СПОСОБ И УСТРОЙСТВО ДЛЯ ИСКУССТВЕННОЙ ВЕНТИЛЯЦИИ ЛЕГКИХ

Группа изобретений относится к медицинской технике, а именно к устройству для неотложной искусственной вентиляции легких пациента и способу управления устройством искусственной вентиляции легких для оказания неотложной помощи пациенту. Устройство содержит основной аппарат для предоставления дыхательного газа для искусственной вентиляции легких пациента. Устройство включает контактное устройство для соединения с пациентом, дыхание которого должно поддерживаться искусственным путем. Контактное устройство соединено с основным аппаратом таким образом, что дыхательный газ может течь между основным устройством и контактным устройством. В устройстве может подаваться добавка к дыхательному газу. Подвод добавки расположен таким образом, что обеспечивается возможность задания подачи добавки к дыхательному газу в период экспирации для заполнения трубопроводов и шлангов основного аппарата и дыхательного шланга. Подача добавки к дыхательному газу осуществляется непосредственно в контактных устройствах ...

УСТРОЙСТВО ДЛЯ ПОДАЧИ ПОСТОЯННОГО КОЛИЧЕСТВА АЭРОЗОЛЯ

Группа изобретений относится к медицинской технике. Устройство для подачи аэрозоля, полученного из способного к аэрозолизации материала, содержит блок аэрозолизации, через который проходят импульсы давления газа-носителя, резервуар, содержащий способный к аэрозолизации материал и соединенный с блоком аэрозолизации с возможностью подачи в него способного к аэрозолизации материала, увлекаемого газом-носителем, клапан подачи материала, представляющий собой клапан типа «утиный нос», расположенный между резервуаром и блоком аэрозолизации и выполненный с возможностью: открытия в направлении блока аэрозолизации, открытия или закрытия при возникновении перепада давления между резервуаром и блоком аэрозолизации и подачи, в открытом положении, способного к аэрозолизации материала в блок аэрозолизации. Модуль управления содержит элемент обеспечения приложения усилия, который имеет возможность обеспечивать создание механического усилия, прикладываемого к клапану подачи материала, и влиять путем приложения ...

РЕВЕРСИРУЮЩИЙ ПОТОК ГАЗА ЭЛЕМЕНТ С БАЙПАСОМ И СПОСОБ УПРАВЛЕНИЯ ЭКСПИРАЦИЕЙ ПАЦИЕНТА

Группа изобретений относится к медицинской технике. Реверсирующий поток газа элемент для использования системы подачи газа под избыточным давлением, прежде всего инспираторных газов, для селективного создания газового потока от или к линейному коннектору, который, прежде всего, может быть соединен с или вставлен в дыхательные пути пациента, выполнен в виде основного патрубка, содержащего по меньшей мере область притока, область потока, область сопла и смесительную область и, кроме того, отводящий патрубок, причем область притока соединяет коннектор подачи давления для подсоединения к системе подачи газа по меньшей мере с одним закрываемым выпускным отверстием, расположенным в смесительной области, а отводящий патрубок соединяет область сопла основного патрубка с линейным коннектором, причем сопло, прежде всего впрыскивающее сопло, выполнено и расположено в области сопла таким образом, что может создаваться газовый поток в отводящем патрубке, текущий вдоль второго протока от линейного коннектора ...

УСТРОЙСТВО ДЛЯ НАЗАЛЬНОЙ ДОСТАВКИ ЛЕКАРСТВЕННЫХ СРЕДСТВ

Группа изобретений относится к медицине и медицинской технике и может быть использована для доставки композиции в обонятельную область назальной полости. Предложено устройство, содержащее контейнер, диффузор, камеру для композиции и сопло. При этом контейнер вмещает пропеллент. Диффузор сообщается и с контейнером, и с камерой для композиции. Сопло сообщается с камерой для композиции. Предложен способ с использованием этого устройства для доставки композиции в обонятельную область назальной полости. Изобретения обеспечивают эффективное введение композиции в обонятельную область и соответственно её доставку через гематоэнцефалический барьер за счёт усовершенствования механизма доставки большей части распылённого лекарственного препарата в верхнюю часть назальной полости для увеличения экспозиции в обонятельном эпителии. 2 н. и 31 з.п. ф-лы, 25 ил., 4 табл., 5 пр.

СИСТЕМА И СПОСОБ ДЛЯ ОГРАНИЧЕНИЯ ПОТОКА И/ИЛИ КОМПЕНСАЦИИ ДАВЛЕНИЯ В ТЕЧЕНИЕ РЕСПИРАТОРНОЙ ТЕРАПИИ ПО МЕТОДУ ОГРАНИЧЕННОГО ПОТОКА

Изобретение относится к медицинской технике. Система поддержки давления выполнена с возможностью доставки дыхательного газа в дыхательные пути пациента и содержит генератор давления, соединенный по текучей среде с интерфейсом пациента, датчики, выполненные с возможностью генерирования сигналов, передающих информацию, связанную с параметрами находящегося потока дыхательного газа, и процессоры, сконфигурированные с возможностью приема информации датчиков и исполнения модулей компьютерной программы. Модуль оценивает значение текущей утечки, которое является мгновенной индикацией величины утечки. Модуль управления управляет работой генератора давления, чтобы генерировать поток дыхательного газа согласно режиму терапии по методу ограниченного потока, который предписывает терапевтический уровень для первого газового параметра внутри или вблизи дыхательных путей пациента. Модуль компенсации определяет величину компенсации для регулировки первого газового параметра, чтобы компенсировать дыхательное ...

ИНГАЛЯТОР С РЕГУЛИРОВАНИЕМ ПОТОКА

Hygenic condition determining method for e.g. cable-bound patient near breath stream sensor, involves comparing temperature events with comparison values, so that indication, output and/or alarm are caused during exceedence of values

The method involves storing temperature events of an additional part (1) e.g. cable-bound patient near breath stream sensor, corresponding to a temperature exceedence of a given temperature with the corresponding times. The stored temperature events with the corresponding times are compared with comparison values for temperature and time, so that an indication, output and/or an alarm at a medical basic equipment (3) e.g. anaesthesia equipment, are caused during exceedence of the comparsion value of the temperature for a given total time or for a given number of the temperature events. An independent claim is also included for a device for executing a method for determining a hygenic condition of an additional part.

An apparatus for providing controlled flow of inhalation-air

VALVE

A gas flow controller and a valve pin for a gas flow controller

Improvements in or relating to patient ventilators

The present invention relates to a delivery tube array which is used to connect a patient to a lung ventilator. A problem arising in the use of such ventilators is that exhaled air cannot be exhausted directly to the atmosphere since a normal outlet valve would also serve to exhaust air delivered on the compression stroke of the ventilator. The invention overcomes this problem by the introduction into a delivery tube array of a relief valve 14, a non-return valve 12 and a bleed-pipe 17 which connects the relief valve to a point up-stream of the non-return valve. Such an arrangement ensures that the relief valve opens only when the pressure within the patient's lungs is greater than the pressure upstream of the non-return valve. ...

A gas flow controller and a valve pin for a gas flow controller

Breathing bag, system comprising a breathing bag and a dispensing valve unit, closed-circuit respirator as well as process for mounting a system comprising

Breath flow indicator and method of use

A user interface and system for supplying gases to an airway

Ventilator

Fluid mixing apparatus

Synthethic apelin mimetics for the treatment of heart failure

Synthethic apelin mimetics for the treatment of heart failure

Synthethic apelin mimetics for the treatment of heart failure

ADJUSTABLE VALVE AND INHALATION DEVICE

PORTABLE STORAGE SYSTEM FOR UNDER PRESSURE STANDING LIQUIDS

Wearable waterproof asthma device

Waterproof asthma wearable device that attaches to the users arm to provide them with adequate amounts of medicine when required in sporting activities such as surfing. It comprises a wearable armband with a delivery unit that can receive an existing Ventolin inhaler canister. The device seals the Ventolin canister inside the main body, and by rotating the mouthpiece a watertight valve system opens, allowing a dose to be administered. The device is made using 3D printing.

Systems and methods for intelligent gas source management and/or systems and methods for delivery of therapeutic gas and/or enhanced performance verification for therapeutic gas delivery

SYSTEMS AND METHODS FOR INTELLIGENT GAS SOURCE MANAGEMENT AND/OR SYSTEMS AND METHODS FOR DELIVERY OF THERAPEUTIC GAS AND/OR ENHANCED PERFORMANCE VERIFICATION FOR THERAPEUTIC GAS DELIVERY An electronically controlled gas blending device, comprising: a flow control channel in fluid communication with a therapeutic gas supply, wherein the flow control channel comprises: at least one secondary subsystem flow control valve, wherein the at least one secondary subsystem flow control valve is configured to be in communication over a communication path with a therapeutic gas delivery system controller; and two or more secondary subsystem flow sensors, wherein the two or more secondary subsystem flow sensors are in fluid communication with the at least one secondary subsystem flow control valve, and the two or more secondary subsystem flow sensors are configured to be in communication over a communication path with the therapeutic gas delivery system controller; one or more inlets configured to connect ...

Ventilation mask

Abstract A nasal ventilation mask for providing oxygen to a patient either during emergency and/or elective airway management. The body of the mask includes an interior that forms a nasal cavity to cover a patient's nose while leaving the patient's mouth uncovered, a gas channel and an exterior opening. The nasal ventilation mask includes an 02 port for introducing oxygen into the nasal cavity, a ventilation port for directing a gas toward or away from the nasal cavity; and a CO2 port to direct a gas expelled orally by the wearer. A plurality of tabs or eyelets are used for strapping the mask to the patient's head or for tying the mask down to the operating table. A gas hood is located under the nose region of the mask to enhance the collection of anesthetic gases around the patient's mouth. WO 2016/028522 PCT/US2015/044341 Figure l a Ventiliation Port 02 Port O 12 Supply Por Oral Opening 22 Gad for Gas \oo 24'cavenger & 24 CO2Monitoring Port 14 Gas Scavenger & C02Monitoring Port 16 -Gas ...

Systems for treating pulmonary infections

SYSTEMS FOR TREATING PULMONARY INFECTIONS Provided herein are systems for treating a subject with a pulmonary infection, for example, a nontuberculous mycobacterial pulmonary infection, a Burkholderia pulmonary infection, a pulmonary infection associated with bronchiectasis, or a Pseudomonas pulmonary infection. The system includes a pharmaceutical formulation comprising a liposomal aminoglycoside dispersion, and the lipid component of the liposomes consist essentially of electrically neutral lipids. The system also includes a nebulizer which generates an aerosol of the pharmaceutical formulation at a rate greater than about 0.53 gram per minute. The aerosol is delivered to the subject via inhalation for the treatment of the pulmonary infection.

Pressure safety device for bag valve mask

A pressure safety device is used with a bag valve mask (BVM) for preventing over-pressurization. The BVM includes a bag assembly having a bag connector for detachably mating to a mask connector on a patient mask. The pressure safety device has a housing with a bag port, a mask fitting, and a flow path from the bag port to the mask fitting. The bag port detachably connects to the bag connector on the BVM, and the mask fitting detachably connects to the mask connector on the BVM. The pressure safety device includes an automatic flow reduction valve located on the flow path in the housing and impedes flow when pressure on a bag connector side of the valve exceeds a maximum threshold value.

Resuscitators

POPER\JPN\RI117634 div.doc-2/1'/2(0N A gas-powered resuscitator is operable either in a manual mode or an automatic mode. The resuscitator includes an oscillatory timing valve having an outlet connected to a bi-stable valve, the operation of which is piloted by a manual valve. The outlet of the bi-stable valve connects to the outlet of the resuscitator via a rotatable control and a patient valve. The outlet of the bi-stable valve also connects to the control inlet of the timing valve. The manual valve has a button that can be pushed down manually in the manual mode or can be held down in the automatic mode by rotating a locking ring. The maximum duration of cycles is limited by operation of the timing valve, whether the resuscitator is operated manually or automatically.

Device for providing a constant amount of aerosol

The invention relates to a device (10) for providing an aerosol from an aerosolizable material, the device comprising an aerosolization unit (300) through which pressure pulses of a carrier gas (60) are passed; a reservoir (100) comprising the aerosolizable material and which provides the aerosolizable material to the aerosolization unit (300) where the aerosolizable material is entrained by the carrier gas (60); a material providing valve (210) located between the reservoir (100) and the aerosolization unit (300) which opens in direction of the aerosolization unit (300) and which is opened and closed by a pressure difference between the reservoir (100) and the aerosolization unit (300) and which provides, in an open state, the aerosolizable material to the aerosolization unit (300).

Device for providing a constant amount of aerosol

The invention relates to a device (10) for providing an aerosol from an aerosolizable material, the device comprising an aerosolization unit (300) through which pressure pulses of a carrier gas (60) are passed; a reservoir (100) comprising the aerosolizable material and which provides the aerosolizable material to the aerosolization unit (300) where the aerosolizable material is entrained by the carrier gas (60); a material providing valve (210) located between the reservoir (100) and the aerosolization unit (300) which opens in direction of the aerosolization unit (300) and which is opened and closed by a pressure difference between the reservoir (100) and the aerosolization unit (300) and which provides, in an open state, the aerosolizable material to the aerosolization unit (300).

Respiratory humidifier communication systems and methods

A respiratory humidification system includes a humidifier that is capable of electronic communication with one or more other components of the system thereby permitting transfer of data or control signals between the humidifier and other components of the system. In some systems, a flow generator, such as a ventilator, is provided to supply a flow of breathing gas. The humidifier and the flow generator are capable of electronic communication with one another. In some arrangements, an operating mode or parameter of the humidifier to be set or confirmed by the flow generator, either automatically or manually through a user interface of the flow generator. The humidifier can also utilize data provided by the flow generator or other system component, such as an incubator, to set or confirm an operating mode or parameter of the humidifier. In some arrangements, a user interface of the humidifier can display data from another system component, such as a nebulizer or pulse oximeter.

Portable control device for regulating a continous oxygen flow

A portable control device (10) for regulating a continuous oxygen flow to a user from an oxygen source, comprising : an inlet (11), to which the oxygen source may be fluidly connected; an outlet (12), to which a breathing device may be fluidly connected; a valve arrangement (20) fluidly connected to said inlet and to said outlet, said valve arrangement being adjustable between a maximum flow state corresponding to a maximum continuous flow of oxygen from the inlet to the outlet, and a minimum flow state corresponding to a minimum continuous flow of oxygen; and an actuator (13) movable between a maximum and a minimum position and being mechanically connected to the valve arrangement so that when said actuator is in the maximum position said valve arrangement is in the maximum flow state and when said actuator is in said minimum position said valve arrangement is in said minimum flow state.

RESUSCITATOR VALVE

Expectoration system

An expectoration system comprises an expectoration pipe (20) comprising a throttling device (21) and a balloon valve (19); an expectoration machine (1), comprising a main pipe assembly (15), an air pump assembly (2) and a control system (8). The main pipe assembly (15) comprises a fan (16) and a shutter valve (17). The air pump assembly (2) comprises a first air pump (6) and a second air pump (3). The control system (8) comprises a first sensor (12) for measuring an air pressure of the throttling device (21), and comprises a microcomputer control unit. The microcomputer control unit determines a patient being in an exhaling or inhaling stage by means of an air pressure difference detected by the first sensor (12); during expectoration, the first air pump (6) supplies air to the balloon valve (19) to disconnect a respirator air path, the fan (16) and shutter valve (17) are opened to control the second air pump (3) to supply air to the throttling device (21), and a respirator does not stop ...

Spontaneous breathing apparatus and method

THERAPEUTIC DEVICE FOR TREATMENT OF CONDITIONS RELATING TO THE SINUSES, NASAL CAVITIES, EAR, NOSE AND THROAT

A therapeutic device tor treating conditions of a user's nasal cavities, sinuses, and/or ear canals includes a housing which the user may hold to apply the therapeutic device to the user, the housing including an inlet that, allows air to enter the therapeutic device. An acoustic vibrator located within the housing provides an acoustic vibration to the user, and a power supply located within the housing provides power to the acoustic vibrator. A mask is connected to the housing and includes a nasal interface that is appliable around the nose of the user. A valve of the mask opens to allow the user to breathe through the inlet and closes to prevent the user from exhaling through the inlet. The mask further includes a diaphragm and a nasal cavity in which a user's nostrils are located when the nasal interface is applied to the user.

PRESSURE SAFETY DEVICE FOR BAG VALVE MASK

A pressure safety device is used with a bag valve mask (BVM) for preventing over-pressurization. The BVM includes a bag assembly having a bag connector for detachably mating to a mask connector on a patient mask. The pressure safety device has a housing with a bag port, a mask fitting, and a flow path from the bag port to the mask fitting. The bag port detachably connects to the bag connector on the BVM, and the mask fitting detachably connects to the mask connector on the BVM. The pressure safety device includes an automatic flow reduction valve located on the flow path in the housing and impedes flow when pressure on a bag connector side of the valve exceeds a maximum threshold value.

DISPOSITIF DE FOURNITURE DE GAZ THERAPEUTIQUE EN PARTICULIER DE NO OU DE N2O, A UN PATIENT

CONTROLLING OXYGEN CONCENTRATOR TIMING CYCLE BASED ON FLOW RATE OF OXYGEN OUTPUT

A control circuit of an oxygen concentrator maintains pressure within a compressor of the oxygen concentrator. The control circuit includes a microprocessor that controls functioning of a controller based on two or more of: a user-adjustable flow rate of oxygen delivered by the oxygen concentrator to a user, an ambient temperature, and an ambient pressure. The functioning of the controller further controls the adsorption of various gases by sieve beds of the oxygen concentrator to produce oxygen enriched gas.

DUAL PRESSURE RESPIRATORY ASSISTANCE DEVICE

A dual pressure respiratory assistance device including a gas source which supplies a flow of gas into an air tube having a bubbler branch and a patient branch. A first tube that is connected to the bubbler branch is at least partially submerged in a fluid. An oscillatory relief valve cycles between first and second configurations. The relief valve includes an oscillating member which captures gas released through at least one hole in the first tube when the oscillating member is in a first position. The gas in the oscillating member causes the oscillating member to rise to a second position, wherein gas is released from the oscillating member and the at least one hole is blocked when the oscillating member reaches the second position.

BREATHING-GAS DELIVERY AND SHARING SYSTEM AND METHOD

... ²A device, system, and method for isolating a ventilator from one or more ²patients in ²which the delivery conditions of gas delivered to an isolation device from a ²ventilator may ²drive the delivery of breathing-gas delivered to one or more patients, the ²breathing-gas ²having the same or different delivery conditions. In one embodiment, an ²isolation device ²may have a housing and a movable partition. The movable partition may be ²joined to the ²housing, The movable partition may have a patient side on a first side of the ²partition and an ²actuating side on a second side of the partition. The isolation device may ²include an inlet ²pressure regulator on the actuating side and/or an exhaust pressure regulator ²on the patient ²side. These regulators may alter the delivery conditions (including, but not ²limited to, ²pressure and volume) of breathing-gas delivered to a patient.² ...

