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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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07-06-2012 дата публикации

Gas dispenser for dispensing accurate doses of therapeutic gas from a reservoir containing highly compressed therapeutic gas

Номер: US20120138053A1

Автор: Troy A. CARTER

Принадлежит: Capnia Inc

Described here are devices for intranasally delivering therapeutic gases to a patient. The devices may include a measurement chamber, a combination of pressure regulators and a sequencing mechanism that controls valves associated with the pressure regulators. When implemented in a hand-held dispenser, the hand-held dispenser may reliably deliver consistent doses of gas regardless of the unknown state and pressure of the therapeutic gas in the measurement chamber.

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Номер записи: 1

09-08-2012 дата публикации

Intermittent dosing of nitric oxide gas

Номер: US20120199123A1

Автор: Alex Stenzler, Bevin B. McMullin, Chris Miller

Принадлежит: Pulmonox Technologies Corp, Sensormedics Corp

A method and corresponding device are described for combating microbes and infections by delivering intermittent high doses of nitric oxide to a mammal for a period of time and which cycles between high and low concentration of nitric oxide gas. The high concentration of nitric oxide is preferably delivered intermittently for brief periods of time that are interspersed with periods of time with either no nitric oxide delivery or lower concentrations of nitric oxide. The method is advantageous because at higher concentration, nitric oxide gas overwhelms the defense mechanism of pathogens that use the mammalian body to replenish their thiol defense system. A lower dose or concentration of nitric oxide gas delivered in between the bursts of high concentration nitric oxide maintains nitrosative stress pressure on the pathogens and also reduces the risk of toxicity of nitric oxide gas.

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Номер записи: 2

01-11-2012 дата публикации

Two-phase surgical procedure for creating a pneumostoma to treat chronic obstructive pulmonary disease

Номер: US20120277584A1

Автор: David C. Plough, Don Tanaka, Joshua P. Wiesman

Принадлежит: Portaero Inc

A two-phase surgical procedure is disclosed for creating a pneumostoma to treat chronic obstructive pulmonary disease The first phase is a procedure to induce creation of a localized pleurodesis and is preferably performed as an outpatient procedure. The second phase is a procedure to introduce a surgical instrument into the lung via the pleurodesis to create the pneumostoma. An interval of about one of more days between the first and second phases allows the formation of a stable pleurodesis to prevent pneumothorax during the procedure.

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Номер записи: 3

15-11-2012 дата публикации

Mechanical Insufflation/Exsufflation Airway Clearance Apparatus

Номер: US20120285460A1

Автор: Christopher Ikei, Dano S. Carbone, Kirk W. Smith, Lewis W. Ward, Tammy STULTZ

Принадлежит: LUNG ASSIST Inc

An MIE apparatus has a blower, a direction valve, an oscillator, and a mask hose connector. The blower is connected to the direction valve, which is connected to the oscillator, which is connected to the hose connector. During insufflation, a direction valve connects exhaust of a blower to an oscillator, causing positive pressure at the hose connector. During exsufflation, the direction valve connects the blower intake to the oscillator, causing negative pressure at the hose connector. The oscillator is a butterfly valve with a 360° rotating disc. During insufflation, the disc is fixed to steadily modulate the airflow. During exsufflation, the oscillator is inactive or in flutter mode. When inactive, the disc is fixed to allow maximum air flow. In flutter mode, the disc continuously rotates so that the air flow rapidly alternates between maximum and minimum.

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Номер записи: 4

13-06-2013 дата публикации

Apparatus and method for improved assisted ventilation

Номер: US20130146051A1

Автор: Clay NOLAN

Принадлежит: Colabs Inc

Devices and methods for allowing for improved assisted ventilation of a patient. The methods and devices provide a number of benefits over conventional approaches for assisted ventilation. For example, the methods and devices described herein permit blind insertion of a device that can allow ventilation regardless of whether the device is positioned within a trachea or an esophagus.

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Номер записи: 5

19-09-2013 дата публикации

Methods Of Administering High Concentrations Of Nitric Oxide

Номер: US20130239963A1

Автор: Brahm Goldstein, Douglas Stuart Greene

Принадлежит: INO THERAPEUTICS LLC

Described are methods of administering therapeutic gases comprising high concentrations of nitric oxide, particularly concentrations above 2,000 ppm. The therapeutic gas may be administered at a certain dosing rate, such as less than 166 micrograms of nitric oxide per second. Also described are methods of administering a therapeutic gas comprising nitric oxide to a patient, wherein a dose of nitric oxide is administered from a portable device that includes a delivery system and a mini-cylinder. Methods of intermittent administration of nitric oxide pulses are also described.

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Номер записи: 6

26-12-2013 дата публикации

Method of measuring cardiac related parameters non-invasively via the lung during spontaneous and controlled ventilation

Номер: US20130345586A1

Автор: Alex Vesely, David Preiss, Eltan Prisman, Joseph Fisher, Ron Somogyi, Steve Iscoe, Takafumi Asami

Принадлежит: Thornhill Scientific Inc

An apparatus to measure pulmonary blood flow and cardiac output (Q) comprising: a) a breathing circuit which, at exhalation, keeps exhaled gas separate from inhaled gas and at inhalation, when V E is greater than first gas set (FGS) flow, results in a subject inhaling FGS first and then a second gas set (SGS), for the balance of inhalation; b) a gas sensor for monitoring gas concentrations at the patient-circuit interface; c) a gas flow control means for controlling the rate of FGS flow into the breathing circuit; d) machine intelligence consisting of a computer or logic circuit capable of controlling the gas flow control means which receives the output of the gas sensor means and outputs pulmonary blood flow.

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Номер записи: 7

16-01-2014 дата публикации

Compensation for unmeasurable inspiratory flow in a critical care ventilator

Номер: US20140014093A1

Автор: Jessica B. Payne, Matthew Michael Stephenson, Paul Hunsicker

Принадлежит: General Electric Co

A system and method for operating a ventilator to compensate for external gas flow reaching a patient from an external device, such as a nebulizer. A control unit of the ventilator monitors the gas flow rate from the ventilator and compares the gas flow rate from the ventilator to an expired gas flow rate from the patient. The difference between the inspired flow rate and the expired flow rate is due to the external device. The control unit modifies the operation of the ventilator to compensate for the external gas flow rate such that the flow of gas reaching the patient is maintained at a desired level.

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Номер записи: 8

13-03-2014 дата публикации

Bypass device for absorption tank

Номер: US20140069539A1

Автор: Huimin BI

Принадлежит: Beijing Aeonmed Co Ltd

A bypass device for an absorption tank comprises a two-position three-way valve, a micro switch, a control circuit board, and a micro switch actuation mechanism. When an absorption tank needs to be replaced, in the process of rotating a handle, a contact wheel of the micro switch is pressed to send an electrical signal to the control circuit board, and the control circuit board controls a solenoid valve, thereby controlling a gas path of the two-position three-way valve, and bypassing the absorption tank effectively and timely. After the absorption tank is replaced, it is only required to rotate the handle to the original position, so that the entire replacement process involves simple operations and is effective, and the sealing effect of the gas path is desirable.

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Номер записи: 9

20-03-2014 дата публикации

Medical Tubes for Selective Mechanical Ventilation of the Lungs

Номер: US20140076326A1

Автор: Guillermo L. Pol

Принадлежит: Individual

A single lumen endobronchial tube for selective mechanical ventilation of the lungs can include a medical tube having a single lumen with an opening at each of opposed distal and proximal ends of the tube, the opening at the proximal end of the tube being adapted for connection to an external mechanical ventilation device, and the opening at the distal end of the tube being adapted for delivery of a medical gas; a wall extending throughout the tube's entire length having an internal wall surface, an external wall surface and a thickness therebetween, a portion of the wall having an aperture and a shaft adapted to house a mechanism for sealing the aperture; a distal bronchial cuff positioned along the external wall surface and adapted to expand radially outward; and at least a first proximal tracheal cuff positioned along the external wall surface and adapted to expand radially outward.

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Номер записи: 10

01-01-2015 дата публикации

Ventilator flow valve

Номер: US20150000663A1

Автор: Adrian D. DESILVA, Huy Thanh VU, Malcolm R. Williams

Принадлежит: CareFusion 303 Inc

Described herein is a flow control valve for a ventilator that controls gas flow through a patient line in response to a target pressure within the line. The valve controls gas flow by (i) providing both a high frequency signal and a low frequency signal through a coil positioned in a fixed magnetic field, (ii) determining a position of the coil by detecting the high frequency signal, and (iii) controlling a position of the coil by adjusting the low frequency signal based on the determined position and/or velocity of the coil.

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Номер записи: 11

01-01-2015 дата публикации

System and Method for Circuits to Allow CPAP to Provide Zero Pressure

Номер: US20150000666A1

Автор: Rapoport David M.

Принадлежит:

A system comprises a respiratory delivery arrangement adapted to cover at least one respiratory orifice of a patient. The system also comprises a first conduit having a first end and a second end, the second end connected to the respiratory delivery arrangement. A positive pressure is provided to the respiratory orifice via the first conduit and a second conduit having a third end and a fourth end, the fourth end connected to the respiratory delivery arrangement. An exhaled gas is extracted from the respiratory orifice by one or both of a valve configured to redirect flow through the respiratory delivery arrangement and a venturi opening. 120-. (canceled)21. A system , comprising:a respiratory mask adapted to cover at least one respiratory orifice of a patient;a respiratory device configured to deliver a positive pressure gas flow;a first conduit extending from a first end connected to the respiratory device to a second end connected to the respiratory mask, the first conduit including a valve movable between a first position and a second position, the first position being configured to seal an opening in a wall of the first conduit, and the second position being configured to obstruct air flow through the first conduit to the respiratory mask;a second conduit positioned within the first conduit and extending from a third end to a fourth end connected to the respiratory mask, the third end being separate from the first end;a sensing element for detecting data corresponding to a breathing pattern of a patient; anda controller for controlling the positive pressure gas flow based on the data detected by the sensing element and moving the valve to the first position when the positive pressure gas flow is above a predetermined pressure and to the second position when the positive pressure from the respiratory device is below the predetermined pressure.22. The system of claim 21 , wherein the respiratory device is a CPAP blower.23. The system of claim 21 , wherein the ...

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Номер записи: 12

03-01-2019 дата публикации

PRESSURE SUPPORT DEVICE INCLUDING SENSOR TO DETECT NON-SLEEP DISORDERED BREATHING CONDITIONS

Номер: US20190001090A1

Автор: HIGGINS ERIC ALAN

Принадлежит: KONINKLIJKE PHILIPS N.V.

A pressure support device () includes a sensor () structured to gather data on one or more medical parameters associated with a non-sleep disordered breathing medical condition, a processing unit () structured to analyze a risk of the non-sleep disordered breathing medical condition, and an indicator () structured to alert the patient when the risk exceeds a predetermined threshold level. 14. A pressure support device () comprising:a sensor disposed on an enclosure of the pressure support device and being structured to gather data on one or more medical parameters associated with a non-sleep disordered breathing medical condition;a processing unit structured to analyze a risk to the patient of the non-sleep disordered breathing medical condition; andan indicator structured to alert the patient when the risk exceeds a predetermined threshold level.2. The pressure support device of claim 1 , wherein the sensor is a spectroscopy based sensor.3. The pressure support device of claim 2 , wherein the sensor is structured to perform at least one of pulse oximetry claim 2 , spatially offset Raman spectroscopy claim 2 , and surface enhanced spatially offset Raman spectroscopy.4. The pressure support device of claim 1 , wherein the one or more medical parameters includes oxygen saturation in the patient's blood.5. The pressure support device of claim 1 , wherein the one or more medical parameters includes one or more bio-markers.6. The pressure support device of claim 5 , wherein the one or more bio-markers include at least one of cardiac troponin T claim 5 , cardiac troponin I claim 5 , C-reactive protein claim 5 , and myoglobin.7. The pressure support device of claim 1 , wherein the non-sleep disordered breathing medical condition includes at least one of a risk of pending cardiac arrest claim 1 , Bradycardia claim 1 , cardiac arrhythmia claim 1 , arterial stiffness claim 1 , and hypoxaemia.8. The pressure support device of claim 1 , wherein the processing unit is structured ...

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Номер записи: 13

03-01-2019 дата публикации

Systems and methods for concurrent airway stabilization and pulmonary stretch receptor activation

Номер: US20190001092A1

Автор: Eugene Nelson Scarberry, Gregory Delano Matthews, Jonathan Sayer GRASHOW, Michael Thomas KANE

Принадлежит: Koninklijke Philips NV

A method for the concurrent treatment of obstructive sleep apnea and hypertension in a patient, the method comprises: a) providing a flow of treatment to an airway of the patient in accordance with an initial set of flow parameters; b) determining that the patient has achieved stable breathing while receiving the provided flow of treatment gas in accordance with the initial set of parameters; c) increasing the flow parameters; d) providing the flow of treatment gas to the airway of the patient in accordance with the increased flow parameters until it is determined that a predetermined period of time has elapsed; e) further increasing the flow parameters; and f) providing the flow of treatment gas to the airway of the patient in accordance with the further increased flow parameters for a predetermined time.

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Номер записи: 14

20-01-2022 дата публикации

System and Method for Concentrating Gas

Номер: US20220016571A1

Автор: Haneen Y. YEHYA

Принадлежит: Invacare Corp

Embodiments of gas concentrating systems and methods are provided. These systems and methods comprise configuration of hardware and software components to monitor various sensors associated the systems and methods of concentrating gas as described herein. These hardware and software components are further configured to utilize information obtained from sensors throughout the system to perform certain data analysis tasks. Through analysis, the system may, for example, calculate a time to failure for one or more system components, generate alarms to warn a user of pending component failure, modify system settings to improve functionality in differing environmental conditions, modify system operation to conserve energy, and/or determine optimal setting configurations based on sensor feedback.

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Номер записи: 15

11-01-2018 дата публикации

SMART OSCILLATING POSITIVE EXPIRATORY PRESSURE DEVICE

Номер: US20180008790A1

Автор: Costella Stephen, KIRCHNER Alanna, Meyer Adam, Morton Robert, Scarrott Peter

Принадлежит: TRUDELL MEDICAL INTERNATIONAL

An oscillating positive expiratory pressure system including an oscillating positive expiratory pressure device having a chamber, an input component in communication with the chamber, wherein the input component is operative to sense a flow and/or pressure and generate an input signal correlated to the flow or pressure, a processor operative to receive the input signal from the input component and generate an output signal, and an output component operative to receive the output signal, and display an output. 1. An oscillating positive expiratory pressure system comprising:an oscillating positive expiratory pressure device comprising a chamber;an input component in communication with the chamber, wherein the input component is operative to sense a flow and/or pressure and generate an input signal correlated to the flow or pressure;a processor operative to receive the input signal from the input component and generate an output signal; andan output component operative to receive the output signal, and display an output.2. The oscillating positive expiratory pressure system of wherein the input component comprises a sensor.3. The oscillating positive expiratory pressure system of wherein the sensor comprises a flow sensor.4. The oscillating positive expiratory pressure system of wherein the sensor comprises a pressure sensor.5. The oscillating positive expiratory pressure system of wherein the output component comprises a visual output.6. The oscillating positive expiratory pressure system of wherein the output component comprises an audible output.7. The oscillating positive expiratory pressure system of wherein the output component comprises a vibratory output.8. The oscillating positive expiratory pressure system of wherein the output component comprises a graphical user interface.9. The oscillating positive expiratory pressure system of wherein the output component comprises a mobile device in wireless communication with the oscillating positive expiratory ...

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Номер записи: 16

14-01-2021 дата публикации

METHOD FOR INHALATION EFFECT ON THE BODY, AND APPARATUS FOR IMPLEMENTING SAME

Номер: US20210008322A1

Автор: PANIN Aleksandr Andreevich

Принадлежит:

The invention allows for considerably improving the efficiency of inhalation treatment of various diseases and conditions in pulmonology, therapy, intensive treatment, anesthesiology, and sports medicine and is provided with new integral technical solutions while employing the opportunities of microelectronic technology and modern components. A modular structure of the apparatus simplifies its manufacture, ensures the ease of setting it up, and operation in various operating modes. When using the invention, monitoring of the ventilation indicators and patient condition with achieving his high safety level may be ensured; in sports medicine a problem of rehabilitation and training of athletes with the background of extreme loads and increased ventilation indicators is solved. 1. A method of the inhalation effect on the human body consisting in forming a respiratory mixture on the basis of oxygen and/or air and feeding same to a patient with the addition of anesthetic vapors and/or of an aerosol of medicinal agents to the respiratory mixture , characterized by that the respiratory-mixture feeding mode is set with the help of the control module via the rebreathing or non-rebreathing loop through artificial lung ventilation and/or autonomous breathing; wherein the flow and pressure of each gas is monitored by means for automating adjustment and monitoring connected with it by setting the isodromic flow of each gas in accordance with the signals from the control module; wherein the total flow is independently measured and controlled by setting the necessary flow as per signals of the control module; and also inhalation and exhalation lines are connected/disconnected to/from the atmosphere in line with the signals from the control module.2. A method according to claim 1 , wherein the respiratory mixture is generated as a two-component mixture of oxygen with helium claim 1 , xenon claim 1 , or nitrogen oxide.3. A method according to claim 1 , wherein in case of artificial ...

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Номер записи: 17

15-01-2015 дата публикации

Speaking valve system with cuff deflation

Номер: US20150013684A1

Автор: Brian Rosekrans, Emmet Gerard Bolger, John P. Burns, Kamlesh Subhash Sethiya, Sean M. Stephens

Принадлежит: COVIDIEN LP

A tracheal tube system includes a tracheal tube assembly having a cannula configured to be positioned in a patient airway, and a connector coupled to the proximal end of the cannula. The tracheal tube assembly further includes a cuff disposed about the cannula. The tracheal tube system additionally includes a speaking valve comprising means for deflating the cuff, wherein the speaking valve, the connector, and the cannula form a contiguous passageway for delivering air one-way into the patient airway when the speaking valve is disposed onto the end connector.

