A tracheostomy tube that enables speech. The tube is provided with an inside tube portion to be set in a trachea, an outside tube portion connected to a ventilator, and a balloon provided on the outer circumference of the inside tube portion. The balloon is connected to the inside tube portion so that...http://www.google.es/patents/US7156090?utm_source=gb-gplus-sharePatente US7156090 - Tracheostomy tube
