Sonorous is developing a vascular stent device to be placed into the cerebral sinuses of patients with intrinsic or extrinsic stenosis which causes pulsatile tinnitus (PT). PT is caused by a venous sinus stenosis/stiffening causing hemodynamic turbulent blood flow and high frequency

turbulence transmitted to the inner ear as a pulsating sound. Sonorous’ vascular stent opens the narrowed vessel and restores blood flow.