US20200316415A1 - Portable System for the Production of Oxygen - Google Patents

Portable System for the Production of Oxygen Download PDF

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Publication number
US20200316415A1
US20200316415A1 US16/387,797 US201916387797A US2020316415A1 US 20200316415 A1 US20200316415 A1 US 20200316415A1 US 201916387797 A US201916387797 A US 201916387797A US 2020316415 A1 US2020316415 A1 US 2020316415A1
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Prior art keywords
oxygen
flow
reactor
present
hydrogen peroxide
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US16/387,797
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Inventor
Ben Alkahe
Ran Miron
Oded Weiss
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Oxygenium Ltd
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Oxygenium Ltd
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Priority to US16/387,797 priority Critical patent/US20200316415A1/en
Assigned to Oxygenium Ltd. reassignment Oxygenium Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MIRON, Ran, WEISS, Oded, ALKAHE, BEN
Publication of US20200316415A1 publication Critical patent/US20200316415A1/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0203—Preparation of oxygen from inorganic compounds
    • C01B13/0211—Peroxy compounds
    • C01B13/0214—Hydrogen peroxide
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    • A62B9/003—Means for influencing the temperature or humidity of the breathing gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D9/00—Composition of chemical substances for use in breathing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/268—Drying gases or vapours by diffusion
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
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    • C01B13/0229—Purification or separation processes
    • C01B13/0288—Combined chemical and physical processing
    • A—HUMAN NECESSITIES
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
    • A—HUMAN NECESSITIES
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    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1025—Measuring a parameter of the content of the delivered gas the O2 concentration
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    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen
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Definitions

