Multi-position synchronous clamping device for cerebral ischemia model construction

Abstract

The invention relates to the technical field of biomedical engineering, and discloses a multi-position synchronous clamping device for cerebral ischemia model construction.The multi-position synchronous clamping device comprises a base, a supporting rod is fixedly installed on the base, a supporting frame is fixedly connected to the upper side of the supporting rod, a clamping assembly is arranged in the supporting frame, and a lifting table is arranged on the upper side of the base; a lifting assembly is arranged on the lower side of the lifting table, a template is arranged on the upper side of the lifting table, a mounting assembly is arranged in the template, a head fixing assembly and a body limiting assembly are arranged on the upper side of the template, and the head fixing assembly is arranged on the right left side of the body limiting assembly. By adopting the technical scheme that gear meshing transmission is combined with pressure monitoring, a motor drives a half gear to drive a clamping plate to synchronously and reversely rotate to achieve multi-position blood vessel clamping, a pressure sensor feeds back data in real time, and the defects that the operation efficiency is low, blood vessels are prone to being damaged, and experiment repeatability is poor are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of biomedical engineering, in particular to a multi-position synchronous clamping device for constructing a cerebral ischemia model. Background Art

[0002] In the field of cerebral ischemic disease research, building a reliable animal model is a key link in exploring the pathogenesis of the disease and evaluating treatment options.

[0003] Traditional cerebral ischemia models are constructed using a multi-position synchronous clamping device, which is mainly composed of a manual clamping clamp array, a fixed bracket and a simple adjustment mechanism. The manual clamping clamp is operated by the lever principle, the fixed bracket is used to stabilize the device and position the animal, and the adjustment mechanism is mostly a screw-nut structure for fine-tuning the clamping position. During operation, the operator manually controls multiple clamps to clamp the target blood vessels sequentially or simultaneously, simulating cerebral ischemia by controlling the clamping time.

[0004] However, traditional devices mostly use single-channel manual clamping forceps, which are held by the operator under a microscope to complete blood vessel clamping. Due to the lack of a synchronous operation mechanism, if multiple blood vessels need to be clamped, they need to be processed one by one, which takes a long time to operate, and it is difficult to keep the clamping time and force consistent for different blood vessels. At the same time, manual operation is easily affected by factors such as the operator's experience and hand stability. After long-term operation, hand shaking will cause the clamping position to shift or the force to be too large, causing blood vessel rupture or excessive damage. In addition, the traditional wire harness bundling, fixed clamp clamping or splint limiting methods have cumbersome operation processes. Taking wire harness bundling as an example, the animal's limbs and body need to be wrapped and knotted separately. The adjustment process is time-consuming and it is difficult to quickly adapt to animals of different sizes and types. When the experimental subjects are switched from rats to mice, the binding method and strength need to be readjusted, which consumes a lot of time and cost and affects the efficiency of the experiment. If the harness is too tight, it will hinder the blood circulation of the animal and cause tissue necrosis; if it is too loose, it cannot effectively restrict the animal's activities, causing the animal to struggle during the experiment, affecting the accuracy of the vascular clamping operation, and even causing blood vessel tearing. The clamping strength of the clamp and the splint is also difficult to control accurately. Excessive local pressure can easily cause problems such as skin compression and limb paralysis of the animal, which not only increases the pain of the animal, but also interferes with the accuracy of the experimental results. At the same time, most of the devices are customized and cannot be replaced modularly or assembled quickly. When facing different experimental needs, the device needs to be repurchased or modified, which is costly and time-consuming. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a multi-position synchronous clamping device for constructing a cerebral ischemia model, which solves the problems of low operating efficiency, easy damage to blood vessels, poor experimental repeatability, time-consuming template installation and disassembly, cumbersome operation, difficulty in precise positioning, easy shaking that affects experimental operations and easy harm to experimental animals, poor fixation effect, and low operating efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-position synchronous clamping device for constructing a cerebral ischemia model, comprising a base, a support rod fixedly installed on the upper side of the base, a support frame fixedly connected to the upper side of the support rod, a clamping assembly arranged inside the support frame, a lifting platform arranged on the upper side of the base, a lifting assembly arranged on the lower side of the lifting platform, a template arranged on the upper side of the lifting platform, a mounting assembly arranged inside the template, a head fixing assembly and a body limiting assembly arranged on the upper side of the template, the head fixing assembly being arranged on the left side of the body limiting assembly, a slider arranged inside the template, a slide groove opened inside the template, a rotating shaft rotatably connected to the upper side of the slider, an L-shaped plate arranged on the upper side of the rotating shaft, and a limb fixing assembly arranged on the L-shaped plate;

