Class / Patent application number | Description | Number of patent applications / Date published |
128204220 | Means for sensing partial pressure, or amount, of component in gas mixture | 65 |
20080196722 | Breathing Assistance Apparatus With a Manifold to Add Auxiliary Gases to Ambient Gases - The breathing assistance apparatus of the present invention includes a manifold that is provided with or retrofittable to gases supply and humidifying devices. The manifold allows gases from an oxygen concentrator to be combined with the flow through a gases supply and humidifying device, most usually air The combined output of oxygen and other breathing gases (air) is then humidified. The breathing assistance apparatus and manifold of the present invention provides a safe method to add oxygen to the input air stream of a gases supply and humidifying device and reduces the amount of accumulation of oxygen within the gases supply device, reducing fire risk should sparking occur within the device. | 08-21-2008 |
20080202524 | SETTING MADATORY MECHANICAL VENTILATION PARAMETERS BASED ON PATIENT PHYSIOLOGY - A method of setting a subject's breath size in controlled mechanical ventilation, comprising varying a subject's tidal volumes and/or inspiratory pressures for a predetermined inspiratory time and predetermined expiratory time; determining end tidal gas concentrations associated with said tidal volumes and/or inspiratory pressures; and curve-fitting a relationship between said tidal volumes and/or inspiratory pressures and said end tidal gas concentrations. | 08-28-2008 |
20080202525 | SETTING MANDATORY MECHANICAL VENTILATION PARAMETERS BASED ON PATIENT PHYSIOLOGY - A method of setting inspiratory time, expiratory time, and a subject's breath size in controlled mechanical ventilation comprises: a) setting a subject's expiratory time; b) setting the subject's inspiratory time; and c) setting the subject's breath size, all based on various criteria. | 08-28-2008 |
20080202526 | INHALATION ANAESTHESIA DELIVERY SYSTEM AND A METHOD FOR LEAK DETECTION IN THE INHALATION ANAESTHESIA DELIVERY SYSTEM - Inhalation anaesthesia delivery system and a leak detecting method, whereby the system comprises a fresh gas feeding arrangement connected to a breathing circuit, a monitor device, The monitor device is configured to monitor gas concentrations in the breathing circuit by using a sampling line. The monitor device is configured to measure at least two gas components' concentrations and identify changes, which are simultaneous towards the known ambient air concentration values of the two gas components' concentrations measured. | 08-28-2008 |
20080236582 | WEANING AND DECISION SUPPORT SYSTEM FOR MECHANICAL VENTILATION - A system for mechanical ventilation treatment is described. In one embodiment the system provides advice on treatment and/or weaning of patients from mechanical ventilation based on the patient's conditions. In another embodiment the system includes apparatus to monitor and analyze the patient's data and data from the mechanical ventilator and controls the ventilator automatically. | 10-02-2008 |
20080236583 | ANAESTHESIA MACHINE ARRANGEMENT AND A METHOD IN CONNECTION WITH AN ANAESTHESIA MACHINE ARRANGEMENT - Anaesthesia machine arrangement and a method in connection with an anaesthesia machine arrangement comprising a gas dispenser of an anaesthesia machine connected to a patient circuit that comprises a monitor device, a control device and an interface unit. The gas dispenser is configured to deliver a desired concentration of fresh gas to the patient circuit, the desired concentration being set by using the interface unit. The monitor device is configured by using a sample line to monitor gas concentration in the patient circuit and the control device is configured to control the gas dispenser from the basis of the data received from the monitor device to keep the desired fresh gas concentration. | 10-02-2008 |
20080295839 | Ventilator Apparatus and System of Ventilation - A ventilator ( | 12-04-2008 |
20090020120 | Monitor for CPAP/ventilator apparatus - A monitor includes a measurement line segment adapted to be coupled between a patient interface and a positive airway pressure device. The measurement line segment defines a gas flow path. A sensor includes two ports in communication with the gas flow path through the measurement line segment, and a recording device is adapted to record data collected by the sensor. | 01-22-2009 |
20090044805 | METHODS AND APPARATUS FOR PRESSURE THERAPY IN THE TREATMENT OF SLEEP DISORDERED BREATHING - A controller or processor for a respiratory pressure treatment device determines an estimate of patient respiratory flow based on a measure of pressure associated with flow generated by a flow generator and a measure of frequency of the flow generator, such as a rotational velocity of a servo-controlled blower motor. The estimate can be made without data from a flow sensor. The measure of frequency may be converted to an expected pressure based on characteristics of the flow generator and subtracted from the measured pressure to determine the flow estimate. The flow estimate can be implemented in the provision of respiratory pressure treatment with the flow generator. For example, the flow estimate may be utilized to trigger expiratory pressure relief during a patient's expiration as detected with the estimated flow signal. | 02-19-2009 |
