An exemplary method includes sensing respiratory information related to tidal volume, based at least in part on the respiratory information, determining if the tidal volume is less than a limit and, if the tidal volume is less than the limit, calling for diaphragm activation at a stimulation power based...http://www.google.es/patents/US7363085?utm_source=gb-gplus-sharePatente US7363085 - Augmenting hypoventilation
