Nexeon Medsytems Inc, formerly Rosellini Scientific LLC until the firm was acquired by Nexeon Europe in 2017 and now operating as Nexeon Medsystems Inc, is a publically traded medical device company focused on providing innovative neurostimulation products that improve the quality of life of patients suffering from debilitating neurological diseases. The firm's primary technology is a non-invasive, battery-operated device to stimulate the auricular branch of the vagus nerve (ABVN) to reduce the symptoms of various chronic diseases and disorders.