20090101148 | CONTINUOUS POSITIVE AIRWAY PRESSURE DEVICE BY CONTROLLING THE PRESSURE IN THE FACE MASK - A CPAP device includes an air stream generator for generating positive pressure, a face mask connected to the air stream generator through a flow supply catheter, a pressure sensor measuring pressure in the face mask, a control circuit controlling the air stream generator, and a pressure detection pipe having a first side and a second side. The pressure sensor is connected to the second side of the pressure detection pipe to measure pressure of the detection hole formed at the first side of the pressure detection pipe and outputs the measured pressure value to the control circuit. The control circuit distinguishes average positive pressure from pressure caused by spontaneous breathing of patient according to values of the pressure in the face mask, which are input from the pressure sensor, and controls a speed of the air stream generator such that preset positive pressure is supplied to the patient. | 04-23-2009 |
20090133695 | Mechanical ventilator system - The mechanical ventilator system is a compact and portable artificial respiration system. A negative pressure vortex generator delivers an FiO | 05-28-2009 |
20090139522 | Monitor for automatic resuscitator with optional gas flow control - The present invention pertains generally to a monitoring system for a resuscitator which detects operation of the resuscitator and includes means for informing an operator of function. The monitoring system is triggered by a pressure signal provided by the cycling of the automatic resuscitator from a controlled inhalation phase to a controlled exhalation phase. The monitoring aspect of the system detects specifically a single point low pressure signals which are sequentially compared against an integrated time clock. Failure of the resuscitator system itself to generate a low pressure signal against the integrated time clock causes an alarm condition. Further, gas management is optionally effected by a flow controller integrated into the monitor, a gas management system which responds to the single point low pressure signal and operate a gas valve attached between a gas supply and an automatic resuscitator such that gas is allowed to flow to the resuscitator when the resuscitator is in an inhalation mode and gas flow is interrupted when the resuscitator is in an exhalation mode. The monitoring system includes a low threshold pressure sensor which is actuated by means of a recurrent low pressure pulse generated by the automatic resuscitator itself through the cycling of the resuscitator and remains essentially unaffected by the respiratory cycling of the patient, thus preventing false triggers and greatly simplifying the flow controller operation and format. The low threshold pressure sensor is coupled to a processor wherein the processor reads the occurrence of a pressure event at the pressure sensor and which then closes the gas supply valve and starts a clock. Once the clock reaches a pre-defined duration, the gas supply valve is reopened, the automatic resuscitator continues into an inhalation mode, and the process repeats. | 06-04-2009 |
20090188501 | Self Contained Breathing Apparatus Modular Control System - The claim over prior art is for an approach to an electronically controlled or electronically monitored breathing system that represents an improvement in electrical reliability, manufacturing cost and efficiency, user maintenance, system reliability, user cost and maintenance. These improvements are accomplished by placing the major electronic, mechanical and electromechanical control elements and sensor components in a single replaceable module. | 07-30-2009 |
20090277449 | RESPIRATORY GAS SUPPLY CIRCUIT TO FEED CREW MEMBERS AND PASSENGERS OF AN AIRCRAFT WITH OXYGEN - The invention relates to a respiratory gas supply circuit ( | 11-12-2009 |
20090293876 | System and Method for Adaptive High Frequency Flow Interrupter Control In A Patient Repiratory Ventilator - A method and system for controlling fluid flow settings by receiving a precondition pressure wave function, representative of a precondition frequency, a precondition amplitude and a precondition pressure of the fluid flow in the system, establishing an operating pressure wave function, representative of an operating frequency, an operating amplitude and an operating pressure of the fluid flow desired in the system, determining cycle error between the precondition pressure wave function and the operating pressure wave function, converting the cycle error to flow adjustment, and updating an operating flow with the flow adjustment. | 12-03-2009 |
