OPS and SOPS straws are known as as the ideal containers for vitrifying oocytes or embryos.

Due to their extremely small diameters and minimal freezing volumes, the process of cooling is so fast, that crystallization in the medium and the cell can be avoided.

Since OPS straws stay open, the danger of contamination of the cells exists while being stored in liquid nitrogen.

Besides this, it is bardly possible to correctly label the OPS tubes.

With the VitSet both points are solved:after vitrification of the OPS straws in the nitrogen bath, each OPS is the placed in a larger labelled straw while surrounded by nitrogen vapor.

this larger straw (0.5ml) is already closed at one end and lyung on a special block.

Afterwards, the other end of the larger straw is sealed with a hand held sealing unit, while it still remains in the nitrogen vapor.

Finally, the sealed straws are stored in cassettes in the storage container.

VitSet, highly insulating styrofoam block with 3stainless steel elements:

- Stainless steel vitrifying bath

- Nitrogen vapor bath

- Packaging bath

Includes

- stainless stell loading rack for 0.5ml straws,

- 50 sterillized OPs straws,

- 50 sterilized 0.5ml straws, closed at one end, for receiving the OPS straws,

- 20 flat cassettes for storing the straws in liquid nitrogen,

- 2 tweezers for handling the OPS and the 0.5ml straws,

- 1 fine marger for labelling the 0.5ml straws,

- 1DVD with vitrification instructions.