[0007] The clamping assembly includes a fixing seat, which is fixedly connected to the front side of the support frame. Clamping plate 1 and clamping plate 2 are provided inside the fixing seat. Half gear 1 is fixedly connected to the upper side of clamping plate 1, and half gear 2 is fixedly connected to the upper side of clamping plate 2. A motor is fixedly installed on the left side of the support frame, and a rotating shaft is fixedly connected to the output end of the motor. The outer side of the rotating shaft d is fixedly connected to half gear 1, and a pressure sensor is fixedly installed on the outer wall of clamping plate 1.

[0008] Preferably, the lifting assembly includes a cylinder, which is fixedly connected to the upper side of the base, the telescopic end of the cylinder is fixedly connected to a support plate, the upper side of the support plate is fixedly connected to a connecting block, the connecting block is fixedly connected to the lower side of the lifting platform, the four inner corners of the support plate are slidably connected to guide rods, and the guide rods are fixedly connected to the upper side of the base.

[0009] Preferably, the mounting assembly includes a spring, which is fixedly connected to the inside of the template, a clamping block is fixedly connected to the side of the spring away from the template, a pull plate is fixedly connected to the upper side of the clamping block, a sliding groove is provided inside the template, a clamping seat is fixedly connected to the upper side of the lifting platform, and a clamping slot is provided inside the clamping seat.

[0010] Preferably, the head fixing assembly includes a fixing frame, which is fixedly connected to the upper side of the lifting platform, and the inner sides of the fixing frame are threadedly connected with rotating rods, the outer side of the rotating rods is fixedly connected with a turntable, and the inner side of the rotating rods is rotatably connected to a limiting soft plate.

[0011] Preferably, the body limiting component includes an elastic strap, which is fixedly connected to the template, a clamp is fixedly connected to the side of the elastic strap away from the template, and a hook is fixedly connected to the upper side of the template.

[0012] Preferably, the limb fixing assembly includes a micro cylinder, which is fixedly mounted on an L-shaped plate, the telescopic end of the micro cylinder is fixedly connected to arc plate one, the L-shaped plate is fixedly connected to arc plate two, the left side of arc plate two is fixedly connected to a fixed tube, the interior of the fixed tube is slidably connected to a telescopic rod, the left side of the telescopic rod is fixedly connected to the right side of arc plate one, the lower side of arc plate one is fixedly connected to a limiting block, a limiting groove is provided inside the L-shaped plate, and the limiting block is slidably connected to the inside of the limiting groove.

[0013] Preferably, the clamping block is slidably connected to the inside of the clamping slot, and the pulling plate is slidably connected to the inside of the sliding slot.

[0014] Preferably, the half gear 1 is meshed with the half gear 2, and the clamping plate 1 and the clamping plate 2 are both rotatably connected to the inside of the fixing seat.

[0015] Preferably, the slider is slidably connected to the inside of the slide groove, and the L-shaped plate is slidably connected to the upper side of the template.

[0016] Preferably, a controller is fixedly mounted on the upper side of the base, and the controller is electrically connected to the motor, the pressure sensor, the cylinder and the micro cylinder.

[0017] The present invention provides a multi-position synchronous clamping device for constructing a cerebral ischemia model. It has the following beneficial effects:

[0018] 1. The present invention adopts a clamping assembly technology solution that combines gear meshing transmission with pressure monitoring. The motor drives the half gear to drive the clamping plate to rotate synchronously in the opposite direction to achieve multi-position blood vessel clamping. The pressure sensor provides real-time feedback data. Compared with the existing single-channel manual clamping technology with uncontrollable clamping force, this technology solves the shortcomings of low operating efficiency, easy damage to blood vessels, and poor experimental repeatability.

