Vivos Inc., formerly Advanced Medical Isotope Corporation, is a radiation oncology focused medical device company. The Company is engaged in the development of yttrium-90 (Y-90)-based brachytherapy devices for the treatment of non-resectable tumors. Brachytherapy uses radiation to manage cancerous tumors by placing a radioactive isotope inside or next to the treatment area. The Company's lead product is the Y-90 RadioGel device. The Company is engaged in the development of its brachytherapy products, which includes Y-90 RadioGel device, Y-90 Fast-Resorbable Polymer Seeds and Y-90 Polymer Topical Paste.