A vessel is adapted to be used in a procedure for isolating and collecting cells from a tissue portion using a centrifuge by providing a sealable chamber separated into two sections by a mesh screen, the chamber having a conical bottom inner surface, with a port at the apex in the lowest point in the chamber and ports at the top of the chamber, the method including placing the tissue portion in the chamber above the screen, washing the tissue, repeatedly as needed, by introducing a washing solution through a top port and draining the wash solution from the chamber through the bottom port, introducing an enzyme solution through a top port, allowing the enzyme solution to partially digest the tissue, centrifuging the vessel, and draining the isolated cells through the bottom port.
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