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7331344 |
Breathing device
A breathing device for assisting patients to breath by maintaining positive airway pressure during the breathing cycle comprises a breathing channel in fluid communication with an exhaust channel...
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7328703 |
Oxygen delivery cannula system that improves the effectiveness of alveolar oxygenation
The pulmonary oxygen flow control system delivers oxygen from a source of pressure to a nasal cannula worn by the patient. Between the source and the nasal cannula is a pendant flow structure which...
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7191780 |
Continuous high-frequency oscillation breathing treatment apparatus
A continuous high-frequency oscillation breathing device delivers therapy during both inhalation and exhalation in order to assist in clearings secretions the lungs. A fixed shrouded-venturi...
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7172557 |
Spirometer, display and method
A spirometer coupled to a manual resuscitator. An air tube in the spirometer has a converging section, a laminar flow section and a pressure recovery section. A microcontroller and a display of...
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7114497 |
Method and system of individually controlling airway pressure of a patient's nares
A method and system of individually controlling positive airway pressure of a patient's nares. Some exemplary embodiments may be a method comprising applying therapeutic gas pressure within a first...
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7100800 |
Gas dosing apparatus and a method of dosing pre-set quantities of gas
An apparatus and method of dosing pre-set quantities of gas, wherein the addition of known quantities of gas is required. The apparatus is designed to dosify gases in variable quantities, with...
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7089940 |
Balanced valve device and breathing apparatus comprising such valve device
A valve device, particularly for a breathing regulator for divers, including an inlet chamber which can be connected to a source of gas under super-atmospheric pressure, and an outlet chamber which...
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7089938 |
Pneumatic oxygen conserving device
A pneumatic oxygen conserving device uses a portion of gas exiting its main valve to interrupt delivery of the gas. Gas is dispensed upon inhalation and is interrupted by means of suitable...
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6883517 |
Downdraft nebulizer
A pneumatic nebulizer for the delivery of medications that produces aerosol mist in a downward direction. A gas inlet introduces a high velocity gas that passes through a venturi orifice producing...
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6814075 |
Respiratory assistance device
A respiratory assistance device may include a tube that forms a main channel for connecting a distal end of the tube to a respiratory airway of a patient, such that the main channel connects the...
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6729334 |
Nebulizing catheter system and methods of use and manufacture
A method and apparatus for delivering a medicine to a patient via the patient's respiratory system with control and efficiency. A nebulization catheter is positioned in the patient's respiratory...
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6718979 |
Oxygen mask assembly
An oxygen mask assembly including an oxygen dilutor assembly with air inlet apertures located in a top wall thereof for diluting the oxygen flowing therethrough. In one embodiment, the mask...
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6694976 |
Oscillating air pressure generator, diaphragm unit, and high-frequency artificial respiration apparatus using the same
An artificial respiration apparatus includes a frame having a positive pressure input port, a negative pressure input port, an atmospheric port and an output port. A switching member switches...
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6655382 |
Spontaneous breathing apparatus and method
A spontaneous breathing apparatus and method. The apparatus includes: a source of oxygen containing gas ( 7 ); a catheter ( 5 ) in flow communication with the source of oxygen containing gas ( 7 )...
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6634356 |
Continuous positive airway pressure controller
A CPAP controller that supplies oxygen enriched air to a respiratory circuit that utilizes a venturi-jet arrangement within a chamber, which enriches ambient air. Ambient air is drawn into the...
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6622743 |
Surge prevention device
A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure oxygen cylinder and a medical...
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6609518 |
Breathing aid device
An intermittent positive pressure breathing device for neonatal infants. The device is connected to a supply of pressurized oxygen supplied through a first conduit. The first conduit terminates in...
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6595203 |
Apparatus for administering intermittent percussive ventilation and unitary breathing head assembly for use therein
A unitary breathing head device for administering intermittent percussive ventilation to a patient having an airway and for use with an IPV device having a source of continuous gas flow and having...
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6591835 |
Pneumatically controlled multifunction medical ventilator
A multiple functionality pneumatically controlled medical ventilator provides precision regulation of tidal/forced breathing, and continuous positive airway pressure (CPAP)-based spontaneous...
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6571796 |
Tracheal pressure ventilation respiratory system
Embodiments of the present invention described and shown in the specification and drawings include a respiratory system for automatically and variably controlling the supply of a pressurized...
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6443154 |
Apparatus for the supply of a breathing gas
An apparatus for supplying a breathing gas to a patient has a gas supply for generating a flow of breathable gas during an inspiration and an expiration phase of a patient breathing cycle. An...
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6435183 |
Flow sensing device
A fluid sensing device includes a venturi tube and a fluid resistive element. The venturi tube defines a first open end through which a flow of fluid enters, a second open end from which fluid flow...
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6273087 |
Respiratory aid
A tubular respiratory assistance device which forms the wall of a main channel and is intended to be connected by its distal end to a patient's airway, so that the main channel connects the...
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6173711 |
Respiratory assistance device
A respiratory assistance device, includes an inhalation branch (2) which is permanently connected, at its upstream end, to a first source (1) of a flow of pressurized gas and, at its downstream...
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6152132 |
Inspiratory tube for a ventilator
An inspiratory tube intended to serve as at least part of an inspiratory line in a ventilator, has a tube wall, a distal end, a proximal end, a gas flow channel for carrying a flow of breathing gas...
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6095141 |
Methods and apparatus for delivering aerosolized medication
A metered dose inhaler (10) for use with a pressurized aerosol canister (18) includes a housing (12) defining a conduit (16) with a mouthpiece (56), and an actuator (26) with a nozzle discharge...
