Description

Prenatal Cervical Change Model is an e-commerce obstetrics and gynaecology training product designed for professional healthcare education, clinical simulation, delivery practice, maternal care learning, fetal development study, and gynaecological skill training. This series of models consists of six developmental phases, with each part representing a state of prenatal cervix and birth canal. The entire set of models demonstrates the relations between the expansion of the cervix orifice, the range of cervical tunnels, and the position of the fetus's head relative to the square of the ischial spine.

Features

1. Stage 1: No dilation of the cervix; cervical canal does not disappear; the position relation between fetal head and ischial spine place is -5.
2. Stage 2: 2 cm cervical dilation; 50% disappearance of cervical canal; the position relation between fetal head and ischial spine place is -4.
3. Stage 3: 4 cm cervical dilation; cervical canal completely disappears; the position relation between fetal head and ischial spine place is -3.
4. Stage 4: 5 cm cervical dilation; cervical canal completely disappears; the position relation between fetal head and ischial spine place is 0.
5. Stage 5: 7 cm cervical dilation; cervical canal completely disappears; the position relation between fetal head and ischial spine place is +2.
6. Stage 6: 10 cm cervical dilation; cervical canal completely disappears; the position relation between fetal head and ischial spine place is +5.