Fixed operation table for intraoral experiment of rats and mice

Abstract

The utility model relates to the field of experiment auxiliary equipment, and discloses a rat and mouse intraoral experiment fixing operation table which comprises a table top used for fixing an experiment mouse; the head fixing part is mounted on the table top; the head fixing part comprises a first positioning piece and a second positioning piece, the first positioning piece and the second positioning piece are both installed in the head fixing part, and the second positioning piece is arranged to be close to or away from the first positioning piece and used for clamping the head of the laboratory mouse. According to the utility model, the head of the experimental mouse is clamped and fixed, so that the accuracy of an experiment is improved, the turning part and the head fixing part are combined for use, so that the direction of the head of the experimental mouse can be flexibly adjusted, the convenience of experimental operation is increased, and different areas in the oral cavity of the experimental mouse can be conveniently observed; the four-limb fixing part can be flexibly moved according to needs so as to fix laboratory mice of different sizes, and meanwhile illumination is provided and a clear visual field in the mouth is obtained.

Description

Technical Field

[0001] The utility model relates to the field of experimental auxiliary equipment, in particular to a fixed operating table for intraoral experiments of mice and rats. Background Art

[0002] Oral experiments on mice usually involve the study of the structure, function and diseases of the oral cavity of mice. Such experiments are of great significance for understanding the feeding and digestion process of mice, as well as the pathogenesis and treatment of oral diseases. When conducting oral experiments on mice, the experimenter needs to ensure compliance with ethical standards and animal welfare principles to minimize harm to mice during the experiment. At the same time, the experimenter also needs to have professional knowledge and skills to ensure the accuracy and reliability of the experiment.

[0003] Before conducting intraoral experiments on mice and rats, the mice need to be anesthetized for subsequent oral examination and operation. Microscopes or other tools are used to observe the oral structure of mice, including teeth, tongue, cheek pouches, etc.

[0004] During the experiment, the head of the anesthetized experimental mouse needs to be held and fixed by the experimenter, and the inside of its mouth needs to be observed while the head is fixed. When the experimenter holds the mouse's head, the head may shake due to hand tremors or fatigue, which will seriously affect the accuracy and clarity of observation of the internal structure of the mouth. Fixing the head and observing the inside of the mouth increase the complexity and difficulty of the operation. The existing operating table is limited to fixing the mouse's head at a certain position on the operating table. After fixation, it is difficult to adjust the position of the mouse's head and mouth, which is also inconvenient for the experimenter to perform experimental operations. Utility Model Content

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A fixed operating table for intraoral experiments of mice and rats, comprising:

[0007] Table, used to fix the experimental mice;

[0008] A head fixing part, mounted on the table;

[0009] The head fixing part includes a first positioning member and a second positioning member, both of which are installed in the head fixing part, and the second positioning member is configured to be close to or away from the first positioning member, so as to clamp the head of the experimental mouse;

[0010] A rotating part, mounted on the table;

[0011] The turning part is installed in the rotating part and is configured to rotate along the central axis of the rotating part;

[0012] The head fixing part is connected to the turning part, and the head fixing part is arranged to rotate along the horizontal axis of the turning part, so as to adjust the direction of the head of the experimental mouse.

[0013] Also includes:

[0014] A plurality of limb fixing parts are mounted on the table;

[0015] A plurality of fixing parts, mounted on the limb fixing part, used for fixing the limbs of the experimental mouse on the limb fixing part;

[0016] A plurality of first screw rods are installed on the table and connected to the limb fixing parts to control the movement of the limb fixing parts.

[0017] A plurality of movable grooves are provided on the top of the table top, the limb fixing parts are connected in the movable grooves, and one end of the first screw rod passes through the movable groove and is connected to the first knob.

[0018] The table top comprises:

[0019] The base is installed below the table;

[0020] A plurality of adjusting rods have one end connected to the base through a damping shaft and the other end connected to the table top.

[0021] The head fixing part also includes:

[0022] Inner ring plate, installed on the inner ring of the head fixing part;

[0023] A first magnetic block is mounted on the inner ring of the head fixing part;

[0024] A plurality of second magnetic blocks are mounted on the outer ring of the inner ring plate and connected to the first magnetic blocks;

[0025] A telescopic rod, mounted on the inner ring plate, one end of which is connected to the second positioning member, and is used to control the movement of the second positioning member, wherein the first positioning member is mounted on the inner ring of the inner ring plate;

[0026] The second screw rod is installed on the inner ring plate, one end of which is connected to the telescopic rod. The second screw rod is used to control the movement of the telescopic rod on the inner ring plate.