20090308393 | Medical diagnostic cart and method of use - A medical diagnostic tool provides a fixture mounted on a cart, the fixture having an inspiratory conduit joined with an expiratory conduit, with both joined to a patient interface. An air inlet, and an inlet valve are interconnected in series by the inspiratory conduit; and a manometer is interconnected with the inspiratory conduit between the inlet valve and the patient interface. An air outlet, a spirometer, and an outlet valve are interconnected in series by the expiratory conduit, and a side-stream capnometer is interconnected with the expiratory conduit between the outlet valve and the patient interface. The inlet valve and the outlet valve each enable air flow in only one direction. The inlet valve further provides a shutoff, which when activated, prevents air flow through the inlet valve. | 12-17-2009 |
20090320844 | METHOD TO COMPENSATE FOR THE EFFECT OF RECIRCULATION OF INERT BLOOD SOLUBLE GAS ON THE DETERMINATION OF PULMONARY BLOOD FLOW IN REPEATED INERT GAS REBREATHING TESTS - The present invention discloses a method to compensate for a non-zero mixed venous partial pressure of inert blood soluble gas when determining physical parameter(s) of a patient in successive inert gas rebreathing tests. The method comprises the steps of: obtaining the partial pressure of said inert blood soluble gas inhaled and/or exhaled by said patient in a period prior to said successive rebreathing test; obtaining the partial pressure of said inert blood soluble gas inhaled and/or exhaled by said patient in said successive rebreathing test; determining said physical parameters) using said partial pressure of said inert blood soluble gas inhaled and/or exhaled by said patient and obtained in said period prior to said successive rebreathing test and said partial pressure of said inert blood soluble gas inhaled and/or exhaled by said patient and obtained in said successive rebreathing test. Furthermore the present invention relates to a corresponding system and computer-readable medium. | 12-31-2009 |
20100012124 | REBREATHER RESPIRATORY LOOP FAILURE DETECTOR - A rebreather safety monitoring device comprising a carbon dioxide sensor provided with a gas sampler adapted for sampling a gas in a rebreather breathing loop from a location between an inhale one-way valve on a rebreather mouthpiece and a carbon dioxide scrubber and providing the obtained gas sample to the carbon dioxide sensor, and a means to provide alarms or warnings based on the level of the expired carbon dioxide. The present invention detects a wide range of failures of a rebreather by measurement of the expired carbon dioxide level and application of that level to trigger alarms, provide loop shut-off or provide safety warnings. | 01-21-2010 |
20100043794 | CONDITIONED AIR SUPPLY METHOD AND SUPPLY SYSTEM FOR AIRCRAFT - When conditioned air is supplied in an aircraft, the conditioned air in which at least one of oxygen concentration and humidity is adjusted is generated in the aircraft. The generated conditioned air is blown via a plurality of air blow-off ports | 02-25-2010 |
20100065055 | SYSTEM AND METHOD FOR PROVIDING A BREATHING GAS - Systems and methods for providing a breathing gas are provided. In one embodiment, the method includes sensing a sensed parameter associated with delivery of the breathing gas, changing a control parameter associated with a flow/pressure control element in response to a difference between the sensed parameter and a first predetermined sensed parameter value during a first portion of a breathing cycle, determining a transition from the first portion to a second portion of the breathing cycle based at least in part on the changing control parameter, changing the control parameter to cause a first change in the sensed parameter during the second portion of the breathing cycle based at least in part on the determined transition, and changing the control parameter to cause a second change in the sensed parameter during a third portion of the breathing cycle based at least in part on the first predetermined sensed parameter value. | 03-18-2010 |
20100083966 | DEVICE FOR MONITORING, CONTROLLING AND/OR REGULATING A GAS COMPOSITION - The invention relates to a device and a method for monitoring, controlling and/or regulating a gas composition. Said device comprises at least one training and/or rehabilitation unit; a sensor unit comprising a heatable electrochemical solid electrolyte sensor for oxygen concentration determination and another heatable electrochemical solid electrolyte sensor for carbon dioxide concentration determination; a control unit for the sensors; a microcontroller in the control unit for controlling, according to the respiratory flow volume, the heating power of heating elements of the sensors in order to maintain constant sensor temperatures; and a system for enriching and/or depleting air constituents for producing the gas composition, according to determinable nominal values and/or according to the respiratory gas composition determined by the sensor unit, and the determined respiratory flow volume. | 04-08-2010 |
