CN218356456U - Direct type experimental animal euthanasia device - Google Patents
Direct type experimental animal euthanasia device Download PDFInfo
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- CN218356456U CN218356456U CN202222785619.0U CN202222785619U CN218356456U CN 218356456 U CN218356456 U CN 218356456U CN 202222785619 U CN202222785619 U CN 202222785619U CN 218356456 U CN218356456 U CN 218356456U
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Abstract
A direct type experimental animal euthanasia device belongs to the field of animal experimental equipment. Including air feed mechanism, during outside carbon dioxide air supply inserted air feed mechanism, its characterized in that: the air supply mechanism comprises a shell (6), at least one accommodating groove for accommodating the test cage box (3) is formed in the surface of the shell (6), and a cage box butt joint port (13) for directly butt joint with the test cage box (3) is formed in the end face, facing the accommodating groove, of the shell (6); an air supply pipeline for connecting a carbon dioxide gas source and the cage box butt joint port (13) is also arranged in the shell (6). In the direct experimental animal euthanasia device, the test cage box is directly butted with the air supply mechanism to euthanasia the animals in the test cage box, so that the stress reaction of the animals caused by the environmental change when the euthanasia is carried out in the prior art is reduced, and the pain of the animals in the euthanasia process can be reduced to the greatest extent.
Description
Technical Field
A direct type experimental animal euthanasia device belongs to the field of animal experimental equipment.
Background
Euthanasia refers to a method of killing animals with minimal physical and psychological pains due to the loss of consciousness of the animals, and euthanasia is one of important contents of welfare of experimental animals and is suitable for experimental animals such as rats, mice, guinea pigs and hamsters. The problem of animal euthanasia is more and more emphasized for industries which must use experimental animals for research, along with the enhancement of animal protection consciousness and the requirement of animal welfare ethics of human beings, as welfare of experimental animals, particularly experimental mice. According to the evaluation criteria of the American society of veterinary medicine (AVMA) on euthanasia, animals must be euthanasia on the principle of alleviating the suffering of experimental animals on the premise of ensuring that the welfare of the animals conforms to ethical morals.
In the prior art, the euthanasia of experimental animals is generally realized by introducing carbon dioxide, and the current technical scheme for realizing the euthanasia of animals has the following defects: when the experimental animals are euthanized, the experimental animals in different rearing cage boxes are usually transferred to a special euthanization cage box for euthanization, however, the experimental animals generate stress reaction due to the change of environment during and after the transfer of the animals, and the real euthanization of the experimental animals cannot be realized.
The experimental animal is an important participant in clinical medicine and in the new research and development of drug tests, and plays an important role in human medicine and disease treatment. Therefore, the technical scheme capable of furthest reducing the animal euthanasia pain in the process of euthanasia after the experiment is completed is designed, and the problem to be solved in the field is urgently solved.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the device overcomes the defects of the prior art, provides a direct experimental animal euthanasia device, and the test cage box is directly butted with the air supply mechanism to euthanasia the animal in the test cage box, so that the stress reaction of the animal caused by the environmental change when euthanasia is implemented in the prior art is reduced, and the pain of the animal in the euthanasia process can be reduced to the greatest extent.
The utility model provides a technical scheme that its technical problem adopted is: this direct type experimental animals euthanasia device, including air feed mechanism, during outside carbon dioxide air supply inserts air feed mechanism, its characterized in that: the air supply mechanism comprises a shell, at least one accommodating groove for accommodating the test cage box is formed in the surface of the shell, and a cage box butt joint port for being directly butted with the test cage box is formed in the end face, facing the accommodating groove, of the shell; an air supply pipeline for connecting a carbon dioxide source and the butt joint of the cage box is also arranged in the shell.
Preferably, a control system for controlling the on-off state of the air supply pipeline is further arranged in the shell, and the control system comprises a controller.
Preferably, the air supply pipeline comprises a filter, a pressure regulating valve, a one-way valve and electromagnetic valves, wherein the filter, the pressure regulating valve and the one-way valve are sequentially connected through pipelines, the electromagnetic valves correspond to the cage boxes in number one by one, the electromagnetic valves are connected with the controller, an inlet of the filter is connected with a carbon dioxide air source, and an outlet of each electromagnetic valve is connected with a butt joint of each cage box.
Preferably, a top cover is arranged on the surface of the shell, a display screen is arranged on the surface of the top cover, and the display screen is connected with the controller.
Preferably, the cage box butt joint port comprises an air inlet joint and an air outlet joint which are respectively in butt joint with the test cage box, an outlet of the electromagnetic valve is connected with the air outlet joint in the cage box butt joint port in the shell, the air inlet joint is connected with a sensor used for detecting the concentration of carbon dioxide in the air outlet of the test cage box in the shell, and the sensor is connected with the controller.
Preferably, a sensor used for being connected with the controller and detecting the concentration of carbon dioxide in the room is further arranged in the shell.
Preferably, the air supply mechanism comprises a bottom plate, at least one group of support plates are arranged on the surface of the bottom plate side by side, and the holding grooves are formed in the surface of the bottom plate at intervals by each group of support plates.