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Номер записи: 18

17-01-2019 дата публикации

AEROSOL GENERATING SYSTEM WITH PREVENTION OF CONDENSATE LEAKAGE

Номер: US20190014826A1

Автор: Cochand Olivier Yves, Dubief Flavien, Flick Jean-Marc, THORENS Michel

Принадлежит: PHILIP MORRIS PRODUCTS S.A.

There is provided an aerosol generating system for heating a liquid aerosol-forming substrate. The system includes an aerosol-forming chamber, and a leakage preventer for preventing or reducing leakage of liquid aerosol condensate from the aerosol generating system. The leakage preventer may include one or more of: at least one cavity in a wall of the aerosol-forming chamber, for collecting droplets of condensed liquid aerosol-forming substrate; at least one hooked member for collecting droplets of condensed liquid aerosol-forming substrate; an impactor for disrupting airflow in the aerosol-forming chamber so as to collect liquid droplets; and a closure member for substantially sealing the aerosol-forming chamber when the aerosol generating system is not in use. 1. An aerosol generating system for heating a liquid aerosol-forming substrate , the system comprising:an aerosol-forming chamber; andleakage prevention means configured to prevent or reduce leakage of liquid aerosol condensate from the aerosol generating system,wherein the leakage prevention means comprises at least one hooked member configured to collect droplets of liquid condensate formed from the aerosol-forming substrate.2. The aerosol generating system according to claim 1 , wherein the at least one hooked member comprises a recycle path configured to recycle the collected droplets of the liquid condensate formed from the aerosol-forming substrate.3. The aerosol generating system according to claim 1 , wherein the at least one hooked member includes capillary material.4. An aerosol generating system for heating a liquid aerosol-forming substrate claim 1 , the system comprising:an aerosol-forming chamber; andleakage prevention means configured to prevent or reduce leakage of liquid aerosol condensate from the aerosol generating system,wherein the leakage prevention means comprises an impactor configured to disrupt airflow in the aerosol-forming chamber so as to collect droplets of liquid being formed ...

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Номер записи: 19

21-01-2016 дата публикации

SYSTEM, APPARATUS AND METHODS FOR SUPPLYING GASES

Номер: US20160015918A1

Автор: Arrowsmith Mark John, CUMIN David, Kapelevich Vitaly, Kuriger Donald Roy, Nightingale Christopher Earl, Rapoport David M., Wannigama Sujeewa

Принадлежит:

A system, apparatus and methods are provided for supplying gases to a user. The supply includes a sub-therapeutic mode and a pressure support mode for delivering therapy to a user. A flow diversion device or valve switches from a first mode corresponding with the sub-therapeutic mode of the system to a second mode corresponding with the pressure support mode of the system. In the first mode, the valve opens a larger flow path between the interior of the user interface and ambient air than in the second mode. 1. A system for supplying respiratory gases to a user wearing a user interface , the system comprising:a flow generator; anda controller controlling operation of the flow generator, the controller operating the flow generator in a first mode to create a first pressure and the controller operating the flow generator in a second mode to create a second pressure, the system transitioning between the first pressure and the second pressure in synchrony with a breathing state of the user.2. The system of claim 1 , wherein the system transitions from the first mode to the second mode in synchrony with an inhalation of the user.3. The system of claim 1 , wherein the system transitions from the second mode to the first mode in synchrony with an exhalation of the user.4. The system of claim 1 , wherein the system monitors a flow rate while operating in the first mode and the system transitions to the second mode if the flow rate decreases below a lower threshold for a preset period of time.5. The system of claim 1 , wherein the second mode comprises a pressure mode.6. The system of claim 1 , wherein the system transitions from the first mode to the second mode when the user is determined to be sleeping.7. The system of claim 6 , wherein the system determines the user to be sleeping based upon detection of sleep disordered breathing events.8. The system of claim 1 , wherein the system transitions from the second mode to the first mode when a minimum therapeutic pressure is ...

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Номер записи: 20

17-01-2019 дата публикации

SYSTEMS, DEVICES, AND METHODOLOGIES TO PROVIDE PROTECTIVE AND PERSONALIZED VENTILATION

Номер: US20190015614A1

Автор: ALAHMADI Husam Ibrahim

Принадлежит: ROYAL COMMISSION YANBU COLLEGES & INSTITUTES

A method and system for monitoring respiratory waveforms. The method includes acquiring a data set representative of a waveform, comparing one or more segments of the data set with stored abnormal shapes and/or values, determining, using the processing circuitry and based on the comparison, a match level, identifying an abnormality associated with an abnormal shape and/or a value in response to determining that the match level between the data set and the abnormal shape and/or the value is above greater or below a predetermined threshold, and outputting a notification indicating the abnormality to an external device. 1. A method for monitoring respiratory waveforms , the method comprising:acquiring a data set representative of a waveform;comparing, using processing circuitry, one or more segments of the data set with stored abnormal shapes and/or values;determining, using the processing circuitry and based on the comparison, a match level;identifying an abnormality associated with an abnormal shape and/or a value in response to determining that the match level between the data set and the abnormal shape and/or the value is above greater or below a predetermined threshold; andoutputting a notification indicating the abnormality to an external device.2. The method of claim 1 , wherein the step of comparing includes:segmenting the data set into multiple segments associated with phases of a respiratory cycle of a patient.3. The method of claim 1 , wherein the step of comparing includes:determining a first derivative of the one or more segments of the data sets; andcomparing the first derivative of the one or more segments with first derivatives of abnormal shapes and/or values.4. The method of claim 1 , further comprising:storing the match level associated with a waveform category;identifying a trend based on stored match levels; andoutputting an alert when the trend is indicative of a potential abnormality.5. The method of claim 4 , wherein an increase in the match ...

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Номер записи: 21

28-01-2016 дата публикации

Apparatus and Method for Adaptive Closed-loop Control of Oxygen-Hemoglobin Saturation Levels

Номер: US20160022952A1

Автор: Brown Douglas A.

Принадлежит: NAB Medical, Inc.

The present invention is a method, system, and apparatus for providing automated closed-loop control of oxygen-hemoglobin saturation, SO, levels that adapts to the specific, unique, and variable needs of the individual patient in real-time. A method, system, and standalone breathable gas blending apparatus for controlling SOlevels in human patients requiring supplemental oxygen therapy, inclusive of adults, pediatrics, and neonates, are described. 1. A method for adjusting and blending inspired oxygen delivered to a patient in response to a hemoglobin oxygen saturation level measured in the patient , comprising:(a) specifying a target range of hemoglobin oxygen saturation levels through a user interface in communication with a signal and data processor (SDP);(b) specifying an initial inspired oxygen level to be delivered to the patient as determined by the care provider through the user interface;{'sub': p', '2, '(c) measuring a hemoglobin oxygen saturation level of a patient at an SOsensor;'}{'sub': p', '2, '(d) transmitting a signal with a measured hemoglobin oxygen saturation value of the patient from the SOsensor;'}{'sub': p', '2, '(e) receiving the signal from the SOsensor at the SDP;'}(f) comparing the measured hemoglobin oxygen saturation value to at least one preset patient parameter and a target rate of change of the at least one preset patient parameter using the SDP;(g) determining whether the measured hemoglobin oxygen saturation value is within the target range using the SDP;(h) incorporating the difference between the target and measured oxygen hemoglobin values into an adaptive response parameter;(i) computing the hemoglobin oxygen saturation value predicted to occur at the next measurement;(j) comparing the predicted hemoglobin oxygen saturation value to the target value and range, and predicted future values of the patient's hemoglobin saturation level;(k) if it is determined that the predicted hemoglobin oxygen saturation value is outside the ...

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Номер записи: 22

26-01-2017 дата публикации

HIGH FLOW NASAL THERAPY SYSTEM

Номер: US20170021125A1

Автор: MacLoughlin Ronan, Smith Niall

Принадлежит: Stamford Devices Limited

A high flow nasal therapy system () has a gas supply (), a nebulizer (), and a nasal interface (). There are two branches () and a valve () linked with the controller, the branches including a first branch () for delivery of aerosol and a second branch () for delivery of non-aerosolized gas. The controller controls delivery into the branches (), in which flow is unidirectional in the first and second branches, from the gas supply towards the nasal interface. The first branch () includes the nebulizer () and a line configured to store a bolus of aerosol during flow through the second branch (). The valve () comprises a Y-junction between the gas inlet on one side and the branches on the other side. 141-.(canceled)42. A high flow nasal therapy system comprising:a gas supply,a humidifier,a nebulizer,a flow line,a nasal interface or a coupler for connection to an external interface, anda controller configured to control the system in real time to vary the aerosol delivery to the nasal interface on a temporal basis,wherein the controller is configured to provide an increased aerosol delivery during patient inhalation and reduced aerosol delivery during patient exhalation.43. A high flow nasal therapy system as claimed in claim 42 , wherein the system comprises at least two branches and a valve linked with the controller claim 42 , the branches including a first branch for delivery of aerosol and a second branch for delivery of non-aerosolized gas claim 42 , and the controller is configured to control delivery into the branches claim 42 , in which flow is unidirectional in the first and second branches claim 42 , from the gas supply towards the nasal interface.44. A high flow nasal therapy system as claimed in claim 43 , wherein the first branch includes the nebulizer.45. A high flow nasal therapy system as claimed in claim 43 , wherein the first branch includes a line configured to store a bolus of aerosol during flow through the second branch.466. A high flow nasal ...

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Номер записи: 23

25-01-2018 дата публикации

Unit for the micronization and dosage of solid active agents

Номер: US20180021527A1

Автор: Tamas KOKAI

Принадлежит: Individual

The invention relates to a unit for the micronization of a solid active agent, such as a salt, preferably table salt (NaCI), for inhalation, comprising a micronizer driven by a motor. The unit according to the invention is characterised in that micronization is performed by a unit constituted by a closed rotary drum ( 2 ) receiving a solid active agent having the same grain size, preferably 0.1-4 mm, as table salt (NaCI), where the wall surfaces of the micronizer unit are made at least in part of a material having a filtering capacity of 0.1-1000 μm, the material preferably being a mesh-like or microperforated material. A further unit according to the invention is characterised in that the micronizer consists of a rotary block ( 23 ) made of the active agent, a friction block ( 24 ) adapted to be in frictioning relation with the rotary block, and a clamping mechanism ( 25 ) adapted for holding the friction block ( 24 ) in position and for clamping the friction block ( 24 ) to the rotary block ( 23 ), the micronizer being disposed in a closed housing ( 11 ), and the wall surfaces of the housing ( 11 ) being at least in part made of a material having a filtering capacity of 0.1-1000 μm.

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Номер записи: 24

24-01-2019 дата публикации

Combination respiratory therapy and mattress functionality system integrated into a patient bed

Номер: US20190021925A1

Автор: Amodh Gundlur Ramesh, Aye AUNG, Chau Chong YE, Chee Keong Ng, Cong Jiang, David J. BRZENCHEK, Eugene Hong Kheng KUNG, Jack Barney Sing, Nookarajesh Varma SANGADI, Siew Ying Koh, Steven V. McCaig, Tak Wei David TEO, Wei T. Tan, Yue Yun Wang

Принадлежит: Hill Rom Services Pte Ltd

A patient support apparatus includes a frame and a mattress positioned on the frame. A respiratory therapy device is coupled to the frame. The respiratory therapy device includes a blower having an inlet and an outlet, a patient interface, and a valve including a valve member that is rotatable through a first angular displacement in a first direction from a first position to a second position. The outlet of the blower is coupled to the patient interface so that positive pressure is provided to a patient's airway via the patient interface when the valve member is in the first position. The inlet of the blower is coupled to the patient interface so that negative pressure is provided to the patient's airway via the patient interface when the valve member is in the second position.

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Номер записи: 25

28-01-2021 дата публикации

METHOD AND SYSTEMS FOR THE DELIVERY OF OXYGEN ENRICHED GAS

Номер: US20210023323A1

Автор: Nebrigic Dragan, Wilkinson William R.

Принадлежит: Inova Labs, Inc.

Described herein are various embodiments of an oxygen concentrator system and method of delivering oxygen enriched gas to a user. In some embodiments, oxygen concentrator system includes one or more components that improve the efficiency of oxygen enriched gas delivery during operation of the oxygen concentrator system. 1. An oxygen concentrator apparatus comprising:a compression system configured to generate a pressurized stream of ambient air;a canister system comprising at least one canister configured to house a gas separation adsorbent, wherein the gas separation adsorbent is configured to separate at least some nitrogen from the pressurized stream of ambient air to produce oxygen enriched air;one or more valves coupled to the at least one canister; anda controller coupled to and configured to operate the one or more valves,wherein the controller is configured to be set for operation using a remote electronic device.2. The oxygen concentrator apparatus of wherein the remote electronic device is a smart phone or tablet.3. The oxygen concentrator apparatus of wherein the controller is configured to be operated by a user using the remote electronic device.4. The oxygen concentrator apparatus of wherein the controller is configured to accept input from the remote electronic device entered by the user via the remote electronic device.5. The oxygen concentrator apparatus of wherein the one or more valves comprises a supply valve configured to release a bolus of oxygen enriched air.6. The oxygen concentrator apparatus of wherein the controller is configured to adjust a volume of a bolus released by the oxygen concentrator apparatus based on the input.7. The oxygen concentrator apparatus of claim 5 , wherein the input is a selection of a mode of operation of the oxygen concentrator apparatus.8. The oxygen concentrator apparatus of wherein the controller is configured to adjust a volume of a bolus released by the oxygen concentrator apparatus based on the selected mode ...

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Номер записи: 26

28-01-2021 дата публикации

DESIGN AND IMPLEMENTATION OF A LOW-COST BREATHING SUPPORT DEVICE

Номер: US20210023328A9

Автор: Mujeeb-U-Rahman Muhammad, Pasha Saad

Принадлежит:

Respiratory diseases affect a large part of world population, especially in developing world. In this invention, we present a breathing support system to provide life-saving support to such patients. The system automates and regulates the use of a bag valve mask (commonly known as an ambu bag). The system uses mechanical actuators, sensors and a smart feedback control mechanism to automate and regulate the operation of the ambu bag to implement core functions of mechanical ventilation for life-saving applications. The system can also be used to provide better breathing support to newborns (e.g. to prevent hypoxia). The system can be used to save hundreds of thousands of lives in the developing world, in emergencies and during transportation globally. 1. A breathing support device comprising ,a system control unit that receives information from a sensing unit and commands from a user and generates signals to control a mechanical actuation unit;wherein, the mechanical actuation unit moves a gas volume generator to generate the desired breathing pattern;wherein the gas volume generator stores air, oxygen or their mixture for current breathing cycle;wherein the sensing unit comprises of gas flow and pressure sensors to ensure safe and effective operation of the breathing cycle;a power management unit to power the system using either an alternating current source or direct current source;a user-interface unit to get desired breathing parameters from medical practitioners and to display system status.2. The system control unit of claim 1 , further comprising a microcontroller to process signal from different sensors and to generate commands to control mechanical actuation unit.3. The mechanical actuation unit of claim 1 , further comprising a pair of rounded jaws that are moved by an electrical motor through a gear assembly consisting of two gears.4. The mechanical actuation unit of claim 1 , further comprising a pair of rounded jaws that are move to-and-fro by rack-and- ...

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Номер записи: 27

29-01-2015 дата публикации

BI-DIRECTIONAL FLOW GENERATION IN AN IN-EXSUFFLATION SYSTEM

Номер: US20150027444A1

Автор: Col, JR. Kenneth E.

Принадлежит:

A bi-directional gas flow generation system (), the system comprising: (a) a pressure generator () comprising an inlet () and an outlet (), (b) a flow member () comprising an outlet port (), an inlet port (), a respiratory circuit port () and a flow path (), (c) a first valve (), (d) a second valve (), and (e) a processor () configured to selectively control the first valve and the second valve to operate in (i) a first mode in which gas flows from the flow member inlet port () to the respiratory circuit port (), thereby creating a positive pressure at the respiratory circuit port () to insufflate the subject; and (ii) a second mode in which gas flows from the respiratory circuit port () to the flow member outlet port (), thereby facilitating gas flow out from the airway of the subject to exsufflate the subject. 1. A bi-directional gas flow generation system , the system comprising: (1) an inlet configured to receive breathable gas into the pressure generator; and', '(2) an outlet configured to output the pressurized flow of breathable gas from the pressure generator;, '(a) a pressure generator configured to generate a pressurized flow of breathable gas for delivery to the airway of a subject, the pressure generator comprising (1) an outlet port coupled with the pressure generator inlet;', '(2) an inlet port coupled with the pressure generator outlet;', '(3) a respiratory circuit port coupled with the respiratory circuit; and', '(4) a flow path that places the respiratory circuit port in fluid communication with the flow member outlet port and the flow member inlet port;, '(b) a flow member configured to communicate with the pressure generator and a respiratory circuit, the flow member comprising(c) a first valve configured to selectively control flow through the flow path between the respiratory circuit port and the flow member outlet port;(d) a second valve that is mechanically separate and discreet from the first valve, and is configured to selectively control ...

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Номер записи: 28

02-02-2017 дата публикации

Coordinated control of hfcwo and cough assist devices

Номер: US20170027813A1

Автор: Brian C. Becker, Brian E. Byrd, Jason A. Penninger, John A. Bobey, Kristin McFall, Michael A. Roux

Принадлежит: Hill Rom Services Pte Ltd

A respiratory therapy apparatus includes components operable to simultaneously provide a High Frequency Chest Wall Oscillation (HFCWO) therapy and a Mechanical Insufflation/Exsufflation (MIE) therapy to a patient. The respiratory therapy apparatus includes a controller that controls a synchronization of the HFCWO therapy and the MIE therapy to provide respiratory therapy to the patient to effectively clear mucous or induce deep sputum from the lungs of patient.

