Visual small animal lung drug delivery device
The adjustable, visualized small animal lung drug delivery device solves the problem of poor adaptability of fixed structure flareers, achieving precise drug delivery and operational safety, and reducing experimental errors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-31
AI Technical Summary
Existing fixed-structure flaring devices cannot adapt to the oral cavity of small animals of different sizes, leading to drug leakage or difficulty in insertion into the lungs, causing experimental errors and animal injury.
A visual drug delivery device for small animals' lungs was designed, which uses an adjustable and retractable conical flare and a visualization channel. The combination of the flare and the drug delivery channel ensures unobstructed drug delivery and allows for real-time observation of the drug delivery location via a miniature camera module.
It improves the versatility and accuracy of drug delivery devices, reduces operational difficulties and errors, avoids damage to animals, and ensures that drugs are accurately delivered to the lungs.
Smart Images
Figure CN224056137U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to animal experiment appliance technical field, concretely is a visual small animal lung medicine device. BACKGROUND
[0002] In the field of small animal experimental research, pulmonary drug delivery is a key link in simulating human lung disease treatment, drug efficacy evaluation and other experiments. Precise pulmonary drug delivery can effectively control the drug dosage and ensure that the drug plays a role in the specific area of the lung, which plays a decisive role in the accuracy and reliability of the experimental results. Among them, during the pulmonary drug delivery process, the mouthpiece plays an indispensable role; when in use, it is placed in the oral cavity of a small animal, and by expanding the oral cavity and trachea, it creates conditions for the subsequent injection hose to smoothly insert into the lung, ensuring that the drug can be smoothly delivered to the target position of the lung, avoiding drug delivery obstruction or leakage due to poor access during the drug delivery process.
[0003] However, the mouthpiece in the existing drug delivery device mostly adopts a fixed structure, which has the following problems when in use: when facing animals with smaller body types, such as mice and rats, the fixed-size mouthpiece is often too large to closely fit into their narrow oral cavity space, which not only causes the drug to easily leak from the oral cavity gap during delivery, affecting the drug dosage entering the lung and causing experimental data deviation; it may also cause unnecessary compression and damage to the oral cavity of the small animal due to the mismatch between the mouthpiece and the oral cavity. For animals such as guinea pigs and rabbits with slightly larger body types, the fixed-structure mouthpiece cannot fully expand the oral cavity and trachea, making it difficult for the injection hose to smoothly insert.
[0004] To solve the above problems, the inventors of our company have developed a visual small animal lung drug delivery device, which is provided with a visual passage and a drug delivery passage, and is equipped with a conical mouthpiece of adjustable size at the front end, which can be adjusted according to actual needs and can adapt to the oral cavities and tracheas of small animals of different sizes, facilitating smooth pulmonary drug delivery. UTILITY MODEL CONTENTS
[0005] The utility model provides a visual small animal lung drug delivery device, which can solve the technical problem that the existing fixed-structure mouthpiece cannot be adjusted according to the oral cavities of different types of small animals.
[0006] The present application provides the following technical scheme:
[0007] A visual small animal lung drug delivery device, comprising a body and a mouthpiece detachably arranged at the front end of the body, the body being provided with a visual passage and a drug delivery passage; the mouthpiece is a telescopic bellows structure and is conical in shape as a whole; the mouthpiece is provided with a first passage and a second passage penetrating along its length direction, the first passage being in communication with the visual passage, and the second passage being in communication with the drug delivery passage.
[0008] Beneficial effects:
[0009] 1. By setting the expander as a telescopic bellows structure and in a tapered shape, in actual use, the operator can accurately control the expansion degree and overall length of the expander according to different types of small animals, greatly improving the versatility of the drug delivery device for different experimental animals, and reducing the operation difficulty and experimental errors caused by the mismatch of the expander. At the same time, due to the adjustability, flexibility and high adaptability, it can effectively avoid damage to the oral cavity and trachea of small animals caused by excessive expansion.
[0010] 2. By detachably setting the expander, the expander can be adjusted according to the oral cavity of the animal before being installed on the body, making the operation more convenient. By setting the second channel on the expander and connecting it with the drug delivery channel, the smoothness of the drug delivery channel is ensured, and the drug can be accurately and efficiently delivered to the lungs.
