14 results about "Mechanical ventilators" patented technology

The present disclosure provides a unique solution for assisting in the ventilation of lungs of subject that is performed by artificial mechanical ventilator. The solution of the present invention improves the efficiency of the ventilation effect by applying desired pressure profile on portions of the upper body part of the subject in synchronization with the mechanical ventilator operation, thereby creating a desired pressure profile or gradient in the lungs airways to ensure that air pumped into the lungs by the mechanical ventilator spreads more homogeneously in the lungs than without the intervention of the system of the present invention. The application of pressure is determined after analyzing data from sensors of the system that are placed on a plurality of portions on the upper body part of the subject and data received from the mechanical ventilator. These sensors sense data indicative of the ventilation profile within the lungs, i.e. pressure profile along different portions of the lung. The system provides extra-thoracic pressure on the rib cage according to pre-defined and adaptive algorithms based on the physiological status, the respiratory mechanics, and the inhomogeneous nature of lung injury. By applying pressure to the hyperventilated areas and reducing the transpulmonary pressure gradient, the system prevents hyperinflation trauma to the open areas and atelecto-trauma to the closed areas. The system is synchronized with the mechanical ventilator and adapt to changes in the patient's respiratory mechanics.

A mechanical ventilator includes an oscillating flow controller, a respiratory interface, and an accumulator having a first variable volume chamber fluidly coupled to a bi-directional fluid port of the flow control valve, a second variable volume chamber fluidly coupled to the respiratory interface, a displaceable diaphragm fluidly separating the first variable volume chamber from the second variable volume chamber, and a biasing element configured to bias the diaphragm in the direction of the first variable volume chamber. In use, the oscillating flow controller provides an oscillating fluid output to the accumulator, thereby causing the accumulator to oscillate between first and second states, wherein the accumulator draws breathing air into the second variable volume chamber when transitioning from the second state to the first state, and wherein the accumulator forces breathing air from the second variable volume chamber to the respiratory interface when transitioning from the first state to the second state.

A respiration monitoring device comprises an electronic controller configured to: receive an audio signal that is acoustically coupled with an airway of a patient receiving mechanical ventilation therapy from a mechanical ventilator; map the audio signal to one or more lung disease or injury condition categories; and at least one of: display the mapped one or more lung disease or injury condition categories on a display device; and determine a recommended adjustment to one or more parameters of the mechanical ventilation therapy delivered to the patient based at least on the mapped lung disease or injury condition categories and displaying the recommended adjustment on the display device.

A mechanical ventilation device comprising at least one electronic controller configured to receive imaging data and transpulmonary pressure data associated with a lung of a patient; perform deformable image registration of the inhalation image and the exhalation image to produce a relative compliance or elasticity map of the lungs; convert the relative compliance or elasticity map of the lungs to a quantitative compliance or elasticity map of the lungs based on the inhale transpulmonary pressure and the exhale transpulmonary pressure; and display the information relating to or derived from the quantitative compliance or elasticity map on a display device.

The invention relates to the technical field of garbage treatment, and discloses a negative pressure operation control method, device and equipment for a garbage incineration power plant and a medium. The method comprises the steps that a ventilation network system is generated, and the ventilation network system takes an incinerator combustion fan as a terminal, takes a mechanical ventilator of each odor source workshop as a front end and takes each odor source workshop as a link point; acquiring operation state parameters of the ventilation network system; and on the basis of the operation state parameters, the operation frequency of each mechanical ventilator is adjusted with the real-time combustion-supporting air volume of the incinerator as the system boundary condition, so that each odor source workshop is in a negative pressure state, the harmful gas concentration is in a preset safety interval, and meanwhile, the total energy consumption of fans of the ventilation network is minimum. On the premise that effective negative pressure of all odor source workshops is maintained, odor is prevented from escaping, and it is guaranteed that the concentration of harmful gas is within a safety interval, the operation working condition of the draught fan is actively optimized, and the overall energy consumption of the ventilation system is remarkably reduced.

A mechanical ventilation system (1) includes a mechanical ventilator (2) configured to deliver ventilation to a patient. An electronic controller (13) is programmed to control the mechanical ventilator to perform a mechanical insufflation-exsufflation (MI-E) treatment method (100) that includes performing an MI-E cycle that includes: (i) during an insufflation cycle, delivering pressure to the patient at a positive insufflation gauge pressure; (ii) during an exsufflation cycle after step (i), delivering pressure to the patient at a negative exsufflation gauge pressure, and detecting whether an upper airway collapse occurs; and (iii) if an upper airway collapse is detected in step (ii), decreasing a magnitude of the negative exsufflation gauge pressure.

