The present disclosure provides for a flow therapy apparatus that can implement one or more closed loop control systems to control the flow of gases of a flow therapy apparatus. The flow therapy apparatus can monitor blood oxygen saturation (SpO2) of a patient and control the fraction of oxygen delivered to the patient (FdO2). The flow therapy apparatus can automatically adjust the FdO2 in order to achieve a targeted SpO2 value for the patient.

The present disclosure relates to a method for automatic evaluation of a filling volume of an oesophageal balloon catheter (26) inserted into a mechanically ventilated patient (3). The method comprises obtaining (S3-S4) samples of an airway pressure, P.sub.aw, and an oesophageal pressure, P.sub.es, of the patient during an occlusion period in which respiration of the patient is prevented, evaluating (S5) the filling volume of the oesophageal balloon catheter by determining a ratio, ΔP.sub.es/ΔP.sub.aw, between P.sub.es and P.sub.aw from a regression analysis of the P.sub.es and P.sub.aw samples, and communicating (S6) a result of the evaluation to a user.

A mechanical ventilation system comprises a plurality of ventilation therapy sub-systems. Each of the ventilation therapy sub-systems is adapted to assist a respiratory function of the patient. The system also comprises a detector of the respiratory drive of the patient, an operator interface receiving one or more control parameters, and a main controller. The main controller assigns a therapeutic contribution to each of the ventilation therapy sub-systems based on the respiratory drive of the patient and on the control parameters. The controller modulates the respiratory drive of a patient by controlling each of the plurality of the ventilation therapy sub-systems according to its assigned therapeutic contribution. Distinct ventilation therapy sub-systems may apply negative pressure on the abdomen of the patient, deliver a non-pressurizing inspiratory flow to the patient, or induce a positive pressure in the airways of the patient.

The Shared Manifold Ventilator uses low pressure breathing gas manifolds to interface directly with patients in a hospital ward, through solenoid valves in such a way that it achieves lower cost per patient ventilated than prior art methods while still allowing full control of the breathing cycle and oxygen concentration for each individual patient.

A ventilator system, comprising: an inhalation pathway comprising an ambient air inlet, a bi-directional emergency valve, and a dynamic blower; and an exhalation pathway comprising a bi-directional exhalation valve and an exhalation port; wherein when a blockage occurs in the inhalation pathway, ambient air can be drawn from the exhalation port and through the bi-directional exhalation valve, and during exhalation exhalant exits the ventilator through the bi-directional exhalation valve and the exhalation port; wherein when a blockage occurs in the exhalation pathway, inhalant is delivered by the dynamic blower, and during exhalation the dynamic blower lowers its speed or stops and the exhalant exits the ventilator through the bi-directional emergency valve, the dynamic blower, and the ambient air inlet.

The respirator comprises an air bag that is pressurized to provide air to a user, wherein the air bag is a tubular membrane (2) housed within a pressure chamber (1). Furthermore, the pressure chamber (1) comprises fluid inlets and outlets, the fluid pressurizing the tubular membrane (2) to provide air to a user, and protrusions (9) that pressurize the tubular membrane (2). It provides a respirator with reduced dimensions, number of parts, weight, and cost, as well as reusable after autoclave disinfection of the auto-inflatable bag as a standard element.

The present invention refers to a respiratory assistance device that provides respiratory support to patients when they are unable to do it on their own or have difficulties in doing so, where it is made up of a series of electronic, mechanical and control arrangements to execute such actions, providing a constant flow of air/oxygen to the patient.

The present invention generally relates to, amongst other things, systems, devices, materials, and methods that can improve the accuracy and/or precision of nitric oxide therapy by, for example, reducing the dilution of inhaled nitric oxide (NO). As described herein, NO dilution can occur because of various factors. To reduce the dilution of an intended NO dose, various exemplary nasal cannulas, pneumatic configurations, methods of manufacturing, and methods of use, etc. are disclosed.

A device (1), for a ventilation system (100), includes an inhalation valve (10) with an inhalation opening (11) for flow (301) of breathing gas (300) into a pressure chamber (110) to provide breathing gas in the pressure chamber for ventilating a patient (200). A closing element (12) is arranged movably, to close the inhalation opening to flow in a closed position (320) and to at least partially release flow in an open position (310). A transmission device (13) is connected via a connection element (14) to the closing element, to hold the closing element in the closed position in a starting position of the transmission device, such that the inhalation valve is normally closed. A control pressure source (130) provides a control pressure (PS) in a control pressure chamber (15) for the transmission device to move the transmission device out of the starting position by the control pressure.

A ventilator is provided that dynamical adjusts the pressure, flow, and volume of the delivered gas to a patient as the condition of the patient changes. The ventilator adjusts the flow and mixing of gases through flow control valves. The ventilator includes at least two banks of valves, each bank having a plurality of valves, where each valve in the bank has a specific orifice size that is different from at least one other valve in the respective bank of valves. In one example, the ventilator further includes an exhalation valve assembly having an exhalation valve housing and exhalation valve base coupled together to retain a flexible exhalation tube. The exhalation valve assembly including at least two pistons extending at least partially through the exhalation valve assembly to contact the exhalation tube and, when actuated, impart pressure on the walls of flexible exhalation tube to restrict or completely close the flow of air through the flexible exhalation tube.