159 results about "Laboratory rat" patented technology

The invention provides a safe laboratory mouse anesthesia device which comprises an anesthesia box, an opening is formed in the bottom of the anesthesia box, a rotatable laboratory mouse state detection mechanism is arranged on the bottom face of the anesthesia box, the laboratory mouse state detection mechanism is used for monitoring pressure generated by a laboratory mouse, and a pressure plate driving mechanism is arranged on the outer surface of the anesthesia box. During use, the laboratory mouse state detection mechanism is arranged at the bottom of the anesthesia box to support a laboratory mouse, and whether the laboratory mouse is in a standing state or a lying state is judged according to different contact areas of the laboratory mouse and the laboratory mouse state detection mechanism when the laboratory mouse stands and lies down through pressure values of unit areas; and when the laboratory mouse is in an anesthetic state, the laboratory mouse state detection mechanism is driven by the pressure plate driving mechanism to rotate to release the laboratory mouse, so that excessive anesthesia of the laboratory mouse is avoided, and the effect of improving the anesthesia safety is achieved.

The invention discloses a laboratory mouse temporomandibular joint cavity injection method and device based on ultrasonic guidance, and relates to the technical field of laboratory mouse experiments.The device comprises a supporting column, a first cantilever arranged on the supporting column, an external auditory canal positioning piece arranged on the first cantilever, and a second cantilever arranged on the first cantilever in a sliding mode, the second cantilever can rotate around the end, close to the first cantilever, of the second cantilever, and the second cantilever is used for being parallel to the orbital ear plane of the laboratory mouse; the carrying mechanism is arranged on the second cantilever in a sliding mode, and the carrying mechanism is used for driving the ultrasonic probe and the injector to move to the position of the articular cavity. Injection of the joint cavity of the laboratory mouse is guided based on the image collected by the ultrasonic probe, the needle inserting position, angle and depth of the injector can be observed and adjusted in real time, and compared with blind puncture in the prior art, the success rate of injection can be greatly increased, the number of times of puncture attempts can be reduced, and meanwhile the uniformity of laboratory mouse samples is effectively improved.

The invention requests to protect an automatic laboratory mouse wound area tracking method and system based on image recognition, images of a wound area are regularly acquired through a multispectral imaging device, parameters such as ambient light and shooting distance are synchronously recorded in the acquisition process to ensure data consistency, the images are preprocessed by using a distributed computing system, and the data consistency is ensured. Inputting the preprocessed image into a deep segmentation model trained based on a large-scale data set to accurately identify and output a binarized contour mask of a wound region, calculating wound geometric features based on the mask, and dynamically generating a quantitative report including an area change rate and a healing trend coefficient; all time sequence data are stored in a time sequence database and used for constructing a complete wound healing track map, and visualization and trend analysis of the healing process are supported. According to the invention, high-flux, automatic and quantitative monitoring of the wound healing process of the laboratory mouse is realized, and objectivity and analysis efficiency of animal experiment data are remarkably improved.

The utility model provides an efficient out-of-focus myopia model based on an anti-scratch lens fixing device, which comprises a gauze ring, a base, a mounting cylinder and a lens, the inner wall of the lower end of the base is glued with the gauze ring used for shading and dust prevention, and the upper side of the base is movably clamped with the mounting cylinder used for mounting the lens. Compared with the prior art, the laboratory mouse has the advantages that the base is arranged, the through holes in the side edge of the base are matched with the gauze, so that the eyes of the laboratory mouse can be ventilated, the situation that the experiment result is affected by eye discomfort caused by sealing is avoided, and dust and bacteria in the external environment can be intercepted; by matching with sponge columns of which the interiors of spaced through holes are fully sucked with silver ion antibacterial agents, the antibacterial effect can be effectively achieved, infection caused by the influence of bacteria on eye products of laboratory mice is avoided, the stable fixing performance is provided through deformation by arranging a protection plate and a mounting cylinder on the base, and then the lens is fixed more stably.

