Simple rat and mouse spinal cord injury impactor
By designing a simple spinal cord injury striker with large and small rats, adopting a combined structure of base, cannula and Klein, and achieving fixing and adjustment through multiple mechanisms, the spinal cord injury striker with complex structure, poor repeatability or expensive construction in the prior art, achieving simple, accurate and convenient operation.
Patent Information
- Application Number
- CN202421788842.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing spinal cord injury strikers have problems such as complex structure, poor repetition or expensive construction, which is difficult to meet research needs.
A simple type of spinal cord injury striker of large and small rats is designed, using a combined structure of base, casing and Kleiner pin. The striker is fixed and adjusted through longitudinal and transverse connecting rods, distance adjustment mechanism, clamping mechanism, bracket mechanism and clamping mechanism, ensuring simple operation, accurate and convenient operation.
It realizes the simplicity, cheapness, accuracy and repeatability of the striker, is suitable for multi-functional use, and the equipment is detachable and easy to carry.
Smart Images
Figure CN222929879U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of related products of medical experimental instruments, in particular to a simple spinal cord injury striker for rats and mice. Background Technique
[0002] The disability rate of spinal cord injury is extremely high, and its treatment is still a worldwide problem because its pathological mechanism is complex and not yet clear. Constructing a stable and reliable spinal cord injury model is a prerequisite for studying spinal cord injury and is of great significance for revealing the mechanism of spinal cord injury. The pathological reaction of the free fall strike model is closest to human acute spinal cord injury and is widely used for spinal cord injury modeling;
[0003] However, most of the existing spinal cord injury strikers currently have problems such as complex structure, poor repeatability or high cost.
[0004] Based on the above problems, we propose a simple spinal cord injury striker for rats and mice. Content of the Utility Model
[0005] The purpose of the utility model is to provide a spinal cord injury striker for rats and mice that integrates the advantages of simplicity, low cost, precision, good repeatability, multi-functional use, etc., so as to solve the problems raised in the above background technique.
[0006] To achieve the above object, the present utility model provides the following technical solution: A simple spinal cord injury striker for rats and mice, comprising a base, a sleeve and a Kirschner wire. An electric heating blanket is provided on the top of the base. One end of the base is fixedly connected with a stabilizing block, and a longitudinal connecting rod is connected to the stabilizing block. A transverse connecting rod is provided on one side of the longitudinal connecting rod. One end of the transverse connecting rod is connected to the longitudinal connecting rod through a distance adjusting mechanism. The other end of the transverse connecting rod is fixedly connected with a clamping mechanism for fixing the sleeve. A support mechanism is provided at the middle end of the transverse connecting rod. The top end of the support mechanism is fixedly connected with a clamping mechanism for fixing the Kirschner wire. The distance adjusting mechanism includes a positioning block fixed on the transverse connecting rod. A groove is provided on one side of the positioning block. First screws are threadedly inserted at both ends of the positioning block. One end of the first screw located in the groove is rotatably connected with an arc-shaped clamping plate. The clamping mechanism includes a hoop. The two ends of the hoop are respectively fixedly connected with a first locking block and a second locking block. The first locking block is fixedly connected with the transverse connecting rod. A second screw is slidably inserted into the first locking block. One end of the second screw is threadedly inserted into the second locking block. The support mechanism includes a connecting frame. The top end of the connecting frame is fixedly connected with a bearing block. The bottom end of the connecting frame is fixedly connected with a support block. A third screw is threadedly inserted into the support block. The top end of the third screw is rotated and connected with a pressing block. A traction rod is fixedly connected to the top of the bearing block. The clamping mechanism includes a base. The base is fixedly connected with the top end of the traction rod. A positioning seat is fixedly connected to the top of the base. A limiting plate is fixedly connected to one end of the positioning seat. A limiting block is fixedly connected to the top end of the limiting plate. A fourth screw is rotatably inserted into the limiting plate. A moving plate is threadedly sleeved on the fourth screw. The top end of the moving plate is fixedly connected with a moving frame. The top end of the moving frame is fixedly connected with a pressing plate.
[0007] Preferably, the stabilizing block has a threaded hole, the bottom end of the longitudinal connecting rod is provided with an external thread, and the longitudinal connecting rod is threadedly connected with the stabilizing block.
[0008] Preferably, a plurality of anti-slip lines are provided on the inner side wall of the arc-shaped clamping plate and are inclined.
[0009] Preferably, a rubber plate is fixedly connected to the bottom of the bearing block.
