A posterior nasal pack has a pair of adjoining inflatable bags sharing a common wall. A U-shaped channel adapted partially to surround the posterior edge of the septum is formed by the anterior walls of the bags which walls join in a common wall at the base of the channel. The bag exterior surfaces are...http://www.google.es/patents/US4338941?utm_source=gb-gplus-sharePatente US4338941 - Apparatus for arresting posterior nosebleeds