The utility model relates to a water feeding structure for experimental animal feeding, which comprises a water inlet pipe, a water outlet pipe and a water outlet pipe, the drainage assembly is installed at the bottom of the water inlet pipe, and the drainage assembly is used for guiding water of the water inlet pipe into the cage. According to the water feeding structure for experimental animal feeding, the drainage assembly is arranged, water of the water inlet pipe can be guided into the drainage groove of the drainage block, opening and closing of the drainage groove are achieved through the locking mechanism, the hidden drinking design can avoid the problem that a water source is exposed in the air for a long time and is polluted and deteriorated, and the service life of the water feeding structure is prolonged. The problem that bacteria breed in the cage due to damp when the water basin is overturned can be avoided, and the water drinking requirements of a plurality of laboratory mice can be met at the same time.

The utility model relates to the technical field of experimental animal feeding device design, and discloses an easy-to-clean experimental mouse feeding cage which comprises a feeding box, a hollow inhabitation platform is arranged in the feeding box, and the inhabitation platform divides the feeding box into an inhabitation space and a dirt storage space in the vertical direction. The joints of the adjacent side walls in the inhabiting space and the joints of the inhabiting platform and the four walls in the inhabiting space are all in an arc-shaped connection mode, a box cover is arranged at the top of the feeding box, a guide groove is annularly formed in the top wall of the feeding box, a scraping plate is arranged on the inner side wall of the inhabiting space in an attached mode, the top end of the scraping plate is rotationally connected with a driving plate, and the driving plate is arranged in an L shape; the vertical part of the driving plate is inserted into the guide groove, a driving assembly is arranged in the guide groove, a collecting box is arranged at the inner bottom of the feeding box in a sliding mode, the collecting box is located below the hollowed-out through hole of the inhabiting platform, and a box door is hinged to the position, corresponding to the collecting box, of the feeding box. The cleaning device has the effect of improving the working efficiency of cleaning the laboratory mouse rearing cage.

The application provides a laboratory mouse tail skinner and an operating method thereof, which comprises a base, a cutting mechanism comprising a first assembly ring and a plurality of cutting assemblies, any cutting assembly comprising a first mounting seat and a cutting knife, the cutting knife being arranged on the first mounting seat and extending towards the center of the first assembly ring, and a skinning mechanism comprising a second assembly ring and a plurality of skinning assemblies, the second assembly ring being arranged concentrically with the first assembly ring, and the skinning assembly comprising a second mounting seat and a skinning knife, the skinning knife being connected to the second mounting seat and facing along the axial direction of the second assembly ring. The application replaces manual operation of a handheld blade with a mechanical structure, effectively avoiding the safety hazard of a sharp blade scratching the fingers of a laboratory worker. In addition, the application has a simple body structure and is convenient to assemble, can flexibly adjust the positions of the cutting assemblies and the skinning assemblies according to laboratory mouse tails of different specifications, has a wide range of applications, and has high practicality and promotional value.

The invention discloses a laboratory mouse feed and a preparation method thereof. The feed consists of the following raw materials in percentage by weight: 32-38% of corn flour, 22-28% of fermented soybean meal, 8-12% of fish meal, 4-6% of silkworm chrysalis meal, 10-15% of low-gluten wheat flour, 2-3% of purple perilla seed oil, 1.5-2.5% of calcium carbonate, 0.8-1.2% of calcium hydrophosphate, 0.3-0.5% of table salt, 0.8-1.2% of microencapsulated compound vitamins, 0.2-0.4% of an enzyme preparation compound, 3-5% of dietary fibers and the balance of mineral premix. The preparation method has the beneficial effects that the vitamin retention rate of the technical scheme is increased by 30-40% compared with a contrast, and the problem of nutrient loss caused by a traditional high-temperature process is solved; the water uniformity is improved by 68% through gradient cooling, the quality guarantee period is prolonged from 50 days to 85-95 days in combination with a microencapsulation technology, and the storage loss is reduced.

The utility model discloses a rat binding device for experimental acupuncture, which comprises a bottom plate, a first support frame is fixedly mounted at one end of the top of the bottom plate, a second support frame is fixedly mounted at the other end of the top of the bottom plate, a placing component is rotatably mounted between the first support frame and the second support frame, and the outer side of the placing component is in meshed connection with a turnover component. The fixing assembly is installed in the middle of the top face of the containing assembly, the adjusting assemblies are fixedly installed at the two ends of the two sides of the containing assembly, and the binding assemblies are fixedly installed at the tops of the adjusting assemblies and the tops of the containing assembly. An experimenter can easily turn a rat from a supine position to a prone position, and acupuncture points of different parts can be conveniently and quickly exposed; through the adjusting assembly, it is ensured that the laboratory mouse is stably and comfortably fixed, and it is avoided that the accuracy of acupuncture operation and the reliability of experimental data are affected due to infirm fixing.

