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| Number | Title | Issue Date |
| 8156937 | Portable ventilator system A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that intera... | 04/17/2012 |
| 8047205 | Gas-mixing device for respirators A gas-mixing device for respirators can be used both in stationary operation and in mobile operation. The gas-mixing device has a storage tank (5), into which compressed air and oxygen can be introduced by dispensing valves (3, 8). In addition, a blowe... | 11/01/2011 |
| 7849854 | Portable drag compressor powered mechanical ventilator A ventilator device and system comprising a rotating compressor, preferably a drag compressor, which, at the beginning of each inspiratory ventilation phase, is accelerated to a sufficient speed to deliver the desired inspiratory gas flow, and is subsequently stoppe... | 12/14/2010 |
| 7621271 | Device for the measurement of oxygen consumption Device for the measurement of oxygen consumption which, by use of a mixing chamber of small dimensions, allows compensation of the time delay between the measurement of the ventilation VE and that of average oxygen concentration of the exhaled air volume ... | 11/24/2009 |
| 7543584 | Powered air purifying respirator system and breathing apparatus A combination of an SCBA system for providing bottled air to a user and a PAPR system for purifying ambient air for use by a user wherein the two systems are used alternatingly depending on the contaminated condition of the ambient air and the oxygen content of the ... | 06/09/2009 |
| 7431753 | Oxygen enrichment apparatus An oxygen enrichment apparatus includes a main body including an oxygen enriching unit and a pump unit for supplying oxygen-enriched air obtained by the oxygen enriching unit to a predetermined place; a ventilating unit for suctioning exterior air into the main body... | 10/07/2008 |
| 7431032 | Low power ambulatory oxygen concentrator An oxygen concentrator comprises a vacuum swing adsorption (VSA) gas separation system which includes a cartridge containing a mass of adsorbent material for producing oxygen, a drive which activates the gas separation system, and a power source comprising a mass. A... | 10/07/2008 |
| 7396390 | Oxygen enrichment apparatus An oxygen enrichment apparatus includes an oxygen enriching unit for generating oxygen-enriched air and a discharge unit for discharging the oxygen-enriched air transferred from the suction unit. The oxygen-enriched air generated by the oxygen enriching unit has an ... | 07/08/2008 |
| 7387123 | Gas identification system and volumetrically correct gas delivery system A gas delivery system, having a gas identification, by which a gas supplied to the gas delivery system is identified, a blender, blending oxygen and the gas to provide a gas mixture with an oxygen flow rate set up by an operator, and at least one flow sensor, to mea... | 06/17/2008 |
| 7350521 | Simplified dual mode medical oxygen concentrator Oxygen concentrator system having a portable oxygen generator unit adapted to generate a non-humidified oxygen-rich gas and a stationary base unit adapted to generate a humidified oxygen-rich gas, wherein the portable oxygen generator unit and the stationary base ar... | 04/01/2008 |
| 7343918 | Breathing gas feed assembly for aircraft flight crew, and a stowage box for an emergency breathing mask A breathing gas feed assembly for the flight crew of an airplane comprises an emergency breathing mask and a stowage box for the mask. The box is adapted to receive the mask diagonally and it is closed by two doors hinged about respective hinge axes situated on two ... | 03/18/2008 |
| 7341072 | Oxygen supply system having a central flow control unit The present invention is a centralized flow control unit (CFCU) for regulating oxygen flow in a multiple user emergency oxygen distribution system in passenger aircraft. Upon activation, the CFCU initially allows unregulated flow of oxygen to surge into the distribu... | 03/11/2008 |
| 7335243 | Modular biosafety containment apparatus and system The present invention relates to apparatus and systems for isolating hazardous agents and organisms from their handlers and the public. In particular, the present invention relates to modular negative pressure biological containment chambers. ... | 02/26/2008 |
| 7320320 | Determination of patency of the airway 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 flow signal. The determination of an apnea is performed by calculating th... | 01/22/2008 |
| 7284554 | Continuous positive airway pressure device A continuous positive pressure device which includes an air reservoir connected to a delivery device (e.g. mask or mouthpiece) by an air supply hose; the reservoir includes a rigid protective housing and a plate which applies uniform pressure on the reservoir irresp... | 10/23/2007 |
| 7273051 | Dual mode medical oxygen concentrator Oxygen generation system having a portable oxygen generator unit including a portable air separation device for the generation of an oxygen-rich gas, a primary gas pump including means to supply air to the portable air separation device, a primary motor to drive the... | 09/25/2007 |
| 7246620 | System for monitoring pilot and/or passenger oxygen saturation levels and estimating oxygen usage requirements A noninvasive system for monitoring the oxygen saturation level of a person subjected to reduced atmospheric pressure for avoiding hypoxemia. The system monitors a person's oxygen saturation level, comparing the saturation level to a predetermined level. When the me... | 07/24/2007 |
| 7224285 | Gas monitor using electrochemical cell and method of operating A method and apparatus for gas detection uses a sensor such as an electrochemical (EC) cell and includes a feedback control loop to control a pump to establish a first predetermined gas flow rate to the EC cell. The concentration of the gas at the first predetermine... | 05/29/2007 |
| 7222624 | Dual sensor oxygen therapy device Methods and apparatus for supplying respiratory oxygen to a patient where the oxygen flow is monitored so as to be control and conserve in response to the patient's pulse rate and blood hemoglobin saturation. ... | 05/29/2007 |
| 7222622 | Gas-dispensing device with self-contained gas container having a diffusion membrane A gas-dispensing device (2) for dispensing a gas into breathing gas, comprising a membrane (6) through which the gas can diffuse into the breating gas, is described. The gas-dispensing device (2) is simple and reliable because it contains a self... | 05/29/2007 |
