44 results about "Mechanical ventilators" patented technology

A diaphragm measurement device includes at least one electronic processor programmed to perform a diaphragm measurement method including receiving ultrasound imaging data of a dimension of a diaphragm of a patient during inspiration and expiration while the patient undergoes mechanical ventilation therapy with a mechanical ventilator; receiving respiratory data of the patient during inspiration and expiration while the patient undergoes the mechanical ventilation therapy; calculating a diaphragm thickness metric based on the received ultrasound imaging data of the diaphragm of the patient and the received respiratory data; and displaying, on a display device, a representation of the calculated diaphragm thickness metric.

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.

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 non-transitory storage medium stores instructions readable and executable by at least one electronic processor to receive clinical data for a current patient (P); search a database of CT scans and / or patient-specific mechanical ventilation models for other patients using the clinical data for the current patient as a search criterion to identify a similar patient in the database and similar patient data (S) comprising a CT scan and / or a patient-specific mechanical ventilation model for the similar patient; determine a patient-specific mechanical ventilation model for the current patient based on the CT scan and / or patient-specific mechanical ventilation model for the similar patient; generate ventilator configuration data for mechanically ventilating the current patient based on the determined patient-specific mechanical ventilation model for the current patient.

The present invention includes devices that relate to, for example, humidification systems for making humidified ventilator air that include a transparent or semi-transparent polymer-based heating element sleeve or sheet for the insulation of a tube delivering heated and humidified gas to a subject, comprising: a self-regulated heater and self-limiting heater, wherein the tubing is enveloped by the transparent heating sleeve, wherein the heating sleeve maintains at least one of: rates of relative humidity, absolute humidity and gas temperature, and wherein the heating sleeve envelops the tubing of inspiratory or expiratory limbs or ports connected to a mechanical ventilator providing gas to a subject.

A passive lung simulator device is provided. It includes a casing or box that includes a first lung simulator balloon; an air collector coupled to one end of the first balloon; a first set of servo valves, arranged in series, connected to the air collector via air flow conduits; and a connection element for a mechanical ventilator. The servo valves are configured to independently recirculate the air flow passing through them to the air collector, expanding the balloon. It also includes a first set of cams to be actuated by a servomotor to modify the compliance or capacity of the balloon simulator through the rotation of the first set of cams; and a communications module connected to the first set of servo valves and the first set of cams, with wireless connection to a remote computing device to receive instructions to simulate different pulmonary pathologies.

A device for biofilm removal from an endotracheal tube is disclosed. Such a device may include a hollow catheter having a tip, wherein said device is inserted down an endotracheal tube of an orally intubated patient. Said tip may include a cylindrical central portion and a fin configured to dislodge biofilm from the inner lumen of the endotracheal tube as the device is rotated, either manually or mechanically, inside the endotracheal tube. The fin may be configured as a helix and positioned to spiral around said cylindrical central portion of the tip thereby forming a channel, defined by the pitch of said helix, about the circumference of the cylindrical central portion. Biofilm dislodged from the inner surface of the endotracheal tube by the rotational motion of the fin may be retained within the channel until the tip is removed from the endotracheal tube. The device may further comprise a motor for mechanically rotating the catheter and tip. Finally, the device may be configured to interface with a mechanical ventilator such that airflow to an intubated patient is not impeded while said device is used to remove biofilm from the inner surface of the patient's endotracheal tube.

A mechanical ventilation device comprising at least one electronic controller is configured to receive images of lungs of a patient undergoing mechanical ventilation therapy with a mechanical ventilator, the images being acquired over time and having timestamps; process the images to generate timeline images at corresponding discrete time points; and display a timeline of the timeline images on a display device.

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 method is for patient body temperature control during gas exchange treatment of a patient, such as extracorporeal membrane oxygenator [ECMO] treatment provided by an ECMO device and / or respiratory treatment provided by a mechanical ventilator. The method comprises the steps of determining a gas exchange being at least one of a carbon dioxide [CO2] exchange and an oxygen [O2] exchange between an oxygen-containing gas and blood of the patient; inducing a change in temperature of the patient; detecting a change in the gas exchange following the change in the temperature of the patient, and automatically controlling the temperature of the patient based on the detected change in gas exchange, and / or presenting a recommendation for manual adjustment of the temperature of the patient to a user, based on the detected change in gas exchange.

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 passive lung simulator device is provided. It includes a casing or box that includes a first lung simulator balloon; an air collector coupled to one end of the first balloon; a first set of servo valves, arranged in series, connected to the air collector via air flow conduits; and a connection element for a mechanical ventilator. The servo valves are configured to independently recirculate the air flow passing through them to the air collector, expanding the balloon. It also includes a first set of cams to be actuated by a servomotor to modify the compliance or capacity of the balloon simulator through the rotation of the first set of cams; and a communications module connected to the first set of servo valves and the first set of cams, with wireless connection to a remote computing device to receive instructions to simulate different pulmonary pathologies.

