Multifunctional electric laboratory mouse fixing device

Abstract

The utility model relates to the field of experimental instruments, and discloses a multifunctional electric laboratory mouse fixing device which comprises a first fixing piece, a second fixing piece, a third fixing piece and a fourth fixing piece. The second fixing piece is internally provided with a cavity, two ends of the second fixing piece are opened, and the second fixing piece is detachably arranged at one end of the first fixing piece and used for fixing the head of the laboratory mouse; the air bag is arranged on the inner wall of the cavity of the first fixing part and compresses the trunk of the laboratory mouse after being inflated and expanded; the controller is arranged on the outer side wall of the first fixing piece and used for controlling inflation and deflation of the air bag; the pressure sensor is arranged on the air bag and used for sensing the pressure in the air bag, the pressure sensor is electrically connected with the controller, and when it is detected that the pressure in the air bag reaches a preset value, an electric signal for stopping inflation is transmitted to the controller. The fixing device is reasonable in design and diversified in purpose, and inconvenience caused by instinct resistance of the laboratory mouse to the experiment can be avoided.

Description

Technical Field

[0001] The present application relates to the field of experimental instruments, and more specifically, to a multifunctional electric experimental mouse fixing device. Background Art

[0002] Medical workers often use animal experiments to explore the occurrence and development mechanisms of diseases. Mice are commonly used subjects for animal experiments. Some experimental steps require mice to be fixed before the operation can be performed. Therefore, mouse fixers are often used as experimental equipment to fix mice.

[0003] At present, most of the laboratory mouse fixation devices on the market use manual fixation by rotating screws. The size of the fixator cannot be adjusted according to the body size of the laboratory mouse. After the laboratory mouse enters the fixator, the operator does not have time to manually fix it, and the body of the laboratory mouse may rotate immediately. If the body position is shifted, it will affect the experimental operation. In addition, the head fixing structure of most traditional fixation devices will place the head inside the device. If the operation is improper, the head fixing structure will cause the laboratory mouse to be injured or even have a broken neck, thereby affecting the experiment. In summary, the existing fixators have the following defects: ① The size of the fixator is single and cannot adapt well to laboratory mice of different sizes; ② The fixation requires manual operation and cannot be fixed in time; ③ The exposed skin area of ​​the laboratory mouse after fixation is small, which is limited to some experimental operations.

[0004] Therefore, there is an urgent need for a multifunctional electric laboratory mouse fixing device to solve the above-mentioned defects. Utility Model Content

[0005] In order to improve the above-mentioned defects existing in the prior art, the present application provides a multifunctional electric experimental mouse fixing device, which fixes experimental mice of different sizes through automatically inflated airbags and exposes multiple body parts of the experimental mice, thereby facilitating subsequent multiple experimental operations.

[0006] The present application provides a multifunctional electric laboratory mouse fixing device, comprising:

[0007] The first fixing member has a cavity inside and openings at both ends, and is used to fix the trunk of the experimental mouse;

[0008] A second fixing member, which has a cavity inside and openings at both ends, is detachably arranged at one end of the first fixing member and is used to fix the head of the experimental mouse;

[0009] An airbag, arranged on the inner wall of the cavity of the first fixing member, which compresses the trunk of the experimental mouse after being inflated;

[0010] A controller, disposed on an outer side wall of the first fixing member, for controlling the inflation and deflation of the airbag; and

[0011] A pressure sensor is arranged on the airbag and is used to sense the pressure in the airbag. The pressure sensor is electrically connected to the controller and transmits an electrical signal to the controller to stop inflation when it is detected that the pressure in the airbag reaches a preset value.

[0012] Optionally, the first fixing member includes a flat bottom and an arc top which are connected to each other, the flat bottom is opposite to the abdomen of the experimental mouse, and the arc top is opposite to the back of the experimental mouse.

[0013] Optionally, the second fixing member is tapered, and a diameter of the second fixing member gradually decreases from a direction close to the first fixing member to a direction away from the first fixing member.

[0014] Optionally, the second fixing member is a transparent tubular structure.

[0015] Optionally, the detachable connection structure between the first fixing member and the second fixing member is a snap-on connection structure.