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Номер записи: 29

02-02-2017 дата публикации

RESPIRATORY THERAPY DEVICES

Номер: US20170028160A1

Автор: Oliver Mark Charles

Принадлежит: SMITHS MEDICAL INTERNATIONAL LIMITED

An expiratory therapy device () has a disc () mounted at right angles in the expiratory gas passage (). The disc () is rotated about an axis at right angles to the passage () by an electric motor () at a speed that is independent of the respiratory pressure exerted by the patient during use. The motor () and its control () are located in a drive unit () that can be removed from the device () for reuse on another device. 19-. (canceled)10. A respiratory therapy device arranged to produce an alternating resistance to respiratory flow through the device , the device including a gas passage , a member movable relative to the gas passage to obstruct or enable gas flow through the passage , characterised in that the device includes an electrical actuator arranged to move the movable member between obstructing and enabling states , the frequency of movement between the two states being substantially independent of respiratory pressure exerted by the patient during use of the device.11. A respiratory therapy device according to claim 10 , characterised in that the electrical actuator is arranged to rotate or angularly displace the movable member relative to the gas passage.12. A respiratory therapy device according to claim 11 , characterised in that the movable member is rotatable about an axis at right angles to the gas passage.13. A respiratory therapy device according to claim 10 , characterised in that the electrical actuator includes an electric motor.14. A respiratory therapy device according to claim 13 , characterised in that the device includes a gear connected between the motor and the movable member.15. A respiratory therapy device according to claim 10 , characterised in that the device includes a sensor responsive to gas flow or pressure in the gas passage.16. A respiratory therapy device according to claim 10 , characterised in that device includes a memory arranged to store information about use of the device.17. A respiratory therapy device according to ...

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Номер записи: 30

17-02-2022 дата публикации

Systems and Methods for Ambulatory Generation of Nitric Oxide

Номер: US20220047837A1

Автор: Apollonio Benjamin, Ferencz Andrew, HALL Gregory W., Heirtzler Frank, Scholz Wolfgang, Zapol David G.

Принадлежит:

Systems and methods are provided for portable and compact nitric oxide (NO) generation that can be embedded into other therapeutic devices or used alone. In some embodiments, an ambulatory NO generation system can be comprised of a controller and disposable cartridge. The cartridge can contain filters and scavengers for preparing the gas used for NO generation and for scrubbing output gases prior to patient inhalation. The system can utilize an oxygen concentrator to increase nitric oxide production and compliment oxygen generator activity as an independent device. The system can also include a high voltage electrode assembly that is easily assembled and installed. Various nitric oxide delivery methods are provided, including the use of a nasal cannula. 126-. (canceled)27. A nitric oxide (NO) system , comprising:a NO source configured to provide a product gas containing nitric oxide; anda controller configured to regulate the amount of NO provided from the NO source using one or more parameters as an input to the controller, the controller being configured to communicate with one or more sensors for detecting timing of an inspiratory event such that the controller is configured to determine timing of a delivery of a pulse of NO delivered to a patient.28. The NO system of claim 27 , wherein the one or more parameters includes information from at least one sensor configured to collect information relating to at least one of the NO source claim 27 , the product gas claim 27 , and a medical gas into which the product gas flows.29. The NO system of claim 27 , wherein the controller is configured to vary one or more of pulse parameters including flow rate claim 27 , duration claim 27 , NO concentration and timing with respect to the inspiratory event.30. The NO system of claim 27 , wherein a duration of the pulse of NO is between tens of milliseconds to an entire duration of the inspiratory event.31. The NO system of claim 27 , wherein the parameters relate to one or more ...

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Номер записи: 31

30-01-2020 дата публикации

INSPIRATORY SYNTHESIS OF NITRIC OXIDE

Номер: US20200030567A1

Автор: Hardin Paul, Hickcox Matthew, Yu Binglan, Zapol Warren M.

Принадлежит:

A system for generating nitric oxide can include an apparatus positioned in a trachea of a mammal, the apparatus in-eluding a respiration sensor for collecting information related to one or more triggering events associated with the trachea, an oxygen sensor for collecting information related to a concentration of oxygen in a gas, and one or more pairs of electrodes for initiating a series of electric arcs to generate nitric oxide, and the system for generating nitric oxide can also include a controller for determining one or more control parameters based on the information collected by the respiration sensor and the oxygen sensor, wherein the series of electric arcs is initiated based on the control parameters determined by the controller. 147-. (canceled)48. An apparatus comprising:a reaction chamber including one or more pairs of electrodes configured to generate a series of electric arcs to synthesize a reactant gas containing at least nitrogen and oxygen to a product gas containing nitric oxide;a sensor configured to measure one or more characteristics of the reactant gas or the product gas; anda controller in communication with the one or more pairs of electrodes and the sensor, the controller being configured to detect a triggering event based on the one or more characteristics of the reactant gas or the product gas and initiate the series of electric arcs a predetermined amount of time ahead of the triggering event to increase a concentration of nitric oxide in the product gas.49. The apparatus of claim 48 , wherein the predetermined amount of time ahead of the triggering event is configured to be adjusted to control the concentration of nitric oxide in the product gas.50. The apparatus of claim 48 , wherein the one or more characteristics include at least one of a direction of flow of the reactant gas claim 48 , a tidal volume of a flow of the reactant gas claim 48 , a timing of a flow of the reactant gas claim 48 , a change in temperature of a flow of the ...

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Номер записи: 32

11-02-2016 дата публикации

SYSTEM FOR DELIVERY OF GASEOUS IMAGING CONTRAST AGENTS AND METHODS FOR USING SAME

Номер: US20160038727A1

Автор: Emami Kiarash, Hamedani Hooman, ISHII MASARU, Kadlecek Stephen J., Rizi Rahim R.

Принадлежит: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA

Systems and methods for delivering a gaseous contrast agent to the lungs of a subject. 1. A system for delivery of a gaseous contrast agent to the lungs of a subject , the system comprising:a first gas container defining an interior volume configured to contain said gaseous contrast agent, said first gas container having an outlet in fluid communication with said interior volume;a second gas container defining an interior volume configured to contain oxygen gas, said second gas container having an outlet in fluid communication with said interior volume;a flow meter having an inlet and an outlet, said inlet of said flow meter being in fluid communication with said outlets of said first and second gas containers such that said flow meter receives a mixture of said gaseous contrast agent and said oxygen gas, said flow meter being configured to produce a first flow signal indicative of the flow rate of said gaseous contrast agent within the flow meter and a second flow signal indicative of the flow rate of said oxygen gas within the flow meter;a delivery tube defining a central bore and having a first end and an opposed second end, said second end of said delivery tube being configured for coupling to the mouth of said subject;a first flow control valve positioned between said outlet of said flow meter and said first end of said delivery tube, said flow control valve being positioned in fluid communication with said outlet of said flow meter and said first end of said delivery tube, said flow control valve being configured to provide selective fluid communication between said outlet of said flow meter and said first end of said delivery tube;an imaging device; anda processor, said processor being positioned in operative communication with said flow meter, said flow control valve, and said imaging device, wherein said processor is configured to receive said first and second flow signals, wherein said processor is configured to selectively open said flow control valve in ...

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Номер записи: 33

09-02-2017 дата публикации

GAS HUMIDIFICATION ARRANGEMENT

Номер: US20170035985A1

Автор: DONNELLY Jess Edward, Newland Anthony James, Sharp Timothy James Beresford, VAN SCHALKWYK Andre

Принадлежит:

A humidification arrangement can be configured to have multiple compartments with each compartment having at least one moisture source and at least one heater. The compartments can be thermally isolated and can be controlled such that the moisture output of both the first and second compartments is set to a function of the same set of input signals. 1. A humidification arrangement comprising:a gas passageway extending between a first location and a second location, the gas passageway comprising a first compartment and a second compartment, each compartment comprising a moisture source configured to add moisture to gases in the gas passageway, each moisture source having an adjustable moisture output;a sensor adapted to sense one or more characteristic or substance of a gases flow; anda controller adapted to use data from the sensor to control the adjustable moisture output of at least one of the first compartment and the second compartment to deliver a target gas characteristic or substance, wherein the controller is adapted to control an actuator that varies an exposed surface area of a reservoir.2. The humidification arrangement of claim 1 , wherein the moisture source of the first compartment and the moisture source of the second compartment are separate from each other.3. The humidification arrangement of claim 1 , wherein the moisture source of the first compartment and the moisture source of the second compartment are in fluid communication with each other.4. The humidification arrangement of claim 1 , comprising a heater configured to heat at least one of the first compartment and the second compartment.5. The humidification arrangement of claim 4 , wherein the heater is configured to heat the first compartment and the second compartment.6. The humidification arrangement of claim 1 , wherein the first compartment and the second compartment are integrated into a single housing.7. The humidification arrangement of claim 6 , wherein the first compartment and the ...

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Номер записи: 34

08-02-2018 дата публикации

SYSTEM, APPARATUS AND METHODS FOR SUPPLYING GASES

Номер: US20180036499A1

Автор: Arrowsmith Mark John, CUMIN David, Kapelevich Vitaly, Kuriger Donald Roy, Nightingale Christopher Earl, Rapoport David M., Wannigama Sujeewa

Принадлежит:

A system, apparatus and methods are provided for supplying gases to a user. The supply includes a sub-therapeutic mode and a pressure support mode for delivering therapy to a user. A flow diversion device or valve switches from a first mode corresponding with the sub-therapeutic mode of the system to a second mode corresponding with the pressure support mode of the system. In the first mode, the valve opens a larger flow path between the interior of the user interface and ambient air than in the second mode. 131-. (canceled)32. A system configured to supply respiratory gases to a user wearing a user interface , the system comprising:a flow generator; and operate the flow generator in a first mode to create a first pressure that is below a therapeutic pressure range;', 'operate the flow generator in a second mode to create a second pressure that is within the therapeutic pressure range; and', 'transition between the first pressure and the second pressure in synchrony with an inhalation of the user., 'a controller controlling operation of the flow generator, the controller configured to33. The system of claim 32 , further comprising a flow diverter including a port to ambient claim 32 , the port positioned between the user interface and the flow generator.34. The system of claim 34 , further comprising a valve configured to assume a first position claim 34 , where the valve substantially opens the port claim 34 , and a second position where the valve substantially closes the port claim 34 , and wherein the valve is configured to transition from the first position to the second position based on a transition from the first mode to the second mode.35. The system of claim 32 , wherein the controller is further configured to transition from the second mode to the first mode in synchrony with an exhalation of the user.36. The system of claim 32 , wherein the controller is further configured to monitor a flow rate while operating in the first mode claim 32 , determine when ...

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Номер записи: 35

12-02-2015 дата публикации

VAPORIZER ARRANGEMENT FOR A BREATHING APPARATUS

Номер: US20150040900A1

Автор: Larsson Åke, Loncar Mario, TROILI Carl-Erik

Принадлежит: Maquet Critical Care AB

A vaporizer arrangement for a breathing apparatus serves the double purpose of vaporizer and pressurized supply of vapor-containing gas for direct delivery to a patient. The vaporizer arrangement has at least a first gas inlet channel for conveying a flow of a carrier gas into a vaporization chamber, a vaporizer for vaporizing a liquid into the carrier gas in the vaporization chamber, and a gas outlet channel for conveying a flow of vapor-containing carrier gas out of the vaporization chamber and toward the patient. The vaporizer arrangement further has a gas flow regulator that maintains the carrier gas within the vaporization chamber at an overpressure, and that controls the flow of vapor-containing carrier gas out of the vaporization chamber in a variable manner. 11. A vaporizer arrangement for a breathing apparatus () , comprising:{'b': '9', 'at least a first gas inlet channel that conveys a flow of a carrier gas into a vaporization chamber ();'}a vaporizer that vaporizes a liquid into the carrier gas in the vaporization chamber;a gas outlet channel that conveys a flow of vapor-containing carrier gas out of the vaporization chamber and toward a patient; anda gas flow regulator configured to maintain the carrier gas within the vaporization chamber at an overpressure, and to control a flow of said vapor-containing carrier gas out of the vaporization chamber in a variable manner.2. A vaporizer arrangement according to claim 1 , wherein the gas flow regulator is configured to control the flow of vapor-containing carrier gas out of the vaporization chamber based on at least one parameter indicative of the respiratory phase of the patient.3. A vaporizer arrangement according to claim 1 , wherein the gas low regulator further is configured to control the flow of carrier gas into the vaporization chamber in a variable manner.4. A vaporizer arrangement according to claim 3 , wherein the gas flow regulator is configured to control the flow of carrier gas into the ...

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Номер записи: 36

12-02-2015 дата публикации

SYSTEMS AND METHODS FOR PROVIDING VENTILATION

Номер: US20150040905A1

Автор: Kulstad Erik

Принадлежит:

Systems and methods for providing ventilation assistance or control are disclosed. Systems and methods for providing randomized ventilation are disclosed. Methods for operating a ventilation system while preventing or reducing the occurrence of ventilator associated lung injury are disclosed. Devices, systems, and methods for providing passive ventilation are disclosed. 1. A method of operating a ventilation system , the method comprising:(a) causing a processor to execute a plurality of instructions stored in a memory device to operate with a flow regulator to deliver a volume of gas to a lung of a patient according to at least one setting for one or more ventilator parameters;(b) causing the processor to execute the plurality of instructions to operate with an operator interface to enable an operator to set the one or more ventilator settings;(c) causing the processor to execute the plurality of instructions to operate with the operator interface to enable the operator to set at least one criterion for a physiological parameter;(d) causing the processor to execute the plurality of instructions to operate with an input device to detect the physiological parameter; (i) if the criterion is satisfied, at least one of the settings is reduced at a default rate, and', '(ii) if the criterion is not satisfied, at least one of the settings is varied randomly., '(e) causing the processor to execute the plurality of instructions to vary at least one of the settings, wherein2. The method of claim 1 , wherein the flow regulator includes one or more valves.3. The method of claim 1 , wherein the one or more ventilator parameters are selected from the group consisting of: (i) tidal volume; (ii) respiratory rate; (iii) inspiratory flow rate; (iv) inspiratory-to-expiratory time ratio (I:E); and positive end expiratory pressure.4. The method of claim 1 , wherein the input device is a pressure transducer.5. The method of claim 1 , wherein the physiological parameter is esophageal ...

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Номер записи: 37

24-02-2022 дата публикации

Ventilator for high-flow oxygen therapy

Номер: US20220054792A1

Автор: Andreas Neumann, Frank Ralfs

Принадлежит: Draegerwerk AG and Co KGaA

A ventilator (100) ventilates a patient (102) by a high-flow oxygen therapy via a tube system (104). The ventilator has at least one sensor element (110), at least one actuatable inhalation valve or exhalation valve (120) and a control unit (130). The sensor element is arranged and configured to determine and to output a measured variable (112) within the tube system. The measured variable indicates a gas flow within the tube system. The actuatable inhalation valve or exhalation valve is arranged and configured to make possible a flow of a breathing gas from a ventilation circuit (107) of the ventilator. The control unit regulates a ventilation pressure provided by the ventilator via the at least one sensor element and the at least one inhalation valve or exhalation valve such that a predefined maximum pressure is not exceeded in a predefined area (140) of the tube system.

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Номер записи: 38

07-02-2019 дата публикации

BREATHABLE GAS INLET CONTROL DEVICE FOR RESPIRATORY TREATMENT APPARATUS

Номер: US20190038866A1

Автор: Brambilla Enrico, Chalvignac Philippe Auguste, Creusot David, YEE Arthur Kin-Wai

Принадлежит: ResMed Paris SAS

A breathable gas inlet control device permits flow regulation at the inlet of a flow generator for a respiratory treatment apparatus such as a ventilator or continuous positive airway pressure device. The device may implement a variable inlet aperture size based on flow conditions. In one embodiment, an inlet flow seal opens or closes the inlet to a blower in accordance with changes in pressure within a seal activation chamber near the seal. The seal may be formed by a flexible membrane. A controller selectively changes the pressure of the seal activation chamber by controlling a set of one or more flow control valves to selectively stop forward flow, prevent back flow or lock open the seal to permit either back flow or forward flow. The controller may set the flow control valves as a function of detected respiratory conditions based on data from pressure and/or flow sensors. 1a gas inlet having a variable aperture that is adjustable between closed and fully open;a gas outlet; anda flow generator adapted to provide a supply of pressurized breathable gas from the gas inlet and to the gas outlet; anda controller to control the level of pressure generated by the flow generator,wherein the aperture varies in opening size as a function of a level of flow of breathable gas provided adjacent to the gas outlet.. A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, comprising: This application is a continuation of U.S. patent application Ser. No. 15/444,526 filed on Feb. 28, 2017, which is a continuation of U.S. patent application Ser. No. 13/635,935 filed on Sep. 19, 2012 which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/AU2011/000341 filed Mar. 25, 2011, published in English, which claims priority from U.S. Patent Provisional Application No. 61/317,483 filed Mar. 25, 2010, all of which are incorporated herein by reference.The present technology relates to valves for controlling gas flow in ...