[0027] The inner ring of the inner ring plate is provided with a fixing groove, the telescopic rod is installed in the fixing groove, and one end of the second screw rod passes through the fixing groove and is connected to the second knob.

[0028] The rotating part comprises:

[0029] A rotating seat, wherein a rotating groove is formed on the bottom wall of the rotating part, the rotating seat is installed in the rotating groove, and the top end of the rotating seat is connected to the flip part to provide rotating support for the flip part;

[0030] A gear is installed at the bottom of the rotating seat. A control groove is provided on the inner wall of the rotating groove. A rack is connected in the control groove. The rack is connected to the gear;

[0031] The third screw rod has one end connected to the rack, and the other end passes through the control slot and extends to the outside of the rotating part and is connected to the third knob.

[0032] The turning part comprises:

[0033] A rotating seat, wherein the inner wall of the flip portion is provided with a rotating groove, and the rotating seat is connected in the rotating groove to provide rotating support for the head fixing portion;

[0034] The latch is installed on the flip part. A plurality of sockets are provided on the surface of the rotating seat. One end of the latch passes through the rotating groove and is installed in one of the sockets to fix the rotating seat.

[0035] Also includes:

[0036] An observation part connected to one side of the table top and configured to move horizontally along the one side of the table top;

[0037] A gooseneck tube, one end of which is mounted on the observation portion and is configured to be freely bendable;

[0038] A display unit, mounted on the top of the gooseneck tube, for observing the experimental mice;

[0039] The lighting unit is installed on the display unit and is used for providing lighting.

[0040] Also includes:

[0041] A tongue-pulling part is mounted on the inner ring plate, a tongue-pulling rod is mounted on the tongue-pulling part, and a tongue-pulling clip is mounted on one end of the tongue-pulling rod away from the tongue-pulling part, for fixing the tongue of the experimental mouse;

[0042] The opening part is installed on the inner ring plate. Two tooth-covering rods are installed on the opening part through bearings. The ends of the two tooth-covering rods away from the opening part are both installed with tooth-covering rings for adjusting the size of the oral opening of the experimental mouse.

[0043] The utility model provides a fixed operating table for intraoral experiments on mice and rats. Compared with the prior art, it has the following beneficial effects:

[0044] 1. The positioning parts 1 and 2 of the head fixing part can clamp and fix the head of the experimental mouse, ensuring that the head will not move during the experiment, thereby improving the accuracy of the experiment. The combined use of the flipping part and the head fixing part allows the direction of the head of the experimental mouse to be flexibly adjusted, increasing the convenience of the experimental operation. The angle and position of the head of the experimental mouse can be easily adjusted according to the experimental needs, and it is also convenient to observe different areas in the oral cavity of the experimental mouse.

[0045] 2. The limb fixing parts can be flexibly moved as needed to fix experimental mice of different sizes, assist in opening the mouth and pulling the tongue, while providing lighting and obtaining a clear view inside the mouth, thus assisting intraoral operations on mice. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0047] Figure 2 The present invention is a three-dimensional structural schematic diagram of the rotating part, the turning part, the head fixing part, the tongue pulling part and the opening part.

[0048] Figure 3 It is a schematic diagram of the cross-sectional structure of the rotating part, the turning part and the head fixing part proposed in the utility model.

[0049] Figure 4 The utility model is a schematic diagram of the top structure of the table top, limb fixing parts, rotating part, flipping part and head fixing part.

[0050] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0051] Figure 6 This is a structural schematic diagram of the rotating seat, gear, rack, third screw rod and third knob proposed by the utility model.

[0052] Figure 7 This is a schematic structural diagram of the rotating seat and the latch proposed in the utility model.

[0053] The reference numerals in the figure are:

[0054] 1. table top; 101. adjustment rod; 102. base;

[0055] 2. Limb fixing part; 201. Fixing piece; 202. First screw rod; 203. First knob; 204. Moving slot;

[0056] 3. Rotating part; 301. Rotating seat; 302. Rotating slot; 303. Gear; 304. Rack; 305. Third screw rod; 306. Third knob;

[0057] 4. Turning part; 401. Rotating seat; 402. Rotating slot; 403. Latch; 404. Socket;

[0058] 5. Head fixing part; 501. Positioning member 1; 502. Positioning member 2; 503. Telescopic rod; 504. Fixing groove; 505. Second screw rod; 506. Second knob; 507. Inner ring plate; 508. First magnetic block; 509. Second magnetic block;

