A Eustachian tube stent designed to maintain patency of the eustachian tube passage, comprising a flanged tubular body constructed of a biodegradable material capable of eluting a drug. The stent design is adapted specifically for the Eustachian tube environment. The stent is positioned in the Eustachian...http://www.google.es/patents/US6589286?utm_source=gb-gplus-sharePatente US6589286 - Eustachian tube stent