[0011] 3. By setting the visual channel, it is convenient to install the camera, so that the internal situation of the oral cavity, trachea and lungs of the small animal can be clearly obtained during drug delivery, and the operator can also observe the insertion position of the injection hose and the delivery process of the drug in real time, so as to accurately judge the drug delivery position and avoid the problem of inaccurate drug delivery caused by blind operation, thereby significantly improving the accuracy of drug delivery.
[0012] Further, the body includes a handle with a hollow structure and a connecting rod for connecting the handle and the expander, and the visual channel is arranged through the connecting rod. The side wall and the bottom wall of the handle are provided with through holes, and the injection hose is arranged through the through holes, and the through holes constitute the drug delivery channel.
[0013] Beneficial effects: The handle is convenient to hold, and the injection hose is arranged through the through holes in the side wall and the bottom wall of the handle. Such layout makes the operation more convenient and convenient when connecting the syringe and pushing the drug injection.
[0014] Further, the large end of the expander is provided with a connecting channel, the upper end of the connecting channel is connected with the connecting rod, and the lower end of the connecting channel is communicated with the first channel.
[0015] Beneficial effects: The connecting channel is convenient for installing the expander on the connecting rod, and after connection, the visual channel on the connecting rod is directly aligned with the first channel, which is convenient for installing the visual device.
[0016] Further, a wire is arranged in the visual channel, one end of the wire is arranged out of the first channel of the expander, and a micro camera module is connected at the end of the wire. The other end of the wire is arranged out of the top of the visual channel and extends to the outside of the handle, and a display device is connected at the end of the wire.
[0017] Beneficial effect: the lead wire connects the miniature camera module and the display device, and a stable circuit is constructed to ensure clear and continuous image transmission, which helps precise operation; in addition, the lead wire is arranged in the visual channel and can be protected from external damage, thereby prolonging the service life.
[0018] Further, the second channel is arranged at one side of the connecting channel, and the bottom of the second channel is communicated with the first channel; the injection hose is extended into the second channel from the through hole at the bottom of the handle and is extended out of the bottom of the first channel of the dilator.
[0019] Beneficial effect: the injection hose is arranged in the second channel of the dilator, which can limit the injection hose, facilitate the adjustment of the extension length of the injection hose during use, and will not cause the injection hose to deviate everywhere, which is beneficial to the delivery of the front end of the injection hose to the administration site.
[0020] Further, one end of the injection hose extended out of the through hole on the side wall of the handle is connected with a syringe.
[0021] Beneficial effect: it is beneficial to hold the handle and inject medicine, and does not interfere with the lead wire in the visual channel.
[0022] Further, the tip of the syringe is provided with external threads, the injection hose is connected with the syringe through a connecting cap, the connecting cap is provided with internal threads, and the connecting cap is threadedly connected with the tip of the syringe.
[0023] Beneficial effect: the threaded connection is convenient for disassembly and assembly, and can maintain good sealing performance.
[0024] Further, the fixing device comprises a bottom plate, a fixing plate and a supporting plate, one end of the fixing plate is hingedly connected with one end of the bottom plate, a plurality of clamping grooves are arranged on the back surface of the fixing plate along the length direction thereof, and a binding assembly for binding small animals is arranged on the front surface of the fixing plate; the bottom of the supporting plate is movably arranged on the bottom plate, and the top of the supporting plate is used for clamping into the clamping grooves on the back surface of the fixing plate.
[0025] Beneficial effect: by arranging the bottom plate, the fixing plate and the supporting plate, the inclination height of the fixing plate can be adjusted by clamping the supporting plate into the clamping grooves at different positions on the back surface of the fixing plate during use, which is convenient for drug administration operation on small animals.
[0026] Further, the binding assembly comprises a fixing bolt and a fixing rope arranged on the fixing bolt, the front surface of the fixing plate is provided with a fixing groove, the lower part of the fixing groove is provided with a threaded section, and the fixing bolt is threadedly connected with the threaded section of the fixing groove by extending into the fixing groove.
[0027] Beneficial effect: the limbs of small animals are bound by the fixing rope, and the tightness of the fixing rope is adjusted by rotating the fixing bolt to wind the fixing rope on the fixing bolt, and the adjustment method is simple.
