Combined type large animal negative pressure protection suction exposure restraint device
By designing a combined negative pressure protective inhalation exposure restraint device for large animals, the problem of large animal fixation was solved, the stability and safety of large animal inhalation exposure experiments were achieved, and the risk of aerosol leakage was avoided.
Patent Information
- Application Number
- CN202422691469.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing restraint devices are mainly suitable for small animals such as mice, and there is a lack of stable restraint devices suitable for large animals such as dogs and sheep, which makes it difficult to conduct inhalation exposure experiments on large animals.
A combined negative pressure protective inhalation exposure restraint device for large animals was designed, including a face mask, a negative pressure head hood box, and a fixation cart. The face mask is connected to the negative pressure head hood box through an airflow channel. The fixation cart is used to fix the animal's limbs. The negative pressure head hood box keeps the face mask in a negative pressure environment to prevent aerosol leakage. The device is equipped with an observation window and a stackable cart frame to accommodate animals of different sizes.
This method achieves stable fixation of large animals, ensuring the smooth conduct of inhalation exposure experiments, and prevents aerosol leakage to the outside world through a negative pressure environment, thus ensuring experimental safety.
Smart Images
Figure CN223944519U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of inhalation exposure animal restraint device, in particular to a combined large animal negative pressure protection inhalation exposure restraint device. BACKGROUND
[0002] Generally speaking, inhalation toxicology experiment is to simulate the way of workers and residents contacting toxic substances, to carry out static or dynamic inhalation exposure of industrial chemicals in production operation environment and environmental pollutants in atmospheric environment of residential area, to obtain inhalation toxicology data, including inhalation toxicity (such as median lethal concentration, harmless action concentration, etc.) mechanism and experimental treatment results, which is an important basis for formulating harmful substances in workshop air and residential atmospheric environment. At present, in various scientific researches related to inhalation toxicology, especially some harmful substances to human health, such as PM2.5, etc., since they cannot be directly or firstly experimented on humans, experimental animals are often used for inhalation exposure evaluation. Therefore, animal inhalation exposure device has wide application in industry, agriculture, medicine, environmental pollution and military scientific research.
[0003] However, in the animal inhalation exposure laboratory, the experimental animals need to be fixed, and the existing fixing device is mainly suitable for small animals such as mice, and there is no suitable fixing device for large animals such as dogs, sheep, etc. How to stably fix large animals is a problem to be solved in the field. CONTENT OF THE INVENTION
[0004] In view of the above problems, the present application is proposed to provide a combined large animal negative pressure protection inhalation exposure restraint device to overcome the above problems or at least partially solve the above problems.
[0005] The combined large animal negative pressure protection inhalation exposure restraint device provided by the present application adopts the following technical scheme:
[0006] The combined large animal negative pressure protection inhalation exposure restraint device comprises a mask, a negative pressure head cover box and a fixing vehicle, the mask comprises an airflow channel and a cover body connected therewith, an air outlet is arranged on the cover body in communication, and an elastic fixing sleeve with a neck opening is arranged on the side of the cover body away from the airflow channel;
[0007] The negative pressure head cover box is used for accommodating the mask, and comprises a box body and a flexible neck sleeve connected therewith, and a negative pressure air outlet is arranged on the box body;
[0008] The fixed vehicle comprises a vehicle frame, an abdominal support platform and a leg support platform arranged in the vehicle frame in sequence from top to bottom, the negative pressure head cover box is hinged to one end of the top of the vehicle frame, the abdominal support platform is provided with leg holes for the legs of experimental animals to pass through, and the leg support platform is provided with binding holes for binding the limbs of experimental animals.
[0009] Optionally, the airflow channel is provided with a sampling port near one end of the cover body.
[0010] Optionally, one end of the elastic fixing sleeve of the cover body is arranged in an inclined manner.
[0011] Optionally, the box body is provided with an observation window, and the observation window and the box body are connected by magnetic attraction.
[0012] Optionally, the box body is provided with a strip-shaped hole along the length direction of the bottom of the box body, and the box body is further provided with a brush strip for plugging the strip-shaped hole.