METHODS FOR COMPENSATING LONG TERM SENSITIVITY DRIFT OF ELECTROCHEMICAL GAS SENSORS EXPOSED TO NITRIC OXIDE

Described are systems and methods for compensating long term sensitivity drift of catalytic type electrochemical gas sensors used in systems for delivering therapeutic nitric oxide (NO) gas to a patient by compensating for drift that may be specific to the sensors atypical use in systems for delivering therapeutic nitric oxide gas to LAa patient. In at least some instances, the long term sensitivity drift of catalytic type electrochemical gas sensors can be addressed using calibration schedules, which can factor in the absolute change in set dose of NO being delivered to the patient that can drive one or more baseline calibrations. The calibration schedules can be used reduce the amount of times the sensor goes offline. Systems and methods described may factor in in actions occurring at the delivery system and/or aspects of the surrounding environment, prior to performing a baseline calibration, and may postpone the calibration and/or rejected using the sensor's output for the calibration ...

PRESSURE RELIEF DEVICE AND SYSTEM

A pressure relief device comprising a valve configured to resiliently deform in response to a predetermined pressure; and a sound dampener configured to dampen a sound generated by the valve when the valve resiliently deforms in response to said predetermined pressure.

APPARATUS FOR PREVENTING OVER INFLATION OF THE RETENTION BALLOON IN MEDICAL CATHETERS AND AIRWAY DEVICES

The body has a fluid inlet port for receiving pressurized fluid and a fluid outlet port connected to the retention balloon. A first passage connects the fluid inlet port and the fluid outlet port, A second passage in the body is connected to the balloon fluid return path and is at the pressure of the retention balloon. A. valve prevents fluid flow through the first passage when actuated. The valve includes a pressure-responsive member movable to a position to obstruct fluid flow in response to fluid pressure in the second passage exceeding the predetermined level. Flexible means such as a membrane defines a normally open portion of the first fluid passage, which is closed by the moveable means bearing on the membrane when pressure exceeding the predetermined level actuates the valve.

NASAL CANNULA WITH PRESSURE MONITORING AND PRESSURE RELIEF

A nasal cannula assembly includes a breathing gas supply lumen assembly splitting into a first inspiratory gas lumen and a second inspiratory gas lumen. An inspiratory gas nasal end portion is in fluid communication with the first inspiratory gas lumen and a second inspiratory gas lumen. The inspiratory gas nasal end portion has a pair of nasal prongs extending outwardly therefrom. An expiratory gas assembly splits into a first expiratory gas lumen and a second expiratory gas lumen. An expiratory gas nasal end portion is in fluid communication with the first expiratory gas lumen and a second expiratory gas lumen. A passage is disposed across the inspiratory nasal end portion from the pair of nasal prongs. The passage provides fluid communication between the inspiratory nasal end portion and the expiratory nasal end portion.

VALVE

... 11. (Figs 1 \A 5) "A VALVE" Axial displacement between two components (10,17) of a valve occurs as a result of relative rotation through the cooperation of helical ramps (29,31). Preferably another pair of helical ramps (30,38) is provided concentric with the first but angularly offset 180.degree. with the result that when the components (10,17) are at maximum axial separation the residual contact between the ramps of each pair (shaded areas in Fig. 5e) will be on opposite sides of the axis x of rotation and prolongation, thus preventing tilting of the component (17) out of axial alignment with the component (10). In other constructions more than two pairs of ramps are employed. In the embodiment illustrated the ramp means of the invention replaces a screw-thread to provide adjustment of the loading of a valve spring and permits the use of more economical manufacturing and assembly techniques.

SYNTHETIC APELIN MIMETICS FOR THE TREATMENT OF HEART FAILURE

SYNTHETIC MIMETICS APELINA FOR TREATMENT OF CARDIAC INSUFFICIENCY

BYPASS DEVICE FOR ABSORPTION TANK

PNEUMATIC VALVE OF REGULATION.

VOLUMETRIC APPARATUS Of RESPIRATORY ASSISTANCE PROVIDED With a BLOC-SOUPAPES IMPROVES

VENTILATION APPARATUS

Respiratory gas controller for breathing mask - uses fluidic impact amplifier in which disturbance of laminar jet controls inlet supply valve

Ventilator for generating inspiratory gas flow to patient, has pneumatic detection unit connected to pneumatic actuators and detecting inspiratory effort of patient for allowing generation of anticipated inspiratory flow

L'invention concerne un appareil de ventilation apte à générer périodiquement pour un patient un flux de gaz inspiratoire à un débit et une pression déterminés et selon une fréquence déterminée, comportant des moyens (7) de détection d'un effort inspiratoire du patient pour permettre, en cas de détection d'un effort inspiratoire, la génération d'un flux inspiratoire anticipé par rapport à un flux inspiratoire prévu selon la fréquence déterminée, caractérisé en ce que les moyens (7) de détection d'un effort sont du type pneumatique. Application aux appareils d'assistance respiratoire médicaux.

인공호흡 마스크

... 비강으로 또는 구강으로 방출되는 호기-말 CO2를 모니터링 하기 위하여 마스크 내로 통합되는 호기-말 CO2 배출을 모니터링 하는 분리 포트들을 가지는 비강 인공호흡 마스크가 개시된다. 또한, 피해자의 입 및/또는 코를 덮는 모양인 바디를 가지는 입에서-코 및/또는 입에서-입 소생을 위한 CPR 마스크가 개시되고, 상기 마스크는 피해자로 이송되는 적어도 부분적은 구조자의 날숨 CO2를 제거하기 위한 CO2 흡수기를 포함한다.

객담 시스템

... 객담 시스템에 있어서, 해당 객담 시스템은 스로틀 장치(21) 및 구낭 밸브(19)를 포함하는 객담 관로(20)와, 객담기(1)를 포함하며, 객담기(1)는 메인 관로 어셈블리(15), 에어 펌프 어셈블리(2) 및 제어 시스템(8)를 포함하고, 메인 관로 어셈블리(15)는 송풍기(16)와 셔터 밸브(17)를 포함하고; 에어 펌프 어셈블리(2)는 제1 에어 펌프(6)와 제2 에어 펌프(3)를 포함하고; 제어 시스템(8)은 스로틀 장치(21) 부분의 기압을 측정하기 위한 제1 센서(12)와 마이크로 제어 유닛을 포함하고; 마이크로 제어 유닛은 제1 센서(12)로 검출한 기압 차를 기반으로 환자가 호기 단계 또는 흡기 단계에 처해 있는지를 판단하고, 객담을 진행할 때, 제1 에어 펌프(6)는 구낭 밸브(19)에 기체를 공급하여 호흡기 기체 회로를 차단시키고, 제2 에어 펌프(3)는 스로틀 장치(21)에 대해 기체 공급하도록 제어되며, 호흡기는 객담 기간에 작동을 멈추지 않는다. 본 발명에서 제출한 객담 시스템은 호흡기의 정상적인 작동에 영향을 미치지 않는다.

método e dispositivo respiratório de pressão de ar negativa, sistema que compreende o dito dispositivo, método de tratar apneia do sono, bem como uso do dispositivo ou sistema

Inhalation device for use in aerosol therapy

Ventilator for rapid response to respiratory disease conditions

The present invention relates generally to the field of ventilators, and, more specifically, to a ventilator system that addresses respiratory distress due to the onset of an epidemic or pandemic disease state. In particular, the present invention is a ventilator system that can be manufactured quickly with minimal skill requirements and employed rapidly in response to epidemic respiratory disease conditions.

INTERMITTENT DOSING OF NITRIC OXIDE GAS

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.

FLOWMETER BI-VALVE

The present disclosure describes a bi-valve for use with a flowmeter or other source of oxygen or other medical gas, that allows a medical practitioner to easily and quickly switch from delivering oxygen or other gas from the flowmeter or other gas source to a given mask or other device, to another mask or other device. This is accomplished far faster and easier than is done under current practice. Current practice results in the patient being off oxygen or other gas for a short, but very significant period of time, which poses a serious risk of desaturation in the patient. The bi-valve may include a casing, an inlet, and two outlets, with a knob for selecting which output the oxygen or other gas is to be delivered to. The device may be a very simple ball valve device, with the only moving parts being the knob and the ball.

System and method for circuits to allow CPAP to provide zero pressure

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.

Ventilator pressure oscillation filter

A ventilation air pressure oscillation mitigation device for a ventilator includes a housing defining an inlet and an outlet. The device includes a valve seat defining a primary opening and a plurality of secondary openings. A valve body is selectively positionable in a first position and a second position within the device. In the first position, substantially all of a first flow of ventilation air from the inlet to the outlet passes through the primary opening. When the valve body is in the second position, all of a second flow of ventilation air from the inlet to the outlet passes through the plurality of secondary openings. An actuator controls a position of the valve body.

Patient interface assembly for respiratory therapy

A patient interface assembly includes a housing that defines an inlet port and an outlet port. A jet pump receives pressurized gas flow from the inlet port and delivers the gas flow to the outlet port. A nebulizer is fluidly coupled to the outlet port and positioned to introduce medication into the gas flow and deliver medicated gas flow to a patient.

Subglottic suctioning system

A subglottic suctioning system with a tracheal tube having a ventilation lumen, a cuff inflation lumen, and a suction lumen are disclosed which may help reduce the incidence of ventilator associated (or acquired) pneumonia. The suction lumen communicates with the space in the trachea above the cuff where secretions accumulate. The suction lumen has a valve on the proximal end for connection to a source of vacuum. The valve is adapted to interrupt the supply of vacuum to the suction lumen to allow for the introduction of a rinsing fluid in its place and to automatically re-establish the connection to the source of vacuum upon completion of rinsing. The rinsing fluid aids in maintaining an open suction lumen and may include medicaments and mucolytic agents to enhance or promote healing or to alter the properties of the mucus to make removal easier. The user may easily and repeatedly alternate suction and rinsing fluid through the suction lumen, i.e., the user may pulse the line to loosen, ...

Bellows Bulb Occlusion Valve

A flow control device for blocking the flow of analgesic gas to the mask of an analgesic system includes a bellows-bulb at the distal end of the breathing circuit. The device can be easily operated by hand. By depressing the bellows when the mask is removed, gaseous pollution, such as nitrous oxide or other gas pollution, can be controlled while the system is purged.

GAS DELIVERY SYSTEM AND METHOD OF SANITIZING THE GAS FLOW PATH WITHIN A GAS DELIVERY SYSTEM

A gas delivery system (50) for delivering a flow of breathing gas to a patient (54) includes a blower assembly (100) structured to generate the flow of breathing gas. The blower assembly includes a gas flow path including an inlet manifold, an assembly (130) structured to adjust a pressure and/or flow rate of the flow of breathing gas, and an outlet manifold structured to be coupled to a patient circuit. The gas delivery system additionally includes a light system structured to generate sanitizing light and deliver the sanitizing light to one or more internal surfaces of at least one of the inlet manifold, the assembly and the outlet manifold for sanitizing the one or more internal surfaces.

INTEGRATION AND MODE SWITCHING FOR RESPIRATORY APPARATUS

Closed loop oxygen control

The present disclosure provides for a flow therapy apparatus that can implement one or more closed loop control systems to control the flow of gases of a flow therapy apparatus. The flow therapy apparatus can monitor blood oxygen saturation (SpO2) of a patient and control the fraction of oxygen delivered to the patient (FdO2). The flow therapy apparatus can automatically adjust the FdO2 in order to achieve a targeted SpO2 value for the patient.

Therapy delivery device

A connector system 60 for a ventilation system. Connector system 60 comprising: a first body 61 with a cavity, first body 61 comprising: a first port 62 fluidly connected to the cavity for connection to a conduit system; a second port 64 fluidly connected to first port 62 via the cavity for connection a first gas line 42, such as an exhaust, or air supply; a third port 66 for receiving a second gas line 46 from the conduit system, with second gas line 46 extending from first port 62 to third port 66 within the cavity, but is not in fluid communication with the cavity, the third port 66 includes a seal 67 preventing gas escaping from the cavity via third port 66 when the second gas line 46 is positioned therein; a fourth port 68 including a first removable closure 69, the fourth port 68 fluidly connects the cavity to the external environment when open; and a second body 70 for connection to the second gas line 46, the second body 70 including a second removable closure 75 for closing the ...

ANAESTHETIC APPARATUS AND A VALVE ASSEMBLY THEREFOR

Medical appliances

Fluid mixing apparatus

A fluid mixing apparatus such as a ventilator preferably comprises a pair of bellows 3, each drawing in and outputting a fluid - preferably air with respect to one of the bellows and oxygen with respect to the other - when driven by means of a press assembly 8, the output of the two bellows being mixed. Rotational movement of the bellows with respect to the press assembly adjusts the extent to which each of the bellows is contracted, allowing the ratio of fluids in the mixed fluid output to be varied (Fig 14-15). A pinch valve may be provided to selectively open and close an inlet and/or outlet to the bellows, the pinch valve providing a rotable cam (14, Fig 7) operating a pinch closure, preferably a longitudinal member (15, Fig 7) acting against a biasing force. Where both the inlet and outlet are provided with a pinch valve, both rotable cams may be mounted on a single rotable shaft (14, Fig 7). Hall effect sensors (42,43, Fig 9) may provide an indication of fluid pressure, the sensor ...

Closed loop oxygen control

Improvements in Anæsthetic Nasal Inhaling Apparatus.

... 23,510. Weller, F. W. Oct. 14. Inhalers.-A nasal inhaler for administering anµsthetics comprises a nose-piece a, Figs. 1 and 3, detachably connected to the valve chamber e by means of a socket a', through the lateral wall of which the gas passage of the nose-piece extends. The valve-chamber contains a cylindrical air and gas valve i, Fig. 3, divided into three chambers k, k<1>, k<2>, communicating with each other by flap valves w<1>, m<2>. An exhalation valve r, Fig. 1, serves as a handle for the main valve.

Improved face mask for the inhalation of atomised medicinal liquids

... 719,714. Medical respirators. SMITH, J. V. BRIGHT-. Sept. 24, 1953 [Nov. 26, 1951], No. 27725/51. Class 81(2) A mask for inhaling medicated mists has an inlet valve which is normally closed by gravity but which is opened, at each inhalation, by a diaphragm mounted in one wall of the mask. The diaphragm 3 bears on a roller 12 and, on reduction of internal pressure, lifts the valve 7 about its pivot 8 to admit the vapour through the inlet tube 4. An exhalation valve 13 is provided. Specification 721,458, [Group XXIX], is referred to.

A user interface and system for supplying gases to an airway

Breath flow indicator and method of use

Improvements in or relating to resuscitators

... 837,829. Respiratory appliances. GLOBE INDUSTRIES Inc. Sept. 3, 1957, No. 27830/57. Class 81 (2). An apparatus for inducing forced respiration comprises a pressure-actuated valve which automatically opens and closes the outlet from an ejector assembly, the valve being located in the opening through which the aspirator communicates with a chamber connected with the lungs. Air or oxygen is blown in through a tube 24, which encloses a nozzle directing a jet into an outlet tube 26 leading to atmosphere, so that air may be drawn out from the chamber 22 through the opening 30. This chamber 22 is connected through a duct, not shown, to the patient's lungs and thus the pressures in the lungs and in the chamber are the same. A flexible strip 46, pivoted on a screw 100, may be lowered into the position shown, so as to obstruct and seal the passage into the tube 26, as a result of which air, continuing to enter through the tube 24, is retained in the chamber 22 and lungs, increasing the pressure therein ...

Valve means for controlling the flow of inhalant gas to a patient

... 826,280. Respiratory apparatus. BRITISH OXYGEN CO. Ltd. March 17, 1958 [April 24, 1957], No. 13075/57. Class 81 (2). A valve assembly for breathing apparatus comprises gas inlet and outlet chambers 14, 15 communicating through a valve port 18, a pressure-responsive member 20 exposed to pressure in the inlet chamber 14 and to atmosphere and carrying a valve 40 movable either manually or according to the patient's demand to open the port 18 and close a vent or by pressure in the inlet chamber 14 to close the port 18 and open the vent. The inlet and outlet chambers 14, 15 are separated by a partition 13 with the valve port 18 and have inlet and outlet ports 16, 17 respectively. The valve 40 is carried by a valve stem 24 which is connected to and passes through a diaphragm 20. A knob 27 by which the valve port 18 may be opened manually is secured on the free end of the valve stem 24. The vent is formed by a tube 33 extending into the outlet chamber 15 coaxial with the valve stem 24 and passing ...

Closed loop oxygen control

Valve module and filter

Valve module and filter

An apparatus (10, fig.3a) for delivering a flow of gas, comprising; a housing (100, fig.3a) with a gases outlet (344, fig.3a) for delivering a flow of gas to a patient; at least one gases inlet 4033; a filter 1001 to filter gases received from the inlet 4033; a flow control valve 4003 arranged to receive gas from a first gases inlet 4033 of the at least one gases inlet; a valve manifold 4011 for receiving gas from the flow control valve and having a manifold gases outlet 4019 arranged to deliver gas from the flow control valve to the filter; and a valve carrier 4051 that substantially contains and supports the flow control valve and the valve manifold. Also disclosed is a valve module 4001 for an apparatus for delivering a flow of gas, comprising; a flow control valve 4003 ; a valve manifold 4011 for receiving gas from the flow control valve; and a valve carrier 4051 that substantially contains and supports the flow control valve and the valve manifold. Also disclosed is an apparatus with ...

GAS IDENTIFICATION SYSTEM AND VOLUMETRIC CORRECTING GAS DELIVERY SYSTEM

DEVICE TO HERZMASSAGE AND FOR ARTIFICIAL RESPIRATION.

ATOMIZER DEVICE.

GAS PRESSURE CONTROL VALVE

An interface apparatus for use with a mechanical ventilator and a percussive ventilator

A vent valve apparatus

Ventilation method and ventilation device

The present invention relates to a method for the ventilation of a living being (3), the respiration airflow (v) flowing into the living being (3) and out of the living being (3) being detected, it being ascertained from the detected respiration airflow (v) whether an inhalation phase or an exhalation phase is present, and the air pressure (p) in a respiratory organ of the living being (3) being regulated, characterized in that, upon recognition of an inhalation phase, the air pressure (p) in the respiratory organ is raised at the beginning of the inhalation phase and lowered again with progressing respiration cycle.

Ventilation mask

Disclosed is a nasal ventilation mask having separate ports to monitor end-tidal CO ...

Apparatus and method for improved assisted ventilation

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. NtN ...

Systems and methods for high velocity nasal insufflation

Systems, methods, and devices for humidifying a breathing gas are presented. The system includes a base unit, a vapor transfer unit, a nasal cannula, and a liquid container. The base unit includes a blower. The vapor transfer unit is external to the base unit and includes a gas passage, a liquid passage, a gas outlet, and a membrane separating the gas passage and the liquid passage. The membrane permits transfer of vapor into the gas passage from liquid in the liquid passage. The nasal cannula is coupled to the gas outlet. The liquid container is configured to reversibly mate with the base unit.

