WO2011087110A1 - Humidificateur et dispositif d'enrichissement en oxygène l'utilisant - Google Patents

Humidificateur et dispositif d'enrichissement en oxygène l'utilisant Download PDF

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Publication number
WO2011087110A1
WO2011087110A1 PCT/JP2011/050592 JP2011050592W WO2011087110A1 WO 2011087110 A1 WO2011087110 A1 WO 2011087110A1 JP 2011050592 W JP2011050592 W JP 2011050592W WO 2011087110 A1 WO2011087110 A1 WO 2011087110A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
humidifier
introduction
lid
oxygen
Prior art date
Application number
PCT/JP2011/050592
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English (en)
Japanese (ja)
Inventor
直之 飯田
小西　善之
Original Assignee
帝人ファーマ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 帝人ファーマ株式会社 filed Critical 帝人ファーマ株式会社
Priority to JP2011550027A priority Critical patent/JP5390641B2/ja
Publication of WO2011087110A1 publication Critical patent/WO2011087110A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M16/101—Preparation of respiratory gases or vapours with O2 features or with parameter measurement using an oxygen concentrator
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; 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
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4533—Gas separation or purification devices adapted for specific applications for medical purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/455—Gas separation or purification devices adapted for specific applications for transportable use
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption

Definitions

  • the present invention relates to an oxygen concentrator that separates oxygen from the air, and relates to an oxygen concentrator equipped with a water humidifier for appropriately humidifying a generated dry oxygen concentrated gas.
  • oxygen inhalation therapy is a method in which a patient with respiratory disease inhales oxygen gas or oxygen-enriched gas.
  • Oxygen concentrators, liquid oxygen, oxygen gas cylinders, and the like are known as oxygen sources used for this purpose.
  • oxygen concentrators are used for home oxygen therapy. Is used in the mainstream.
  • the oxygen concentrator is a device that supplies approximately 21% oxygen existing in the air after being separated and concentrated.
  • a membrane type oxygen concentrator using a membrane that selectively permeates oxygen and a pressure fluctuation adsorption type oxygen concentrator using an adsorbent capable of preferentially adsorbing nitrogen or oxygen are known.
  • a pressure fluctuation adsorption type oxygen concentrator is mainly used as a home oxygen therapy device.
  • the pressure fluctuation adsorption type oxygen concentrator was compressed by a compressor in an adsorption cylinder filled with molecular sieve zeolite such as 5A type, 13X type, Li-X type, etc., which is an adsorbent that selectively adsorbs nitrogen over oxygen.
  • the adsorbent is made by adsorbing nitrogen to the adsorbent under pressurized conditions by supplying air to obtain unadsorbed oxygen, and reducing the pressure in the adsorption cylinder to atmospheric pressure or lower.
  • a high concentration oxygen-enriched gas can be continuously generated. Since zeolite used as a nitrogen adsorbent has the property of adsorbing moisture in the air, the oxygen-enriched gas produced is discharged in a dry state containing almost no humidity.
  • a humidifier for supplying oxygen-enriched gas in a humidified state to many oxygen concentrators Is installed.
  • Such a humidifier is provided with moisture through a bubble generator that introduces oxygen-enriched gas into water and bubbles it as disclosed in JP-A-7-165402 due to its high humidification performance. Therefore, a bubble humidifier that humidifies the oxygen-enriched gas in a dry state is generally used (Patent Document 1).
  • the tube that supplies the oxygen-enriched gas to the patient is closed by crushing or bending the cannula according to the patient's own weight, especially when turning over while sleeping.
  • a pressure sensor is generally installed in the oxygen-enriched gas pipe in the apparatus, and it is generally provided with a function of issuing an alarm when the use is continued in a state where a certain pressure threshold is exceeded.
  • the pressure threshold value for supplying the oxygen-enriched gas is set higher, and the pressure is controlled so that the flow rate of the oxygen-enriched gas does not decrease when the oxygen-enriched gas supply tube is slightly bent to prevent the therapeutic effect from being lowered.
  • An oxygen concentrator having a function has been proposed (Patent Document 2). Such an apparatus has a function of maintaining the oxygen supply amount to the patient constant by controlling the supply pressure.
