Evolution of several generations of IVF
Test tube baby refers to a baby who combines sperm and egg in a test tube through artificial insemination or in vitro fertilization technology, cultivates them in the laboratory for a period of time, and then implants mature embryos into the mother's uterus to make them pregnant and born. With the continuous progress of science and technology and the development of medicine, IVF technology is also evolving and improving, and has experienced several generations of development.
First generation IVF
The development of the first generation of IVF began in the 1970s, when Dr. Robert Edwards and Dr. Barry Jennings of Cambridge University in England successfully realized artificial fertilization and in vitro culture of embryos. After many attempts and experiments, they helped an infertile couple to give birth to the world's first test tube baby Louise Brown on July 25, 1978 at the Bourn Hall Clinic in Britain.
The success of the first generation of IVF has given birth to subsequent scientific research and technological development. The breakthrough of this technology not only provides hope for couples who cannot conceive naturally, but also provides solutions to other fertility problems caused by infertility.
Second generation IVF
With the success of the first generation of IVF, scientists have further improved and innovated the IVF technology. The breakthrough of the second generation of IVF mainly lies in the improvement of the time and quality of embryos cultured in vitro.
In the 1990s, Dr. Carl Ishi and Dr. Tangoni Barkley of Australia began long-term in vitro fertilization and embryo culture experiments in their hospital Melbourne IVF, which successfully improved the quality of embryos. This breakthrough has greatly increased the success rate of IVF, bringing good news to more couples.
Third generation IVF
With the increasing progress of science and technology, IVF technology is also constantly improving, entering the third generation of development stage. The third generation of IVF has made new breakthroughs in embryo screening and implantation technology.
At present, many IVF hospitals have adopted new embryo screening technologies, such as gene testing, to help couples screen healthy embryos and reduce the risk of chromosomal abnormalities. The application of this technology has greatly improved the success rate of IVF and reduced the failure of embryo implantation.
At the same time, the third generation of IVF has also made breakthroughs in implantation technology. Doctors introduced the concept of single embryo transfer (SET), that is, only one healthy embryo is implanted into the mother, reducing the risk of multiple pregnancy. This improvement improves the success rate of IVF and reduces the risk of pregnant women and fetuses.
summary
After several generations of development, IVF technology has made great progress. From the birth of the first generation of IVF to the breakthrough of the third generation, scientists continue to innovate and improve technology, making IVF an important means to solve the problem of infertility. With the development of technology, the success rate of IVF continues to increase, and more couples have realized their dreams of childbirth.
