228 results about "Laboratory rat" patented technology

The utility model provides a laboratory mouse quantitative pellet feed low-temperature granulation device, which relates to the field of laboratory mouse feed granulation, and comprises a tabletting unit, the top of the tabletting unit is provided with a quantitative feed injection unit, and the back of the tabletting unit is provided with a cooling unit; the fan blades are driven to rotate through the output shaft of the first motor, the fan blades generate air flow to be blown to the bottom of the lower mold, then the lower mold can be cooled, cooling liquid in the liquid storage tank is injected into an inner cavity of the liquid conveying pipe through the conveying pump, and the cooling liquid is conveyed into the heat absorption sleeve through the liquid conveying pipe. Heat on the surface of an upper mold can be absorbed through a heat absorption sleeve, the upper mold is rapidly cooled, cooling liquid absorbing heat in the heat absorption sleeve can be conveyed into a liquid storage tank again, heat absorption circulation is achieved, meanwhile, the cooling liquid in the liquid storage tank can be stirred in real time through a stirring mechanism, heat absorbed by the cooling liquid is volatilized, and therefore frequent use can be achieved; therefore, granulation in a low-temperature state is realized, and the activity quality of the feed is ensured.

The invention relates to the field of laboratory animal research, in particular to a multi-period adjustable cage wall fixed type automatic feeding device which comprises a feeding box and a feeding device, the feeding device is arranged at the top of the feeding box, the feeding device comprises a feed bin, the feed bin is used for storing feed, the feed bin is transversely arranged, and the feed bin is arranged in the feeding box. A fixing part and a timing control part are arranged at the two ends of the feed bin respectively, the fixing part and the timing control part are both clamped and matched with the feeding box, the feed bin is rotationally connected with the fixing part, the timing control part drives the feed bin to rotate in the circumferential direction, a feeding window is formed in the peripheral wall of the feed bin, and a blocking fence is arranged in the feeding window. The experimental mouse feeding device is convenient to assemble integrally, stable in structure and capable of effectively guaranteeing the stability when experimental mice are fed; meanwhile, all the fed feed can be recovered, and absolute fasting of the laboratory mice can be achieved.

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 provides a virtual reality multi-sensory stimulation virtual reality system for a stroke laboratory mouse, which relates to the technical field of medical experiments and comprises a treadmill, a treadmill adjusting component, a weight reduction system, a visual system, an auditory stimulation system, a tactile stimulation system, an olfactory stimulation system, a reward and punishment system, an information acquisition system and a main control system. According to the invention, by designing the weight reduction system, the movement of the experimental mouse is adjusted, the virtual reality multi-sensory stimulation experiment of the stroke experimental mouse which cannot support 100% of the weight of the mouse can be realized, and a visual system, an auditory stimulation system, a tactile stimulation system, an olfactory stimulation system and a reward and punishment system are matched; post-stroke nerve remodeling and motion mode reconstruction are promoted through multi-sensory-channel stimulation, and an important foundation is laid for the next step that virtual reality is used for human body rehabilitation training.

The invention discloses an experimental rat IVC rearing cage frame air pipe dust removal and disinfection device which comprises a walking vehicle, a water suction pump and a negative pressure pump, the water suction pump and the negative pressure pump are installed on one side of the upper end of the walking vehicle, a filtering assembly is arranged on one side of the upper end of the walking vehicle, an air inlet of the negative pressure pump is communicated with a negative pressure pipe, and a water storage barrel is arranged on one side of the upper end of the walking vehicle. A telescopic rod is arranged at the position, above the filtering assembly, of the upper end of the walking vehicle, a dust removal assembly is arranged at the front end of the telescopic rod, a disinfection assembly is arranged on the edge of the upper end of the dust removal assembly in a matched mode, and the upper end and the lower end of the rear end of the outer wall of the telescopic rod communicate with communicating pipes; the upper end of the filtering assembly communicates with an exhaust pipe, and a storage battery and a control panel are arranged on one side of the upper end of the walking vehicle. The dust removal device is convenient to use and efficient in dust removal effect, the cage frame pipeline can be fully cleaned, and the labor intensity of workers can be reduced.

The invention discloses a laboratory mouse fixing mechanism and an explosion experiment device, and relates to the technical field of experiment auxiliary equipment. The conical barrel is of a hollow structure and is provided with a first end and a second end, the diameter of the first end is smaller than that of the second end, and the second end is detachably connected with one end of the barrel body; the fixing structure is arranged on the barrel and comprises a fixing plate and a guide assembly, the fixing plate is clamped in the barrel, the guide assembly comprises a sliding block and a sliding groove, the sliding groove is formed in the side wall of the barrel in a penetrating mode, the length direction of the sliding groove is consistent with the axial direction of the barrel, and the sliding block is clamped in the sliding groove and is in sliding connection with the sliding groove. One end of the sliding block is fixed to the fixing plate. The experimental mouse fixing device has the advantages that the body of an experimental mouse can be fixed through the fixing structure, the head of the experimental mouse can be fixed through the conical barrel, and the better fixing effect is achieved. Meanwhile, a structure for adjusting the angle of the fixing mechanism is arranged, so that the injury degree of explosion to the head of the laboratory mouse at different angles can be studied.