  • the pressure in the oxygen concentrating gas pipe including the humidifier is always set to be equal to or higher than the atmospheric pressure. Therefore, even after the oxygen concentrator is stopped, the pressure in the humidifier is maintained under pressure when the tube that supplies the oxygen-enriched gas is bent and closed. If the humidifier is removed from the oxygen concentrator to replenish the humidified water in this state, the water remaining in the humidifier is caused by the pressure difference between the residual pressure inside the humidifier and atmospheric pressure. There is a possibility of ejection from the introduction port. In the present invention, even when the pressure inside the humidifier of the oxygen concentrator is increased due to the blockage of the oxygen concentrated gas supply tube, the humidifier is removed for the purpose of replenishing the humidified water. It aims at solving the problem of the ejection of humidified water to the outside through the bubble generator.
  • the present invention is a humidifier for appropriately humidifying a dry gas
  • the humidifier includes an introduction nozzle for introducing gas into the humidification container and a discharge nozzle for discharging the humidified gas.
  • the airtightness of the discharge nozzle and the lid outlet port of the humidifier is determined by the introduction nozzle and the cover. It is intended to provide a humidifier comprising a sealing means that is lost before the airtightness of the part introduction port.
  • the sealing means is attached to the outer surfaces of the introduction nozzle and the outlet nozzle, and when the lid of the humidifier is removed from each nozzle, the sealing means attached to the outlet nozzle is attached to the inlet nozzle.
  • the introduction nozzle and the discharge nozzle are tubular members, and the introduction port and the discharge port provided in the lid are cylindrical openings fitted to the introduction nozzle and the introduction nozzle, and are attached to the discharge nozzle.
  • the sealing means is provided on the inlet side of the cylindrical opening with respect to the sealing means attached to the introduction nozzle, and the length of the outlet nozzle is a member shorter than the introduction nozzle.
  • the outlet nozzle is a multi-stage annular member having a small outer diameter on the tip side, and the sealing means of the outlet nozzle is installed on the small-diameter side of the multi-stage nozzle, or the introduction nozzle and
  • the outlet nozzle is an annular member, the inlet and outlet provided in the lid are the inlet nozzle and a cylindrical opening fitted to the inlet nozzle, and the sealing means attached to the outlet nozzle
  • a humidifier is provided in which sealing means attached to the introduction nozzle is provided on the side surface of the annular member at the leading end of the lead-out nozzle.
  • the sealing means is attached to the inner surfaces of the inlet and outlet, and when the lid of the humidifier is removed from the inlet nozzle and outlet nozzle, the sealing means on the outlet side is attached to the inlet nozzle.
  • a humidifier characterized in that it is installed at a position where airtightness is lost first with respect to the attached sealing means in relation to the outlet and inlet of the lid to be fitted.
  • the introduction nozzle and the discharge nozzle are tubular members, and the introduction port and the discharge port provided in the lid are cylindrical openings that fit into the introduction nozzle and the introduction nozzle.
  • the humidifier, the introduction nozzle, and the lead-out device wherein the sealing means attached to the outlet port is provided on the back side of the cylindrical opening with respect to the sealing means attached to the inlet port.
  • the nozzle is a tubular member having a sealing means on the side surface, and the introduction port and the discharge port provided in the lid are a cylindrical opening that fits the introduction nozzle and the introduction nozzle.
  • the tip is tapered, or the humidifier is provided with a groove on the outer surface of the tip, or the introduction nozzle and the discharge nozzle are tubular members each having a sealing means on a side surface, and are provided on the lid Guidance A humidifier, wherein the inlet and the outlet are openings that fit into the inlet nozzle and the inlet nozzle, the inlet has a cylindrical shape, and the outlet has a tapered opening. I will provide a.
  • the present invention is an adsorption-type oxygen concentrating device that includes an adsorbent that selectively adsorbs nitrogen over oxygen and separates unadsorbed oxygen-enriched gas from the air, and humidifies the generated oxygen-enriched gas
  • a humidifying container for containing humidifying water a bubble generator for a porous material that introduces a dry gas into the water contained in the humidifying container, and a humidifying container.
  • the lid is fitted with each of an introduction nozzle for introducing a dry gas into the humidification container and a discharge nozzle for discharging the humidified gas from the humidification container,
  • an introduction nozzle for introducing a dry gas into the humidification container
  • a discharge nozzle for discharging the humidified gas from the humidification container
  • the airtightness of the outlet nozzle and the lid outlet of the humidifier is: Airtightness of the inlet nozzle and lid inlet Characterized in that it is a humidifier comprising a sealing means that is lost remote destination, provides an oxygen concentrator.