20100101577 | METHOD AND DEVICE FOR EVALUATION OF SPIROGRAPHIC AND GAS EXCHANGE DATA - The invention provides a method for obtaining and evaluating spirographic and gas exchange data, comprising measuring a concentration of a breathing gas gc(Vx) for a plurality of volumes Vx of breathing gas mix, wherein the measuring is performed on inhaled breathing gas mix, further comprising determining an apparatus dead space ApDS, of breathing gas mix in the apparatus not taking part in gas exchange, by evaluating the measured concentrations gc(Vx) as a function of the volume V of the inhaled breathing gas mix. The use of inhaled breathing gas mix allows to determine the apparatus dead space, which is an important parameter when evaluating ventilation efficiency and the like. Furthermore, the invention provides a method in which inhalation and exhalation parts of a spirogram are synchronised, by matching features thereof, in order to further improve the accuracy of gas exchange volumes and derived data. Finally, the invention provides a spirographic device and a patient ventilation apparatus, incorporating the present method. | 04-29-2010 |
20100139657 | GAS SUPPLY UNIT FOR A RESPIRATORY SYSTEM - The invention relates to a gas supply unit ( | 06-10-2010 |
20100139658 | Oxygen Supply System For An Aircraft - According to an exemplary embodiment of the invention an oxygen supply system for an aircraft is provided, wherein the said system comprises a control valve, a reservoir bag, a respiration device and a sensor device, wherein the control valve is designed in such a way that oxygen can be supplied to the reservoir bag until a predetermined quantity of oxygen is adjusted in the reservoir bag. The respiration device may be designed in such a way that breathing gas can be provided for a passenger. The sensor device may be designed in such a way that an exhalation is detectable. The reservoir bag may he designed in such a way that a predetermined quantity of oxygen can be metered into the reservoir bag during the exhalation. Moreover the reservoir bag may be designed in such a way that breathing gas can be supplied to the respiration device in a pulse-like fashion. The oxygen supply system may comprise a first operation mode and a second operation mode. Furthermore a method for supplying a passenger with oxygen in an aircraft is provided. | 06-10-2010 |
20100275919 | RESPIRATORY SYSTEM AND RESPIRATORY MASK DEVICE - A respiratory system includes: a mask body adapted for attachment to a user's face; a gas supplier connected to the mask body to supply a gas to the mask body; a central control unit associated with the gas supplier to control temperature and humidity of the gas supplied from the gas supplier to the mask body; a sensor unit disposed in the mask body to produce sensing signals and to convert the sensing signals into a signal output that is related to at least temperature and humidity of the gas; and a transmitting unit to transmit the signal output to the central control unit. The temperature and humidity of the gas supplied from the gas supplier is controlled based on the signal output. | 11-04-2010 |
20100300443 | Therapeutic arrangement - A therapeutic apparatus for medical applications is improved in such a manner that the capacity of an energy store can be utilized as best as possible when there is a breakdown of the power supply. A charge level detector ( | 12-02-2010 |
20100313887 | METHOD FOR OPERATING A REBREATHER - The invention relates to a method for operating a rebreather, wherein oxygen is metered to the breathing gas as a function of a signal of at least one oxygen sensor ( | 12-16-2010 |
20110017214 | Automatic Control System For Mechanical Ventilation For Active Or Passive Subjects - A method and an apparatus for controlling a ventilator to automatically adjust ventilation assistance to an active or passive subject. The method includes determining volume and flow rate of gas to the patient during inspiration on an ongoing basis, and generating control signals in proportion to the volume and flow rate of gas to the patient wherein proportionality factors, and support levels for the elastic and resistive components of pressure are automatically adjusted by the ventilator. The ongoing pressure applied by the ventilator is a sum of elastic and resistive pressures that are automatically controlled by the system. When the patient breathes spontaneously, the support levels are automatically adjusted based on the patient's requirements. If the patient does not breathe spontaneously, the ventilator provides ventilation at an optimal level and rate. The method may be used in weaning or in a management phase of ventilation. | 01-27-2011 |
20110114094 | AUTO CALIBRATION / VALIDATION OF OXYGEN SENSOR IN BREATHING APPARATUS - The Invention is directed to an oxygen sensor arrangement ( | 05-19-2011 |
20110126834 | Exhalation Valve Assembly With Integral Flow Sensor - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
20110126835 | Exhalation Valve Assembly With Integrated Filter And Flow Sensor - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
20110132364 | Ventilator Respiratory Gas Accumulator With Dip Tube - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces or eliminates pockets or burps of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change. The disclosure also describes a novel approach for reducing or eliminating these air pockets of undesirable gas by utilizing a dip-tube. | 06-09-2011 |
