A tip seal arrangement for injectors containing stem cells

An injector arrangement which allows the tissue to be drawn through a suction tip, stored inside a tube without intervention or exposure to air and centrifuged finally in order to obtain fat based stem cells, comprising a modular piston with a movable structure which allows drawing the fat tissue into the tube through the said suction tip by a piston tip seal, a piston shaft with modular structure which allows the said modular piston to move inside the tube in forward and backward directions and which can be separated from the modular piston in order to allow the tube to be placed inside the present centrifuge device after the fat tissue is drawn inside the tube, and an O-ring which engages into the O-ring seat formed on the hollow locking part with independent structure in order to make the hollow locking part with an independent structure introduced on the said modular piston to act as a locking device during the centrifuge, or in other words, to prevent the fat tissue and split stem cells to leak outside the tube during the centrifuge, wherein;

• it comprises a piston tip seal with a concave structure.