As an important testing link for patients before surgery, the automatic coagulation tester is used for functional tests such as coagulation, anticoagulation, fibrin and anti-fibrin in human blood oars. The target user is a hospital laboratory physician. Based on the previous generation of products, the client hopes that this design will not only meet the requirements of its synchronous development of internal motion mechanism and framework, but also enhance the visual professionalism and high-quality performance of the products. On the other hand, it will ensure the same output quality in the design of complex and moving internal test areas. According to the requirements of customers, on the one hand, combining the brand-new appearance design, confirming the form of the exterior parts sports mechanism with the customer team, which improves the user's operation experience and the stability of the mechanism compared with the previous generation of products, on the other hand, on the basis of professional modeling, the comparison and matching of black highlight acrylic material and metal logo is used to enhance the precision and texture of the product, and the frameless hatch design, it not only solves the problem of matching the hatch, but also shows the local delicacy and simple overall appearance of the product.