Preferably, a photoelectric switch is arranged on the surface of the shell and below the cage box butt joint, and the photoelectric switch is connected with the controller.
Preferably, the test cage box include the box body, be provided with air inlet and gas outlet side by side on box body upper portion, air inlet and gas outlet respectively with the cage box joint to the joint in giving vent to anger connect with the air inlet joint butt joint.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. in the direct experimental animal euthanasia device, the test cage box is directly butted with the air supply mechanism to euthanasia the animals in the test cage box, so that the stress reaction of the animals caused by the environmental change when the euthanasia is carried out in the prior art is reduced, and the pain of the animals in the euthanasia process can be reduced to the greatest extent.
2. The photoelectric switch for detecting the test cage box is arranged on the surface of the shell, and when the test cage box is placed into the corresponding test cage box, carbon dioxide gas is sent into the corresponding test cage box after the corresponding photoelectric switch is triggered, so that the fact that the independent test cage box is deadly to peaceful work can be achieved.
3. Through setting up second concentration sensor, be convenient for detect the carbon dioxide concentration in the environment, guaranteed indoor operating personnel's safety.
Drawings
Fig. 1 is an axonometric view of a direct euthanasia device for experimental animals.
Fig. 2 is an isometric view of the direct laboratory animal euthanasia apparatus with the housing omitted.
FIG. 3 is an axonometric view of the air supply mechanism of the direct type experimental animal euthanasia device.
Fig. 4 is an axonometric view of a direct laboratory animal euthanasia device test cage box.
Wherein: 1. the device comprises a display screen 2, a top cover 3, a testing cage box 4, a supporting plate 5, a bottom plate 6, a shell 7, a first concentration sensor 8, an electromagnetic valve 9, a one-way valve 10, a pressure regulating valve 11, a filter 12, a second concentration sensor 13, a cage box butt joint 14, a photoelectric switch 15, an air outlet 16 and an air inlet.
Detailed Description
Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 4.
As shown in fig. 1, a direct experimental animal euthanasia device (hereinafter referred to as the present system) includes a gas supply mechanism for providing carbon dioxide gas, and a testing cage box 3 directly butted with the gas supply mechanism, wherein after the testing cage box 3 is butted with the gas supply mechanism, the gas supply mechanism automatically introduces carbon dioxide gas into the testing cage box 3, and euthanasia is performed on animals in the testing cage box 3.
As shown in fig. 3, the air supply mechanism comprises a bottom plate 5, a plurality of groups of supporting plates 4 are arranged on the surface of the bottom plate 5 side by side, the supporting plates 4 are vertically fixed on the surface of the bottom plate 5, the supporting plates 4 in each group form accommodating grooves with corresponding number at intervals on the surface of the bottom plate 5, and a testing cage box 3 is placed in each accommodating groove respectively.
A shell 6 is arranged at one end of the bottom plate 5, a top cover 2 is arranged on the surface of the shell 6, a display screen 1 is arranged on the surface of the top cover 2, an air supply cavity is formed by the surface of the bottom plate 5 surrounded by the shell 6 and the top cover 2, and a control circuit and an air supply loop of the system are arranged in the air supply cavity. The control circuit comprises a controller, and the controller is connected with the display screen 1.
Referring to fig. 2, a filter 11, a pressure regulating valve 10, a check valve 9, electromagnetic valves 8 corresponding to the number of the test cage boxes 3, a first concentration sensor 7, and a second concentration sensor 12 are disposed in the air supply chamber, wherein the second concentration sensor 12 is used for detecting the concentration of carbon dioxide in the room, the first concentration sensor 7 is used for detecting the concentration of carbon dioxide in the gas flowing out of the test cage boxes 3, and the output ends of the first concentration sensor 7 and the second concentration sensor 12 are respectively connected to the input end of the controller.
An air supply port connected to an external carbon dioxide gas source is provided at the back of the casing 6, and a filter 11, a pressure regulating valve 10, a check valve 9, and all solenoid valves 8 are connected in this order through pipes (not shown) after the air supply port is inserted into the casing 6. A plurality of groups of cage box butt-joint ports 13 which are used for butt-joint with the corresponding test cage box 3 are arranged on the end face of the shell 6 opposite to the test cage box 3, and each group of cage box butt-joint ports 13 comprises an air inlet joint and an air outlet joint. The outlet of each electromagnetic valve 8 is respectively butted with an air outlet joint in each group of cage box butting ports 13, and the air outlet joint is connected with the corresponding first concentration sensor 7 in the shell 6.
As shown in fig. 4, the test cage box 3 includes a box body for placing the experimental animal, an air inlet 16 and an air outlet 15 are arranged on the upper portion of the box body side by side, and after the test cage box 3 is placed into the corresponding accommodating groove, the air inlet 16 and the air outlet 15 are respectively butted with an air outlet joint and an air inlet joint in the corresponding cage box butt joint 13.
