A rat gavage device

Abstract

The utility model discloses a rat gavage device relates to mouse gavage technical field. The utility model discloses a syringe, the side of syringe is provided with the needle tube subassembly of self -adaptation regulation length, the side of needle tube subassembly is provided with the auxiliary assembly of the oral cavity support of rat, the utility model discloses a needle tube subassembly setting can be the long short adjustment use of autonomy, makes needle tube without replacement can adapt the gavage use of rat of different size volume, without carrying the needle tube of remaining size specification not one, and the cooperation of pipe can be connected with the adjusting pipe and constitute the bending needle tube use, further improved the applicability of the device, through the setting auxiliary assembly can be according to the position adjustment of needle tube length, so that without artificial observation can judge gavage insertion to judge whether in place, and through the setting of the lever can support the oral cavity of rat, further avoid the damage of oral cavity tooth of rat to needle tube.

Description

Technical Field

[0001] This utility model relates to the field of rat gavage technology, specifically to a rat gavage device. Background Technology

[0002] The rat gavage administration device is a device used in the medical experimental field to inject drugs into animals and conduct experiments. Medical experimental devices play a very important role in the research and innovation of medical drugs. Traditional rat gavage administration mainly involves artificial fixation and injection into the animal body through a syringe.

[0003] Furthermore, existing rats have different sizes and shapes of needles that need to be installed on the side of the syringe for different applications, which requires multiple sets of needles to be used together. This results in tension storage space and inconvenience in carrying the device. In addition, the depth of gavage insertion is determined by human judgment, which cannot achieve accurate insertion to a fixed depth. Therefore, a rat gavage device is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problem of rat gavage devices, and this invention provides a rat gavage device.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A rat gavage device includes a syringe, a needle assembly with an adaptively adjustable length is provided on the side of the syringe, and an auxiliary component for supporting the rat's oral cavity is provided on the side of the needle assembly.

[0007] The needle assembly includes a connecting block, a connecting tube fixedly installed on the side of the connecting block, an installation block and an adjustment tube inside the connecting tube, a locking block fixedly installed on the lower side of the adjustment tube, and a protective block and a mating tube on the upper side of the adjustment tube.

[0008] The auxiliary components include an adjusting block, a baffle plate fixedly sleeved on the outside of the adjusting block, a lever plate provided on the side of the baffle plate, and a slider, a support cylinder and a lever block provided inside the adjusting block.

[0009] Furthermore, the connecting block is sleeved on the side of the syringe, the mounting block is fixedly installed on the inside of the connecting tube, and the adjusting tube is movably set inside the connecting tube with a portion extending out of the inside of the connecting tube.

[0010] Furthermore, the locking block is threadedly engaged on the inner side of the mounting block, the protective block is threadedly installed on the upper side of the adjusting pipe, and the mating pipe is located on the upper side of the adjusting pipe.

[0011] Furthermore, the connecting tube has equidistant limit grooves on its side, the adjusting block is movably sleeved on the side of the connecting tube, and the lever is tilted and fixedly installed on the side of the barrier plate away from the syringe.

[0012] Furthermore, the inner side of the adjusting block is provided with a sliding groove, the slider is movably installed inside the sliding groove, the fixing rod is fixedly installed on the wall of the sliding groove, the support cylinder is fixedly connected between the side of the slider and the wall of the sliding groove, and a lever is fixedly installed on the lower side of the slider.

[0013] Furthermore, the barrier plate is an elliptical ring plate, the lever is a rectangular plate of elastic material, the slider is snapped into the corresponding limiting groove, the support cylinder is movably sleeved on the side of the fixed rod, the support cylinder is an elastic material cylinder with a continuous "W" shaped cross section, and the lever is a rectangular block of rubber material.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model features a needle assembly that allows for independent length adjustment, enabling the needle to be used for gavage in rats of different sizes without replacement. It eliminates the need to carry other needles of varying sizes. Furthermore, the included fitting tube, along with the connecting tube and adjusting tube, forms a bendable needle, further enhancing the device's versatility. The auxiliary components allow for position adjustment based on needle length, enabling direct observation to determine if the gavage insertion is complete. Additionally, the included lever provides support for the rat's oral cavity, further preventing damage to the needle from the rat's teeth. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a half-sectional structural diagram of the present invention;

[0018] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0019] Figure 4 This is a partial exploded view of the structure of this utility model;

[0020] Figure 5 This is a partial structural explosion and cross-sectional schematic diagram of this utility model.

