Small animal trauma machine

By designing a small animal trauma machine, using components such as limiting parts, lifting screws and electromagnets, the problems of precise impact and force control in animal experiments were solved, and high repeatability and accurate experimental results were achieved.

CN223263057UActive Publication Date: 2025-08-26AEROSPACE CENT HOSPITAL
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Patent Information

Application Number
CN202422134266.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-08-26
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The prior art is difficult to accurately impact animals, resulting in deviations in experimental data and poor repeatability.

Method used

A small animal trauma machine is designed, including an operating table, a fixing module, an impact module and an adjustment module. Through the combination of limiting parts, lifting screws, electromagnets and impact balls, precise impact and force control of various parts of the animal's body is achieved.

Benefits of technology

Accurate impacts according to different animal body types are achieved, avoid deviations in experimental data, and can reliably control the impact force, improving the repeatability of the experiment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of animal experiments, and discloses a small animal trauma machine which is characterized in that a fixing module is slidably arranged on an operation table and used for fixing animals, an impact module comprises a limiting piece, a lifting screw, an electromagnet and an impact ball, the limiting piece is provided with first scales in the height direction of the limiting piece, and one side of the limiting piece in the height direction is provided with an object viewing window; the object viewing window penetrates through the limiting piece in the height direction, a baffle is installed at the top of the limiting piece, the lifting screw is vertically arranged and screwed to the baffle, one end of the lifting screw extends into the object viewing window, the electromagnet is connected to one end of the lifting screw, the impact ball is arranged on the object viewing window, and the impact ball is attracted to the electromagnet when the electromagnet is powered on and impacts an animal when the electromagnet is powered off. The limiting piece is connected to the adjusting module, the adjusting module drives the limiting piece to slide in the x-axis direction, the y-axis direction and the z-axis direction, accurate impact on all parts of bodies of different animals can be achieved, experimental data deviation during impact is avoided, the impact strength can be controlled, and repeatability is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of animal experiments, in particular to a small animal trauma machine. Background Art

[0002] With the progress of human industrialization, various types of trauma, such as traffic injuries and falls from heights, have increased dramatically. Globally, millions of people die from various types of trauma every year. Recognizing and understanding the mechanisms of trauma in various parts of the body and the pathophysiological changes in body tissues after injury, and formulating reasonable and effective treatment measures on this basis have become the goals of most basic and clinical workers. The establishment of experimental animal models has become an important part of their research methods. Studying various types of trauma through animal experiments has extremely important clinical significance and can provide a strong theoretical basis for improving the recovery of trauma patients.

[0003] At present, the animal experimental models of trauma at home and abroad mainly include biological trauma machine impact, direct heavy object free fall impact, direct bloodletting to cause hemorrhagic shock, etc. When using direct heavy object free fall impact for trauma experiments, it is difficult to adjust the animal's impact site according to the body size of different animals, making it difficult to achieve precise impact on various parts of the animal's body, resulting in experimental data deviations during impact. In addition, it is also difficult to control the impact force, and the repeatability is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a small animal trauma machine, which can accurately impact various parts of the animal's body and has high repeatability.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A small animal trauma machine, comprising:

[0007] operating table;

[0008] a fixing module, the fixing module being slidably disposed on the operating table and configured to fix the animal;

[0009] An impact module includes a limiter, a lifting screw, an electromagnet, and an impact ball. The limiter is provided with a first scale along its height direction. A viewing window is provided on one side of the limiter in the height direction. The viewing window passes through the limiter in the height direction. A baffle is installed on the top of the limiter. The lifting screw is vertically arranged and screwed to the baffle, and one end of the lifting screw extends into the viewing window. The electromagnet is connected to one end of the lifting screw. The impact ball is placed in the viewing window. When the electromagnet is energized, the impact ball is attracted to the electromagnet. When the electromagnet is de-energized, the impact ball impacts the animal.

[0010] The regulating module is connected to the limiting member, and the regulating module is configured to drive the limiting member to slide along the x-axis direction, the y-axis direction, and the z-axis direction.