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Номер записи: 39

06-02-2020 дата публикации

Breathing Assistance Device with Nebulizer

Номер: US20200038618A1

Автор: Jeffrey Bruce Ratner

Принадлежит: Mercury Enterprises Inc

A breathing assistance device includes a patient breathing tube in fluid communication with a face mask. A source of air connected to a first port formed integrally with a valve in fluid communication with the breathing tube and a nebulizer is connected to a second port formed integrally with the valve. A reservoir holding medicine in liquid form is connected to the nebulizer. A valve actuator has an open configuration where gaseous fluid and aerosolized medicine from the nebulizer flow to the patient through the breathing tube and a closed configuration where only gaseous fluid is delivered. Medication can, therefore, be selectively administered to the patient by manipulating the valve actuator. The valve enables the patient to exhale against pressure slightly above atmospheric pressure. Filter device is secured to the valve body and is configured to filter contaminates from a patients exhaled breath prior to being exhausted into the environment.

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Номер записи: 40

18-02-2016 дата публикации

Apparatus and method for maintaining airway patency and pressure support ventilation

Номер: US20160045705A1

Автор: Richard J. Arnott

Принадлежит: Individual

An assembly for modifying airflow into a nasopharyngeal airway or trachea of a patient. A valve assembly is adapted to attach to an airflow generator, wherein the airflow generator is a continuous blower of a type producing a constant head of pressurized air. One or more drive gears are attached to and powered by a servo motor. A valve seal within the feed tube is connected to and operable by the drive gears, the valve seal adapted to cycle within the feed tube across the outlet. A controller circuit is connected to the servo motor for operating the servo motor incrementally, wherein pressurized air from said airflow generator continuously enters said feed tube from said inlet but travels to said patient only when said servo motor causes said valve seal to move such that said pressurized air is converted into a single, repeatable burst.

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Номер записи: 41

10-03-2022 дата публикации

ENHANCED PERFORMANCE VERIFICATION PORT FOR THERAPEUTIC GAS DELIVERY

Номер: US20220072247A1

Автор: Acker Jaron M., Falligant John C., Milsap Jeff, Roehl Robin, Schmidt Jeffrey, Tolmie Craig R.

Принадлежит:

Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display. 1. A therapeutic gas delivery system for confirming the proper functioning of gas delivery and injection module operation , comprising:an inlet port;a low pressure outlet port in fluid communication with the inlet port;an injection module operable to be received at the low pressure outlet port;a low pressure gas supply operable to provide a flow of breathing gas at the inlet port, wherein the flow of breathing gas is at a breathing gas flow rate;a low pressure delivery flow sensor and a low pressure confirmatory flow sensor operable to measure the breathing gas flow rate from the low pressure gas supply, wherein the low pressure delivery flow sensor and the low pressure confirmatory flow sensor are in fluid communication with the inlet port and the low pressure outlet port;an injector module ...

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Номер записи: 42

10-03-2022 дата публикации

REMOVABLE AND/OR REPLACEABLE HUMIDIFIER

Номер: US20220072261A1

Автор: VIRR Alexander

Принадлежит:

Humidifier apparatus for a respiratory apparatus includes a housing providing a gas flow path, a heater apparatus, and a water supply distribution member configured and arranged to deliver water vapour to the gas flow path. The water distribution member is provided to the housing and in thermal communication with the heater apparatus. 1. Humidifier apparatus for a respiratory apparatus , comprising:a housing providing a gas flow path;a heater apparatus; anda water supply distribution member configured and arranged to deliver water vapour to the gas flow path, wherein the water distribution member is provided to the housing and in thermal communication with the heater apparatus.2. Humidifier apparatus according to claim 1 , where the water distribution member is adapted to be a removable and replaceable fitting to the housing.3. Humidifier apparatus according to claim 1 , wherein the water distribution member comprises an envelope formed by a first compartment wall and a second compartment wall joined together claim 1 , and a water inlet into the envelope.4. Humidifier apparatus according to claim 3 , wherein the envelope defines a thin water layer having a thickness of less than about 10 mm.5. Humidifier apparatus according to claim 3 , wherein the envelope defines a thin water layer having a thickness of less than about 5 mm.6. Humidifier apparatus according to claim 3 , wherein the envelope has a volume of less than about 150 ml.7. Humidifier apparatus according to claim 3 , wherein the envelope has a volume of less than about 100 ml.8. Humidifier apparatus according to claim 3 , wherein the water distribution member is adapted for production of water vapour within the envelope.9. Humidifier apparatus according to claim 3 , wherein the first compartment wall is at least in part a semi-permeable membrane structured to allow water vapour to pass therethrough into the gas flow path.10. Humidifier apparatus according to claim 9 , wherein the semi-permeable membrane ...

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Номер записи: 43

05-03-2015 дата публикации

Apparatus and method for maintaining airway patency and pressure support ventilation

Номер: US20150059750A1

Автор: Arnott Richard J.

Принадлежит:

An assembly for modifying patient airflow into a nasopharyngeal airway or trachea. A valve assembly having a valve seal is adapted to attach to an airflow generator. The valve seal is connected to and operable by a motor means. A controller circuit is connected to the motor means for operating the motor means incrementally such that pressurized air from the airflow generator continuously enters the interior feed tube from the inlet but passes out of the outlet only when the motor means causes the valve seal to move in relation to the exit tube to at least partially unblock the outlet such that the pressurized air is converted into a single, repeatable burst exiting the outlet. In one embodiment, instead of a motor, the valve assembly can include a shaft. A butterfly valve seal is attached to the shaft. A nickel titanium wire is in conductive communication with the shaft. 1. An assembly for modifying airflow into a nasopharyngeal airway or trachea of a patient , comprising: a motor means signaled by said airflow disposed at one of said ends and underlying said inlet;', 'a valve seal connected to and operable by said motor means, said valve seal underlying said outlet and adapted to cycle within said interior feed tube between said motor means and across said outlet;, 'a valve assembly adapted to attach to an airflow generator, wherein said airflow generator is a continuous blower of a type producing a constant head of pressurized air, said valve assembly having two ends, an inlet and an outlet defined between each of said ends, and an interior feed tube, said valve assembly further comprisinga controller circuit connecting to said motor means for operating said motor means incrementally; and,wherein upon activation of both said airflow generator and said controller circuit, pressurized air from said airflow generator continuously enters said interior feed tube from said inlet but passes out of said outlet only when said motor means causes said valve seal to move in ...

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Номер записи: 44

05-03-2015 дата публикации

FLOW TRIGGERED PULSED OXYGEN DELIVERY FOR MEDICAL APPLICATIONS

Номер: US20150059764A1

Автор: METELITS Joel B.

Принадлежит:

A fluid delivery system provides fluid, such as supplementary oxygen, to a patient in response to inhalation. The fluid delivery system includes a valve assembly that is triggered by sensing nasal flow. The system includes a sensor configured to detect flow either directly through the nose and to detect any “flow leakage” through a patient's nasal cavity while mouth breathing. A method for conserved delivery of fluid to a patient that includes sensing such nasal flow is also provided. 1. A fluid delivery system comprising:at least one source of fluid;at least one valve assembly coupled to said at least one source of fluid, wherein the at least one valve assembly is configured to allow flow of fluid from the at least one source during patient inspiration;an outlet end comprising a nasal or oro-nasal cannula in fluid communication with the at least one valve assembly; anda nasal flow sensor for triggering fluid delivery in response to patient inspiration.2. The fluid delivery system of claim 1 , further comprising a power source configured to operate the at least one valve assembly.3. The fluid delivery system of claim 1 , wherein the nasal flow sensor is located in or adjacent the nasal cannula or oro-nasal cannula claim 1 , or is located adjacent the at least one source of fluid claim 1 , or is located in air tubing between the nasal cannula or oro-nasal cannula and the at least one source of fluid.4. The fluid delivery system of claim 1 , wherein the oro-nasal cannula comprises split nasal cannuli and an oral cannula coupled to each other.5. The fluid delivery system of claim 4 , wherein the split nasal cannuli and the oral cannula are coupled to each other by an adjustable length sleeve.6. The fluid delivery system of claim 4 , wherein the split nasal cannuli and the oral cannula are coupled to each other by detachable tubing.7. The fluid delivery system of claim 4 , wherein the split nasal cannuli and the oral cannula are in fluid communication with a shared ...

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Номер записи: 45

21-02-2019 дата публикации

ACTIVE EXHALATION VALVE

Номер: US20190054268A1

Автор: DeVries Douglas F., GAW Shan E.

Принадлежит:

An active exhalation valve for use with a ventilator to control flow of patient exhaled gases. The valve includes a patient circuit connection port, a patient connection port, an exhaled gas port, a pilot pressure port, and a valve seat. The valve further has a movable poppet with inner and outer bellows members and a bellows poppet face. An activation pressure applied to the pilot pressure port extends the bellows members to move the poppet face into engagement with the valve seat and restrict flow of patient exhaled gases to the exhaled gas port, and the reduction of the activation pressure allows the bellows members to move the poppet face away from the valve seat and out of engagement with the valve seat to permit flow of patient exhaled gases to the exhaled gas port, thereby controlling the flow of patient exhaled gases from the valve. 1. An active exhalation valve for use with a patient connection and a ventilator having a pressure source usable to control operation of the valve , comprising:a valve body having an internal body chamber with gasses therein having a body chamber pressure;a first body port in fluid communication with the body chamber and configured for fluid communication with the patient connection;a second body port in fluid communication with the body chamber and configured for fluid communication with the ventilator;a passageway in fluid communication with the body chamber and with ambient air exterior of the valve body; and (a) an outer member,', '(b) an inner member positioned within the outer member,', '(c) an internal seal chamber located between the outer and inner members and in fluid communication with the pressure source, and', '(d) a seal member extending between the inner and outer members and movable therewith, the seal member having a first surface portion inside the seal chamber configured for movement of the valve seal toward the closed position in response to pressure applied thereto by the pressure source and a second surface ...

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Номер записи: 46

02-03-2017 дата публикации

Reperfusion Protection in Resuscitation

Номер: US20170056612A1

Автор: FREEMAN Gary A.

Принадлежит:

An apparatus and method for resuscitating a patient suffering from cardiac arrest or another condition in which normal circulation has been interrupted. A ventilator is used for delivering a gas mixture to the patient. The ventilator is configured to adjust the partial pressure of CO2 to one or more partial pressures high enough to slow expiration of CO2 from the patient's lungs and thereby maintain a reduced pH in the patient's tissues for a period of time following return of spontaneous circulation. 1. A system for assisting resuscitation of a patient , the system comprising: at least one processor and associated memory , the at least one processor configured to:{'sub': '2', 'receive one or more input signals indicative of a concentration of COin a tissue of the patient,'}{'sub': 2', '2, 'process the one or more input signals indicative of the concentration of COof the tissue of the patient to provide a measurement of the concentration of COin the tissue of the patient,'}{'sub': 2', '2, 'determine a COpartial pressure adjustment, based at least in part on the measurement of the concentration of COin the tissue of the patient, to impact a pH of the tissue of the patient during a period of time following return of spontaneous circulation (ROSC); and'}{'sub': '2', 'generate an instruction indicative of the determined COpartial pressure adjustment.'}28.-. (canceled)9. The system of claim 1 , wherein the at least one processor is communicatively coupled to at least one sensor configured to measure COconcentration in an airway of the patient and further wherein the at least one processor is further configured to receive the one or more input signals from the at least one sensor.10. The system of claim 9 , wherein the at least one processor is further configured to receive claim 9 , from the at least one sensor claim 9 , at least two measurements of the COconcentration in the airway of the patient and to determine whether ROSC has occurred based on a comparison of the at ...

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Номер записи: 47

05-03-2015 дата публикации

Nitric Oxide Upper Airway Delivery system and Method

Номер: US20150065904A1

Автор: Han Steve, Stenzler Alex

Принадлежит: 12th Man Technologies, Inc.

The present invention provides a system and method for delivery of nitric oxide to the upper respiratory tract without resulting in nitric oxide delivery to the lungs. In certain embodiments, the invention comprises the use of a flow sensor to sense the exhalation of the subject, and delivering a nitric oxide containing gas upon sensed exhalation. 1. A nasal delivery system for delivering nitric oxide-containing gas to an upper respiratory tract of a subject , comprising:a source of nitric oxide-containing gas;a nasal interface adapted to provide fluid communication between the source of nitric oxide-containing gas and the nostrils of the subject;a flow-control valve for controlling the flow of the nitric oxide-containing gas from the source to the subject; anda flow sensor positioned near the oral cavity of the subject.2. The system of claim 1 , wherein the flow sensor is operable to sense the exhalation of the subject.3. The system of claim 1 , wherein the flow sensor comprises a sensor selected from the group consisting of a microphone claim 1 , pressure sensor claim 1 , mass flow sensors claim 1 , Kapton flow sensors claim 1 , and a thermistor.4. The system of claim 1 , wherein the flow sensor is operably connected to the nasal interface.5. The system of claim 1 , wherein the nasal interface comprises a nosepiece operable to be inserted into one or both of the nostrils of the subject.6. The system of claim 1 , wherein the system comprises a control unit with logic such that flow control valve is opened when exhalation is sensed by the flow sensor.7. The system of claim 1 , further comprising a gas blender.8. The system of claim 1 , further comprising a NO analyzer.9. The system of claim 1 , wherein the system is operable to deliver about 1 liter per minute of the nitric oxide-containing gas.10. The system of claim 1 , wherein the system is operable to deliver a volume of nitric oxide containing gas claim 1 , wherein the volume is between 1-1000 mL.11. A method ...

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Номер записи: 48

27-02-2020 дата публикации

Apparatus and method for humidity conditioning sample gas of a patient breathing circuit affiliated with a ventilator and/or nitric oxide delivery system

Номер: US20200061328A1

Автор: John P. Stanton, John V. Berndt

Принадлежит: Mallinckrodt Hospital Products IP Unlimited Co

A therapeutic gas is administered to a patient. A sample gas is drawn from the therapeutic gas supply, and passed through a water-permeable tubular membrane. Concurrently, a section of the water permeable tubular membrane is maintained as a ventilated water permeable tubular membrane, by exposing outer surfaces of the ventilated water permeable tubular membrane to an ambient air flow. The ambient air flow may in some examples be moved over the tubular membrane via forced air such as for example via a fan associated with a housing surrounding the tubular membrane.

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Номер записи: 49

19-03-2015 дата публикации

Nitrous Oxide Anesthetic Administration System

Номер: US20150075525A1

Автор: David J. Ahearn, Edward Carey

Принадлежит: Individual

A system and method for administering nitrous oxide to a patient has a fluid control system that allows a user to monitor and control the supply of gases to a patient. A shutoff valve allows a user to selectively activate the fluid control system. Oxygen flow is adjusted by a flow controlling valve. A differential pressure regulator allows flow of nitrous oxide in response to sufficient oxygen flow. Flow of the nitrous oxide is further controlled by a ratio controlling valve. A display shows the flow of the gases through the fluid control system. A flush valve allows a user to flush the output with oxygen. A flow indicator light may be included. An optional output selector allows the user to direct the flow to one of various output ports. An optional safety scavenge valve prevents operation of the fluid control system when there is insufficient scavenge vacuum pressure.

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Номер записи: 50

24-03-2022 дата публикации

RESPIRATORY GAS HUMIDIFIER

Номер: US20220088341A1

Автор: ALAMI Nordyn, Partington Andrew John, YATSEVICH Igor Olegovich

Принадлежит:

A gas humidifier can have a gas channel comprising an inlet and an outlet. A portion of the gas channel can have a region having a reduction in cross-sectional area relative to the portions of the gas channel outside of the region. A water conduit can extend from the region to a water reservoir. A heating element can heat water entering the region from the water conduit. Water vaporized using the heating element can join the flow of gases passing through the gas channel in use. 1. (canceled)2. A gas humidifier , comprising:a reservoir;a lid for engaging the reservoir, and{'claim-text': ['a flow adjusting region comprising a first portion with a decreasing cross-section and a second portion with an increasing cross-section,', 'a first aperture,', 'a fluid conduit extending from the first aperture and into the reservoir, wherein the fluid conduit is configured to allow fluid to be drawn from the reservoir and into the gas channel,', 'a second aperture configured to collect excess fluid in the gas channel, the second aperture positioned downstream of the fluid adjusting region,', 'a heater positioned on the second portion of the flow adjusting region, and', 'wherein the gas channel has a rectangular cross-section.'], '#text': 'a gas channel positioned within the lid, the gas channel extending between an inlet and an outlet, the gas channel comprising:'}3. The gas humidifier of claim 2 , further comprising a recovery conduit that fluidly connects the second aperture with the reservoir to allow excess fluid to flow from the second aperture into the reservoir.4. A gas humidifier claim 2 , comprising:a reservoir; and{'claim-text': ['a flow adjusting region comprising a first portion with a decreasing cross-section and a second portion with an increasing cross-section, wherein the second portion comprises a substantially flat bottom surface,', 'a first aperture, and', 'a fluid conduit extending from the first aperture and into the reservoir, wherein the fluid conduit is ...

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Номер записи: 51

07-03-2019 дата публикации

INSPIRATORY SYNTHESIS OF NITRIC OXIDE

Номер: US20190070383A1

Автор: Hardin Paul, Hickcox Matthew, Yu Binglan, Zapol Warren M.

