Abstract: The invention relates to an apparatus for supplying NO (1), such as an NO/N2 gaseous mixture, comprising a main gas circuit (40; 40.1, 40.2) with flow rate control means (42, 43) comprising at least one main solenoid valve (42) operated by the operating means (50) in order to control the flow rate of NO/N2 mixture passing through said at least one main solenoid valve (42). The main solenoid valve (42) is a proportional solenoid valve having degrees of opening of between 0 and 100%, and is configured to function in at least two given operating ranges corresponding to different degrees of opening of the main solenoid valve (42). The operating means (50) are configured to control the main solenoid valve (42) in pulsed mode in one of the operating ranges so as to deliver successive gas pulses (IG) and in proportional mode in another operating range.

Abstract: The invention relates to a calibration device (2) for calibrating the measuring means (120-122) of an NO delivery apparatus (1), comprising a gas intake line (22) comprising, arranged in series, a valve, preferably manual (23) and actuatable by a user, for controlling the circulation of gas in the gas intake line (22); a precision regulator (24) configured to deliver a predefined fixed pressure in the gas intake line (22); a calibrated orifice device (25), and a venturi device (26). The measuring means of the NO delivery apparatus comprise an NO sensor, an NO2 sensor and an O2 sensor.

Abstract: The invention concerns a gas delivery system (1, 2) for providing gaseous Nitric Oxide (NO) to a patient comprising a medical ventilator (2) providing a respiratory gas, such as air, to a patient breathing circuit (3) having an inspiratory limb (31) with a flow sensor (100) and an NO injection module (110), and a NO-delivery device (1) for providing a NO-containing gas to the NO injection module (110) of the inspiratory limb (31), said NO delivery device (1) including a control unit (130) and a differential pressure sensor (104). The medical ventilator (2) can be a High Frequency Oscillatory (HFO) ventilator.

Abstract: An installation for supplying gas to a patient, comprises an NO delivery device, an NO injection line with a valve device, a backup line that connects to the injection line and comprises a backup solenoid valve and a flow rate control device, and control means; and a medical ventilator that supplies a respiratory gas to a patient circuit to which the NO delivery device is connected. A flow rate sensor supplies the control means with a measurement signal of the gas flow rate in the patient circuit. In the event of interruption of reception of the measurement signal, the backup solenoid valve switches to an open position, the valve device switches to a closed position and the flow rate control device supplies the NO/N2 mixture at a pre-regulated backup flow rate, determined on the basis of the measurement signal supplied by the flow rate sensor, before said interruption.

Abstract: Disclosed is a cartridge for storing pressurized gas, including a main body with an internal volume for storing a gaseous mixture NO/N2, and a distribution valve for controlling the output of the gas. The internal volume of the main body is less than 1000 ml. The concentration of NO in the gaseous mixture NO/N2 is between 15000 and 25000 ppmv. The gas pressure in the internal volume is below 15 bar, measured at 23° C. Installation for delivering gas to a patient, including such a gas cartridge, a NO supply device fed by the gas cartridge, and a medical ventilator feeding a patient circuit which has an inhalation branch fed by the NO supply device. Use for treating patients suffering from pulmonary hypertension or hypoxia.

Abstract: Disclosed is an NO delivery device for supplying an NO-containing gas, including an NO injection line, a flow rate measurement device and a valve device. The valve device is normally closed. An emergency line connected to the injection line includes an emergency solenoid valve, which is normally open, and a flow rate control device. An operating unit operates these elements. In the event of malfunction of the operating unit, the emergency solenoid valve passes to an open position, whilst the valve device passes to a closed position. The flow rate control device supplies the gas at a pre-fixed emergency flow rate of gas, determined on the basis of the gas flow rate measurements supplied by the flow rate measurement device during the normal functioning of the device prior to the malfunction. Gas supply installation including such an NO delivery device and a medical ventilator.

Abstract: A resuscitation bag system (1) useable for resuscitating a person in cardiac arrest, and having a gas control unit (90) with a first valve (92) fluidly connected to a first (922) and to a second conduit (923), the first (922) and second conduits (923) being arranged in parallel and further fluidly connected to the first conduit element (56), the first conduit (922) having a first flow restriction (924) configured for limiting the gas flow to a first flowrate, and the second conduit (923) comprising second flow restriction (925) configured for limiting the gas flow to a second flowrate, with the second flowrate being less than the first flowrate.