[0019] 2. The present invention adopts a spring-clip type installation component technical solution, which pushes the card block into the card slot of the card seat through the spring to realize the rapid fixation of the template, and can be disassembled by pulling the pull plate, thereby achieving the technical effect of rapid installation and disassembly of the template. Compared with the technical solution in the prior art that requires the use of tools or complex operations to install and fix components, it solves the shortcomings of time-consuming installation and disassembly and cumbersome operation.

[0020] 3. The present invention adopts a technical solution of a lifting assembly consisting of a cylinder and a guide rod. The telescopic end of the cylinder drives the support plate to adjust the height of the lifting platform, and the guide rod ensures smooth lifting, thereby achieving the purpose of accurately adjusting the height of the device. Compared with the technical solutions in the prior art with low height adjustment accuracy and poor stability, this solution solves the shortcomings of difficulty in accurate positioning and easy shaking that affects experimental operations.

[0021] 4. The present invention utilizes a threaded drive combined with a flexible material for head fixation, an elastic strap and hook for body positioning, and a slidable, adjustable, cylinder-driven limb fixation solution. By using a turntable to drive a rotating rod to move the limiter plate for precise force control, the elastic strap adaptively conforms to the torso, and the L-shaped plate in conjunction with the cylinder to flexibly clamp the limbs, the invention achieves the technical effects of precise fixation, injury avoidance, and adaptability to animals of different sizes. Compared to existing solutions for head fixation, which suffer from difficult and easily damaged force control, body fixation with poor adaptability, and limb fixation with complex and unstable operation, this solution addresses shortcomings such as harm to experimental animals, poor fixation effectiveness, and low operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 is a schematic diagram of a lifting assembly of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the head fixing assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the limb fixation assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the card slot structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the installation assembly structure of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the clamping assembly of the present invention;

[0030] Figure 9 It is a schematic diagram of the internal structure of the fixing seat of the present invention.

[0031] Among them, 1. Base; 2. Lifting platform; 3. Support rod; 4. Support frame; 5. Clamping assembly; 51. Motor; 52. Rotating shaft; 53. Fixed seat; 54. Clamping plate 1; 55. Clamping plate 2; 56. Pressure sensor; 57. Half gear 1; 58. Half gear 2; 6. Lifting assembly; 61. Cylinder; 62. Support plate; 63. Guide rod; 64. Connecting block; 7. Mounting assembly; 71. Spring; 72. Block; 73. Slot; 74. Block; 75. Pull plate; 76. Sliding slot ;8. Head fixing assembly;81. Fixing frame;82. Rotating rod;83. Turntable;84. Limiting soft board;9. Limb fixing assembly;91. Micro cylinder;92. Arc plate one;93. Arc plate two;94. Fixing tube;95. Telescopic rod;96. Limiting block;97. Limiting slot;10. Body limiting assembly;101. Elastic strap;102. Hook;103. Card head;11. Template;13. L-shaped plate;14. Slider;15. Slide;16. Rotating shaft;17. Controller. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Please see the attached Figure 1 , Attachment Figure 6 and attached Figure 7 , an embodiment of the present invention provides a multi-position synchronous clamping device for constructing a cerebral ischemia model, comprising a base 1, a support rod 3 is fixedly mounted on the top of the base 1, a support frame 4 is fixedly connected to the upper side of the support rod 3, a clamping assembly 5 is arranged inside the support frame 4, a lifting platform 2 is arranged on the upper side of the base 1, a lifting assembly 6 is arranged on the lower side of the lifting platform 2, a template 11 is arranged on the upper side of the lifting platform 2, a mounting assembly 7 is arranged inside the template 11, the mounting assembly 7 comprises a spring 71, the spring 71 is fixedly connected to the inside of the template 11, a clamping block 72 is fixedly connected to the side of the spring 71 away from the template 11, a pull plate 75 is fixedly connected to the upper side of the clamping block 72, a sliding groove 76 is provided inside the template 11, a clamping seat 74 is fixedly connected to the upper side of the lifting platform 2, a clamping slot 73 is provided inside the clamping seat 74, the clamping block 72 is slidably connected to the inside of the clamping slot 73, and the pull plate 75 is slidably connected to the inside of the sliding groove 76;

