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5901704 Sleep apnea treatment apparatus with minimum leakage assurance circuit  
Improved methodology and apparatus for the clinical study and treatment of sleep apnea which incorporates one or more of the following features: (1) application of mono-level, alternating high and...
5899203 Interactive respiratory regulator  
An interactive respiratory regulator comprising a recording device recording the respiratory pattern of a user and issuing a corresponding respiratory signal, an instruction signal generator for...
5896854 Tracheal gas insufflation system  
A system for flushing carbon dioxide from ventilation equipment so that the carbon dioxide is not rebreathed by the patient. Flushing is achieved by providing tracheal gas insufflation only during...
5884625 Oral appliance for delivering gas to the retroglossal area  
An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The...
5884622 Automatic determination of passive elastic and resistive properties of the respiratory system during assisted mechanical ventilation  
Passive elastic and resistance values for a particular patient are estimated during proportional assist ventilation and other forms of assisted ventilation to permit reliable adjustment for...
5881724 Method and device for controlling a respirator for therapeutic treatment of sleep apnea  
A method of controlling a respirator for therapeutic treatment of sleep aa includes the step of continuously measuring a) a phase angle of a time difference between respiratory flow and...
5878744 Ventilator system and method of operating a ventilating system  
In a ventilator system and a method of operating the ventilator system, the ventilator system has a ventilator and a connection system for connecting the ventilator system to a patient. Parameters...
5878743 Pressure sensitive flow control valve  
A pressure sensitive valve for a positive pressure airway system which allows bi-directional flow with low resistance. When positive pressure from the air generator of the positive pressure airway...
5875777 Ventilator and method for controlling same to reproduce a manually generated breathing pattern  
In a ventilator system and a method for controlling the ventilator system, a hand ventilator is connectable to a patient to impose a manually generated breathing pattern on the patient. A...
5873361 Method of preventing the formation of a dangerous underpressure in a respiratory system  
A method of preventing the formation of dangerous underpressure in a respiratory system,, which comprises a respirator (1) connected to the patient, and a sampling device (11) and a gas analyzer...
5865174 Supplemental oxygen delivery apparatus and method  
An apparatus conserves oxygen delivered from a supply (28) to a patient through a cannula (44) by providing oxygen delivery selectively in accordance with the physiological requirements and...
5865173 Bilevel CPAP system with waveform control for both IPAP and EPAP  
A bilevel continuous positive airway pressure (CPAP) respiratory therapy system which applies a prescribed inspiratory positive airway pressure (IPAP) to a patient's respiratory system during...
5857459 Boxless measurement of thoracic gas volume  
A portable apparatus for measuring the thoracic lung volume of a patient without enclosing the patient in a sealed chamber, comprising first and second impedance belts, a flow meter, shutter and a...
5857460 Gas-sensing mask  
A gas sensing mask and system which senses and indicates the presence or absence of a selected respired gas. The mask includes a non-porous housing that is sized to seat over the nose and mouth of...
5845636 Method and apparatus for maintaining patient airway patency  
An apparatus and method for facilitating the respiration of a patient are disclosed which are particularly useful in treating mixed and obstructive sleep apnea and certain cardiovascular...
5839434 Method and apparatus for dispensing respiratory gases  
The invention relates to a respiratory gas dispensing apparatus for delivering a precise volume of respiratory gas to a patient within less than about half of an inspiratory effort comprising a...
5839430 Combination inhaler and peak flow rate meter  
The utility and elements of a metered dose inhaler, a spacer device and a peak respiratory flow rate meter are combined in a single personally portable device. The present device provides a tool...
5839429 Method and apparatus in connection with an inhaler  
An apparatus for training a person to use an inhaler comprises such an inhaler connected to a processing device. The inhaler comprises means for detecting when the inhaler is activated for making...
5839433 Nitric oxide treatment  
The invention is a method and apparatus for treatment in which nitric oxide is supplied from a source to a patient for inhalation incorporating a regulator to control the flow of nitric oxide from...
5832916 Method and system for checking the operability of electrical-based components in a breathing equipment  
A method of verifying and indicating proper or improper functioning of breathing apparatus for an irrespirable environment. The breathing apparatus includes gas supply for supplying a user with...
5823187 Sleep apnea treatment apparatus with a therapy delay circuit arrangement  
Improved methodology and apparatus for the clinical study and treatment of sleep apnea which incorporates one or more of the following features: (1) application of mono-level, alternating high and...
5823178 Disposable package for use in aerosolized delivery of drugs  
A disposable package, tape, and cassette are provided which makes it possible to hold and disperse therefrom liquid, flowable formulations including aqueous formulations (solutions or dispersions...
5819726 Method for the delivery of aerosolized drugs to the lung for the treatment of respiratory disease  
A method of treating patients suffering from a respiratory disease using a programmable, hand-held, self-contained drug dispensing device is disclosed. A patient's inspiratory flow rate is...
5813400 Breathing apparatus  
Breathing equipment for use under water, or in a non-respiratory atmosphere, and including a breathing mask (1), a mouth-piece or the like, and a respiratory circuit (2) with a volumetrically...
5813397 Delivery of aerosol medication for inspiration  
Apparatus and methods for delivering an amount of aerosolized medicine for inspiration by a patient in response to the occurrence of appropriate delivery point or points in the patient's detected...