[0011] Preferably, the adjustment module includes a first adjustment unit, a second adjustment unit and a third adjustment unit, the first adjustment unit is installed on the operating table, the second adjustment unit is slidably connected to the first adjustment unit, the third adjustment unit is slidably connected to the second adjustment unit, the limiter is connected to the third adjustment unit, the first adjustment unit is configured to drive the second adjustment unit to slide along the x-axis direction, the second adjustment unit is configured to drive the third adjustment unit to slide along the z-axis direction, and the third adjustment unit is configured to drive the limiter to slide along the y-axis direction.

[0012] Preferably, the first adjusting unit includes a first screw mounted on the operating table, the first screw being arranged along the x-axis direction, the second adjusting unit includes a first slider screwed to the first screw and a second screw connected to the first slider, the second screw being arranged along the z-axis direction, the third adjusting unit includes a second slider screwed to the second screw, a third screw connected to the second slider and a third slider screwed to the third screw, the third screw being arranged along the y-axis direction, and the limit member being connected to the third slider.

[0013] Preferably, the first adjusting unit further includes a first guide rail arranged along the x-axis direction, the first screw is rotatably arranged on the first guide rail, and the first slider is clamped on the first guide rail on two opposite sides along the x-axis direction, the second adjusting unit further includes a second guide rail arranged along the z-axis direction, the second guide rail is connected to the first slider, the second screw is rotatably arranged on the second guide rail, and the second slider is clamped on the second guide rail on two opposite sides along the z-axis direction, and the third adjusting unit further includes a third guide rail arranged along the y-axis direction, the third guide rail is connected to the second slider, the third screw is rotatably arranged on the third guide rail, and the third slider is clamped on the third guide rail on two opposite sides along the y-axis direction.

[0014] Preferably, the first guide rail is provided with a second scale along the x-axis direction, the second guide rail is provided with a third scale along the z-axis direction, and the third guide rail is provided with a fourth scale along the y-axis direction.

[0015] Preferably, the impact module further comprises a guide block, which is sleeved and fixed on one end of the lifting screw and located on a side of the electromagnet away from the impact ball, and the guide block abuts against the groove wall of the viewing window.

[0016] Preferably, the operating table is provided with two slide grooves at intervals, and the operating table is fixed with two guide rods at intervals, and the two guide rods are located between the two slide grooves. The fixing module includes a slider, a restraining belt and a card plate. There are two sliders, and the two sliders are slidably set in the two slide grooves respectively. One end of the restraining belt is fixed to one of the sliders, and the other slider is rotatably provided with a limit plate. The restraining belt can be clamped between the limit plate and the other slider. The slider is provided with multiple card slots at intervals along its length direction, and the card plate abuts against the two guide rods, and the card plate is simultaneously clamped in the card slot of one of the sliders and the card slot of the other slider.

[0017] Preferably, the small animal trauma machine also includes a pressure detection component and a controller. The pressure detection component is placed on the operating table and is located below the restraint belt. The animal is placed on the pressure detection component. The pressure detection component is configured to detect the impact force exerted on the animal. The controller is configured to receive detection data from the pressure detection component and control the power on or off of the electromagnet.

[0018] Preferably, one end of the first screw, one end of the second screw, one end of the third screw and the other end of the lifting screw are all provided with a hand wheel.

[0019] Preferably, the small animal trauma machine further comprises a leveling module, which comprises a plurality of sleeves, wherein the plurality of sleeves are fixed to the bottom of the operating table in an array, an adjustment groove is provided at the bottom of the sleeve, and a push rod is screwed into the adjustment groove.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a small animal trauma machine, comprising an operating table, a fixing module, an impact module and an adjustment module. The fixing module is slidably arranged on the operating table, the fixing module is configured to fix the animal, the impact module comprises a limiter, a lifting screw, an electromagnet and an impact ball, the limiter is provided with a first scale along its height direction, a viewing window is provided on one side of the limiter in the height direction, the viewing window passes through the limiter in the height direction, a baffle is installed on the top of the limiter, the lifting screw is vertically arranged and screwed to the baffle, and one end of the baffle extends into the viewing window, the electromagnet is connected to one end of the lifting screw, the impact ball is placed in the viewing window, when the electromagnet is energized, the impact ball is adsorbed on the electromagnet, when the electromagnet is de-energized, the impact ball impacts the animal, the limiter is connected to The adjustment module is configured to drive the limiter to slide along the x-axis, y-axis and z-axis directions; the fixing module is used to fix animals of different sizes to prevent the animals from moving during the collision process; the collision module is used to control the impact force; the adjustment module is used to adjust the position of the collision module in the x-axis, y-axis and z-axis directions, so as to adjust the impact part of the animal according to the size of the animal. The small animal trauma machine provided in this embodiment can adjust the impact part of the animal according to the size of the animal, and further, achieve precise collision of various parts of the animal's body to avoid experimental data deviation during collision. In addition, the impact force can be controlled with high repeatability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a small animal trauma machine provided by an embodiment of the utility model;

