Technical principle of test tube baby of Hangzhou Provincial Women's Insurance Bureau
IVF technology is a kind of assisted reproductive technology, which aims to help couples who are difficult to conceive naturally realize their reproductive aspirations. Hangzhou Provincial Women's Insurance Bureau is a hospital with IVF technology in Hangzhou. The following four aspects will describe the technical principles of IVF in detail:
1. Ovulation promotion process
The first step of IVF is to promote female ovulation through drugs. These drugs are often synthetic gonadotropins, such as human chorionic gonadotropin (hCG), follicle stimulating hormone (FSH), etc. By injecting these drugs, the ovary can be stimulated to increase the number and maturity of follicles and improve the success rate. This process requires close monitoring of women to determine the best time for follicle collection.
In general, in order to obtain multiple eggs, doctors usually conduct a basic follicle count for women before drug treatment. Based on the individual condition of the patient, the doctor will determine the appropriate drug dosage. The use of ovulation promoting drugs needs to be closely monitored to avoid ovarian hyperstimulation and related complications.
In the process of drug ovulation promotion, regular ultrasonic examination and blood hormone determination will be carried out to evaluate the ovarian response and follicle growth, and determine the optimal follicle collection time.
2. Egg collection and sperm treatment
After the follicle develops to a sufficient size, the doctor will take the egg out of the ovary by puncture technology under the guidance of ultrasound. Egg collection is usually carried out in the operating room, and the cooperation with the anesthesiologist needs to be planned. The eggs collected will be immediately placed in a culture dish containing nutrient solution.
At the same time, sperm will be separated from semen samples provided by spouses or donors. The evaluation of sperm quality and quantity is a key step in sperm processing. This process includes centrifugation, washing and screening, aiming to obtain high-quality sperm for fertilization.
3. Fertilization and embryo culture
After the eggs and sperm are counted accurately, the doctor puts them in the same Petri dish for fertilization. Fertilization is often performed by in vitro fertilization (IVF) or microinjection (ICSI), depending on the patient's condition.
The fertilized eggs will continue to be cultured in the petri dish, creating an ideal environment similar to the inside of the uterus to promote embryonic development. This process usually lasts for 3-5 days, during which the doctor will regularly evaluate the development of the embryo and select the best embryo for transplantation.
4. Embryo transfer and pregnancy
Embryo transfer is the last step of IVF technology, which can promote the occurrence of pregnancy by transplanting one or more embryos into the female uterus. The transplantation process is completed by using a catheter to enter the uterine cavity through the female vagina under the guidance of a doctor.
After transplantation, women may need a period of rest to ensure the implantation of embryos. About 10-14 days later, the doctor will conduct a pregnancy test to verify whether it is successful.
summary
The Hangzhou Provincial Women's Insurance Bureau has provided an opportunity for infertile couples to realize their reproductive dreams through IVF technology. The technology mainly includes ovulation induction process, egg collection and sperm treatment, fertilization and embryo culture, as well as embryo transfer and pregnancy. Each step requires close cooperation between professional doctors and the team to ensure the success rate and patient safety. Through IVF technology, many infertile couples have successfully achieved healthy babies in their lives.