Принадлежит:

A system for generating nitric oxide can include an apparatus positioned in a trachea of a mammal, the apparatus in eluding a respiration sensor for collecting information related to one or more triggering events associated with the trachea, an oxygen sensor for collecting information related to a concentration of oxygen in a gas, and one or more pairs of electrodes for initiating a series of electric arcs to generate nitric oxide, and the system for generating nitric oxide can also include a controller for determining one or more control parameters based on the information collected by the respiration sensor and the oxygen sensor, wherein the series of electric arcs is initiated based on the control parameters determined by the controller. 147.-. (canceled)48. An apparatus comprising:a reaction chamber including one or more pairs of electrodes configured to generate a series of electric arcs to synthesize a reactant gas containing at least nitrogen and oxygen to a product gas containing nitric oxide, the reaction chamber being at least partially positioned within a tube into which the product gas is delivered;a sensor configured to measure one or more characteristics of a flow of a gas in the tube; and{'sub': '2', 'a controller in communication with the one or more pairs of electrodes and the sensor, the controller being configured to initiate the series of electric arcs based on the one or more characteristics of the flow of the gas in the tube to minimize a concentration of NOin the product gas.'}49. The apparatus of claim 48 , wherein the one or more pairs of electrodes include a noble metal.50. The apparatus of claim 48 , wherein the one or more pairs of electrodes include iridium.51. The apparatus of claim 48 , wherein the one or more characteristics include at least one of a direction of the flow of the gas claim 48 , a tidal volume of the flow of the gas claim 48 , a timing of the flow of the gas claim 48 , a change in temperature of the flow of the gas ...

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Номер записи: 52

05-03-2020 дата публикации

A HUMIDIFICATION DEVICE AND SYSTEM

Номер: US20200069904A1

Автор: BOTHMA Johannes Nicolaas, BUDHIRAJA Nimansha, DARBY Adam John, Hamilton Mark Samuel, Kuriger Donald Roy, YATSEVICH Igor Olegovich

Принадлежит:

The invention relates to a non-heated humidification device comprising a wick; a chamber for holding water in contact with the wick; and a gas inlet to the chamber, wherein the chamber and wick are configured to humidify gas passing through or over the wick at ambient conditions. The device may be modular and attachable to a flow generator. The device may comprise dual gas circuits and a control system for controlling the gas flow through the gas circuits in order to control the humidity of the gas output. 1. A humidification device for use in CPAP , wherein the device comprises:a wick chamber for supporting a wick and comprising at least a gas inlet;a non-heated fluid chamber for holding fluid to be placed in contact with the wick;wherein the fluid chamber is configured to allow fluid from the fluid chamber to wet the wick to humidify gas passing through or over the wick.2. The humidification device of claim 1 , wherein the wick chamber is held within the fluid chamber and wherein the wick chamber comprises a foraminous structure for holding the wick within the wick chamber and diffusing gas flow through or over the wick.3. The humidification device of claim 1 , wherein the wick chamber comprises a baffle wall comprising diffusion apertures of varying sizes to diffuse gas through or over the wick.4. The humidification device of claim 1 , wherein the gas inlet is located on the side of the wick chamber to direct gas through the wick from the side of the wick.5. The humidification device of claim 1 , wherein the gas inlet enters the wick chamber at a transition region comprising a curved radius between the gas inlet and the chamber at a transition region comprising a curved radius between the gas inlet and an external wall of the wick chamber to encourage gas entering the wick chamber to diffuse by exploiting a Coanda effect.6. The humidification device of claim 1 , and further comprising a blade diffuser to diffuse gas from the gas inlet through or over the wick.7. ...

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Номер записи: 53

18-03-2021 дата публикации

Liquid ventilator and method to induce tidal liquid ventilation and/or hyporthermia

Номер: US20210077759A1

Автор: Jonathan Vandamme, Julien MOUSSEAU, Mathieu NADEAU, Matthias KOHLHAUER, Philippe Micheau, Renaud Tissier

Принадлежит: Ecole Nationale Veterinaire dAlfort, Institut National de la Sante et de la Recherche Medicale INSERM, Universite Paris Est Creteil Paris 12

Liquid ventilator and methods integrating the concept of total liquid ventilation (TLV) using liquid volumes below functional residual capacity (FRC) of mammal's lungs are disclosed. Beyond the automatization of the whole process, the technology has been up-scaled to confirm that TLV at residual volumes below FRC can provide a safe procedure while enabling the full potential of TLV in a mammal such as humans or adult-sized animals. Such tidal liquid ventilation strongly differs from the previously known TLV approach, opening promising perspectives for a safer clinical translation. Also disclosed are apparatus and method for safe and fast induction of hypothermia during liquid ventilation of a mammal.

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Номер записи: 54

31-03-2022 дата публикации

GAS HUMIDIFICATION ARRANGEMENT

Номер: US20220096782A1

Автор: DONNELLY Jess Edward, Newland Anthony James, Sharp Timothy James Beresford, VAN SCHALKWYK Andre

Принадлежит:

A humidification arrangement can be configured to have multiple compartments with each compartment having at least one moisture source and at least one heater. The compartments can be thermally isolated and can be controlled such that the moisture output of both the first and second compartments is set to a function of the same set of input signals. 1. (canceled)2. A respiratory gases conditioning system comprising:at least two stages, each stage comprising a compartment configured to hold a volume of fluid, an inlet, and an outlet, wherein each stage is configured to add a target gas characteristic or substance to a gases flow;one or more heaters configured to heat any one or more of the compartments;one or more valves configured to control gases flowing through at least one of the stages; anda controller configured to control at least one of the one or more valves.3. The respiratory gases conditioning system of claim 2 , wherein the target gas characteristic or substance comprises a temperature level and/or a humidity level.4. The respiratory gases conditioning system of claim 2 , further comprising a housing claim 2 , wherein the at least two stages are defined within the housing.5. The respiratory gases conditioning system of claim 2 , wherein a partition separates the compartments of each of the at least two stages.6. The respiratory gases conditioning system of claim 2 , wherein each compartment is formed in a separate housing.7. The respiratory gases conditioning system of claim 6 , wherein the separate housings are configured to be engaged with one another.8. The respiratory gases conditioning system of claim 2 , wherein the volume of fluid in one compartment is isolated from the volume of fluid in another compartment.9. The respiratory gases conditioning system of claim 2 , wherein the volume of fluid in each compartment has a different exposed surface area.10. The respiratory gases conditioning system of claim 2 , wherein the volume of fluid in each ...

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Номер записи: 55

25-03-2021 дата публикации

HOME-BASED HELIOX SYSTEM WITH CARBON DIOXIDE REMOVAL

Номер: US20210085910A1

Автор: Parthasarathy Sairam, Slepian Marvin J.

Принадлежит:

A closed-circuit heliox delivery system and methods for alleviating symptoms of COPD and related disorders are provided. The system is self-monitoring and can be used outside of a hospital environment. The system contains a gas supply fluidly connected to a breathing circuit. The breathing circuit contains an upper airway device, such as a mask. The system contains a sensor(s) and controller. The sensors measure parameters in the system, the ambient environment, or related to the physiological state of the user. The controller can adjust the system to maintain parameters within the device, i.e. pressure, temperature, humidity, within predetermined ranges. The controller can adjust the system to maintain a target physiological state of the user, i.e. target blood oxygen levels or Work of Breathing (WOB). 131-. (canceled)32. A closed-loop breathing system , comprising:a. at least one regulator operatively coupled to one or more gas supplies;{'sub': '2', 'b. a breathing bag, wherein the breathing bag is configured to prevent a pressure circuit from decreasing to less than 0 cm HO, wherein the breathing bag is in fluid communication with the one or more gas supplies,'}c. an inspiratory conduit, wherein the inspiratory conduit is in fluid communication with the breathing bag and the one or more gas supplies, [{'sub': '2', 'i. wherein the one or more regulators are configured to control a rate of gas flowing out of the gas supply and direct the gas from the gas supply into the breathing bag and/or into the inspiratory conduit, so that while the patient is breathing, a total air pressure of the breathing bag is less than 4 cm HO, and'}, {'sub': '2', 'ii. wherein while the user inhales, the total air pressure of the breathing bag does not decrease below 0 cm HO.'}], 'd. an expiratory conduit, wherein the expiratory conduit is configured to receive expired gases from a patient;'}33. The closed-loop breathing system of claim 32 , further comprising a valve that opens claim 32 ...

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Номер записи: 56

29-03-2018 дата публикации

A USER INTERFACE AND SYSTEM FOR SUPPLYING GASES TO AN AIRWAY

Номер: US20180085544A1

Автор: Assi Milanjot Singh, BARNES Thomas Heinrich, Burgess Aidan Robert, Cheung Dexter Chi Lun, Edwards Taylor James, Evans Alicia Jerram Hunter, Hermez Laith Adeeb, HOLYOAKE Bruce Gordon, KLINK German, Nouraei Seyed Ahmad Reza, Oldfield Samantha Dale, PATEL ANIL, Payton Matthew Jon, White Craig Karl

Принадлежит:

The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient. 1. A respiratory apparatus for providing respiratory support to a patient , the apparatus comprising:a nasal interface and a gas conduit for delivering a flow of gases to an outlet of the nasal interface, and a device and/or a sensing arrangement adapted to configure the apparatus between a first configuration for providing a first level of the flow of gases to the outlet and a second configuration for providing a second level of the flow of gases to the outlet, the second level less than the first level, wherein the device and/or the sensor arrangement is located at the nasal interface or at or near to a patient end of the conduit.2. A respiratory apparatus for providing respiratory support to a patient , the apparatus comprising:a nasal interface and a gas conduit for delivering a flow of gases to an outlet of the nasal interface, and a device adapted to configure the gas conduit between a first configuration for providing a first level of the flow of gases to the outlet and a second configuration for providing a second level of the flow of gases to the outlet, the second level less than the first level,a sensing arrangement comprising a first pressure sensor located downstream of the device, and a second ...

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Номер записи: 57

19-03-2020 дата публикации

APPARATUS AND METHOD TO PROVIDE BREATHING SUPPORT

Номер: US20200086072A1

Автор: Ramanathan Rangasamy, SARDESAI RAJENDRA GURUDAS

Принадлежит: EUPNEA TECHNOLOGIES, INC.

A ventilator, or a breathing assistance apparatus, is disclosed to ventilate patients who may have breathing difficulties, said device comprising a inspiratory pressure control duct configured to be immersed in a first body of fluid; a positive end-expiratory pressure control duct configured to be immersed in a second body of fluid; at least one valve connected to the peak inspiratory pressure control duct and to the positive end-expiratory pressure control duct, and at least one controller communicably connected to the valve to control rate of cycling of the valve, thereby controlling number of breaths per minute, and to control the duration of peak inspiratory pressure also known as inspiratory time. 1. An apparatus to provide breathing support to a patient comprising:a valve comprising at least three ports, said three ports comprising an inlet port, a first outlet port and a second outlet port, the inlet port adapted for connection to a patient interface via a primary duct configured for a flow of a gas;at least one peak inspiratory pressure (PIP) control duct connected to the first outlet port of the valve;at least one positive end-expiratory pressure (PEEP) control duct connected to the second outlet port of the valve;wherein the valve is configured to cycle between the first outlet port and the second outlet port thereby switching the flow of the gas from the inlet port to only the first outlet port and from the inlet port to only the second outlet port;wherein a cycle corresponds to one breath;wherein when the gas flows from the inlet port to the first outlet port of the valve, the gas flows through the PIP control duct, thereby controlling a PIP in the apparatus so that the patient receives the PIP, and when the gas flows from the inlet port to the second outlet port of the valve, the gas in the apparatus flows through the PEEP control duct, thereby lowering pressure in the apparatus to a PEEP so that the patient receives the PEEP; andwherein if power to the ...

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Номер записи: 58

19-03-2020 дата публикации

DESIGN AND IMPLEMENTATION OF A LOW-COST BREATHING SUPPORT DEVICE

Номер: US20200086075A1

Автор: Mujeeb-U-Rahaman Muhammad

Принадлежит:

Respiratory diseases affect a large part of world population, especially in developing world. In this invention, we present a breathing support system to provide life-saving support to such patients. The system automates and regulates the use of a bag valve mask (commonly known as an ambu bag). The system uses mechanical actuators, sensors and a smart feedback control mechanism to automate and regulate the operation of the ambu bag to implement core functions of mechanical ventilation for life-saving applications. The system can also be used to provide better breathing support to newborns (e.g. to prevent hypoxia). The system can be used to save hundreds of thousands of lives in the developing world, in emergencies and during transportation globally. 1. A breathing support device comprising ,a system control unit that receives information from a sensing unit and commands from a user and generates signals to control a mechanical actuation unit;wherein, the mechanical actuation unit moves a gas volume generator to generate the desired breathing pattern;wherein the gas volume generator stores air, oxygen or their mixture for current breathing cycle;wherein the sensing unit comprises of gas flow and pressure sensors to ensure safe and effective operation of the breathing cycle;a power management unit to power the system using either an alternating current source or direct current source;a user-interface unit to get desired breathing parameters from medical practitioners and to display system status.2. The system control unit of claim 1 , further comprising a microcontroller to process signal from different sensors and to generate commands to control mechanical actuation unit.3. The mechanical actuation unit of claim 1 , further comprising a pair of rounded jaws that are moved by an electrical motor through a gear assembly consisting of two gears.4. The mechanical actuation unit of claim 1 , further comprising a pair of rounded jaws that are move to-and-fro by rack-and- ...

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Номер записи: 59

09-04-2015 дата публикации

POSITIVE AIRWAY PRESSURE SYSTEM WITH HEAD POSITION CONTROL

Номер: US20150096565A1

Автор: BOWDITCH Nathaniel L., CASEBOLT Tarmigan, GOFF Thomas G.

Принадлежит:

The invention is directed to a positive airway pressure (PAP) system with a head mounted harness assembly with a housing and a head position sensor located within or secured to the housing that detects the position of a patient's head, and communicates this head position information to a controller of the system which may be disposed within the housing having the position sensor or a second housing. The controller varies the output pressure of the pressure source e.g., a rotary compressor, based, at least in part, on the head position information provided by the head position sensor. In a preferred embodiment, the position sensor is an accelerometer. 1. A method for providing pressurized air to an airway of a patient , the method comprising:delivering pressurized air from a pressure source to the patient's airway;sensing the patient's sleeping position with a sensor; andadjusting, using a controller, pressure of the pressurized air so that pressure delivered is at a maximum when the patient's sleeping position is a supine position and is less than the maximum when the sleeping position is a lateral position, and there is a maximum rate of pressure drop of the pressurized air delivered when the patient's sleeping position is between 30° and 60° from the supine sleeping position.2. The method of wherein the adjusting step comprises adjusting pressure in multiple pressure drop steps between the supine sleeping position and a position 90° from the supine sleeping position.3. The method of wherein the rate of pressure drop between 30° and 60° from the supine sleeping position is constant.4. The method of wherein the delivering step comprises delivering the pressurized air to the patient's airway through a mask attached to the patient.5. The method of wherein the sensor is a head position sensor claim 1 , the method further comprising attaching the position sensor to the patient's head.6. The method of wherein the adjusting step comprises adjusting pressure of the ...

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Номер записи: 60

01-04-2021 дата публикации

DUAL-PRESSURE RESPIRATORY ASSISTANCE DEVICE

Номер: US20210093811A1

Автор: John Anna, John Stephen

Принадлежит:

A respiratory system provides bi-level pressure using a dual pressure device in fluid communication with a source of breathable gas and a patient interface. The dual pressure device includes a pipe submerged in a liquid in a container, and a float disposed along the pipe. The float cyclically moves up and down the pipe between a lower position and an upper position as the floats buoyancy changes. The floats position along the pipe causes the gas pressure level to alternate between a baseline pressure level and a peak pressure level by selectively blocking and unblocking an opening in the pipe, and selectively capturing and releasing gas from the float, with the maximum gas pressure being limited by the setting on a pressure relief valve. 1. A respiratory delivery system providing a bi-level pressure , the respiratory delivery system comprising:a container configured to support a volume of liquid;a pipe disposed in said container and configured to be at least partially submerged into the volume of liquid, said pipe defining at least one vent opening at a midsection thereof, wherein said pipe is configured to receive a flow of breathable gas from a gas source;a variable buoyancy float disposed along said pipe and inside said container, said float configured to cyclically float up and down said pipe between a lower position and a higher position, wherein said vent opening is occluded by said float in the higher position; andan adjustable pressure regulator in fluid communication with said pipe;wherein said float is configured to cyclically shift a pressure level of the breathable gas in said respiratory delivery system between a baseline pressure level when said float is in the lower position and gas bubbles are permitted to escape from said vent hole, and a peak pressure level that is higher than the baseline pressure level when said float is in the higher position and said vent hole is occluded by said float; andwherein the peak pressure level is defined by a setting ...

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Номер записи: 61

12-05-2022 дата публикации

A TIME SAVING SIT ON CARDIO PULMONARY RESUSCITATION DEVICE AND METHOD

Номер: US20220142859A1

Автор: Revankar Krishna Prasad Panduranga

Принадлежит:

A time saving sit on cardio pulmonary resuscitation device and method wherein the said device for providing cpr is adopted with an arrangement to seat a person and enable the start of cpr within five minutes of a heart attack affecting a patient, comprising of a reciprocating resuscitation force applicator where a counter force to the reactive force arising on applying compression force for resuscitation, said counter force being provided by the weight of a person sitting on the seating means and a belt based drive conveyance means forming a loop from top of a enclosure box allowing cpr without latching. A very clearly understandable, unambiguous, two step method of sitting on the device placed around the patient body, no confusion, no decision steps, no mental thinking on what to do. The device takes care of most decisions automatically. 2. The device as inwherein the drive means comprising of a drive force from one of a electric motor, a electric solenoid, along with a battery, its charger and a power chord to connect to a power line, a pneumatic piston drive, a manual mechanical drive, that is by human muscle power, an internal combustion engine drive in combination with initial start by electric motor drive and wherein the drive means is the said manual drive operated with a lever which gives the compression force and the said manual drive is a over ride facility as a redundancy measure in case of a non working of automatic system for any uncontrollable reason and wherein the pneumatic drive is by compressed air from a pump operated by one of a electric motor, one of manually, one of a compressed air cylinder, one of a compressed air produced by chemical reactant, and further an extra electric cable is provided for connecting to a mains power line.3. The device as inwherein the drive means has a further advancement with a arrangement of springs that are charged by the drive force, enabling use of smaller capacity motor and battery of lower current rating by ...