Systems for treating pulmonary infections

Provided herein are systems for treating a subject with a pulmonary infection, for example, a nontuberculous mycobacterial pulmonary infection, a Burkholderia pulmonary infection, a pulmonary infection associated with bronchiectasis, or a Pseudomonas pulmonary infection. The system includes a pharmaceutical formulation comprising a liposomal aminoglycoside dispersion, and the lipid component of the liposomes consist essentially of electrically neutral lipids. The system also includes a nebulizer which generates an aerosol of the pharmaceutical formulation at a rate greater than about 0.53 gram per minute. The aerosol is delivered to the subject via inhalation for the treatment of the pulmonary infection.

Manifold for respiratory device

A respiratory 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. The valve member is rotatably oscillated back and forth when the valve member is in the first position and when the valve member is in the second position so that oscillations in the positive pressure and negative pressure, respectively, are provided to the patient's airway.

Pressure relief device and system

A pressure relief device comprising a valve configured to resiliently deform in response to a predetermined pressure; and a sound dampener configured to dampen a sound generated by the valve when the valve resiliently deforms in response to said predetermined pressure.

NASAL INTERFACE APPARATUS WITH AIR ENTRAINMENT PORT OF ADJUSTABLE OPEN AREA

A nasal interface apparatus is provided for delivering a gas to a human via a gas supply tube and a pair of tubular nasal inserts. The apparatus includes a manifold hollow body defining an internal chamber, an inlet for fluid communication from the gas supply tube into the internal chamber, an outlet for fluid communication between the internal chamber and the pair of nasal inserts, and an air entrainment port for fluid communication between the internal chamber and a space external to the hollow body. The apparatus also includes a valve member movable relative to the hollow body for varying the size of the open area of the air entrainment port. The open area of the air entrainment port may be varied to regulate a pressure signal detected by a pulse-flow oxygen concentrator (POC).

VENTILATOR WITH INTEGRATED COUGH-ASSIST

A ventilator with an integrated cough assist for use with a patient circuit in fluid communication with a patient connection of a patient, and operable in a ventilation mode and in a cough-assist mode. The ventilator includes a user input for switching operation from ventilation mode to cough-assist mode without disconnecting the ventilator from the patient, and a controller operable in response to the user input and controlling operation of the ventilator in cough-assist mode to provide for at least one cough assist to the patient having an insufflation phase followed by an exsufflation phase. A cough-assist valve in a first state for the insufflation phase communicates a positive pressure to the ventilator connection and in a second state for the exsufflation phase communicates a negative pressure to the ventilator connection.

Apparatus for resuscitation

An application for a disposable support/resuscitation system is disclosed includes a pressurized gas inlet and a pressure relief device interfaced to the pressurized gas inlet. The pressure relief device has a first pressure relief valve that opens at a setable gas pressure and, optionally, has a second pressure relief valve that opens at a pre-determined maximum gas pressure. A manometer is interfaced to the pressure relief valve, a manually operated valve is interfaced to the manometer, and a patient interface port is interfaced with the manually operated valve. The manually operated valve selectively controls administration of the pressurized gas to the patient and both the manometer and the manually operated valve are in close proximity to the patient.

Ventilation mask with integrated piloted exhalation valve

In accordance with the present invention, there is provided a mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask of the present invention includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. The mask of the present invention may further include a heat and moisture exchanger (HME) which is integrated therein.

Apparatus and method for improved assisted ventilation

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.

Nasal delivary device

It is one object of the present invention to provide an air-intake actuated device adapted for delivering a substance to a nasal cavity of a subject, comprising: a. a container for containing said substance; b. a nosepiece extending from said device for placement in proximity to a nose of said subject. c. a valve mechanically connectable to said container, characterized by an ACTIVE CONFIGURATION and an INACTIVE CONFIGURATION; and, d. a trigger mechanism adapted to reconfigure said valve from said ACTIVE CONFIGURATION to said INACTIVE CONFIGURATION, and vice versa; wherein said trigger mechanism is activated by means of said subject intaking air through said mouthpiece; further wherein said trigger mechanism is adapted to reconfigure said valve from said INACTIVE CONFIGURATION to said ACTIVE CONFIGURATION for a predetermined period of time in response to said subject intake of air.

Methods, Systems and Devices for Non-Invasive Open Ventilation For Providing Ventilation Support

A system for providing ventilation support to a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle at the distal end of the gas delivery circuit; and at least one spontaneous respiration sensor for detecting respiration in communication with the control unit. The system may be open to ambient. The control unit may receive signals from the at least one spontaneous respiration sensor and determine gas delivery requirements. The ventilator may deliver gas at a velocity to entrain ambient air and increase lung volume or lung pressure above spontaneously breathing levels to assist in work of breathing, and deliver ventilation gas in a cyclical delivery pattern synchronized with a spontaneous breathing pattern.

Systems for treating pulmonary infections

Provided herein are systems for treating a subject with a pulmonary infection, for example, a nontuberculous mycobacterial pulmonary infection, a Burkholderia pulmonary infection, a pulmonary infection associated with bronchiectasis, or a Pseudomonas pulmonary infection. The system includes a pharmaceutical formulation comprising a liposomal aminoglycoside dispersion, and the lipid component of the liposomes consist essentially of electrically neutral lipids. The system also includes a nebulizer which generates an aerosol of the pharmaceutical formulation at a rate greater than about 0.53 gram per minute. The aerosol is delivered to the subject via inhalation for the treatment of the pulmonary infection.

Apparatus for preventing over inflation of the retention balloon in medical catheters and airway devices

The body has a fluid inlet port for receiving pressurized fluid and a fluid outlet port connected to the retention balloon. A first passage connects the fluid inlet port and the fluid outlet port. A second passage in the body is connected to the balloon fluid return path and is at the pressure of the retention balloon. A valve prevents fluid flow through the first passage when actuated. The valve includes a pressure-responsive member movable to a position to obstruct fluid flow in response to fluid pressure in the second passage exceeding the predetermined level. Flexible means such as a membrane defines a normally open portion of the first fluid passage, which is closed by the moveable means bearing on the membrane when pressure exceeding the predetermined level actuates the valve.

Bypass device for absorption tank

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.

Medical Tubes for Selective Mechanical Ventilation of the Lungs

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.

Breathing-Gas Delivery And Sharing System And Method

A device, system, and method for isolating a ventilator from one or more patients in which the delivery conditions of gas delivered to an isolation device from a ventilator may drive the delivery of breathing-gas delivered to one or more patients, the breathing-gas having the same or different delivery conditions. In one embodiment, an isolation device may have a housing and a movable partition. The movable partition may be joined to the housing, The movable partition may have a patient side on a first side of the partition and an actuating side on a second side of the partition. The isolation device may include an inlet pressure regulator on the actuating side and/or an exhaust pressure regulator on the patient side. These regulators may alter the delivery conditions (including, but not limited to, pressure and volume) of breathing-gas delivered to a patient.

PORTABLE APPARATUS FOR OXYGEN DELIVERY

A portable apparatus for oxygen delivery includes a receptacle, a mouthpiece and a tube. In another aspect the mouthpiece includes a first fluid channel for a first fluid and a second fluid channel for a second fluid that is different from the first fluid. In a further aspect, the portable apparatus includes a receptacle, a mouthpiece and a tube in which the mouthpiece includes a teeth engagement portion, a lip engagement portion and a lip protection portion. 1. A portable apparatus for oxygen delivery , the apparatus comprising:a portable receptacle defining a space containing pressurized oxygen;a mouthpiece defining a first fluid channel and a second fluid channel; anda tube having a first end fluidly coupled to the receptacle and a second end fluidly coupled to the first fluid channel of the mouthpiece, the tube configured to provide oxygen in the receptacle to the first fluid channel of the mouthpiece,wherein oxygen is allowed to flow through the first fluid channel and is restricted from flowing through the second fluid channel, while ambient air is allowed to flow through the second fluid channel and is restricted from flowing through the first fluid channel.2. The portable apparatus of claim 1 , further comprising a wearable garment including a pocket claim 1 , and wherein the receptacle is removably received in the pocket.3. The portable apparatus of claim 2 , wherein the wearable garment is a textile vest.4. The portable apparatus of claim 1 , wherein the mouthpiece comprises a mixing chamber claim 1 , and the oxygen and the ambient air mix in the mixing chamber prior to entering into a mouth of a user.5. The portable apparatus of claim 1 , wherein the receptacle is refillable and capable of being moved with the user in a hands-free manner during vigorous activity.6. The portable apparatus of claim 1 , wherein the receptacle includes a conserver device claim 1 , and the first end of the tube is fluidly coupled to the conserver device.7. The portable ...

APPARATUS, METHOD AND SYSTEM FOR A MOBILE MEDICAL DEVICE

A portable medical device for sedating a patient includes a first vessel with a first substance contained under pressure and a second vessel with a second substance contained under pressure. A Y-valve may be provided with a first inlet, a second inlet, an outlet, a first pressure control valve between the first inlet and the outlet, and a second pressure control valve between the second inlet and the outlet. Tubes may connect the first and second vessels and a face mask to the Y-valve. The first pressure control valve may be opened to permit a fluid flow of the first substance from the first vessel to the face mask, and the second pressure control valve may be opened to permit a fluid flow of the second substance from the second vessel to the face mask. 1. A portable medical apparatus , comprising:a first vessel with a first substance contained under pressure;a second vessel with a second substance contained under pressure, the second vessel coupled to the first vessel;a Y-valve with a first inlet, a second inlet, an outlet, a first pressure control valve between the first inlet and the outlet, and a second pressure control valve between the second inlet and the outlet;a first tube coupled between the first vessel and the first inlet;a second tube coupled between the second vessel and the second inlet;a third tube coupled between the outlet and a face mask configured to seal over at least one of a nose and mouth of a user,wherein the first pressure control valve is opened to permit a fluid flow of the first substance from the first vessel to the face mask, and the second pressure control valve is opened to permit a fluid flow of the second substance from the second vessel to the face mask.2. The portable medical apparatus of claim 1 , wherein the first substance is medical grade nitrous oxide claim 1 , and the second substance is medical grade oxygen.3. The portable medical apparatus of claim 1 , further comprising:at least one pressure gauge that provides a ...

VENTILATION MASK

Disclosed is a nasal ventilation mask having separate ports to monitor end-tidal COexpulsion integrated into the mask in order to monitor end-tidal COexpelled nasally or orally. Also disclosed is a CPR mask for nose-to-mouth and/or mouth-to-mouth resuscitation, having a body shaped to cover the nose and/or mouth of a victim, said mask including a COabsorber for eliminating at least in part rescuer's exhaled COdelivered to the victim. 1. A nasal ventilation mask having an integrated end-tidal COmonitor for monitoring end-tidal COexpelled nasally and/or orally by a patient.2. The mask of claim 1 , wherein the mask is adapted for use as an oxygen transport mask claim 1 , or as a ventilation mask providing Oand anesthesia gases claim 1 , and said end-tidal COmonitor is adapted for monitoring end-tidal COsimultaneously or sequentially.3. The mask of claim 1 , wherein said mask is adapted for CPAP pre-operatively claim 1 , intra-operatively claim 1 , and/or post-operatively.4. The mask of claim 1 , wherein said mask is adapted for connection to a resuscitator bag such that a patient's mouth and airway are not obstructed by the resuscitator bag claim 1 , whereby to allow for direct laryngoscopy and intubation.5. The mask of claim 1 , said mask having an Oport for introducing oxygen into the mask claim 1 , and a ventilation port and a gas monitoring attachment integral to or attached to the ventilation port.6. The mask of claim 1 , further comprising an anesthesiologist controlled 2-way claim 1 , 3 port valve permitting an anesthesiologist to switch between separately monitoring nasal and oral end-tidal CO claim 1 , or simultaneously monitoring nasal and oral end-tidal CO claim 1 , wherein when oral end-tidal COmonitoring is chosen claim 1 , ventilation gases expelled orally by the patient are also monitored.7. The mask of claim 1 , having an exterior opening under a nose region of the mask claim 1 , adapted to overlie a patient's lip region claim 1 , wherein said opening ...

SMART ETT VENTILATION ATTACHMENT AND METHOD OF USE

An add-on device and method for an Endo-Tracheal Tube (ETT), the add-on device including a lengthy body having a major arc-shaped cross section sized and shaped to tightly fit over an ETT, at least one longitudinal cavity passing along the lengthy body, including a distal suction cavity ending with a suction inlet at a distal end of the lengthy body; and a distal suction outlet channel extending from a proximal end of the lengthy body, the channel is a continuous extension of the distal suction cavity and configured to provide suction to the distal suction cavity. The add-on device senses moisture at a distal end of the add-on device, and in case of detection of excessive wetness, provides suction to the distal end of the device through a cavity passing along the device, the suction is provided via a suction outlet channel extending from a proximal end of the device. 1. An add-on device for a ventilation tube , the add-on device comprising:a lengthy body having a longitudinal slit sized and shaped to fit over the ventilation tube while the ventilation tube is located within a trachea of a ventilated patient;a plurality of discrete longitudinal cavities including at least one sampling pipe passing within a core of thickness of a cross section of the lengthy body;at least one sensor data channel passing within the core of thickness of the cross section of the length body and spaced apart from the plurality of discrete longitudinal cavities;a sensor for sensing of gas within the at least one sampling pipe; anda controller that receives data from the sensor, and automatically inflates or deflates a balloon on a distal end portion of the ventilation tube according to the received data,wherein prior to use the add-on device is disconnected from the balloon and the ventilation tube, the balloon being external to the add-on device, and when in use the add-on device is connected to the ventilation tube and positioned proximal to the balloon.2. The add-on device of claim 1 , ...

HUFF COUGH SIMULATION DEVICE

A respiratory treatment device having an inlet configured to receive exhaled air into the device and an outlet configured to permit exhaled air to exit the device. A blocking member is moveable between a closed position where the flow of air through the device is restricted, and an open position where the flow of air through the device is less restricted. A biasing member is configured to bias the blocking member toward the closed position, wherein a level of bias decreases as the blocking member moves from the closed position to the open position. 1. A respiratory treatment device comprising:an inlet configured to receive exhaled air into the device;an outlet configured to permit exhaled air to exit the device;a blocking member moveable between a closed position where the flow of air through the device is restricted, and an open position where the flow of air through the device is less restricted; and,a biasing member configured to bias the blocking member toward the closed position, wherein a level of bias decreases as the blocking member moves from the closed position to the open position.2. The respiratory treatment device of claim 1 , wherein the biasing member comprises a pair of magnets.3. The respiratory treatment device of claim 2 , wherein a distance between a first magnet and a second magnet of the pair of magnets is selectively adjustable when the blocking member is in the closed position.4. The respiratory treatment device of claim 1 , wherein the blocking member moves from the closed position to the open position in response to a threshold exhalation pressure in the device.5. A respiratory treatment device comprising:an inlet configured to receive exhaled air into the device;an outlet configured to permit exhaled air to exit the device;a blocking member moveable between a closed position where the flow of air through the device is restricted, and an open position where the flow of air through the device is less restricted; and,a biasing member ...

Oxygen sensor assembly for medical ventilator

The present invention relates to oxygen sensors for medical ventilators. A medical ventilator includes a patient circuit delivering inspiratory airflow to a patient and returning expiratory airflow from the patient back to the ventilator. A manifold includes an air flow path into the patient circuit, and a port with an opening for an oxygen sensor. When mated to the port, the oxygen sensor samples the air in the air flow path and detects the amount of oxygen in the air. When the oxygen sensor is inserted into the port, a valve is biased open, to allow airflow through the opening into the oxygen sensor during ventilation. When the oxygen sensor is removed from the port, the valve biases into a closed position covering the opening, to prevent leaks. The ventilator can then continue to operate without the oxygen sensor in place.

Systems and Methods for Compensating Long Term Sensitivity Drift of Electrochemical Gas Sensors Exposed to Nitric Oxide

Described are systems and methods for compensating long term sensitivity drift of catalytic type electrochemical gas sensors used in systems for delivering therapeutic nitric oxide (NO) gas to a patient by compensating for drift that may be specific to the sensors atypical use in systems for delivering therapeutic nitric oxide gas to a patient. In at least some instances, the long term sensitivity drift of catalytic type electrochemical gas sensors can be addressed using calibration schedules, which can factor in the absolute change in set dose of NO being delivered to the patient that can drive one or more baseline calibrations. The calibration schedules can be used reduce the amount of times the sensor goes offline. Systems and methods described may factor in in actions occurring at the delivery system and/or aspects of the surrounding environment, prior to performing a baseline calibration, and may postpone the calibration and/or rejected using the sensor's output for the calibration. 1. A method for compensating for sensor drift in a sensor , the method comprising:monitoring a patient intake of therapeutic gas with a sensor;storing in memory a baseline calibration value, a slope associated with the baseline calibration value, and a calibration schedule, wherein the slope represents a plurality of correlated values of therapeutic gas dosage concentrations to values output from the sensor;delivering, via a therapeutic gas delivery device, a predetermined dosage of therapeutic gas to the patient;measuring a concentration of therapeutic gas from the delivered predetermined dosage;retrieving, from memory, the baseline calibration value and slope;performing a calibration according to the calibration schedule, wherein the calibration includes exposing the sensor to a zero concentration of the therapeutic gas and adjusting the baseline calibration value according to a sensor output value during the calibration;determining an actual concentration of therapeutic gas ...

Systems And Methods for Compensating Long Term Sensitivity Drift Of Electrochemical Gas Sensors Exposed to Nitric Oxide

Described are systems and methods for compensating long term sensitivity drift of catalytic type electrochemical gas sensors used in systems for delivering therapeutic nitric oxide (NO) gas to a patient by compensating for drift that may be specific to the sensors atypical use in systems for delivering therapeutic nitric oxide gas to a patient. In at least some instances, the long term sensitivity drift of catalytic type electrochemical gas sensors can be addressed using calibration schedules, which can factor in the absolute change in set dose of NO being delivered to the patient that can drive one or more baseline calibrations. The calibration schedules can be used reduce the amount of times the sensor goes offline. Systems and methods described may factor in in actions occurring at the delivery system and/or aspects of the surrounding environment, prior to performing a baseline calibration, and may postpone the calibration and/or rejected using the sensor's output for the calibration. 1. A method for compensating therapeutic gas sensor drift affiliated with therapeutic gas delivery , comprising:storing, in memory affiliated with a therapeutic gas delivery system, a calibration line correlating expected output values from a therapeutic gas sensor to therapeutic gas concentrations and a calibration schedule providing times for performing a plurality of baseline calibrations, the baseline calibrations being performed in response to a set dose change, the baseline calibrations including exposing the therapeutic gas sensor to a zero concentration of therapeutic gas;supplying, via the therapeutic gas delivery system, therapeutic gas into an inspiratory flow of a patient breathing circuit, according to a set dosage;monitoring output values from the therapeutic gas sensor, the therapeutic gas sensor in fluid communication with the breathing circuit, the output values indicative of the therapeutic gas concentration in the inspiratory flow;determining the actual output ...

