DISPOSITIVO DE UNION Y METODO DE UNION PARA UNIONES LIBRES DE CONTAMINACION Y/O ESTERILES.

摘要

A seal (11, 12) around the central opening (8) in a coupling device (4, 5) contains a cavity (16, 17) with a volume which is reduced when the coupling devices are pressed together to form the connection, causing the gas inside to become pressurised and result in the removal of the protective films (13) covering these openings. - A method for providing a contamination-proof and/or sterile seal between at least two interconnectable coupling devices containing central openings for allowing a fluid to flow through them after they have been connected together comprises providing a seal on each coupling device around its central opening and covering each opening with a protective film which is removed when the two devices are connected together. At least one seal contains one or more cavities which extend partly or completely around the opening and contain a gas volume (18). When the seals are pressed together during connection of the two devices, the volume of these cavities is reduced, pressurising the gas inside them, which causes the films to be removed quickly by a flow of gas that prevents any contamination entering the connection. An INDEPENDENT CLAIM is also included for the connection device.