The utility model belongs to the technical field of biological experiment equipment, and particularly relates to an anesthesia box with a detachable partition plate, which comprises a box body, an anesthesia tube is arranged on one side of the box body in a penetrating manner, an oxygen tube is arranged on the box body and positioned on one side of the anesthesia tube in a penetrating manner, and the partition plate is arranged in the box body. Two first sealing rings are arranged on the periphery of the outer side of the partition plate, a bottom foot plate is fixed to one side of the bottom of each first sealing ring and is perpendicular to the partition plate, a supporting assembly is arranged on one side of the partition plate, a cover plate is hinged to one side of the top of the box body, and a sealing plate matched with the box body in a sealing mode is arranged on one side of the cover plate. The sealing plate can be inserted into the box body; according to the experimental mouse box, the situation that an experimental mouse is too small and anesthetic is wasted can be effectively avoided, the experimental cost is reduced, the partition plates can be detached, and the using flexibility and practicability of the experimental mouse box are improved.

The utility model relates to the technical field of biological experiment devices, in particular to a mouse rearing cage which comprises a cage frame body, a plurality of cross beam sets, connecting pieces, mouse cages and a ventilation mechanism, the ventilation mechanism is arranged on the cage frame body, all the cross beam sets are arranged on the cage frame body in the vertical direction, and the connecting pieces are arranged on the cross beam sets. The mouse cage is hung on the two first cross beams of one cross beam set, the number of the connecting pieces is multiple, the two ends of each first cross beam are fixedly connected with the two connecting pieces in a one-to-one correspondence mode, a plurality of clamping grooves are formed in the cage frame body, and the connecting pieces are detachably and fixedly connected with the clamping grooves through bolts. The cage frame is easy to assemble and disassemble due to the modular design, the ventilation mechanism provides a good environment for laboratory mice, and the disease incidence rate is reduced; and the applicability of the cage frame is improved by the adjustable cross beam group.

The utility model discloses an automatic feeding device for laboratory mice, which belongs to the technical field of automatic feeding and comprises a bottom plate, a quantitative feeding mechanism is arranged above the bottom plate, and an alarm mechanism is arranged above the bottom plate. The quantitative feeding mechanism is arranged, the alternating-current power supply box supplies power to the electric actuator, the direct-current power supply box and the slide rheostat are matched to provide 4-20 mA electric signals for the electric actuator, the resistance value of the slide rheostat can be adjusted according to different weights of laboratory mice, and therefore the direct current is adjusted, and the feeding efficiency is improved. The opening degree of a valve is adjusted through an electric actuator, the feeding amount of laboratory mice with different weights is adjusted, meanwhile, an alarm mechanism is further arranged, when food is little, the weight of the food cannot press a sliding plate downwards by an enough distance, an alarm rod cannot make contact with an alarm, and when the alarm rod does not make contact with the alarm, the alarm triggers an alarm, and the alarm rod cannot make contact with the alarm. And a worker is reminded of insufficient food in the storage tank, so that the worker can add the food in time.

This utility model relates to a simple experimental mouse fixation and tail vein injection device, including a fixation platform, a transparent isolation cover, and a tail fixation component. The transparent isolation cover is used to cover the experimental mouse on the fixation platform. An isolation cover notch is formed at the edge of the open end of the transparent isolation cover, through which the tail of the experimental mouse protrudes. The tail fixation component is used to fix the protruding tail of the experimental mouse on the fixation platform. This utility model combines experimental mouse fixation, tail fixation, and visual monitoring, achieving a dual improvement in drug administration accuracy and simplified experimental operation. It can be operated by a single person and is suitable for precise drug delivery and real-time image monitoring in small animal experiments, possessing high practical value and promising prospects for widespread application.

