Oxygen supply device

An oxygen supply device with an oxygen source and with at least one oxygen mask, said oxygen mask being conductively connectable to the oxygen source via a connection conduit, characterized in that at least a section of the connection conduit is formed by a film tube, wherein the film tube has a peripheral wall formed by a gas-impermeable film which in the absence of a pressure prevailing in an inner lumen of the film tube has no intrinsic stability transverse to a longitudinal extension of the film tube and thus collapses in an absence of an inner pressure in the film tube,

• wherein the gas-impermeable film is formed of polyurethane,
• wherein the oxygen supply device is an emergency oxygen supply device integrated into a portion of an aircraft,
• wherein the oxygen supply device is characterized in that at least one tension element for strain relief and/or as a sharp-bend protection of the film tube is provided, said at least one tension element being fastened at a mask side of the film tube and at an oxygen source side of the film tube, wherein each of the at least one tension element is freely movable with respect to the film tube at least in the film tube's longitudinal direction such that no forces are transmitted onto the film tube in a case of a tensile loading of said tension element, wherein the oxygen supply device is characterized in that characterized in that the film tube is connected to a breathing bag of the oxygen mask and each of the at least one tension element is longer than the film tube, wherein each of the at least one tension element is further led through the breathing bag or along an outside of the breathing bag, wherein each of the at least one tension element is shorter than a combined length of the film tube and the breathing bag such that that no tensile forces act upon the film tube and the breathing bag when said tension element is tensioned.