[0021] Reference numerals: 1. Syringe; 2. Connecting block; 3. Connecting tube; 4. Mounting block; 5. Adjusting tube; 6. Locking block; 7. Protective block; 8. Matching tube; 9. Limiting groove; 10. Adjusting block; 11. Barrier plate; 12. Paddle plate; 13. Slide groove; 14. Sliding block; 15. Fixing rod; 16. Support cylinder; 17. Paddle block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figures 1 to 5 As shown, a rat gavage device includes a syringe 1, which is a commonly used piston injection molding cylinder. A needle tube assembly with an adaptively adjustable length is provided on the side of the syringe 1, and an auxiliary component for supporting the rat's oral cavity is provided on the side of the needle tube assembly.

[0027] Specifically, the needle assembly allows for adjustable lengths to suit different rat sizes, and a curved tube can be added for further adaptation. The auxiliary components allow for adjustment of the needle's position based on the required insertion depth into the rat's oral cavity, manual adjustment of the needle's position, and support and restriction of the rat's oral cavity.

[0028] like Figure 1 , Figure 2 and Figure 4As shown, the needle assembly includes a connecting block 2 sleeved on the side of the syringe 1. The connecting block 2 is a circular block with a U-shaped cylindrical groove on its side. The connecting block 2 can be snapped onto the side of the syringe 1 in different ways, such as threaded installation and locking block 6 installation. A connecting tube 3 is fixedly installed on the side of the connecting block 2. The connecting tube 3 is a hollow cylindrical tube. Mounting blocks 4 are symmetrically fixedly installed at both ends of the inner side of the connecting tube 3. The mounting blocks 4 are circular ring blocks with threads on their inner sides. An adjusting tube 5 is movably arranged inside the connecting tube 3, and part of the adjusting tube 5 extends out of the connecting tube. Inside the pipe 3, the length of the adjusting pipe 5 is greater than that of the connecting pipe 3. The adjusting pipe 5 is a hollow cylindrical pipe with threads on the inner side. A locking block 6 is fixedly installed on the lower side of the adjusting pipe 5 and the locking block 6 is threaded and engaged on the inner side of the mounting block 4. The locking block 6 is a circular ring block with threads on the outer side. A protective block 7 is threaded on the upper side of the adjusting pipe 5. The protective block 7 is a hollow convex-shaped circular block with threads on the side. A mating pipe 8 is provided on the upper side of the adjusting pipe 5. The mating pipe 8 is a hollow convex-shaped curved circular pipe with threads on its side, which can be threaded and mated with the adjusting pipe 5.

[0029] Specifically, when a shorter syringe is needed, the adjusting tube 5 is fully slid into the connecting tube 3, so that the locking block 6 is threadedly engaged with the inner side of the mounting block 4 at the lower position. This is suitable for use with smaller rats via gavage. When a longer syringe is needed, the adjusting tube 5 is fully slid out of the connecting tube 3, so that the locking block 6 is threadedly engaged with the inner side of the mounting block 4 at the upper position. This is suitable for use with larger rats via gavage. In the default state, simply threading the protective block 7 onto the side of the adjusting tube 5 will protect the tube opening. After removing the threaded protective block 7, replacing it with the threaded mating tube 8 and threading it onto the side of the adjusting tube 5 will create a bendable syringe for use.

[0030] like Figure 3 and Figure 5As shown, the auxiliary components include equidistant limiting grooves 9 on the side of the connecting tube 3, the limiting grooves 9 being annular grooves. An adjusting block 10, also an annular block, is movably sleeved on the side of the connecting tube 3. A baffle plate 11, an elliptical annular plate, is fixedly sleeved on the outside of the adjusting block 10. A lever 12, a rectangular plate of elastic material, is fixedly mounted on the side of the baffle plate 11 away from the syringe 1, mirror-image inclined. A sliding groove 13, an "L"-shaped groove, is formed inside the adjusting block 10. The slider 14 is installed and snapped into the corresponding limiting groove 9. The slider 14 is an "L" shaped block. A fixing rod 15 is fixedly installed on the wall of the groove 13, passing through the slider 14. The fixing rod 15 is a cylindrical rod. A support cylinder 16 is fixedly connected between the side of the slider 14 and the wall of the groove 13, and the support cylinder 16 is movably sleeved on the side of the fixing rod 15. The support cylinder 16 is an elastic cylinder with a continuous "W" shaped cross section. A lever 17 is fixedly installed on the lower side of the slider 14. The lever 17 is a rectangular block made of rubber.

