Patent ID: 7144473
Filing Date: 2006-12-05
Classification: A61M

Abstract:
1. An evaporator for respirators, comprising: a storage tank comprising a lower part filled with a liquid during operation and an upper part filled with a gas during operation; a gas intake connected to said upper part of said storage tank; a gas outlet connected to said upper part of said storage tank, said gas intake and said gas outlet arranged such that the gas passes through said upper part of the storage tank over the surface of the liquid; a regulating reservoir connected to the lower part of the storage tank by a control valve; a vapor channel connecting the regulating reservoir to said gas intake, said regulating reservoir communicating with said vapor channel, and said control valve operable to at least partially fill the vapor channel with liquid from the storage tank; a heater for heating a small portion of the liquid within the vapor channel to form a vapor injected into said gas intake through the vapor channel; and a vapor nozzle connected to said vapor channel and adjacent the gas intake so that it may inject the vapor into the gas.