[0013] Optionally, the abdominal support platform and the leg support platform can slide vertically along the vehicle frame.
[0014] Optionally, a plurality of vehicle frames can be arranged in a stacked manner.
[0015] In summary, the present application has the following beneficial technical effects: the present application provides a fixing device capable of stably fixing large animals, thereby meeting the needs of inhalation exposure experiments of large animals. Meanwhile, the negative pressure head cover box is arranged to accommodate the face mask, so that the face mask is in a negative pressure environment during the inhalation exposure experiment and does not directly contact the external environment, thereby effectively avoiding the leakage of aerosol to the external environment and causing danger to the experimenters. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.
[0017] Figure 2 is a schematic diagram of the structure of the face mask in the embodiment of the present application.
[0018] Figure 3 is a schematic diagram of the structure of the negative pressure head cover box in the embodiment of the present application.
[0019] Marked as follows: 1, face mask; 11, airflow channel; 111, sampling port; 12, cover body; 121, air suction port; 122, elastic fixing sleeve; 123, fixing hole; 2, negative pressure head cover box; 21, box body; 211, negative pressure air suction port; 212, strip-shaped hole; 213, observation window; 22, flexible neck sleeve; 3, fixed vehicle; 31, vehicle frame; 32, abdominal support platform; 321, leg hole; 33, leg support platform; 331, binding hole. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are one embodiment of this invention, and not all embodiments. Based on the described embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0021] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
[0022] This embodiment provides a combined negative pressure protective inhalation and exposure restraint device for large animals.
[0023] Reference Figure 1 , Figure 2 A combined large animal negative pressure protective inhalation exposure restraint device includes a face mask 1, a negative pressure head hood box 2, and a restraint cart 3. The face mask 1 is worn on the head of the experimental animal, the negative pressure head hood box 2 is used to contain the face mask 1, and the restraint cart 3 is used to place the animal and restrain its limbs. The negative pressure head hood box 2 is mounted on the restraint cart 3.
[0024] Reference Figure 2 The mask 1 includes an airflow channel 11 and a cover 12. The airflow channel 11 and the front end of the cover 12 are connected. An air extraction port 121 is provided on the cover 12. An elastic fixing sleeve 122 with a neck opening is provided on the side of the cover 12 away from the airflow channel 11 to stably wear the mask 1 on the animal's head.
[0025] The mask 12 has a plurality of fixing holes 123 evenly arranged along its circumferential direction on the side near the elastic fixing sleeve 122. The fixing holes 123 are used to thread Velcro, ropes, etc., so as to tie and fix the mask to the experimental animal by Velcro, ropes, etc., to further ensure the wearing stability of the mask 1.
[0026] To accurately detect the concentration of substances exposed to the mouth and nose of experimental animals during the experiment, a sampling port 111 is connected to one end of the airflow channel 11 near the cover 12. At the same time, in order to adapt to the mouth shape of the experimental animals and avoid the cover 12 from obstructing the animals, thereby helping to stabilize the animals' emotions, the side of the cover 12 connected to the elastic fixing sleeve 122 is set at an angle.
[0027] Reference Figure 3 The negative pressure hood box 2 includes a box body 21 and a flexible neck collar 22. The box body 21 is equipped with a negative pressure exhaust port 211 to keep the mask 1 in a negative pressure environment during animal exposure experiments, so as to prevent aerosol leakage into the external environment and avoid danger to the experimental personnel.
[0028] The flexible neck cover 22 is arranged in communication with the box 21, and a front end of the flexible neck cover 22 is provided with a loose rope, and a rear end of the flexible neck cover 22 is provided with a tightening rope, so that the flexible neck cover 22 can meet the fastening needs of animals of different sizes, and at the same time ensure that the flexible neck cover 22 is closely matched with the position of the animal neck.
[0029] The box 21 is provided with a strip-shaped hole 212 along the length direction of the bottom of the box 21, and a brush strip for plugging the strip-shaped hole 212 is further arranged on the box 21, so that the pipeline can be connected with the air flow channel 11, the air suction port 121 or the sampling port 111, and the box 21 has a certain airtightness.