[0028] Further, the fixed plate is provided with guide rails, the guide rails include two groups of vertical guide rails and a plurality of transverse guide rails arranged between the two groups of vertical guide rails; the vertical guide rails and the transverse guide rails are of concave structures, and the connecting positions of the vertical guide rails and the transverse guide rails are communicated with each other; the side walls of the concave structures are provided with threaded portions, and the fixing bolts are slidably arranged in the concave structures and are threadedly connected with the threaded portions on the side walls of the concave structures.
[0029] Beneficial effects: the position of the fixing bolt can be adjusted by arranging the guide rails, so that the fixing bolt can be adjusted according to the body size of different small animals. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is a structural schematic view of the drug delivery device in Example One;
[0031] Figure 2 It is a structural schematic view of the drug delivery device in Example One; Figure 1
[0032] Figure 3 It is a sectional view of the expander;
[0033] Figure 4 It is a sectional view of another structure of the expander;
[0034] Figure 5 It is a schematic view of the fixing device in Example Two;
[0035] Figure 6 It is a top view of the fixed plate in Example Two; Figure 5
[0036] It is a sectional view of the fixed plate in Example Two; Figure 7 Figure 6
[0037] Figure 8 It is a top view of the adjustable drug delivery fixing device in Example Three;
[0038] Figure 9 It is a connection schematic view of the guide rails and the rotating binding assembly in Example Three; Figure 8
[0039] It is a schematic view of another arrangement of the guide rails on the drug delivery fixing device. Figure 10 DETAILED DESCRIPTION
[0040] The following will be further described in detail through specific embodiments:
[0041] The marks in the drawings of the specification include: body 1, handle 11, through hole 111, connecting rod 12, visualization channel 121, expander 2, connecting channel 20, first channel 21, second channel 22, injection hose 3, syringe 4, fixing device 5, bottom plate 51, fixing plate 52, clamping groove 521, fixing groove 522, support plate 53, guide rail 6, concave structure 60, threaded part 601, sliding part 602, vertical guide rail 61, transverse guide rail 62, placement space 621, fixing bolt 71, fixing rope 72.
[0042] Embodiment one
[0043] As shown in Figures 1-2 A visualization small animal lung drug delivery device includes a body 1 and an expander 2 detachably arranged at the front end of the body 1. The body 1 is provided with a visualization channel 121 for installing a visualization line and a drug delivery channel for installing an injection hose 3. The expander 2 is a telescopic bellows structure and is overall conical. The expander 2 is provided with a first channel 21 and a second channel 22 penetrating along the length direction thereof. The first channel 21 is in communication with the visualization channel 121, and the second channel 22 is in communication with the drug delivery channel.
[0044] The body 1 includes a hollow handle 11 and a connecting rod 12 for connecting the handle 11 and the expander 2. The visualization channel 121 is arranged penetratingly on the connecting rod 12. Specifically, the handle 11 in this embodiment is a transparent cylindrical structure. The large end of the expander 2 is provided with a connecting channel 20. The upper end of the connecting channel 20 is tightly connected or threadedly connected with the bottom of the connecting rod 12. The lower end of the connecting channel 20 is in communication with the first channel 21. When the connecting rod 12 and the expander 2 are connected, the visualization channel 121 is aligned and communicated with the first channel 21, which is convenient for installing the visualization device.
[0045] A wire is arranged in the visualization channel 121. One end of the wire is drawn out from the first channel 21 of the expander 2, and the end thereof is connected with a miniature camera module. The other end of the wire is drawn out from the top of the visualization channel 121 and extends to the outside of the handle 11, and the end thereof is connected with a display device. Figure 1 The wire, the camera module, and the display device are not shown in the figure. Specifically, the wire is a data line capable of transmitting signals. The miniature camera module is a miniature camera that can be used to extend into the body. The display device can adopt an existing computer display screen, mobile phone, or tablet. The internal conditions of the oral cavity, trachea, and lung of a small animal are clearly obtained by the miniature camera, and the image information thereof is transmitted to the display device for display. The connection circuit thereof is a prior art, and will not be described in detail here.