The utility model discloses an experimental mouse cage, and relates to the technical field of animal experiments. The experimental mouse cage can automatically monitor food intake of mice. The experimental mouse cage comprises a mouse cage body, a first mouse cage cover, a second mouse cage cover, a feeder, a water feeder and a weighing sensor; the number of the weighing sensors is two, and the two weighing sensors are installed at the same end of the mouse cage body and arranged in a spaced mode. The first mouse cage cover and the second mouse cage cover are arranged at an interval, one end of the first mouse cage cover and one end of the second mouse cage cover are hinged to the same end of the mouse cage body, and the other end of the first mouse cage cover and the other end of the second mouse cage cover are lapped on the two weighing sensors respectively; the feeder is installed on the first mouse cage cover and extends into the mouse cage body, and the water feeder is installed on the second mouse cage cover and extends into the mouse cage body. The mouse diet frequency and diet amount monitoring system can automatically monitor the diet frequency and diet amount of the mouse, and frequent manual participation is not needed.

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 relates to experimental mouse behavior contrast monitoring equipment, which comprises an experimental box, a plurality of groups of placing cavities for placing experimental mice are sequentially arranged in the experimental box along the left-right direction, a plurality of groups of mounting seats are sequentially and fixedly connected to the top of the back of the experimental box along the left-right direction, and L-shaped butt joint plates are rotatably arranged in the mounting seats. The end, away from the mounting base, of the L-shaped butt joint plate is fixedly connected with a top cover used in cooperation with the containing cavity, a plurality of sets of sliding plates used in cooperation with the containing cavity are sequentially arranged on the front face of the experiment box in a sliding mode in the left-right direction, and an auxiliary assembly is arranged on the experiment box. According to the experimental box, the lifting plate and the sliding plate are arranged, so that the experimental mouse can be quickly clamped and limited through the lifting plate and the sliding plate, the limited experimental mouse in the containing cavity can be quickly lifted to the upper portion, a user can conveniently and quickly take out the experimental mouse from the experimental box, the situation that the user is injured due to stress reaction of the experimental mouse is avoided, and safety is 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.

A laboratory mouse subcutaneous injection fixing device comprises a workbench, a fixed housing, a positioning support rod, a movable plate, a positioning lock sleeve, a threaded support rod and a fastening retaining ring, an injection opening is formed in the upper portion of the fixed housing, a bearing plate is arranged on the lower portion of the fixed housing, a plurality of supporting legs are connected to the lower portion of the bearing plate, the supporting legs are connected with balancing weights, and a limiting baffle is arranged on the upper portion of the bearing plate. The limiting baffle is connected with the workbench, the lower portion of the workbench is connected with the bearing plate, the bearing plate is provided with sliding blocks, the two sides of the workbench are provided with sliding ways, the sliding blocks are matched with the sliding ways, the sliding blocks are connected with the sliding ways, the sliding blocks slide on the sliding ways, the sliding ways are provided with sliding grooves, the sliding grooves are matched with the rollers, the rollers are connected with the sliding grooves, and the rollers slide on the sliding grooves and are connected with the sliding blocks through shaft rods. The shaft rod is sequentially connected with the sliding block and the roller.

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 utility model discloses a perfusion fixing device for animal experiments. The perfusion fixing device comprises a base; two first threaded cylinders are arranged on the first threaded rod; each second threaded rod is provided with two second threaded cylinders; the supporting plate is arranged between the pair of second threaded rods; and the head fixing plate is arranged at the top of the base. According to the perfusion fixing device provided by the utility model, the positions of the four limb fixing pieces, the position of the head fixing piece and the height of the supporting plate can be adjusted according to the body sizes of laboratory mice, so that the laboratory mice with different body sizes can be stably clamped, and the application range of the perfusion fixing device is greatly expanded; the device can be widely popularized and applied in the field of animal experiment equipment.

The utility model relates to the technical field of experimental mouse cages, and discloses an experimental mouse observation cage that is convenient for recording, including a bottom plate and a support plate, the top of the bottom plate is slidably connected to an observation cage body, the bottom of the bottom plate is fixedly connected to a collection bucket, the top of the support plate is provided with a collection bottle located at the lower side of the collection bucket, the inner side wall of the observation cage body is slidably connected to a connecting frame, the front side of the connecting frame is fixedly connected to a first motor, the output shaft of the first motor is fixedly connected to a cleaning brush, the cleaning brush and the connecting frame drive the internal rotation connection, the inner rear side wall of the observation cage body is fixedly connected to a second motor, and the output shaft of the second motor is fixedly connected to a first unidirectional threaded rod. The experimental mouse observation cage that is convenient for recording has the advantages of timely cleaning mouse feces out of the observation cage, making the experimental observation data more comprehensive.

