Patent ID: 6095139
Filing Date: 2000-08-01
Classification: A61M

Abstract:
A ventilator comprising:a gas flow generator which generates a flow of gas with at least one pre-selectable parameter value selected from the group of parameter values comprising pressure and flow rate;an inspiratory line having a proximal end connected to said gas flow generator and an opposite, distal end adapted for connection to a patient;an expiratory valve connected to said inspiratory line at a distance from said distal end of said inspiratory line to evacuate gas exhaled by a patient;at least one measuring instrument selected from the group consisting of a pressure gauge and a flow meter, connected to measure at least one measured characteristic, selected from the group of measured characteristics consisting of pressure and flow rate, of gas in said inspiratory line, said at least one measuring instrument being connected to said inspiratory line between said expiratory valve and said distal end of said inspiratory line; andcontrol means, supplied with said at least one measured characteristic from said at least one measuring instrument, for opening said expiratory valve and simultaneously regulating a flow of said gas from said gas flow generator through said inspiratory line during expiration, dependent on said at least one measured characteristic, for maintaining a positive end-expiratory pressure.