Patent ID: 6761172
Filing Date: 2004-07-13
Classification: A61M

Abstract:
A device for respiratory assistance comprising:a tube which (i) has a distal end and a proximal end and (ii) forms a main channel, extending from said distal end to said proximal end, and at least one auxiliary channel, said tube for being connected via said distal end to an airway of a patient so that said main channel connects said patient's respiratory system to the outside, said at least one auxiliary channel for being connected, at said proximal end, to a source of respirable gas in order to be able to insufflate a jet of this respirable gas into said respiratory system, said at least one auxiliary channel opening at one end into said main channel in proximity to said distal end, and deflection means for deflecting said jet of respirable ventilation gas in a direction of a longitudinal axis of said main channel, said deflection means being provided opposite a distal orifice of said auxiliary channel in such a way that, downstream of said deflection means, a pressure zone of oblong shape forms inside said main channel, starting at said distal orifice and continuing in a direction of said distal end along said axis of said main channel, with progressive cross-sectional reduction of said pressure zone in a direction away from an inner wall of said main channel such that said pressure zone comes to occupy only a central part of said main channel, wherein said tube comprises, downstream of said deflection means, at least one distribution orifice which opens into said main channel opposite said pressure zone and which can be supplied with a medical fluid.