Infant Care Transport Device with Shock and Vibration System

A shock and vibration system for an infant care transport system with an enclosed infant care device. The shock and vibration system utilizes multiple damping systems that create a floating patient support system that allows the infant care device to move in the various axes of motion instead of being rigidly mounted to the frame or sub-frame, or any substructure.

Sleep Apnea Treatment System and Improvements Thereto

A valve structure for treating a patient suffering from obstructive sleep apnea is provided. The valve structure is connected to an air flow generator and connected to a mask that covers at least the nostrils of a patient. The valve structure includes a housing with an inlet pressure port connected to the air flow generator, and an ambient pressure port. Within the housing is an expiratory membrane, an expiratory valve seat, an inspiratory membrane, an inlet pressure valve seat, an inspiratory valve seat, and an inspiratory membrane segmentation structure configured to segment the movement of the inspiratory membrane into at least a first portion and a second portion. An expiratory valve in fluid connection with the inlet pressure port is formed by the expiratory membrane and the expiratory valve seat. An inlet pressure valve is formed by the inlet pressure valve seat and the first portion of the inspiratory membrane. An inspiratory valve is formed by the inspiratory valve seat and the second portion of the inspiratory membrane. 1. A valve structure for treating a patient suffering from obstructive sleep apnea , the valve structure adapted to be connected to an air flow generator and connected to a mask that covers at least the nostrils of a patient , the valve structure comprising:a housing with an inlet pressure port configured to be connected to the air flow generator, and an ambient pressure port, within the housing an expiratory membrane, an expiratory valve seat, an inspiratory membrane, an inlet pressure valve seat, an inspiratory valve seat, and an inspiratory membrane segmentation structure configured to segment the movement of the inspiratory membrane into at least a first portion and a second portion;an expiratory valve in fluid connection with the inlet pressure port, formed by the expiratory membrane and the expiratory valve seat;an inlet pressure valve formed by the inlet pressure valve seat and the first portion of the inspiratory membrane, wherein ...

System and method for non-invasive ventilation

Systems and methods for non-invasive ventilation are provided. The systems may include a gas source that provides breathing gases to a patient through one or more of a primary flow path (PFP) and a flushing flow path (FFP). The system may include a control assembly configured to open and restrict gas flow through the PFP. When the PFP is open, a significant portion of the gas flows through the PFP while the remaining gas flows through the FFP. When the PFP is restricted, a significant portion of the gas flows through the FFP. Increased flow through the FFP may have a high velocity (especially relative to the flow through the PFP). Gas delivered through the FFP may be used to flush dead space. One or both flow paths may contribute to inspiratory positive airway pressure (IPAP), expiratory positive airway pressure (EPAP), and/or positive end expiratory pressure (PEEP).

SYSTEM FOR BREATH SAMPLE COLLECTION AND ANALYSIS

Systems and methods for collecting samples from a patient for diagnosis are provided. In many embodiments, the sample collection and analysis system concentrates particles emanating from a patient's cough, sneeze, or breathe in a sample for the diagnosis of a respiratory tract infection or other ailment of the patient. The sample collection and analysis system has a pre-collection assembly (that is patient interface, a collector in fluid communication with a sample reservoir that function in combination to: efficiently capture the volume of air expelled from the subject, direct the expelled air towards a sample reservoir, and separate the desired particle sizes from the expelled air into the sample reservoir. 1. A biological sample collector system comprising:a pre-collection assembly configured to engage with a patient such that the entirety of the outflow of breath from the patient including any biological particulates contained therein is captured within the collector system;a sample reservoir defining a volume having therein a sample medium for entraining the target biological particulates in the sample medium to form a sample analyte suitable for diagnostic analysis;a collector in fluid communication between the pre-collection assembly and the sample reservoir, and having at its terminating end a fluid focusing nozzle, the collector being configured to select said biological particulates of greater than a target size from said outflow of breath and direct said target biological particulates into said sample reservoir such that efficient transfer of the target biological particulates into the sample medium is obtained; andwherein at least a portion of the outflow of breath flows through said pre-collection assembly and into said collector in any single breath, and wherein the remainder of the outflow of breath is temporarily stored within said pre-collection assembly.2. The system of claim 1 , wherein the angle formed between the entry of the fluid focusing ...

Systems And Methods for Compensating Long Term Sensitivity Drift Of Electrochemical Gas Sensors Exposed to Nitric Oxide

Described are systems and methods for compensating long term sensitivity drift of catalytic type electrochemical gas sensors used in systems for delivering therapeutic nitric oxide (NO) gas to a patient by compensating for drift that may be specific to the sensors atypical use in systems for delivering therapeutic nitric oxide gas to a patient. In at least some instances, the long term sensitivity drift of catalytic type electrochemical gas sensors can be addressed using calibration schedules, which can factor in the absolute change in set dose of NO being delivered to the patient that can drive one or more baseline calibrations. The calibration schedules can be used reduce the amount of times the sensor goes offline. Systems and methods described may factor in in actions occurring at the delivery system and/or aspects of the surrounding environment, prior to performing a baseline calibration, and may postpone the calibration and/or rejected using the sensor's output for the calibration.

ADJUSTABLY CONTROLLING RESCUE OR ASSISTED BREATHS

Described are overinflation and/or overventilation devices. The devices can include a body configured to attach to a resuscitation interface and a gas source, a subject metric input component disposed at the body, the subject metric input component configured to receive input specifying a metric associated with a resuscitation subject; and a volume control mechanism disposed within the body, the volume control mechanism configured to control a volume of gas provided by the gas source during a manual resuscitation that is communicated to the resuscitation interface based on the metric provided by the subject metric input component. Methods of using these devices are also included. 1. An overinflation and/or overventilation device , the device comprising:a body configured to attach to a resuscitation interface and a gas source:a subject metric input component disposed at the body, the subject metric input component configured to receive input specifying a metric associated with a resuscitation subject; anda volume control mechanism disposed within the body, the volume control mechanism configured to control a volume of gas provided by the gas source during a manual resuscitation that is communicated to the resuscitation interface based on the metric provided by the subject metric input component.2. The device of claim 1 , wherein the resuscitation interface includes a mask or an advanced airway.3. The device of claim 1 , wherein the resuscitation gas source includes one or both of a resuscitation bag or an oxygen (O) source.4. The device of claim 1 , wherein the body includes an inlet port and an outlet port claim 1 , wherein one or both of the inlet port and the outlet port comply with a standard for manual resuscitator parts such that the device is insertable into existing standard resuscitation equipment.5. The device of claim 1 , wherein the metric associated with the subject includes one or more of a weight claim 1 , a range of weights claim 1 , a height claim 1 ...

Coordinated control of hfcwo and cough assist devices

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.

POSITIVE PRESSURE INSPIRATION DEVICE FOR DELIVERY OF MEDICAMENTS

A respiratory system includes a pressurized gas source coupled to a nebulizer containing a medicament. The nebulizer is connected to a breathing unit. A pressure sensitive switch detects negative pressure at the breathing unit due to inspiration and opens to provide pressured gas flow to the nebulizer. The pressure sensitive switch is configured to close prior to the end of inspiration. Residual medicament disposed in the system is cleared from the system and delivered to the patient during the remainder of the inspiration cycle. A compressor provides positive pressure to aid delivery of medicaments to the patient. 1. A respiratory system for delivery of a medicament to a patient , comprising;a pressurized gas source;a nebulizer containing a medicament, the nebulizer being configured to receive pressurized gas from the pressurized gas source to nebulize at least a portion of the medicament, and to direct nebulized medicament toward a breathing unit configured to deliver nebulized medicament to the patient; anda pressure sensitive switch associated with the pressurized gas source and the breathing unit, wherein the pressure sensitive switch is configured to open upon a first threshold negative pressure level to release pressurized gas, and to close upon a second threshold negative pressure level, the first and second threshold levels occurring during an inspiratory phase of a respiratory cycle.2. The respiratory system of claim 1 , wherein the first threshold negative pressure level is set at a level that occurs at an initial portion of an inspiratory phase of a respiratory cycle.3. The respiratory system of claim 1 , wherein the second threshold negative pressure is set at a level that occurs prior to the end of an inspiratory phase of a respiratory cycle.4. The respiratory system of claim 1 , wherein the pressure sensitive switch is connected to the breathing unit by a trigger hose claim 1 , the trigger hose enabling negative pressure during inspiration to be ...

VOLUME-ADJUSTABLE MANUAL VENTILATION DEVICE

Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed. 1. A manually operable volume-adjustable ventilation device , comprising:a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir;wherein said reservoir comprises a body having a plurality of movable walls defining an enclosed volume; wherein said reservoir has an uncompressed state and a compressed state; wherein said walls are movable with respect to each other, such that moving said walls expresses the volume adjustment limit of the reservoir; wherein said walls are operably connected by movable structures;wherein the device has a configuration comprising at least four substantially coplanar pairs of movable walls.2. The device of claim 1 , wherein the device has a configuration comprising at least five substantially coplanar pairs of movable walls.3. The device of claim 1 , further comprising a sealing layer operably ...

CONNECTOR FOR RESPIRATORY DUCTS

The invention concerns a connector for connecting respiratory ducts together such that they are placed in fluid communication. The connector comprises a first conduit having a female connector end and a second conduit having a male connector end adapted to be received within the female connector end of the first conduit such that the male and female connector ends form a common conduit having an inner surface formed at least in part by the male connector end. The male connector has a retaining formation which is adapted to abut a corresponding formation of the female connector so as to resist separation of the first and second conduits whilst permitting relative rotation there-between when connected. The inner surface of the male connector may comprise a gas washed surface in use. The engagement formation is preferably a recessed area of the female connector, which may be generally annular in shape. In one embodiment, the member(s) may comprise a valve seat. The invention also concerns a breathing circuit comprising the connector. 1. A connector for connecting respiratory ducts together such that they are placed in fluid communication , the connector comprising:a first conduit having a female connector end; anda second conduit having a male connector end adapted to be received within the female connector end of the first conduit such that the male and female connector ends overlap to provide a common conduit having an inner surface formed at least in part by the male connector end,wherein the male connector end has a retaining formation which is adapted to abut a corresponding engagement formation on the overlapping portion of the female connector end so as to resist separation of the first and second conduits whilst permitting relative rotation thereof when connected.2. A connector according to claim 1 , wherein the overlapping portion of the male or female connector end comprises one or more depression extending in a direction substantially parallel with an axis ...

Valved breathing device providing adjustable expiration resistance for the treatment of sleep disordered breathing

Some embodiments of the present disclosure include nasal pillows and a valve assembly for the treatment of sleep disordered breathing. The valve assembly may include a retainer having retainer slots attached to a valve body, a flexible membrane positioned between the valve body and the retainer, the flexible membrane configured to block the retainer slots when a user exhales, and a mask coupling configured to engage with a nasal mask or a nasal pillow support. The valve body may include at least one expiratory port and a mechanism for adjusting a size of the expiratory port, wherein when the size of the expiratory port is decreased, air resistance increases, and when the size of the expiratory port is increased, air resistance decreases. In embodiments, the adjustment mechanism may be a sleeve or an adjustment screw and the nasal pillows may be replaced with a nasal mask.

System And Method Of Administering A Pharmaceutical Gas To A Patient

Methods and systems for delivering a pharmaceutical gas to a patient. The methods and systems provide a known desired quantity of the pharmaceutical gas to the patient independent of the respiratory pattern of the patient over a plurality of breaths every nbreath, where n is greater than or equal to 1. The pharmaceutical gases include CO and NO, both of which are provided as a concentration in a carrier gas. The gas control system determines the delivery of the pharmaceutical gas to the patient to result in the known desired quantity (e.g. in molecules, milligrams or other quantified units) of the pharmaceutical gas being delivered. Upon completion of that known desired quantity of pharmaceutical gas over a plurality of breaths, the system can either terminate, continue, activate and alarm, etc. 1. A method of administering a pharmaceutical gas to a patient , wherein the pharmaceutical gas comprises at least one of nitric oxide or carbon monoxide , the method comprising:delivering a first quantity of the pharmaceutical gas to the patient in a first breath;monitoring the patient's respiratory rate or changes in the patient's respiratory rate;varying the quantity of pharmaceutical gas delivered to the patient in one or more subsequent breaths based on the monitored respiratory rate or changes in the patient's respiratory rate.2. The method of claim 1 , wherein the quantity delivered in the subsequent breath is greater than the first quantity in response to a decrease in the patient's respiratory rate.3. The method of claim 1 , wherein the quantity delivered in the subsequent breath is less than the first quantity in response to an increase in the patient's respiratory rate.4. The method of claim 1 , wherein varying the quantity of pharmaceutical gas delivered to the patient avoids high unsafe doses or doses too low to be effective.5. The method of claim 1 , wherein the pharmaceutical gas is delivered to the patient every breath.6. The method of claim 1 , wherein the ...

BREATHABLE GAS INLET CONTROL DEVICE FOR RESPIRATORY TREATMENT APPARATUS

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 ...

Breathing Assistance Device with Nebulizer

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.

CAPNOGRAPH SYSTEM FURTHER DETECTING SPONTANEOUS PATIENT BREATHS

A capnograph system may be used together with a ventilation system for a patient. The capnograph system may include a capnography module with a carbon dioxide detector, which may generate a carbon dioxide signal responsive to an amount of carbon dioxide detected within an air path of the ventilation system. A monitoring circuit may further detect a pressure within the air path. A processing component within the capnography module may generate a pressure signal responsive to the pressure detected in the air path. The pressure signal, alone or in combination with other signals such as the carbon dioxide signal, may be used to detect spontaneous breaths of the patient. 1. (canceled)2. A capnograph system configured to be used together with a ventilation system , the ventilation system including a gas source configured to expel repeated bursts of gas and an airway tube defining an air path that communicates with the gas source , the airway tube configured to be inserted in an airway of a patient so as to guide the bursts of gas as artificial inhalations to a lung of the patient , the capnograph system comprising: a cuvette configured to communicate with the air path, and', 'a pump configured to draw gas from the air path into the cuvette, the pump configured to receive a driving signal and operate responsive to the driving signal; and, 'a capnography module includinga monitoring circuit including a driving sensor configured to detect changes in the driving signal; anda processor configured to detect spontaneous breaths of the patient based at least in part on changes in the driving signal.3. The capnography system of claim 2 , wherein the driving sensor is configured to detect a voltage at a power node of the pump to detect changes in the driving signal.4. The capnography system of claim 2 , wherein the driving sensor is configured to detect a current of a conductor attached to the pump to detect changes in the driving signal.5. The capnography system of claim 2 , ...

SYSTEMS FOR AUTOMATICALLY REMOVING FLUID FROM MULTIPLE REGIONS OF A RESPIRATORY TRACT

Systems and devices for monitoring, detecting, and removing fluid build-up found at various regions along a tracheal tube of an intubated patient. The fluid management system includes pressure and flow sensors for detecting whether there is fluid at the various regions along the tracheal tube, and a means for drawing out the fluid into collection jars. The system also includes lavage features that is able to rinse different the various regions along a tracheal tube. Also disclosed are respiration insertion devices that either couple to existing tracheal tubes or incorporate tracheal tubing, where the respiration insertion body has channels and ports that contact various regions along the tracheal tube. The combination of the fluid management system and the respiration insertion devices effectively monitor and remove fluid at various locations along a tracheal tube of an intubated patient. 1. A system for automatically removing fluid from multiple regions of a respiratory tract and lavaging an oral cavity portion of the respiratory tract , the system comprising:a controller comprising controller circuitry and one or more valves configured to couple to a source of air pressure;a plurality of fluid lines, wherein the fluid lines couple with the one or more valves of the controller, and wherein the controller circuitry is configured to control the one or more valves to apply positive or negative pressure through each fluid line of the plurality of fluid lines;a plurality of flow sensors and pressure sensors, wherein the fluid line are each coupled to a flow sensor and a pressure sensor that are configured to report fluid flow and pressure within the fluid line to the controller;a source of lavage liquid, wherein the controller is configured to apply positive pressure to deliver lavage liquid; andone or more collection containers coupled to the fluid lines and configured to collect fluid from the fluid lines;wherein the controller circuitry is configured to periodically, ...

RESUSCITATOR DEVICE

A manually actuated, self-inflating bag valve mask provides users with a positive pressure ventilation device that reliably provides a proper tidal volume to the patient and controls the rate of ventilation of the patient. The bag valve mask is lightweight, compact, durable, and quickly deployable in the field. The device is preferably operable with one hand and can be configured for use in low-light environments. 1. A resuscitator bag for providing positive pressure ventilation to patients , the resuscitator bag comprising:an upper plate;a lower plate hingedly coupled to the upper plate;a bellows disposed between the upper plate and the lower plate;at least one biasing member configured to move the upper plate and the lower plate apart;a valve assembly comprising an inlet valve and an outlet valve;wherein the valve assembly is in fluid communication with an interior chamber defined by the upper plate, the lower plate and the bellows; andan indicator that gives an indication when the resuscitator bag has been sufficiently inflated.2. The resuscitator bag of claim 1 , wherein the indicator provides the indication when the resuscitator bag reaches an expanded configuration.3. The resuscitator bag of claim 1 , wherein the upper plate further comprises a cavity for securing a tube and mask.4. The resuscitator bag of claim 1 , further comprising a regulated inlet port and/or a maximum inlet port fluidly connected to the resuscitator bag.5. The resuscitator bag of claim 1 , wherein the inlet port comprises a regulator to adjust the fill time.6. The resuscitator bag of claim 1 , wherein the inlet valve controls the flow of air into the bellows so that the bellows becomes inflated to the desired level at a desired ventilation rate for a given patient.7. The resuscitator bag of claim 1 , wherein the fill time is at least approximately 3 seconds and/or less than or equal to approximately 7 seconds.8. The resuscitator bag of claim 1 , wherein the fill time is at least ...

