Cryopreservation of biological cells and tissues
AssigneeGenea Limited
InventorTomas Stojanov
Life of this patent
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Abstract
The method involves placing an oocyte cell in a cell holder (1), securing the cell holder in a treatment station, applying a treatment solution to the cell by washing the cell with the solution, and rapidly cooling the cell holder and cell to a predetermined cryopreservation temperature for cryopreservation of the cell. The cell is cooled at a high rate sufficient to permit vitrification of the cell and any surrounding treatment solution to occur. The cell is then maintained at or below a predetermined storage temperature for storage. The method allows multiple cells to be treated simultaneously each secured within a respective cell holder.
Claims6
A method for the cryopreservation of a biological cell, said method comprising the steps of:
- providing a biological cell in a cell holder comprising sidewalls thereby forming a cup-shaped holding vessel and defining an open inlet to hold the biological cell for cryopreservation of the biological cell, wherein said cell holding vessel includes filtration means formed at a lower surface of said vessel;
- securing the cell holder containing the biological cell at a treatment station in a cell holder frame including a plurality of locating formations and secured to the treatment station, and providing each locating formation for securing a respective said cell holder, to thereby allow a plurality of corresponding cell holders to be secured to the frame in an array;
- subsequent to the securing, automatically applying a cryopreservation treatment solution to the biological cell at the treatment station;
- subsequent to the applying, and without delay, cooling said cell holder and biological cell to a predetermined cryopreservation temperature at a cooling station, such that said biological cell is cooled at a cooling rate sufficient to promote vitrification of the biological cell and surrounding cryopreservation treatment solution;
- and
- maintaining the biological cell at or below a storage temperature at the cooling station, wherein said step of applying a cryopreservation treatment solution includes the step of retaining said biological cell in said cell holder and allowing said cryopreservation treatment solution to flow through said cell holder.
Dependencies are inferred from the claim text.