Abstract: An apparatus (1) for supplying a gas mixture to a patient, having a gas inlet line (30) with a gas inlet orifice (30a) that splits into a first gas line (31) and a second gas line (32); at least one permeation module (33) arranged on the second gas line (32), the said permeation module (33) having a feed port (33a) in fluidic communication with the second gas line (32), a retentate port (33b) and a permeate port (33c); a third gas line (34) in fluidic communication with the retentate port (33b) of the permeation module (33); a fourth gas line (35) in fluidic communication with the permeate port (33c) of the permeation module (33), and coupling fluidically to the said first gas line (31); and a source (360) of air in fluidic communication with the first gas line (31) and the fourth gas line (35).

Abstract: The invention relates to a gas delivery apparatus (1) having an internal gas passage (100), a deformable reservoir (27), a valve device (22), and a control unit (50) with microprocessor (51) controlling the valve device (22) in order to set or adjust the flow rate of gas passing through said valve device (22). A flow rate determination device (60) makes it possible to perform measurements of pressure or flow rate in the internal gas passage (100) and to transmit these measurements to the control unit (50). A pressure sensor (55) performs gas pressure measurements (P55) on the therapeutic gas feeding the deformable reservoir (27) and supplies them to the control unit (50). A breathing mask (10) is in fluidic communication with the internal gas passage (100) in order to be fed with therapeutic gas coming from the deformable reservoir (27).

Abstract: The invention relates to an installation (40) for supplying therapeutic gas, comprising a source (3) of therapeutic gas, a gas delivery apparatus (1) and a respiratory interface (10). The gas delivery apparatus (1) comprises a deformable reservoir fed with gas, a control unit with microprocessor which controls a valve device for controlling the flow rate of gas, a pressure sensor configured to perform gas pressure measurements at the respiratory interface (10) and to supply the gas pressure measurements to the control unit, a flow rate sensor to measure the flow rate of gas supplied and to supply the gas flow rate measurements to the control unit, and alarm means. The control unit is configured to estimate the leaks at the respiratory interface on the basis of the measurements of pressure and of flow rate, in order to ensure a correct concentration of the therapeutic gas in the respiratory interface.

Abstract: The invention relates to a gas delivery apparatus comprising an internal gas passage, a deformable reservoir, a valve device arranged upstream of the deformable reservoir and a control unit with microprocessor controlling the valve device in order to set or adjust the gas flow. A pressure sensor performs gas pressure measurements in a respiratory mask and supplies them to the control unit. The control unit compares the pressure measurements to a pressure threshold value and controls the valve device in order to adjust the gas flow as a function of this comparison, particularly in order to increase the flow when the pressure measured is below the threshold value.

Abstract: The invention concerns a gas delivery system (1, 2) for providing gaseous Nitric Oxide (NO) to a patient comprising a medical ventilator (2) providing a respiratory gas, such as air, to a patient breathing circuit (3) having an inspiratory limb (31) with a flow sensor (100) and an NO injection module (110), and a NO-delivery device (1) for providing a NO-containing gas to the NO injection module (110) of the inspiratory limb (31), said NO delivery device (1) including a control unit (130) and a differential pressure sensor (104). The medical ventilator (2) can be a High Frequency Oscillatory (HFO) ventilator.

Abstract: The invention concerns an artificial resuscitation bag (5) comprising a deformable bag (54) comprising a gas inlet (54A) and a gas outlet (54B), a gas reservoir (59) comprising an outlet orifice (59A), a first conduit element (56) fluidly connected to the outlet orifice (59A) of the gas reservoir (59) and to the gas inlet (54A) of the deformable bag (54), a first one-way admission valve (57) arranged in the first conduit element (56) and fluidly communicating with the ambient atmosphere for allowing ambient air to enter into the first conduit element (56), and a second one-way valve (55) arranged in the first conduit element (56) between the first one-way admission valve (57) and the gas inlet (54A) of the deformable bag (54) for allowing gas to travel only from the first conduit element (56) to the deformable bag (54).