20110132365 | Ventilator Respiratory Gas Accumulator With Sampling Chamber - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure describes a novel approach for determining the concentrations of gas found in the accumulator by utilizing a sampling chamber. The disclosure further describes a novel approach for a fast delivery of a change in gas mixture to a patient by utilizing a variable-sized accumulator. This disclosure also describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces/eliminates pockets of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change by utilizing at least one of a dip-tube, a purge valve, and a variable size accumulator. | 06-09-2011 |
20110132366 | Ventilator Respiratory Gas Accumulator With Purge Valve - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces/eliminates pockets of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change by utilizing a purge valve. | 06-09-2011 |
20110132367 | Ventilator Respiratory Variable-Sized Gas Accumulator - This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure further describes a novel approach for a fast delivery of a change in gas mixture to a patient by utilizing a variable-sized accumulator. | 06-09-2011 |
20110197885 | METHODS AND DEVICES FOR SENSING RESPIRATION AND CONTROLLING VENTILATOR FUNCTIONS - Improved methods and devices are described for sensing the respiration pattern of a patient and controlling ventilator functions, particularly for use in an open ventilation system. A ventilation and breath sensing apparatus may include a ventilation gas delivery circuit and a ventilation tube coupled to the ventilation gas delivery circuit. A plurality of pressure sensing elements may be separated by a distance and may produce independent signals. The signals may be used to detect pressure differentials between the plurality of pressure sensing elements. Sensing ports may be located in an airway, and connected to transducers that are valved to optimize sensitivity and overpressure protection. Airway pressure and flow can both be obtained and used to optimize ventilator synchronization and therapy. | 08-18-2011 |
20110209703 | ARTIFICIAL VENTILATION APPARATUS - An artificial ventilation apparatus includes: a connecting portion which is connected to a respiratory system of a patient; an inspiratory circuit which is a flow path for flowing a gas from a ventilator to the connecting portion; an expiratory circuit which is a flow path for guiding a gas exhausted from the connecting portion to an exhaust portion of the ventilator; an expiratory valve which blocks a flow of a gas from the exhaust portion toward the connecting portion; a carbon dioxide concentration sensor which is disposed in a circuit that is provided at a downstream side of the expiratory valve and which detects a carbon dioxide concentration; and an alarm outputting unit which outputs an alarm based on an output of the carbon dioxide concentration sensor. | 09-01-2011 |
20110265793 | METHOD AND ARRANGEMENT FOR MAINTAINING VOLUME OF BREATHING GAS IN A DESIRED LEVEL - A method for maintaining a volume of a breathing gas in a desired level when ventilating a subject is disclosed herein. The method includes supplying the volume of the breathing gas for an inspiration and receiving the volume of the breathing gas for an expiration and withdrawing a gas sample from the volume of the breathing gas for an analysis. The method also includes providing a signal indicative of a volume of the gas sample withdrawn and determining the volume of the gas sample based on providing the signal. The method further includes controlling a volume of a compensation gas configured to be added into the breathing gas based on determining the volume of the gas sample for maintaining the breathing gas volume in the desired level. A corresponding arrangement for maintaining a volume of a breathing gas in a desired level is also provided. | 11-03-2011 |
20120006326 | GAS MIXING CONTROL APPARATUS AND METHOD - A ventilator includes first and second pathways, a conduit and a controller. The first pathway ( | 01-12-2012 |
20120055476 | Apparatus and Method for Identifying FRC and PEEP Characteristics - A patient ventilator for assisting a clinician in determining a suitable PEEP for the patient. The amount of the lung volume recruited/de-recruited at various levels of PEEP may be determined for use in selecting a desired PEEP. To this end, the functional residual capacity of the lungs is determined for a first PEEP level. The PEEP is then altered to a second level and a spirometry dynostatic curve of lung volume and pressure data is obtained. The lung volume on the dynostatic curve at a lung pressure corresponding to the first PEEP value is obtained. The difference between the functional residual capacity of the lungs at the first PEEP level and that determined from the dynostatic curve represents the lung volume recruited/de-recruited when changing between said first and second PEEPs. | 03-08-2012 |