[0010] Preferably, clamping blocks are fixedly connected to the inner side walls of the two bottom ends of the moving frame. A strip-shaped card slot is provided on the outer side wall of the positioning seat. The clamping blocks are slidably inserted into the strip-shaped card slot.
[0011] Preferably, a rotating block is fixedly connected to one end of each of the first screw, the second screw, the third screw and the fourth screw. Anti-slip protrusions are provided on the outer side wall of the rotating block.
[0012] Preferably, a scale groove is provided on the side wall at the bottom end of the sleeve, and scale lines are provided at the edge of the scale groove.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] For this simple spinal cord injury striker for rats and mice, it is fixed between the longitudinal connecting rod and the stabilizing block. The positioning block on one end of the transverse connecting rod is clamped on the longitudinal connecting rod. By rotating the first screws on both sides, the arc-shaped clamping plates are clamped and fixed with the longitudinal connecting rod. One end of the sleeve is inserted between the first locking block and the second locking block. By rotating the second screw, the second locking block can be driven to move so as to clamp and fix the sleeve. By rotating the third screw and rotating it in the support block, the pressing block can be pushed to move. At this time, the pressing block presses the transverse connecting rod and fixes it between the bearing block and the pressing block. By rotating the fourth screw and rotating it in the limiting plate, the moving plate threadedly sleeved on the fourth screw will drive the moving frame to move accordingly, thus promoting the movement of the pressing plate. The Kirschner wire is placed between the pressing plate and the limiting block to achieve clamping and fixing. The overall structure of the present utility model is simple and convenient to operate. The striking position and height can be accurately adjusted. The overall device can be disassembled according to the selection requirements of rats and mice and is portable. Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of a simple spinal cord injury striker for rats and mice of the present utility model;
[0016] Figure 2 It is a schematic diagram of the distance adjustment mechanism and the clamping mechanism of a simple spinal cord injury striker for rats and mice of the present utility model;
[0017] Figure 3 It is a schematic diagram of the bracket mechanism of a simple spinal cord injury striker for rats and mice of the present utility model;
[0018] Figure 4 It is a schematic diagram of the clamping mechanism of a simple spinal cord injury striker for rats and mice of the present utility model;
[0019] Figure 5 It is a schematic diagram of the sleeve structure of a simple spinal cord injury striker for rats and mice of the present utility model.
[0020] In the figure: 1, base; 2, sleeve; 3, Kirschner wire; 4, electric heating blanket; 5, stabilizing block; 6, longitudinal connecting rod; 7, transverse connecting rod; 8, distance adjusting mechanism; 9, clamping mechanism; 10, bracket mechanism; 11, clamping mechanism; 12, positioning block; 13, first screw; 14, arc-shaped clamping plate; 15, hoop; 16, first locking block; 17, second locking block; 18, second screw; 19, connecting frame; 20, bearing block; 21, support block; 22, third screw; 23, pressing block; 24, traction rod; 25, base; 26, positioning seat; 27, limiting plate; 28, limiting block; 29, fourth screw; 30, moving plate; 31, moving frame; 32, pressing plate; 33, clamping block. Detailed implementation manner
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0024] Please refer to Figures 1-5, an embodiment provided by the present utility model: a simple spinal cord injury striker for rats and mice, comprising a base 1, a sleeve 2 and a Kirschner wire 3. An electric heating blanket 4 is provided on the top of the base 1. One end of the base 1 is fixedly connected with a stabilizing block 5. A longitudinal connecting rod 6 is connected to the stabilizing block 5. A transverse connecting rod 7 is provided on one side of the longitudinal connecting rod 6. One end of the transverse connecting rod 7 is connected to the longitudinal connecting rod 6 through an adjusting mechanism 8. The other end of the transverse connecting rod 7 is fixedly connected with a clamping mechanism 9 for fixing the sleeve 2. A support mechanism 10 is provided at the middle end of the transverse connecting rod 7. The top of the support mechanism 10 is fixedly connected with a clamping mechanism 11 for fixing the Kirschner wire 3. The adjusting mechanism 8 includes a positioning block 12 fixed on the transverse connecting rod 7. A groove is provided on one side of the positioning block 12. First screws 13 are threadedly inserted at both ends of the positioning block 12. One end of the first screw 13 located in the groove is rotatably connected with an arc-shaped clamping plate 14. The clamping mechanism 9 includes a hoop 15. The two ends of the hoop 15 are respectively fixedly connected with a first locking block 16 and a second locking block 17. The first locking block 16 is fixedly connected with the transverse connecting rod 7. A second screw 18 is slidably inserted into the first locking block 16. One end of the second screw 18 is threadedly inserted into the second locking block 17. Specifically, by