[0016] Optionally, the snap-on connection structure comprises:

[0017] A socket is provided on the end wall of the second fixing member;

[0018] A movable hole is provided on the side wall of the second fixing member and is communicated with the socket;

[0019] A button, movably disposed in the movable hole;

[0020] A limit block, arranged in the movable hole, for limiting the movable distance of the button;

[0021] A locking rod, comprising a sliding portion connected to the bottom end of the button and a fixing portion arranged at the bottom end of the sliding portion;

[0022] A spring is arranged in the movable hole and sleeved outside the sliding portion, and two ends of the spring are respectively against the limit block and the button;

[0023] A clearance groove is provided at the bottom end of the inner side wall of the socket and is located at the bottom of the movable hole, and the fixing portion is slidably matched with the clearance groove;

[0024] an insert block, disposed on the end wall of the first fixing member and plugged into and mated with the socket; and

[0025] A locking hole is provided at the end of the plug block and is matched with the fixing portion of the locking rod. When the locking rod is locked with the locking hole, the plug block is fixed in the socket.

[0026] Optionally, the multifunctional electric laboratory mouse fixing device further includes:

[0027] The fixing plate is arranged on the bottom side of the first fixing member and is used to fix the fixing device on the operating table.

[0028] Optionally, the multifunctional electric laboratory mouse fixing device further includes:

[0029] A heart rate sensor is arranged on the airbag and is used to sense the heart rate of the experimental mouse. The heart rate sensor is electrically connected to the controller, and the controller is provided with a switch for controlling the opening and closing of the heart rate sensor.

[0030] The display terminal is arranged on the outer side wall of the first fixing member and is electrically connected to the heart rate sensor, and is used for receiving the electrical signal of the heart rate sensor and displaying the heart rate of the experimental mouse.

[0031] In summary, this application has the following beneficial effects:

[0032] 1. The multifunctional electric laboratory mouse fixing device of the present application uses an airbag to fix the laboratory mouse, and can adapt to the fixation of laboratory mice of different sizes by adjusting the preset pressure value of the pressure sensor;

[0033] 2. By using a controller to control the inflation and deflation of the airbag, the time of manual fixation is saved, the experimental mouse can be quickly fixed, and the occurrence of the situation where the experimental operation is affected by the position deviation caused by the rotation of the experimental mouse is effectively reduced;

[0034] 3. By opening the front end of the second fixing part, it is convenient to conduct animal breathing and nasal pain stimulation behavior test experiments; by detachably connecting the first fixing part and the second fixing part, after the second fixing part is removed, drug injections on the face of the experimental mouse, subcutaneous injections in the neck, etc. can be performed; and after the experimental mouse is fixed, its buttocks and tail are exposed to facilitate intraperitoneal injections, tail vein injections, tail vein blood sampling and tail pain reaction tests, etc., which meets most experimental operation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of a multifunctional electric laboratory mouse fixing device in Example 1 of the present application;

[0036] Figure 2 is a cross-sectional view of a multifunctional electric laboratory mouse fixing device in Example 1 of the present application;

[0037] Figure 3 is a schematic diagram of the snap-on connection structure in Example 1 of the present application;

[0038] Figure 4 This is a schematic diagram of the overall structure of a multifunctional electric laboratory mouse fixing device in Example 2 of the present application;

[0039] Figure 5It is a cross-sectional view of a multifunctional electric laboratory mouse fixing device in Example 2 of the present application.

[0040] Figure numerals: 1. first fixing member; 101. flat bottom; 102. arc top; 2. second fixing member; 3. airbag; 4. controller; 5. pressure sensor; 6. socket; 7. movable hole; 8. button; 9. limit block; 10. locking rod; 1001. sliding part; 1002. fixing part; 11. spring; 12. clearance groove; 13. plug block; 14. locking hole; 15. fixing plate; 16. heart rate sensor; 17. display terminal. DETAILED DESCRIPTION

[0041] The structure and effect of the present application are further described in detail below in conjunction with the embodiments. It is to be understood that the specific embodiments described herein are only used to explain the invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention rather than the entire structure are shown in the accompanying drawings.

[0042] Example 1

[0043] The present application embodiment discloses a multifunctional electric laboratory mouse fixing device, referring to Figure 1 , the fixing device includes a first fixing part 1 and a second fixing part 2 which are detachably connected. The first fixing part 1 and the second fixing part 2 are both tubular structures with cavities provided inside and openings provided at both ends. In order to facilitate observation of the head of the experimental mouse, the second fixing part 2 can be made of a red or brown transparent material. Furthermore, the first fixing part 1 includes a flat bottom part 101 and an arc top part 102 which are integrally connected. The flat bottom part 101 is located below the arc top part 102. When the experimental mouse is fixed, the flat bottom part 101 is opposite to the abdomen of the experimental mouse, and the arc top part 102 is opposite to the back of the experimental mouse; the second fixing part 2 is conical, and its diameter gradually decreases from the direction close to the first fixing part 1 to the direction away from the first fixing part 1. In actual use, the torso of the experimental mouse is fixed in the first fixing piece 1, the head of the experimental mouse is fixed in the second fixing piece 2, the buttocks and tail of the experimental mouse are exposed at the tail end of the first fixing piece 1, so as to facilitate intraperitoneal injection, tail vein injection, tail vein blood sampling and tail pain reaction test, etc. The nose of the experimental mouse is exposed at the front end of the second fixing piece 2, so as to facilitate animal breathing and nasal pain stimulation behavior test experiments.