The invention relates to the technical field of orthodontic tooth movement in animal experiments, in particular to a mouse orthodontic tooth movement model and a construction method thereof, and the mouse orthodontic tooth movement model comprises a traction assembly and an anchorage nail; the laboratory mouse is provided with a maxillary bone, second molar teeth growing on the maxillary bone and incisors growing on the maxillary bone, first molar teeth of the laboratory mouse are extracted, and an avoiding space is formed in front of the second molar teeth after the first molar teeth are extracted; the anchorage nail is connected to the maxillary bone and is positioned between the second molar and the incisors; the anchorage nail is fixed after being implanted into the maxillary bone, so that the position change of the traction assembly caused by connecting the traction assembly to the incisors can be avoided; the traction assembly is arranged between the second molar and the anchorage nail, the front end of the traction assembly is connected with the anchorage nail, the rear end of the traction assembly can penetrate through the avoiding space and is connected with the second molar, the second molar is used as an experimental moving tooth, and the movement rule of human clinical orthodontic teeth can be better simulated.

The invention discloses an intelligent laboratory mouse tracheal intubation operation system and method based on mechanical arm linkage, and relates to the technical field of technical biomedices.The system comprises a respiratory anaesthesia machine, an anesthesia maintaining box and a mechanical arm, the anesthesia maintaining box is connected with the respiratory anaesthesia machine, and a mechanical arm moving track is arranged on the upper portion in the anesthesia maintaining box; a drawable laboratory mouse device plate for fixing a laboratory mouse is arranged in the anesthesia maintaining box; an operation port of the mechanical arm is provided with a tracheal catheter release device which is used for clamping a tracheal catheter to move to the deep layer in the laryngeal cavity after the oral cavity of the experimental mouse is pried open, and inserting a tracheal cannula into the trachea of the experimental mouse; an image acquisition module for acquiring in-vitro continuous images and in-oral continuous images in real time is arranged beside the tracheal catheter; an image processing module is arranged in the mechanical arm and used for analyzing continuous images in the oral cavity, recognizing and marking the trachea and calculating the time difference of opening and closing of a trachea pipeline window. On the basis of mechanical arm linkage, full-automatic implementation of the tracheal intubation operation in narrow and small lacuna is achieved.

The present application relates to a kind of multifunctional intelligent ecological cabin for depriving the sleep of mouse, including bearing box, protective end cap, drive pump, multi-way valve, forced bearing platform and drive circuit, bearing box upper end surface is connected with protective end cap, forced bearing platform is connected with the bottom of bearing box and is vertically distributed, bearing box bottom is equipped with a sewage outlet, lower half of side wall is equipped with a water inlet, sewage outlet, water inlet are all communicated with multi-way valve, multi-way valve is communicated with drive pump, drive pump and drive circuit are all located the outside surface connection of bearing box.Its use method includes three steps of system assembly, preliminary experimental operation and depth experiment.The present application is flexible on one hand experimental means, can effectively meet the needs of various prompting experimental mouse to participate in experiment, and effectively improve the experimental effect and experimental efficiency of experimental mouse sleep deprivation experiment;On the other hand, it effectively simplifies the labor intensity of experimental operation and equipment maintenance operation, while effectively improving the working environment of experimental mouse sleep deprivation experiment.

The invention relates to a construction method of an experimental autoimmune prostatitis rat model. The construction method comprises the following steps: S1, preparing a prostate specific antigen mixture; s2, selecting male SD rats as laboratory rats, and dividing the laboratory rats into a normal saline control group, a low-dose model group and a high-dose model group; s3, continuously injecting for 7 days, allowing the normal saline control group to accept injection of 0.2 ml of normal saline every day, allowing the low-dose model group to accept injection of 0.1 ml of prostate specific antigen mixture every day, and allowing the high-dose model group to accept injection of 0.2 ml of prostate specific antigen mixture every day; and S4, continuously feeding all groups of experimental mice to the 28th day, inducing the experimental mice in the low-dose model group and the high-dose model group by the prostate specific antigen mixture to cause experimental autoimmune prostatitis, and obtaining the experimental autoimmune prostatitis rat model. The use of animals can be reduced, the cost is reduced, and the modeling efficiency and stability can be improved.