rotating the first screws 13 on both sides, the arc-shaped clamping plate 14 is urged to clamp and fix the longitudinal connecting rod 6. One end of the sleeve 2 is inserted between the first locking block 16 and the second locking block 17. By rotating the second screw 18, the second locking block 17 can be driven to move so as to realize the clamping and fixing of the sleeve 2. The support mechanism 10 includes a connecting frame 19. The top of the connecting frame 19 is fixedly connected with a bearing block 20. The bottom end of the connecting frame 19 is fixedly connected with a support block 21. A third screw 22 is threadedly inserted into the support block 21. The top end of the third screw 22 is rotatably connected with a pressing block 23. A traction rod 24 is fixedly connected to the top of the bearing block 20. Specifically, by rotating the second screw 18, the second locking block 17 can be driven to move so as to realize the clamping and fixing of the sleeve 2. The sleeve 2 can be replaced according to the different diameters of the spinal cords of rats and mice. By rotating the third screw 22 and rotating it in the support block 21, the pressing block 23 can be pushed to move. At this time, the pressing block 23 will press the transverse connecting rod 7 and fix it between the bearing block 20 and the pressing block 23;The clamping mechanism 11 includes a base 25, the base 25 is fixedly connected to the top end of the traction rod 24, a positioning seat 26 is fixedly connected to the top of the base 25, a limiting plate 27 is fixedly connected to one end of the positioning seat 26, a limiting block 28 is fixedly connected to the top end of the limiting plate 27, a fourth screw rod 29 is rotatably inserted into the limiting plate 27, a moving plate 30 is threadedly sleeved on the fourth screw rod 29, a moving frame 31 is fixedly connected to the top end of the moving plate 30, and a pressing plate 32 is fixedly connected to the top end of the moving frame 31. Specifically, when the fourth screw rod 29 rotates within the limiting plate 27, the moving plate 30 threadedly sleeved on the fourth screw rod 29 will drive the moving frame 31 to move, thereby causing the pressing plate 32 to move. The Kirschner wire 3 is placed between the pressing plate 32 and the limiting block 28 to achieve clamping and fixation, and the Kirschner wire 3 can be replaced according to the different diameters of the spinal cords of rats and mice.
[0025] In this embodiment, there are screw holes on the stabilizing block 5, the bottom end of the longitudinal connecting rod 6 is provided with an external thread, and the longitudinal connecting rod 6 is threadedly connected to the stabilizing block 5; multiple anti-slip lines are arranged obliquely on the inner side wall of the arc-shaped clamping plate 14 to increase the clamping stability; a rubber plate is fixedly connected to the bottom of the bearing block 20 to increase the clamping buffer force; clamping blocks 33 are fixedly connected to the inner side walls of the bottoms of both ends of the moving frame 31, and a strip-shaped card slot is provided on the outer side wall of the positioning seat 26, and the clamping blocks 33 are slidably inserted into the strip-shaped card slot to limit the movement of both sides of the moving frame 31; rotating blocks are fixedly connected to one ends of the first screw rod 13, the second screw rod 18, the third screw rod 22 and the fourth screw rod 29, and anti-slip protrusions are provided on the outer side walls of the rotating blocks to facilitate rotation; a scale groove is provided on the side wall of the bottom end of the sleeve 2, the height of the Kirschner wire 3 and the bottom end of the sleeve 2 can be observed through the scale groove, and scale lines are provided at the edges of the scale groove to observe the striking height of the Kirschner wire.
[0026] Working principle: First, the longitudinal connecting rod 6 is fixed to the stabilizing block 5. The positioning block 12 at one end of the transverse connecting rod 7 is clamped on the longitudinal connecting rod 6. By rotating the first screws 13 on both sides, the arc-shaped clamping plates 14 are clamped and fixed to the longitudinal connecting rod 6. One end of the sleeve 2 is inserted between the first locking block 16 and the second locking block 17. By rotating the second screw 18, the second locking block 17 can be driven to move, thereby realizing the clamping and fixing of the sleeve 2. The sleeve 2 can be replaced according to the different diameters of the spinal cords of rats and mice. By rotating the third screw 22 and rotating it in the support block 21, the pressing block 23 can be pushed to move. At this time, the pressing block 23 presses the transverse connecting rod 7 and fixes it between the bearing block 20 and the pressing block 23. By rotating the fourth screw 29 and rotating it in the limiting plate 27, the moving plate 30 threadedly sleeved on the fourth screw 29 will drive the moving frame 31 to move, thereby promoting the movement of the pressing plate 32. The Kirschner wire 3 is placed between the pressing plate 32 and the limiting block 28 to realize clamping and fixing. The Kirschner wire 3 can be replaced according to the different diameters of the spinal cords of rats and mice. The bottom end of the sleeve 2 is placed above the striking part. The rising height of the Kirschner wire 3 in the sleeve 2 is the striking distance.