The specific working process and working principle are as follows:
when the animal in the test cage box 3 that needs were tested to the completion is implemented peacefully to die, the staff is handheld the test cage box 3 that corresponds to put into the holding tank that air feed mechanism surface corresponds with test cage box 3, place when test cage box 3 and target in place, and the air inlet 16 on the test cage box 3 and gas outlet 15 respectively with correspond the cage box and connect with the air inlet connection in the butt joint mouth 13 and connect the back with giving vent to anger, the box body shelters from corresponding photoelectric switch 14 simultaneously.
After the photoelectric switch 14 is shielded, a control signal is sent to the controller, the corresponding electromagnetic valve 8 is controlled by the controller to be switched on, at the moment, an external carbon dioxide gas source sequentially passes through the filter 11, the pressure regulating valve 10, the one-way valve 9 and the corresponding electromagnetic valve 8 and then is output from the gas outlet connector and enters the test cage box 3, the raw gas in the test cage box 3 is discharged through the gas outlet connector, the concentration of the carbon dioxide in the exhaust gas is detected by the corresponding first concentration sensor 7, when the concentration of the carbon dioxide in the exhaust gas in the test cage box 3 reaches the preset concentration, and after the preset time lasts, the corresponding electromagnetic valve 8 is closed by the controller, and the operation is finished.
In the process of performing euthanasia, the display screen 1 displays the carbon dioxide concentration of the gas discharged by the test cage box 3, the indoor carbon dioxide concentration and the execution time in real time, and when the indoor carbon dioxide concentration exceeds the standard, the controller closes all the electromagnetic valves 8 in time to protect indoor workers.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a dead device of direct mode experimental animals peace and quiet, includes air feed mechanism, and during outside carbon dioxide air supply inserted air feed mechanism, its characterized in that: the air supply mechanism comprises an outer shell (6), at least one accommodating groove for accommodating the test cage box (3) is formed in the surface of the outer shell (6), and a cage box butt joint port (13) for directly butt joint with the test cage box (3) is formed in the end face, facing the accommodating groove, of the outer shell (6); an air supply pipeline for connecting a carbon dioxide air source and the cage box butt joint port (13) is also arranged in the shell (6).
2. The direct laboratory animal euthanasia device according to claim 1, wherein: and a control system for controlling the on-off state of the air supply pipeline is also arranged in the shell (6), and comprises a controller.
3. The direct laboratory animal euthanasia device according to claim 2, characterized in that: the air supply pipeline comprises a filter (11), a pressure regulating valve (10) and a one-way valve (9) which are sequentially connected through pipelines, and electromagnetic valves (8) which are in one-to-one correspondence with the number of the test cage boxes (3), wherein the electromagnetic valves (8) are connected with a controller, an inlet of the filter (11) is connected with a carbon dioxide air source, and an outlet of the electromagnetic valve (8) is connected with a cage box butt joint (13).
4. The direct laboratory animal euthanasia device according to claim 2, wherein: the surface of the shell (6) is provided with a top cover (2), the surface of the top cover (2) is provided with a display screen (1), and the display screen (1) is connected with the controller.
5. The direct laboratory animal euthanasia device according to claim 3, characterized in that: cage box butt joint mouth (13) including respectively with test cage box (3) butt joint the air inlet connector and give vent to anger to connect, the export of solenoid valve (8) links to each other with the joint of giving vent to anger in cage box butt joint mouth (13) in shell (6), the air inlet connector links to each other with the sensor that is arranged in detecting test cage box (3) to give vent to anger carbon dioxide concentration in the inside of shell (6), this sensor links to each other with the controller.
6. The direct laboratory animal euthanasia device according to claim 2, characterized in that: and a sensor which is connected with a controller and used for detecting the concentration of indoor carbon dioxide is also arranged in the shell (6).
7. The direct laboratory animal euthanasia device according to claim 1, wherein: the air supply mechanism comprises a bottom plate (5), at least one group of supporting plates (4) are arranged on the surface of the bottom plate (5) side by side, and the supporting plates (4) of each group are formed on the surface of the bottom plate (5) at intervals.
8. The direct laboratory animal euthanasia device according to claim 2, characterized in that: and a photoelectric switch (14) is arranged on the surface of the shell (6) and below the cage box butt joint port (13), and the photoelectric switch (14) is connected with the controller.
9. The direct laboratory animal euthanasia device according to claim 5, wherein: the test cage box (3) comprises a box body, wherein an air inlet (16) and an air outlet (15) are arranged on the upper portion of the box body side by side, and the air inlet (16) and the air outlet (15) are respectively butted with an air outlet joint and an air inlet joint in the cage box butt joint (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222785619.0U CN218356456U (en) | 2022-10-22 | 2022-10-22 | Direct type experimental animal euthanasia device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222785619.0U CN218356456U (en) | 2022-10-22 | 2022-10-22 | Direct type experimental animal euthanasia device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218356456U true CN218356456U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222785619.0U Active CN218356456U (en) | 2022-10-22 | 2022-10-22 | Direct type experimental animal euthanasia device |
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| Country | Link |
|---|---|
| CN (1) | CN218356456U (en) |
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2022
- 2022-10-22 CN CN202222785619.0U patent/CN218356456U/en active Active
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