Doya Medical has developed a noninvasive e-stent technology to reduce or eliminate the need for ear tube surgery for the treatment of otitis media with effusion. The company's active stent drains fluid from the ear naturally and without surgery. Its kit includes the e-stent and an optically guided delivery system for insertion into the eustachian tube. The technology is designed to improve quality of life, reduce recovery time, and save medical costs. Doya Medical was a silver winner in the MassChallenge global start-up competition for 2015.