[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A simple rat spinal cord injury impactor, comprising a base (1), a sleeve (2) and a Kirschner wire (3), characterized in that: The top of the base (1) is provided with an electric heating blanket (4), one end of the base (1) is fixedly connected with a stabilizing block (5), the stabilizing block (5) is connected with a longitudinal connecting rod (6), one side of the longitudinal connecting rod (6) is provided with a transverse connecting rod (7), one end of the transverse connecting rod (7) is connected to the longitudinal connecting rod (6) through a distance adjustment mechanism (8), the other end of the transverse connecting rod (7) is fixedly connected with a clamping mechanism (9) for fixing the sleeve (2), the middle end of the transverse connecting rod (7) is provided with a bracket mechanism (10), the top end of the bracket mechanism (10) is fixedly connected with a clamping mechanism (9) for fixing the sleeve (2), and the bottom end of the transverse connecting rod (7) is fixedly connected with a clamping mechanism (9) for fixing the sleeve (2). The clamping mechanism (11) of the Schmidt needle (3) is characterized in that the distance adjustment mechanism (8) comprises a positioning block (12) fixed on the transverse connecting rod (7), a groove is provided on one side of the positioning block (12), both ends of the positioning block (12) are threadedly inserted with a first screw rod (13), one end of the first screw rod (13) located in the groove is rotatably connected with an arc-shaped clamping plate (14), the clamping mechanism (9) comprises a hoop (15), both ends of the hoop (15) are respectively fixedly connected with a first locking block (16) and a second locking block (17), the first locking block (16) is fixedly connected to the transverse connecting rod (7), the A second screw rod (18) is slidably inserted on the first locking block (16), one end of the second screw rod (18) is threadedly inserted on the second locking block (17), the bracket mechanism (10) comprises a connecting frame (19), the top end of the connecting frame (19) is fixedly connected to a bearing block (20), the bottom end of the connecting frame (19) is fixedly connected to a support block (21), a third screw rod (22) is threadedly inserted on the support block (21), the top end of the third screw rod (22) is rotatably connected to a pressing block (23), the top of the bearing block (20) is fixedly connected to a traction rod (24), the clamping mechanism (1 1) comprises a base (25), the base (25) is fixedly connected to the top of a traction rod (24), the top of the base (25) is fixedly connected to a positioning seat (26), one end of the positioning seat (26) is fixedly connected to a limiting plate (27), the top of the limiting plate (27) is fixedly connected to a limiting block (28), a fourth screw rod (29) is rotatably inserted on the limiting plate (27), a movable plate (30) is threadedly sleeved on the fourth screw rod (29), the top of the movable plate (30) is fixedly connected to a movable frame (31), and the top of the movable frame (31) is fixedly connected to an extrusion plate (32).
2. The simple rat spinal cord injury striker according to claim 1, characterized in that: The upper screw hole of the stabilizing block (5) is provided with an external thread at the bottom end of the longitudinal connecting rod (6), and the longitudinal connecting rod (6) and the stabilizing block (5) are connected by threads.
3. The simple rat spinal cord injury striker according to claim 1, characterized in that: The inner side wall of the arc-shaped clamping plate (14) is provided with a plurality of anti-slip grooves arranged in an inclined manner.
4. The simple rat spinal cord injury striker according to claim 1, characterized in that: A rubber plate is fixedly connected to the bottom of the bearing block (20).
5. The simple rat spinal cord injury striker according to claim 1, characterized in that: A clamping block (33) is fixedly connected to the inner side walls of the bottom of both ends of the movable frame (31), and a strip-shaped clamping groove is provided on the outer side wall of the positioning seat (26), and the clamping block (33) is slidably inserted in the strip-shaped clamping groove.
6. The simple rat spinal cord injury striker according to claim 1, characterized in that: One end of the first screw rod (13), the second screw rod (18), the third screw rod (22) and the fourth screw rod (29) are all fixedly connected to a rotating block, and an anti-slip protrusion is provided on the outer side wall of the rotating block.
7. The simple rat spinal cord injury striker according to claim 1, characterized in that: A scale groove is provided on the side wall of the bottom end of the sleeve (2), and scale lines are provided on the edge of the scale groove.