[0023] Figure 2 This is a partial structural diagram of a small animal trauma machine provided by the embodiment of the utility model. Figure 1 ;

[0024] Figure 3 This is a partial structural diagram of the adjustment module provided in an embodiment of the present utility model;

[0025] Figure 4 This is a partial assembly diagram of the impact module and the adjustment module provided by an embodiment of the present utility model;

[0026] Figure 5 This is a schematic structural diagram of an impact module provided by an embodiment of the present utility model;

[0027] Figure 6 This is a partial structural diagram of a small animal trauma machine provided by the embodiment of the utility model. Figure 2 ;

[0028] Figure 7 This is a structural diagram of a fixing module provided by an embodiment of the present utility model;

[0029] Figure 8This is a partial structural diagram of a fixing module provided by an embodiment of the present utility model;

[0030] Figure 9 It is a structural schematic diagram of the leveling module provided in an embodiment of the present utility model.

[0031] In the picture:

[0032] 1. Operating table; 10. Support seat; 11. Slide; 12. Guide rod; 121. Elastic member; 2. Fixing module; 21. Slider; 211. Slot; 22. Tie belt; 23. Card; 231. First plate; 232. Second plate; 24. Limit plate; 25. Screw; 3. Impact module; 31. Limit member; 311. Viewing window; 312. First scale; 32. Lifting screw; 33. Electromagnet; 34. Impact ball; 35. Baffle; 36. Guide block; 4. Adjustment module; 40. Second scale; 50. Third scale; 60. Fourth scale; 41. First screw; 42. First guide rail; 43. First slider; 44. Second screw; 45. Second guide rail; 46. Second slider; 47. Third screw; 48. Third slider; 49. Third guide rail; 5. Pressure detection part; 6. Controller; 7. Leveling module; 71. Sleeve; 72. Push rod; 73. Anti-slip pad. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0034] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] This embodiment provides a small animal trauma machine that can adjust the animal impact part according to the body size of different animals. Further, it can achieve precise impact on various parts of the animal's body, avoiding experimental data deviation during impact. In addition, it can control the impact force and has high repeatability.

[0038] Specifically, see Figures 1-9 The present embodiment provides a small animal trauma machine including an operating table 1, a fixing module 2, an impact module 3 and an adjustment module 4, wherein the fixing module 2 is slidably arranged on the operating table 1, and is used to fix animals of different sizes to prevent the animals from moving during the impact process. The impact module 3 can impact the animal and can also control the impact force. The adjustment module 4 is arranged on the operating table 1 and is used to adjust the position of the impact module 3 in the x-axis direction, the y-axis direction and the z-axis direction, so as to adjust the impact part of the animal according to the size of different animals.

[0039] Further, see Figure 4 and Figure 5 The impact module 3 includes a limiter 31, a lifting screw 32, an electromagnet 33 and an impact ball 34, wherein the lifting screw 32 is screwed to the limiter 31, and the height of the lifting screw 32 can be adjusted by screwing the lifting screw 32. The electromagnet 33 is connected to one end of the lifting screw 32. When the electromagnet 33 is energized, the impact ball 34 is adsorbed on the electromagnet 33. When the electromagnet 33 is de-energized, the impact ball 34 immediately separates from the electromagnet 33 and impacts the animal.