The utility model belongs to the field of biological experiment instruments, and discloses an auxiliary device suitable for electroacupuncture intervention of acupuncture points on the head and the back of an experimental mouse. The auxiliary device comprises an experiment box and a bridle, wherein the experiment box is provided with a moving cavity for the laboratory mouse to move; the band is annular and is sleeved and tightened on the abdomen of the laboratory mouse, so that acupuncture points on the head and the back can be completely exposed in front of researchers, and the electric needles can conveniently pierce the acupuncture points on the head and the back of the laboratory mouse. The electric needle wire penetrates into the binding ring of the binding belt and is connected with the electric needle penetrating into the acupuncture points of the head and the back of the laboratory mouse, so that the electric needle wire is fixedly attached to the back of the laboratory mouse through the binding belt, and the laboratory mouse can be prevented from scratching and biting to affect the experiment. After the experimental mouse with the bridle is put into the experimental box, the experimental box can provide a limited environment in which the experimental mouse can move in a small range for the experimental mouse, so that the stimulation and environmental pressure on the experimental mouse are reduced, the anxiety or depression probability of the experimental mouse can be reduced, and the experimental mouse can be effectively intervened for a long time.

The utility model discloses a preclinical test AD mouse modeling tool which comprises a tool body, one side of the tool body is fixedly connected with a cylinder, an arc-shaped plate is arranged in the cylinder, one side of the arc-shaped plate is provided with a first screw rod, one side of the tool body is symmetrically and fixedly connected with bearing plates, and the bearing plates are fixedly connected with the cylinder. Second screw rods are symmetrically and rotationally connected to one side of the interior of the bearing plate, sliding plates are in threaded connection with the outer sides of the second screw rods, third screw rods are in threaded connection with the interiors of the sliding plates, fixing seats are rotationally connected to one ends of the third screw rods, and the sliding plates are in threaded connection with the third screw rods by rotating the third screw rods. And the head of the laboratory mouse can be conveniently clamped by rotating the clamping plate, the situation that the laboratory mouse shakes in the molding process and the molding effect is affected is prevented, rapid molding is facilitated through the overall structure, and the molding efficiency is greatly improved.

The invention relates to an efficient energy supply type laboratory mouse feed which comprises the following components in percentage by weight: 20-40% of corn, 10-30% of wheat, 1-5% of wheat middling, 4-10% of soybean meal, 2-8% of fish meal, 2-6% of chicken meal, 1-10% of soybean hull, 1-5% of soybean oil, 1-5% of lard, 0.5-2% of stone powder, 0.5-1.5% of calcium hydrophosphate, 2-5% of premix, 1-5% of MCT microcapsule powder and 0.5-2% of glutamine. The stability of MCT is improved through a microencapsulation method, the activity of glutamine is reserved through an embedding method, the synergistic effect of MCT microcapsule powder and glutamine is utilized, meanwhile, lard oil and fat raw materials are added, high-temperature steam is used for curing materials in the production process, the fragrance of the feed is further improved, the palatability of the feed is jointly improved, the food intake of laboratory mice is not affected, and the production cost is reduced. The utilization efficiency of the feed is improved; the experimental mouse feed can reduce body fat and improve blood lipid level, can effectively prolong exhaustion time of mice, and is suitable for cultivation and maintenance of special experimental animals such as intestinal injury models and immunodeficiency models.

The invention provides a laboratory mouse fixing frame for acupuncture or moxibustion. The laboratory mouse fixing frame comprises a fixing assembly, an overturning assembly and a moxa stick clamping assembly. The fixing assembly is used for binding and constraining the laboratory mouse; the overturning assembly comprises a base, U-shaped frames are connected to the two sides of the upper end of the base, rotating plates are connected to the opposite sides of the two U-shaped frames, connecting rods are connected to the opposite sides of the two rotating plates, and each connecting rod is connected with the fixing assembly. According to the device, the overturning assembly is arranged, the fixing assembly for binding the laboratory mouse is arranged in a suspended mode, overturning of the fixing assembly and the laboratory mouse is achieved by rotating two rotating plates, the rotating plates can be locked through locking blocks, shaking of the laboratory mouse in the acupuncture or moxibustion process is avoided, and the double-face acupuncture effect on the laboratory mouse is achieved; meanwhile, the fixing assemblies and the connecting rods are detachably connected, fixing assemblies of different models can be conveniently selected according to the types of the laboratory mice, and the application range of the device is widened.