Bi-Directional Oxygenation Apparatus for a Non-Intubated Patient

A self-administered oxygenation apparatus for increasing pressure within a non-intubated patient's lungs and thereby increasing an amount of oxygen in the non-intubated patient's blood when operated by the patient includes a mouthpiece, a vent member, and a resistance member. The mouthpiece includes an external portion defining a center orifice through which the patient selectively inhales and exhales air. The vent member includes a continuous side wall fixedly coupled to the external portion of the mouthpiece and defining an interior area in fluid communication with the center orifice. The resistance member is positioned between the interior area of the vent member and the mouthpiece, the resistance member having a flexible construction configured to fold inwardly upon inhalation so as to allow ambient air inhaled by the patient to pass thereby without resistance and having a perforated construction configured to decrease the flow of air exhaled by the patient. 1. A self-administered oxygenation apparatus for increasing pressure within a non-intubated patient's lungs and thereby expanding collapsed alveoli and thereby increasing an amount of oxygen in patient s blood when operated singly by the non-intubated patient who is capable of unassisted inhalation and exhalation , said self-administered oxygenation apparatus comprising:a mouthpiece having an external portion defining a center orifice through which the patient selectively inhales and exhales air;a vent member having a continuous side wall coupled to said external portion of said mouthpiece and defining an interior area in fluid communication with said center orifice;wherein said vent member includes an end shield operable to partially block access to the interior space while still allowing inhalation or exhalation of air therethrough;a resistance member positioned between said interior area of said vent member and said mouthpiece, said resistance member having a flexible construction for allowing ambient air ...

PROCESS FOR CHECKING THE FUNCTION OF A RESPIRATION SYSTEM

The function of a respiration system, with a patient port () with connected inspiration branch () and expiration branch, is checked. A rebreathing line () connects the inspiration branch to the expiration branch. A reservoir () is connected to a reservoir port () in the rebreathing line. An actuatable control valve () is provided in the rebreathing line between the expiration branch and the reservoir port. A pressure sensor () is connected to the rebreathing line. A control unit () is connected to the control valve and to pressure sensor. The process includes closing the control valve for a preset inspiration time and opening it for a preset expiration time. The value sent by the pressure sensor is detected with the control valve opened during the expiration time and compared with a preset first threshold valve. An error message is generated when the value sent exceeds the first threshold value. 1. A respiration system comprising:a patient port;an inspiration branch, which has an inspiration branch first end and an inspiration branch second end as well as an inspiration branch nonreturn valve, which opens when a pressure on a side of the inspiration branch nonreturn valve facing the inspiration branch second end is above a pressure on a side of the inspiration branch nonreturn valve facing the inspiration branch first end, wherein the inspiration branch first end is connected to the patient port;an expiration branch, which has an expiration branch first end and an expiration branch second end as well as an expiration branch nonreturn valve, which opens when a pressure on a side of the expiration branch nonreturn valve facing the expiration branch first end is above a pressure on the side of the expiration branch nonreturn valve facing the expiration branch second end, wherein the expiration branch second end is connected to the patient port;a rebreathing line, which connects the inspiration branch second end to the expiration branch second end;a reservoir, which has ...

Apparatus, Systems, and Methods For Treating Obstructive Sleep Apnea

Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A unitary valve assembly removably located inside the exterior profile of a nasal pillow mask uses positive airway pressure from a low-flow hose to automatically create an on-demand therapeutic air splint in the pharynx. During inspiration the mask's valving system allows room air to be inspired. During exhalation another valve governs therapeutic backpressure equal to the prescribed pressure setting of the CPAP blower machine. The mask may be worn when the CPAP blower machine is off, and systems are provided for turning the CPAP blower machine on only when needed.

APPARATUS, SYSTEM AND METHOD FOR MEASURING RESISTANCE OF AN INHALER

An apparatus, a closed-loop system and method for measuring the resistance of inhalation systems and/or devices are disclosed. 1. A closed-loop system for measuring the resistance of an inhaler comprising: wherein the first chamber and the second chamber are sealably attached to one another to form a barrier to ambient air and', 'wherein the first and second chambers communicate with one another via an air pathway established by an inhaler air conduit located between the first chamber and the second chamber;, 'an apparatus comprising a first chamber having a first valve and a second chamber having a second valve,'}a vacuum pump attached to the first chamber configured to maintain constant pressure; andone or more microprocessors configured to detect and analyze pressure differential signals from the first and the second chamber and a signal for a flow rate through the inhaler;wherein the one or more microprocessors analyze the signals using a closed-loop algorithm based on the pressure and flow rate signals.2. The closed-loop system of claim 1 , further comprising at least one flow controller and at least one pressure sensor.3. The closed-loop system of claim 1 , wherein the pressure and flow rate measurements are made by a flow controller of the closed-loop system at predetermined pressure drop settings for the inhaler.4. The closed-loop system of claim 1 , further comprising a flow controller.5. The closed-loop system of claim 4 , wherein the flow controller comprises a microprocessor claim 4 , a laminar flow sensor claim 4 , a valve and a pressure sensor.6. The closed-loop system of claim 1 , wherein the closed-loop system further comprises a pressure controller.7. The closed-loop system of claim 6 , wherein the pressure controller is attached to the first chamber.8. The closed-loop system of claim 4 , wherein the flow controller is attached to the second chamber.9. The closed-loop system of claim 1 , wherein the at least one microprocessor is configured to ...

HUFF COUGH SIMULATION DEVICE

A respiratory treatment device having an inlet configured to receive exhaled air into the device, an outlet configured to permit exhaled air to exit the device, a valve moveable in response to a threshold exhalation pressure at the inlet between a closed position where the flow of air from the inlet to the outlet is restricted, and an open exhalation position where the flow of air from the inlet to the outlet is less restricted, and a valve brace configured to support the valve, wherein a position of the valve brace relative to the valve is selectively adjustable to increase or decrease the threshold exhalation pressure. 1. A respiratory treatment device comprising:an inlet configured to receive exhaled air into the device;an outlet configured to permit exhaled air to exit the device;a valve moveable in response to a threshold exhalation pressure at the inlet between a closed position where the flow of air from the inlet to the outlet is restricted, and an open exhalation position where the flow of air from the inlet to the outlet is less restricted; and,a valve brace configured to support the valve, wherein a position of the valve brace relative to the valve is selectively adjustable to increase or decrease the threshold exhalation pressure;wherein the valve is configured to remain in the open exhalation position during the flow of air from the inlet to the outlet.2. The respiratory treatment device of claim 1 , wherein selective adjustment of the position of the valve brace relative to the valve increases or decrease a stiffness of the valve.3. The respiratory treatment device of claim 1 , wherein selective adjustment of the position of the valve brace relative to the valve increases or decreases an area of the valve supported by the valve brace.4. (canceled)5. The respiratory treatment device of claim 1 , wherein the valve is a two-way flap valve.6. (canceled)7. The respiratory treatment device of claim 1 , further comprising a valve seat configured to retain the ...

FLOWMETER BI-VALVE

The present disclosure describes a bi-valve for use with a flowmeter or other source of oxygen or other medical gas, that allows a medical practitioner to easily and quickly switch from delivering oxygen or other gas from the flowmeter or other gas source to a given mask or other device, to another mask or other device. This is accomplished far faster and easier than is done under current practice. Current practice results in the patient being off oxygen or other gas for a short, but very significant period of time, which poses a serious risk of desaturation in the patient. The bi-valve may include a casing, an inlet, and two outlets, with a knob for selecting which output the oxygen or other gas is to be delivered to. The device may be a very simple ball valve device, with the only moving parts being the knob and the ball. 1. A bi-valve for use with an oxygen or other medical gas source , the bi-valve comprising:a casing;a single inlet into which oxygen or other medical gas is introduced into the casing;dual outlets consisting of first and second outlets through which oxygen or other medical gas can be selectively output from the casing; anda knob partially contained in or otherwise attached to the casing, the knob being configured to selectively direct flow of oxygen or other medical gas from the inlet into only a selected one of the first or second outlets,wherein the bi-valve is configured to always provide flow to only one of the first outlet or the second outlet, never both, and never to provide no flow at all; andwherein the bi-valve is configured to only allow for the rotation of the knob from a first position corresponding to flow being provided to only the first outlet, to a second position corresponding to flow being provided to only the second outlet, and vice versa.2. A bi-valve as recited in claim 1 , further comprising a 3-port ball within the casing claim 1 , such that the bi-valve is a ball-valve device claim 1 , the 3-port ball including three ...

ENHANCED PERFORMANCE VERIFICATION PORT FOR THERAPEUTIC GAS DELIVERY

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 ...

PATIENT INTERFACE, SYSTEM AND METHOD

This invention relates to a patient interface, a system and/or method for providing a dedicated or sole inspiratory line or conduit for provision of inspiratory gases to a patient, and a dedicated sole expiratory line or conduit for provision of expiratory gases to a downstream device, where the inspiratory line or conduit is sealing engageable with first of a user's nares and the expiratory line or conduit is sealing engageable with the second of a user's nares. 160.-. (canceled)61. A patient interface comprising:a pair of nasal interfacing components configured to deliver inspiratory gases to a user and configured to receive expiratory gases from the user, the pair of nasal interfacing components comprising a first nasal interfacing component and a second nasal interfacing component; anda valve operable to selectively control passage of gases through the pair of nasal interfacing components;wherein in a first mode, the valve is operable to provide the inspiratory gases to the user solely through the first nasal interfacing component and to receive expiratory gases from the user solely through the second nasal interfacing component; andwherein in a second mode, the valve is operable to provide the inspiratory gases to the user solely through the second nasal interfacing component and to receive expiratory gases from the user solely through the first nasal interfacing component.62. The patient interface as claimed in claim 61 , wherein in a further mode the valve is operable to allow inspiratory gases to be delivered to both of the pair of nasal interfacing components claim 61 , wherein the valve facilitates switching between each of the first mode claim 61 , the second mode claim 61 , and the further mode.63. The patient interface as claimed in claim 61 , further comprising a partition between the first nasal interfacing component and the second nasal interfacing component.64. The patient interface as claimed in claim 63 , wherein the partition provides for a ...

NASAL INTERFACE APPARATUS WITH AIR ENTRAINMENT PORT OF ADJUSTABLE OPEN AREA

A nasal interface apparatus is provided for delivering a gas to a human via a gas supply tube and a pair of tubular nasal inserts. The apparatus includes a manifold hollow body defining an internal chamber, an inlet for fluid communication from the gas supply tube into the internal chamber, an outlet for fluid communication between the internal chamber and the pair of nasal inserts, and an air entrainment port for fluid communication between the internal chamber and a space external to the hollow body. The apparatus also includes a valve member movable relative to the hollow body for varying the size of the open area of the air entrainment port. The open area of the air entrainment port may be varied to regulate a pressure signal detected by a pulse-flow oxygen concentrator (POC). 1. A nasal interface apparatus for delivering a gas to a patient via a gas supply tube and a pair of tubular nasal inserts , the nasal interface apparatus comprising: (i) an internal chamber;', '(ii) at least one inlet for fluid communication from the gas supply tube into the internal chamber;', '(iii) at least one outlet for fluid communication between the internal chamber and the pair of nasal inserts; and', '(iv) at least one air entrainment port for fluid communication between the internal chamber and a space external to the hollow body; and, '(a) a manifold comprising hollow body defining(b) at least one valve member movable relative to the hollow body for varying the size of an open area of the at least one air entrainment port, wherein fluid communication between the internal chamber and the space external to the hollow body via the at least one air entrainment port is permitted only via the open area of the at least one air entrainment port.2. The nasal interface apparatus of claim 1 , wherein the at least one inlet comprises a pair of inlets claim 1 , and the at least one gas outlet comprises a pair of outlets.3. The nasal interface apparatus of claim 1 , wherein the at least one ...

APPARATUS AND METHOD TO PROVIDE BREATHING SUPPORT

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. A ventilator system comprising:a pressurized gas supply;at least two containers comprising a first container comprising a body of fluid and a second container comprising a body of fluid; (i) at least one peak inspiratory pressure (PIP) control duct adapted for connection to the primary duct and configured to be immersed in the body of fluid in the first container;', '(ii) at least one positive end-expiratory pressure (PEEP) control duct adapted for connection to the primary duct and configured to be immersed in the body of fluid in the second container;', '(iii) at least one valve connected to the PIP control duct and the PEEP control duct; and', '(iv) wherein immersed length of the PIP control duct in the first container is different from immersed length of the PEEP control duct in the second container., 'a primary duct including proximal and distal ends, the proximal end adapted for connection to the pressurized gas supply, the duct also adapted for connection to a patient interface between the proximal and distal ends, wherein the distal end further comprises2. The ventilator system of wherein level of fluid in the first container is different from level of fluid in the second container.3. The ventilator system of wherein size and shape of the first container is ...

GAS DELIVERY SYSTEM AND METHOD OF SANITIZING THE GAS FLOW PATH WITHIN A GAS DELIVERY SYSTEM

A gas delivery system () for delivering a flow of breathing gas to a patient () includes a blower assembly () structured to generate the flow of breathing gas. The blower assembly includes a gas flow path including an inlet manifold, an assembly () structured to adjust a pressure and/or flow rate of the flow of breathing gas, and an outlet manifold structured to be coupled to a patient circuit. The gas delivery system additionally includes a light system structured to generate sanitizing light and deliver the sanitizing light to one or more internal surfaces of at least one of the inlet manifold, the assembly and the outlet manifold for sanitizing the one or more internal surfaces. 1. A method of sanitizing a gas flow path within a gas delivery system including a blower assembly structured to generate a flow of breathing gas , the gas flow path including an inlet manifold , an assembly structured to adjust a pressure and/or flow rate of the flow of breathing gas , and an outlet manifold structured to be coupled to a patient circuit , the method comprising the steps of:providing a light system as part of the gas delivery system;generating sanitizing light from the light system;delivering the sanitizing light to one or more internal surfaces of at least one of the inlet manifold, the assembly, and the outlet manifold for sanitizing the one or more internal surfaces.2. The method of claim 1 , wherein the sanitizing light is ultraviolet light claim 1 , and wherein the light system is an ultraviolet light system.3. The method of claim 2 , wherein the sanitizing light is UVultraviolet light claim 2 , and wherein the light system is an ultraviolet light system structured to generate the UVultraviolet light.4. The method of claim 3 , wherein the light system includes a number of UVLEDs embedded within the blower assembly for generating the sanitizing light.5. The method of claim 3 , wherein the light system includes a circuit board claim 3 , a number of UVLEDs located on ...

ACTIVE EXHALATION VALVE

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 ...

APPARATUS AND METHOD TO PROVIDE BREATHING SUPPORT

A ventilator, or a breathing assistance apparatus, is provided to ventilate patients who may have breathing difficulties, said device comprising a inspiratory pressure control duct; a positive end-expiratory pressure control duct; 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 three-port 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 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;at least one PIP electro-mechanical pressure-relief valve connected to the PIP control duct;wherein the three-port 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.2. The apparatus of further comprising at least one PEEP pressure-relief valve connected to the PEEP control duct.3. The apparatus of wherein the pressure-relief valve is a variable pressure-relief valve.4. The apparatus of further comprising a container containing a body of fluid claim 1 , wherein the PEEP control duct is configured to be immersed in the body of fluid in the container.5. The apparatus of wherein a cycle corresponds to one breath and when the gas flows from the inlet port to the first ...

Electrically Operable Resuscitators

The present invention relates to an electrically operable resuscitation device comprising a pump including a rigid cylinder including at least one gas inlet and at least one gas outlet, a piston to travel in said cylinder, and at least one valve, the or each valve configured to allow gas to be displaced into said cylinder through said at least one gas inlet during at least one of a first stroke direction and second stroke direction of said piston in said cylinder, and for allowing gas to displaced through said at least one gas outlet during an opposite of said at least one of the first stroke direction and second stroke direction of said piston in said cylinder; a motor, selected from one of a stepper motor and feedback motor and stepper motor with feedback and linear motor, operatively connected to said piston to move said piston in said cylinder; a patient interface in ducted fluid connection with said pump to receive gas via said at least one gas outlet and to deliver said gas to said patient. 1. Apparatus for resuscitation or ventilation of a patient comprising:a) a pump includinga rigid cylinder including at least one gas inlet and at least one gas outlet,a reciprocating piston movable to travel in said cylinder in a first stroke direction and an opposed second stroke direction, andat least one valve, the valve configured to allow gas to be displaced into said cylinder through said at least one gas inlet during at least one of a first stroke direction and/or a second stroke direction of said piston in said cylinder, and for allowing gas to be displaced through said at least one gas outlet during an opposite of said at least one of the first stroke direction and/or second stroke direction of said piston in said cylinder,b) and accurately positionally controllable motor, operatively connected to said piston to move said piston in said cylinder, andc) a controller configured for controlling the motor to control the position and displacement of the piston in the ...

TEMPERATURE MEASUREMENT AND FEEDBACK FOR THERAPEUTIC HYPOTHERMIA

A treatment system includes a delivery device which delivers a combination of a breathing gas and frozen ice or other particles to a patient in order to induce hypothermia. The treatment system also includes a temperature system for measuring the temperature of exhaled gases and a controller which can adjust the duration or rate at which the ice particles are delivered in order to control the patient's core temperature based on the measured exhalation gas temperature. 1. A method for lowering a core body temperature of a patient , said method comprising:delivering a breathing gas to a respiratory system of the patient during a series of inhalation cycles;delivery frozen particles to the respiratory system during at least a portion of some of the inhalation cycles;measuring the temperature of exhaled gases during at least some exhalation cycles; andadjusting the amount of frozen particles delivered to the patient in order to achieve a target core temperature based on the measured temperature of the exhalation gases.2. A method as in claim 1 , wherein the breathing gas is delivered through a breathing mask.3. A method as in claim 1 , wherein the breathing gas is delivered through an endotracheal tube.4. A method as in claim 1 , wherein the frozen particles are delivered through a breathing mask.5. A method as in claim 1 , wherein the frozen particles are delivered through an endotracheal tube.6. A method as in claim 1 , wherein the frozen particles comprise frozen water.7. A method as in claim 1 , wherein adjusting the amount comprises adjusting a duration of the frozen particles delivered during individual inhalation cycles.8. A method as in claim 1 , wherein adjusting the amount comprises adjusting a rate of the frozen particle delivery during individual inhalation cycles.9. A method as in claim 1 , comprising at least an initial phase wherein a sufficient amount of the frozen particles is delivered to rapidly lower the core body temperature to the garget core ...

EQUIPMENT FOR REHABILITATIVE RESPIRATORY PHYSIOTHERAPY

An equipment for rehabilitative respiratory physiotherapy is described, comprising a mask or mouthpiece, supplying means to supply air to the mask or mouthpiece, a pressure gauge arranged in fluidic connection with the mask or mouthpiece and means for producing pneumatic vibrations in the air supplied to the mask or mouthpiece. The supplying means supply an air flow rate lower than 250 cm/s, or lower than 15 liters/minute, at a pressure substantially equal to the atmospheric pressure. The pressure gauge is designed to detect the depression the self-sufficient patient generates in the mask or mouthpiece when he/she starts inhaling air and to generate a corresponding activation signal of the means for producing pneumatic vibrations. 1132343153243. Equipment () for rehabilitative respiratory physiotherapy , comprising a mask or mouthpiece () , supplying means () to supply air to the mask or mouthpiece () , a pressure gauge () arranged in fluidic connection with the mask or mouthpiece () and means () for producing pneumatic vibrations in the air supplied to the mask or mouthpiece () , wherein the supplying means () supply an air flow rate lower than 250 cm3/s , or lower than 15 liters/min. , at a pressure substantially equal to the atmospheric pressure , and wherein the pressure gauge () is designed to detect the depression the patient generates in the mask or mouthpiece () when the patient starts inhaling air and to generate a corresponding activation signal of the means for producing pneumatic vibrations.21. The equipment () according to claim 1 , wherein the frequency of said vibrations can be adjusted up to a determined time-constant value higher than 15 Hz claim 1 , or can be adjusted continuously between several values between 15 Hz and 100 Hz.31221213. The equipment () according to claim 1 , wherein the supplying means () comprise a compressor () and the respective motor (M) and the vibrations are produced by the compressor () and transmitted directly to the ...

