Head restraint device for blood collection from the rat jugular vein

Abstract

The utility model relates to the field of animal blood sampling, especially rat jugular vein blood sampling head fixing device, including bottom plate, rotating plate, moving block one and moving block two, the bottom plate upper end is equipped with mounting bracket, the mounting bracket upper end rotatory installation has rotating plate, the rotating plate upper surface symmetry is equipped with moving block one, the moving block one inside is inserted with the buckle one of flexible material design, the buckle one is arc, moving block one side is equipped with moving plate, the moving plate upper end symmetry is equipped with moving block two, the moving block two upper end is fixed with buckle two. The device can realize the function of the rat body size adaptability adjustment fixed position, is helpful to carotid artery efficient stable blood sampling auxiliary, solves the problem that the existing rat carotid artery blood sampling fixing device is not strong in adaptability, leads to a variety of rat body size not to be effectively fixed, influences blood sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of animal blood collection, and in particular to a head restraint device for collecting blood from the jugular vein of rats. Background Technology

[0002] Fixing the rat is a crucial step in the blood collection process, and its main functions include:

[0003] Preventing struggling: Rats may wriggle violently during blood collection due to pain or tension. Fixing them can reduce their activity, prevent needle slippage or blood vessel damage, and ensure smooth blood collection.

[0004] Improving accuracy: Stable body position helps to accurately locate blood vessels (such as the carotid artery), reduce repeated punctures, and decrease procedural errors and stress in laboratory animals;

[0005] Safety is ensured: to prevent sudden movement of rats that could result in operator bites or accidental injury from instruments, while also reducing additional injuries caused by the animal struggling.

[0006] While existing technologies can effectively immobilize rats during blood collection, they suffer from drawbacks. The limited adaptability of current rat carotid artery blood collection immobilization devices prevents effective immobilization of rats of various sizes, impacting blood collection efficiency. Therefore, we propose a head immobilization device for rat jugular vein blood collection, which solves these problems. Utility Model Content

[0007] The purpose of this invention is to address the problems existing in the background art by proposing a head restraint device for rat jugular vein blood collection.

[0008] The technical solution of this utility model: a head restraint device for rat jugular vein blood collection, including a base plate, a rotating plate, a first movable block and a second movable block. The upper end of the base plate is provided with a mounting frame, and the rotating plate is rotatably mounted on the upper end of the mounting frame. The first movable block is symmetrically arranged on the upper surface of the rotating plate. The first movable block is provided with a slot inside, and a first buckle designed with flexible material is inserted into the slot. The first buckle is arc-shaped. A movable plate is provided on one side of the first movable block. The second movable block is symmetrically arranged on the upper end of the first movable block, and a second buckle is fixed on the upper end of the second movable block.

[0009] When using this device, manually rotate the first latch to open one side, allowing the rat's body to be placed between the arc-shaped moving blocks. Then rotate the first latch back and manually adjust the position of the moving blocks. Due to the damping material, the first latch, after deforming upon insertion into the slot, can restrict the rat's position, preventing it from moving around. Similarly, the position of the moving blocks remains unchanged after they are positioned. Then, place the rat's neck between the second moving blocks and manually push the second moving block to center it. The second latch will then restrict the neck's position (again, the damping material prevents the rat from breaking free). After adjusting the angle of the rotating plate and locking it with the locking knob, you can manually collect blood from the rat's carotid artery from the groove or the area around the groove. This device's structure can be adjusted to fit the rat's body shape, has deformation capabilities, high adaptability, and is highly practical.

[0010] Preferably, a base is fixed to the lower end of the base plate, and a locking knob is provided on one side of the mounting frame. The locking knob is used to lock the rotating shaft between the rotating plate and the mounting frame. The base enhances the stability of the device and prevents the base plate from shaking during operation. The locking knob ensures that the rotating plate will not shift after the angle is fixed, improving the operational accuracy and safety during blood collection.

[0011] Preferably, the rotating plate has a guide rail on its surface, and the guide rail has a damping material inside. The moving block is inserted into the guide rail. The damping material inside the guide rail makes the moving block stable after the position is adjusted, avoiding displacement due to rat struggling or external force, and ensuring a long-lasting and reliable fixation effect.

[0012] Preferably, the upper surface of the rotating plate is provided with a second guide rail, and the second guide rail is provided with a damping material. The moving plate is inserted into the second guide rail. The second guide rail and its damping material keep the moving plate stable after adjustment, avoiding position changes caused by rat twisting during blood collection, and improving the stability and safety of the operation.

[0013] Preferably, the surface of the movable plate is provided with a guide rail three, the guide rail three is provided with a damping material, and a movable block two is inserted into the guide rail two. The damping material of the guide rail three ensures that the movable block two will not loosen after the rat's neck is fixed. Combined with the elastic support of the spring, the rat can be firmly fixed while avoiding excessive pressure that may cause discomfort or injury.

[0014] Preferably, the second buckle has a groove in the middle and the buckle has a semi-circular arc design. The semi-circular arc design and groove structure of the second buckle can better fit the rat's neck, reduce local pressure, and prevent the rat from escaping during blood collection, thereby improving the fixation effect and operation comfort.

[0015] Preferably, the surface of the movable plate is provided with a mounting base, and a spring is fixed between the mounting base and the movable block two. The elastic support of the spring provides the movable block two with buffering capacity when fixing the rat's neck, avoiding rigid compression that could cause discomfort or tissue damage to the rat, while ensuring that the fixation is firm and reliable.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] I. This utility model, through the use of a flexible material-designed arc-shaped buckle and a movable block, can adapt to rats of different sizes, ensuring that their body parts are stably fixed and preventing the rats from struggling during blood collection. The design of the movable block and buckle further secures the rat's neck, improving the accuracy of blood collection.