[0046] The side wall and the bottom wall of the handle 11 are provided with through holes 111. The injection hose 3 is arranged penetratingly on the through holes 111, and the through holes 111 constitute the drug delivery channel.Figure 3 As shown, the second channel 22 is arranged at one side of the connecting channel 20, and the bottom of the second channel 22 is communicated with the first channel 21; the bottom of the injection hose 3 extends out of the through hole 111 at the bottom of the handle 11 and then extends into the second channel 22, and extends out of the bottom of the first channel 21 of the expander 2. As shown, Figure 4 As shown, the second channel 22 is arranged at one side of the connecting channel 20, and the bottom of the second channel 22 is communicated with the first channel 21; the bottom of the injection hose 3 extends out of the through hole 111 at the bottom of the handle 11 and then extends into the second channel 22, and extends out of the bottom of the first channel 21 of the expander 2. As shown,
[0047] The upper end of the injection hose 3 extends out of the through hole 111 on the side wall of the handle 11 and is connected with the syringe 4. Specifically, the tip of the syringe 4 is provided with external threads, the injection hose 3 is connected with the syringe 4 through a connecting cap provided with internal threads, and the connecting cap is threadedly connected with the tip of the syringe 4.
[0048] In use, first, the expander 2 is adjusted according to the oral cavity structure of the small animal to adjust the size and length of the expander, and after the adjustment is completed, the expander is installed at the bottom of the connecting rod 12; then, the miniature camera module is installed from the visualization channel 121, and the injection hose 3 is installed from the administration channel, and finally, the upper end of the injection hose 3 is connected with the syringe 4, and the syringe 4 is provided with injection drugs. After the above preparation work is completed, the expander 2 is inserted into the oral cavity of the small animal, and the miniature camera and the injection hose 3 are adjusted so as to pass through the tracheal port to reach the lung administration position, then the syringe 4 is pushed to send the drugs to the lesion, and after the administration is completed, the administration device is taken out.
[0049] Embodiment Two
[0050] The difference between this embodiment and the first embodiment is that, as shown, Figure 5 The fixing device 5 comprises a bottom plate 51, a fixing plate 52 and a supporting plate 53, one end of the fixing plate 52 is hingedly connected with one end of the bottom plate 51, a plurality of clamping grooves 521 are arranged on the back of the fixing plate 52 along the length direction thereof, and a binding assembly for binding the small animal is arranged on the front of the fixing plate 52; the bottom of the supporting plate 53 is movably arranged on the bottom plate 51, and the top of the supporting plate 53 is used for clamping into the clamping grooves 521 on the back of the fixing plate 52, so that the inclination height of the fixing plate 52 can be adjusted by clamping the supporting plate 53 into the clamping grooves 521 at different positions on the back of the fixing plate 52, thereby facilitating the administration operation on the small animal.
[0051] As shown, Figure 6As shown, the binding assembly comprises a fixing bolt 71 and a fixing rope 72 arranged on the fixing bolt 71, and the front surface of the fixing plate 52 is provided with a fixing groove 522, the lower part of the fixing groove 522 is provided with a threaded section, and the fixing bolt 71 extends into the fixing groove 522 and is threadedly connected with the threaded section of the fixing groove 522; specifically, the fixing groove 522 is arranged at the top of the fixing plate 52, and the fixing bolt 71 on the fixing groove 522 is mainly used for fixing the head of a small animal. Figure 7 As shown, both free ends of the fixing rope 72 in the embodiment are fixedly connected to the fixing bolt 71 to form a noose; in use, the head or limbs of a small animal are inserted into the noose, and then the fixing bolt 71 is rotated to make the noose wind around the fixing bolt 71, so as to tighten the fixing rope 72.
[0052] More preferably, the embodiment further comprises a guide rail 6 arranged on the fixing plate 52, and the guide rail 6 comprises two groups of vertical guide rails 61 and a plurality of transverse guide rails 62 arranged between the two groups of vertical guide rails 61; the vertical guide rail 61 and the transverse guide rail 62 are of a concave structure 60, and the connection parts of the vertical guide rail 61 and the transverse guide rail 62 are communicated with each other, so that the fixing bolt 71 can slide from the vertical guide rail 61 to the transverse guide rail 62. Figure 7 As shown, the side wall of the concave structure 60 is provided with a threaded part 601, and the fixing bolt 71 is slidably arranged in the concave structure 60 and threadedly connected with the threaded part 601 on the side wall of the concave structure 60. In use, the position of the fixing bolt 71 on the guide rail 6 can be adjusted to adapt to the body shape of different small animals, so as to be suitable for binding and fixing different small animals.