20120085349 | RESPIRATOR WITH END-OF-SERVICE-LIFE DETECTION - The present disclosure relates to methods and apparatus for detecting when respiratory cartridges of a respirator have reached their end-of-service-life. In some instances, two or more respiratory cartridges are removably connectable to a respirator housing, where each of the two or more respiratory cartridges receives ambient air and deliver cleaned air to the respirator housing. One of the respiratory cartridges may be configured to have a lower adsorption capacity than the remaining respirator cartridges. A gas sensor may be situated downstream of the reduced capacity respirator cartridge, and may detect an increased concentration of the targeted gas in the cleaned air delivered by the reduced capacity respiratory cartridge. When detected, an end-of-service-life indication may be provided to the user. | 04-12-2012 |
20120174926 | System and Method of Preventing the Delivery of Hypoxic Gases to a Patient - A system for preventing the delivery of hypoxic gases during respiratory support of a patient includes a breathing circuit. An input device is operable by a clinician to input at least one ventilator parameter value. A fresh gas manifold is pneumatically connected to the breathing circuit and the fresh gas manifold is configured to provide at least oxygen and balanced gas to the breathing circuit. A digital signal processor is communicatively connected to the input device and the fresh gas manifold. The digital signal processor receives the input at least one ventilation parameter value, calculate a predicted oxygen concentration, and compares the predicted oxygen concentration to a predetermined minimal oxygen required threshold of the patient. A method of preventing the delivery of hypoxic gases to a patient includes providing ventilatory support to the patient through a breathing circuit. A digital signal processor receives a ventilation parameter value from an input device. The digital signal processor calculates a predicted oxygen concentration, compares the predicted oxygen concentration to a predetermined hypoxic concentration threshold and accepts the ventilation parameter value if the predicted oxygen concentration is above the predetermined hypoxic concentration threshold. | 07-12-2012 |
20120180793 | Dynamic Graphic Respiratory Communication System - The present application is directed toward a dynamic graphic communication system for use with various graphical user interfaces provided on the displays of anesthesia machines and other medical systems. Instead of using traditionally static icon, dynamic graphics are used to provide additional, intuitive information, including real-time information regarding the functioning of various components of an anesthesia machine, such as ventilator system, vaporizers and patient parameter monitors. | 07-19-2012 |
20120204875 | METHOD AND APPARATUS FOR MECHANICAL VENTILATION SYSTEM WITH DATA DISPLAY - A mechanical ventilation system includes at least one processor in communication with a display device and at least one sensor configured to measure an aspect of the air carried by the ventilation system. The at least one processor is configured to receive and process data received from the at least one sensor. The processor is configured to generate and display on the display device a first graph of a measured aspect of the air corresponding to a first time period and a second graph of a measured aspect of the air corresponding to a second time period subsequent to the first time period. The at least one processor is configured to display the second graph superimposed over the first graph. | 08-16-2012 |
20120234324 | SYSTEM FOR PROVIDING SUPPORT THERAPY WHILE DETERMINING CONCENTRATIONS OF A MOLECULAR GASEOUS EXPIRED BY A SUBJECT RECEIVING PRESSURE SUPPORT THERAPY - Pressure support therapy is provided to a subject. The effectiveness of the provided pressure support therapy is determined and/or the therapy is titrated based on determinations of the concentration of one or more gaseous molecular species in gas exhaled by the subject. The determinations of composition of gas exhaled by the subject are obtained from samples with relatively little distortion caused by dilution of expired gases from gases provided to the airway of the subject as part of the pressure support therapy. | 09-20-2012 |
20130000643 | Gas Delivery Device And System - A gas delivery system including a gas delivery device ( | 01-03-2013 |
20130047988 | Hyperbaric Chamber System and Related Methods - Hyperbaric chamber control system and apparatus and related methods. A system for controlling, measuring, and reporting hyperbaric chamber sessions using the partial pressure of oxygen as the lead variable. Air is gently flushed from the bottom of the chamber, upwards, and a nostril-level oxygen pickup measures oxygen concentration in the chamber. Chamber pressure and oxygen concentration values are used to calculate the partial pressure of oxygen, and the session time is adjusted. so that a subject treatment accurately reflects prescribed. treatment. | 02-28-2013 |