[0059] 6. tongue pulling part; 601. tongue pulling rod; 602. tongue pulling clamp;

[0060] 7. opening; 701. tooth ring; 702. tooth rod;

[0061] 8. Observation unit; 801. Gooseneck tube; 802. Display unit; 803. Lighting unit. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0063] Reference Figure 1-Figure 7 A mouse intraoral experimental fixing operation table includes: a table top 1 for fixing the experimental mouse; a head fixing part 5, which is installed on the table top 1; the head fixing part 5 includes a positioning member 1 501 and a positioning member 2 502, both of which are installed in the head fixing part 5, and the positioning member 2 502 is set to move closer to or away from the positioning member 1 501, so as to clamp the head of the experimental mouse. The design of the table top 1 provides a stable fixing platform for the experimental mouse, making the experimental operation more accurate. The positioning member 1 501 and the positioning member 2 502 of the head fixing part 5 can clamp and fix the head of the experimental mouse, ensuring that the head will not be moved during the experiment. The turning part 4 is installed in the rotating part 3 and is arranged to rotate along the central axis of the rotating part 3; the head fixing part 5 is connected with the turning part 4, and the head fixing part 5 is arranged to rotate along the horizontal axis of the turning part 4, so as to adjust the direction of the head of the experimental mouse. The combined use of the turning part 4 and the head fixing part 5 allows the direction of the head of the experimental mouse to be flexibly adjusted, which greatly increases the convenience of the experimental operation. The angle and position of the head of the experimental mouse can be easily adjusted according to the experimental needs, and orthodontic, endodontic and restorative surgery experiments can be performed on the oral cavity of mice and rats to ensure the smoothness of the experimental process and the survival of the experimental subjects.

[0064] Reference Figure 1 and Figure 4, multiple limb fixing parts 2 are installed on the table 1; multiple fixing pieces 201 are installed on the limb fixing parts 2, which are used to fix the limbs of the experimental mouse on the limb fixing parts 2. The fixing pieces 201 adopt elastic bands and can also adopt binding ropes. The design of the limb fixing parts 2 and the fixing pieces 201 can fix the limbs of the experimental mouse to prevent them from moving around during the experiment, thereby ensuring the smooth progress of the experiment; multiple first screw rods 202 are installed on the table 1 and threadedly connected with the limb fixing parts 2 to control the movement of the limb fixing parts 2. Multiple moving grooves 204 are opened on the top of the table 1. The limb fixing parts 2 are connected in the moving grooves 204. One end of the first screw rod 202 passes through the moving groove 204 and is connected to the first knob 203. The setting of the first screw rod 202 and the moving groove 204 allows the limb fixing part 2 to be flexibly moved as needed to adapt to experimental mice of different sizes.

[0065] Reference Figure 1 The table 1 includes: a base 102, which is installed below the table 1; a plurality of adjustment rods 101, one end of which is connected to the base 102 through a damping shaft, and the other end is connected to the table 1. The combination of the base 102 and the adjustment rods 101 allows the height and angle of the entire table 1 to be adjusted, adapting to the height and operating habits of different operators and improving the comfort of operation.

[0066] Reference Figure 2 and Figure 3 The head fixing part 5 also includes: an inner ring plate 507, mounted on the inner ring of the head fixing part 5; a first magnetic block 508, mounted on the inner ring of the head fixing part 5; a plurality of second magnetic blocks 509, mounted on the outer ring of the inner ring plate 507, and connected to the first magnetic block 508; a telescopic rod 503, mounted on the inner ring plate 507, one end of which is connected to the second positioning member 502, and is used to control the movement of the second positioning member 502, and the positioning member 1 501 is mounted on the inner ring of the inner ring plate 507; a second screw rod 505, mounted on the inner ring On the ring plate 507, one end is threadedly connected to the telescopic rod 503, and the second screw rod 505 is used to control the movement of the telescopic rod 503 on the inner ring plate 507. The inner circle of the inner ring plate 507 is provided with a fixing groove 504, and the telescopic rod 503 is installed in the fixing groove 504. One end of the second screw rod 505 passes through the fixing groove 504 and is connected to the second knob 506. The design of the telescopic rod 503 and the second screw rod 505 enables the positioning member 2 502 to accurately control the moving distance, thereby achieving accurate clamping of the head of the experimental mouse.