[0044] Reference Figure 1 and Figure 2An airbag 3 is fixedly arranged on the inner wall of the cavity of the first fixing member 1. After the airbag 3 is inflated, it exerts pressure on the experimental mouse, thereby fixing the experimental mouse. In order to realize the automatic inflation and deflation of the airbag 3, a controller 4 is also arranged on the outer wall of the first fixing member 1. The controller 4 includes a switch for controlling the inflation and deflation of the airbag 3. Furthermore, a pressure sensor 5 is also arranged on the airbag 3. The pressure sensor 5 is electrically connected to the controller 4. The pressure sensor 5 is used to sense the pressure in the airbag 3. When it is detected that the pressure in the airbag 3 reaches a preset value, an electrical signal for stopping inflation is transmitted to the controller 4. After receiving the electrical signal, the controller 4 automatically stops inflation. It is worth noting that the above-mentioned pressure sensor 5, controller 4, and airbag 3 are all prior art, and it can be understood that the inflation and deflation of the airbag 3 requires the use of an existing inflation and deflation device.

[0045] Reference Figure 1 and Figure 3 The detachable connection structure between the first fixing member 1 and the second fixing member 2 is a snap-on connection structure. In this embodiment, the snap-on connection structure includes a socket 6 provided on the end wall of the second fixing member 2, a movable hole 7 provided on the side wall of the second fixing member 2 and connected to the socket 6, a button 8 movably provided in the movable hole 7, a stopper 9 provided in the movable hole 7 and used to limit the movable distance of the button 8, a locking rod 10 provided at the bottom end of the button 8, a spring 11 provided in the movable hole 7 and sleeved outside the locking rod 10, a clearance groove 12 provided at the bottom end of the inner side wall of the socket 6 and located at the bottom of the movable hole 7, an inserting block 13 provided on the end wall of the first fixing member 1 and plugged with the socket 6, and a locking hole 14 provided at the end of the inserting block 13. The locking rod 10 includes a sliding portion 1001 fixedly connected to the bottom end of the button 8 and a fixing portion 1002 fixedly provided at the bottom end of the sliding portion 1001, and the fixing portion 1002 can slide in the clearance groove 12 along the vertical direction. The locking hole 14 is matched with the fixing portion 1002 of the locking rod 10. When the fixing portion 1002 is locked with the locking hole 14, the plug block 13 is fixed in the socket 6. When the first fixing member 1 and the second fixing member 2 need to be fixed by clamping, the plug block 13 is aligned with the socket 6, and then the button 8 is pressed to make the fixing portion 1002 of the locking rod 10 completely enter the clearance groove 12, and the plug block 13 is inserted into the socket 6 until it is fully inserted. At this time, the end of the plug block 13 is against the sliding portion 1001 of the locking rod 10, and the button 8 is released. The spring 11 drives the button 8 to reset, so that the fixing portion 1002 of the locking rod 10 slides out of the clearance groove 12 and is clamped and fixed with the locking hole 14 of the plug block 13, thereby completing the fixation of the first fixing member 1 and the second fixing member 2. Similarly, when the first fixing member 1 needs to be separated from the second fixing member 2, the button 8 is pressed to allow the fixing portion 1002 of the locking rod 10 to completely enter the clearance groove 12, and then the insert block 13 is pulled out from the socket 6, which is easy to operate.

[0046] Reference Figure 1A fixing plate 15 is also provided on the bottom side of the first fixing member 1. After the experimental mouse is fixed, the fixing device can be fixed on the experimental operating table through the fixing plate 15 to avoid displacement of the fixing device due to twisting of the experimental mouse.

[0047] It is worth noting that in this embodiment, the snap-on connection structure can be set to multiple groups to improve the fixing strength of the first fixing member 1 and the second fixing member 2; similarly, the fixing plate 15 can also be set to multiple groups to improve the fixing strength of the fixing device and the experimental operating table.

