FIELD: medical engineering. SUBSTANCE: device connects the first reservoir to the second one having an embraced end piece. The device has piercing member for piercing cork having embracing end piece on one end and filtration chamber on the other end isolated from the ambient medium by means of filter. The device also has two independent canals in the piercing member giving communication the internal space of the first reservoir and the embracing end piece and filtration chamber, respectively. The device has guiding members for controlling piercing member movement, members for fastening bushing on the neck member, piston, mounted inside of a bore. The piercing member is mounted on the piston travelling as a result of simple pushing and arresting members for stopping piston movement. EFFECT: excluded relative movement of reservoirs connectable via the device. 7 cl, 4 dwg