The utility model discloses a laboratory mouse partition rearing cage which comprises a box body, cage plates and partition plates. The top edges of the opposite side walls of the box body are concave and inclined downwards to form a V-shaped structure, a hollow baffle is arranged at the inner bottom of the box body, and a hole is formed in the baffle in a penetrating mode. The cage plate obliquely covers the top of the box body along the top edge of the box body; the partition plates are inserted into the box body in the width direction of the box body so as to form a plurality of partitions in the box body; the partition plate corresponds to the baffle plate in position in a direction perpendicular to the bottom surface of the box body, so that the partition plate and the baffle plate can be correspondingly inserted into the baffle plate; a bottom plate of the box body comprises a net plate and a drawing plate, the drawing plate is arranged below the net plate, a protruding block abutting against the net plate is arranged on the drawing plate, and when the drawing plate is drawn out from the lower portion of the net plate, the protruding block ejects the net plate to generate vibration; according to the laboratory mouse cleaning box, the movable drawing plate with the convex block is arranged below the net plate, so that excrement at the bottom in the box body can be cleaned without transferring laboratory mice in advance, and the daily cleaning efficiency is improved.

The invention discloses a state recognition method of an adaptive gene editing laboratory mouse, and aims to solve the problem of insufficient state recognition specificity of the gene editing laboratory mouse in the prior art. The method comprises the following steps: acquiring genotypes, disease model types and experimental environment parameters of laboratory mice; optimizing detection and optical flow analysis parameters, generating a time sequence behavior track map and segmenting a key area; extracting general and pathological specific composite features and standardizing the general and pathological specific composite features; calling a genotype pathological feature association database to calibrate a weight and a threshold value, and inputting a random forest classifier recognition state of transfer learning optimization; scores are calculated through a weighted scoring model, the state is judged, and credibility is calculated through a multi-dimensional confidence evaluation model. The method is suitable for various gene editing laboratory mice and experimental environments, the accuracy and suitability of state recognition are improved, and powerful support is provided for gene therapy research and development and disease mechanism research.

The experimental mouse cage comprises a mouse cage body, an opening is formed in the top of the mouse cage body, a feeding pipe is vertically arranged at the opening, a feeding trough is arranged under the feeding pipe, an installation support is further arranged at the top of the mouse cage body, and a storage tank and a weighing assembly are further arranged on the installation support. A control panel is also arranged on the outer side wall of the mouse cage main body; the mouse cage is improved on the basis of an existing mouse cage structure, the weighing structure is adopted to measure fed feed in advance, so that accurate control of timing and quantification is achieved, meanwhile, the weight of a mouse can be measured through the force sensor, and a worker can know the feeding condition of the mouse more clearly; and residual feed in the feeding trough can be quickly emptied before and after feeding, so that the situation that the mouse eats the deteriorated feed due to long-time exposure can be prevented, and the effect of regular and quantitative feeding can be enhanced, so that the accuracy of a test result is guaranteed.

The invention discloses an experimental mouse grain crushing device with a multi-cavity structure, and relates to the technical field of mouse grain processing, the experimental mouse grain crushing device comprises a pre-crushing bin, a conveying bin and a crushing bin, the conveying bin is fixedly connected to the bottom of the pre-crushing bin, the crushing bin is fixedly connected to the bottom of the conveying bin, and two pre-crushing rollers are rotatably connected to the interior of the pre-crushing bin; the back face of the pre-crushing bin is fixedly connected with a first motor, an output shaft of the first motor is fixedly connected with the rear end of one of the pre-crushing rollers, the anti-blocking mechanism is arranged in the pre-crushing bin, and the anti-blocking mechanism comprises two transverse supporting beams fixedly connected to the two sides of the bottom end in the pre-crushing bin; and a vertical frame is fixedly connected to the bottom end of the interior of the pre-crushing bin, a reset spring is fixedly connected to the upper end of the vertical frame, and a connecting frame is fixedly connected to the front end of the reset spring, so that the problem that mouse food is prone to rolling when making contact with the roller surface, and mouse food pre-crushing treatment is affected is solved.

The utility model discloses a laboratory mouse mouth gag, which belongs to the technical field of animal medical experiment auxiliary instruments and comprises a V-shaped elastic piece, the V-shaped elastic piece comprises an elastic part and two connecting rods respectively positioned at two ends of the elastic part, and one ends of the two connecting rods far away from the elastic part are provided with an upper incisor fixer and a lower incisor fixer. The upper incisor fixer inwards rotates by 20-30 degrees by taking the axis of the connected connecting rod as the axial direction, and the lower incisor fixer inwards rotates by 20-30 degrees by taking the axis of the connected connecting rod as the axial direction. The upper and lower incisor connecting rods are connected with the length-adjustable sliding rod, and the length of the far end can be adjusted according to experiment requirements. According to the laboratory mouse mouth gag, an operator can operate the laboratory mouse mouth gag with one hand, the other hand of the operator can assist in fixing a laboratory mouse or conducting experimental operation, one person can complete the operation of opening the oral cavity of the mouse, and the laboratory mouse mouth gag is large in elasticity and can effectively prevent the oral cavity of an experimental part from being closed. An experiment oral cavity is always opened, so that an operator can conveniently carry out an experiment.