[0040] Preferably, in order to grasp the height of the lifting screw 32, and then grasp the impact height of the impact ball 34, thereby controlling the impact force and improving repeatability. In this embodiment, a viewing window 311 is set on one side of the height direction of the limiter 31, and the viewing window 311 passes through the limiter 31 along the height direction, that is, the top and bottom of the limiter 31 are both connected to the outside world. Further, the lifting screw 32 is set vertically, and one end of the lifting screw 32 extends into the viewing window 311 and rises and falls in the viewing window 311. Further, the limiter 31 is provided with a first scale 312 along its height direction, so that after the lifting screw 32 is lifted and lowered and the electromagnet 33 is energized, the position of the impact ball 34 at this time can be recorded through the first scale 312. In this embodiment, the state of the impact ball 34 can be directly observed by setting the viewing window 311, and the repeatability of the experiment can be improved by setting the first scale 312. Optionally, in this embodiment, the cross-sectional shape of each point in the height direction of the viewing window 311 is semicircular, and two first scales 312 are provided on the limiter 31 , and the two first scales 312 are respectively provided on both sides of the viewing window 311 to record the position of the impact ball 34 .

[0041] Adaptively, a baffle 35 is installed on the top of the limiting member 31 . The baffle 35 can block the viewing window 311 , and the lifting screw 32 is screwed to the baffle 35 .

[0042] Optionally, a handwheel is provided at the other end of the lifting screw 32 for easy rotation.

[0043] Further preferably, the impact module 3 also includes a guide block 36, which is mounted on and fixed to one end of the lifting screw 32. The guide block 36 has three circumferentially spaced abutment ends, each of which abuts against the groove wall of the viewing window 311. When the lifting screw 32 drives the electromagnet 33 to move up and down, the guide block 36 can maintain the stability of the electromagnet 33. In addition, to avoid affecting the adhesion or detachment of the impact ball 34 to the electromagnet 33, the guide block 36 is located on the side of the electromagnet 33 facing away from the impact ball 34.

[0044] The adjustment module 4 includes a first adjustment unit, a second adjustment unit and a third adjustment unit. The first adjustment unit is installed on the operating table 1, the second adjustment unit is slidably connected to the first adjustment unit, the third adjustment unit is slidably connected to the second adjustment unit, and the limit member 31 is connected to the third adjustment unit. The first adjustment unit is configured to drive the second adjustment unit to slide along the x-axis direction, the second adjustment unit is configured to drive the third adjustment unit to slide along the z-axis direction, and the third adjustment unit is configured to drive the limit member 31 to slide along the y-axis direction.

[0045] Specifically, see Figure 2-Figure 4The first adjustment unit includes a first screw 41 mounted on the operating table 1 and a first guide rail 42 arranged along the x-axis direction. The first screw 41 is arranged along the x-axis direction and is rotatably arranged on the first guide rail 42. The second adjustment unit includes a first slider 43 screwed to the first screw 41, a second screw 44, and a second guide rail 45 arranged along the z-axis direction. The second screw 44 is arranged along the z-axis direction, the second guide rail 45 is connected to the first slider 43, and the second screw 44 is rotatably arranged on the second guide rail 45. The first slider 43 is clamped on the first guide rail 42 at two opposite sides along the x-axis direction to ensure the accurate movement of the first slider 43. The third adjustment unit includes a second slider 46 screwed to the second screw 44, a third screw 47, a third slider 48 screwed to the third screw 47, and a third guide rail 49 arranged along the y-axis direction, wherein the second slider 46 is clamped on the second guide rail 45 on two opposite sides along the z-axis direction to ensure the precise movement of the second slider 46, the third screw 47 is arranged along the y-axis direction, the third guide rail 49 is connected to the second slider 46, the third screw 47 is rotatably arranged on the third guide rail 49, the third slider 48 is clamped on the third guide rail 49 on two opposite sides along the y-axis direction to ensure the precise movement of the third slider 48, and the limit member 31 is connected to the third slider 48.

[0046] Preferably, a support base 10 is provided on the operating table 1, the first guide rail 42 is connected to the support base 10 by bolts, the second guide rail 45 is connected to the first slider 43 by bolts, the third guide rail 49 is connected to the second slider 46 by bolts, and the limit member 31 is also connected to the third slider 48 by bolts, and the connection strength is relatively large.

[0047] Through the above arrangement, the first screw 41 is rotated, and the first slider 43 screwed to the first screw 41 slides in the x-axis direction along the first guide rail 42, thereby driving the second guide rail 45 connected to the first slider 43 and the second screw 44 connected to the second guide rail 45 to slide in the x-axis direction. The second screw 44 is rotated, and the second slider 46 screwed to the second screw 44 slides in the z-axis direction along the second guide rail 45, thereby driving the third guide rail 49 connected to the second slider 46, the third screw 47 connected to the third guide rail 49, and the third slider 48 screwed to the third screw 47 to slide in the z-axis direction. The third screw 47 is rotated, and the third slider 48 screwed to the third screw 47 slides in the y-axis direction along the third guide rail 49, thereby driving the limit member 31 connected to the third slider 48 to slide in the y-axis direction.

