What Is The Meaning Of Double-cavity Oocyte Needle in Test Tube?

The oocyte retrieval needle is a necessary gynecological medical consumable in in vitro fertilization-embryo transfer (IVF-ET). Under the guidance of B-ultrasound, the oocyte needle is punctured through the posterior fornix into the ovary and punctured the follicle, and the follicular fluid is sucked under the action of negative pressure to obtain the oocyte.

Oocyte retrieval needles are divided into single cavity oocyte retrieval needles and double cavity oocyte retrieval needles. The needle tube of the single-chamber oocyte retrieval needle has super smooth inner and outer walls, which reduces the damage to the egg-cumulus complex and facilitates penetration of the vaginal wall and ovarian matrix. The single-cavity oocyte retrieval needle is equipped with flushing needles. , It can flush the egg suction cavity and increase the egg retrieval rate.

The double-cavity needle not only has the same characteristics of the needle wall as the single-cavity needle, but also has its unique needle tip structure. A flushing cavity with a diameter of 0.3mm is provided on the side wall of the suction oocyte cavity. The oocyte retrieval can be performed at the same time, and the maximum oocyte retrieval rate can be obtained.

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