Abstract: The specification describes an artificial resuscitation bag (5) having (i) a deformable bag (54) with a gas inlet (54A) and a gas outlet (54B), (ii) a pneumatic control valve (50) comprising an exhaust port (50c) adapted for controlling the flow of gas exiting to the atmosphere through said exhaust port (50c), and (iii) a monitoring module (60), operably connected to the pneumatic control valve (50) and having an absolute pressure sensor (60d) for measuring at least an absolute pressure (Pabs) in the inner compartment (50f) of the pneumatic control valve (50) and for transmitting at least an absolute pressure signal to a central processing unit (60c) and an ambient pressure sensor (60b) for measuring at least an atmospheric pressure (Patm) and for transmitting at least an atmospheric pressure signal to the central processing unit (60c).

Abstract: The present invention concerns a pneumatic delivery device having three successively-arranged chambers, a membrane element arranged in the third chamber so as to ensure a tight separation of the third chamber into a lower chamber and upper chamber, a membrane element arranged between the second chamber and the lower chamber of the third chamber so as to ensure a tight separation between said lower chamber and second chamber, a stem integrally fixed to the first membrane element and to the second membrane element, a valve cooperating with an outlet orifice arranged between the first chamber and the second chamber, and a flow adjustment element arranged on a gas conduct in fluid communication with the gas outlet of the second chamber, said flow adjustment element being operable by a user for setting a quantity of gas circulating in said gas conduct.

Abstract: A resuscitation bag system (1) useable for resuscitating a person in cardiac arrest, and having a gas control unit (90) with a first valve (92) fluidly connected to a first (922) and to a second conduit (923), the first (922) and second conduits (923) being arranged in parallel and further fluidly connected to the first conduit element (56), the first conduit (922) having a first flow restriction (924) configured for limiting the gas flow to a first flowrate, and the second conduit (923) comprising second flow restriction (925) configured for limiting the gas flow to a second flowrate, with the second flowrate being less than the first flowrate.

Abstract: An apparatus (1) for supplying a gas mixture to a patient, having a gas inlet line (30) with a gas inlet orifice (30a) that splits into a first gas line (31) and a second gas line (32); at least one permeation module (33) arranged on the second gas line (32), the said permeation module (33) having a feed port (33a) in fluidic communication with the second gas line (32), a retentate port (33b) and a permeate port (33c); a third gas line (34) in fluidic communication with the retentate port (33b) of the permeation module (33); a fourth gas line (35) in fluidic communication with the permeate port (33c) of the permeation module (33), and coupling fluidically to the said first gas line (31); and a source (360) of air in fluidic communication with the first gas line (31) and the fourth gas line (35).

Abstract: The invention concerns a gas delivery device (1) comprising an inner gas passage (100) in fluid communication with a deformable reservoir (27), and a processing unit (51), such as an electronic board with a microcontroller. It further comprises reservoir detection means (26, 260) cooperating with the deformable reservoir (27) and with the processing unit (51) for determining a distance (D) between said reservoir detection means (26, 260) and said deformable reservoir (27), and a proportional valve (22) arranged on the inner gas passage (100) for controlling the flowrate of gas in said inner gas passage (100). The processing unit (51) controls the proportional valve (22) for adjusting the flowrate of gas traversing said proportional valve (22) on the basis of said distance (D) between the reservoir detection means (26, 260) and the deformable reservoir (27).

Abstract: The invention concerns a gas delivery device (1) comprising an inner gas passage (100) in fluid communication with a deformable reservoir (27), and a processing unit (51), such as an electronic board with a microcontroller. It further comprises a first differential pressure sensor (281) cooperating with the processing unit (51) for determining a pressure (P) in the deformable reservoir (27), and a proportional valve (22) arranged on the inner gas passage (100) for controlling the flowrate of gas in said inner gas passage (100). The processing unit (51) controls the proportional valve (22) for adjusting the flowrate of gas passing through said proportional valve (22) on the basis of said pressure (P) in the deformable reservoir (27). The gas can be a mixture of oxygen and nitrous oxide useable for relieving anxiety, for providing light sedations or for treating pain.

Abstract: The invention concerns a gas mixer (1) comprising a first mixing vessel (42) and a second mixing vessel (52); a first line (22) for providing a first gas and a second line (32) for providing a second gas, the first and second lines (22, 32) being in fluid communication with the first mixing vessel (42) and with the second mixing vessel (52) for proving said first and second gases to said first and second mixing vessels (42, 52); and a third line (12) for providing a third gas, said third line (12) being in fluid communication with the second mixing vessel (52).