The Advanced delivery mechanism demonstration series model is a multifunctional teaching tool for obstetrics and gynecology teaching and clinical training. It is designed based on human anatomy and the physiological process of delivery, and can visually reproduce the relationship and changes between the fetus and the birth canal during labor.

This model usually includes parts such as the pelvis, fetus, uterus and placental appendages, and can demonstrate various delivery postures and rotation mechanisms such as head-to-head exposure, brevish position, occipital anterior position and occipital posterior position. By operating the model, trainees can clearly understand the sequence of occurrence of key links such as the connection of the fetal head, descent, internal rotation, extension and repositioning during the delivery process, thereby deepening their understanding of the progress of labor.

In addition, the model can also be used to demonstrate the mechanism of difficult labor and the principles of midwifery techniques, such as forceps or negative pressure suction operations, helping trainees accumulate experience in a simulated environment. Its role lies not only in enhancing the intuitiveness and practicality of teaching, but also in cultivating the clinical thinking and operational skills of obstetricians and midwives, laying a solid foundation for ensuring the safety of mothers and infants.