[0031] Specifically, by manually moving the lever 17, the slider 14 can slide inside the groove 13. At this time, the slider 14 is constrained by the fixed rod 15, which compresses the support cylinder 16 and deforms it, disengaging it from the position inside the limiting groove 9. This allows the adjusting block 10 to move to the side of the connecting tube 3. By comparing the required gavage depth, the adjusting block 10 is moved to the appropriate position. After releasing the lever 17, the slider 14 is reset and locked in the corresponding limiting groove 9 under the elastic force of the support cylinder 16. The adjusting block 10 is constrained and limited to the side of the connecting tube 3. When the connecting tube 3 and the adjusting tube 5 are inserted into the rat's mouth for gavage, the barrier plate 11 can block the rat's mouth, indicating that the gavage insertion depth is in place. The synchronous lever 12 can also be inserted into the rat's mouth to provide support.

[0032] In summary: The designed needle assembly allows for independent length adjustment, enabling the needle to be used for gavage in rats of different sizes without the need for replacement, eliminating the need to carry other needles of varying sizes. Furthermore, the included fitting tube 8, along with the connecting tube 3 and adjusting tube 5, forms a bending needle, further enhancing the device's applicability. The auxiliary components allow for position adjustment based on needle length, enabling direct assessment of insertion without human observation. Additionally, the included lever 12 provides support for the rat's oral cavity, further preventing damage to the needle from the rat's teeth.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rat gavage device, comprising a syringe (1), wherein the syringe (1) is provided with a needle assembly of adaptively adjustable length on its side, and the needle assembly is provided with an auxiliary component for supporting the rat's oral cavity on its side. characterized in that The needle assembly includes a connecting block (2), a connecting tube (3) is fixedly installed on the side of the connecting block (2), an installation block (4) and an adjusting tube (5) are provided inside the connecting tube (3), a locking block (6) is fixedly installed on the lower side of the adjusting tube (5), and a protective block (7) and a mating tube (8) are provided on the upper side of the adjusting tube (5). The auxiliary component includes an adjustment block (10), a baffle plate (11) is fixedly sleeved on the outside of the adjustment block (10), a lever plate (12) is provided on the side of the baffle plate (11), and a slider (14), a support cylinder (16) and a lever plate (17) are provided inside the adjustment block (10).

2. The device for gavage of rats according to claim 1, characterized in that: The connecting block (2) is sleeved on the side of the syringe (1), the mounting block (4) is fixedly installed on the inside of the connecting tube (3), and the adjusting tube (5) is movably set inside the connecting tube (3) and the adjusting tube (5) extends out of the inside of the connecting tube (3).

3. The rat gavage device according to claim 2, characterized in that: The locking block (6) is threadedly engaged inside the mounting block (4), the protective block (7) is threadedly installed on the upper side of the adjusting pipe (5), and the mating pipe (8) is set on the upper side of the adjusting pipe (5).

4. The device for gavage of rats according to claim 3, characterized in that: The connecting tube (3) has equidistant limiting grooves (9) on its side, the adjusting block (10) is movably sleeved on the side of the connecting tube (3), and the lever (12) is obliquely fixedly installed on the side of the barrier plate (11) away from the syringe (1).

5. The rat gavage device of claim 4, wherein: The inner side of the adjusting block (10) is provided with a sliding groove (13), the slider (14) is movably installed inside the sliding groove (13), the fixing rod (15) is fixedly installed on the wall of the sliding groove (13), the support cylinder (16) is fixedly connected between the side of the slider (14) and the wall of the sliding groove (13), and the lower side of the slider (14) is fixedly installed with a toggle block (17).

6. The rat gavage device of claim 5, wherein: The barrier plate (11) is an elliptical ring plate, the lever plate (12) is a rectangular plate of elastic material, the slider (14) is snapped into the corresponding limiting groove (9) and the support cylinder (16) is movably sleeved on the side of the fixed rod (15). The support cylinder (16) is an elastic cylinder with a continuous "W" shaped cross section and the lever block (17) is a rectangular block of rubber material.

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