5806514 Device for and method of dive monitoring  
Device for and method of dive monitoring, wherein the pressure in a diving flask of a breathing equipment and the ambient pressure which the diver is exposed to at the respective water depth are...
5797393 Method for controlling the respirating phase in a ventilating apparatus  
The invention is directed to a method for adjusting the respirating pressure during respirating phases in a ventilating apparatus. The method is improved by providing for a volume-controlled...
5794615 Method and apparatus for providing proportional positive airway pressure to treat congestive heart failure  
A system including methods and apparatus for treatment of Congestive Heart Failure. The system involves applying separate and independent gains to flow rates of pressurized gas delivered to a...
5755218 Method and apparatus for releasing a controlled amount of aerosol medication over a selectable time interval  
A portable, battery powered, hand-held system for releasing a controlled dose of aerosol medication for inhalation by a patient including a durable body and a medication cassette inserted in the...
5755224 Cylinder-mounted oxygen management device  
An oxygen management device adapted to mount on a post on a compressed oxygen cylinder. The device includes a manifold block which is attached to the oxygen cylinder post. A pressure regulator is...
5752509 Artificial ventilation system  
In an artificial ventilation system and a method for controlling the artificial ventilation system for obtaining an optimized artificial ventilation of a lung system of a patient, optimal...
5743253 Method and apparatus for maintaining a defined respiratory gas flow pattern to a subject by identifying a transfer function of the connection system  
A ventilator system has different sub-systems, such as a connection system, which influence the flow of breathing gas supplied to a patient's respiratory system. The flow pattern of the breathing...
5743252 Method for releasing controlled amount of aerosol medication  
A method for releasing a controlled amount of aerosol medication is disclosed. The method of the invention is preferably used in connection with a portable, battery-powered, hand-held system for...
5740796 Ventilator system and method for operating same  
A ventilator system has an inspiratory line, an inspiratory pressure meter arranged to sense pressure in the inspiratory line, and expiratory line, an expiratory pressure meter arranged to sense...
5740797 Cardiac synchronized ventilation  
A cardiac synchronized ventilator includes a balloon, a balloon pump arranged to inflate and deflate the balloon in synchrony with cardiac function, and a conversion unit. The conversion unit...
5738090 Respiratory system for determining an opening pressure of a long system and maintaining the lung system open  
An arrangement for determining an opening pressure of a lung has a regulating unit which can deliver inspiration pulses to a patient's lung system, a blood gas analyzer for measuring the partial...
5735263 Lockout device for controlled release of drug from patient-activated dispenser  
A method of controlling access to a drug in an aerosol drug delivery device by an electronic lock and key means is disclosed. Access is limited to the intended user by providing the intended user...
5735268 Intermitten gas-insufflation apparatus and method therefor  
An intermittent gas-insufflation apparatus insufflates a quantity of the gaseous fluid into an entrance of a respiratory system of a breathing patient during an exhalation interval of an immediate...
5735267 Adaptive control system for a medical ventilator  
A control system for a single-valve controlled medical ventilator adaptively invokes separate flow delivery or flow exhaust control functions in response to the sensed dynamic state of the...
5724957 Intrapulmonary delivery of narcotics  
A method of pain control is provided by the intrapulmonary delivery of a pharmaceutically active pain relief formulation. The formulation is automatically released from a hand-held,...
5722393 Exhaled gas cooling device  
An improved ventilator apparatus and method includes a ventilator having an inspiration side for delivery of air to a patient and an expiration side for receiving air from the patient, the...
5720709 Apparatus and method for measuring respiratory airway resistance and airway collapsibility in patients  
An apparatus for measuring the airways resistance of a person by short-time occlusion of inhalation, includes a face mask having an inlet channel and an outlet channel, the latter provided with an...
5720278 Inverse proportional assist ventilation apparatus  
A breathing apparatus for supplying a supportive inspiration pulse in response to a sensed inhalation effort of a subject connected to the apparatus has a supportive response controlled so that...
5715812 Compliance meter for respiratory therapy  
A respiratory apparatus (10) operable for delivering a breathable gas to the airway of a patient includes a status monitor (24,26) for determining the status of usage of the unit by the patient...
5713349 Inhalation therapy  
This invention relates to a device for controlling the delivery of therapeutic respiratory agents to the respiratory system of a patient. The device includes a drug delivery means which is...
5709202 Intrapulmonary delivery of aerosolized formulations  
Liquid, flowable formulations including aqueous formulations of a pharmaceutically active drug are packaged in individual dosage unit containers which containers are interconnected to form a...
5706830 Liquid ventilator system and use thereof  
The subject invention provides a liquid ventilator system which comprises a source of oxygenated liquid, an inspiratory conduit, a bifurcated bronchial tube, and a pump. The bifurcated bronchial...
5706801 Sensing and communications system for use with oxygen delivery apparatus  
An oxygen delivery apparatus is used to supply oxygen-enriched air to a patient via a diffuser. A communication module containing an in-line flowmeter and oxygen concentration sensor is provided...
5705735 Breath by breath nutritional requirements analyzing system  
A system for real time, breath by breath sampling of a patient receiving up to 100 percent oxygen to determine nutritional requirements of the patient through indirect calorimetry includes a...
5704345 Detection of apnea and obstruction of the airway in the respiratory system  
Methods and apparatus for determining the occurrence of an apnea, patency and/or partial obstruction of the airway are disclosed. Respiratory air flow from a patient is measured to give an air...