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Номер записи: 62

26-06-2014 дата публикации

Ventilator apparatus

Номер: US20140174443A1

Автор: Kevin D. Kroupa

Принадлежит: Allied Healthcare Products Inc

One or more embodiments of the presently described invention provides a ventilator including a timing device, an electric power source and a flow control device. The timing device is electronically controlled and is capable of controlling a period of time that a fluid is delivered to a patient. The timing device can control this period of time using a solenoid. The flow control device controls a rate of flow that the fluid is delivered to the patient. The flow control device can control the rate of flow using a plurality of orifices. The timing device and flow control device are separate from one another and each is capable of being operated independent of the other.

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Номер записи: 63

12-05-2022 дата публикации

Uvc sterilization systems and methods for patient ventilation

Номер: US20220143257A1

Автор: Joseph J. Lacey, Russell J. Kuzelka

Принадлежит: GE Precision Healthcare LLC

A ventilator system includes a gas flow chamber configured to receive ventilation gas circulating in a ventilation gas pathway of the ventilator and at least one UVC lamp. The UVC lamp is configured to radiate UVC spectrum light into the gas flow chamber to inactivate pathogens in the ventilation gas. A flow sensor is configured to measure a gas flow rate of the ventilation gas and a controller is configured to receive the gas flow rate, determine an intensity based on the gas flow rate, and control power to the UVC lamp based on the intensity.

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Номер записи: 64

05-04-2018 дата публикации

Medical Tubes for Selective Mechanical Ventilation of the Lungs

Номер: US20180093058A1

Автор: Pol Guillermo L.

Принадлежит:

A single lumen endobronchial tube for selective mechanical ventilation of the lungs can include a medical tube having a single lumen with an opening at each of opposed distal and proximal ends of the tube, the opening at the proximal end of the tube being adapted for connection to an external mechanical ventilation device, and the opening at the distal end of the tube being adapted for delivery of a medical gas; a wall extending throughout the tube's entire length having an internal wall surface, an external wall surface and a thickness therebetween, a portion of the wall having an aperture and a shaft adapted to house a mechanism for sealing the aperture; a distal bronchial cuff positioned along the external wall surface and adapted to expand radially outward; and at least a first proximal tracheal cuff positioned along the external wall surface and adapted to expand radially outward. 1. A single lumen endobronchial tube comprising:a medical tube comprising a tracheal portion and a bronchial portion having a common single lumen and a common tube wall thickness, wherein a proximal end of the tracheal portion includes an opening adapted for connection to an external mechanical ventilation device, and wherein a distal end of the bronchial portion includes an opening adapted for delivery of a medical gas;a first tracheal inflatable cuff positioned around an external surface of the tracheal portion and adapted to expand radially outward for sealing against a trachea of a patient;a second tracheal inflatable cuff positioned around an external surface of the tracheal portion and located at a position distal to the first tracheal inflatable cuff, the second tracheal inflatable cuff adapted to expand radially outward for sealing against the trachea of the patient;a bronchial inflatable cuff positioned around an external surface of the bronchial portion and adapted to expand radially outward against the left main stem bronchi of the patient;a distal intraluminal balloon ...

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Номер записи: 65

12-05-2022 дата публикации

Mechanical ventilator with oxygen concentrator

Номер: US20220143353A1

Автор: Chad Josey, Dylan Moore, Nicholas Leonard Oddo, Shane Woody

Принадлежит: Aires Medical LLC

A ventilator, including an enclosure; a tubing configured to receive an input gas; a flow outlet airline in fluid communication with the tubing, wherein the flow outlet airline includes an airline outlet, and the flow outlet airline is configured to supply an output gas to a user via the airline outlet; a breath detection airline including an airline inlet, wherein the airline inlet is separated from the airline outlet of the flow outlet airline, and the breath detection airline is configured to receive breathing gas from the user during exhalation by the user via the airline inlet; a pressure sensor in direct fluid communication with the breath detection airline, wherein the pressure sensor is configured to measure breathing pressure from the user, and the pressure sensor is configured to generate sensor data indicative of breathing by the user.

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Номер записи: 66

06-04-2017 дата публикации

Systems and methods for analyzing and delivering nitric oxide gas

Номер: US20170095634A1

Автор: J. W. Randolph Miller

Принадлежит: GeNOsys Inc

A gas analyzer for analyzing and delivering a therapeutic blend of nitric oxide gas to a patient is disclosed. The analyzer includes a nitric oxide metering circuit to meter a flow of nitric oxide into a blended gas mix, a gas sampling circuit to sample the blended gas mix, a user interface to allow a user to input a lower threshold concentration and an upper threshold concentration of nitric oxide in the blended gas mix, and a controller. In some cases, the controller is configured to operate the nitric oxide metering circuit to meter a flow of the nitric oxide into the blended gas mix to maintain the concentration of nitric oxide in the blended gas mix between the lower threshold concentration and the upper threshold concentration. Other implementations are described.

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Номер записи: 67

14-04-2016 дата публикации

Humidifying device for breathing mask

Номер: US20160101257A1

Автор: Kuo-Liang Lee, Rung-Yung LIN, Sheng-Wen PAI

Принадлежит: Delta Electronics Inc

The present invention relates to a humidifying device for a breathing mask. The breathing mask includes a breathing tube assembled thereto. The humidifying device includes a body, a liquid discharger, a liquid receiver, and a water-absorbent member. The body is connected to the breathing tube. The body includes a passage communicating with the breathing tube. The liquid discharger is fixed to the body. The liquid discharger includes a liquid outlet communicating with the passage. The liquid receiver is fixed to the body and is disposed below the liquid discharger. The liquid receiver includes a liquid inlet communicating with the passage. The water-absorbent member consists of a filtering material. The water-absorbent member is accommodated in the passage and disposed between the liquid outlet and the liquid inlet.

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Номер записи: 68

26-03-2020 дата публикации

Systems and methods for generating nitric oxide

Номер: US20200094011A1

Автор: David G. ZAPOL, Gregory W. HALL, Ian J. Gillerman, Wolfgang Scholz

Принадлежит: Third Pole Inc

Systems and methods for nitric oxide generation are provided. In an embodiment, an NO generation system can include a controller and disposable cartridge that can provide nitric oxide to two different treatments simultaneously. The disposable cartridge has multiple purposes including preparing incoming gases for exposure to the NO generation process, scrubbing exhaust gases for unwanted materials, characterizing the patient inspiratory flow, and removing moisture from sample gases collected. Plasma generation can be done within the cartridge or within the controller. The system has the capability of calibrating NO and NO2 gas analysis sensors without the use of a calibration gas.

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Номер записи: 69

04-04-2019 дата публикации

Vent Arrangement For Respiratory Mask

Номер: US20190099568A1

Автор: ARMITSTEAD Jeffrey Peter, Cohen Lance Steven, Dantanarayana Muditha Pradeep, Farrugia Steven Paul, Foote Roger Mervyn Lloyd, Formica Justin John, Huby Ronald James, Martin Dion Charles Chewe, Mazzone Damien Julian, Nagorny Aleksandr S., Sampietro Joseph M., Sears David Brent, Tang Zhuo Ran, Vandyke James William Charles

Принадлежит: RESMED LIMITED

A control system provides automated control of gas washout of a patient interface, such as a mask or nasal prongs. A gas washout vent assembly of the system may include a variable exhaust area such as one defined by overlapping apertures of the assembly or a conduit having a variable gas passage channel. The vent assembly may be formed by nested structures, such as conic or cylindrical members, each having an opening of the overlapping apertures. The vent assembly may be attached substantially near or included with the patient interface. An actuator of the assembly, such as a solenoid or voice coil, manipulates an aperture of the vent assembly. The actuator may be configured for control by a controller to change the exhaust area of the vent assembly based on various methodologies including, for example, sleep detection, disordered breathing event detection, rebreathing volume calculation and/or leak detection. 1. An apparatus for automated control of gas washout of a patient interface of a respiratory treatment apparatus comprising:a vent assembly having a variable exhaust area defined by one or more apertures of the vent assembly, the vent assembly being associated with a patient interface to vent expiratory gas; andan actuator to manipulate said one or more apertures of the vent assembly.2. The apparatus of further comprising a controller including a processor claim 1 , the controller coupled with the actuator claim 1 , the controller configured to operate the actuator to change the exhaust area of the vent assembly.3. The apparatus of wherein the controller is configured to switch between a treatment setting for the variable exhaust area and a comfort setting for the variable exhaust area.4. The apparatus of wherein the controller is configured with a user interface for input of comfort settings including a setting for the variable exhaust area.5. The apparatus of wherein the comfort setting further includes one or more of a humidity setting claim 3 , pressure ...

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Номер записи: 70

04-04-2019 дата публикации

Systems for anesthetic agent vaporization

Номер: US20190099581A1

Автор: Russell James Kuzelka

Принадлежит: General Electric Co

Methods and systems are provided for delivering anesthetic agent to a patient. In one embodiment, a liquid anesthetic agent container includes a base region, an interior of the base region configured to hold liquid anesthetic agent, an adapter region, and a capillary force vaporizer (CFV) housed in the adapter region. The adapter region includes a coupling end configured to couple to a patient breathing circuit to supply anesthetic agent vaporized by the CFV to a patient.

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Номер записи: 71

02-06-2022 дата публикации

Intelligent gas source management

Номер: US20220168520A1

Автор: Craig R. Tolmie, Jaron M. Acker, Jeff MILSAP, Jeffrey Schmidt, Robin ROEHL

Принадлежит: Mallinckrodt Pharmaceuticals Ireland Ltd

Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display.

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Номер записи: 72

02-06-2022 дата публикации

METHODS AND APPARATUS FOR PREVENTING RAINOUT

Номер: US20220168533A1

Автор: Holley Liam, Klasek Paul Jan, Malouf Gordon Joseph

Принадлежит: ResMed Pty Ltd

Components for a respiratory treatment apparatus that is capable of providing a humidified respiratory treatment permit a reduction in condensation in a patient interface and/or its gas delivery tubing. In some embodiments, a rainout valve that may be an integrated component of a humidifier output aperture, or coupled thereto, may reduce condensation with a vapor barrier operable to selectively block and permit humidified gas transfer from the humidifier. For example, the barrier may be operable to open in response to a flow of pressurized breathable gas that may be generated by a flow generator of the respiratory treatment apparatus. In the absence of such a generation of pressurized flow, the barrier may prevent a transfer of the humidified gas such as into a conduit for a patient interface by retracting to a closed position. Example vapor barriers may include a resilient membrane, cover, bellows, flap, shutter or other suitable valve. 1. A device to accumulate supplemental oxygen in a respiratory treatment apparatus , the device comprising:a gas conduit having an input aperture and an output aperture, the gas conduit configured as a channel for movement of a gas between the input aperture and the output aperture, the input aperture configured to receive gas output from a blower of the respiratory treatment apparatus, the output aperture configured to convey gas to a patient interface from the blower, the gas conduit including a supplemental oxygen input proximate to the output aperture; anda barrier in the channel between the input aperture and the output aperture of the gas conduit, the barrier operable to selectively prevent vapor passing from the output aperture to the input aperture, wherein the barrier is further configured to permit accumulation of supplemental oxygen in the gas conduit by reducing back flow of the supplemental oxygen during user expiration.2. The device of claim 1 , wherein the barrier is configured to prevent supplemental oxygen from ...

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Номер записи: 73

27-04-2017 дата публикации

RESPIRATORY ASSISTANCE APPARATUS

Номер: US20170113014A1

Автор: NITTA Kazufuku

Принадлежит:

A respiratory assistance apparatus guides gas from a gas supply source to a connection part via an inspiratory pathway. A check valve that allows the gas from the gas supply source to pass to the connection part side and prevents exhaled air discharged from the nose or mouth from flowing into the gas supply source side is arranged on the inspiratory pathway. An expiratory valve is arranged on the inspiratory pathway closer to the connection part than the check valve is, and the expiratory valve is opened to discharge the exhaled air from the inspiratory pathway during expiration. This eases a respiratory load on the patient and reduces contamination of the apparatus. 1. A respiratory assistance apparatus comprising:a gas supply source configured to supply a gas;a connection part that is connected to a nose or mouth and configured to supply the gas thereto;an inspiratory pathway configured to make the gas supply source communicate with the connection part and guide the gas;a backflow prevention mechanism that is arranged on the inspiratory path and configured to allow the gas of the gas supply source to pass to the connection part side and to prevent exhaled air discharged from the nose or mouth via the connection part from flowing into a side of the gas supply source; andan air hole that is formed in a pathway constituting member constituting the inspiratory pathway and configured to discharge the exhaled air, the air hole being formed closer to the connection part than the backflow prevention mechanism is.2. The respiratory assistance apparatus according to claim 1 , wherein the backflow prevention mechanism is a check valve that operates mechanically by using a pressure or flow of the exhaled air.3. The respiratory assistance apparatus according to claim 1 , wherein the backflow prevention mechanism is an actuated valve that operates by using an electrical signal obtained by detecting the exhaled air.4. The respiratory assistance apparatus according to claim 1 , ...

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Номер записи: 74

09-04-2020 дата публикации

ENHANCED PERFORMANCE VERIFICATION PORT FOR THERAPEUTIC GAS DELIVERY

Номер: US20200108214A1

Автор: Acker Jaron M., Falligant John C., Milsap Jeff, Roehl Robin, Schmidt Jeffrey, Tolmie Craig R.

Принадлежит:

Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display. 1. A method of confirming the proper functioning of gas delivery and injection module operation , comprising:receiving an injection module at an outlet port;providing a flow of breathing gas at an inlet port at a breathing gas flow rate, wherein the inlet port is in fluid communication with the outlet port;measuring the breathing gas flow rate from the gas supply at a delivery flow sensor and at a confirmatory flow sensor, wherein the delivery flow sensor and the confirmatory flow sensor are in fluid communication with the inlet port and the outlet port;measuring the breathing gas flow rate from the gas supply at an injection module delivery flow sensor and an injection module confirmatory flow sensor, wherein the injection module delivery flow sensor and the injection module confirmatory flow ...

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Номер записи: 75

03-05-2018 дата публикации

SYSTEM FOR PNEUMATIC TESTING OF GAS FLOW MODULE AND METHOD OF OPERATION THEREOF

Номер: US20180117271A1

Автор: GUNNESON PAUL BRUCE, WIGFORSS ERIC PAUL

Принадлежит:

A gas flow monitoring system (A, B, ) for monitoring a patient gas flow and having pressure sensors (), a pneumatic system (), valves (), and a pump (), the system including a controller () configured to: determine whether a test mode is selected; configure the pump and the valves to pressurize at least a portion of the pneumatic system when in a test mode; obtain sensor information indicating pressure within at least a portion of the pneumatic system, when in the test mode; and determine whether a leak test fails based upon at least the sensor information. 1. A gas flow monitoring system for monitoring a patient gas flow and having at least one port , pressure sensors , a pneumatic system , valves , and a pump , the system comprising: configure the pump and the valves to pressurize at least a portion of the pneumatic system when in a test mode;', 'obtain sensor information indicating pressure within at least a portion of the pneumatic system, when in the test mode;', 'determine whether a leak test fails based upon at least the sensor information; and', 'determine whether an accessory is coupled to the at least one port, the accessory including at least one of a patient-type interface or a test-type interface., 'a controller configured to2. The gas flow monitoring system of claim 1 , wherein the controller is configured to render results of the determination indicating whether the leak test has failed.3. The gas flow monitoring system of claim 1 , wherein the at least one port comprises a gas flow portion that is proximal to the patient.4. (canceled)5. The gas flow monitoring system of claim 1 , wherein the controller is configured to determine a type of accessory when it is determined that an accessory is coupled to the at least one port.6. The gas flow monitoring system of claim 1 , wherein the accessory comprises identification information which identifies a type of the accessory.7. The gas flow monitoring system of claim 6 , wherein the controller is configured ...

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Номер записи: 76

25-08-2022 дата публикации

Method and system of capnography

Номер: US20220265164A1

Автор: Alonzo C. Aylsworth

Принадлежит: Incoba LLC

At least one example embodiment is a method of generating a capnographic waveform, the method including: measuring carbon dioxide in exhaled gas flowing in a first flow path, the measuring creates a first set of values indicative of carbon dioxide; measuring, by the controller of the device, carbon dioxide in exhaled gas flowing in a second flow path distinct from the first flow path, the measuring creates a second set of values indicative of carbon dioxide; and creating, by the controller of the device, a capnographic waveform. Creating the capnographic waveform may including using the first set of values indicative of carbon dioxide, the second set of values indicative of carbon dioxide, and/or both the first and second sets of values of carbon dioxide.

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Номер записи: 77

24-07-2014 дата публикации

OXYGEN COMPRESSOR WITH BOOST STAGE

Номер: US20140202461A1

Автор: Chambers William M., Fabian Martin, Goertzen Gerold, Nemcek Michael R., Wysocki Kevin S.