[0034] Specifically, the elastic thrust generated by the spring 71 in the installation component 7 is first used to push the block 72 to accurately embed into the slot 73 of the holder 74. The template 11 can be firmly and quickly fixed on the lifting platform 2 in just a few seconds. This snap-on design greatly improves the installation efficiency. When the experiment is over or the template 11 needs to be replaced, the operator only needs to pull the pull plate 75 to make the pull plate 75 slide in the sliding groove 76, and then compress the spring 71. The block 72 will then be disengaged from the slot 73, and the template 11 can be easily disassembled. The entire process does not require the use of any tools, and the operation is convenient and efficient.

[0035] Please see the attached Figure 1 and attached Figure 2 The lifting assembly 6 includes a cylinder 61, which is fixedly connected to the upper side of the base 1. The telescopic end of the cylinder 61 is fixedly connected to a support plate 62. The upper side of the support plate 62 is fixedly connected to a connecting block 64. The connecting block 64 is fixedly connected to the lower side of the lifting platform 2. The four inner corners of the support plate 62 are slidably connected to guide rods 63, and the guide rods 63 are fixedly connected to the upper side of the base 1.

[0036] Specifically, after completing the installation of the template 11, the height of the lifting platform 2 needs to be adjusted according to the experimental requirements to ensure that the animal fixation area accurately corresponds to the blood vessel clamping position of the clamping component 5. At this time, the lifting component 6 comes into play, and the telescopic end of the cylinder 61 drives the support plate 62 to move in the vertical direction, thereby realizing the adjustment of the height of the lifting platform 2. During the lifting process, the guide rods 63 at the four corners of the support plate 62 play a key stabilizing role. They are fixedly connected to the base 1 to provide precise guidance for the support plate 62, effectively avoiding shaking or deviation of the lifting platform 2 during movement, ensuring the accuracy and stability of the height adjustment, and enabling the animal fixation area on the template 11 to be accurately aligned with the blood vessel clamping position of the clamping component 5, laying the foundation for subsequent experimental operations.

[0037] Please see the attached Figure 1 -Attached Figure 5, a head fixing component 8 and a body limiting component 10 are provided on the upper side of the template 11, the head fixing component 8 is provided on the left side of the body limiting component 10, a slider 14 is provided inside the template 11, a slide groove 15 is opened inside the template 11, the upper side of the slider 14 is rotatably connected to the rotating shaft 16, the upper side of the rotating shaft 16 is provided with an L-shaped plate 13, and the L-shaped plate 13 is provided with a limb fixing component 9, the head fixing component 8 includes a fixed frame 81, the fixed frame 81 is fixedly connected to the upper side of the lifting platform 2, the inner sides of the fixed frame 81 are threadedly connected to the rotating rod 82, the outer side of the rotating rod 82 is fixedly connected to the turntable 83, and the inner side of the rotating rod 82 is rotatably connected to the limiting soft plate 84, the body limiting component 10 includes an elastic strap 101, the elastic strap 101 is fixedly connected to the template 11, and the side of the elastic strap 101 away from the template 11 is fixedly connected to the clamping head 103, the template 11 The upper side is fixedly connected with a hook 102; the limb fixing assembly 9 includes a micro cylinder 91, which is fixedly mounted on the L-shaped plate 13, the telescopic end of the micro cylinder 91 is fixedly connected to the arc plate 1 92, the arc plate 2 93 is fixedly connected to the L-shaped plate 13, the left side of the arc plate 2 93 is fixedly connected to a fixed cylinder 94, the interior of the fixed cylinder 94 is slidably connected with a telescopic rod 95, the left side of the telescopic rod 95 is fixedly connected to the right side of the arc plate 1 92, the lower side of the arc plate 1 92 is fixedly connected to a limiting block 96, a limiting groove 97 is provided inside the L-shaped plate 13, the limiting block 96 is slidably connected to the inside of the limiting groove 97, the slider 14 is slidably connected to the inside of the slide groove 15, the L-shaped plate 13 is slidably connected to the upper side of the template 11, and a controller 17 is fixedly mounted on the upper side of the base 1, and the controller 17 is electrically connected to the motor 51, the pressure sensor 56, the cylinder 61 and the micro cylinder 91;

