Scientific principles of IVF cycle progression
IVF technology is a kind of assisted reproductive technology, which aims to help couples who cannot conceive naturally achieve their reproductive aspirations. The scientific principles of IVF cycle include egg collection, sperm acquisition, in vitro fertilization and embryo transfer. This article will elaborate on the scientific principles of IVF feeding cycle from the following four aspects.
Egg collection
The first step of IVF is egg collection. Usually, doctors use ultrasound guidance to locate mature follicles in the ovary. Then, through a long and thin needle tube, the doctor penetrates the tip of the needle into the oval process of the ovary and gently absorbs the fluid in the follicle, including eggs and fluid cells. The process of egg collection uses local anesthesia to make patients feel the least discomfort.
The collected eggs will be immediately transferred to the laboratory for further processing. In the laboratory, eggs will be carefully observed, evaluated and ready for in vitro fertilization.
Sperm acquisition
Sperm acquisition is also an important step in the IVF cycle. In most cases, spermatozoa are obtained by manually stimulating the male reproductive organs, natural ejaculation or artificial assistance by using auxiliary means such as sperm plasma. Of course, sometimes the semen can be frozen for future use.
The obtained sperm will be separated and washed to remove impurities and inactive sperm. Only the most energetic sperm can successfully combine with the egg in the subsequent IVF process.
In vitro fertilization
In vitro fertilization (IVF) is the core process of IVF cycle. In the laboratory, doctors will fertilize the collected eggs and sperm in vitro to form a fertilized egg. This process can be carried out by standard in vitro fertilization (IVF) or by selecting a single sperm injection into a single egg (ICSI).
During in vitro fertilization, doctors will pay close attention to the results of fertilization and observe the development of the fertilized eggs. Usually, one or more fertilized eggs will continue to develop in the culture medium until the conditions for transplantation are met.
embryo transfer
Embryo transfer is the last step in the IVF cycle. After the embryo reaches the appropriate development stage, the doctor will select one or more of the healthiest and most dynamic embryos to transfer to the mother's uterus. This process is usually guided by intrauterine ultrasound to ensure accurate and safe placement of the embryo in the appropriate location.
After transplantation, the patient needs a short rest to stabilize his mood and body. Later, the patient can live a normal life until a pregnancy test is carried out to confirm whether the pregnancy is successful.
summary
The scientific principle of IVF cycle progression is elaborated from egg collection, sperm acquisition, in vitro fertilization and embryo transfer. Through these key steps, scientists can successfully form and develop embryos in the laboratory, transfer the healthiest embryos to the mother, and improve the probability of successful pregnancy. The continuous development and improvement of IVF technology provides an opportunity for couples who cannot conceive naturally to realize their reproductive dreams.
