Biological soft tissue mechanical property testing instrument and biological soft tissue mechanical testing method

Abstract

The invention relates to a biological soft tissue mechanical property testing instrument and a biological soft tissue mechanical testing method. The testing instrument comprises a base, a clamp, a transverse force application device, a vertical force application device, a longitudinal tension detection device, a displacement detection device, a collecting device and a computer. The clamp is arranged on the base and used for fixing biological soft tissue. The transverse force application device is connected with the clamp and exerts transverse force on the clamp. The vertical force application device is connected with the clamp and exerts vertical force on the clamp. The longitudinal tension detection device is used for clamping the clamp and detecting longitudinal force borne by the clamp. The displacement detection device is arranged on the base to detect the displacement of the clamp. The transverse force application device comprises a transverse tension detection device detecting transverse force exerted on the clamp. The vertical force application device comprises a vertical tension detection device detecting vertical force exerted on the clamp. The collecting device collects the longitudinal force, the transverse force, the vertical force and the displacement. The computer is in signal connection with the collecting device and analyzes the longitudinal force, the transverse force, the vertical force and the displacement.

Description

technical field [0001] The invention relates to a biological soft tissue mechanical property tester and a biological soft tissue mechanical testing method, belonging to the fields of tissue engineering and biomedical engineering. Background technique [0002] The mechanical properties test of biological tissue is an important link in the research and development of tissue engineering and medical devices. Due to the different mechanical properties of biological soft tissues according to their own differences, shapes and characteristics, the main mechanical properties tests of biological tissues include extrusion test, tensile test and shear test. However, in the existing The test instruments in the test all have the following problems: the existing shear tester is mainly used for isotropic media, the test function is single, and the material response under complex shear modes cannot be measured. Contents of the invention [0003] The purpose of the present invention is to ...

AI Technical Summary

Problems solved by technology

Due to the different mechanical properties of biological soft tissues according to their own differences, shapes and characteristics, the main mechanical properties tests of biological tissues include extrusion test, tensile test and shear test. However, in the existing The test instruments in the test have the following problems: the existing shear tester is mainly used for isotropic media, the test function is single, and the material response under complex shear modes cannot be measured

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