Vbox, Incorporated

Hill-rom Services, Inc.

American Biosystems, Inc.

Advanced Respiratory, Inc.

Control Data Corporation

Other

3b Medical, Inc.

Zycad Corporation

3b Medical Manufacturing LLC

Van Brunt, Nicholas P.

Nicholas P Van Brunt

John A Kivisto

Theodore W Jagger

Perry B Lonnes

Donald J Gagne

Eric L Stechmann

Alexander E Van Brunt

Logan W Johnson

John H Ketzler

Richard E Carlson

Michael E McCadden

James C Rathmanner

Stephen A Moriarty

Mark A Weber

Richard E Offerdahl

A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Removable cartridge for oxygen concentrator

Disclosed is a method of providing oxygen rich gas. Oxygen is separated from ambient air with an oxygen separator in discrete pulses, one pulse at a time. The start of the pulse is synchronized with the beginning of an inhalation of a person. The oxygen rich gas in each pulse is separated from the ambient air in real time during a nitrogen adsorption step concurrent with each inhalation.

Method of separating and distributing oxygen

A method of controlling a fluid pump. The pump has a plurality of oscillating pistons that travel along a central axis of a piston sleeve. A plurality of pistons is of similar mass within a piston sleeve are provided, and adjacent pistons are positioned to be 180 degrees apart in phase oscillations. An electric coil is provided for each piston, and the position of adjacent pistons is determined. The current to one of the electric coils for a piston is adjusted to maintain the 180 degree difference in phase between oscillations of adjacent pistons.

Method of controlling gaseous fluid pump

A high frequency chest wall oscillation (HFCWO) apparatus for the purpose of lung airway clearance of people includes an inflated vest type garment worn around the chest of a person. An oscillating pressure generator with reduced power requirements and a power source is integrated with the garment so that the complete apparatus is wearable by the person. Improvements in pressure waveforms, safety and compliance to prescribed use are disclosed.

High frequency chest wall oscillation apparatus

A high frequency chest wall oscillation (HFCWO) therapy system includes an inflatable garment, an air pulse generator operable to produce oscillating pressure pulses that are communicated to the inflatable garment, at least one hose to interconnect the air pulse generator with the inflatable garment and to communicate the oscillatory pressure pulses from the air pulse generator to the inflatable garment. The air pulse generator is sized, shaped, and configured so as to occupy a volume no greater than about 1,200 in.and to weigh no more than about 17 lbs.

High frequency chest wall oscillation system

An apparatus for separation of gases from ambient air that has at least one separation column with an inlet at a first end and an outlet at a second end, a buffer column having a single inlet at a first end, a vacuum pump, and a valve system that connects the vacuum pump to the outlet at the first end of the separation column, and that connects the outlet at the second end of separation column to the single inlet at the first end of the buffer column.

Apparatus for separating oxygen from ambient air

An air pulse generator for providing high frequency chest wall oscillation therapy to a patient is provided. The air pulse generator has a housing and first and second diaphragms supported in the housing. The air pulse generator further has a crankshaft assembly coupled to the first and second diaphragms to reciprocally move the diaphragms back and forth to produce oscillating pressure pulses. The crank shaft assembly includes a motor with an output shaft that rotates about a first axis, a flywheel mounted on the shaft to rotate therewith, a first member coupled to the first diaphragm and pinned to the flywheel by a first stub shaft that is offset from the first axis, a second member coupled to the second diaphragm, and a cam interposed between the first member and the second member. The first member is pinned to the cam by the first stub shaft and the second member is pinned to the cam by a second stub shaft.

High frequency chest wall oscillation system with crankshaft assembly

An oxygen concentrator comprises an oxygen reservoir and adsorbent columns that each have an inlet, an outlet, and a bed of adsorbent material. The concentrator also comprises an air inlet, an exhaust outlet, and a vacuum pump for pumping nitrogen rich gas from one of the column inlets to the exhaust outlet. A product control pump pumps oxygen rich gas from one of the column outlets to the oxygen reservoir. A control valve controls flow in and out of the columns by selectively connecting the air inlet to one column inlet, connecting the vacuum pump to another column inlet, and connecting the product control pump to a column outlet. A motor drives the vacuum pump and control valve to produce vacuum swing adsorption (VSA) cycles in which oxygen-rich product gas is separated and accumulated in the reservoir.

Ambulatory oxygen concentrator containing a three phase vacuum separation system

Concentrated oxygen product gas is produced and delivered to a patient. Product gas is produced by (a) introducing ambient air into a first end of a column containing an adsorbent material that preferentially adsorbs nitrogen and removes oxygen-rich product gas out a second end of the column; (b) evacuating the column through the first end to remove adsorbed gas from the column; (c) repressurizing the column by introducing ambient air into the first end of the column until the column is near 1.0 atmosphere; and (d) repeating steps (a)-(c). Product gas is delivered as needed to the patient.

Method of providing ambulatory oxygen

An oxygen concentrator comprises a plurality of adsorbent columns, each having an inlet, an outlet and abed of adsorbent material. The oxygen concentrator also includes a vacuum pump for removing separated nitrogen rich gas from the column inlets, a control valve for controlling flow of fluids in and out of the columns, and a breakthrough sensor for signaling the position of a mass transfer zone (MTZ), the breakthrough sensor controlling operation of the control valve as a function of the breakthrough sensor signal. An electric control module (ECM) receives the signal from the breakthrough sensor, and adjusts the control valve based on the signal.

Method and apparatus for controlling the purity of oxygen produced by an oxygen concentrator

A method of providing concentrated oxygen product gas to a patient. The method comprises producing product gas by a vacuum swing adsorption (VSA) process with an oxygen concentrator comprising a plurality of separation columns connected to a vacuum source driven by a motor. Separated product gas is then pumped to a product reservoir. The pressure of the reservoir is monitored and used to adjust the speed of the motor based on the reservoir pressure. The separated gas is then delivered to the patient.

Growing community of inventors

White Bear Lake, MN, United States of America

Nicholas P Van Brunt