[0048] In this embodiment, a second scale 40 is set along the x-axis on the first guide rail 42, a third scale 50 is set along the z-axis on the second guide rail 45, and a fourth scale 60 is set along the y-axis on the third guide rail 49 to facilitate precise positioning.

[0049] Preferably, the two ends of the first screw 41 are rotatably connected to the side of the first guide rail 42 close to the first slider 43 through a chuck, and the two ends of the first screw 41 are respectively limited in the chucks connected to the two ends of the first guide rail 42 to avoid its axial movement, the two ends of the second screw 44 are rotatably connected to the side of the second guide rail 45 close to the second slider 46 through a chuck, and the two ends of the second screw 44 are respectively limited in the chucks connected to the two ends of the second guide rail 45 to avoid its axial movement, and the two ends of the third screw 47 are rotatably connected to the side of the third guide rail 49 close to the third slider 48 through a chuck, and the two ends of the third screw 47 are respectively limited in the chucks connected to the two ends of the third guide rail 49 to avoid its axial movement.

[0050] Further preferably, one end of the first screw rod 41 , one end of the second screw rod 44 , and one end of the third screw rod 47 are all provided with hand wheels to facilitate corresponding screwing.

[0051] Specifically, see Figure 2 、 Figure 6 and Figure 7 Two slide grooves 11 are spaced apart on the operating table 1, and the sliding arrangement of the fixed module 2 is achieved through the two slide grooves 11. Two guide rods 12 are fixedly disposed on the operating table 1 at intervals, and both guide rods 12 are located between the two slide grooves 11. Furthermore, an elastic member 121 is sleeved on the guide rod 12. The size of the head of the guide rod 12 is larger than the size of the remaining area, so that the elastic member 121 is limited between the head of the guide rod 12 and the operating table 1. Preferably, the slide grooves 11 are arranged along the x-axis direction, the y-axis direction, or the z-axis direction.

[0052] See also Figure 6-Figure 8 The fixing module 2 includes a slider 21, a restraint belt 22 and a card plate 23. Specifically, there are two sliders 21, and the two sliders 21 are respectively slidably set in the two slide grooves 11. The restraint belt 22 is limited on the two sliders 21. The animal can be fixed by the restraint belt 22 to prevent the animal from moving during the collision. The slider 21 is provided with a plurality of card slots 211 at intervals along its length direction. The card plate 23 includes a first plate 231 and a second plate 232 that are connected and arranged in an L shape, wherein the first plate 231 can squeeze and compress the two elastic members 121 upward, and the second plate 232 can be simultaneously clamped in the card slot 211 of one slider 21 and the card slot 211 of the other slider 21, so as to limit the two sliders 21 through the guide rod 12, the elastic member 121 and the card plate 23.

[0053] Furthermore, one end of the restraint strap 22 is fixedly connected to one of the sliders 21, while a stop plate 24 is rotatably mounted on the other slider 21. Specifically, the stop plate 24 and the other slider 21 are screwed together in sequence by screws 25. By turning the screws 25 clockwise, the stop plate 24 can rotate about the screws 25, clamping the restraint strap 22 between the stop plate 24 and the other slider 21. By turning the screws 25 counterclockwise, the stop plate 24 is pressed against the other slider 21, tightening the restraint strap 22. This arrangement allows the restraint space formed by the restraint strap 22 to be adjusted to facilitate the restraint of animals of different sizes.

[0054] Preferably, this embodiment further includes a pressure detection member 5, which is placed on the operating table 1 and moves with the movement of the position of the slider 21 so that it is always located below the restraint belt 22. During the experiment, the animal is placed above the pressure detection member 5 to detect the magnitude of the impact force applied to the animal.

[0055] The small animal trauma machine provided in this embodiment also includes a controller 6 installed on the operating table 1, and the pressure detection component 5 is connected to the controller 6. The controller 6 is configured to receive detection data from the pressure detection component 5, so as to further accurately measure the impact force and energy received by the animal. The controller 6 is also configured to control the electromagnet 33 to be powered on or off.

