Method for using digital images relevant technology in cartilage mechanical property test

Abstract

The invention provides a method for using a digital images relevant technology in a cartilage mechanical property test, which comprises the following steps: 1) taking a cartilage with a subchondral bone as a test sample; 2) fixing the test sample by a clamp, blocking the images observation surface of the cartilage by transparent glass; 3) embedding the dark color nanoparticles on the images observation surface of the cartilage for inhibiting plaques; 4) fixing the left and right clamping positions of the clamp on a micro tensile machine for loading, immersing the clamp which fixes the cartilage in a glassware filled with normal saline during the loading process. The beneficial effects of the present invention comprise that: the test for cartilage mechanical property is carried out by using the advanced digital images relevant technology, the test environment approaches the normal work environment of human body, the influence caused by the typical boundary problem on the test result when using the technology is avoided, and the digital images relevant technology is effectively combined for artificially inhibiting plaques on the observation surface by aiming at the special material cartilage, so that the obtained clear images are used for subsequent data analysis and processing.

Description

technical field [0001] The invention relates to the testing technology of cartilage mechanical properties in biological tissues, in particular to a method for using digital image correlation technology in the testing of cartilage mechanical properties. Background technique [0002] With the development of computer technology, modern optoelectronic technology and digital image processing level, the digital image correlation method has increasingly become an important test method in the field of experimental mechanics. Biological tissue is different from general materials. Compared with other materials, its uniqueness lies in its complex structure and diverse composition. Biological tissues and cartilage are generally composed of fluid-solid coupling materials, and the biomechanical environment is very complex, so the requirements for testing their mechanical properties are relatively strict. Appropriate mechanical testing is related to important fields such as the understan...

AI Technical Summary

Problems solved by technology

The common problems are: the articular cartilage is white in texture, and to collect image surface marker points, suitable dark particles are required to form spot features; the size of the articular cartilage is small, and the loading head acts on the contact point on the cartilage to cause boundary effects and cause mechanical properties of the cartilage. Test errors; in addition, cartilage is a fluid-solid coupling material, and tissue fluid flows out during cartilage testing, which blurs the collected images and affects the...

Images