[0038] Specifically, after completing the installation and height adjustment of the device, the animal fixing link is entered. To fix the animal's head, the turntable 83 of the head fixing assembly 8 is rotated, and the turntable 83 drives the rotating rod 82 to rotate. The rotating rod 82 drives the limiting soft plate 84 slowly inward through threaded transmission. During this process, the operator can fine-tune the moving distance of the limiting soft plate 84 according to the size and shape of the animal's head by accurately rotating the turntable 83 and utilizing the high-precision characteristics of the threaded transmission, thereby achieving precise control of the clamping force of the animal's head. The limiting soft plate 84 is made of flexible material. While firmly fixing the animal's head, it can effectively disperse pressure to avoid compressive damage to the animal's head, thereby ensuring the safety and comfort of the animal during the experiment. After completing the fixation of the animal's head, use the body limiting component 10 to fix the animal's torso, and buckle the clip 103 of the elastic strap 101 into the hook 102 on the upper side of the template 11. The elastic strap 101 itself has good elasticity and can be adaptively stretched according to the body curves of animals of different body sizes. It uses its tension to fit closely to the animal's torso, thereby effectively fixing the animal's torso, limiting the large-scale movement of the animal's torso, and ensuring the animal's safety during the experiment. The L-shaped plate 13 is pushed and flexibly slides in the slide groove 15 inside the template 11 through the slider 14 at its bottom. At the same time, the angle of the L-shaped plate 13 is fine-tuned by the rotating shaft 16, so that the limb fixing component 9 is accurately adjusted to the appropriate position so that it is accurately aligned with the animal's limbs. Then the micro-cylinder 91 is started, and the telescopic end of the micro-cylinder 91 pushes the arc plate 1 92 to move toward the arc plate 2 93. Under the action of the guiding structure composed of the telescopic rod 95 and the fixed cylinder 94, the arc plate 1 92 smoothly approaches the arc plate 2 93 to clamp the animal's limbs. At the same time, the limit block 96 on the lower side of the arc plate 1 92 cooperates with the limit groove 97 inside the L-shaped plate 13 to effectively prevent the clamping arm from deviating during the clamping process, further ensuring the stability of the limb clamping and ensuring that the animal's limbs will not slide or break free during the experiment.

[0039] Please see the attached Figure 8 and attached Figure 9 The clamping assembly 5 includes a fixed seat 53, which is fixedly connected to the front side of the support frame 4. A clamping plate 1 54 and a clamping plate 2 55 are provided inside the fixed seat 53. A half gear 1 57 is fixedly connected to the upper side of the clamping plate 1 54, and a half gear 2 58 is fixedly connected to the upper side of the clamping plate 2 55. A motor 51 is fixedly installed on the left side of the support frame 4. The output end of the motor 51 is fixedly connected to the rotating shaft 52, and the outer side of the rotating shaft 52d is fixedly connected to the half gear 1 57. A pressure sensor 56 is fixedly installed on the outer wall of the clamping plate 1 54, and the half gear 1 57 is meshed with the half gear 2 58. The clamping plate 1 54 and the clamping plate 2 55 are both rotatably connected to the inside of the fixed seat 53;

