Freezing clamp for biological soft tissue stretching test

Abstract

The refrigeration clamping head includes a metal tube, a jacket outside the metal tube. Being structured between the metal tube and the jacket, the sealed chamber forms the evaporating pipe in use forcoolant come in. inlet pipe and outlet pipe for coolant are connected to the jacket connected to the chamber. Features are: simple structure, low cost, not generating stress concentration on soft tissue held by the clamping head.

Description

technical field [0001] The purpose of the present invention relates to a tool, which is applied to biomechanical testing, specifically a clamp for clamping biological soft tissue in biomechanical testing, which can firmly grasp soft tissue without destroying the soft tissue itself, and is ideal for biomechanical testing Use a jig. Background technique [0002] In biomechanical tests, the problem of clamping and fixing biological soft tissues is often encountered. After ordinary clamps contact with soft tissues, stress concentration is likely to occur and damage the tissue, which affects the accuracy of mechanical tests. In the experimental process of obtaining biomechanical data of tiny soft tissues, the soft viscoelastic properties of soft tissues bring great difficulties to clamping and fixing. The traditional clamping method is to use hard metal clamps to clamp the tissue block. It is feasible for tissues with high hardness such as bones, but it is difficult for soft tis...

AI Technical Summary

Problems solved by technology

However, the few powerful units in China can only rely on importing such equipment from developed countries to complete experiments, and the price is very expensive.

In addition, this fixture can only be used for clamping and loading at room temperature, and cannot be used in a 37°C water bath environment that simulates physiological conditions

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