| 7207332 | Apparatus for administering a gas to a person or an animal An apparatus (1) for administering a gas to a person or an animal, is provided with a chamber (9) for receiving a quantity of gas to be administered. The chamber is provided with a gas line (3) for supplying gas from a source to the chamber (... | 04/24/2007 |
| 7207392 | Method of preventing fire in computer room and other enclosed facilities Methods are provided for a provision of hypoxic hypercapnic and hypoxic hypocapnic fire-extinguishing compositions for continuous use in human occupied environments. Breathable fire preventative atmospheres can be created using air separation and having increased or... | 04/24/2007 |
| 7204249 | Oxygen conserving device utilizing a radial multi-stage compressor for high-pressure mobile storage An oxygen concentrator is utilized in combination with a compressor, preferably a radial compressor, to provide a highly enriched and compressed oxygen gas in a mobile container such as a gas cylinder. The combination and method of production provides for the facile... | 04/17/2007 |
| 7204248 | Fiberoptic nebulizer A nebulizer uses air or preferably oxygen to aerate and transport an anesthetic for providing topical anesthesia to the airway passages of a patient undergoing analysis or treatment by any of several medical instruments used to traverse the airway passages. The nebu... | 04/17/2007 |
| 7179322 | Oxygen and nitrogen enriched atmospheres in aircraft A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber membranes used to separate normal air into oxygen rich and nitrogen rich f... | 02/20/2007 |
| 7166148 | Gas separation membranes A method of producing composite, hollow fibre gas separation membranes, wherein external surfaces of the porous hollow fibre tubes used in the construction of the membranes are subjected to a modification technique before the external surfaces are coated with a thin... | 01/23/2007 |
| 7159587 | Respiratory mask having gas washout vent and gas washout vent assembly for respiratory mask The present invention provides a vent assembly suitable for use with a respiratory mask of the type used in CPAP treatment. In one embodiment the vent is made of a thin air permeable membrane. Generally, the membrane is thinner than 0.5 mm. The membrane can be made ... | 01/09/2007 |
| 7156099 | Nostril filtering system A nostril filtering system is described for providing clean, filtered air for breathing in through the nose. The filtering system includes a soft, pliable filter material held in a flexible frame that can be inserted into each nostril of a user. In the case of foul ... | 01/02/2007 |
| 7144198 | Diver information processing apparatus and method of controlling same To provide safety-ensuring information that is considered to enhance safety in accordance with the movement of the diver's body in the water. An information processing device is provided that is worn on the diver, and has an external sensor unit 5 to measure ... | 12/05/2006 |
| 7137389 | Method and apparatus for determining instantaneous inspired volume of a subject during ventilatory assistance The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor (16) receives an airflow signal from a pressure transducer (1... | 11/21/2006 |
| 7128578 | Interactive simulation of a pneumatic system A method, system and apparatus for simulating a pneumatic system. The method can include dividing a pneumatic system into logical component sections. Each of the logical component sections can be visually rendered in a graphical user interface. Also, user modificati... | 10/31/2006 |
| 7121276 | Personal oxygen concentrator An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen separator for ambulatory use. ... | 10/17/2006 |
| 7117438 | Graphic user interface for a patient ventilator The invention is directed to a ventilation control system for controlling the ventilation of a patient. The ventilation control system utilizes a user-friendly user interface for the display of patient data and ventilator status, as well as for entering values for v... | 10/03/2006 |
| 7100603 | System for providing protection from reactive oxygen species Method, apparatus and breathable compositions for protecting a person from reactive oxygen species in the body are described. The invention involves providing a person with a breathing gas composition comprising at least one fuel gas compound. Apparatus and methods ... | 09/05/2006 |
| 7100606 | Method of maintaining constant arterial PCOand measurement of anatomic and alveolar dead space A method to maintain isocapnia for a subject. A fresh gas is provided to the subject when the subject breathes at a rate less than or equal to the fresh gas flowing to the subject. The fresh gas flow equal to a baseline minute ventilation minus a dead space gas vent... | 09/05/2006 |
| 7096865 | Personal gas supply delivery system A supply of gas such as oxygen is provided to a person in need of such gas supply. The delivery system includes an alarm to alert the recipient of the gas or another when and if the gas supply is disrupted. The alarm system preferably includes a reset and on-off swi... | 08/29/2006 |
| 7089939 | Gas delivery connection assembly An anti-asphyxia valve is adapted to, in use, be disposed between a patient and structure to deliver a breathable gas to the patient. The valve includes a housing having an interior, at least one port to provide fluid communication between the housing interior and a... | 08/15/2006 |
| 7077133 | Oxygen enriching apparatus, controller, and recording medium A small oxygen enriching apparatus which can supply oxygen-enriched gas at high flow rate without imparting unnatural sensation to a user, as well as a controller and recording medium therefore. In step 100, a judgment is made as to whether a flow rate set by... | 07/18/2006 |
| 7055780 | Life support systems for aircraft A life-support system for an aircraft B includes a first oxygen supply apparatus A operable to provide a limited supply of first product gas being one of pure oxygen and oxygen enriched gas, to a breathing gas supply apparatus 12, 13, 14, and a second oxygen ... | 06/06/2006 |
| 7051731 | Oxygen delivery system A portable gas delivery system is provided to provide oxygen or other gaseous mixture for use in emergencies, athletic events, and similar activities. The portable gas delivery system includes a regulator with an accumulator chamber disposed within the regulator and... | 05/30/2006 |