[0040] Specifically, after the animal is fully fixed, the key blood vessel clamping step is entered. The motor 51 is started, and the output end of the motor 51 drives the rotating shaft 52 to rotate. The half gear 1 57 fixedly connected to the outer side of the rotating shaft 52 rotates accordingly. Since the half gear 1 57 and the half gear 2 58 are meshed with each other, the rotation of the half gear 1 57 drives the half gear 2 58 to rotate in the opposite direction, thereby causing the clamping plate 1 54 and the clamping plate 2 55 fixedly connected to the half gear 1 57 and the half gear 2 58 respectively to rotate synchronously in the opposite direction in the fixing seat 53. Through the coordinated work of multiple fixing seats 53, multi-position closed clamping of the target blood vessel is achieved, and multiple blood vessels can be operated at the same time. The experimental efficiency is greatly improved. During the process of clamping the blood vessel, the pressure sensor 56 installed on the outer wall of the clamping plate 54 plays a vital role. It can monitor the clamping force in real time and feed back the collected pressure data to the controller 17 in real time. The controller 17 intelligently regulates the operation of the motor 51 according to the preset pressure threshold. When the clamping force approaches or exceeds the safety threshold, the controller 17 will promptly issue an instruction to reduce the speed of the motor 51 or stop the operation of the motor 51 to avoid irreversible damage to the blood vessel due to excessive clamping force, ensure the safety and accuracy of the blood vessel clamping operation, and provide reliable protection for the smooth progress of the cerebral ischemia model construction experiment.

[0041] Working Principle: When using this device, the spring 71 pushes the clamping block 72 into the clamping slot 73 of the clamping seat 74, quickly fixing the template 11 to the lifting platform 2. To disassemble, the pull plate 75 is pulled to compress the spring 71 to release the lock. Subsequently, when the height of the lifting platform 2 needs to be adjusted, the cylinder 61, with its telescopic end, drives the support plate 62, thereby adjusting the height of the lifting platform 2. The guide rod 63 ensures a smooth lifting process, so that the animal fixing area on the template 11 is accurately aligned with the blood vessel clamping position of the clamping assembly 5.

[0042] When the animal needs to be fixed, the turntable 83 of the head fixing assembly 8 is rotated to drive the rotating rod 82 to rotate, so that the limiting soft plate 84 moves inward, and the clamping force on the animal's head is accurately adjusted through the threaded transmission. The flexible material of the limiting soft plate 84 can avoid compressing and damaging the animal's head. Then the clamp head 103 of the elastic bandage 101 is buckled into the hook 102, and the tension of the elastic bandage 101 is used to fit the body curve of animals of different body sizes to achieve effective fixation of the animal's torso. Then push the L-shaped plate 13 to make it slide in the slide groove 15 through the slider 14, and use the rotating shaft 16 to fine-tune the angle to adjust the limb fixing assembly 9 to the appropriate position to align with the animal's limbs; then start the micro-cylinder 91, and its telescopic end pushes the arc plate 1 92 to move toward the arc plate 2 93. The telescopic rod 95 and the fixing cylinder 94 play a guiding role to achieve clamping of the limbs. At the same time, the limit block 96 and the limit groove 97 prevent the clamping arm from deviating, thereby ensuring the stability of the clamping;

[0043] When it is necessary to clamp a blood vessel, the motor 51 is started, and the rotating shaft 52 at its output end drives the half gear 1 57 to rotate. Since the half gear 1 57 is meshed with the half gear 2 58, the clamping plate 1 54 and the clamping plate 2 55 rotate synchronously in opposite directions in the fixing seat 53, and multiple fixed seats 53 are used to achieve multi-position closed clamping of the target blood vessel. During this process, the pressure sensor 56 on the outer wall of the clamping plate 1 54 monitors the clamping force in real time and feeds back the data to the controller 17 to avoid damage to the blood vessel due to excessive clamping force.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-position synchronous clamping device for constructing a cerebral ischemia model, comprising a base (1), characterized in that: A support rod (3) is fixedly mounted on the upper side of the base (1), a support frame (4) is fixedly connected to the upper side of the support rod (3), a clamping assembly (5) is provided inside the support frame (4), a lifting platform (2) is provided on the upper side of the base (1), a lifting assembly (6) is provided on the lower side of the lifting platform (2), a template (11) is provided on the upper side of the lifting platform (2), a mounting assembly (7) is provided inside the template (11), and a clamping assembly (5) is provided on the upper side of the template (11). A head fixing component (8) and a body limiting component (10) are provided, wherein the head fixing component (8) is provided on the left side of the body limiting component (10), a slider (14) is provided inside the template (11), a slide groove (15) is provided inside the template (11), the upper side of the slider (14) is rotatably connected to a rotating shaft (16), an L-shaped plate (13) is provided on the upper side of the rotating shaft (16), and a limb fixing component (9) is provided on the L-shaped plate (13); The clamping assembly (5) includes a fixing seat (53), the fixing seat (53) is fixedly connected to the front side of the support frame (4), a clamping plate 1 (54) and a clamping plate 2 (55) are provided inside the fixing seat (53), the upper side of the clamping plate 1 (54) is fixedly connected to a half gear 1 (57), the upper side of the clamping plate 2 (55) is fixedly connected to a half gear 2 (58), a motor (51) is fixedly installed on the left side of the support frame (4), the output end of the motor (51) is fixedly connected to a rotating shaft (52), the outer side of the rotating shaft (52) d is fixedly connected to the half gear 1 (57), and a pressure sensor (56) is fixedly installed on the outer wall of the clamping plate 1 (54).

