Patent ID: 6516803
Filing Date: 2003-02-11
Classification: A61M,Y10S

Abstract:
A device for removing sputum from a tracheal catheter that is inserted into the trachea of a patient, said device comprising a cylindrical housing with a first opening inserted into a base of the cylinder, which can be connected to the tracheal catheter end that projects from the trachea, with a second opening for exchanging exhaled air against filtered fresh air and with a third opening, arranged in a shell of the cylinder, for removing the sputum, wherein the cylindrical housing is made of a transparent material and contains, on an inside, a valve consisting of a piston controlled by respiratory air that opens, during the exhalation, the third opening, preferably downward pointing during use, as a result of the pressure exerted by the exhaled air and counter to the pressure of a spring, its own weight or an additional weight for draining the sputum and which closes the third opening during the inhalation owing to the pressure of the spring, its own weight or an additional weight, said piston having a cone-shaped base and a cylindrical shell, is positioned coaxial and such that it can glide easily inside the cylindrical housing and with its shell surface covers the third opening in a closed condition, while the second opening, which preferably points upward in the use position and is arranged in the cylindrical shell of the cylinder, is always open and is connected to the first opening for a free flow of respiratory air.