The utility model provides a laboratory mouse sterile feeding isolator, which comprises a mounting bracket, a feeding device, an isolating device, an isolating device, an isolating device and a control device, wherein the mounting bracket is provided with a feeding space; the storage device is connected with the feeding space and comprises a storage cavity provided with a first storage opening and a second storage opening; the first opening and closing device is arranged at the first storage opening; the second opening and closing device is arranged at the second storage opening; the second opening and closing device comprises a second opening and closing door; the hook is arranged on the side, close to the second opening and closing door, of the storage cavity; the fixing piece is arranged on the side, away from the storage cavity, of the second opening and closing door, and a kidney-shaped hole is formed in the fixing piece; the connecting rod penetrates through the kidney-shaped hole, and when the second opening and closing door is closed, the connecting rod is arranged on the hook; and the rotating piece is arranged on the connecting rod in a sleeving mode, and the rotating piece and the connecting rod are eccentrically arranged. According to the embodiment of the utility model, the operation convenience of experimenters is improved.

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.

A rat and mouse fixing device is used for meeting the requirement for fixing an operation model animal with a device on the back, improving the comfort degree of fixing an experimental mouse, reducing animal stress, prolonging the service life of the model animal, improving the test operation efficiency and enabling test data to be more accurate. Which comprises a cylinder capable of containing a laboratory mouse, a conical thin shell is fixedly arranged at the front end of the cylinder, and vent holes are formed in the shell wall of the conical thin shell at intervals, and is characterized in that an annular groove which annularly extends from the top to the two sides by a certain arc length is formed in the front portion of the cylinder, and a longitudinal groove which longitudinally extends forwards from the rear end is formed in the top of the cylinder; the annular groove and the longitudinal groove are communicated to form a T-shaped groove; and a mouse blocking mechanism capable of moving along the longitudinal groove is arranged at the rear part of the cylinder.

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 a laboratory mouse fixing device which comprises a fixing table, a glass plate is fixedly mounted at the top of the fixing table, a water outlet is formed in the top of the fixing table, and a fixing mechanism is arranged at the top of the fixing table. According to the fixing device for the laboratory mouse, the laboratory mouse is placed on the glass plate and is slightly pressed and fixed by an experimenter, the controller drives the electric push rod to drive the living body scanner to move downwards, so that the laboratory mouse is scanned, the controller drives the motor to start according to a scanning result after scanning is completed, and then the multiple sets of fixing clamps can be driven to move in the opposite directions; in the experiment process or after the experiment is completed, the controller can be operated to drive the booster pump to start the water in the water tank to be guided into the water collecting box through the water inlet pipe and sprayed out through the spray head, and the water in the water tank is sprayed out through the spray head. Excrement of the laboratory mouse on the glass plate is flushed.

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 utility model relates to the technical field of experimental anesthesia instruments, and discloses an experimental mouse multi-channel anesthesia device which comprises a main channel, the two sides and the tail end of the main channel are communicated with a plurality of auxiliary channels, the tail ends of the auxiliary channels are communicated with anesthetic gas inlet pipes, temporary sealing assemblies are arranged in inner cavities of the auxiliary channels, and the auxiliary channels are communicated with the anesthetic gas inlet pipes. When the laboratory mouse moves in the auxiliary channel, the temporary sealing assembly can be triggered, the temporary sealing assembly prevents another laboratory mouse from entering the auxiliary channel again and enables the auxiliary channel to be in a sealed state, and a luring assembly is arranged at the position, close to the tail end, of an inner cavity of the auxiliary channel and used for luring the laboratory mouse to move along the auxiliary channel. According to the utility model, laboratory mice in the main channel can be shunted through the auxiliary channel, so that anesthetic gas can be independently input into each mouse in the auxiliary channel, the anesthetic cost is effectively saved, and meanwhile, different laboratory mice can be prevented from interfering with one another.

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 invention provides a magnetic nerve regulation and control experimental device for heat habit and heat stroke research. The magnetic nerve regulation and control experimental device comprises a rack, an experimental cabin, a magnetic field generation mechanism and a driving mechanism. The experiment module is arranged on the rack, the magnetic field generation mechanism is arranged on the rack, and the magnetic field generation mechanism is used for generating a magnetic field in the experiment module. The driving mechanism is used for driving the magnetic field generation mechanism to rotate to realize magnetic field rotation. The magnetic field generating mechanism is driven by the driving mechanism to rotate, so that a rotating magnetic field is formed in the experiment module, the rotating magnetic field rotates at 180 degrees / s, neuronal regulation and control are realized in combination with the magnetic nanoparticles, and the body temperature of the experiment mouse is controlled. Compared with a two-photon optogenetics technology in the prior art, neuron noninvasive regulation and control can be achieved, the survival time of laboratory mice is long, the monitoring time is long, and large sample experiments can be conducted.