  • Oxygen is a critical component of medical treatment. This treatment can be chronic or acute. Supplemental oxygen can be lifesaving in emergency situations, although the burden of providing oxygen during transport and in remote areas is substantial in cost, transport, and materials. Oxygen cylinders are heavy and present a number of potential hazards including combustion, detonation and projectile risks. Liquid oxygen systems provide a large amount of gas with a smaller foot print but are heavy, exhaust gas over time, and present a burn risk if handled improperly. In addition, the output of both of these oxygen systems is finite and requires refilling, which presents logistical issues in far forward military operations.
  • Portable oxygen concentrators (POCs) and chemical oxygen generators (COGs) have been proposed as a solution.
  • It is the object of the present invention to present a portable device for oxygen generation comprising:
  • the feeding system is a pump, the pump selected from a group consisting of displacement pump, peristaltic pump, syringe pump, piston pump, plunger pump, screw pump and reciprocating pump.
  • the catalytic filter comprises at least one catalyst
  • the catalyst comprises an active compound selected from a group consisting of a metal, a metalloid, an alloy of a metal, an alloy of a metalloid, a compound of a metal and a compound of a metalloid.
  • cooling unit additionally comprises at least one fan.
  • hydrophobic membrane is constructed from a material selected from a group consisting of Polytetrafluoroethylene, Polysulfones and polycarbonate.
  • the oxygen flow regulator is a heat/mass oxygen (O 2 ) flow meter configured for real-time flow measurement.
  • control unit is based on a designated Printed Circuit Board.
  • control unit comprises feedback circuits for at least one of the parameters as disclosed in any of the above.
  • control unit is configured to emit an alert in the case of:
  • control unit additionally comprises a data logger, the data logger configured to record the status of the device.
  • control unit configured to communicate with an external system, the communication selected characterized as:
  • It is another object of the present invention to present the device is powered by a battery unit, the battery is a 12-18V/4-5 Ah Rechargeable.
  • biofeedback sensor is configured to detect the peripheral blood O 2 saturation level in the patient.
  • control unit is configured emit an alert in the case of low or high O 2 patient saturation levels.
  • FIG. 1 is a schematic representation of one embodiment of the present invention
  • FIG. 2 depicts an embodiment of the present invention
  • FIG. 3 depicts an embodiment of the cooling system of the present invention
  • FIG. 4 depicts an embodiment of the heat sink system of the present invention
  • FIG. 5 depicts an embodiment of the cooling system of the present invention
  • FIG. 1 schematically shows the basic unit 10 , comprising 9 main units:
  • the reservoir 11 holds the Hydrogen peroxide solution.
  • the holder can be single use or refillable.
  • the reservoir is a cartridge that holds the solution and is feed into the system.
  • the reservoir is part of the system and is refiled from another container.
  • the reservoir can be hard or soft-sided.
  • the reservoir must be constructed from inert, non-reactive, medicinal grade materials such as stainless steel or polymers.
  • the reservoir is constricted like a ‘syringe’ i.e. is constructed from a barrel and a plunger (or piston).
  • the reservoir is a canister capable of holding a solution of hydrogen peroxide (H 2 O 2 ) in water.
  • the percentage of H 2 O 2 is at least 20% and in some embodiments is 30-60%.
  • the feeding unit 12 controls the flow of the solution into the reactor.
  • the feeding unit is a pump.
  • the pump could be a displacement pump, peristaltic pump, syringe pump, piston pump, plunger pump, screw pump or reciprocating pump.
  • the reservoir 12 is collapsible and the feeding unit is configured to put pressure on the reservoir, pushing the hydrogen peroxide solution into the reactor.
  • the feeding unit acts as a reciprocating pump with the reservoir forming part of the pump.
  • the feeding unit can be set to control the flow rate according to various parameters: Hydrogen peroxide solution flow rate, Oxygen flow rate (at the exit of the device), and reaction chamber pressure.
  • the feeding unit additionally comprises a pressure sensor.
  • the reactor 13 is constructed from an inert, non-reactive material that can withstand temperatures of at least 100° C.
  • the reactor contains a catalyst that catalyzes the decomposition of hydrogen peroxide to water and oxygen.
  • the catalyst comprises a metal, a metalloid, an alloy of a metal, an alloy of a metalloid, a compound of a metal and a compound of a metalloid.
  • the catalyst is heterogeneous catalyst comprising a metal, a hydrogen molecule and an electronegative element.
  • the solution mixes with the solid Catalyst particles, instantly breaking (decomposing) the H 2 O 2 to H 2 O and O 2 .
  • the reaction is thermogenic, reaching temperatures to 90° C.
  • the gas produced by the decomposition of hydrogen peroxide flows out of the reactor and through the catalytic filter 14 .
  • the reaction chamber can additionally comprise a pressure valve.
  • the pressure valve is configured to regulate the pressure in the reaction chamber by releasing excess gas or by regulating the solution flow rate. Regulation of the flow rate by the pressure valve can be conducted directly or by the control unit.
  • the catalytic filter 14 is constructed to decompose any hydrogen peroxide that has been vaporized or distilled by the decomposition reaction.
  • the filter can be constructed of the same catalyst as the reactor or of another catalyst.
  • the cooling unit is configured to cool the gas, condensing the water vapor into liquid water.
  • the cooling unit enables the liquid to be drained into a tank. In some embodiments, the cooling unit enables draining throughout the length of the cooling unit. In some embodiments the liquid is drained instantly and continuously.
  • the water tank holds the water and can be drained.
  • Gas that passes through the cooling unit 15 passes through a hydrophobic membrane (or filter) to remove any water vapor that was not condensed throughout the cooling unit.
  • the filter can be a membrane.
  • An oxygen flow regulator comprises a flow meter that measures the amount of Oxygen that passes the filter 16 .
  • the flow meter can regulate the feeding unit to ensure that the flow of oxygen is continuous and at the required level.
  • the flow regulator can also measure the temperature of the gas to make sure that the oxygen is not too hot for the patient.
  • the flow regulator additionally comprises a valve for regulating the oxygen flow.
  • the valve can be manual, mechanical or electro-mechanical. In some embodiments the valve is controlled by the user, the control unit or directly by the flow meter.
  • a display unit can display all of the critical device parameters: oxygen flow, oxygen temperature, water tank content level, reservoir level, system pressure, battery power level etc.
  • the system additionally comprises a biosensor.
  • the biosensor is an O 2 blood saturation sensor that is connected to a patient.
  • the sensor can be connected to the control unit to track the saturation level of the patient.
  • the control unit is configured to control the Oxygen flow rate according to the O 2 saturation level of the patient.
  • the control unit can control the oxygen rate by regulating the exit valve or the feeding unit.
  • the control and display unit can also track the overall status of the system, such as usage status, catalyst status, maintenance etc.
  • the final oxygen produced exits the device and can then be delivered to a patient or stored for later use.
  • FIG. 2 It is within the scope of this patent to disclose a specific embodiment of the invention, an example of a device 20 , comprising:
  • a hydrogen peroxide (H 2 O 2 ) Cartridge 21 H 2 O 2 [50%-60%] is the substrate of the chemical reaction, producing H 2 O and O 2 .
  • the cartridge volume is 750-1000 ml, sufficient to produce a flow of 10 l/min O 2 for 30-45 min.
  • the cartridge designed to be instantly replaceable once it gets empty, enabling continues flow of O 2 .
  • the peristaltic pump drives the H 2 O 2 from the cartridge to the Reaction Chamber, where the chemical reaction takes place.
  • the pump speed (RPM) is controlled by the Control unit ( 5 )
  • Reaction Chamber 23 H 2 O 2 flow into the RC, mixing with the solid Catalyst particles, instantly breaking (decomposing) the H 2 O 2 to H 2 O and O 2 .
  • the reaction is thermogenic, reaching to 90° C. and creating a constant Power up to 1,500 W.
  • Exiting the RC are O 2 , H 2 O as steam, and some liquid and gaseous H 2 O 2 .
  • the flow of the reaction products (O 2 , H 2 O) is directly proportional to the pump RPM (the reaction is saturated with Catalyst).
  • a pressure gauge 24 a tracks the pressure in the RC. In cases of excess pressure a pressure valve 24 b can release excess gas.
  • Catalyst Filter 25 The mixed steam exiting the RC is directed into a filter, packed with catalytic particles. Traces of H 2 O 2 (liquid or gaseous) are chemically decomposed to O 2 and H 2 O, preventing any corrosive H 2 O 2 reaching the patient.
  • Heat Sink Air Cooling System 26 a The mixed steam exiting the Catalyst Filter flows straight into an active air cooling system. While going through the system condensation takes place, water is pouring down through holes at the bottom of each curve within the HS. This arrangement directs efficiently the HS cooling capacity towards low mass steam condensation, rather than cooling high mass water.
  • An Electric Fan 26 b 60 W is used as the active component of the cooling system.
  • Water is collected into a water tank 27 of 1000 cc, and drained out timely through a solenoid controlled tap.
  • Hydrophobic membrane 28 Humid O 2 exiting the cooling system flows through a hydrophobic membrane, filtering traces of water. Liquid within the O 2 pipe can interfere with accurately measuring the O 2 flow.
  • a Heat 29 a and Mass O 2 flow 29 b meter is used for real-time flow measurement of the gas exiting the device 29 c.
  • the cooling air is generated by a fan 31 and funneled 32 to an area 33 surrounding the pipe containing the oxygen and water vapor generated by the reactor 34 .
  • the gas stream is then de-humidified by a hydrophobic membrane 35 before exiting the system 36 , to be provided to a patient.
  • FIG. 4 describing a heat sink system 40 .
  • the steam 41 enters the sink at one end of the heat sink.
  • the gas is cooled, and the water vapor is converted to liquid, it is drained 42 to that the amount of water that exits the system 43 is limited.
  • FIG. 4 presents the cooling unit of FIG. 3 at a 90° rotation on the Y axis.
  • FIG. 5 presents the cooling unit of FIG. 4 at a 90° rotation on the Z axis.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Organic Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Drying Of Gases (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US16/387,797 2019-04-03 2019-04-18 Portable System for the Production of Oxygen Abandoned US20200316415A1 (en)