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 present invention includes devices that relate to, for example, humidification systems for making humidified ventilator air that include a transparent or semi-transparent polymer-based heating element sleeve or sheet for the insulation of a tube delivering heated and humidified gas to a subject, comprising: a self-regulated heater and self-limiting heater, wherein the tubing is enveloped by the transparent heating sleeve, wherein the heating sleeve maintains at least one of: rates of relative humidity, absolute humidity and gas temperature, and wherein the heating sleeve envelops the tubing of inspiratory or expiratory limbs or ports connected to a mechanical ventilator providing gas to a subject.

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 fluid device for a mechanical respirator has an inlet configured to receive fluid from a pressurized source. The device includes a device nozzle having a device nozzle axis, a device nozzle length, and a device nozzle width. The device includes at least one port having an opening to an environment external to the device. The device is configured such that an ambient fluid enters the device through the port and mixes with a source fluid from the inlet to define a diluted fluid mixture. The device is further configured such that the diluted fluid mixture enters the device nozzle.

The present disclosure relates to methods for patient body temperature control during gas exchange therapy of a patient (3), such as extracorporeal membrane oxygenator [ECMO] therapy provided by an ECMO device (5) and / or respiratory therapy provided by a mechanical ventilator (7). The method comprises the steps of: determining that the gas exchange is at least one of a carbon dioxide [CO2] exchange and an oxygen [O2] exchange between the oxygen-containing gas and the blood of the patient (3); causing a temperature change in the patient (3); a change in the gas exchange following a change in the temperature of the patient (3) is detected, and the temperature of the patient (3) is automatically controlled on the basis of the detected change in the gas exchange, and / or a user is suggested with respect to a manual adjustment of the temperature of the patient (3) on the basis of the detected change in the gas exchange.

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.

The invention relates to a home type mechanical ventilator used for continuous or intermittent ventilation support of patients, in which the capacity is wasted or not used during expiration (exhalation), generally storing the amount of oxygen supplied or stopped to the environment and the entire amount of oxygen entering from the source and delivering it to the patient without wasting any unit of oxygen capacity and providing higher oxygen saturation to the patient.

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 system and method are provided for identifying breath variability events from patient respiratory data obtained during the operation of a mechanical ventilator (10). 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.

A fluidic device for a mechanical ventilator has an inlet configured to receive fluid from a pressurized source. The device includes a device nozzle having a device nozzle axis, a device nozzle length, and a device nozzle width. The device includes at least one port having an opening to an environment external of the device. The device is configured so that ambient fluid enters the device through the port and mixes with a source fluid from the inlet to define a diluted fluid mixture. The device is further configured so that the diluted fluid mixture enters the device nozzle.

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.

This invention provides a mask for an mechanical ventilator, including a first opening portion that takes in inspired air from the mechanical ventilator, a second opening portion that has an edge abutting against a skin of a user to send the inspired air to at least one of a nose and a mouth of the user, and a bellows portion that is formed on at least a part of the edge of the second opening portion, forms a space for temporarily storing the inspired air and expired air of the user between the first opening portion and the second opening: portion, and deforms following a shape of a face of the user.

The invention relates to a mechanical ventilator (1) comprising a cooling device (7). According to the invention, the cooling device is arranged outside the IP-protected region (2) of the mechanical ventilator, and an object (6) to be cooled is arranged in such a way that it extends from the IP-protected region into the region of the cooling device.

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.

Oxygen Re-Use Breathing System for Recycling Oxygenated Gas from Mechanical Ventilator Exhaust for Emergency Life-Saving NRBM (ELSN) Circuits to address oxygen shortages in emergency healthcare settings. This non-electronic, single- use disposable device aims to reduce mortality rates during crises by repurposing wasted oxygen from mechanical ventilator exhaust. The system comprises a flexible gas receiving tube, double one-way valve 'Y' piece connector with microfilter, and collapsible rubber reservoir bag, facilitate efficient oxygen recycling. The device also features a specialized NON- REBREATHER oxygen mask and reservoir bag for optimal patient oxygenation. Additionally, it provides functionalities such as aerosol- medicated nebulization and humidifier oxygen delivery without electronic equipment. By harnessing ventilator exhaust gas pressure, the device offers a cost-effective means to increase oxygen bed strength during mass casualty incidents in war, pandemic outbreaks, and natural disasters, thereby saving lives and mitigating healthcare resource strain.