Abstract: The object of providing a cerebrospinal fluid drainage system 1 which reacts precisely to changes in pressure in the cerebrospinal fluid, with ease of operation, is achieved by the present invention in that a pump 5 is used for draining the cerebrospinal fluid (liquor), wherein operating measured values supplied by sensors act as controlled variable for the operation of the pump. The pressure in the liquor line currently measured by a pressure sensor 10, the liquor pressure in the intracranial cavity being treated, measured intracorporeally by a pressure sensor, and/or the volume of liquor already pumped out, as operating measured value, can, for example, serve as the basis for operational control of the pump of the liquor drainage system.

Abstract: A chromatography column comprises a pipe that contains a tubular metal casing with an inlay and sealing ring. The inlay is configured as a plastics material tube and is pushed or drawn into the metal casing and a sealing ring of plastics material is connected to the inlay at the end. Because of this structure, a connection to further system parts is possible, which is carry-over-free, inert on the inside, liquid-tight, optionally gas-tight, and pressure-tight. A connection element and connection connect the pipe to feed and/or discharge lines of a capillary system. Pipes, connection elements and connections of this type are advantageously used in low and high pressure systems, such as, for example, in an HPLC column. The use of such systems is advantageous in in-vitro diagnostics and in liquid handling applications.

Abstract: A chromatography column comprises a pipe that contains a tubular metal casing with an inlay and sealing ring. The inlay is configured as a plastics material tube and is pushed or drawn into the metal casing and a sealing ring of plastics material is connected to the inlay at the end. Because of this structure, a connection to further system parts is possible, which is carry-over-free, inert on the inside, liquid-tight, optionally gas-tight, and pressure-tight. A connection element and connection connect the pipe to feed and/or discharge lines of a capillary system. Pipes, connection elements and connections of this type are advantageously used in low and high pressure systems, such as, for example, in an HPLC column. The use of such systems is advantageous in in-vitro diagnostics and in liquid handling applications.