Ready-to-use device and method for removing interfering factors from samples to be subjected to microbiological examination

摘要

A ready-to-use device for removing interfering factors from samples to be subjected to microbiological examination comprises an elongate containment body (2), a stopper (5) inserted slidably and in a liquidtight fashion in the containment body (2), movable between a first position and a second position and delimiting a chamber (6) with variable volume, at least one product (7) in the form of granules for removing interfering factors inserted in said chamber (6); a supply nozzle (9) is connected to the containment body (2) and mounted inside the nozzle there is a sealing separator (12) made of elastomeric material; a suction and injection unit (13) connectable to the nozzle (9) comprises a first needle (15) extending outwards and a second needle (16) extending inside the nozzle (9) when the unit (13) is connected to the nozzle (9), the second needle (16) comprising an inner transit opening which is smaller than the nominal size of the granules; wherein when the connecting element (14) is connected to the nozzle (9) the second needle (16) pierces the sealing separator (12), passes through it and puts in fluid communication the chamber (6) and the first needle (15).