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US16/387,797 US20200316415A1 (en) 2019-04-03 2019-04-18 Portable System for the Production of Oxygen

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US17/379,711 Active US11383109B2 (en) 2019-04-03 2021-07-19 Portable system for the production of oxygen
US17/861,420 Active 2041-01-30 US12138494B2 (en) 2019-04-03 2022-07-11 Portable system for the production of oxygen
US18/910,971 Pending US20250032826A1 (en) 2019-04-03 2024-10-09 Portable system for the production of oxygen

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US18/910,971 Pending US20250032826A1 (en) 2019-04-03 2024-10-09 Portable system for the production of oxygen

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EP (1) EP3958942A4 (https=)
JP (2) JP2022528198A (https=)
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US12138494B2 (en) 2019-04-03 2024-11-12 Oxygenium Ltd. Portable system for the production of oxygen

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US20250032826A1 (en) 2025-01-30
IL286892A (en) 2021-10-31
WO2020202110A1 (en) 2020-10-08
GB201907885D0 (en) 2019-07-17
US20210379422A1 (en) 2021-12-09
US11383109B2 (en) 2022-07-12
AU2020251514B2 (en) 2025-05-22
JP2025179071A (ja) 2025-12-09
AU2025220822A1 (en) 2025-09-11
KR20220011623A (ko) 2022-01-28
EP3958942A4 (en) 2023-08-02
JP2022528198A (ja) 2022-06-08
US12138494B2 (en) 2024-11-12
EP3958942A1 (en) 2022-03-02
CA3135692A1 (en) 2021-09-30
IL286892B1 (en) 2026-03-01
IL326172A (en) 2026-03-01
CN114007677A (zh) 2022-02-01
MX2021012097A (es) 2022-01-18
GB2582836A (en) 2020-10-07
AU2020251514A1 (en) 2021-11-25
US20220347499A1 (en) 2022-11-03

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