  • an oxygen supply means such as a cannula or tube provided downstream of the humidifier is crushed or bent, and the humidifier is removed while the pressure in the humidifier is increased. It is possible to provide a humidifier in which humidified water remaining in the humidification container does not flow out to the introduction nozzle side through the bubble generator, and an oxygen concentrator equipped with the humidifier.
  • FIG. 1 shows a schematic configuration diagram of an oxygen concentrator which is an embodiment of the present invention.
  • FIG. 2 is an external view of the oxygen concentrator
  • FIG. 3 is a schematic external view showing a connecting portion of a humidifying container mounted on the oxygen concentrator as an embodiment of the present invention.
  • FIG. 4 is a schematic front view showing the inside of a humidifier according to an embodiment of the present invention
  • FIG. 5 is a schematic external view showing a humidifier mounting portion of the oxygen concentrator.
  • 6 and 7 schematically show the connection state of the outlet nozzle and the inlet nozzle of the humidifier attachment portion of the oxygen concentrator, and the outlet port and inlet portion of the humidifier lid portion fitted therein. .
  • FIG. 1 is a schematic apparatus configuration diagram illustrating a pressure fluctuation adsorption type oxygen concentrator as an embodiment of the present invention
  • FIG. 2 is an external view thereof.
  • the pressure fluctuation adsorption type oxygen concentrator 1 of the present invention includes a compressor 112 for supplying raw air, adsorption cylinders 131 and 132 filled with an adsorbent that selectively adsorbs nitrogen rather than oxygen, and a flow path for switching adsorption / desorption processes.
  • Supply valves 121 and 122 as switching means, exhaust valves 123 and 124, and pressure equalizing valve 125 are provided, and after oxygen-concentrated gas separated and generated from the raw air is adjusted to a predetermined flow rate by control valve 142 as a flow rate setting device, cannula 148 Supplied to the user using
  • the raw material air taken in from the outside is taken in from an air intake port provided with an external air intake filter 111 for removing foreign matters such as dust.
  • the normal air contains 1.2% of about 21% oxygen gas, about 77% nitrogen gas, 0.8% argon gas, carbon dioxide and other gases. In such an apparatus, oxygen necessary as a breathing gas is separated and extracted.
  • the oxygen-enriched gas is separated from the adsorbing cylinders 131 and 132 filled with an adsorbent made of zeolite or the like that selectively adsorbs nitrogen molecules rather than oxygen molecules.
  • an adsorbent made of zeolite or the like that selectively adsorbs nitrogen molecules rather than oxygen molecules.
  • the number of adsorption cylinders is determined by the relationship with the amount of oxygen produced, and there are oxygen concentrators using multiple cylinders of 3 or more in addition to 1 cylinder and 2 cylinders.
  • a two-head type oscillating air compressor is used as a compressor having only a compression function or a compression and vacuum function, and a rotary type such as a screw type, a rotary type, a scroll type and the like.
  • An air compressor may be used.
  • the power source of the electric motor that drives the compressor may be alternating current or direct current.
  • the apparatus can be quieted and cooled by being housed in a compressor box provided with a cooling fan 113.
  • the oxygen-enriched gas mainly composed of oxygen that has not been adsorbed by the adsorption cylinders 131 and 132 flows into the product tank 140 via check valves 128 and 129 provided so as not to flow back to the adsorption cylinders. Stored. In order to continuously generate the oxygen-enriched gas, it is necessary to desorb and remove nitrogen adsorbed on the adsorbent filled in the adsorption cylinder.
  • the adsorption cylinder is connected to the exhaust line, the pressurized adsorption cylinder is switched to the open atmosphere, and the nitrogen adsorbed in the pressurized condition is desorbed. Regenerate the adsorbent.
  • the exhaust silencer 150 is provided at the end of the exhaust line, noise associated with nitrogen exhaust can be reduced.
  • the other desorption process is performed from the product end side of the adsorption cylinder in the adsorption process of the two adsorption cylinders 131 and 132 via the pressure equalizing valve 125.
  • a purge step is performed in which the oxygen-enriched gas is caused to flow backward as a purge gas with respect to the adsorption cylinder.
  • the pressure equalizing valve 125 is provided with orifices 126 and 127.
  • operation control is performed by shifting each process, and when one adsorption cylinder 131 performs the adsorption process and generates oxygen, the other adsorption cylinder 132 performs the desorption process and performs the adsorption process.
