gestational carrier or surrogate
A Gestational carrier is also called a Gestational Surrogate in an arrangement when a women carries and delivers a child for another couple or person and return the baby to the intended parents ones it is born. When using GC, the eggs used to make the embryos do not come from carriers.
This technique requires IVF. Eggs and Sperm Oocyte retrieved from intended parents or donors and IVF was done. Embryos are transferred to Gestational Surrogate. So, gestational carriers are not genetically related to child.