[0067] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6The rotating part 3 includes: a rotating seat 301, a rotating groove 302 is provided on the bottom wall of the rotating part 3, the rotating seat 301 is installed in the rotating groove 302, the top of the rotating seat 301 is connected to the flipping part 4, the rotating seat 301 of the rotating part 3 provides a stable rotation support for the flipping part 4, and the gear 303 is installed at the bottom of the rotating seat 301, and a control groove is provided on the inner wall of the rotating groove 302, and a rack 304 is connected in the control groove, and the rack 304 is connected to the gear 303; a third screw rod 305, one end of which is threadedly connected to the rack 304, and the other end passes through the control groove and extends to the outside of the rotating part 3 and is connected to the third knob 306, the rotation of the third screw rod 305 can drive the rack 304 to move linearly in the control groove, and the movement of the rack 304 can control the rotation of the gear 303, thereby driving the flipping part 4 to rotate and adjust.

[0068] Reference Figure 2 , Figure 3 and Figure 7 The flip part 4 includes: a rotating seat 401, a rotating groove 402 is opened on the inner wall of the flip part 4, and the rotating seat 401 is connected in the rotating groove 402 to provide a rotating support for the head fixing part 5; a latch 403 is installed on the flip part 4, and a plurality of sockets 404 are opened on the surface of the rotating seat 401. One end of the latch 403 passes through the rotating groove 402 and is installed in one of the sockets 404 to fix the rotating seat 401. The rotating seat 401 of the flip part 4 provides a rotating support for the head fixing part 5. The design of the latch 403 enables the rotating seat 401 to be fixed at different angles, thereby further increasing the flexibility of the experimental operation.

[0069] Reference Figure 1 The observation part 8 is connected to one side of the table 1 and is configured to move horizontally along one side of the table 1; a gooseneck tube 801 is installed on the observation part 8 at one end and is configured to be freely bendable; a display unit 802 is installed at the top of the gooseneck tube 801 and is used to observe experimental mice; a lighting unit 803 is installed on the display unit 802 and is used to provide lighting. The design of the observation part 8 allows the operator to observe the experimental mice on one side of the table 1. The free bending property of the gooseneck tube 801 allows the display unit 802 to be adjusted to the best observation angle. The display unit 802 adopts an optical microscope and can also adopt an electron microscope. The lighting unit 803 adopts a lighting lamp and can also adopt a shadowless lamp. When conducting intraoral experiments on mice, it can be suitable for experimental subjects of more sizes and provide a clearer field of view, thereby achieving a better auxiliary experimental effect.

[0070] Reference Figure 1 and Figure 2The tongue-pulling portion 6 is mounted on the inner ring plate 507, and a tongue-pulling rod 601 is mounted on the tongue-pulling portion 6. A tongue-pulling clamp 602 is mounted on the end of the tongue-pulling rod 601 away from the tongue-pulling portion 6 for fixing the tongue of the experimental mouse; the opening portion 7 is mounted on the inner ring plate 507, and two tooth-setting rods 702 are mounted on the opening portion 7 through a bearing. A tooth-setting ring 701 is mounted on the end of the two tooth-setting rods 702 away from the opening portion 7 for adjusting the size of the oral opening of the experimental mouse. The tongue-pulling rod 601 and the tongue-pulling clamp 602 of the tongue-pulling portion 6 can fix the tongue of the experimental mouse to prevent the movement of the tongue during the experiment from affecting the experimental results. The tooth-setting rod 702 and the tooth-setting ring 701 of the opening portion 7 can adjust the size of the oral opening of the experimental mouse, making the experimental operation more convenient and accurate.