A respiratory monitoring device includes an electronic controller configured to: analyze an audio signal triggered during inspiratory and expiratory phases of a patient receiving mechanical ventilation therapy from a mechanical ventilator, the audio signal being acoustically coupled into the airway of the patient, to determine resonant frequencies of the airway; determine a shift in the resonant frequencies between the inspiratory and expiratory phases to determine a presence of pendelluft inside of a lung of the patient; and output an indication of the presence of pendelluft.

A ventilator includes a bidirectional breath detection airline and a flow outlet airline. The flow outlet airline includes an airline outlet. The flow outlet airline is configured to be connected to an invasive ventilator circuit or a noninvasive ventilator circuit. The breath detection airline includes airline inlet. The airline inlet is separated from the airline outlet of the flow outlet airline. The ventilator further includes a pressure sensor in direct fluid communication with the breath detection airline. The pressure sensor is configured to measure breathing pressure from the user and generate sensor data indicative of breathing by the user. The ventilator further includes a controller in electronic communication with the pressure sensor. The controller is programmed to detect the breathing by the user based on the sensor data received from the pressure sensor.

A mechanical ventilator may include an oscillating flow controller and a respiratory interface fluidly connected to a bi-directional fluid port of the oscillating flow controller. The mechanical ventilator may be connected to a source of pressurized breathing air. Breathing air from the source of pressurized breathing air may drive the oscillating flow controller to periodically change state according to a predetermined cycle emulating a predetermined breathing pattern. The same breathing air may be provided to a user according to the predetermined cycle.

The present invention relates to an oxygen and air mixing manifold and pressure reducer for a ventilator or respirator with an adjustable chamber, particularly useful for medical mechanical ventilators requiring a high flow rate of gases at low pressure, with the following technical characteristics: Three chambers, two for receiving each gas (31 and 33) and one for mixing (32); pressure reduction (from 25 to 1.5 PSI) by changing the diameter (6 mm to 25 mm); a mixing chamber with variable or adjustable volume; and a gas mixture outlet for the patient. One of the advantages of the composition is that, due to the large quantity of dispersants it provides, along with the reinforcement of the redispersible acrylic polymer that absorbs the different elastic or contraction stresses to which the microcement may be subjected, it does not require expansion joints, as is the case with other similar types of coatings.

In alternative embodiments, provided are mechanical ventilators and methods for making and using them.

A ventilator circuit apparatus is disclosed for the administration of an aerosolized drug from a nebulizer through an endotracheal tube to a patient on a mechanical ventilator with humidification of the breathing gases. In an embodiment, the nebulizer can be disconnected without interrupting the airflow to the patient. In an embodiment, a T-fitting and three-way valve in the ventilator circuit permits the nebulizer to be bypassed by the airflow, allowing the nebulizer to be removed from the apparatus without interrupting the flow of breathing gases to the patient. In an embodiment, the nebulizer is breath-enhanced jet nebulizer. In an embodiment, the jet nebulizer is breath-actuated, by use of an air pressure sensor that toggles the flow of pressurized air to the nebulizer that drives the jet required for nebulization. A related method is also disclosed.

The invention relates to a gas supply installation (1, 2, 3) comprising a gas injection module (500, 800), to which there are connected a mechanical ventilator (2) and an NO delivery apparatus (1). The gas injection module (500, 800) comprises a tubular module body (803) through which there extends an internal passage (811) of longitudinal axis (AA) and which comprises an upstream port (801); a downstream port (802); an external injection conduit (807) connecting to the tubular module body (803) and comprising an internal passage (811) for conveying an NO / N2 gas flow; and a tubular expansion (812) forming an injection nozzle arranged in the internal passage (811) and comprising an injection port (809) arranged at a free end (812.1) and opening into the internal passage (811) of the tubular module body (803). The tubular expansion (812) has a generally curved or angled shape and comprises a section carrying the injection port (809), arranged parallel to the axis (AA) and directed towards the downstream port (802).

Systems and methods for determining airway impedance of a patient undergoing mechanical ventilation are disclosed. A controller including one or more electronic processors is configured to: receive an apparent airway impedance of a patient measured during an impedance estimation procedure by a mechanical ventilator; determine at least one cheek metric based on data received from at least one cheek sensor associated with the patient; determine a cheek impedance based on the at least one cheek metric; and determine a true airway impedance based on the apparent airway impedance and the cheek impedance.