Abstract: The disclosure refers to a device, for example a cartridge, a syringe or an autoinjector, which reduces the possibility of user error and provides an easy and automatic operation during mixing and/or reconstitution. The device is adapted such that activation of the device causes movement one of a first piston and a second piston in second chamber in an axial direction of the device, thereby moving the other one of the first piston and the second piston into the same axial direction of the device, opening a fluid communication path between the second chamber and a first chamber of the device, and expelling a second material from the second chamber into the first chamber via the fluid communication path. The disclosure is further directed to a respective mixing and/or reconstitution method.

Abstract: A mixing and/or reconstitution system reduces the possibility of user error and provides a well mixed and/or reconstituted drug in a short time. The system comprises a device containing a first material within a first chamber, a housing, and a plunger, the plunger comprising a second chamber containing a second material, wherein one of the first and the second material is a fluid, and a movable element with an electric, magnetic, or paramagnetic characteristic, wherein the second chamber is initially closed; and a base unit comprising a recess for accommodation of the device, a control unit, and an electromagnetic unit which is adapted to produce an electromagnetic field penetrating the recess, wherein the control unit can electrically operate the electromagnetic unit such that the element contained in the second chamber moves in a direction of the device determined by the electromagnetic field and fluidly communicates the first and second chambers.

Abstract: An inductive sensor device includes a scale unit (24) containing field elements (26) that cooperate with a transmit circuit (32) to create a field pattern (S(x)) in measuring direction (M). A sensor unit (25) contains at least one receive circuit (34) with at least one receive coil (35), respectively. The sensor unit (25) and the scale unit (24) can move relatively in measuring direction (M). The coil loops (37) of the at least one receive coil (35) and/or the scale loops (28) of the scale elements (26) are separated into a loop front (56) and a loop back (57), each containing a sectional portion that runs alternately with regard to the height direction. The alternating run can be obtained by combining linear and/or curved portions so that a meandering, zigzag, sinusoidal, or another arbitrary alternating run can be obtained.