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Freezing clamp for biological soft tissue stretching test

A biological soft tissue and tensile test technology, applied in the field of tools, can solve problems such as unusable and expensive, and achieve the effect of overcoming stress concentration

Inactive Publication Date: 2007-06-27
THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Freezing clamp for biological soft tissue stretching test
  • Freezing clamp for biological soft tissue stretching test

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Embodiment Construction

[0010] The freezing chuck for biological soft tissue tensile test of the present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0011] As shown in Fig. 1 and Fig. 2, it is the cryo chuck for tensile test of biological soft tissue according to the present invention, comprising a cryo clamping pipe made of a metal tube 4, a jacket 5 on the metal tube 4, two ends of the jacket 5 It is connected with the outer wall of the metal tube, or the two ends of the jacket and the metal tube are sealed by a plugging structure, and a sealed chamber is formed between the metal tube 4 and the jacket 5 to form an evaporation tube for the passage of refrigerant. A refrigerant inlet pipe 3 and a refrigerant outlet pipe 8 are connected to the jacket 5 to communicate with the chamber, and are used to connect with peripheral refrigeration equipment and feed refrigeration into the evaporation pipe formed between the metal pipe 4 and the...

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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 for coolant 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...

Claims

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Application Information

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IPC IPC(8): G01N3/04G01N33/49
Inventor 欧阳云飞杨柳段小军戴刚
Owner THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA