Patent ID: 7927006

Claim:
A device for extracting, fragmenting, mixing, and homogenizing infectious, malodorous, chemically corrosive, or sterile substances, comprising: a tubular laboratory test vessel ( 3 ) having an open first end and a second end closed by a bottom; a closing lid ( 5 ) for the laboratory test vessel ( 3 ) connected to the open end; a processing tool ( 11 ) arranged in the closing lid ( 5 ) of the laboratory test vessel ( 3 ), which is couplable to a drive motor, the processing tool ( 11 ) comprises: a plurality of teeth ( 13 ) mounted to an inside of the closing lid; an agitating element ( 33 ) having a hollow guidance tube ( 31 ) that is rotatably mounted through a central bore ( 29 ) in the lid and includes an engagement portion that is adapted to be engaged by the drive motor, with a bottom end thereof being sealed by a cap ( 41 ) that is penetratable by a tip of a pipette; and a transportation element ( 47 ) arranged on the guidance tube ( 31 ) that extends outwardly in a helical shape that extends to the teeth ( 13 ) so that upon rotation an interior edge of the transportation element is guided past the teeth in a grinding and cutting manner.