SAFE STANDBY MODE FOR VENTILATOR

A ventilator with a safe standby mode is provided. The safe standby mode allows a user to disconnect a patient from the ventilator, without the ventilator generating alarms and while maintaining previously entered ventilation parameters. In addition, while in the safe standby mode, a patient connection status is monitored, and a ventilation mode is entered automatically if the ventilator determines that a patient is connected to the ventilator while the ventilator is in the safe standby mode. 121.-. (canceled)22. A ventilator comprising:a processor; and deliver ventilation to a patient according to a normal mode of ventilation;', 'receive an indication to initiate a standby mode of ventilation;', 'receive a confirmation of the indication to initiate the standby mode of ventilation;', 'disable at least one patient disconnect alarm;', 'monitor for disconnection of the patient from the ventilator;', 'when disconnection of the patient occurs within a period of time, discontinue ventilation to the patient according to the normal mode of ventilation., 'a memory storing computer-readable instructions that when executed by the processor cause the ventilator to23. The ventilator of claim 22 , the computer-readable instructions when executed by the processor further causing the ventilator to:monitor for reconnection of the patient to the ventilator.24. The ventilator of claim 23 , the computer-readable instructions when executed by the processor further causing the ventilator to:in response to detecting reconnection of the patient to the ventilator, automatically resume the ventilation to the patient according to the normal mode of ventilation.25. The ventilator of claim 22 , the computer-readable instructions when executed by the processor further causing the ventilator to:deliver gases at a reduced rate during the standby mode of ventilation.26. The ventilator of claim 25 , wherein delivering the gases at the reduced rate enables the ventilator to detect reconnection of the ...

GAS FLOW REVERSING ELEMENT WITH BYPASS AND METHOD FOR CONTROLLING EXPIRATION OF A PATIENT

A gas flow reversing element is disclosed that includes a main piece comprising an inflow region, a nozzle region and a mixing region, and further includes a branching piece. The inflow region connects a pressure connector to a closable outlet opening in the mixing region, the branching piece connecting the nozzle region to a line connector. With the outlet opening opened, gas flow flowing along a first flow path from the pressure connector through the nozzle to the outlet opening, generates a gas flow in the branching piece flowing along a second flow path from the line connector to the outlet opening. The reversing element further includes a bypass, closable by at least one closing element, connecting the pressure connector and the line connector so that a gas flow can flow along a third flow path via the inflow region, and bypass the nozzle via the bypass. 113-. (canceled)14. A method for controlling expiration of a patient , wherein an expiration phase of ventilation of a patient is being controlled , wherein the method comprises at least the steps of:1. measuring a pressure value of an expiratory gas flow or expiratory gas volume, wherein the pressure value is a static and/or dynamic pressure value; and2. regulating the expiratory volumetric gas flow;wherein regulating expiratory volumetric gas flow according to step 2 is conducted based on the measured value of step 1.15. The method according to claim 14 , wherein the expiration is controlled by suction.16. The method according to claim 14 , wherein during an expiratory phase claim 14 , the expiratory gas flow passes exclusively through a lumen and a ventilation device.17. The method according to claim 16 , wherein the lumen has a small inner diameter of 6 mm or less and/or a cross sectional area of at most 50 mm.18. The method according to claim 14 , wherein regulating the expiratory volumetric gas flow achieves a high frequency ventilation of up to at least 100 breaths per minute claim 14 , and a low flow ...

Nitrous Oxide Anesthetic Administration System

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.

Systems And Methods Of Administering A Pharmaceutical Gas To A Patient

Methods and systems for delivering a pharmaceutical gas to a patient. The methods and systems provide a known desired quantity of the pharmaceutical gas to the patient independent of the respiratory pattern of the patient over a plurality of breaths every nbreath, where n is greater than or equal to 1. The pharmaceutical gases include CO and NO, both of which are provided as a concentration in a carrier gas. The gas control system determines the delivery of the pharmaceutical gas to the patient to result in the known desired quantity (e.g. in molecules, milligrams or other quantified units) of the pharmaceutical gas being delivered. Upon completion of that known desired quantity of pharmaceutical gas over a plurality of breaths, the system can either terminate, continue, activate and alarm, etc. 1. A method of administering a pharmaceutical gas to a patient , wherein the pharmaceutical gas comprises at least one of nitric oxide or carbon monoxide , the method comprising:delivering a first quantity of the pharmaceutical gas to the patient in a first breath;monitoring the patient's respiratory rate or changes in the patient's respiratory rate;varying the quantity of pharmaceutical gas delivered to the patient in one or more subsequent breaths based on the monitored respiratory rate or changes in the patient's respiratory rate.2. The method of claim 1 , wherein the quantity delivered in the subsequent breath is greater than the first quantity in response to a decrease in the patient's respiratory rate.3. The method of claim 1 , wherein the quantity delivered in the subsequent breath is less than the first quantity in response to an increase in the patient's respiratory rate.4. The method of claim 1 , wherein varying the quantity of pharmaceutical gas delivered to the patient avoids high unsafe doses or doses too low to be effective.5. The method of claim 1 , wherein the pharmaceutical gas is delivered to the patient every breath.6. The method of claim 1 , wherein the ...

RESPIRATORY AUGMENTATION DEVICE

A respiratory augmentation device to assist or augment a user's respiration may include a pressure generator configured to generate a supply of air at positive pressure, a transducer configured to output at least one signal indicative of at least one respiratory characteristic of the user, and a controller coupled with the pressure generator and transducer. The controller may determine a cyclic pressure profile for the pressurised air and control the pressure generator to achieve the pressure profile. The controller may further determine, using the output of the at least one transducer, whether adjustment of the cyclic pressure profile is required. 1. Apparatus for generating a supply of pressurized air at positive pressure for amelioration or treatment of a respiratory disorder , comprising:a pressure generator configured to generate the supply of pressurised air for delivery to a delivery interface of a user;at least one transducer configured to output at least one signal indicative of at least one respiratory characteristic of the user;a controller, coupled with the pressure generator and at least one transducer, and configured to:determine a cyclic pressure profile for the pressurised air;control the pressure generator to achieve the pressure profile; anddetermine, using the output of the at least one transducer, whether adjustment of the cyclic pressure profile is required.2. The apparatus of claim 1 , wherein the controller is configured to determine an initial set of therapy parameters for the cyclic pressure profile claim 1 , the initial set of therapy parameters comprising one or more of: pressure during an inspiratory portion of the cyclic pressure profile claim 1 , pressure during a expiratory portion of the cyclic pressure profile claim 1 , a length of the inspiratory portion of the cyclic pressure profile claim 1 , and a length of the expiratory portion of the cyclic pressure profile.3. The apparatus of claim 2 , wherein the determination of the initial ...

AN APPARATUS FOR CONTROLLING GAS DELIVERY TO A PATIENT

This invention relates to, among other embodiments, methods and apparatus/systems for controlling gases delivery to a patient, such as via a patient interface. Such methods comprising receiving an input relating to either a patient's breathing phase and/or another patient parameter, controlling a flow of gases to be delivered to the patient and the inclusion in said flow of gases of a supplementary gas, wherein the amount of supplementary gas provided to the patient is substantially synchronized with respect to the patient's breathing phase and/or another patient parameter. 1. A method of controlling gases delivery to a patient via a patient interface , the method comprising:receiving an input relating to either a patient's breathing phase and/or another patient parameter,controlling a flow of gases to be delivered to the patient and the inclusion in said flow of gases of a supplementary gas,wherein the amount of supplementary gas provided to the patient is substantially synchronized with respect to the patient's breathing phase and/or another patient parameter.2. A method of claim 1 , wherein the patient receives a lesser amount of said supplementary gas during an expiration phase of the patient's breathing phase relative to an inspiration phase of the patient's breathing phase.3. A method of or claim 1 , wherein the patient receives a greater amount of said supplementary gas during an inspiration phase of the patient's breathing phase relative to an expiration phase of the patient's breathing phase.4. A method of any one of to claim 1 , wherein a patient's breathing phase is determined by a measured indicator of a patient's breathing phase claim 1 , optionally the indicator is one or more of: a pressure in an airway of the patient claim 1 , a patient's chest movement claim 1 , a CO2 measurement in or near an airway of the patient claim 1 , oxygen saturation claim 1 , sensors for detecting patient breathing.5. A method of any one of to claim 1 , wherein the ...

Delivery Apparatus and Accompanying System for the Application of a Medical Agent to a Treatment Site and Method for Use of Same

A medication delivery apparatus and system for the application of a medical agent to a treatment site, such as an airway, and method for use of same are disclosed. In one embodiment of the medication delivery apparatus and system, a reservoir supplies a medical agent to a lower chamber of a housing wherein an ultrasonic transducer applies ultrasonic energy thereto, thereby nebulizing the medical agent. A control valve is interposed between a source of positive pressure air and an upper chamber of the housing to selectively apply positive air pressure to the upper chamber. Upon the application of positive air pressure, the airflow delivers the nebulized medical agent to a target location, such as the airway.

Apparatus and method for a lung isolation tube assembly

A lung isolation tube assembly comprising a control valve that is adapted to be moved between a left lumen position, a right lumen position, and a both lumens position, a connector that is in fluid communication with the control valve, and a tube that is in fluid communication with the connector. The tube comprises a left lumen that is in fluid communication with the connector and a right lumen that is in fluid communication with the connector. The assembly also comprises a first cuff that is disposed around a portion of the right lumen and the left lumen and a second cuff that is disposed around the left lumen. The assembly is adapted to convey airflow or oxygen to a human lung via at least one of the left lumen and the right lumen. A method for isolating a human lung.

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

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.

Transversely-activated valve for a therapeutic vaporizer bag attachment system

A therapeutic vaporizer inhalation bag attachment system with an integrated valve is disclosed. The attachment system includes a body having a lumen extending between the two openings of the body, a bag coupling, and a valve positioned within the lumen. A method of using the inhalation bag attachment system is also disclosed.

A USER INTERFACE FOR SUPPLYING GASES TO AN AIRWAY

A user interface convertible between a nasal configuration and an oral configuration. The user interface has a nasal cannula and a mouthpiece. The nasal cannula has a body portion and at least one prong extending from the body portion, the prong being adapted to direct a flow of gas into a nare of a user's nose. The mouthpiece is adapted to engage the mouth of the patient and direct a flow of gas into a user's mouth. In the nasal configuration the prong of the nasal cannula is adapted to direct a flow of gases into a nare of the patient. In the oral configuration, the nasal cannula is engaged with the mouthpiece such that a gases flow is provided to at least the mouth of the user. 1. A user interface convertible between a nasal configuration and an oral configuration , the user interface comprising:a nasal cannula having a body portion, at least one prong extending from the body portion, the prong being adapted to direct a flow of gas into a nare of a user's nose,a mouthpiece adapted to engage the mouth of the patient and direct a flow of gas into a user's mouth,in the nasal configuration the prong of the nasal cannula is adapted to direct a flow of gases into a nare of the patient, andin the oral configuration, the nasal cannula is engaged with the mouthpiece such that a gases flow is provided to at least the mouth of the user.2. The user interface according to claim 1 , wherein the user interface is further convertible into an oro-nasal configuration.3. The user interface according to claim 2 , further comprising a gas delivery conduit claim 2 , and a valve between the nasal cannula and the mouthpiece claim 2 , whereinin the nasal configuration, the gas delivery conduit delivers a flow of gas to the nasal cannula and the valve prevents or substantially inhibits a flow of gas between the nasal cannula and the mouthpiece,in the oral configuration, the gas delivery conduit delivers a flow of gas to the mouthpiece and the valve prevents or substantially inhibits a ...

PORTABLE OXYGEN SYSTEM

A container for storing oxygen under pressure is disclosed that includes a chamber adapted to be worn around a user's waist and adapted for supplying oxygen to the user; the chamber defining a volume to contain oxygen under pressure; wherein the chamber is defined by a central portion extending between opposite side portions; wherein each of the opposite side portions has a height greater than a maximum height of the central portion that further defines a void between the side portions and above the central portion; and wherein the chamber is further defined by an exterior surface of the chamber adjacent the user. 1. A container for storing oxygen under pressure comprising:a chamber adapted to be worn around a user's waist and adapted for supplying oxygen to the user:the chamber defining a volume sized to contain at least 0.50 liquid liter of oxygen under pressure;wherein the chamber is defined by a central portion extending between opposite side portions;wherein each of the opposite side portions has a height greater than a maximum height of the central portion that further defines a void between the side portions and above the central portion; and ["a) the side portions are configured to wrap at least partially around the user's waist such that the exterior surface of the chamber adjacent the user is substantially concave, or", 'b) the exterior surface of the chamber adjacent the user is substantially planar., 'wherein the chamber is further defined by an exterior surface of the chamber adjacent the user, and either'}2. The container for storing oxygen under pressure of claim 1 , wherein the volume is sized to contain at least 0.75 liquid liter of oxygen under pressure.3. The container for storing oxygen under pressure of claim 1 , wherein the void is sized to receive an oxygen delivery system.4. The container for storing oxygen under pressure of claim 1 , wherein the volume is sized to contain at least 750 liters gaseous equivalent capacity.5. The container for ...

SYNCHRONIZED HIGH-FLOW SYSTEM

Systems and methods for a synchronized high-flow mode are disclosed. In examples, the synchronized high-flow mode varies the flow of breathing gases delivered to the patient to account of changes in a patient's peak inspiratory flow demand, improve the accuracy of measured partial pressure of CO, maintain a more consistent distending pressure, reduce entrainment of room air, and enhance patient synchronization. In an example, a synchronized high-flow mode provides a baseline flow and increases the delivered flow above the baseline flow when the patient's demand exceeds a threshold. In this way, a synchronized high-flow mode may deliver a variable, or time-varying, flow based on the patient demand. Additionally, a minimum baseline flow may be selected and adjusted to maintain a minimum PEEP level. 1. A method for synchronizing flow delivered to a patient at a patient interface , the method comprising:determining a resistance of a breathing circuit including a patient interface;delivering a baseline flow of breathing gases at a flow valve upstream from the patient interface;measuring an upstream flow and an upstream pressure, the upstream flow and the upstream pressure determined at a position between the flow valve and the patient interface;estimating an interface pressure at the patient interface;based on the interface pressure, determining a delta flow; anddelivering an augmented flow at the flow valve, wherein the augmented flow equals the baseline flow plus the delta flow.2. The method of claim 1 , wherein the baseline flow is delivered according to a synchronized high-flow mode.3. The method of claim 1 , wherein determining the resistance includes performing a calibration procedure by varying the upstream flow and the upstream pressure.4. The method of claim 1 , wherein estimating the interface pressure is based on the upstream flow claim 1 , the upstream pressure claim 1 , and the resistance.5. The method of claim 1 , wherein the patient interface is a nasal ...

Nasal drug delivery device

A compound delivery device for delivering a plume derived from a propellant and a drug formulation. The drug formulation is in an intranasal dosage form in the form of powder, suspension, dispersion or liquid. The propelled intranasal dosage form is deposited within the olfactory region of the nasal cavity. The drug deposited within the olfactory region is delivered to the brain avoiding the blood-brain-barrier. Hydrofluoroalkane propellant from a pressurized canister is channeled to a diffuser and drug-containing chamber where the intra-nasal dosage form is aerosolized. The aerosolized intra-nasal dosage form passes through a nozzle thus delivering a plume to the olfactory region of a user's nasal cavity.

Adjustable Resuscitation Device and Method for Using the Same

A device and method for adjusting a tidal breath delivered to a patient. The device includes a moving frame which is configured to move over a stationary frame that is nested within the moving frame itself. Disposed between the moving frame and the stationary frame is a compressible bellows which delivers a tidal breath to the patient each time the moving frame is passed over the stationary frame. The specific volume of the tidal breath that is delivered may adjusted according to the estimated weight of the patient, thereby preventing over inflation of the patient's lungs while undergoing treatment. To adjust the tidal breath volume, the user quickly changes the relative position of a slide selector which dictates the range of possible movement for the bellows to be compressed, thereby limiting the volume of air/oxygen which may be delivered by the bellows. 1. A device for selecting a tidal volume to be delivered to a patient comprising:a stationary frame;a moving frame which at least partially encloses the stationary frame;a bellows comprising two opposing ends, a first opposing end coupled to the stationary frame and a second opposing end coupled to the moving frame;a slide selector disposed between the moving frame and the stationary frame;an oxygen valve coupled to the second opposing end of the bellows; anda patient valve coupled to the stationary frame.2. The device of wherein the slide selector is selectively coupled to a plurality of teeth disposed on the moving frame.3. The device of wherein the moving frame comprises a slit defined in a top surface of the moving frame claim 1 , and wherein the slide selector comprises a thumb depress and a marker which extend from between the moving frame and the stationary frame through the slit.4. The device of wherein the moving frame comprises a cavity for accommodating the slide selector and wherein the stationary frame comprises a stop which is configured to interact with a flat edge of the slide selector.5. The ...

ON-SITE MEDICAL GAS PRODUCTION PLANT AND ASSOCIATED OPERATING METHOD

The invention relates to an on-site medical gas production plant () comprising a unit () for purifying gas, such as air, a first compartment (A) for storing purified gas, and a main gas line () fluidically connecting the gas purification unit () to the said first storage compartment (A). It furthermore comprises a three-way actuated valve (VA) arranged on the main gas line () upstream of the first storage compartment (A), and furthermore connected to the atmosphere (at ) via a vent line (), as well as an operating device () which controls at least the three-way actuated valve (VA), and at least a first gas analysis device (D) of which a first measurement line () is fluidically connected (at ) to the main line (), upstream of the three-way actuated valve (VA), and which is electrically connected to the said operating device (). 1100. An on-site medical gas production plant () , comprising:{'b': '50', 'a synthetic air production unit () configured to produce a mixture comprising nitrogen and oxygen which is medically suitable for respiration by patients in place of or in addition to air,'}a first compartment (A) for storing the purified gas, and{'b': 10', '50', '50, 'a main gas line () fluidically connecting the gas purification unit () to the first storage compartment (A) so as to supply the said first storage compartment (A) with the synthetic air coming from the synthetic air production unit (),'}wherein the main gas line furthermore comprises:{'b': 10', '50', '12', '11, 'a actuated valve (VA) arranged on the main gas line () between the synthetic air production unit () and the first storage compartment (A), and furthermore connected to the atmosphere (at ) via a vent line (),'}{'b': '4', 'an operating device () which controls at least one actuated valve (VA),'}{'b': 1', '29', '28', '10', '200', '4, 'at least a first gas analysis device (D) of which a first measurement line () is fluidically connected (at ) to the main line (), upstream of the actuated valve (VA), ...

