keywords: cyberonics neuromodulation cybx ansi companies
text: Advanced Neuromodulation takes stake in Cyberonics CHICAGO, Aug 20 (Reuters) - Advanced Neuromodulation Systems (ANSI.O: Quote, Profile, Research) on Friday said it took an equity stake in Cyberonics Inc. (CYBX.O: Quote, Profile, Research) and initiated discussions about combining the two companies. 