[0071] During use, first, the experimental mouse is placed on the table 1, and the head of the experimental mouse is clamped and fixed by the positioning member 1 501 and the positioning member 2 502. The second knob 506 is turned, and the second knob 506 drives the second screw rod 505 to rotate. The second screw rod 505 controls the telescopic rod 503 to move linearly in the fixing groove 504. The positioning member 2 502 can be precisely moved and adjusted by the control of the telescopic rod 503 and the second screw rod 505 to ensure that the head is firmly fixed and will not cause harm to the experimental mouse. Then, the direction and angle of the head of the experimental mouse can be flexibly adjusted by using the flip part 4 and the head fixing part 5. The inner ring plate 507 can be turned to drive the mouse head to rotate around the axis of the head fixing part 5 to achieve the head twisting operation of the mouse head. When the inner ring plate 507 rotates, it will drive multiple second magnetic blocks 509 to move. The first magnetic block 508 is used to adsorb the second magnetic blocks 509 at different positions on the inner ring plate 507, so as to stabilize the position of the inner ring plate 507 after rotation. The rotating part 3 provides rotation support through the rotating seat 301. When the operator rotates the third knob 306 clockwise or counterclockwise, the knob will drive the third screw rod 305 to rotate together. The thread on the third screw rod 305 cooperates with the thread on the rack 304, thereby driving the rack 304 to move smoothly in a linear manner in the control groove. As the rack 304 moves, it will interact with the tooth portion of the gear 303 through its tooth portion, so as to accurately control the rotation angle of the gear 303, so that the control gear 303 drives the rotating seat 301 to rotate. The rotating seat 301 can control the flipping part 4 to rotate on the rotating part 3, and the flipping part 4 can be flexibly adjusted. The flipping part 4 can drive the mouse head to rotate left and right on the table 1, and the left and right areas of the oral cavity of the experimental mouse can be observed. The flipping part 4 provides rotation support through the rotating seat 401. When rotating the head fixing part 5, first pull out the pin 403 from the socket 404 to cancel the fixing restriction of the rotating seat 401, and then rotate the head fixing part 5. At this time, the rotating seat 401 can rotate freely in the rotating slot 402, and the head fixing part 5 drives the experimental mouse head to flip up and down, so that the upper and lower areas of the oral cavity of the experimental mouse can be observed. After the rotation, the pin 403 is reset and inserted into the other sockets 404 on the rotating seat 401, and the head can continue to be fixed. The position of the fixed rotating seat 401 is adjusted to realize the all-round adjustment of the head of the experimental mouse. At the same time, the limb fixing part 2 fixes the limbs of the experimental mouse through the fixing piece 201 to prevent it from moving around during the experiment. The limb fixing part 2 can be moved by the control of the first screw rod 202 and the moving groove 204. Turning the first knob 203 can drive the first screw rod 202 to rotate, and the first screw rod 202 can drive the limb fixing part 2 to move linearly in the moving groove 204 to adapt to experimental mice of different sizes. The observation part 8 is equipped with a gooseneck tube 801, a display unit 802 and a lighting unit 803, which can conveniently observe the reaction and oral condition of the experimental mouse. The free bending characteristics of the gooseneck tube 801 enable the display unit 802 to be adjusted to the best observation angle.The lighting unit 803 provides sufficient lighting conditions. During the experiment, the tongue-pulling rod 601 and the tongue-pulling clamp 602 of the tongue-pulling part 6 are used to fix the tongue of the experimental mouse to prevent it from moving and affecting the experimental results. The tooth-capping rod 702 and the tooth-capping ring 701 of the opening part 7 can adjust the opening size of the experimental mouse's mouth to facilitate intraoral experimental operations.

[0072] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0073] The positioning member 1 501 and the positioning member 2 502 of the head fixing part 5 can clamp and fix the head of the experimental mouse, ensuring that the head will not move during the experiment, thereby improving the accuracy of the experiment. The combined use of the flipping part 4 and the head fixing part 5 allows the direction of the head of the experimental mouse to be flexibly adjusted, increasing the convenience of the experimental operation. The angle and position of the head of the experimental mouse can be easily adjusted according to the experimental needs, and it is also convenient to observe different areas in the oral cavity of the experimental mouse.

[0074] The limb fixing part 2 can be flexibly moved as needed to fix experimental mice of different sizes, assist in opening the mouth and pulling the tongue, and at the same time provide lighting and obtain a clear view inside the mouth, thereby assisting intraoral operations on mice.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixed operating table for intraoral experiments on mice and rats, characterized in that: include: A table (1) for fixing experimental mice; A head fixing part (5) mounted on the table top (1); The head fixing part (5) comprises a first positioning member (501) and a second positioning member (502), wherein the first positioning member (501) and the second positioning member (502) are both installed in the head fixing part (5), and the second positioning member (502) is configured to move closer to or farther from the first positioning member (501) for clamping the head of the experimental mouse; A rotating part (3) mounted on the table (1); The turning part (4) is installed in the rotating part (3) and is configured to rotate along the central axis of the rotating part (3); The head fixing part (5) is connected to the turning part (4), and the head fixing part (5) is arranged to rotate along the horizontal axis of the turning part (4) to adjust the direction of the head of the experimental mouse.