MANIFOLD FOR RESPIRATORY DEVICE

A respiratory 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. The valve member is rotatably oscillated back and forth when the valve member is in the first position and when the valve member is in the second position so that oscillations in the positive pressure and negative pressure, respectively, are provided to the patient's airway. 1. A respiratory device comprisinga blower having an inlet and an outlet,a patient interface, anda 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, wherein 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, wherein 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, wherein the valve member is rotatably oscillated back and forth through a second angular displacement that is smaller than the first angular displacement in the first direction and a second direction opposite to the first direction when the valve member is in the first position and when the valve member is in the second position so that oscillations in the positive pressure and negative pressure, respectively, are provided ...

Nebulizer Adapter Kit

A nebulizer adapter kit including a T-shaped adapter having cylindrical upper and lower portions and a safety cap on the lower portion. A direct flow valve on and in fluid communication with each of the proximal end and a channel stemming from a nebulizer medicine reservoir separate from the nebulizer machine. The direct flow valve is in operational and fluid communication with a direct flow tube. A shut-off valve is between and in fluid communication with the direct flow tube and a mouthpiece. A drip-reduction ring on the adapter bottom end inserts within an upper outlet of the nebulizer machine. A gas source is attachable to and in fluid communication with the nebulizer machine to convert liquid therapy medication into a mist, which is formed within the direct flow valve, rather than inside the nebulizer machine. 1a T-shaped adapter having a cylindrical upper portion and a cylindrical lower portion centrally disposed in a position perpendicular to and in fluid communication with the upper portion, the upper portion having a proximal end and a distal end, the lower portion having bottom end and a top end;a safety cap disposed on the distal end of the upper portion;a direct flow valve disposed on and in fluid communication with the proximal end of the T-shaped adapter upper portion, the direct flow valve having an open position and an alternate closed position;a direct flow tube disposed within a channel of and in direct fluid communication with a nebulizer medicine reservoir, the direct flow tube having an upper end and a lower end, the direct flow valve being in operational communication and in fluid communication with the direct flow tube lower end, wherein the nebulizer medicine reservoir is a separate body from and in indirect fluid communication with a nebulizer machine;an amount of liquid therapy medication disposed within the nebulizer medicine reservoir;a shut-off valve disposed between and in fluid communication with the upper end of the direct flow tube ...

SYSTEM AND METHOD FOR DELIVERY OF VARIABLE OXYGEN FLOW

A method and apparatus to deliver a variable flow of oxygen to a patient. The apparatus may include a flow control valve, a pressure sensor to detect a patient's breathing pressure and ambient pressure, an oxygen flow analyzer to measure oxygen flow to the patient, and a processor to analyze the breathing pressure values, ambient pressure value, and oxygen flow rate values and to determine when a patient is inhaling. When the processor determines the patient is inhaling, the processor calculates an optimal oxygen flow rate to deliver to a patient, which may depend on a pre-selected flow rate and an oxygen backlog, and the processor sends a signal to the flow control valve to deliver the optimal oxygen flow rate to the patient. 110.-. (canceled)11. A method for delivering a variable flow of oxygen to a patient , the method comprising:detecting the patient's breathing pressure to determine a breathing pressure value;receiving the breathing pressure value at at least one processor;the at least one processor incrementing a total amount of oxygen to be delivered based on a pre-selected oxygen flow rate and a predetermined time interval;the at least one processor analyzing the breathing pressure value to determine if the patient is inhaling or exhaling, and when the processor determines the patient is inhaling, the at least one processor calculating an optimal oxygen flow rate based on the total amount of oxygen to be delivered and the breathing pressure value;the at least one processor sending a signal to a flow control valve to open the valve sufficiently to deliver the optimal oxygen flow rate;measuring an oxygen flow rate through an oxygen delivery device to provide an oxygen flow rate value;receiving the oxygen flow rate value at the least one processor; andthe at least one processor decrementing the total amount of oxygen to be delivered based on the oxygen flow rate value.12. The method according to claim 11 , where the step of the at least one processor ...

SYSTEMS AND METHODS FOR SUSTAINED BREATH DELIVERY TO NEONATES

A T-piece for ventilating a neonate includes a body having three ports, including an air supply connection port configured to connect to an air supply hose to receive gas therefrom, a mask connection port configured to connect to a neonatal ventilation mask, and a positive end-expiratory pressure (PEEP) control port. A PEEP adjustor cap is connected to the PEEP control port, the PEEP adjustor cap having a bypass hole to allow gas to exit the T-piece and configured such that when the bypass hole is closed substantially all gas received at the air supply connection port is directed to the neonate, and when the bypass hole is open at least a portion of the gas received at the air supply connection port exits through the bypass hole. The T-piece is configured such that the bypass hole can be closed to deliver a sustained breath procedure to a neonate. A sustained breath delivery timer configured to limit a duration of the sustained breath procedure.

APPARATUS AND METHOD TO PROVIDE BREATHING SUPPORT

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 ...

POSITIVE EXPIRATORY PRESSURE DEVICES WITH FLUTTER VALVE

A positive pressure airway device for providing resistance in an air pathway for a patient exhaling. The device includes a central tube region, a inspiratory air passageway for passing air into the central tube region when a patient breathing through the device inhales, and an expiratory air passageway for passing air out of the central tube region when a patient breathing through the device exhales, A valve in the expiratory air passageway allows air to flow out only when a patient using the device exhales with an expiratory air pressure greater than a selected pressure, and includes a stopper and a coil spring with an interior portion that is free from any structure that would inhibit the “side-to-side” movement of the spring within the housing. The stopper has a cone-shaped air-stopping surface providing a valve angle that is different from the valve-seat angle so that either laminar or oscillating flow may be obtained. 1. A device for providing resistance in an air pathway for a patient exhaling , the device comprising:a) a central tube region;b) a first passageway for passing air into the central tube region when a patient breathing through the device inhales;c) a second passageway for passing air out of the central tube region when a patient breathing through the device exhales, wherein the second passageway has an upper portion defined by upper wall, a lower portion defined by a lower wall, and a transitional wall connecting the lower wall to the upper wall, and wherein the transitional wall is slanted at an angle α with respect to a line perpendicular to the vertical axis of the second passageway, thus providing a passageway having a valve seat angle α;d) a third passageway for passing air from the central tube region and into a patient when the patient breathing through the device inhales, and for passing air from the patient to the central tube when the patient breathing through the device exhales;e) a valve in the first passageway that allows air to flow ...

PATIENT INTERFACE ASSEMBLY FOR RESPIRATORY THERAPY

A patient interface assembly includes a housing that defines an inlet port and an outlet port. A jet pump receives pressurized gas flow from the inlet port and delivers the gas flow to the outlet port. A nebulizer is fluidly coupled to the outlet port and positioned to introduce medication into the gas flow and deliver medicated gas flow to a patient. 1. A method for delivering respiratory therapy to a patient , comprising:delivering pressurized gas flow to an inlet port of a housing;drawing in ambient air from an entrainment port in the housing;combining the pressurized gas flow with the ambient air using a jet pump disposed within the housing;delivering combined air from the jet pump to a nebulizer; introducing medication into the gas flow using the nebulizer; anddelivering medicated gas flow to the patient.2. The method of claim 1 , and further comprising providing an exhalation port in the housing to exhaust air flow received from the patient.3. The method of claim 1 , and further comprising:combining the pressurized gas flow with ambient air in an entrainment region of the jet pump;forcing combined air through a throat region of the jet pump; anddelivering combined air to an expansion region of the jet pump.4. The method of claim 1 , wherein a spring biases the jet pump with respect to the housing in a direction toward the inlet port.5. The method of claim 1 , wherein as the jet pump moves away from the outlet port claim 1 , a flow path is created between the exhalation port and the outlet port.6. The method of claim 1 , wherein the housing includes a nebulizer port fluidly coupling the nebulizer to the housing.7. The method of claim 1 , wherein a cut-out is defined through the housing and tapers toward the outlet port.8. A method for delivering respiratory therapy to a patient claim 1 , comprising:delivering pressurized gas flow to an inlet port of a housing;drawing in ambient air from an entrainment port in the housing;combining the pressurized gas flow with ...

Hypoxic Breathing Apparatus and Method

A breathing apparatus includes a breathing mask, hose, and first housing in fluid communication with the hose and breathing mask. The first housing has first and second chambers which are separated by a barrier comprising a carbon dioxide scrubber. The breathing apparatus is configured to conduct hypoxic therapy and tailor the therapeutic session to the patient while collecting data about patient response. 1. A breathing apparatus comprising:a breathing mask;a hose attached to the breathing mask and defining an expiratory flow passage through which expiratory gas from the breathing mask flows, the hose further attached to a first port, the first port defining an inlet into a first housing such that the flow passage is in fluid communication with the first port;the first port comprising a first directional valve for one-directional flow of the expiratory gas through the first port into the first housing;the first housing having a first chamber and a second chamber, the second chamber separated from the first chamber by a barrier, the barrier comprising a carbon dioxide scrubber through which the expiratory gas flows after entering the first chamber;an expandable reservoir in fluid communication with at least one of the first chamber and second chamber;the barrier separating the first and second chambers having a second port, the second port comprising a second directional valve for one-directional flow of gas out of the second chamber; andwherein the second port communicates with the breathing mask via an inspiratory flow passage.2. The breathing apparatus of claim 1 , wherein at least a portion of the barrier separating the first and second chambers is non-permeable.3. The breathing apparatus of claim 1 , wherein the hose further defines the inspiratory flow passage.4. The breathing apparatus of claim 3 , wherein the inspiratory flow passage and expiratory flow passage are coaxial.5. The breathing apparatus of claim 1 , wherein the carbon dioxide scrubber includes a ...

Adaptors for Removal of Debris and Fluids from Ventilator Circuits

A humidifier adaptor for evacuating fluid and/or debris from a ventilator system includes a housing having a base, a top, and at least one sidewall, which together define a chamber and an inlet in the base of the housing extending into the chamber. The inlet includes a first end configured to receive air from a humidifier, a second end in the chamber, and a sidewall. The second end of the inlet can be positioned to at least partially inhibit the fluid and/or debris from entering an interior portion of the inlet. The humidifier adaptor also includes a tangential outlet in the at least one sidewall of the housing through which the air flows substantially tangentially out of the chamber. The humidifier adaptor also includes a drain outlet in the base of the housing for removing fluid and/or debris from the ventilator system by evacuation through the chamber. 1. A humidifier adaptor for evacuating fluid and/or debris from a ventilator system , comprising:(a) a housing comprising a base, a top, and at least one sidewall extending therebetween, which together define a chamber;(b) an inlet in the base of the housing extending into the chamber, the inlet comprising a first end configured to receive air from a humidifier, a second end in the chamber, and a sidewall extending therebetween, the second end of the inlet being positioned to at least partially inhibit the fluid and/or debris from entering an interior portion of the inlet;(c) a tangential outlet in the at least one sidewall of the housing through which the air flows substantially tangentially out of the chamber, wherein the tangential outlet is spaced apart from the inlet such that the fluid and/or debris is at least partially inhibited from entering the interior portion of the inlet; and(d) a drain outlet in the base of the housing for removing the fluid and/or debris from the ventilator system by evacuation through the chamber.2. The humidifier adaptor of claim 1 , wherein the housing comprises a cylindrical ...

Medical Tubes for Selective Mechanical Ventilation of the Lungs

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 ...

Mechanical ventilator with oxygen concentrator

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.

ELECTRONIC OXYGEN CONSERVER AND FILLING UNIT

A respiratory system and method includes a filling unit for filling a portable bottle of respiratory gas and a conserver for mounting on such a bottle. A battery on the conserver may be recharged when the bottle is placed on the filing unit. The conserver may include electric timing circuitry operative to control the timing of pulsed flow of respiratory gas from the conserver, and an external electrical coupler to enable adjustment of the timing of the pulsed flow. The conserver may include at least one sensor operative to sense the reversal of flow between exhalation and inhalation, the conserver being operative to commence a respiratory gas delivery pulse in response to the sensing of the reversal of flow. 1. A filling unit for filling a bottle of respiratory gas when a bottle is engaged with the filling unit , the filling unit comprising:a respiratory gas source for filling a bottle; anda battery charger for recharging a battery on a bottle when a bottle is engaged with the filling unit.2. A filling unit as set forth in wherein the battery charger is operative to recharge a battery on a bottle in a time period less than the time period needed for the respiratory gas source to fill a bottle with respiratory gas.3. A filling unit as set forth in including a cradle for supporting a bottle of respiratory gas on the filling unit in a manner so that during the refilling of a bottle a battery can simultaneously be recharged.4. A filling unit as set forth in including a coupler for electrically connecting the battery charger with a battery on a bottle that is engaged with the filling unit.5. A filling unit as set forth in wherein the coupler is a portion of an inductive coupling.6. A filling unit as set forth in wherein the coupler comprises electrical contacts for engaging electrical contacts on a conserver.723-. (canceled)24. Apparatus comprising:a filling unit for filling a bottle of respiratory gas when a bottle is engaged with the filling unit, the filling unit ...

Humidifying device for breathing mask

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.

PROXIMAL CONTROL VALVE

A proximal control valve system for regulating flow of oxygen includes an oxygen inlet attached to an oxygen outlet with an oxygen regulator being positioned therebetween. The oxygen inlet includes a spring plunger assembly that engages with one of a plurality of indents on the gas regulator to enable the flow of oxygen from the oxygen inlet through a desired thru hole in the oxygen regulator to the oxygen outlet. The oxygen regulator is configured to adjust a flow level of the oxygen to a desired level by rotating the oxygen regulator up to 360° about a central axis, allowing the oxygen to flow through the desired thru hole. The system works with a low pressure oxygen source and is positioned proximal to a user such that the user is not required to move to the oxygen source to adjust the flow level of the oxygen. 1. A proximal control valve system for regulating flow of gas from a gas source to a user , the system being positioned proximal to a user , the system comprising:a gas inlet attached to a gas outlet with a gas regulator being positioned between the gas inlet and the gas outlet,the gas inlet being configured to transport gas from a gas source to the gas regulator, the gas inlet comprising a spring plunger assembly configured to engage with one of a plurality of indents on the gas regulator resulting in the gas to flow through a desired thru hole on the gas regulator,the gas regulator being configured to adjust a flow level of the gas to a desired level and to transport the gas from the gas inlet to the gas outlet, andwherein the system is configured to be positioned proximal to a user such that the user is not required to move to the gas source to adjust the flow level of the gas.2. The system of claim 1 , wherein the gas outlet has a threaded portion that extends through an orifice of the gas regulator and screws into a threaded orifice of the gas inlet claim 1 , the gas regulator being capable of rotating up to 360° about the threaded portion of the gas ...

Intelligent gas source management

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.

Systems and methods for high velocity nasal insufflation

Systems, methods, and devices for humidifying a breathing gas are presented. The system includes a base unit, a vapor transfer unit, a nasal cannula, and a liquid container. The base unit includes a blower. The vapor transfer unit is external to the base unit and includes a gas passage, a liquid passage, a gas outlet, and a membrane separating the gas passage and the liquid passage. The membrane permits transfer of vapor into the gas passage from liquid in the liquid passage. The nasal cannula is coupled to the gas outlet. The liquid container is configured to reversibly mate with the base unit.

Controller device, system and method for improved patient respitory care

This invention provides an improved respiratory care system for patients. This system uses vapor generated by a humidifier device to provide a humidified vapor mist directly to a trachea patient via a tubing element. A vapor controller attaches to a conventional humidifier device and controls the flow rate of vapor mist from the humidifier to the patient. A tubing element attaches to the outlet of the vapor controller and channels to humidified vapor directly to the patient. In one embodiment of the present invention, the tubing element can attach directly to the trachea of the patient through a trachea mask. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. A humidity controller device for generating and controlling a high humidity vapor flow to a patient comprising:a humidity adapter for engaging and connecting to a humidity vapor generating device, said humidity adapter having two open ends and a channel there though to facilitate a flow of vapor from the humidity vapor generating device into and out of said humidity adapter through the open ends;a flow control valve connected to said humidity adapter for controlling a flow of vapor from the humidity vapor generating device through said humidity adapter, said flow control valve being a one-way control valve and having two open ends and a channel there through, said flow control valve being attached and aligned with said humidity adapter such that the humidity adapter channel and the flow control valve channel form a continuous channel, said flow control valve having the capability for manual control of vapor flow through said valve; anda high humidity adapter for generating an increase in humidity in the humidity vapor flowing from the humidity vapor generating device, said high humidity adapter having an inlet opening for engaging and connecting ...

CONNECTION OF A SPONTANEOUS DELIVERY DEVICE TO A CONCENTRATOR

One embodiment of the present invention sets forth a technique for operating an oxygen concentrator. The technique includes measuring a product gas within an oxygen concentrator to produce a product gas measurement, and determining that an output of the oxygen concentrator is fluidly connected to a respiratory ventilation device based on the product gas measurement. The technique further includes, in response to determining that the oxygen concentrator is fluidly connected to the respiratory ventilation device, determining that the output of the oxygen concentrator does not meet a supply gas requirement of the respiratory ventilation device and, in response to determining that the output of the oxygen concentrator does not meet the supply gas requirement, adjusting a control output in the oxygen concentrator to modify operation of the oxygen concentrator. 1. A method for operating an oxygen concentrator , the method comprising:measuring a product gas within an oxygen concentrator to produce a product gas measurement;determining that an output of the oxygen concentrator is fluidly connected to a respiratory ventilation device based on the product gas measurement;in response to determining that the oxygen concentrator is fluidly connected to the respiratory ventilation device, determining that the output of the oxygen concentrator does not meet a supply gas requirement of the respiratory ventilation device; andin response to determining that the output of the oxygen concentrator does not meet the supply gas requirement, adjusting a control output in the oxygen concentrator to modify operation of the oxygen concentrator.2. The method of claim 1 , wherein measuring the product gas comprises at least one of measuring a pressure in a tank storing an oxygen-enriched gas and measuring an output flow rate of an oxygen-enriched gas stream.3. The method of claim 2 , wherein determining that the output of the oxygen concentrator does not meet the supply gas requirement of the ...

