In plastic injection molded products such as pipette tips, air traps (air pools) and weld lines often occur due to improper filling of plastic materials into the mold. These can cause defects in the molded product and cause liquid leakage. In particular, in plastic injection molded products such as medical reaction containers and reagent cartridges, leaking reagent liquid is a fatal defect. In that case, it is necessary to devise from the design stage so as not to cause liquid leakage.

For plastic injection molded products where liquid leakage is strictly prohibited, such as reagent cartridges and medical reaction vessels, it is possible to avoid defects caused by  air traps and weld lines by performing flow analysis at the prototype and development stages. By performing an evaluation using fluid analysis, the areas that need improvement can be clarified, and improvement measures for optimal product design can be taken in a short time. In particular, in the case of prototypes and development projects where speed is important, it is possible to perform optimal product design and mold design by performing flow analysis early in the manufacturing stage.