Cannulas, as well as cannula assemblies including gas filters, are disclosed. The transmission family members include four planetary gear sets, two input clutches, seven, eight or nine torque transmitting mechanisms and three fixed interconnections. Here, the circumference 2 of the filter element 1 circumscribes a central filter plane 4. The spool assembly also includes a lateral flow passage extending from the spool longitudinal passage and configured to transfer the production fluids. The inkjet ink is capable of forming in a desired pattern a polymer layer having excellent adhesion to a metal film and exhibits high stability in continuous discharge. Various display configurations may be used to represent a control element with a combined operative-focus state.