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6085746 |
Oscillating ventilator apparatus and method
An improved high frequency oscillating ventilator apparatus and method for providing an increased volume of gas flow into a patient and reducing the noise generated by the ventilator. A plurality...
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6067022 |
Low input pressure alarm for gas input
The invention provides an in-line low supply pressure alarm device powered solely by supply flow of pressurized gas from a gas supply for providing an alarm signal when supply gas pressure is below...
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6009869 |
Supersonic nozzle nebulizer
A nebulizer for entraining liquid in a flow of carrier gas from a carrier gas source at a select pressure includes a nozzle defining a passage which is circular in cross section and includes a...
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5979444 |
Portable CPR breathing apparatus
A breathing assisting device. The device includes a face mask and an oxygen dispenser which alternately injects oxygen (i) into the mask during an inhalation phase, and (ii) into a conveying piece...
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5975077 |
Method and apparatus for assisting in breathing
Apparatus for preventing lung collapse including an ambient air passageway, an airway injecting gas in fluid communication with nostrils of a patient and aerodynamically designed passageways for...
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5697361 |
Induction pump method for increased breathable air flow of cooled and reduced humidity air
This invention increases the flow of breathable air from an air pump to an enclosure such as a hood or enclosed structure without requiring an increase in the air pump output. The invention...
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5694924 |
Anesthetic administration system with active regulation of the volume of the gas reservoir during a breathing cycle
An anesthetic system, primarily intended for a closed breathing circuit, has an inspiratory line, an expiratory line and a connecting line which form a closed gas line system with the inspiratory...
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5690097 |
Combination anesthetic mask and oxygen transport system
A system to provide supplemental oxygen to a patient via an oronasal mask and an oxygenation adaptor, the adaptor providing for countercurrent flow of fresh (oxygen-enriched) gas and exhaled gas...
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5676132 |
Pulmonary interface system
A device for sensing the respiratory air of a patient. The device includes a venturi tube through which the patient inspires and expires, the tube having a constricted midportion. The tube also has...
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5666946 |
Apparatus for delivering drugs to the lungs
Apparatus for delivering drugs to the lungs from an ultrasonic nebulizer by inspiration using a ventilator includes a flow system in which the nebulizer is connected in parallel with the series...
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5664563 |
Pneumatic system
A pneumatic system is provided for a ventilator is provided for controlling inspired and expired patient gas flow during respiratory therapy. The pneumatic system includes a pneumatic circuit for...
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5645055 |
Oxygen breathing controller
The oxygen breathing controller of the present invention provides a first inlet regulator and a second inlet regulator. The first inlet regulator is provided with a poppet with a diaphragm around...
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5606968 |
Tracheal or tracheostomy tube and systems for mechanical ventilation equipped therewith
The invention relates to a double-barrelled tube with a respiratory (11) and an inhaling (12) passage for the mechanically controllable respiration of a patient in which the inhaling passage...
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5542416 |
Apparatus for assisting ventilation including reduced exhalation pressure mode
The invention provides apparatus for assisting with the ventilation of a ient, which includes a source (10) of pressurized gas, a transmission circuit including a main inhalation conduit (14)...
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5520170 |
Automatic resuscitator
An automatic resuscitation apparatus for administering a breathable gas to a patient that can be held in one hand, and containing the necessary valves and controls, and operable in automatic mode,...
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5515843 |
Three-layer helmet assembly with breathing gas throttle
A helmet includes a casing engaged in the helmet for accommodating air or pressurized oxygen, a mask secured to the helmet, an inlet pipe connecting the casing to the mask for supplying air into...
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5492109 |
Liquid ventilator with venturi-inducing patient connector
An involuntary respiratory apparatus for perfusing and entraining a breathable liquid from the lungs of a patient. The system includes a number of components which are interconnected by a conduit...
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5460174 |
Oxygen supplying system having flow control throttle
An oxygen supplying system includes a mask, a bottle for accommodating oxygen, an inlet pipe connecting the bottle to the inlet of the mask for supplying oxygen into the mask, and a throttle device...
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5452713 |
Portable ventilator with reversible inlet fitting
A portable ventilator having axially aligned inlet and outlet ports, an inlet fitting adapted for alternative connection to the inlet port in either of two 180° reverse orientations. In one such...
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5427104 |
Apparatus and process for injection of a gas
Apparatus and process for injection of a gas, preferably carbon dioxide, comprising a source of the gas connected to at least two conduits (C) each provided with a control valve (EV) and a control...
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5423313 |
Respirator intended for connection to human or animal airways
This invention comprises a respirator intended for connection to human or animal airways. A first device for supplying and receiving respiratory gas to and from the airways so that the lungs can be...
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5390665 |
Anaesthetic vaporizer having a pressure sensitive diaphragm connecting the anaesthetic reservoir and vaporizing chamber
An anaesthetic vaporizer includes a passageway 10, 30 for directing carrier gas through a fixed laminar restrictor 32 to a vaporizing chamber 26. Liquid anaesthetic agent is injected into the...
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5373841 |
Self-operated nasal humidifier
A self-operated nasal humidifier comprising a container adapted to hold liquid heated and a lid detachably secured to the container by means of cooperating threads or other means. The lid houses a...
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5372129 |
Oxygen dilution device for maintaining an essentially constant proportion of primary gas in a diluent gas
There is disclosed a device adapted to accurately deliver a selected concentration of a primary gas in a diluent gas, such as ambient air. The device of the invention includes a hollow diluter body...
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