Taema

Stephane Ruton

Nicolas Bloch

A respiratory assistance device, includes an inhalation branch (,) which is permanently connected, at its upstream end, to a first source (,) of a flow of pressurized gas and, at its downstream end, to a user's airway; at least a first (,) and a second (,) exhalation valve, these being arranged on the respiratory branch (,) and controlled so that they are closed during the inhalation phase; a detection unit (,) which, in proximity to the downstream end of the inhalation branch, detects the user's respiratory activity and sends a respiratory-activity data item to drive element (,), the drive element (,) controlling the first gas flow source (,) in such a way as to deliver a gas stream with substantially constant non-zero flow rate to the inhalation branch (,) throughout the exhalation phase.

Respiratory assistance device

A process and device to determine the image of the nasal and/or buccal respiratory flow of a user, in which a respiratory gas at at least one pressure level is administered by means of at least one blower driven by a motor. The current consumed by the blower motor is continuously measured and a consumed current signal is generated. The consumed current signal is processed and an image of the nasal and/or buccal respiratory flow of the user is determined from the processed current signal.

Process for determining the image of the nasal and/or buccal respiratory

A sealed receptacle (1) contains the additive in liquid phase. A dip tube (3) permits sending the additive to a heating enclosure (5) in which the liquid vaporizes before being sent to a collector-mixer (11) through a constriction (10). The flow rate of additive is controlled by the pressure prevailing above the liquid in the receptacle (1) thanks to a control valve (20) connected by a pressure regulator (25) to a computer (26). This latter receives predetermined values of concentration of the mixture through an input (27). It is preferably connected to a detector (28) of the temperature of the enclosure and/or to an analyzer (30) of the composition of the mixture. Used particularly in anesthesia apparatus.

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Viroflay, France

Stephane Ruton