[0048] Example 2

[0049] The present application embodiment discloses a multifunctional electric laboratory mouse fixing device, which is different from the embodiment 1 in that: Figure 4 and Figure 5 The fixing device further includes a heart rate sensor 16 and a display terminal 17. The heart rate sensor 16 is arranged on the airbag 3, and is used to sense the heart rate of the experimental mouse. The heart rate sensor 16 is electrically connected to the controller 4, and a switch for controlling the opening and closing of the heart rate sensor 16 is arranged on the controller 4. The display terminal 17 is arranged on the outer wall of the first fixing member 1, and is electrically connected to the heart rate sensor 16, and is used to receive the electrical signal of the heart rate sensor 16 and display the heart rate of the experimental mouse. Such an arrangement facilitates real-time monitoring of the heart rate of the experimental mouse during the experiment.

[0050] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A multifunctional electric laboratory mouse fixing device, characterized in that: include: A first fixing member (1) has a cavity inside and openings at both ends, and is used to fix the trunk of the experimental mouse; A second fixing member (2) has a cavity formed therein and has openings at both ends, and is detachably arranged at one end of the first fixing member (1) and is used to fix the head of the experimental mouse; An air bag (3) is arranged on the inner wall of the cavity of the first fixing member (1) and compresses the trunk of the experimental mouse after being inflated; A controller (4), arranged on the outer side wall of the first fixing member (1), and used for controlling the inflation and deflation of the airbag (3); as well as A pressure sensor (5) is arranged on the airbag (3) and is used to sense the pressure in the airbag (3). The pressure sensor (5) is electrically connected to the controller (4). When it is detected that the pressure in the airbag (3) reaches a preset value, an electrical signal for stopping inflation is transmitted to the controller (4).

2. The multifunctional electric laboratory mouse fixing device according to claim 1 is characterized in that: The first fixing member (1) comprises a flat bottom portion (101) and an arc top portion (102) which are connected to each other, wherein the flat bottom portion (101) is opposite to the abdomen of the experimental mouse, and the arc top portion (102) is opposite to the back of the experimental mouse.

3. The multifunctional electric laboratory mouse fixing device according to claim 1, characterized in that: The second fixing member (2) is tapered, and the diameter of the second fixing member (2) gradually decreases in a direction from approaching the first fixing member (1) to moving away from the first fixing member (1).

4. The multifunctional electric laboratory mouse fixing device according to claim 1 or 3, characterized in that: The second fixing member (2) is a transparent tubular structure.

5. The multifunctional electric laboratory mouse fixing device according to claim 1, characterized in that: The detachable connection structure between the first fixing member (1) and the second fixing member (2) is a snap-on connection structure.

6. The multifunctional electric laboratory mouse fixing device according to claim 5, characterized in that: The snap-on connection structure comprises: A socket (6) is provided on the end wall of the second fixing member (2); A movable hole (7) is formed on the side wall of the second fixing member (2) and is connected to the socket (6); A button (8) movably arranged in the movable hole (7); A limit block (9) is arranged in the movable hole (7) and is used to limit the movable distance of the button (8); A locking rod (10), comprising a sliding portion (1001) connected to the bottom end of the button (8) and a fixing portion (1002) arranged at the bottom end of the sliding portion (1001); A spring (11) is arranged in the movable hole (7) and sleeved outside the sliding portion (1001), and two ends of the spring (11) are respectively against the limit block (9) and the button (8); A clearance groove (12) is provided at the bottom end of the inner wall of the socket (6) and is located at the bottom of the movable hole (7), and the fixing portion (1002) is slidably matched with the clearance groove (12); an insert block (13), arranged on the end wall of the first fixing member (1) and pluggably engaged with the socket (6); and A locking hole (14) is provided at the end of the insert block (13) and is matched with the fixing portion (1002) of the locking rod (10). When the locking rod (10) is locked with the locking hole (14), the insert block (13) is fixed in the socket (6).

7. The multifunctional electric laboratory mouse fixing device according to claim 1, characterized in that: Also includes: A fixing plate (15) is arranged on the bottom side of the first fixing member (1) and is used to fix the fixing device on the operating table.

8. The multifunctional electric laboratory mouse fixing device according to claim 1, characterized in that: Also includes: A heart rate sensor (16) is arranged on the air bag (3) and is used to sense the heart rate of the experimental mouse. The heart rate sensor (16) is electrically connected to the controller (4). The controller (4) is provided with a switch for controlling the opening and closing of the heart rate sensor (16); A display terminal (17) is arranged on the outer wall of the first fixing member (1), is electrically connected to the heart rate sensor (16), and is used to receive the electrical signal of the heart rate sensor (16) and display the heart rate of the experimental mouse.

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