Patent ID: 8709786

Claim:
A device for isolating fixed or live cells on a filter or extracting genetic material from live cells, comprising: a compartment with an interior volume for receiving liquid carrying said cells, a lower opening and an air inlet; a movable means configured to be set in motion respectively with said compartment, said movable means having legs; a filter and filter support held by at least one of said compartment opening or said movable means, designed to retain said cells when liquid is passed through the filter; a needle forming a single impermeable unit, at least temporarily, with said compartment opening, the filter being positioned between the needle and the interior volume of the compartment, said needle being designed to pierce a plug of a vacuum tube with negative pressure relative to ambient pressure in order to aspirate the liquid through said filter; a connection means between the compartment and a protective cylinder surrounding the needle, said connection means being configured to surround, at least in part, the vacuum tube during aspiration of the liquid through the filter; wherein said movable means and the compartment are configured to be set in motion respectively in order to apply a force on the filter and release the filter after aspiration of the liquid through the filter; and wherein the legs of the movable means are configured, when moved by an operator's fingers, to exert downward pressure on the filter support and release the filter support from a lower end of the compartment.