Abstract: Example embodiments presented herein are directed towards a system, and corresponding method, for providing ventilation synchronization between breathing gas supplied by a mechanical ventilator and the breathing needs of a patient. In providing the ventilation synchronization, a total amount of energy required during an inspiratory phase of breathing is calculated. Based on the calculated energy, a decay factor is determined. The decay factor is supplied to an inspiratory triggering system in order to provide the ventilation synchronization.

Abstract: Example embodiments presented herein are directed towards a system, and corresponding method, for providing ventilation synchronization between breathing gas supplied by a mechanical ventilator and the breathing needs of a patient. In providing the ventilation synchronization, a total amount of energy required during an inspiratory phase of breathing is calculated. Based on the calculated energy, a decay factor is determined. The decay factor is supplied to an inspiratory triggering system in order to provide the ventilation synchronization.

Abstract: The present invention relates to a solution for controlling the pressure/flow of breathing gas to a mechanical ventilator (4) by using an energy of breathing analysis and further to provide a pressure relief during exhalation and a trigger determination when to start the pressure relief using energy content of breathing in analysis for determining a pressure curve form during at least a portion of the expiration phase.

Abstract: A method and apparatus for facilitating breathing using a mechanical breathing gas ventilator is presented. The patient effort is deduced from a measured flow signal and analyzed with respect to the energy in the breathing system comprising the mechanical ventilator and the patient. When a predetermined energy threshold has been reached the ventilator responds to the breathing pattern change.

Abstract: A ventilator apparatus, method, system, and computer program for determining leakage in a flow circuit providing pressurized gas to a patient having breathing disorder. The present invention determines the leakage by calculating a ratio between a measured flow of gas and a determined flow of gas related to a standard leakage. The determined standard leak flow may be calculated from a formula derived from Bernoulli's theorem. The invention may further be arranged to use a volume difference between inspiration and expiration phases in the compensation process.

Abstract: The present invention relates to a solution for controlling the pressure/flow of breathing gas to a mechanical ventilator (4) by using an energy of breathing analysis and further to provide a pressure relief during exhalation and a trigger determination when to start the pressure relief using energy content of breathing in analysis for determining a pressure curve form during at least a portion of the expiration phase.

Abstract: A method and apparatus for facilitating breathing using a mechanical breathing gas ventilator is presented. The patient effort is deduced from a measured flow signal and analyzed with respect to the energy in the breathing system comprising the mechanical ventilator and the patient. When a predetermined energy threshold has been reached the ventilator responds to the breathing pattern change.

Abstract: A method, system, apparatus, and computer program for detecting breathing pattern changes and controlling a mechanical ventilator in accordance to changes of breathing air flow thus reducing the work of breathing for the patient.

Abstract: A method and apparatus for detecting breathing disorders and controlling a breathing ventilator using an artificial neural network working on signals indicative of a patient's physiological status. Preferably the artificial neural network works on a signal indicative of the pressure or flow of supplied breathing gas divided into two or more intervals (401, 402, 403, 404) indicative of patient (1) breathing cycle phases.

Abstract: A ventilator for supplying breathable gas to the airway of a patient with a respiratory disorder is provided herein an, in one embodiment, includes a gas flow generator for generating a flow of said breathable gas to the patient, said gas flow generator comprising a gas flow generator chamber provided with a gas inlet opening and a gas outlet opening; a control valve for controlling the flow and/or pressure of the gas distributed to the patient, said control valve comprising a valve body which is rotatably arranged about a rotational axis within a valve chamber. The valve body essentially exhibits the shape of a sector of a circle, in such a way that an arced first flow regulatory surface is formed along the circular arc of said sector, and that second and third essentially straight flow regulatory surfaces, respectively, are formed along the two diverging sides of said sector.

Abstract: A ventilator for supplying breathable gas to the airway of a patient with a respiratory disorder, comprising: a gas flow generator, such as an electric fan, for generating a flow of said breathable gas to the patient, said gas flow generator comprising a gas flow generator chamber provided with a gas inlet opening and a gas outlet opening; a control valve for controlling the flow and/or pressure of the gas distributed to the patient, said control valve comprising a valve body which is movably arranged within a valve chamber, wherein said gas flow generator chamber and said valve chamber are integrally formed in a combined gas flow generator & control valve housing; said valve chamber is located in immediate conjunction to the gas outlet opening of the gas flow generator chamber within said combined gas flow generator & valve housing; and said valve body comprise transitions portions for providing smooth pressure and/or flow transitions during transitions between closed and open positions of said contr