The utility model provides a laboratory mouse clamping and fixing device which comprises a shear body, a first clamping part, a second clamping part, a first fixing part and a second fixing part. The fixing cylinder comprises a first fixing part and a second fixing part, the first fixing part is connected to the end of the first clamping part, and the second fixing part is connected to the end of the second clamping part; the mouse body assembly comprises a third fixing part and a fourth fixing part, the third fixing part is connected to the first clamping part, and the fourth fixing part is connected to the second clamping part; and the mouse tail assembly comprises a fifth fixing part and a sixth fixing part. The head of a mouse can be fixed through the fixing cylinder, the mouse is prevented from being frightened to move restlessly, twist the head to bite people and the like, the risk of hurting experimenters is reduced, the mouse tail assembly can ensure that the experiment operation cannot be interfered by swinging of the mouse tail, and the experiment safety and the experiment efficiency are improved.

The application discloses a retinal light damage box experimental device for observing mouse visual dynamic response, which comprises a reflecting box body, a box cover hinged to one side of the top end of the reflecting box body, the box cover being matched with the reflecting box body, a light irradiation assembly fixedly connected to one side of the box cover close to the inside of the reflecting box body, the inner wall of the reflecting box body being used for reflecting the light emitted by the light irradiation assembly, the light irradiation assembly being electrically connected with a control system, a frequency adjusting assembly fixedly connected to the middle of the bottom end of the reflecting box body, the frequency adjusting assembly being covered on a placing table, the frequency adjusting assembly being correspondingly arranged on the inner wall of the reflecting box body, and a placing assembly fixedly connected to the middle of the top end of the placing table, the experimental mouse being placed in the placing assembly, the light irradiation assembly and the frequency adjusting assembly being correspondingly arranged on the placing assembly. The application realizes dynamic observation of the light damage condition of the experimental animal, avoids repeated experiments, shortens the experimental period and improves the experimental efficiency.

The utility model discloses a laboratory mouse fixer which comprises a working table and a lead screw device, the side face of the working table is provided with the lead screw device, the lead screw device is provided with two bidirectional supporting devices, each supporting device comprises a supporting frame and a supporting rod, the supporting frames are used for supporting an elastic band, and the supporting rods are used for supporting the elastic band. The supporting frame is connected with the supporting rod through a transverse rod, the transverse rod is movably connected with the supporting rod, a first through hole and a second through hole are longitudinally formed in the workbench in a spaced mode, a first rough surface is arranged on the portion, located on the side face of the first through hole, of the back face of the workbench, and a third through hole is formed in the side, away from the lead screw device, of the workbench. The side face of the third through hole is provided with a second hair face, and the elastic band is provided with corresponding hook faces corresponding to the first hair face and the second hair face. The experimental mouse fixing device has the beneficial effects of facilitating operation of workers, reducing stress reaction of experimental mice by fixing the experimental mice, and adapting to fixing of experimental mice of different body types.

The utility model relates to the technical field of test devices, and discloses a sleep deprivation test device, which comprises a box body, wherein a cover is arranged at the top of the box body; the feeding trough is arranged in the box body; a lifting assembly is arranged in the box body, and the lifting assembly comprises a plate body arranged in the box body; the rotating rod is rotationally arranged in the box body; the extrusion block is fixedly arranged on the outer side wall of the rotating rod; according to the test device, the motor is used for driving the rotating rod to rotate through the lifting assembly, so that the extrusion block extrudes the stand column to ascend and descend and drives the platform to ascend and descend, and the laboratory mouse on the platform can be kept awake so as to observe the state of the mouse. And compared with the existing device, the sleep of the laboratory mouse can be better influenced. According to the test device, through the design of the protection assembly and the inclined plate, the laboratory mouse can climb to the platform faster along the inclined plate after falling into water, and it is avoided that the laboratory mouse drowns in water for a long time to affect experimental data.