20130160767 | EXERCISE MACHINE INCLUDING OXYGEN DISPENSER - An apparatus for providing oxygen to an individual engaging in exercise is disclosed. The apparatus includes a fastener for fastening the apparatus to an exercise machine, a container for holding a gas, a pump coupled with the container for pumping the gas from the container to a conduit, an arch element comprising an arch shaped structural element and a tubular element for receiving gas from the conduit, wherein the arch is disposed over the exercise machine, nozzles disposed in the arch element, wherein the nozzles receive gas from the tubular element and inject gas into the area where the individual resides on the exercise machine, and a processor communicatively coupled to the nozzles, wherein the processor is configured for transmitting control signals to the nozzles, and wherein the control signals are configured to command the nozzles to inject predefined amounts of gas. | 06-27-2013 |
20130174845 | SYSTEM AND METHOD OF OXYGEN DEFICIENCY WARNING IN A POWERED AIR PURIFYING RESPIRATOR - A powered air purifying respirator (PAPR). The PAPR comprises an electric motor mechanically coupled to a blower, an oxygen sensor, an alarm device, and a controller coupled to the oxygen sensor and to the electric motor, wherein the controller controls the electric motor, wherein the controller determines if the oxygen concentration is deficient, and wherein the controller commands the alarm device to present an indication when the oxygen concentration is deficient. | 07-11-2013 |
20130239967 | FLOW RATE COMPENSATION FOR TRANSIENT THERMAL RESPONSE OF HOT-WIRE ANEMOMETERS - Systems and methods are described for application of a transitory corrective modification to a hot-wire anemometer flow voltage and/or calculated flow rate to compensate for transient thermal response of the anemometer during a change in mixture of a mixed gas being measured. According to one embodiment a method of applying the transitory corrective modification is provided. An output signal of an exhalation flow sensor of a medical ventilator is received. The flow sensor includes a hot-wire anemometer. The output signal is indicative of a rate of flow of expired gas by a patient. Transient thermal response of the hot-wire anemometer is compensated for by applying a corrective modification to the output signal or a value based thereon. The corrective modification is based at least in part on a fraction of inspired oxygen (FiO2) being supplied by the medical ventilator to the patient. | 09-19-2013 |
20130306073 | AIRCRAFT DEMAND REGULATOR AND DILUTION REGULATION METHOD - A demand regulator ( | 11-21-2013 |
20130327330 | METHOD FOR PROTECTING AIRCRAFT OCCUPANT AND BREATHING MASK - Method for protecting aircraft occupant comprising the steps of: providing a user ( | 12-12-2013 |
20140238398 | SYSTEM FOR PROVIDING FLOW-TARGETED VENTILATION SYNCHRONIZED TO A PATIENT'S BREATHING CYCLE - A system selectively delivers either breath-synchronized, flow-targeted ventilation (BSFTV) or closed-system positive pressure ventilation (CSPPV) to augment respiration of a patient with a standard tracheal tube. A removable adaptor has a cap that can be removably attached to the proximal connector of the tracheal tube in BSFTV mode, and an inner cannula that extends within the tracheal tube to effectively divide it into two lumens. The adaptor includes a ventilator connector for removably engaging a ventilator hose to deliver air/oxygen through the adaptor and one lumen of the tracheal tube with a flow rate varying over each respiratory cycle in a predetermined waveform synchronized with the patient's respiratory cycle to augment the patient's spontaneous respiration. The adaptor also includes a port allowing the spontaneously-breathing patient to freely inhale and exhale in open exchange with the atmosphere through the other lumen. | 08-28-2014 |
20140283833 | AUTOMATIC PATIENT SYNCHRONY ADJUSTMENT FOR NON INVASIVE VENTILATION - Automatically adjusting the trigger sensitivity of a respiratory therapy system includes detecting errors that indicate the trigger sensitivity should be increased, as well as detecting errors that indicate the trigger sensitivity should be reduced. Error detection may be based on the determined muscle pressure of a subject during an inhalation, an attempted inhalation, and/or a suspected attempt of an inhalation. | 09-25-2014 |
20140305435 | WARMING THERAPY PATIENT CARE UNITS WITH AUTOMATED WEANING MODES - Disclosed herein is a system including a patient support unit having an enclosed patient environment, a heating module, a skin temperature sensor module, an environmental sensor module and a control system. The control system is configured to selectively operate the system in a pre-programmed weaning mode configured to gradually wean the patient from the warmed patient environment according to a series of stepped air temperature decreases performed over a series of stepped time durations to achieve a goal air temperature while maintaining a goal skin temperature within a weaning abort deviation. Related apparatus, systems, methods and/or articles are described. | 10-16-2014 |
20140311491 | APPARATUS TO ATTAIN AND MAINTAIN TARGET END TIDAL PARTIAL PRESSURE OF A GAS - A processor obtains input of a logistically attainable end tidal partial pressure of gas X (PetX[i] | 10-23-2014 |