[0018] II. Based on the first beneficial effect, this device, through the design of flexible buckle 1, adjustable moving blocks 1 and 2, and damping guide rail, achieves efficient and stable fixation of the rat's body and neck, adapting to rats of different sizes and improving the accuracy and safety of blood collection operations. The base and locking knob enhance the stability of the device, while the spring and damping material ensure flexibility and reliability during fixation. The overall structure is simple and practical, easy to operate, and has high adaptability and practicality, suitable for various scenarios such as carotid artery blood collection from laboratory rats.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] Figure 1 This is a three-dimensional perspective view of the present invention from a first angle;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is a two-dimensional perspective view of the present invention.

[0023] Figure 4 This is a side view of the present invention;

[0024] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle.

[0025] Figure label:

[0026] 1. Base plate; 2. Base; 3. Mounting bracket; 4. Rotating plate; 5. Clip 1; 6. Slot; 7. Moving block 1; 8. Guide rail 1; 9. Locking knob; 10. Moving plate; 11. Guide rail 2; 12. Clip 2; 13. Spring; 14. Guide rail 3; 15. Mounting base; 16. Groove; 17. Moving block 2. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] Please see Figures 1-5 As shown, this embodiment is a head restraint device for rat jugular vein blood collection, including a base plate 1, a rotating plate 4, a first movable block 7 and a second movable block 17. The upper end of the base plate 1 is provided with a mounting frame 3, and the rotating plate 4 is rotatably mounted on the upper end of the mounting frame 3. The first movable block 7 is symmetrically provided on the upper surface of the rotating plate 4. The first movable block 7 is provided with a slot 6 inside, and a first buckle 5 made of flexible material is inserted into the slot 6. The first buckle 5 is arc-shaped. The first movable block 7 is provided with a movable plate 10 on one side, and the second movable block 17 is symmetrically provided on the upper end of the movable plate 10. The second movable block 17 is fixed with a second buckle 12 on the upper end.

[0033] When using this device, manually rotate buckle 5 to open one side, allowing the rat's body to be placed between the arc-shaped moving blocks 7. Then rotate buckle 5 back and manually adjust the position of moving blocks 7. Due to the damping material, buckle 5, after deforming upon insertion into slot 6, can restrict the rat's position, preventing it from moving around. Similarly, the position of moving blocks 7 can also be fixed after the position is restricted. Then, place the rat's neck between moving blocks 17 and manually push moving blocks 17 to center it. Buckle 12 will restrict the neck position (again, the damping material prevents the rat from breaking free). After adjusting the angle of rotating plate 4 and locking it with locking knob 9, you can manually collect blood from the rat's carotid artery from groove 16 or the area around groove 16. The structure of this device can be adjusted to fit the shape of the rat, has deformation capability, high adaptability, and high practicality.

[0034] Example 2

[0035] Please see Figures 1-5 As shown, this embodiment, based on embodiment 1, further includes: a base 2 fixed to the lower end of the base plate 1; a locking knob 9 on one side of the mounting bracket 3; the locking knob 9 is used to lock the rotating shaft between the rotating plate 4 and the mounting bracket 3; the base 2 enhances the stability of the device and prevents the base plate 1 from shaking during operation; the locking knob 9 ensures that the rotating plate 4 will not shift after the angle is fixed, improving the operational accuracy and safety during blood collection.

[0036] The rotating plate 4 has a guide rail 8 on its surface. The guide rail 8 has a damping material inside. The moving block 7 is inserted into the guide rail 8. The damping material inside the guide rail 8 makes the moving block 7 stable after the position is adjusted, avoiding displacement due to rat struggle or external force, and ensuring a long-lasting and reliable fixation effect. The buckle 5 is made of a deformable material, but it is not easy to stretch.

[0037] The upper surface of the rotating plate 4 is provided with a guide rail 2 11, and the guide rail 2 11 is provided with a damping material. The moving plate 10 is inserted into the guide rail 2 11. The guide rail 2 11 and its damping material keep the moving plate 10 stable after adjustment, avoiding position changes caused by rat twisting during blood collection, and improving the stability and safety of the operation.

[0038] The surface of the movable plate 10 is provided with a guide rail 3 14, and the inside of the guide rail 3 14 is provided with damping material. The movable block 2 17 is inserted into the guide rail 2 11. The damping material of the guide rail 3 14 ensures that the movable block 2 17 will not loosen after the rat's neck is fixed. Combined with the elastic support of the spring 13, the rat can be firmly fixed while avoiding excessive pressure that may cause discomfort or injury.

[0039] The second buckle 12 has a groove 16 in the middle and the buckle is designed in a semi-circular arc. The semi-circular arc design and groove 16 structure of the second buckle 12 can better fit the rat's neck, reduce local pressure, and prevent the rat from struggling during blood collection, thereby improving the fixation effect and operation comfort.

[0040] The surface of the movable plate 10 is provided with a mounting base 15. A spring 13 is fixed between the mounting base 15 and the movable block 17. The elastic support of the spring 13 enables the movable block 17 to have a buffering capacity when fixing the rat's neck, avoiding rigid compression that could cause discomfort or tissue damage to the rat, while ensuring that the fixation is firm and reliable.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

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