Mixing device, system and method for mixing

A mixing device for mixing the contents of a container, the device comprising a controller 180 for controlling motor 112, rotating actuator 110 carrying an eccentric load 118, an actuator mount 114, a container clamp 132, a multi-element spring with principal beam 102, first beam 106 and second beam 104 wherein the mount is positioned on a first end of the principal beam and the second beam is connected to the principal beam by a substantially ridge hinge 126 at a second end of the principal beam and securely holds the container clamp. The second beam maybe connected to the principal beam by a substantially ridge hinge 128. Alternatively, the second beam may be a simple spring (500; fig 5) or torsion spring (600; fig 6). The second beam connects to an anchor point or bracing structure 108. The rotation of the eccentric load by the motor induces twisting and flexing forces through the entirety of the multi-element spring about the fixed bracing structure, creating multiple degrees of freedom of motion in the device and hence container. The container also acts as an additional eccentric load contributing to the complex multidirectional flexing of the multi-element spring system. The fluidic motions include shaking, vibrating swirling and vortex formation.