Vitrification carrier

Abstract

The invention discloses a vitrification carrier, which includes a carrier, an inner sleeve and an outer sleeve. The carrier includes a straw, a carrying tube and a handle. The straw is in the shape of a medical needle, and its front end is provided with a concave groove. One section of the bearing tube is an open end, and the other end is a closed end, the concave groove of the straw is connected to the open end of the bearing tube, and the closed end of the bearing tube is connected to the handle; the inner casing includes a plug and the inner tube body, one end of the inner tube body is a bell mouth, the other end is umbrella-shaped, the middle is a column, the plug includes a needle and a handle surface; one end of the outer tube is closed and the other end is open, and the carrier It is arranged in the pipe string, the plug is connected with the bell mouth, and the inner casing is arranged in the outer casing. The freezing carrier of the invention reduces the cost, and the manufacturing materials are commonly used consumables, which are easy to obtain and simple to operate, and the amount of freezing liquid can be precisely controlled according to the intake amount of the straw.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a vitrified freezing carrier. Background technique [0002] In recent years, the application of vitrification technology in the cryopreservation of human oocytes and embryos has gradually increased. Vitrification technology is to use a tiny cryogenic tool to change the high-concentration cryoprotectant solution from a liquid to a high-viscosity glass-like solid in the process of extremely rapid cooling (>2000 ℃ / min), preventing cells from The formation of internal ice crystals can achieve the effect of cryoprotection, thereby significantly improving the viability and development ability of cells / tissues after freezing. This technology is an important part of embryo biotechnology such as in vitro fertilization, microinjection, transgenic and cloning. In addition, embryo freezing technology can also protect endangered animals, and can protect breeds with high utilizati...

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