The main object of this thesis is the design and manufacturing of a mechanical setup to drive multi-directionally-polarized shear wave motion for the purpose of dynamic elastography in a tensile pre-stressed anisotropic biological sample in an Ultra-High Field MRI system. The main requirements for this task are the structural stability of the system at high frequencies, the nonmagnetic materials needed for the manufacturing (since the magnetic field applied is in the order of magnitude of 10 Tesla and magnetic materials pose both a danger and will distort the acquired image), and the connectivity between the actuators and the wave generator to monitor and control the excitation.