Respironics Oxytec, Inc

Koninklijke Philips Corporation N.v.

Ric Investments, Inc.

Carefusion 2200, Inc.

Picocyl

Valley Inspired Products, LLC

Respironics, Inc.

Chart Inc.

Minnesota Valley Engineering, Inc.

Chad Therapeutics, Inc.

Peter L Bliss

Scott Cameron Halperin

Charles R Atlas

Jack Robert Auld

Matthew Braden Flowers

Matthew D McCawley

Robert William Murdoch

Greg Voss

Michael S Smith

Scott Carson Halperin

Robert W McCoy

Mareike K Klee

Rainer Hilbig

Paul Van Der Sluis

Achim Gerhard Rolf Koerber

Peter Douglas Hill

Wilhelmus Cornelis Keur

Timothy A Neeser

Joseph Thomas Dolensky

Robert Romano

Matthew Douglas Mccawley

Alexander B Adams

Willard S Davidson

Charles R Altas

Scott Halperin

Gregory Voss

Canisters are provided that include a cylindrical body and a cap welded to the body to define a cavity filled with carbon dioxide or other fluid. The canisters may be loaded into a medical device, e.g., to provide an energy source for operating the device. Methods for making such canisters are also provided.

Gas canisters and methods for making them

The invention relates to an oxygen separation device (), comprising a gas inlet () at a primary side for guiding a flow of oxygen comprising gas into the oxygen separation device () and having a gas outlet () at a secondary side for guiding a flow of oxygen enriched gas out of the oxygen separation device (), at least one oxygen separation area () with an oxygen separation sorbent () being capable of separating oxygen from an oxygen comprising gas by sorbing at least one component of the oxygen comprising gas apart from oxygen and being contaminatable by a contaminant, and a decontamination area () with a decontamination material () for decontaminating the oxygen comprising gas from at least one contaminant, wherein the oxygen separation area () and the decontamination area () are fluidly connected by a spacer () comprising at least one diffusion reducing channel (), wherein the spacer () has a value of diffusion reduction rof r&#x3e;1. Such an oxygen separation device () allows () provides significant advantages with respect to maintenance. The invention further relates to an oxygen separator () and to a method of generating oxygen from an oxygen comprising gas.

Oxygen separator and method of generating oxygen

The present invention describes systems and methods to provide variable flow oxygen therapy. An exemplary embodiment of the present invention provides a method of oxygen therapy involving delivering oxygen-enriched gas to a patient during a first portion of a breathing cycle at a first flow rate. Furthermore, the method of oxygen therapy involves delivering oxygen-enriched gas to the patient during a second portion of the breathing cycle at a second flow rate, where the second flow rate is greater than zero and less than the first flow rate.

Variable flow oxygen therapy

A user interface for a portable oxygen concentration system. The user interface includes a touch screen and a controller coupled to the touch screen. The controller is configured to detect when a first portion of the touch screen is contacted by a user, and thereafter operate the touch screen for displaying an icon on a second portion of the touch screen.

User interface for a portable oxygen concentrator

A respiratory therapy system that includes a gas delivery device enabled to deliver a quantity of oxygen-enriched gas and a quantity of insufflation gas is disclosed. The respiratory therapy system further provides a transtracheal catheter coupled to the gas delivery device. Additionally, the gas delivery device is enabled to deliver the quantity of insufflation gas during a first portion of a breathing cycle of a patient and to deliver the quantity of oxygen-enriched gas during a second portion of the breathing cycle.

Phasic respiratory therapy

A portable oxygen concentrator includes a pressure swing absorption system defined by a relatively rigid housing adapted to generate a flow of oxygen enriched gas and a battery adapted to provide power to the pressure swing absorption system. The oxygen concentrator has a total weight of less than about 10 lbs, has a maximum flow of 100% Oequivalent gas of about 0.9 lpm, has a total volume less than about 800 in, and gas a battery life of at least about 8 hours. The present invention also using a liquefaction or transfill system in combination with such an oxygen concentrator.

Portable oxygen concentrator

A gas blender with auxiliary mixed gas outlet for mixing a primary gas, generally air, and a secondary gas, generally oxygen, to obtain a mixed gas having several controlled characteristics. The gas blender may be incorporated into a Continuous Positive Airway Pressure (CPAP) device. The gas blender controls the mixing to produce the mixed gas having a predetermined mixture setpoint, generally an oxygen percentage, and a predetermined control setpoint, generally a pressure setpoint or flow rate setpoint. The gas blender provides an auxiliary mixed gas source for use by an auxiliary piece of equipment such as a nebulizer or resuscitation bag. The gas blender includes a primary gas inlet passageway, a secondary gas inlet passageway, a gas mixing apparatus, a mixed gas distribution passageway with an auxiliary mixed gas outlet, a gas sensor, a delivery sensor, a mixed gas delivery control valve, a mixed gas controlled passageway, and a controller.

Gas blender with auxiliary mixed gas outlet

A portable oxygen concentrator includes a reservoir adapted to store oxygen-enriched gas, a delivery valve adapted to communicate with the reservoir, a pressure sensor adapted to measure a reservoir pressure within the reservoir and to measure a pressure drop across the delivery valve, and an input device adapted to receive a pulse does setting. A controller coupled to the pressure sensor and monitors the reservoir pressure and the pressure drop across the delivery valve. The controller is also coupled to the delivery valve to selectively open the delivery valve for pulse durations based on the pulse dose setting to deliver pulses of gas from the reservoir to a user. The controller further adjusts the pulse durations based at least partially upon the reservoir pressure and the pressure drop across the delivery valve.

A portable oxygen concentrator includes a pair of sieve beds, a compressor for delivering air to the sieve beds, a reservoir receiving oxygen-enriched gas from the sieve beds, and an air manifold attached to the first ends of the sieve beds. A set of valves operate under the control of a controller for selectively opening and closing the valves to alternately charge and purge the sieve beds to deliver oxygen-enriched gas into the reservoir. In addition, an exhaust passage communicates with the plurality of sieve beds to deliver a flow of nitrogen evacuated from the sieve beds such that the flow of the nitrogen is directed at or across the controller to cool the controller.

A compressor suitable for use in a portable oxygen concentrator. In one exemplary embodiment, the compressor includes a crankshaft rotatable about a central axis and a plurality of diaphragm assemblies spaced apart around the central axis generally within a plane. The diaphragm assemblies include diaphragms movably mounted to respective housings to at least partially define chambers. A plurality of rods extend between respective diaphragms and the crankshaft. The rods are coupled to the crankshaft such that the rods are offset axially from one another along the central axis and are coupled to the diaphragms for cyclically increasing and decreasing pressure within the chambers as the crankshaft rotates about the central axis.

Compressors and methods for use

A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the first ends of the sieve beds. The air manifold includes passages therein communicating with the compressor and the first ends of the sieve beds. A set of valves is coupled to the air manifold, and a controller is coupled to the valves for selectively opening and closing the valves to alternately charge and purge the sieve beds to deliver concentrated oxygen into the reservoir. An oxygen delivery manifold communicates with the second ends of the sieve beds for delivering oxygen from the reservoir to a user. Pressure sensors may be provided in the reservoir and/or delivery line for controlling operation of the controller.

Growing community of inventors

Prior Lake, MN, United States of America

Peter L Bliss