Device for testing arm strength and physical fitness of rats and mice
By using a steel wire chord button combination in the mouse arm power test device, combined with inflatable buffer airbags, the unstable and safety hazards of existing iron suspension experimental devices are solved, and the stability and safety of experiments are achieved. Essence
Patent Information
- Application Number
- CN202421330315.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-01-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing wire suspension experimental devices have problems of instability, experimental error and safety hazards, including system errors caused by wire bending and slack, and the escape of mice in the experiment and the buffering effect is not ideal.
A device for testing arm strength and physical fitness of rats and mice is designed, which uses a combination of steel wires and tuners. The steel wires are adjusted to a tight state through the tuners, and combined with inflatable buffer airbags to ensure the stability and safety of the experiment.
Through the combination of wire chord buttons, the system error caused by iron wire unevenness and relaxation is eliminated, and the stability of the experiment is improved. The inflatable airbags improve the safety buffer effect and ensure the safety of mice.
Smart Images
Figure CN222383210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of animal experimental devices, in particular to a device for testing the arm strength and physical fitness of mice and rats. Background Art
[0002] The Wire Suspension Test Apparatus has applications in the biomedical field, particularly in the evaluation of animal models for neuromuscular disease research. This apparatus has been used to detect and analyze changes in muscle function in diseases such as muscular dystrophy, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, and multiple sclerosis. The Wire Suspension Test Apparatus is designed to assess and quantify upper limb muscle strength and motor coordination in laboratory animals. The apparatus involves testing the animals' suspension endurance and stability on a horizontal wire, measuring how long they remain suspended from the wire and how often they successfully complete the task. These data are used to perform detailed phenotypic analyses, particularly useful for monitoring the progression of disease models and evaluating the effects of potential drug treatments on improving motor function.
[0003] Existing experimental devices or similar designs usually include a wire spanning two pillars, about 50 to 60 cm from the ground, which is used to train mice to hang their bodies by grabbing the wire with their front paws. For safety reasons, a breeding box filled with wood shavings is placed between the two pillars to prevent the mice from accidentally falling and getting injured. The key evaluation indicator, called the "fall latency", refers to the time the mouse remains suspended on the wire until it falls, and this data is used to comprehensively evaluate its athletic performance.
[0004] The main disadvantages of the existing experimental device are:
[0005] (I) Most experimental devices are handmade temporarily, which may cause the wire to bend or crease, and it is impossible to maintain sufficient tension when fixed on the support. Such instability may cause the wire to shake, interfere with the mouse's grasp, and introduce experimental errors.
[0006] (ii) When mice move along the wire and approach the support, they sometimes choose to escape. At this time, artificially relocating the mice to the wire will interrupt their natural behavior and distort the experimental results.
[0007] (iii) When mice fall, they usually rely on wood shavings or other soft materials in the feeding box as a buffer. However, these conditions are not well controlled and the buffering effect may not be ideal. If the buffering area is insufficient, mice may still fall to the ground and get injured, which not only hinders repeated testing but may also affect their ability to participate in other experiments. Utility Model Content
[0008] The utility model aims to provide an arm strength and physical fitness testing device for mice and rats, which can eliminate system errors caused by unevenness and looseness that may occur when using iron wires, ensure the stability of the experiment, and enhance the safety buffer effect.
[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is: a large mouse arm strength physical fitness testing device, including a base, a base connecting rod, a column, a top rod, a steel wire, a string button, and a buffer airbag, wherein:
[0010] The two bases are connected by a base connecting rod, a column is fixedly connected to the base, the tops of the two columns are connected by a top rod, string buttons are symmetrically arranged on the two columns, both ends of the horizontal steel wire are installed on the string columns of the string buttons, and a buffer air bag with an inflation valve is arranged between the two bases.
[0011] In a specific implementation, the tuning pegs can utilize existing technical products on the market, such as tuning pegs on a guitar or similar adjustable tuning pegs. The way the steel wire is installed on the tuning peg post is also consistent with the way the guitar strings are installed on their tuning pegs.
[0012] The method of using the utility model is:
[0013] First, let the mouse's front paws grasp the steel wire to hang its body, start the timing, and stop the timing when the mouse falls. Record the "fall latency", that is, the time the mouse remains suspended on the steel wire until it falls.
[0014] The beneficial effects of the utility model are:
[0015] By using steel wire and tuning knobs, the steel wire can maintain sufficient tension relative to the iron wire, and the tuning knob can easily adjust the steel wire to a taut state, eliminating the system error caused by unevenness and relaxation that may occur when using the iron wire, thereby ensuring the stability of the experiment. By using an inflatable airbag, the safety buffer effect can be improved, and the inflation and deflation operations during the experiment are also convenient.
[0016] Furthermore, the base connecting rod and the top rod are both telescopic rods.
[0017] In this way, it is convenient to adjust the distance between the two columns according to the experimental requirements. When the distance adjustment degree is large, the steel wire needs to be reinstalled.