GAS CYLINDER CONTROL SYSTEM AND GAS CYLINDER FOR USE THEREWITH SYSTEM

The present invention provides a control system () for managing the supply of bottled gas to users (), the system comprising: a gas cylinder system () having a gas cylinder () for receiving and distributing gas contained therein; a first electronic monitoring system () associated with said gas cylinder system () and operable to monitor parameters associated with said cylinder system (); a second monitoring system () associated with one or more locations (A-F) in which said cylinder may reside and being operable to monitor the presence or absence of said cylinder within said one or more locations (A-F); and a computer system () in communication with each of said second monitors () for receiving information therefrom relating to the presence or absence of said cylinder system () in said one or more locations (A-F). 1. A control system for managing the supply of bottled gas to users , the system comprising:a) a plurality of gas cylinder systems having a gas cylinder for receiving and distributing gas contained therein;b) a first electronic monitoring system associated with said gas cylinder system and operable to monitor parameters associated with said cylinder system;c) a plurality of second monitoring systems associated with one or more locations in which said cylinder may reside and being operable to monitor the presence or absence of any of said cylinder systems within said one or more locations; andd) a computer system in communication with each of said second monitoring systems for receiving information therefrom relating to the presence or absence of said cylinder system in said one or more locations.2. A system according to claim 1 , wherein said first monitoring system is configured for monitoring one or more of cylinder specific data relating to any one or more of: cylinder identification claim 1 , gas supply time remaining claim 1 , expiry date claim 1 , cylinder type claim 1 , cylinder location claim 1 , environmental temperature claim 1 , gas usage claim 1 ...

ENHANCED PERFORMANCE VERIFICATION PORT FOR THERAPEUTIC GAS DELIVERY

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 ...

DEVICE AND METHOD FOR MEASURING A GAS CONSUMPTION PERIOD IN A HOSPITAL BUILDING

The invention concerns a device () for determining the period of consumption of a gas by a patient comprising an internal gas passage () with a gas inlet () and a gas outlet (), adjustment means () for adjusting a desired gas consumption period (T), display means () for displaying at least the desired gas consumption period (Tfixé), means for determining the gas consumption period () designed to measure the total gas consumption period (Tconso) during which gas is flowing in said internal gas passage (), from the gas inlet () to the gas outlet (), information processing means () capable of and designed to compare the total gas consumption period (Tconso) determined by the means for determining the gas consumption period () with the desired gas consumption period (Tfixé), and flow interruption means designed to stop any flow of gas in said gas passage when the information processing means determine that the total gas consumption period (Tconso) is greater than or equal to the desired gas consumption period (Tfixé). 112.-. (canceled)1320. A device () for determining the duration of a period during which a gas is consumed by a patient , comprising:{'b': 25', '21', '22, 'an internal gas passage () with a gas inlet () and a gas outlet (),'}{'b': '23', 'sub': 'fixed', 'a regulator () for setting a desired gas consumption period duration (T),'}{'b': '24', 'sub': 'fixed', 'a display () for displaying at least the desired gas consumption period duration (T),'}{'b': 5', '6', '25', '21', '22, 'sub': 'consum', 'a gas consumption period duration determining component (, ) designed to measure the total gas consumption period duration (T) for which gas circulates along said internal gas passage (), from the gas inlet () toward the gas outlet (),'}{'b': 9', '5', '6, 'sub': consum', 'fixed, 'a data processor () able and designed to compare the total gas consumption period duration (T) determined by the gas consumption period duration determining component (, ) with the desired gas ...

INHALATION DEVICE, INHALATION DEVICE SET, AND NOZZLE PLATE THEREFOR

An inhalation device including a housing, which encloses a liquid reservoir in which the liquid is stored before discharge, and an applicator head with a nebulization chamber and an applicator piece connected thereto, wherein the applicator piece is designed either as a mouthpiece, to be received in the mouth of a patient, or as an inhalation mask, to sealingly cover the mouth, the nose, or the mouth and the nose. The inhalation device furthermore has a discharge channel which connects the liquid reservoir to the applicator head. The inhalation device includes at the end of the discharge channel, a nozzle plate with a large number of nozzle openings which serve to generate an inhalation mist and through which the liquid from the liquid reservoir is conveyed into the nebulization chamber. 1. An inhalation device for inhaling a liquid in nebulized form , with the following features:a. the inhalation device has a housing, which encloses a liquid reservoir in which the liquid is stored before discharge, andb. the inhalation device has an applicator head with a nebulization chamber and an applicator piece connected thereto, wherein the applicator piece is designed either as a mouthpiece, to be received in the mouth of a patient, or as an inhalation mask, to sealingly cover the mouth, the nose, or the mouth and the nose, or as an adapter piece for fitting a mouthpiece or an inhalation mask, andc. the inhalation device has a discharge channel which connects the liquid reservoir to the applicator head,wherein: a saline aqueous solution,', "an aqueous solution in the form of a Ringer's solution or a buffered solution,", 'an aqueous solution with at least one of the additives carbohydrates, essential oils, menthol and plant extracts,', 'an aqueous solution containing vitamins, trace elements, manganese or zinc,', 'an aqueous solution with at least one of the additives from the group comprising cinnamon oil, tea tree oil, sage oil, thyme oil, lemon balm oil, and, 'd. the ...

METERED DOSE NEBULIZER

A nebulizer includes a venturi nozzle positioned at the outlet end of an air line and oriented horizontally and located within a patient's oral cavity when in use. A canister port is located at the inlet end of the air line and receives a gas canister. A valve is actuable to allow a metered flow of gas at a predetermined pressure and time to flow from the gas canister through the air line and venturi nozzle. A medication receiver is carried by the nebulizer body proximal to the venturi nozzle. A suction line extends from the venturi nozzle to the medication receiver and draws medication upward from a medication container and mixes it with air passing through the venturi nozzle and nebulizes the medication. 1. A nebulizer , comprising:a nebulizer body comprising an air channel section and nebulizer outlet;an air line extending through the air channel section and having an inlet and an outlet;a venturi nozzle at the outlet end of the air line and oriented horizontally and located within a patient's oral cavity when in use;a canister port at the inlet end of the air line that receives a gas canister and a valve positioned at the canister port and actuable to allow a metered flow of gas at a predetermined pressure and time to flow from the gas canister and through the air line and venturi nozzle;a medication receiver carried by the nebulizer body proximal to the venturi nozzle; anda suction line extending from the venturi nozzle to the medication receiver that draws medication upward from a medication container received within the medication receiver and mixes it with air passing through the venturi nozzle and nebulizes the medication for discharge through the nebulizer outlet.2. The nebulizer according to claim 1 , wherein the medication receiver is located within a patient's oral cavity when in use.3. The nebulizer according to claim 1 , wherein the valve is actuated to deliver gas when pressure is applied downward on the gas canister.4. The nebulizer according to ...

METERED DOSE ATOMIZER

An atomizer has a venturi nozzle positioned at an outlet end of an air line and has a discharge end and is oriented horizontally when in use and forms a mixing chamber at its discharge end. A valve is positioned at a canister port and actuable to allow a metered flow of gas at a predetermined pressure and time through the air line and venturi nozzle. A suction line extends from the venturi nozzle and mixing chamber to a medication receiver and draws medication upward and mixes it with gas passing through the venturi nozzle into the mixing chamber and atomizes the medication into a mist. 1. An atomizer , comprising:a atomizer body comprising an air channel section and atomizer outlet;an air line extending through the air channel section and having an inlet and an outlet;a venturi nozzle at the outlet end of the air line and having a discharge end and oriented horizontally when in use and forming a mixing chamber at its discharge end;a canister port at the inlet end of the air line that receives a gas canister, and a valve positioned at the canister port and actuable to allow a metered flow of gas at a predetermined pressure and time to flow from the gas canister and through the air line and venturi nozzle;a medication receiver carried by the atomizer body proximal to the venturi nozzle and mixing chamber; anda suction line extending from the venturi nozzle and mixing chamber to the medication receiver that draws medication upward from a medication container received within the medication receiver and mixes it with gas passing through the venturi nozzle into the mixing chamber and atomizes the medication into a mist.2. The atomizer according to claim 1 , wherein the valve is actuated to deliver gas when pressure is applied downward on the gas canister.3. The atomizer according to claim 1 , and further comprising a medication container received within the medication receiver and said suction line connects into the medication container.4. The atomizer according to claim ...

METHOD FOR PROVIDING PRESSURE COMFORT FEATURE IN A PRESSURE SUPPORT DEVICE AND PRESSURE SUPPORT DEVICE INCLUDING SAME

A method of providing a pressure support therapy to a patient via a PAP device includes: providing a flow of a breathing gas at a comfort pressure for communication to an airway of the patient for a predetermined period of time and adjusting the pressure of the flow of the breathing gas from the comfort pressure to a prescribed pressure, wherein the comfort pressure is greater than the prescribed pressure. 1. A method of providing a pressure support therapy to a patient via a PAP device , the method comprising:providing a flow of a breathing gas at a comfort pressure for communication to an airway of the patient for a predetermined period of time; andadjusting the pressure of the flow of the breathing gas from the comfort pressure to a prescribed pressure,wherein the comfort pressure is greater than the prescribed pressure.2. The method of claim 1 , further comprising receiving an indication of the comfort pressure prior to providing the flow of the breathing gas at the comfort pressure.3. The method of claim 1 , further comprising providing a flow of the breathing gas at the prescribed pressure prior to providing the flow of the breathing gas at the comfort pressure.4. The method of claim 1 , wherein providing the flow of the breathing gas at the comfort pressure comprises providing the flow of breathing gas at a first comfort pressure and adjusting the flow of breathing gas being provided to a second comfort pressure responsive to receiving an indication from the patient of a different comfort pressure.5. The method of claim 1 , wherein adjusting the flow of breathing gas from the comfort pressure to the prescribed pressure comprises reducing the pressure of the flow of the breathing gas over a period of time.6. The method of claim 5 , wherein the period of time is in the range of 1 to 5 minutes.7. The method of claim 1 , wherein the flow of the breathing gas is provided at the comfort pressure upon commencement of a pressure support therapy.8. The method of claim ...

SYSTEMS AND METHODS FOR HIGH VELOCITY NASAL INSUFFLATION

Systems, methods, and devices for humidifying a breathing gas are presented. The system includes a base unit, a vapor transfer unit, a nasal cannula, and a liquid container. The base unit includes a blower. The vapor transfer unit is external to the base unit and includes a gas passage, a liquid passage, a gas outlet, and a membrane separating the gas passage and the liquid passage. The membrane permits transfer of vapor into the gas passage from liquid in the liquid passage. The nasal cannula is coupled to the gas outlet. The liquid container is configured to reversibly mate with the base unit. 1. A system for delivering breathing gas , the system comprising:a base unit comprising a blower; a gas passage,', 'a liquid passage,', 'a gas outlet, and', 'a membrane separating the gas passage and the liquid passage, wherein the membrane permits transfer of vapor into the gas passage from liquid in the liquid passage;, 'a vapor transfer unit external to the base unit and comprisinga nasal cannula coupled to the gas outlet; anda liquid container configured to reversibly mate with the base unit.2. The system of claim 1 , wherein the liquid container interlocks with a surface of the base unit.3. The system of claim 1 , wherein the container has a surface formed of a flexible film4. The system of claim 1 , wherein the base unit further comprises a heating element for heating liquid claim 1 , the heating element having a heating surface.5. The system of claim 1 , wherein the flexible film is configured to mate with the heating surface when the liquid container mates with the base unit.6. The system of claim 1 , wherein the blower is configured to pressurize breathing gas to less than about 276 kPa (40 psi).7. The system of claim 1 , wherein the liquid container includes an impeller.8. The system of claim 1 , wherein the base unit includes a motor.9. The system of claim 8 , wherein the motor is magnetically coupled to impeller.10. The system of claim 1 , wherein the liquid ...

BREATHABLE GAS INLET CONTROL DEVICE FOR RESPIRATORY TREATMENT APPARATUS

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 ...

A PATIENT INTERFACE

A patient interface that provides breathable gas to a person has a face engaging cushion that includes an internal cavity. In the internal cavity fluid is located, and a control means that is capable of communicating with the fluid can incite change to a property or to properties of the fluid. 1. A patient interface for providing breathable gas to a person comprising a face engaging cushion , the cushion comprising an internal cavity that is adapted to contain fluid and a control means being capable of communicating with the fluid for inciting change to at least one property of the fluid.2. The interface according to claim 1 , wherein the at least one property comprises pressure and/or flow.3. The interface according to claim 1 , wherein the at least one property comprises temperature.4. The interface according to claim 3 , wherein the temperature is lowered or raised.5. The interface according to claim 2 , wherein the pressure and/or flow is lowered and/or raised.6. The interface according to and comprising at least one second internal cavity in the cushion for containing fluid.7. The interface according to and being adapted to facilitate formation of difference between the cavities in a given property.8. The interface according to claim 1 , wherein a given property can be actively changed.9. The interface according to claim 8 , wherein active change is in response to a therapeutic condition of the patient.10. The interface according to claim 1 , wherein active change is controlled automatically claim 1 , optionally by an interface-means in or in communication with the control means claim 1 , that preferably allows the patient or a physician to set upper and lower boundaries of the at least one property and/or a duration of time during which inciting of the at least one property will occur.11. The interface according to claim 1 , wherein the cushion comprises a membrane having a first side for contacting a patient's face during use and a second opposing side facing ...

PORTABLE HANDHELD PRESSURE SUPPORT SYSTEM AND METHOD

The present disclosure pertains to a portable handheld pressure support system configured to deliver a pressurized flow of breathable gas to the airway of a subject. The pressure support system is configured to treat COPD and/or other patients suffering from dyspnea and/or other conditions. The pressure support system is configured to be small and lightweight so that a subject may carry the system and use the system as needed without requiring a device to be worn on the face. The present disclosure contemplates that the portable handheld pressure support system may be used to treat symptoms and/or conditions related to dyspnea, and/or for other uses. In one embodiment, the system comprises one or more of a pressure generator, a subject interface, one or more sensors, one or more processors, a user interface, electronic storage, a portable power source, a housing, a handle, and/or other components. 1. A portable handheld pressure support system configured to deliver a pressurized flow of breathable gas to the airway of a subject , the pressure support system comprising:a pressure generator configured to generate the pressurized flow of breathable gas;a subject interface configured to communicate the pressurized flow of breathable gas to the airway of the subject;one or more sensors configured to generate output signals conveying information related to one or more gas parameters of the pressurized flow of breathable gas;one or more processors configured to control operation of the pressure generator to generate the pressurized flow of breathable gas based on the output signals from the one or more sensors, according to a positive pressure support therapy regime;a portable power source configured to power the pressure generator, the one or more sensors, and the one or more processors;a housing configured to contain the pressure generator, the subject interface, the one or more sensors, the one or more processors, and the power source; anda handle attached to and/or ...

METHOD AND APPARATUS FOR BREATHING ASSISTANCE

Methods and system for treating obstructive sleep apnea and snoring are disclosed. The system generally comprises a mask for delivering pressurized air to patient's breathing orifice, a sensing mechanism for continuously assessing the state of patient's breathing and a pressure generator for generating the pressurized air in the mask. The pressurized air is applied to the breathing orifice only during selected portions of the breathing cycle, when such pressure might be required to prevent occlusion of the airway or to restore patency of the airway after such occlusion occurs. 160-. (canceled)61. A system to facilitate breathing of a subject , comprising:a mask adapted to be applied to at least one breathing orifice of said subject;at least one controllable breathing valve connected between said at least one orifice and the outside atmosphere to control the breathing of said subject;a controller operative to control the at least one controllable breathing valve; anda sensor for monitoring the waveform of the subject's breathing cycle, wherein said controller is adapted to limit the flow through said at least one controllable breathing valve for the duration of the time corresponding to a selected portion of the waveform of the expiration phase, according to information provided by said sensor.62. A system to facilitate breathing of a subject , comprising:a mask adapted to be applied to at least one breathing orifice of said subject;at least one controllable breathing valve connected between said at least one orifice and the outside atmosphere to control the breathing of said subject;a sensor for monitoring the waveform of the breathing cycle of the subject;a controller for controlling said at least one valve, said controller being operative to essentially close said controllable breathing valve during the duration of at least one selected time segment in response to detection by said sensor of cessation of normal breathing for a predetermined time, anda pressure ...

DEVICE FOR ASSISTING A COUGH

The present invention provides a device () for assisting a cough comprising a hosing (), a chamber () formed in the housing, a mouthpiece () communicating with the chamber and exposed out of the housing, and an electromagnetic valve () assembly for opening or closing the chamber at a pre-set frequency. The device for assisting a cough according to the present invention may produce a high cough pressure and thus form a strong cough airflow to loose and cough the lung mucus out of the airways, and may prevent the collapse of the patient's airway caused by the rapid release of the cough pressure. 1. A device for assisting a cough comprising:a housing;a chamber formed in the housing;a mouthpiece communicating with the chamber and exposed out of the housing; andan electromagnetic valve assembly for opening or closing the chamber at a pre-set frequency, wherein the electromagnetic valve assembly comprises a reciprocally movable plunger, a coil assembly fixed in the housing around the plunger, a stopcock disposed at a free end of the plunger, and a holding member for holding the electromagnetic valve assembly in closed position.2. (canceled)3. The device for assisting a cough according to claim 1 , wherein an airflow outlet is formed in the wall of the chamber and the stopcock is arranged to engage separably with the airflow outlet to close or open the airflow outlet.4. The device for assisting a cough according to claim 3 , wherein the holding member for holding the electromagnetic valve assembly in closed position is a permanent magnet disposed around the plunger to generate a holding force for holding the stopcock to engage with the airflow outlet.5. The device for assisting a cough according to claim 3 , wherein the holding member for holding the electromagnetic valve assembly in closed position is a spring for pushing the stopcock towards the airflow outlet.6. The device for assisting a cough according to claim 1 , wherein a fan is disposed adjacent to the coil ...

APPARATUS AND METHOD FOR IMPROVED ASSISTED VENTILATION

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. 1inserting a ventilation device within a natural respiratory opening of the individual by advancing a working end of the ventilation device within a body passageway of the individual, where the working end includes a distal opening fluidly coupled to a first lumen and a medial opening fluidly coupled to a second lumen;drawing suction through the distal opening and maintaining the suction for a period of time; selecting the first lumen as the ventilation lumen if the tissue of the body passageway does not seal the first opening; or', 'selecting the second lumen as the ventilation lumen if the tissue of the body passageway seals the first opening; and, 'determining a ventilation lumen from the first lumen or second lumen by'}ventilating the patient through the ventilation lumen.. A method for ventilating an individual, the method comprising: This application is a continuation of U.S. patent application Ser. No. 14/981,465 filed Dec. 28, 2015, which is a continuation of U.S. patent application Ser. No. 14/296,298 filed Jun. 4, 2014, now U.S. Pat. No. 9,220,858, which is a continuation of U.S. patent application Ser. No. 13/659,699 filed Oct. 24, 2012, now U.S. Pat. No. 8,776,796, which claims priority to U.S. Provisional Application No. 61/569,169 filed Dec. 9, 2011, the content of each of which is incorporated herein by reference in its entirety.Intubation is the placement of a tube of an intubation device into an airway lumen of the body of a patient to provide assisted ventilation of the lungs to maintain a supply of oxygen to the blood in those cases where the patient is unable to ...