights, 25 electric telescopic rods, 26 protective sleeves, 27 reset springs, 28 cylindrical slide blocks, 29 compression rods, 30 detachable striking blocks and 31 balls.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that:

referring to fig. 1-4, a vertical striking device for traumatic brain injury of large animals comprises a dirty liquid collecting box 10; the dirty liquid collecting box 10 is arranged to facilitate the collection of dirty liquid in the experimental process, the upper surface of the dirty liquid collecting box 10 is provided with the mesh plate 8, the arrangement of the mesh plate 8 enables dirty liquid to rapidly enter the dirty liquid collecting box 10, the mesh plate 8 is fixedly connected with the dirty liquid collecting box 10 through the stud bolt 18 with a head, the arrangement of the stud bolt 18 with a head facilitates the disassembly of the mesh plate 8, the edge of the upper surface of the mesh plate 8 is provided with the rectangular splash-proof frame 11, the arrangement of the rectangular splash-proof frame 11 can effectively avoid the splash of the dirty liquid, the left end and the right end of the outer side surface of the mesh plate 8 are respectively provided with the second slide rails 13, the arrangement of the second slide rails 13 facilitates the front-back sliding adjustment of the device, the second slide rails 13 are slidably connected with the second slide blocks 15, the second slide blocks 15 are fixed on the second slide rails 13 through the second limiting studs 19, the upper surface of the second slide blocks 15 is provided with the telescopic rods 7, and the arrangement of the telescopic rods 7 facilitates the lifting adjustment of the device, the telescopic rod 7 is connected with a first slide rail 5 through a mounting plate 6 arranged on the upper end face of the telescopic rod, the arrangement of the first slide rail 5 enables the equipment to be conveniently adjusted in a left-right sliding mode, a first slide block 21 is connected onto the first slide rail 5 in a sliding mode, a hollow cylinder 4 is arranged on the outer side face of the first slide block 21, a spring plug 17 is arranged on the lower end face of the hollow cylinder 4, the first slide block 21 is fixedly connected with the first slide rail 5 through a first limiting stud 20, a head positioner 9 is arranged on the upper surface of the mesh plate 8, and the lower end of the outer side face of the head positioner 9 is fixedly connected with the mesh plate 8 through a positioning seat 14; the head positioner 9 can be installed at any position of the upper surface of the mesh plate 8 through the positioning seat 14, a head placing groove is formed in the upper surface of the head positioner 9, an elastic sponge mat 12 is arranged inside the head placing groove, a positioning stud 2 is arranged in the middle of the rear end of the outer side surface of the head positioner 9, a U-shaped clamp plate 1 is rotatably connected to the front end surface of the positioning stud 2, the U-shaped clamp plate 1 is connected with two symmetrically-arranged positioning studs 16 through threaded holes formed in the left end and the right end of the outer side surface of the U-shaped clamp plate 1, rectangular grooves 23 are formed in the front side and the rear side of the rear end of the outer side surface of the head positioner 9, and the positioning studs 16 penetrate through the rectangular grooves 23; the head of the animal can be fixed by the head positioner 9, and the outer side surface of the dirty liquid collecting box 10 is provided with a control switch group 22.

Referring to fig. 5-7, a protective sleeve 26 is installed at the middle of the outer side of the hollow cylinder 4, an electric telescopic rod 25 is installed inside the protective sleeve 26, a return spring 27 is installed at the inner side of the spring plug 17, the spring plug 17 is convenient to disassemble and replace, the return spring 27 can achieve a good buffering effect, a cylindrical slider 28 is installed at the upper end of the return spring 27, the cylindrical slider 28 is connected with a detachable striking block 30 through a press rod 29 arranged at the lower surface of the cylindrical slider 28, the detachable striking block 30 is arranged right below the spring plug 17, the press rod 29 passes through a positioning hole arranged on the spring plug 17, a guide rod 3 is installed at the middle of the upper surface of the spring plug 17, a cylindrical weight 24 is slidably connected to the outer side of the guide rod 3, a sliding groove is arranged on the outer side of the guide rod 3, and a ball 31 is arranged on the inner side of the cylindrical weight 24, the balls 31 are arranged inside the chute; the arrangement of the balls 31 in combination with the sliding grooves can effectively reduce the friction force when the cylindrical weight 24 falls.

When in use: switching on an external power supply, laying a dog on a sponge pad in a prone position, lifting the head of a neck pad cylindrical sponge pad to ensure that parietal bones are fully exposed, placing the head of the dog in a head positioner 9, shaving and disinfecting the top of the back forehead of the dog, laying an operation wound towel, longitudinally cutting a 5-7 cm long incision at a position 1.5 cm above the forehead on the right side of the mid-sagittal plane, separating and using a retractor to pull skin and subcutaneous tissues, exposing the frontal periosteum, and using a periosteum stripper to separate the periosteum; sequentially sawing outer and inner bone plates of a skull by using a hand-operated circular saw, paying attention to temporalis adhesion in the sawing process, flushing and cooling by using physiological saline, preventing the endocranium from being damaged by excessive heat generated by friction, completely taking out the bone plates of the skull, exposing the endocranium, sealing the broken end of the skull by bone wax to stop bleeding, adjusting the hollow cylinder 4 to be right above the endocranium, adjusting the detachable striking block 30 to a proper height, sleeving the cylindrical weight 20 on the guide rod 3, controlling the electric telescopic rod 25 to shrink by the control switch group 22, enabling the cylindrical weight 20 to fall down to press the cylindrical sliding block 28 immediately, shrinking the reset spring 27, and driving the detachable striking block 30 to simulate the exposure of the head of a dog to the endocranium by the cylindrical sliding block 28 through the pressing rod 29; after striking, reset spring 27 will dismantle and strike piece 30 and lift up fast, remove to dismantle and strike piece 30, both can carry out the experiment in next step, and the device can also be used to the animal of different age brackets, can dismantle the change to dismantle and strike piece 30.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.