Ankle fixation device for mouse muscle strength testing

By designing a fixation device with a U-shaped ankle joint fixator and clamping device, the problem of unstable ankle joint fixation in mice in traditional methods was solved, thus achieving accuracy and safety in mouse muscle strength testing, adapting to the needs of mice of different sizes, simplifying the operation process, and improving the stability of the sensor.

CN224584767UActive Publication Date: 2026-08-04CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER
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Patent Information

Application Number
CN202520891994.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-08-04
Estimated Expiration
2035-05-06

AI Technical Summary

Technical Problem

Traditional methods for testing mouse muscle strength are difficult to use to accurately and stably fix the mouse's ankle joint, resulting in inaccurate test results and stress to the mouse.

Method used

A fixing device including a U-shaped ankle joint fixator and a clamping component was designed. It adopts a structure with a threaded opening and a tightening bolt, and is equipped with a height adjustment port and a locking bolt to ensure stable fixation of the ankle joint. The clamping component and the sensor clamping port enable the sensor to be securely installed.

Benefits of technology

It improves the accuracy and reliability of muscle strength testing, reduces the struggling and movement of mice, adapts to mice of different sizes, simplifies the operation process, and improves experimental efficiency and sensor stability.

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Abstract

This utility model relates to the field of experimental tools for mice, specifically an ankle joint fixation device for testing mouse muscle strength. It includes an ankle joint fixator, a U-shaped clamping member mounted on one side of the ankle joint fixator, a threaded opening at the bottom of the ankle joint fixator, and a tightening bolt threaded onto the threaded opening. Several height adjustment slots are provided on the surface of the clamping member, which is used to clamp and position the sensor. In this ankle joint fixation device for testing mouse muscle strength, the U-shaped ankle joint fixator, combined with the clamping member and tightening bolt, can firmly and stably fix the mouse's ankle joint. This fixation method effectively avoids the mouse struggling and moving during the test, ensuring the accuracy and reliability of the muscle strength test. The height adjustment slots on the side of the clamping member, as well as the threaded sleeve and locking bolt on the upper part of the ankle joint fixator, allow the height of the device to be flexibly adjusted according to actual needs.
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