Vacuum Sterilized Needle Holder

Short Description:

1) It is used for connecting both the vacuum needle and the vacuum blood collection tube.

2) After sterilization,please using the product before expiry date.If the protection cap is loose or damaged, please do not use it.

3) It is one-off product.Do not use it for a second time.

4) For your health,do not use the same blood lancet with some other person.


The History of IVF -The Milestones

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The history of In Vitro Fertilization (IVF) and embryo transfer (ET) dates back as early as the 1890s when Walter Heape a professor and physician at the University of Cambridge, England, who had been conducting research on reproduction in a number of animal species, reported the first known case of embryo transplantation in rabbits, long before the applications to human fertility were even suggested.

In 1932, ‘Brave New World’ was published by Aldous Huxley. In this science fiction novel, Huxley realistically described the technique of IVF as we know it. Five years later in 1937, an editorial appeared in the New England Journal of Medicine (NEJM 1937, 21 October) which is note worthy.

Aldous Huxley

Aldous Huxley

"Conception in a watch glass: The ‘Brave New World’ of Aldous Huxley may be nearer realization. Pincus and Enzmann have started one step earlier with the rabbit, isolating an ovum, fertilizing it in a watch glass and reimplanting it in a doe other than the one which furnished the oocyte and have thus successfully inaugurated pregnancy in the unmated animal. If such an accomplishment with rabbits were to be duplicated in the human being, we should in the words of ‘flaming youth’ be ‘going places.’"

In 1934 Pincus and Enzmann, from the Laboratory of General Physiology at Harvard University, published a paper in the Proceedings of the National Academy of Sciences of the USA, raising the possibility that mammalian eggs can undergo normal development in vitro. Fourteen years later, in 1948, Miriam Menken and John Rock retrieved more than 800 oocytes from women during operations for various conditions. One hundred and thirty-eight of these oocytes were exposed to spermatozoa in vitro. In 1948, they published their experiences in the American Journal of Obstetrics and Gynecology.

However, it was not until 1959 that indisputable evidence of IVF was obtained by Chang (Chang MC, Fertilization of rabbit ova in vitro. Nature, 1959 8:184 (suul 7) 466) who was the first to achieve births in a mammal (a rabbit) by IVF. The newly-ovulated eggs were fertilized, in vitro by incubation with capacitated sperm in a small Carrel flask for 4 hours, thus opening the way to assisted procreation.


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