[0053] Embodiment three
[0054] The embodiment provides an adjustable small animal dosing fixing device, as shown in the drawings, Figures 8-9 As shown, the fixing seat is provided with a plurality of guide rails 6, and a spiral binding assembly is slidably arranged on the guide rail 6; the guide rail 6 is further provided with a threaded part 601, and the spiral binding assembly is threadedly connected with the threaded part 601. Specifically, as shown in the drawings, Figure 9 As shown, the guide rail 6 is of a U-shaped structure, the U-shaped structure is provided with a sliding part 602 and a threaded part 601, and the threaded part 601 is located below the sliding part 602; the spiral binding assembly comprises a fixing bolt 71, and the fixing bolt 71 is provided with a fixing rope 72, when the fixing bolt 71 is rotated, the fixing rope 72 winds around or separates from the fixing bolt 71, so as to tighten or loosen the fixing rope 72.
[0055] Specifically, when the position of the fixing bolt 71 needs to be adjusted, the fixing bolt 71 is rotated to disengage from the threaded portion 601, and then the fixing bolt 71 is slid along the sliding portion 602 of the guide rail 6, and after sliding to the position, the fixing bolt 71 is rotated again to be fixed in the threaded portion 601 at the corresponding position, then the limbs of the small animal are bound by the fixing rope 72, and the fixing bolt 71 is rotated again to gradually wind the fixing rope 72 on the fixing bolt 71 to achieve locking; when the small animal needs to be removed, the fixing bolt 71 is rotated in the opposite direction to gradually release the fixing rope 72.
[0056] Specifically, both free ends of the fixing rope 72 in the embodiment are fixedly connected to the fixing bolt 71 to form a noose; in use, the limbs of the small animal are inserted into the noose, and then the fixing bolt 71 is rotated to wind the noose on the bolt to achieve tightening, and since the bottom of the fixing bolt 71 is threadedly connected with the threaded portion 601 of the guide rail 6, the noose will not be released in the opposite direction after being tightened; by arranging the fixing rope 72 in the noose structure, the small animal can be quickly bound.
[0057] As shown in Figure 8 , the guide rail 6 includes two groups of vertical guide rails 61 and a plurality of transverse guide rails 62 arranged between the two groups of vertical guide rails 61, and three groups of transverse guide rails 62 are taken as an example for illustration, both ends of the transverse guide rail 62 are connected with the vertical guide rails 61 on both sides, and the connection portions are communicated with each other, so as to facilitate the sliding of the fixing bolt 71 on the vertical guide rail 61 from the connection portion into the transverse guide rail 62.
[0058] As shown in Figure 10 , the embodiment also provides another arrangement of the guide rail 6, specifically, one group of transverse guide rails 62 in the guide rail 6 structure includes two sections, the two sections are connected with different vertical guide rails 61, and a placement space 621 is formed between the two sections; compared with the technical solution in Figure 8 , the difference lies in that the guide rail 6 is protrudingly arranged above the fixing seat, while the guide rail 6 structure in Figure 8 is recessively arranged on the fixing seat.
[0059] The fixing seat further includes a bottom plate 51, a fixing plate 52 and a supporting plate 53, specifically, the structure of the fixing seat in the embodiment is consistent with that shown in Figure 5 , one end of the fixing plate 52 is hingedly connected with one end of the bottom plate 51, the fixing plate 52 includes a front surface and a back surface, and the guide rail 6 is arranged on the front surface of the fixing plate 52; the back surface of the fixing plate 52 is provided with a plurality of clamping grooves 521 along the length direction, the bottom of the supporting plate 53 is movably arranged on the bottom plate 51, and the top of the supporting plate 53 is used for clamping into the clamping grooves 521 on the back surface of the fixing plate 52, by clamping the supporting plate 53 into the clamping grooves 521 at different positions on the back surface of the fixing plate 52, the inclination height of the fixing plate 52 can be adjusted to facilitate the drug administration operation on the small animal.
[0060] In use, first, according to the shape of the small animal, the fixing bolt 71 is moved to the appropriate position of the guide rail 6, then the limbs and head of the small animal are bound with the fixing rope 72, after binding, the fixing bolt 71 is rotated to lock the fixing rope 72; then the supporting plate 53 is adjusted to be clamped into the back clamping groove 521 of the fixing plate 52, so that the fixing plate 52 has appropriate height. Of course, the height of the fixing plate 52 can also be adjusted first, then the position of the fixing bolt 71 is adjusted and the fixing rope 72 is locked.