20140373844 | METHOD AND APPARATUS FOR INCREASING COUGH FLOW - A system and method are configured to utilize patient effort to increase cough flow of a subject by limiting airway collapse by causing a series of exsufflation events over an individual exhalation of the subject. A single exhalation of the subject is segmented into a series of exsufflation events by a processor configured to toggle a pressure regulator between a first airway closed mode and a second airway open mode. The processor is configured such that the transitions between the closed and open modes are initiated based on predetermined timing or based on output signals generated by sensors monitoring one or more gas parameters (for example, pressure) in the airway of the patient. | 12-25-2014 |
20150040903 | STARTING PRESSURE FOR RESPIRATORY THERAPY DEVICES - Systems and methods for providing respiratory therapy to a subject respond and/or adapt to the detection of an occurrence of a respiratory event. For example, the pressure level of a pressurized flow of breathable gas may be increased responsive to the occurrence of one or more apneas. Based on usage information spanning more than one therapy session, such as the tracked pressure levels, a starting pressure level for a pressurized flow of breathable gas for a subsequent therapy session is determined. The starting level at the beginning of the subsequent therapy session(s) may be the 90% pressure level as determined during the preceding period during which usage information has been gathered. | 02-12-2015 |
20150047638 | Breathing Apparatus and Method of Use - A breathing apparatus includes a source of compressed air and a lung demand valve that receives compressed air from the source. A pneumatic valve assembly is connected between the source and the lung demand valve. The pneumatic valve assembly is moveable between a first closed position that prevents a flow of compressed air to the lung demand valve and a second open position that provides a path for compressed air to flow to the lung demand valve. A mask receives the lung demand valve therein. The mask provides the compressed air to a user and having a first operational mode providing filtered ambient air to the user and a second operational mode providing compressed air to the user. A control device is coupled to the pneumatic valve assembly. The control device detects a condition in the air surrounding the apparatus and controlling the pneumatic valve assembly to move between the first closed and second open position and the mask to operate in a respective one of the first and second operational modes. | 02-19-2015 |
20150068526 | Ventilator Apparatus and System of Ventilation - A ventilator for use by a clinician in supporting a patient presenting pulmonary distress. A controller with a touch-screen display operates a positive or negative pressure gas source that communicates with the intubated or negative pressure configured patient through valved supply and exhaust ports. A variety of peripheral, central, and/or supply/exhaust port positioned sensors may be included to measure pressure, volumetric flow rate, gas concentration, transducer, and chest wall breathing work. Innovative modules and routines are incorporated into the controller module enabling hybrid, self-adjusting ventilation protocols and models that are compatible with nearly every conceivable known, contemplated, and prospective technique, and which establish rigorous controls configured to rapidly adapt to even small patient responses with great precision so as to maximize ventilation and recruitment while minimizing risks of injury, atelectasis, and prolonged ventilator days. | 03-12-2015 |
20150107593 | SYSTEMS AND METHODS TO DETERMINE THE FRACTION OF INHALED OXYGEN DURING VENTILATION - Systems and methods to estimate, on a breath-by-breath basis, the fraction of inhaled oxygen during ventilation of a subject. The fraction of inhaled oxygen may be based on exhaled tidal volume, a volume of dead space within the subject interface, leaked exhalation volume, and subsequently inhaled tidal volume and leaked inhalation volume. | 04-23-2015 |
20150136134 | COUGH ASSISTANCE AND MEASUREMENT SYSTEM AND METHOD - Systems and methods are configured to inexsufflate a subject and provide cough-by-cough feedback during treatment and/or therapy of the subject. Through sensors that are included in the systems, various gas and/or respiratory parameters maybe measured and/or determined in real-time, such as, for example, peak cough flow and/or inspiratory tidal volume. | 05-21-2015 |
20160184540 | MINUTE VOLUME AS A SURROGATE FOR EtCO2 IN AUTOMATIC VENTILATION - A method for automatically controlling ventilation of a patient includes receiving a target expiratory CO | 06-30-2016 |
20160184546 | MINUTE VOLUME AND CARBON DIOXIDE CLEARANCE AS SURROGATES FOR EtCO2 in AUTOMATIC VENTILATION - A method for automatically controlling ventilation of a patient includes receiving a target expiratory CO | 06-30-2016 |
20190143061 | OXYGEN GENERATOR FOR RESPIRATION-SYNCHRONIZED OXYGEN SUPPLY | 05-16-2019 |