[0030] The box 21 is further provided with an observation window 213, and the observation window 213 is connected to the box 21 by magnet adsorption, so that the observation window 213 can be conveniently disassembled, and the experimenter can observe the animal reaction and adjust the face mask 1 and the pipeline during the experiment.
[0031] With reference to Figure 1 The fixing trolley 3 includes a frame 31, an abdominal support platform 32 and a leg support platform 33, the box 21 is hingedly connected to one end of the top of the frame 31, the abdominal support platform 32 and the leg support platform 33 are arranged in the frame 31 in sequence from top to bottom, and both of them are vertically slidably connected to the frame 31, so as to meet the fixing needs of the limbs of animals of different sizes.
[0032] The abdominal support platform 32 can be made of flexible cloth, and leg holes 321 for the legs of the experimental animals to pass through are arranged at the four corners of the abdominal support platform 32, and binding holes 331 for the ropes to pass through are arranged at the four corners of the leg support platform 33, so that the limbs of the animals can be fixed on the fixing trolley 3 through the abdominal support platform 32 and the leg support platform 33.
[0033] With reference to Figure 1 Universal wheels are arranged at the four corners of the bottom of the frame 31, so as to move the fixing trolley 3. Meanwhile, the frames 31 can be stacked, so as to effectively save the experimental space when multiple exposure experiments are carried out. The application provides a simple connection mode: a plug rod can be arranged at the four corners of the bottom of the frame 31, the plug rod is insertably connected with the universal wheel, and a plug slot can be arranged at the four corners of the top of the frame 31, the plug slot is used for inserting the plug rod, and the frames 31 can be stacked by using the plug rod and the plug slot, so as to realize the stacking of the fixing trolleys 3.
[0034] In actual application, in order to improve the connection stability between the frames 31, a special connecting piece can also be arranged for connection.
[0035] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.
Claims
1. A combined negative pressure containment and inhalation exposure device for large animals, characterized in that: The utility model relates to a negative pressure head cover box fixing trolley for experimental animals, which comprises a mask (1), a negative pressure head cover box (2) and a fixing trolley (3), wherein the mask (1) comprises an air flow channel (11) and a cover body (12) connected therewith, the cover body (12) is provided with an air outlet (121) in communication, and the side of the cover body (12) away from the air flow channel (11) is provided with an elastic fixing sleeve (122) with a neck opening; the negative pressure head cover box (2) is used for accommodating the mask (1) and comprises a box body (21) and a flexible neck cover (22) connected therewith, and the box body (21) is provided with a negative pressure air outlet (211); the fixing trolley (3) comprises a trolley frame (31) and an abdominal support platform (32) and a leg support platform (33) arranged in the trolley frame (31) in sequence from top to bottom, the negative pressure head cover box (2) is hinged to one end of the top of the trolley frame (31), the abdominal support platform (32) is provided with a leg hole (321) for the legs of an experimental animal to pass through, and the leg support platform (33) is provided with a binding hole (331) for binding and fixing the limbs of an experimental animal.
2. The combination negative pressure protective inhalation exposure restraint device for large animals of claim 1, wherein: The air flow channel (11) is provided with a sampling port (111) close to one end of the cover body (12).
3. The combination large animal negative pressure containment inhalation exposure restraint device of claim 1, wherein: The cover body (12) is provided with the elastic fixing sleeve (122), and one end of the cover body (12) is inclined.
4. The combination negative pressure containment inhalation exposure restraint device for large animals of claim 1, wherein: The box body (21) is provided with an observation window (213), and the observation window (213) and the box body (21) are connected by magnetic attraction.
5. The combination negative pressure protective inhalation exposure restraint device for large animals of claim 1, wherein: The bottom of the box body (21) is provided with a strip-shaped hole (212) along the length direction thereof, and the box body (21) is further provided with a brush strip for plugging the strip-shaped hole (212).
6. The combination negative pressure protective inhalation exposure restraint device for large animals of claim 1, wherein: The abdominal support platform (32) and the leg support platform (33) can vertically slide along the trolley frame (31).
7. The combination negative pressure protective inhalation exposure restraint device for large animals of claim 1, wherein: A plurality of trolley frames (31) can be stacked.