  • Regeneration is performed, and oxygen is continuously generated by switching each process. Oxygen-enriched gas is produced from the raw air and is temporarily stored in the product tank 140.
  • the oxygen-enriched gas stored in the product tank 140 contains a high-concentration oxygen-enriched gas such as 95%, for example, and its supply flow rate and pressure are controlled by the flow rate setting means 142 such as the pressure regulating valve 141 and the control valve.
  • the humidified oxygen-concentrated gas supplied to the humidifier 145 is supplied to the patient.
  • a bubbling humidifier or a surface evaporation humidifier using water as a humidification source can be used.
  • the flow rate and oxygen concentration of the oxygen-enriched gas supplied to the user are detected by an ultrasonic oxygen concentration / flow rate sensor 144. Based on the oxygen concentration detection value and the oxygen supply flow rate value, the rotation speed of the compressor 112 and the flow path switching are performed.
  • the oxygen concentrator includes a pressure sensor 115 and a relief valve 114 to detect abnormal compressor operation and adsorption cylinder pressurization, and a temperature sensor 151 detects the adsorption temperature of the oxygen concentrator.
  • device abnormality detection and optimization control of the adsorption / desorption process are performed.
  • Molecular adsorbents such as Na-X, Li-X, and MD-X are adsorbed in the air at the same time as adsorbents that selectively adsorb nitrogen over oxygen. Therefore, the produced oxygen-enriched gas is separated as an almost completely dry gas.
  • humidification is provided in the middle of the pipe connecting the product tank 140 that primarily stores the generated oxygen-enriched gas and the cannula 148 that supplies oxygen to the patient.
  • a water humidifier 145 is installed to humidify the oxygen-enriched gas by bubbling underwater.
  • the water humidifier for humidifying the oxygen-enriched gas after opening the cover with respect to the humidifier housing portion 202 provided with the opening and closing cover 201 provided in the front center portion of the housing as shown in FIG.
  • a humidifier 203 is connected in the vertical direction. As shown in the schematic external view of FIG.
  • the humidifier is composed of a humidifying container 301 for containing humidified water and a humidifier lid 302 for sealing the humidified water, and the lid portion is dried from the oxygen concentrator.
  • the inlet nozzle which is fitted with each of the introduction nozzle 303 for supplying the oxygen enriched gas in the state and the outlet nozzle 304 for delivering the humidified oxygen enriched gas to the oxygen concentrator side and constitutes a receiving side for connection in an airtight state 305 and an outlet 306 are provided.
  • the humidifier is attached to the oxygen concentrator via an attachment base 307 in the humidifier housing.
  • An introduction nozzle 303 and a discharge nozzle 304 are vertically attached to the humidifier attachment base.
  • the dried oxygen-enriched gas produced by the oxygen concentrator is introduced into the humidification container 301 from the introduction nozzle 303 through the introduction port 305 of the lid.
  • the oxygen-enriched gas humidified in the humidification container is returned to the oxygen concentrator again from the lid outlet 306 via the outlet nozzle 304.
  • the introduction nozzle 303 and the discharge nozzle 304 and the introduction port 305 and the discharge port 306 provided in the lid 302 are detachable, and can be easily removed by pulling the handle 308 upward. Further, the lid 302 and the humidifying container 301 are also detachable, and the humidifying water can be supplied to the humidifying container 301 by rotating and removing the lid 302.
  • FIG. 4 shows the humidification container 401 and lid 402 of the present invention in detail.
  • the introduction nozzle 403 is fitted into the introduction port 405 on the introduction nozzle receiving side, and the dried oxygen-enriched gas passes through the introduction pipe 407 and is bubbled by the bubble generator 408 having a porous tip, and is supplied with humidified water 409. It is moderately humidified by passing inside.
  • the humidified oxygen-enriched gas is returned to the oxygen concentrator from the outlet port 406 installed in the humidifier lid 402 through the outlet nozzle 404.
  • FIG. 5 schematically shows the external configuration of the humidifier housing portion 500 for showing in detail the introduction nozzle 503 and the discharge nozzle 504 constituting the connection portion with the humidifier of the oxygen concentrator of the present invention. is there.
  • the introduction nozzle 504 and the discharge nozzle 505 provided on the mounting base 507 are respectively provided with an introduction nozzle Y ring 513 and a discharge nozzle in order to maintain a sealed structure between the introduction nozzle reception side and the discharge nozzle reception side on the lid side.
  • a sealing material for the nozzle Y ring 514 is attached. This is not necessarily a Y-ring as long as the sealing function can be secured, and may be an O-ring or other shapes.
