Abstract: A system and method are provided for identifying breath variability events from patient respiratory data obtained during the operation of a mechanical ventilator. The ventilator monitors and saves patient respiratory data during operation. The method includes extracting treatment parameters from a ventilation prescription, and using the treatment parameters to determine an Epoch size and a frequency band for analysis. An input signal (flow or pressure) is extracted from the patient data and from the input signal at least one parameter is extracted and analyzed. A Spectral Energy (Es) of the input signal is determined based on the signal parameter, an Epoch size and a frequency band and a Spectral Entropy (SE) is determined based on the Spectral Energy (Es). The Spectral Entropy may then be displayed in graphical form to identify breath variability events over the Epoch size. The method may further classify the type and degree of the events.

Abstract: A system and method are provided for dynamically controlling the operation of a mechanical ventilator. A saved prescription includes a base or therapeutic ventilation configuration, intervention logic for identifying an intervention entrance condition, and an intervention configuration. The ventilator system initially operates in the base configuration, continuously monitors readings from patient biometric sensors, continuously determines, according to the intervention logic and the monitored readings, if an intervention entrance condition is present. If the entrance condition is present, the system dynamically reconfigures into the intervention configuration.

Abstract: A system and method are provided for dynamically controlling operation of a mechanical ventilator for automatic targeting of a monitored parameter. A ventilator prescription includes an initial ventilator configuration, a prescribed target biometric value, comparator formulae for comparing a current condition value to the prescribed target biometric value, and modification formulae for generating modification parameters to modify the current configuration of the system. The ventilator system operates according to the initial configuration, continuously monitors patient biometric sensors and system biomarker calculators, periodically determines a current condition value, and compares the current condition value to the target biometric value.

Abstract: A system is provided for dynamically controlling operation of a ventilator for automatic adjustment of one or more operational settings based on patient biometric data. A ventilator prescription includes initial operational settings, minimum and maximum operational boundaries for each operational setting, a health score formulae for determining a current health score based on patient biometrics, an interval for evaluating current operational settings, and a selected optimization protocol for systematically trialing one of the operational settings to optimize the current health score. The ventilator starts with the initial configuration, monitors patient biometrics, periodically determines a current health score, systematically trials new operational settings and for each trialed setting that improves the Health Score resets the current configuration to the trialed confirmation (hill climbing methodology).

Abstract: The present teachings relate to a device and a method for treating a subject, wherein an actuator is configured for external mechanical contact with the subject, wherein a control unit is configured to control the actuator to provide at least one burst of a primary vibration, and wherein the primary vibration has one or several frequencies, or a frequency varying, within an operative frequency range contained in a range from 5 Hz to 1000 Hz, in order for the device to generate a shear wave which propagates inside the body of the subject. In addition, the present teachings relate to use of a device of the present teachings to treat a breathing-related sleep disorder, including snoring, OSA, UARS, or OHS.

Abstract: A turbulator adapted to be mounted to or inserted in an inlet portion of a flow meter for a ventilator is disclosed. The turbulator is adapted to create a turbulent gas flow in the inlet portion downstream of the turbulator upon passage of a gas flow therethrough. A flow meter for a ventilator is provided. The flow meter may comprise such turbulator. The turbulator may be arranged in the inlet portion of the flow meter. A membrane for a ventilator flow meter is provided, as well as a flow meter comprising the membrane. A flow meter comprising a turbulator and a membrane is disclosed.

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: A turbulator adapted to be mounted to or inserted in an inlet portion of a flow meter for a ventilator is disclosed. The turbulator is adapted to create a turbulent gas flow in the inlet portion downstream of the turbulator upon passage of a gas flow therethrough. A flow meter for a ventilator is provided. The flow meter may comprise such turbulator. The turbulator may be arranged in the inlet portion of the flow meter. A membrane for a ventilator flow meter is provided, as well as a flow meter comprising the membrane. A flow meter comprising a turbulator and a membrane is disclosed.

Abstract: A turbulator adapted to be mounted to or inserted in an inlet portion of a flow meter for a ventilator is disclosed. The turbulator is adapted to create a turbulent gas flow in the inlet portion downstream of the turbulator upon passage of a gas flow therethrough. A flow meter for a ventilator is provided. The flow meter may comprise such turbulator. The turbulator may be arranged in the inlet portion of the flow meter. A membrane for a ventilator flow meter is provided, as well as a flow meter comprising the membrane. A flow meter comprising a turbulator and a membrane is disclosed.

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 ventilator for supplying breathable gas to a patient includes an external housing; an internal housing suspended within; a gas flow generator within said internal housing; a gas inlet conduit extending between a first gas inlet opening in said external housing and a second gas inlet opening in said internal housing, and a gas outlet conduit extending from a first gas outlet opening in the internal housing via a second gas outlet opening in the external housing and to a patient interface means adapted for introducing the breathable gas into the airway of said patient. One or both of the gas inlet and outlet conduits exhibit a first substantially rigid conduit section and a second membrane conduit section with a membrane wall portion separating a volume of breathable gas within the gas inlet conduit and/or gas outlet conduit from a volume of ambient air within the external housing.

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 method for the detection and treatment of disordered breathing during sleep employs an artificial neural network (ANN) in which data related to breathing gas flow are analyzed. A respiratory circuit is established by connecting the patient to a continuous positive airway pressure (CPAP) system with pressurized breathing gas supply, the gas flow in the circuit is periodically sampled, one or several cepstrum parameters distinctive of various breathing patterns are periodically calculated; the parameter values are periodically fed to an ANN trained to recognize breathing patterns characteristic of sleep disordered breathing and are analyzed in the network, the CPAP pressurized breathing gas supply is controlled in response to the ANN output. Also disclosed is a corresponding apparatus.

Abstract: Device for temporary breathing assistance at snoring problems during sleep and curing of obstructive sleep apnea by means of a source (34) of pressurized air connected to the air passages of the sleeping person via a breathing mask (32). A sensor (30) is arranged inside or at the breathing mask (32), which sensor is designed to connect said pressurized air source (34), by way of a control apparatus (36) during a controllable period of time, e.g. corresponding to some breaths, which pressurized air source is provided to emit a certain amount of air with a settable respiratory positive pressure, which can cure the sleeping apnea.