Принадлежит: INVACARE CORPORATION

An oxygen concentration and compression system includes an oxygen concentrator, a boost stage, a compressor, and a portable container. The boost stage receives oxygen enriched gas at a first pressure from the oxygen concentrator. The boost stage includes a pressure increasing device that increases the pressure of the oxygen enriched gas from the first pressure to a second, controlled pressure. The compressor receives the oxygen enriched gas at the second, controlled pressure and compresses the oxygen enriched gas to a third pressure in the portable container for later use by a patient. A patient outlet provides oxygen enriched gas from the oxygen concentrator or the boost stage for use by a patient. 1. An oxygen concentration and compression system comprising:an oxygen concentrator having an inlet that receives air and an outlet that provides a source of oxygen enriched gas at a first pressure;a boost stage having an inlet that receives at least a portion of said oxygen enriched gas at said first pressure, a pressure increasing device that increases the pressure of the oxygen enriched gas from the first pressure to a second pressure, an outlet that provides a source of oxygen enriched gas at the second pressure, and a pressure limiting device that controls said second pressure;a compressor having an inlet that receives at least a portion of said oxygen enriched gas at said second pressure and an outlet that provides a source of oxygen enriched gas at a third pressure that is higher than said second pressure;a portable container that receives and stores oxygen enriched gas from the compressor at the third pressure for subsequent use by a patient;a patient outlet that provides oxygen enriched gas from the oxygen concentrator or the boost stage for use by a patient.2. The oxygen concentration and compression system of wherein the pressure limiting device controls said second pressure claim 1 , such that said second pressure is substantially constant.3. The oxygen ...

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Номер записи: 78

25-08-2022 дата публикации

BREATHABLE GAS INLET CONTROL DEVICE FOR RESPIRATORY TREATMENT APPARATUS

Номер: US20220265957A1

Автор: Brambilla Enrico, Chalvignac Philippe Auguste, Creusot David, YEE Arthur Kin-Wai

Принадлежит: ResMed Paris SAS

A breathable gas inlet control device permits flow regulation at the inlet of a flow generator for a respiratory treatment apparatus such as a ventilator or continuous positive airway pressure device. The device may implement a variable inlet aperture size based on flow conditions. In one embodiment, an inlet flow seal opens or closes the inlet to a blower in accordance with changes in pressure within a seal activation chamber near the seal. The seal may be formed by a flexible membrane. A controller selectively changes the pressure of the seal activation chamber by controlling a set of one or more flow control valves to selectively stop forward flow, prevent back flow or lock open the seal to permit either back flow or forward flow. The controller may set the flow control valves as a function of detected respiratory conditions based on data from pressure and/or flow sensors. 1. A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient in successive respiratory cycles , each cycle including an inspiration phase and an expiration phase , comprising:a gas inlet having a variable aperture that is adjustable between a range of positions from a closed position to a fully open;a seal activation chamber proximate to the variable aperture;a gas outlet; anda flow generator adapted to provide a supply of pressurized breathable gas from the gas inlet and to the gas outlet; anda controller to control a level of pressure generated by the flow generator,wherein during the expiration phase, the controller sets a pressure condition of the seal activation chamber to close the variable aperture of the gas inlet, whereby stopping of inlet flow slows inertia of an impeller of the flow generator to brake the impeller.2. The apparatus of further comprising flow control valves coupled to the seal activation chamber claim 1 , wherein the controller sets the pressure condition of the seal activation chamber by activating the flow control valves upon ...

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Номер записи: 79

31-07-2014 дата публикации

Apparatus and method for relieving dyspnoea

Номер: US20140209097A1

Автор: John O'dea

Принадлежит: Koninklijke Philips NV

Apparatus for relieving dyspnoea in an ambulatory exercising subject comprises a housing to be worn on the subject, and within which a variable speed air blower motor is located for delivering an air supply to the subject through a mouthpiece at a pressure similar to average intrinsic positive end-expiratory pressure of the subject. A pressure transducer in the mouthpiece monitors the pressure during breathing cycles of the subject, and a control circuit determines the average intrinsic positive end-expiratory pressure of the subject over five breathing cycles. The control circuit operates the air blower motor for delivering the air supply to the subject at a pressure similar to the determined average intrinsic positive end-expiratory pressure.

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Номер записи: 80

10-05-2018 дата публикации

BREATHING MASK

Номер: US20180125700A1

Автор: Ray Curtis, Ray Michael, Ray Robert

Принадлежит:

One variation of a method—for controlling a breathing mask comprising a flow control module configured to mate to nostrils of a user and comprising an actuator configured to adjust obstruction to airflow out of the flow control module—includes: accessing a wake alarm time; accessing a sleep delay duration; at a first time, receiving an indicator that the user is preparing for sleep; in response to receiving the indicator, triggering the actuator to transition from a minimum-restriction position toward a maximum-restriction position at a second time succeeding the first time by the sleep delay duration, the actuator minimally obstructing airflow out of outlet port in the minimum-restriction position and maximally obstructing airflow out of outlet port in the maximally-restriction position; and, prior to the wake alarm time, triggering the actuator to transition back to the minimum-restriction position. 1. A breathing mask comprises:an eye covering comprising an opaque material, defining an eye region configured to extend over both eyes of a user wearing the eye covering, and defining a nose region configured to extend over a nose of the user;a strap configured to retain the eye covering on a head of the user with the eye region over both eyes of the user and with the nose region aligned to the nose of the user;a flow control module coupled to the nose region of the eye covering, defining a manifold, comprising a nostril junction fluidly coupled to the manifold and configured to mate with nostrils of the nose of the user, and comprising an outlet port fluidly coupled to the manifold;an inlet check valve fluidly coupled to the manifold and configured to open in response to a decrease in air pressure inside the manifold;an actuator operable over a range of positions between a minimum-restriction position and a maximum-restriction position, the actuator minimally restricting airflow out of the outlet port in the minimum-restriction position and maximally restricting ...

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Номер записи: 81

21-05-2015 дата публикации

ELECTRONIC AND MANUAL BACKUP FLOW CONTROL SYSTEMS

Номер: US20150136235A1

Автор: An Li, Cipolli Richard G., Jawidzik Geoffrey C., Jiancheng Luo, Min Hu, Schon Peter B.

Принадлежит:

In various embodiments, an electronic flow selector of a fluid flow control system may be used to select a flow rate of a fluid. When the system is in an electronic mode, an encoder may electronically encode the fluid flow selection. A controller may receive the electronically encoded flow selection and transmit a corresponding control signal to an electronic valve to allow the fluid to flow at the selected flow rate. When the system is in a manual mode, backup manual flow selectors may be used to directly control the flow rate of a fluid. When the system is in a manual mode, the mechanical backup flow selectors may be in a deployed position. When the system is in an electronic mode, the mechanical backup flow selectors may be in a retracted position. Particular applications to gases and anesthesia delivery are disclosed herein. 1. A fluid flow control system , comprising:an electronic flow control valve configured to receive a first fluid;an first flow selector configured to allow for a selection of a flow rate of the first fluid via the electronic flow control valve when the fluid flow control system in an electronic mode;a mechanical flow control valve configured to receive the first fluid;a second, manual flow selector configured to control a flow rate of the first fluid via the mechanical flow control valve; and 'enable the operation of the second, manual flow selector when the fluid flow control system is in a manual mode.', 'an activation mechanism configured to'}2. The fluid flow control system of claim 1 , wherein the activation mechanism comprises a deployment mechanism configured to:deploy the second, manual flow selector when the fluid flow control system is in the manual mode; andretract the manual flow selector when the fluid flow control system is in the electronic mode.3. The fluid flow control system of claim 1 , wherein the activation mechanism comprises a locking mechanism configured to:lock the manual flow selector to prevent adjustments when the ...

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Номер записи: 82

11-05-2017 дата публикации

METHOD AND SYSTEM FOR ADJUSTING A LEVEL OF VENTILATORY ASSIST TO A PATIENT

Номер: US20170128684A1

Автор: Beck Jennifer, Comtois Norman, Jalde Fredrik, Sinderby Christer

Принадлежит:

The present disclosure relates to a method and a mechanical ventilation system for adjusting a level of ventilatory assist to a patient. A neuro-mechanical efficiency of the patient is determined. A control value is received at the mechanical ventilation system. The level of ventilatory assist to the patient is determined on the basis of the neuro-mechanical efficiency and of the control value. The mechanical ventilation system may be adjusted automatically based on the determined level of ventilatory assist to the patient. Alternatively, the determined level of ventilatory assist to the patient may be displayed for the benefit of an operator and a manual command may be received for adjusting the mechanical ventilation system. 1. A method implemented in a mechanical ventilation system for adjusting a level of ventilatory assist ASSIST to a patient , comprising:receiving a control value at the mechanical ventilation system;determining a neuro-mechanical efficiency NME of the patient; anddetermining the level of ventilatory assist ASSIST to the patient on the basis of the neuro-mechanical efficiency NME of the patient and of the control value.2. The method of claim 1 , comprising displaying the determined level of ventilatory assist ASSIST.3. The method of claim 2 , comprising receiving a command for adjusting the mechanical ventilation system.4. The method of claim 1 , comprising automatically adjusting the mechanical ventilation system to provide the level of ventilatory assist ASSIST to the patient.7. The method of claim 6 , comprising calculating a total ventilatory requirement Reqof the patient on the basis of EAmsi.8. The method of claim 7 , wherein the level of ventilatory assist ASSIST to the patient is determined using the relation:{'br': None, 'sub': 'total', 'ASSIST=Req−NME.'}11. The method of claim 10 , wherein determining the nominal tidal volume Vtcomprises:specifying a gender of the patient;specifying a height of the patient;determining the predicted ...

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Номер записи: 83

11-05-2017 дата публикации

VOLUME DIVIDER AND METHOD OF RESPIRATORY GAS DIVISION

Номер: US20170128693A1

Автор: DAROWSKI Marek, KOZARSKI Maciej, MICHNIKOWSKI Marcin, PALKO Krzysztof Jakub, STANKIEWICZ Barbara, ZIELINSKI Krzysztof

Принадлежит:

The object of the invention is an inspiratory gas volume divider comprising at least two inspiratory lines () having inspiratory branches () at ends thereof and comprising one-way valves () and at least two expiratory lines () having expiratory branches () at ends thereof and comprising one-way valves (). The inspiratory branches and expiratory branches are in pairs combined with each other in at least two inspiratory- expiratory pairs. The initial portions of the inspiratory lines are connected to the divider valve () provided with a control input. In the inspiratory lines, after the volume valve divider, there are included systems measuring gas volume () with output signals thereof delivered to the controller (), and the output signal thereof is connected to the volume divider's input. Further, the object of the invention is a method of dividing the inspiratory gas volume in a divider comprising at least two inspiratory lines and two expiratory lines connected to a controlled divider provided with a control input. The method comprises the stages of: setting the desired inspiratory gas volume division, measuring and subsequently re-setting the division in feedback loop via the control input. In the stage of measuring, the volume of gas in each of the inspiratory lines is subjected to measurement, and the measurement signal is converted in an automatic controller to the valve divider's control signal. 118191416232021151771223231112224524. An inspiratory gas volume divider comprising at least two inspiratory lines ( , ) ending with inspiratory branches ( ,) and comprising one-way valves ( , ) and at least two expiratory lines ( , ) ending with expiratory branches ( , ) and comprising one-way valves ( ,) , wherein the inspiratory branches and the expiratory branches are in pairs combined with each other in at least two inspiratory-expiratory pairs , while the initial portions of the inspiratory lines are connected to the valve divider () , characterised in that the ...

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Номер записи: 84

11-05-2017 дата публикации

Breathing Apparatus Detection and Purging

Номер: US20170128694A1

Автор: Acker Jaron M., Kohlmann Thomas

Принадлежит:

Described are methods for safer nitric oxide delivery, as well as apparatuses for performing these methods. The methods may include detecting the presence or absence of a nasal cannula, and stopping the delivery of nitric oxide or providing an alert if the cannula is disconnected. The methods may also include purging the nasal cannula if it is reconnected after a disconnection or if it is replaced by a new cannula. Other methods pertain to automatic purging of the delivery conduit if the elapsed time between successive deliveries of therapeutic gas exceeds a predetermined period of time. 1. A method of administering therapeutic gas containing nitric oxide , the method comprising:detecting the presence or absence of a nasal or oral breathing apparatus at a connection port of a nitric oxide delivery apparatus; andflowing therapeutic gas containing nitric oxide to the breathing apparatus if the breathing apparatus is determined to be connected to the apparatus and not flowing therapeutic gas containing nitric oxide if the breathing apparatus is determined not to be connected to the apparatus.2. The method of claim 1 , further comprising providing an alert if the breathing apparatus is determined not to be connected to the apparatus.3. The method of claim 2 , wherein the alert includes one or more of an audible alert claim 2 , a visual alert and a text alert.4. The method of claim 1 , further comprising purging the breathing apparatus if the breathing apparatus is determined to be connected to the apparatus after the breathing apparatus is determined not to be connected to the apparatus.5. The method of claim 4 , wherein the breathing apparatus is purged automatically without patient intervention.6. The method of claim 4 , wherein the breathing apparatus is purged during patient expiration.7. The method of claim 1 , further comprising purging the breathing apparatus prior to administering the therapeutic gas containing nitric oxide.8. The method of claim 1 , wherein ...

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Номер записи: 85

01-09-2022 дата публикации

APPARATUS AND METHOD FOR DISRUPTING AND PREVENTING SNORE AND SLEEP APNEA

Номер: US20220273483A1

Автор: Hariri Aliasghar

Принадлежит:

An apparatus and method for disrupting or preventing snore and sleep apnea comprising an inflatable headgear that is configured to be inflated and deflated by an air inflator through a tube, wherein the air inflator is actuated by the control commands sent to a control unit from a processing unit, upon detection of a trigger event by means of a sensor, wherein the movement caused by the inflation and deflation of the inflatable headgear may move the head of a user and disrupt or prevent snore and sleep apnea. 118.-. (canceled)19. An apparatus comprising:a breathing mask;a positive airway pressure device;an inflatable component configured to inflate and expand, and to subsequently deflate and collapse, causing the head of a user to move;a tube connecting at least one air inflator to the inflatable component;at least one sensor for detecting a trigger event;at least one release valve configured to deflate the inflatable component;a flexible hose connecting the breathing mask to the positive airway pressure device;a control unit in communication with the air inflator to actuate the air inflator on and off and the control unit further in communication with the release valve to close the release valve during the inflation of the inflatable component and open the release valve during the deflation of the inflatable component, and the control unit is configured to be in communication with the positive airway pressure device;a processing unit in communication with the control unit, wherein the processing unit is configured to detect the trigger event and transmit control commands to the control unit to trigger actuation of at least one of the air inflator or the positive airway pressure device.20. The apparatus of claim 19 , wherein the positive airway pressure device comprises at least one blower.21. The apparatus of claim 19 , wherein the positive airway pressure device comprises:at least one air filer;at least one humidifier, and;at least one heater.22. The apparatus of ...

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Номер записи: 86

23-04-2020 дата публикации

SYSTEM AND METHOD FOR ADAPTIVE SCHEDULING OF PAUSE MANEUVERS USED FOR ESTIMATION OF COMPLIANCE AND/OR RESISTANCE DURING MECHANICAL VENTILATION

Номер: US20200121877A1

Автор: ALBANESE Antonio, Chbat Nicolas Wadih, CHIOFOLO CAITLYN MARIE, Garde Smita, ISAZA FERNANDO JOSE, Seiver Adam Jacob, VAN HISE DANIEL, VICARIO Francesco

Принадлежит:

A ventilation device includes a mechanical ventilator (), respiratory sensors () configured to acquire measurements of respiratory variables including at least measurements of airway pressure and airway flow, and an electronic processor () programmed to perform a ventilation method including: operating the mechanical ventilator to provide mechanical ventilation controlled using measurements acquired by the respiratory sensors; performing a pause maneuver comprising closing at least one of an inhalation valve () and an exhalation valve () for a pause interval and estimating a respiratory mechanics index from one or more respiratory system parameters estimated from measurements acquired by the respiratory sensors during or after the pause interval; and triggering a pause maneuver in response to detecting a change in the estimated respiratory mechanics index. 1. A ventilation device comprising:a mechanical ventilator;respiratory sensors configured to acquire measurements of respiratory variables including at least measurements of airway pressure and airway flow;an electronic processor; and operating the mechanical ventilator to provide mechanical ventilation controlled using measurements acquired by the respiratory sensors,', 'performing a pause maneuver comprising closing at least one of an inhalation valve and an exhalation valve for a pause interval and estimating a respiratory mechanics index from one or more respiratory system parameters estimated from measurements acquired by the respiratory sensors during or after the pause interval, and', estimating the respiratory mechanics index by computing a time constant (τ) of a decay of airway flow measured by the respiratory sensors during an exhalation phase of a breath, detecting the change in the estimated respiratory mechanics index as a detected change in the time constant computed over successive breaths, and triggering a pause maneuver in response to the detected change in the time constant over successive ...

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Номер записи: 87

19-05-2016 дата публикации

AUTOMATED DRUG DISPENSING SYSTEMS WITH AUTOMATED HME BYPASS FOR VENTILATOR CIRCUITS

Номер: US20160136368A1

Автор: Spandorfer Michael

Принадлежит:

Dispensing systems for a ventilator circuit having a ventilator flow circuit with a normal inhalation flow path with a heat and moisture exchanger (HME), a flow sensor in communication with the ventilator circuit, an automated drug dispensing system with an actuator and a pressurized canister residing upstream of the HME, a bypass inhalation flow path residing downstream of the pressurized canister, and at least one electromechanical valve residing in the inhalation flow path to selectively open the valve which can be normally closed to define a closed bypass path. At least one controller opens the at least one electromechanical valve to open the bypass inhalation flow path and close the normal inhalation flow path through the HME only when the flow sensor indicates air flow is in an inhalation direction. Once the valve is open, the actuator dispenses medication through the bypass inhalation flow path to the patient. 1. A dispensing system for a ventilator circuit , comprising:a ventilator flow circuit comprising a normal inhalation flow path with a heat and moisture exchanger (HME);a flow sensor in communication with the ventilator circuit;an automated drug dispensing system with an actuator and a pressurized canister residing upstream of the HME;a bypass inhalation flow path residing downstream of the pressurized canister;at least one electromechanical valve residing in the inhalation flow path to selectively open a valve which is normally closed to define a closed bypass inhalation flow path; andat least one controller in communication with the flow sensor, the actuator and the at least one electromechanical valve, wherein the at least one controller opens the at least one electromechanical valve to open the bypass inhalation flow path and close the normal inhalation flow path through the HME only when the flow sensor indicates air flow is in an inhalation direction, and wherein, once the at least one electromechanical valve is open, the at least one controller ...