[0056] See also Figure 1 and Figure 9 The small animal trauma machine provided in this embodiment also includes a leveling module 7. The leveling module 7 includes multiple sleeves 71. The multiple sleeves 71 are fixed to the bottom of the operating table 1 in an array. The bottom of the sleeve 71 is provided with an adjustment groove. A push rod 72 is screwed into the adjustment groove. By rotating the push rod 72, the push rod 72 moves up and down along the sleeve 71, so that the operating table 1 can be quickly leveled.

[0057] Preferably, an anti-slip pad 73 is installed at one end of the top rod 72 away from the operating table 1 to increase the friction at the bottom of the top rod 72 to prevent it from shifting during the collision.

[0058] The process of performing an impact experiment on a small animal trauma machine provided in this embodiment includes the following steps:

[0059] To secure the animal: Slide the card plate 23 upward to disengage the second plate 232 from the two card slots 211. The first plate 231 presses the elastic member 121 upward, then slide the two sliders 21 so that the sliders 21 drive the restraint 22 to move to a suitable position. Then release the card plate 23. The elastic member 121 returns to its original state and drives the second plate 232 to slide downward to re-engage with the two card slots 211. Then, screw the screw 25 clockwise to loosen the limit plate 24 to loosen the restraint 22. Rotate the limit plate 24 to place the animal between the pressure test piece and the restraint 22. Pull the restraint 22 with force. Then screw the screw 25 counterclockwise to tighten the limit plate 24 to secure the animal.

[0060] Adjusting the position: rotating the first screw 41 drives the limiter 31 to slide in the x-axis direction, rotating the second screw 44 drives the limiter 31 to slide in the z-axis direction, rotating the third screw 47 drives the limiter 31 to slide in the y-axis direction, and in this process, accurately measuring the position through the second scale 40, the third scale 50 and the fourth scale 60;

[0061] Impact: The lifting screw 32 is rotated, and the lifting screw 32 drives the electromagnet 33 to move to a suitable height. Then, the electromagnet 33 is energized through the controller 6, so that the impact ball 34 is adsorbed on the electromagnet 33. The falling height of the impact ball 34 is quickly obtained through the first scale 312. Then, the electromagnet 33 is de-energized through the controller 6, and the impact ball 34 falls downward to the designated part of the animal, thereby achieving precise impact on the designated part.

[0062] The small animal trauma machine provided in this embodiment can adjust the impact part of the animal according to the body size of different animals, achieve precise impact on various parts of the animal's body, avoid experimental data deviation during impact, and in addition, can control the impact force with high repeatability.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A small animal trauma machine, characterized in that: include: Operating table (1); a fixing module (2), the fixing module (2) being slidably disposed on the operating platform (1), and the fixing module (2) being configured to fix an animal; An impact module (3) includes a limiting member (31), a lifting screw (32), an electromagnet (33) and an impact ball (34); the limiting member (31) is provided with a first scale (312) along its height direction; a viewing window (311) is provided on one side of the limiting member (31) in the height direction; the viewing window (311) passes through the limiting member (31) in the height direction; a baffle (35) is installed on the top of the limiting member (31) The lifting screw (32) is vertically arranged and screwed to the baffle (35), and one end thereof extends into the viewing window (311). The electromagnet (33) is connected to one end of the lifting screw (32). The impact ball (34) is placed in the viewing window (311). When the electromagnet (33) is energized, the impact ball (34) is adsorbed on the electromagnet (33). When the electromagnet (33) is de-energized, the impact ball (34) hits the animal. An adjustment module (4), the limiting member (31) is connected to the adjustment module (4), and the adjustment module (4) is configured to drive the limiting member (31) to slide along the x-axis direction, the y-axis direction, and the z-axis direction.

2. A small animal trauma machine according to claim 1, characterized in that: The adjustment module (4) includes a first adjustment unit, a second adjustment unit and a third adjustment unit, wherein the first adjustment unit is installed on the operating table (1), the second adjustment unit is slidably connected to the first adjustment unit, the third adjustment unit is slidably connected to the second adjustment unit, the limiting member (31) is connected to the third adjustment unit, the first adjustment unit is configured to drive the second adjustment unit to slide along the x-axis direction, the second adjustment unit is configured to drive the third adjustment unit to slide along the z-axis direction, and the third adjustment unit is configured to drive the limiting member (31) to slide along the y-axis direction.

