Instead of immersing human reproductive cells in a single culture medium
throughout the various procedures used in IVF, a process is provided by
which the reproductive cells may be moved through a sequence of distinct
culture media as the various IVF procedures are carried out. In one
implementation, the culture media specifically formulated to provide a
physical environment similar to that found within the female reproductive
tract and conducive to growth and development of human reproductive cells
during the various stages of the IVF process. In this regard,
specifically formulated culture media can be applied to support the
reproductive cells in one or more of the following procedures: oocyte
retrieval and handling; oocyte maturation; ordinary fertilization;
oocyte, zygote and embryo examination and biopsy; embryonic development
to the eight-cell stage; embryonic development to the blastocyst stage;
embryo transfer, and cryopreservation.