[0018] Furthermore, the steel wire is a multi-strand steel wire, which is less likely to bend and crease.
[0019] Furthermore, a plurality of string knobs are symmetrically arranged at a certain distance on the two pillars.
[0020] In this way, it is convenient to install the steel wire on string knobs of different heights according to different experimental requirements.
[0021] Furthermore, vertical baffles are fixedly provided on the inner sides of the two columns respectively, and the steel wire passes through the through holes on the baffles.
[0022] In this way, the mice can be effectively prevented from climbing the pillars and escaping during the experiment, thus ensuring the controllability of the experimental process.
[0023] Furthermore, a pressure sensor is installed at the bottom of the cushioning airbag, and the pressure sensor is electrically connected to a timing processing unit, and the timing processing unit has a control button and a display screen.
[0024] When the mouse's front paws grab the steel wire, the control button can be pressed to start the timing processing unit. When the experimental mouse falls from the steel wire onto the cushioning airbag, the pressure sensor converts the changing pressure signal into an electrical signal and transmits it to the timing processing unit. The timing processing unit stops timing, calculates the "fall latency" and displays it on the display.
[0025] The above-mentioned automatic sensing timing function improves the convenience of experimental operation and can provide experimenters with a better working experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a front view of an embodiment of the utility model;
[0027] Figure 2 It is a top view of an embodiment of the utility model;
[0028] Figure 3 This is a schematic diagram of electrical connections of an embodiment of the utility model. DETAILED DESCRIPTION
[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0030] Figures 1 to 3 A specific embodiment of the utility model is shown, a rat arm strength physical fitness test device, including a base 1, a base connecting rod 2, a column 3, a top rod 4, a steel wire 5, a string knob 6, a buffer airbag 7, a baffle 8, a pressure sensor 9, and a timing processing unit 10, wherein:
[0031] The two bases 1 are connected by a base connecting rod 2, a column 3 is fixedly connected to the base, the top ends of the two columns 3 are connected by a top rod 4, four string knobs 6 with a certain interval are respectively arranged on the two columns 3, both ends of the horizontal steel wire 5 are installed on the string columns 61 of one pair of string knobs 6, and a cushioning air bag 7 with an inflation valve is arranged between the two bases 1.
[0032] In this embodiment, the base connecting rod 2 and the top rod 4 are both telescopic rods, and the steel wire 5 is a multi-strand steel wire.
[0033] Vertical baffles 8 are fixedly provided on the inner sides of the two upright posts 3 , respectively, and the steel wire 5 passes through the through holes on the baffles 8 .
[0034] A pressure sensor 9 is installed at the bottom of the cushion airbag 7. The pressure sensor 9 is electrically connected to a timing processing unit 10. The timing processing unit 10 has a control button and a display screen.
[0035] In this embodiment, the string knob 6 uses the guitar string knob of the prior art, and the steel wire 5 is installed on the string post 61 of the string knob 6. By rotating the adjustment handle 62 of the string knob 6, the string post 61 is driven to rotate through the gear transmission structure inside the string knob 6, and the steel wire 5 can be adjusted to a taut state.
[0036] The above embodiments of the utility model are merely examples for explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes and modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the utility model are still within the scope of protection of the utility model.
Claims
1. A rat arm strength and physical fitness testing device, characterized in that: It comprises a base (1), a base connecting rod (2), a column (3), a top rod (4), a steel wire (5), a string knob (6), and a buffer air bag (7), wherein: The two bases (1) are connected by a base connecting rod (2), a column (3) is fixedly connected to the base, the top ends of the two columns (3) are connected by a top rod (4), string knobs (6) are symmetrically arranged on the two columns (3), both ends of a horizontal steel wire (5) are mounted on string columns (61) of the string knobs (6), and a cushioning air bag (7) with an inflation valve is arranged between the two bases (1).
2. The arm strength and physical fitness testing device for mice according to claim 1, characterized in that: The base connecting rod (2) and the top rod (4) are both telescopic rods.
3. The arm strength and physical fitness testing device for mice according to claim 1, characterized in that: The steel wire (5) is a multi-strand steel wire.
4. The arm strength and physical fitness testing device for mice according to claim 1, characterized in that: A plurality of string knobs (6) are symmetrically arranged on the two upright posts (3) at a certain distance.
5. The arm strength and physical fitness testing device for mice according to claim 1, characterized in that: Vertical baffles (8) are fixedly provided on the inner sides of the two upright posts (3), respectively, and the steel wire (5) passes through a through hole on the baffle (8).
6. The arm strength and physical fitness testing device for mice according to claim 1, characterized in that: A pressure sensor (9) is also installed at the bottom of the cushioning airbag (7). The pressure sensor (9) is electrically connected to a timing processing unit (10). The timing processing unit (10) has a control button and a display screen.