3. A small animal trauma machine according to claim 2, characterized in that: The first adjusting unit comprises a first screw (41) mounted on the operating table (1), the first screw (41) being arranged along the x-axis direction; the second adjusting unit comprises a first slider (43) screwed to the first screw (41) and a second screw (44) connected to the first slider (43), the second screw (44) being arranged along the z-axis direction; the third adjusting unit comprises a second slider (46) screwed to the second screw (44), a third screw (47) connected to the second slider (46), and a third slider (48) screwed to the third screw (47), the third screw (47) being arranged along the y-axis direction, and the limiting member (31) being connected to the third slider (48).

4. A small animal trauma machine according to claim 3, characterized in that: The first adjusting unit further comprises a first guide rail (42) arranged along the x-axis direction, the first screw rod (41) is rotatably arranged on the first guide rail (42), and the first slider (43) is clamped on the first guide rail (42) on two opposite sides along the x-axis direction. The second adjusting unit further comprises a second guide rail (45) arranged along the z-axis direction, the second guide rail (45) is connected to the first slider (43), the second screw rod (44) is rotatably arranged on the second guide rail (45), and the second slider (46) is clamped on the second guide rail (45) on two opposite sides along the z-axis direction. The third adjusting unit further comprises a third guide rail (49) arranged along the y-axis direction, the third guide rail (49) is connected to the second slider (46), the third screw rod (47) is rotatably arranged on the third guide rail (49), and the third slider (48) is clamped on the third guide rail (49) on two opposite sides along the y-axis direction.

5. A small animal trauma machine according to claim 4, characterized in that: The first guide rail (42) is provided with a second scale (40) along the x-axis direction, the second guide rail (45) is provided with a third scale (50) along the z-axis direction, and the third guide rail (49) is provided with a fourth scale (60) along the y-axis direction.

6. A small animal trauma machine according to claim 1, characterized in that: The impact module (3) further comprises a guide block (36), which is sleeved and fixed on one end of the lifting screw (32) and is located on the side of the electromagnet (33) facing away from the impact ball (34), and the guide block (36) abuts against the groove wall of the viewing window (311).

7. A small animal trauma machine according to claim 1, characterized in that: The operating table (1) is provided with two slide grooves (11) at intervals, and the operating table (1) is fixed with two guide rods (12) at intervals, and the two guide rods (12) are both located between the two slide grooves (11). The fixing module (2) includes a slider (21), a restraining belt (22) and a card plate (23). The sliders (21) are provided with two, and the two sliders (21) are respectively slidably arranged in the two slide grooves (11), and one end of the restraining belt (22) is fixed to one of the sliders (21). The other slider (21) is rotatably provided with a limit plate (24), the restraining belt (22) can be clamped between the limit plate (24) and the other slider (21), the slider (21) is provided with a plurality of slots (211) at intervals along its length direction, the card plate (23) abuts against the two guide rods (12), and the card plate (23) is simultaneously clamped in the slot (211) of one of the sliders (21) and the slot (211) of the other slider (21).

8. A small animal trauma machine according to claim 7, characterized in that: The small animal trauma machine further comprises a pressure detection component (5) and a controller (6), wherein the pressure detection component (5) is placed on the operating table (1) and is located below the restraint belt (22), and the animal is placed on the pressure detection component (5). The pressure detection component (5) is configured to detect the impact force exerted on the animal, and the controller (6) is configured to receive detection data from the pressure detection component (5) and control the electromagnet (33) to be energized or de-energized.

9. A small animal trauma machine according to claim 3, characterized in that: One end of the first screw (41), one end of the second screw (44), one end of the third screw (47) and the other end of the lifting screw (32) are all provided with hand wheels.

10. A small animal trauma machine according to any one of claims 1 to 9, characterized in that: The small animal trauma machine further comprises a leveling module (7), wherein the leveling module (7) comprises a plurality of sleeves (71), wherein the plurality of sleeves (71) are fixedly connected to the bottom of the operating table (1) in an array, and an adjustment groove is provided at the bottom of the sleeve (71), wherein a top rod (72) is screwed into the adjustment groove.