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Номер записи: 88

19-05-2016 дата публикации

Gas Delivery Device and System

Номер: US20160136377A1

Автор: Bathe Duncan P., Christensen David, Klaus John

Принадлежит:

A gas delivery system including a gas delivery device, a control module and a gas delivery mechanism is described. An exemplary gas delivery device includes a valve assembly with a valve and circuit including a memory, a processor and a transceiver in communication with the memory. The memory may include gas data such as gas identification, gas expiration and gas concentration. The transceiver on the circuit of the valve assembly may send wireless optical line-of-sight signals to communicate the gas data to a control module. Exemplary gas delivery mechanisms include a ventilator and a breathing circuit. Methods of administering gas are also described.

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Номер записи: 89

07-08-2014 дата публикации

OXYGEN CONCENTRATOR SUPPLY LINE OBERPRESSURE PROTECTION

Номер: US20140216453A1

Автор: Whitcher Douglas Adam

Принадлежит: KONINKLIJKE PHILIPS N.V.

A portable oxygen concentrator () including a reservoir () for storing oxygen-enriched gas and a delivery line () for delivering the oxygen-enriched gas from the reservoir to a subject. An oxygen delivery valve () communicates with the reservoir via the delivery line. A sensor () is in communication with gas flowing through the delivery line and generates a signal related to a breathing characteristic of the subject. A controller () operates in a first mode wherein the controller opens the oxygen delivery valve for continuous delivery of the gas to the subject and a second mode wherein the controller selectively opens and closes the oxygen delivery valve responsive to the signal of the sensor to deliver the gas in pulsed durations. A relief valve () is associated with the delivery line and opens responsive to the pressure within the delivery line exceeding a predetermined threshold so as to decrease pressure within the delivery line. 1. A portable oxygen concentrator , comprising:a reservoir configured to store oxygen-enriched gas;a delivery line configured to deliver the oxygen-enriched gas from the reservoir to a subject;an oxygen delivery valve communicating with the reservoir via the delivery line;a sensor in fluid communication with the oxygen-enriched gas flowing through the delivery line and configured to generate an output signal conveying information related to a breathing characteristic of the subject; 1) a first mode wherein the controller opens the oxygen delivery valve for continuous delivery of the oxygen-enriched gas through the delivery line to the subject, and', '2) a second mode wherein the controller selectively opens and closes the oxygen delivery valve responsive to the output signal of the sensor to deliver the oxygen-enriched gas to the subject in pulses; and, 'a controller configured to operate ina relief valve associated with the delivery line and configured to open and expel the oxygen-enriched gas out of the delivery line, responsive to ...

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Номер записи: 90

17-05-2018 дата публикации

System and methods for improved cough segmentation

Номер: US20180133418A1

Автор: Anandi Mahadevan, James GARSTECK, Maarten Leonardus Christian Brand

Принадлежит: Koninklijke Philips NV

Systems ( 100 ) and methods ( 300 ) for controlling coughing by subjects ( 106 ) control the opening and closing of a valve ( 12 ) (as well as partially opening and/or partially closing) to establish and disestablish a fluid communication between the airway of the subject and atmospheric pressure. The valve is opened and closed more than once during individual exhalations by the subject. Control of the valve is adjusted based on a pressure level in or near the airway of the subject.

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Номер записи: 91

18-05-2017 дата публикации

Control of Breathing During MRI-Based Procedures

Номер: US20170135599A1

Автор: Brown Kevin

Принадлежит:

The valve of an active breathing control (ABC) device can be driven by the output of the navigator channel of the MRI scanner, rather than by inference from a measured breath flow rate. Where the MRI scanner is integrated with a radiotherapy device, the MRI data can be used to trigger the enforced breath-hold by the ABC, and the radiotherapy delivered while the ABC valve is shut. If the MRI data pertains to the actual position of the tumour, then the ABC device will (in effect) hold the tumour at a precise and reproducible point for treatment. 1. An apparatus for imaging a patient , comprising;a magnetic-resonance imager;a breath control device comprising a selectively-closeable valve adapted to prevent breath flow in at least one direction; and obtain a scan of the patient with the magnetic-resonance imager to yield an output image with fewer than three dimensions;', 'analyse the output image; and', 'if the output image meets a defined criterion, close the valve to prevent breathing., 'a control apparatus adapted to2. The apparatus according to claim 1 , wherein the control apparatus is adapted to determine from the output image the position of a diaphragm or a tumour of the patient.3. The apparatus according to claim 1 , wherein the scan is a one-dimensional scan.4. The apparatus according to claim 1 , wherein the control apparatus is further adapted to trigger a scan of the patient to yield a three-dimensional output while the valve is closed.5. The apparatus according to claim 4 , wherein the control apparatus is adapted to suspend the triggered scan when the valve subsequently opens.6. The apparatus according to claim 5 , wherein the control apparatus is adapted to:after the valve subsequently opens, obtain a further scan of the patient with the magnetic-resonance imager to yield an output image with fewer than three dimensions;analyse the output image; andwhile the output meets a defined criterion, close the valve to prevent breathing and resume the suspended ...

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Номер записи: 92

08-09-2022 дата публикации

Method, apparatuses and computer program product for enabling operation of an aerosol generation device

Номер: US20220279860A1

Автор: Adrian Peter STOCKALL, Jonathan RUIZ PEINADO, Magd KUDAMA AL MUDARIS

Принадлежит: JT INTERNATIONAL SA

A method of enabling an operation of an aerosol generation device including at the aerosol generation device: determining whether an aerosol generation device held operation enablement message is valid or invalid, and enabling the operation if the aerosol generation device held operation enablement message is determined to be valid, at the personal computing device attempting to obtain a server generated operation enablement message, transmitting the server generated operation enablement message to the aerosol generation device if the server generated operation enablement message is obtained, and generating a personal computing device generated operation enablement message and transmitting the personal computing device operation enablement message to the aerosol generation device if the server generated operation enablement message is not obtained. The aerosol generation device uses whichever of the operation enablement messages it receives from the personal computing device as the aerosol generation device held operation enablement message.

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Номер записи: 93

09-05-2019 дата публикации

METHOD AND SYSTEMS FOR THE DELIVERY OF OXYGEN ENRICHED GAS

Номер: US20190134340A1

Автор: Nebrigac Dragan

Принадлежит:

Described herein are various embodiments of an oxygen concentrator system and method of delivering oxygen enriched gas to a user. In some embodiments, oxygen concentrator system includes one or more components that improve the efficiency of oxygen enriched gas delivery during operation of the oxygen concentrator system. In some embodiments, time measurements based on the penultimate breath taken by the user are used to alter the oxygen delivery parameters. 1. A method of providing oxygen enriched gas to a user of an oxygen concentrator , comprising:measuring the time between a plurality of successive breaths, wherein a breath is determined to begin when a drop in pressure is measured using a pressure sensor coupled to an outlet of a conduit coupling the user to an oxygen enriched gas source;determining an average time between each of the successive breaths, wherein the time between the penultimate breath and the last breath is not used to determine the average time;setting an inspiration breath pressure threshold for the pressure sensor based on the determined average time, wherein the breath pressure threshold is set to an active mode breath pressure threshold if the average time is less than a predefined time, and wherein the breath pressure threshold is set to a sleep mode breath pressure threshold if the average time is greater than a predefined time, wherein the sleep mode breath pressure threshold is lower than the active mode breath pressure threshold;measuring the time since the penultimate breath and the time since the last breath when in sleep mode; andautomatically providing oxygen enriched gas to the user if the sum of the time since the penultimate breath plus the time since the last breath is greater than a function of the determined average breathing time.2. The method of claim 1 , wherein the predefined time is between about 8 seconds and about 12 seconds.3. The method of claim 1 , wherein the function of the determined average breathing time is a ...

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Номер записи: 94

10-06-2021 дата публикации

RESPIRATORY INTERFACE

Номер: US20210170132A1

Автор: Collazo Louis Javier

Принадлежит: INNOMED HEALTHSCIENCE, INC.

Embodiments disclosed herein relate to respiratory interfaces for use in treating various respiratory issues including, but not limited to, sleep disorder breathing (e.g. snoring, sleep apnea), and in other forms of assisted and unassisted respiration. Embodiments disclosed herein further relate to nasal prongs, flanges and valves for use with respiratory interfaces. Embodiments disclosed herein further relate to evaluating patient compliance with a respiratory interface and harvesting energy for the respiratory. 1. A respiratory interface for the treatment of breathing problems configured to be in flow communication with at least one of a user's nostrils , the respiratory interface comprising:at least one body with a gas passageway, wherein the at least one body has a sealing portion that is configured to contact the user's nose, a distal end configured to allow gas to enter the at least one body and a proximal end configured to allow gas to exit the at least one body into the at least one nostril of the user during inhalation, wherein the proximal end is configured to allow gas to enter the at least one body from the at least one nostril of the user and the distal end is configured to allow gas to exit the at least one body during exhalation;at least one nasal aperture at the proximal end of the at least one body; andat least one element for adjusting the back pressure generated by the device during use, wherein the respiratory interface is not connected to a gas supply during use for treatment, wherein the respiratory interface is configured to resist flow more during exhalation than during inhalation during use.2. The respiratory interface of claim 1 , wherein the at least one element is a valve.3. The respiratory interface of claim 2 , wherein the valve is removable.4. The respiratory interface of claim 2 , wherein the valve is adjustable.5. The respiratory interface of claim 1 , wherein the at least one element is a bleed port.6. The respiratory interface of ...

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Номер записи: 95

08-09-2022 дата публикации

Mixture entrainment device

Номер: US20220282739A1

Автор: Alex Harrison, David Alan Plummer

Принадлежит: Honeywell International Inc

An example injector includes a first conduit defining a first flow path including a first choke for a first fluid and a second conduit defining a second flow path including a second choke for a second fluid. The second choke is defined by a converging region upstream and a diverging region downstream of the second choke. The example injector further includes a mixing region after both the diverging region of the second flow path and the first choke and configured to receive the first fluid the second fluid, and an outlet configured to allow the first fluid and the second fluid to exit the mixing region. The first and second chokes are configured to allow a constant mass flow of the first and second fluids, respectively, to flow into the mixing region independent of a pressure at the outlet.

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Номер записи: 96

25-05-2017 дата публикации

MAMMALIAN HEAD COOLING SYSTEM AND METHOD

Номер: US20170143538A1

Автор: FAZEL BAKHSHESHI Mohammad, KEENLISIDE Lynn, LEE Ting-Yim

Принадлежит:

Described herein is a head cooling system comprising: a source of compressed breathable gas; a vortex tube comprising an inlet, a hot gas outlet and a cold gas outlet, the inlet operably connected to the source of compressed breathable gas; and an interface for delivering cooled gas to a nasopharyngeal cavity in fluid communication with the cold gas outlet. The head cooling system may be used in a method to reduce neurodegeneration in a subject, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease. The head cooling system may also be used in a method to prophylactically protect a subject at risk of neurodegeneration, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease. 116.-. (canceled)17. A head cooling system comprising:a source of compressed breathable gas;a vortex tube comprising an inlet, a hot gas outlet and a cold gas outlet, the inlet operably connected to the source of compressed breathable gas;an interface device, for delivering cooled gas to a nasopharyngeal cavity, in fluid communication with the cold gas outlet; anda bladder in fluid communication with the hot gas outlet, the bladder capturing at least a portion of gas flowing from the hot gas outlet, and the bladder sized and shaped to provide an exterior surface to contact a body region located between a neck and a pelvis.1849.-. (canceled)50. A head cooling kit comprising:a vortex tube comprising an inlet, a hot gas outlet and a cold gas outlet;an interface device, for delivering cooled gas to a nasopharyngeal cavity, in fluid communication with the cold gas outlet;instructions for operably connecting the inlet to a source of compressed breathable gas and securing the interface device to a mammal; anda bladder in fluid communication with the hot gas outlet, the bladder capturing at least a portion of gas flowing from the hot gas outlet, and the bladder sized and shaped to provide an exterior ...

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Номер записи: 97

16-05-2019 дата публикации

OXYGEN GENERATOR FOR RESPIRATION-SYNCHRONIZED OXYGEN SUPPLY

Номер: US20190143061A1

Автор: Li Ming, LV Heqi

Принадлежит:

An oxygen generator for respiration-synchronized oxygen supply is provided. An ultrasonic gas sensor is used in the oxygen generator to act as a detection element for detecting human inhalation or respiration. On the basis of data corresponding to the human inhalation detected by the ultrasonic gas sensor, a control unit makes an oxygen generating unit supply oxygen to a human body through an oxygen delivery pipeline only when the human body inhales, and not supply the oxygen to the human body at the rest of time, thereby realizing respiration-synchronized oxygen supply. The respiration-synchronized oxygen supply by the oxygen generator is realized at low cost with simple and convenient control, thereby greatly reducing the cost, volume, weight, energy consumption and noise of the oxygen generator and increasing portability. 1. An oxygen generator for respiration-synchronized oxygen supply , comprising a control unit for controlling operation of the oxygen generator , an oxygen generating unit , an oxygen supply unit for delivering oxygen provided by the oxygen generating unit to a human body , a detection element for detecting human inhalation or respiration , and an airflow forming device wherein the oxygen supply unit comprises an oxygen delivery pipeline which is capable of communicating with a human respiratory organ and an oxygen supply valve disposed on the oxygen delivery pipeline , an ultrasonic gas sensor is used as the detection element for detecting human inhalation or respiration; the airflow forming device is configured to form an airflow at least corresponding to human inhalation in the ultrasonic gas sensor during human respiration , so that the ultrasonic gas sensor is enabled to detect at least the human inhalation; and during operation , according to data or signals corresponding to the human inhalation or respiration detected by the ultrasonic gas sensor , the oxygen supply unit is configured to supply oxygen to the human body through the oxygen ...

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Номер записи: 98

07-05-2020 дата публикации

Systems and Methods for Ambulatory Generation of Nitric Oxide

Номер: US20200139072A1

Автор: Apollonio Benjamin, Ferencz Andrew, HALL Gregory W., Heirtzler Frank, Scholz Wolfgang, Zapol David G.

Принадлежит:

Systems and methods are provided for portable and compact nitric oxide (NO) generation that can be embedded into other therapeutic devices or used alone. In some embodiments, an ambulatory NO generation system can be comprised of a controller and disposable cartridge. The cartridge can contain filters and scavengers for preparing the gas used for NO generation and for scrubbing output gases prior to patient inhalation. The system can utilize an oxygen concentrator to increase nitric oxide production and compliment oxygen generator activity as an independent device. The system can also include a high voltage electrode assembly that is easily assembled and installed. Various nitric oxide delivery methods are provided, including the use of a nasal cannula. 1. A portable nitric oxide (NO) generation system comprising:a housing configured to be portable;a reactant gas flow path configured to provide a reactant gas to one or more plasma chambers;one or more electrodes located in the one or more plasma chambers configured to generate a product gas containing nitric oxide using a flow of the reactant gas through the one or more plasma chambers;a controller configured to regulate the amount of nitric oxide generated in the reactant gas; and{'sub': '2', 'one or more scrubber paths configured to remove NOfrom the product gas generated by the one or more plasma chambers;'}wherein the portable NO generation system can be integrated with a device selected from a group consisting of a ventilator, a defibrillator, a ventricular assist device (VAD), a Continuous Positive Airway Pressure (CPAP) machine, a Bilevel Positive Airway Pressure (BiPAP) machine, a non-invasive positive pressure ventilator (NIPPV), a nasal cannula application, a nebulizer, an extracorporeal membrane oxygenation (ECMO), a bypass system, an automated CPR system, an oxygen delivery system, an oxygen concentrator, an oxygen generation system, and an automated external defibrillator AED.2. The portable nitric ...

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Номер записи: 99

17-06-2021 дата публикации

MEDICAL DEVICE FOR OLFACTORY STIMULATION

Номер: US20210178096A1

Автор: THEVENET Marc, VIRET Patricia

Принадлежит:

The invention relates to a device for olfactory stimulation of a patient with a plurality of scents, said device comprising: —a source () of a carrier gas (G); —a plurality of scent odorization circuits, each odorization circuit () comprising: —a container () containing an odorous volatile substance (V), —a container inlet line (), provided with a container inlet valve (), connecting an inlet () of said container with said source of carrier gas, and —a container outlet line (), provided with a container outlet valve (), connecting an outlet () of said container with an exit line (); —a control unit (), configured to control said container inlet valve and container outlet valve according to a medical protocol. 1. Device for olfactory stimulation of a patient with a plurality of scents , said device comprising:a chamber in which said patient may stay, a mattress being provided in said chamber,a source of a carrier gas; a container containing an odorous volatile substance,', 'a container inlet line, provided with a container inlet valve, connecting an inlet of said container with said source of carrier gas, and', 'a container outlet line, provided with a container outlet valve, connecting an outlet of said container with an exit line;, 'a plurality of scent odorization circuits, each odorization circuit comprisinga control unit, configured to control said container inlet valve and container outlet valve according to a medical protocol.2. Device according to claim 1 , said device further comprising a cleaning circuit to extract gas located in the odorization circuits downstream their respective container outlet valves.3. Device according to claim 1 , in which the carrier gas is a medical gas.4. Device according to claim 1 , in which the source of carrier gas is configured to provide a flow greater than 300 ml/min and less than 500 ml/min through any of said containers.5. Device according to claim 1 , in which the containers have a shape of a “U” and contain a substrate ...

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Номер записи: 100