2. The intraoral experimental fixed operating table for mice and rats according to claim 1, characterized in that: Also includes: A plurality of limb fixing parts (2) mounted on the table top (1); A plurality of fixing members (201) are mounted on the limb fixing part (2) and are used to fix the limbs of the experimental mouse on the limb fixing part (2); A plurality of first screw rods (202) are mounted on the table top (1), connected to the limb fixing part (2), and used to control the movement of the limb fixing part (2).

3. The intraoral experimental fixed operation table for mice and rats according to claim 2, characterized in that: A plurality of movable grooves (204) are provided on the top of the table top (1), the limb fixing part (2) is connected in the movable groove (204), and one end of the first screw rod (202) passes through the movable groove (204) and is connected to the first knob (203).

4. The intraoral experimental fixed operation table for mice and rats according to claim 1, characterized in that: The table top (1) comprises: A base (102) is installed below the table (1); A plurality of adjustment rods (101) have one end connected to the base (102) via a damping shaft and the other end connected to the table top (1).

5. The intraoral experimental fixed operation table for mice and rats according to claim 1, characterized in that: The head fixing part (5) further comprises: An inner ring plate (507) mounted on the inner ring of the head fixing portion (5); A first magnetic block (508) is mounted on the inner ring of the head fixing portion (5); A plurality of second magnetic blocks (509) are mounted on the outer ring of the inner ring plate (507) and connected to the first magnetic block (508); A telescopic rod (503) is mounted on the inner ring plate (507), one end of which is connected to the second positioning member (502) and is used to control the movement of the second positioning member (502). The first positioning member (501) is mounted on the inner ring of the inner ring plate (507); The second screw rod (505) is installed on the inner ring plate (507), one end of which is connected to the telescopic rod (503). The second screw rod (505) is used to control the telescopic rod (503) to move on the inner ring plate (507).

6. The intraoral experimental fixed operation table for mice and rats according to claim 5, characterized in that: The inner ring of the inner ring plate (507) is provided with a fixing groove (504), the telescopic rod (503) is installed in the fixing groove (504), and one end of the second screw rod (505) passes through the fixing groove (504) and is connected to a second knob (506).

7. The intraoral experimental fixed operation table for mice and rats according to claim 1, characterized in that: The rotating part (3) comprises: A rotating seat (301), wherein a rotating groove (302) is formed on the bottom wall of the rotating portion (3), the rotating seat (301) is installed in the rotating groove (302), and the top end of the rotating seat (301) is connected to the flip portion (4) to provide rotating support for the flip portion (4); The gear (303) is installed at the bottom of the rotating seat (301). The inner wall of the rotating groove (302) is provided with a control groove. The control groove is connected with a rack (304), and the rack (304) is connected to the gear (303). The third screw rod (305) has one end connected to the rack (304) and the other end passing through the control slot and extending to the outside of the rotating part (3) and connected to a third knob (306).

8. The intraoral experimental fixed operation table for mice and rats according to claim 1, characterized in that: The turning part (4) comprises: A rotating seat (401), wherein the inner wall of the flip portion (4) is provided with a rotating groove (402), and the rotating seat (401) is connected in the rotating groove (402) to provide rotating support for the head fixing portion (5); The latch (403) is mounted on the flip portion (4); a plurality of sockets (404) are provided on the surface of the rotating seat (401); one end of the latch (403) passes through the rotating groove (402) and is mounted in one of the sockets (404) for fixing the rotating seat (401).

9. The intraoral experimental fixed operation table for mice and rats according to claim 1, characterized in that: Also includes: An observation part (8) connected to one side of the table top (1) and configured to move horizontally along one side of the table top (1); A gooseneck tube (801), one end of which is mounted on the observation portion (8) and is configured to be freely bendable; A display unit (802), mounted on the top of the gooseneck tube (801), for observing the experimental mice; The lighting unit (803) is installed on the display unit (802) and is used to provide lighting.

10. The intraoral experimental fixed operation table for mice and rats according to claim 5, characterized in that: Also includes: A tongue-pulling portion (6) is mounted on the inner ring plate (507), a tongue-pulling rod (601) is mounted on the tongue-pulling portion (6), and a tongue-pulling clamp (602) is mounted on one end of the tongue-pulling rod (601) away from the tongue-pulling portion (6) for fixing the tongue of the experimental mouse; The opening portion (7) is mounted on the inner ring plate (507), and two tooth-covering rods (702) are mounted on the opening portion (7) via a bearing. The ends of the two tooth-covering rods (702) away from the opening portion (7) are both mounted with tooth-covering rings (701) for adjusting the size of the oral opening of the experimental mouse.

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