[0061] Example four
[0062] The embodiment also provides a small animal lung administration kit, comprising an administration device, the fixing device 5, and a specification, wherein the specific structure and implementation mode of the administration device are shown in the content disclosed in the embodiment one, the fixing device 5 is the adjustable small animal administration fixing device disclosed in the embodiment three, and the specification records the installation and use method of the administration device and the fixing device 5.
[0063] The above is only the embodiment of the utility model, the utility model is not limited to this embodiment case related field, and the specific structure and characteristics of the scheme known in the art and other common knowledge are not described too much herein. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, a number of deformations and improvements can also be made, which should also be considered as the protection scope of the utility model, and these will not affect the effect and practicality of the utility model. The protection scope claimed in the application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.
Claims
1. A visualizing small animal pulmonary dosing device, characterized in that, The utility model provides an endoscope for small animals, which comprises a body and a dilator detachably arranged at the front end of the body, a visual channel and a drug delivery channel are arranged on the body, the dilator is a telescopic bellows structure and is conical as a whole, a first channel and a second channel are arranged on the dilator along the length direction of the dilator, the first channel is in communication with the visual channel, and the second channel is in communication with the drug delivery channel.
2. The device for visualizing pulmonary dosing in small animals according to claim 1, wherein: The body comprises a handle with a hollow structure and a connecting rod for connecting the handle and the dilator, and the visual channel is arranged through the connecting rod; a through hole is arranged on the side wall and the bottom wall of the handle, a syringe hose is arranged through the through hole, and the through hole constitutes the drug delivery channel.
3. The visualizing small animal pulmonary dosing device of claim 2, wherein: The large end of the dilator is provided with a connecting channel, the upper end of the connecting channel is connected with the connecting rod, and the lower end of the connecting channel is in communication with the first channel.
4. The device for visualizing pulmonary dosing in small animals according to claim 3, wherein: A wire is arranged in the visual channel, one end of the wire is arranged to pass out of the first channel of the dilator, a micro camera module is connected to the end of the wire, the other end of the wire is arranged to pass out of the top of the visual channel and extend to the outside of the handle, and a display device is connected to the end of the wire.
5. The visualizing device for pulmonary administration to small animals according to claim 4, characterized in that: The second channel is arranged on one side of the connecting channel, the bottom of the second channel is in communication with the first channel, the syringe hose extends out of the through hole at the bottom of the handle, extends into the second channel, and extends out of the bottom of the first channel of the dilator.
6. The device for visualizing pulmonary dosing in small animals according to claim 5, wherein: One end of the syringe hose, which passes out of the through hole in the side wall of the handle, is connected with a syringe.
7. The visualizing small animal pulmonary dosing device of claim 6, wherein: The tip of the syringe is provided with external threads, the syringe hose is connected with the syringe through a connecting cap, the connecting cap is provided with internal threads, and the connecting cap is threadedly connected with the tip of the syringe.
8. The device for visualizing pulmonary dosing in small animals according to any one of claims 1 to 7, characterized in that: The fixing device comprises a bottom plate, a fixing plate and a supporting plate, one end of the fixing plate is hingedly connected with one end of the bottom plate, a plurality of clamping grooves are arranged on the back of the fixing plate along the length direction of the fixing plate, and a binding assembly for binding small animals is arranged on the front of the fixing plate; the bottom of the supporting plate is movably arranged on the bottom plate, and the top of the supporting plate is used for clamping into the clamping grooves on the back of the fixing plate.
9. The visualizing small animal pulmonary dosing device of claim 8, wherein: The binding assembly comprises a fixing bolt and a fixing rope arranged on the fixing bolt, the front of the fixing plate is provided with a fixing groove, the lower part of the fixing groove is provided with a threaded section, and the fixing bolt is threadedly connected with the threaded section of the fixing groove by extending into the fixing groove.
10. The visualizing small animal pulmonary dosing device of claim 9, wherein: The fixing plate is provided with guide rails, the guide rails comprise two groups of vertical guide rails and a plurality of transverse guide rails arranged between the two groups of vertical guide rails, the vertical guide rails and the transverse guide rails are of a concave structure, the connection portions of the vertical guide rails and the transverse guide rails are in communication with each other, the side walls of the concave structure are provided with threaded portions, the fixing bolt is slidably arranged in the concave structure and is threadedly connected with the threaded portions on the side walls of the concave structure.