2. A multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The lifting assembly (6) includes a cylinder (61), the cylinder (61) is fixedly connected to the upper side of the base (1), the telescopic end of the cylinder (61) is fixedly connected to a support plate (62), the upper side of the support plate (62) is fixedly connected to a connecting block (64), the connecting block (64) is fixedly connected to the lower side of the lifting platform (2), the four inner corners of the support plate (62) are slidably connected to guide rods (63), and the guide rods (63) are fixedly connected to the upper side of the base (1).

3. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The mounting assembly (7) includes a spring (71), the spring (71) is fixedly connected to the inside of the template (11), a clamping block (72) is fixedly connected to the side of the spring (71) away from the template (11), a pull plate (75) is fixedly connected to the upper side of the clamping block (72), a sliding groove (76) is provided inside the template (11), a clamping seat (74) is fixedly connected to the upper side of the lifting platform (2), and a clamping slot (73) is provided inside the clamping seat (74).

4. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The head fixing assembly (8) includes a fixing frame (81), the fixing frame (81) is fixedly connected to the upper side of the lifting platform (2), the inner sides of the fixing frame (81) are threadedly connected to rotating rods (82), the outer side of the rotating rod (82) is fixedly connected to a turntable (83), and the inner side of the rotating rod (82) is rotatably connected to a limiting soft plate (84).

5. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The body limiting assembly (10) comprises an elastic band (101), the elastic band (101) being fixedly connected to the template (11), a clamping head (103) being fixedly connected to the side of the elastic band (101) away from the template (11), and a hook (102) being fixedly connected to the upper side of the template (11).

6. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The limb fixing assembly (9) includes a micro cylinder (91), the micro cylinder (91) is fixedly mounted on the L-shaped plate (13), the telescopic end of the micro cylinder (91) is fixedly connected to the arc plate 1 (92), the arc plate 2 (93) is fixedly connected to the L-shaped plate (13), the left side of the arc plate 2 (93) is fixedly connected to the fixed cylinder (94), the interior of the fixed cylinder (94) is slidably connected to a telescopic rod (95), the left side of the telescopic rod (95) is fixedly connected to the right side of the arc plate 1 (92), the lower side of the arc plate 1 (92) is fixedly connected to a limiting block (96), a limiting groove (97) is provided inside the L-shaped plate (13), and the limiting block (96) is slidably connected inside the limiting groove (97).

7. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 3, characterized in that: The clamping block (72) is slidably connected to the inside of the clamping slot (73), and the pulling plate (75) is slidably connected to the inside of the sliding slot (76).

8. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The half gear 1 (57) is meshed with the half gear 2 (58), and the clamping plate 1 (54) and the clamping plate 2 (55) are both rotatably connected to the interior of the fixed seat (53).

9. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 1, characterized in that: The slider (14) is slidably connected to the inside of the slide groove (15), and the L-shaped plate (13) is slidably connected to the upper side of the template (11).

10. The multi-position synchronous clamping device for constructing a cerebral ischemia model according to claim 6, characterized in that: A controller (17) is fixedly mounted on the upper side of the base (1), and the controller (17) is electrically connected to the motor (51), the pressure sensor (56), the cylinder (61) and the micro cylinder (91).

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