A device for collecting footprints of mice with sciatic nerve injury

Abstract

The invention discloses a footprint collection device for mice with sciatic nerve injury, which belongs to the technical field of zoology experiments. The upper end of the base is provided with a plurality of slide bars, and the interior of the base is provided with threaded rods between the slide bars, and the threaded rods are rotatably connected with the base. In the present invention, when the mouse walks in the protective shell, the mouse will step on the white paper. Since the copy paper is laid under the white paper, when the mouse walks on the white paper, the footprint of the mouse will be printed on the white paper, thereby completing the matching process. The collection of mouse footprints can prevent the mice from jumping out of the collection device in this way, and at the same time, the mouse footprints can be clearly collected. The design of one-way glass and blocking film can block the external light source, so that the mice can move in the closed and dark protective shell. , so as to prevent mice from being frightened.

Description

technical field [0001] The invention relates to the technical field of animal 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 made by self-made cardboard boxes. The feet are dipped in ink and then walked, and the relevant indexes of the footprints are measured. The paw print (E) left by the lateral paw determines three metrics: footprint length (PL), toe extension (TS) and inter-toe extension (IT). The above indexes were input into Bain formula (109.5(ETS-NTS) / NTS-38.3(EPL-NPL) / NPL+13.3(EIT-NIT) / NIT-8.8) to calculate sciatic function index. An SFI value of 0 is normal, and an SFI value of -100 indicates complete damage. [0003] However, measuring mouse footprints in this way has the following disadvantages: [0004] 1. Since the previous carton production is open-top type, it does not meet the characte...

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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