Measuring system for biomechanical characteristics of human cadaver knee joint cruciate ligament

Abstract

The invention relates to the medicine field, and relates to a measuring system for biomechanical characteristics of a human cadaver knee joint cruciate ligament. The measuring system comprises: hardware such as a positioning robot, a force sensor, a data acquisition card, a visual tracking platform, a computer, a tibial fixing portion, a femur fixing portion; and software such as a force information acquisition module stored in the computer, a positioning robot motion module, and a visual tracking module. The force information acquisition module acquires force information of a knee joint in real time to achieve accurate force control. The positioning robot motion module enables the computer to establish contact with a positioning robot through Ethernet communication, and assists the doctorin performing motion control and acquiring accurate position information of the knee joint. The visual tracking module acquires pose information of Markers on the tibia and femur in real time, and obtains the movement amount and the rotation amount of the knee joint by comparing the pose changes before and after the knee joint motion. The measuring system assists the doctor in performing accurateforce control and motion control, obtains position and posture information of the knee joint, reduces the difficulty of the experimental operation, and improves the accuracy of the experimental results.

Description

technical field [0001] The invention relates to a fixing device for assisting in measuring the biomechanical properties of the cruciate ligament of the knee joint of a human corpse, and relates to a method for measuring the biomechanical properties of the cruciate ligament of the knee joint of a human corpse using force sensor technology, computer vision technology and robot technology. Background technique [0002] The anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) are important structures to maintain the stability of the normal knee joint. Their rupture is a common injury in sports medicine, which can lead to joint instability and induce meniscus, Intra-articular structures such as articular cartilage are damaged, which seriously affects joint function. Due to poor blood supply and limited self-repair ability after cruciate ligament rupture, ligament reconstruction surgery is generally required, and arthroscopic minimally invasive reconstruction of ...

AI Technical Summary

Problems solved by technology

At present, the arthroscopic reconstruction surgery methods for knee ligament injuries have a variety of options, a large part of which is determined by the preference of the surgeon, and there is no consistency. No one has done a detailed comparative study on the biomechanical characteristics of different surgical methods before. Which is more dominant, lack of scientific basis

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