Device for collecting footprints of mice with sciatic nerve injury

Abstract

The invention discloses a device for collecting footprints of mice with sciatic nerve injury, and belongs to the technical field of zoology experiments, the device comprises a base, the upper end of the base is movably connected with a protective shell, the left side of the protective shell is movably connected with a storage chamber, and the upper end of the base is provided with a plurality of sliding strips; threaded rods are arranged in the base and located between the sliding strips, and the threaded rods are rotationally connected with the base. According to the invention, when a mouse walks in the protective shell, the mouse steps on the white paper, the copy paper is laid below the white paper, footprints of the mouse can be printed on the white paper when the mouse walks on the white paper, and therefore collection of the mouse footprints is completed. In this way, the mouse can be prevented from jumping out of the collecting device, meanwhile, the mouse footprints can be collected clearly, through the design of a one-way glass and a shielding film, the external light source can be shielded, so that the mouse moves in the closed and dark protective shell, and the mouse is prevented from being frightened.

Description

technical field [0001] The invention relates to the technical field of zoology experiments, in particular to a device for collecting footprints of mice with sciatic nerve injury. Background technique [0002] At present, the sciatic nerve recovery index of mice after sciatic nerve injury is mainly measured by making a self-made cardboard box, dipping the feet in ink and walking, and measuring the relative index of the footprints. The paw print (E) left by the lateral paw determines three indices: footprint length (PL), toe stretch length (TS) and inter-toe stretch length (IT). Enter the above indicators into the Bain formula (109.5(ETS-NTS) / NTS-38.3(EPL-NPL) / NPL+13.3(EIT-NIT) / NIT-8.8) to calculate the sciatic function index. An SFI value of 0 is normal, and an SFI value of -100 indicates complete injury. [0003] However, measuring mouse footprints in this way has the following disadvantages: [0004] 1. Since the previous cartons were made in an open-top style, which doe...

AI Technical Summary

Problems solved by technology

[0004] 1. Since the previous cartons were made in an open-top style, which does not conform to the characteristics of mice who like black, there will be stagnation when walking, and the footprints will not be smooth; 2. The ink on the feet will gradually decrease after walking. If you cannot walk smoothly, you will leave Intact footprints need to be repeatedly dipped in ink for experiments; 3. Since the homemade carton is relatively simple, the mouse can jump out of the carton, or turn around at the end of the carton to overlap the previous footprint image

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