  • a tube for supplying an oxygen-enriched gas or a supply tube called a cannula may be bent during use.
  • Factors such as tube connection failure when connecting multiple extension tubes and inhaling oxygen away from the oxygen concentrator, or crushing the tube under the patient's body at bedtime Many are based on In such a state, the oxygen-enriched gas does not flow through the tube, and as a result, the pressure in the humidifying container also increases.
  • a flow rate sensor and a pressure sensor are attached to the oxygen concentrator side. When a flow rate drop or a pressure rise is detected, a warning that the supply tube is bent is issued. In recent oxygen concentrators, in consideration of patient convenience, a warning is not issued for a slight decrease in flow rate or pressure increase, and a device for maintaining an appropriate flow rate by a flow rate control function has been devised.
  • control is performed to compensate for the decrease in the oxygen supply amount due to bending of the supply tube or the like by performing control such as increasing the product tank pressure by increasing the oxygen generation amount or increasing the oxygen supply flow rate.
  • the supply piping side including the inside of the humidification container is kept in a positive pressure state. If the humidifier is removed from the oxygen concentrator to replenish the humidified water in this state, the air suddenly flows from the inlet or outlet of the humidifier lid due to the pressure difference between the pressure in the humidification container and atmospheric pressure. There are situations where water enters the inside or the water remaining from the inside of the humidifier blows out.
  • the pressurized oxygen-enriched gas generated by the cannula breaks down the humidified water remaining in the container downward, There is a possibility that water may be ejected from the inlet through the bubble generator and the inlet pipe. In particular, when water spouts to the upstream side of the humidifier, the nitrogen adsorbent absorbs moisture, which may cause the adsorption bed to deteriorate. On the other hand, if the airtightness of the lead-out nozzle and the lead-out port is lost before the introduction side, the residual pressure of the oxygen-enriched gas on the product tank side flows into the humidifier from the introduction nozzle.
  • the introduction nozzle Y ring 513 and the discharge nozzle Y ring 514 are installed in different positions in the height direction, and the discharge nozzle Y ring 514 is more in the introduction nozzle Y ring 513. It is installed at a lower position. Therefore, when removing the humidifier, the seal structure is always opened from the outlet nozzle side, and the oxygen-enriched gas staying in the humidification container as a positive pressure is released to the atmosphere from the outlet port on the outlet nozzle receiving side. With this structure, it is possible to prevent the humidified water from being ejected outside the humidifier.
  • FIG. 6A schematically show various embodiments of the connection part of the inlet and outlet of the humidifier lid, the inlet nozzle and outlet nozzle of the oxygen-enriched gas, and the sealing means. The specific structure of the humidifier body is omitted.
  • FIG. 6A is a configuration of the connection portion shown in FIG.
  • the diameters of the introduction nozzle 603a and the outlet nozzle 604a and the inlet 605a and the outlet 606a of the humidifier lid 602 fitted thereto are the same.
  • the position of the Y ring as a sealing means is provided on the mounting base side 607 where the outlet nozzle Y ring 614a is lower than the inlet nozzle Y ring 613a, and when the humidifier is removed, the tip of the outlet nozzle 604a The airtightness on the side is previously lost with respect to the introduction nozzle 603a.
  • 6B shows the Y ring installed from the nozzle tip at the same position, but the outlet nozzle 604b is shorter than the inlet nozzle 603b, and FIG.
  • FIG. 6C shows a humidifier by making the outlet nozzle 604c a multistage aperture.
  • FIG. 6D is a structure in which the airtightness on the side of the outlet nozzle is always lost by making the structure sealed at the tip of the outlet nozzle 604d.
  • FIG. 7 shows that the sealing means is installed not at the nozzle side but at the inlet and outlet of the humidifier lid.
  • FIG. 7A shows that the leading end of the outlet nozzle 704a has a taper so that the air tightness at the outlet nozzle side.
  • 7B is a structure in which a longitudinal groove is provided on the outer surface of the leading end of the outlet nozzle.
  • FIG. 7C is a position where the sealing means 714c of the outlet 706c is installed on the back side from the inlet 705c side. Furthermore, FIG. 7D shows a shape in which the shape of the outlet 706d is tapered.
  • the humidifier of the present invention can be used as a humidifier of an oxygen concentrator used as an oxygen supply source for oxygen inhalation therapy for patients suffering from respiratory organ diseases such as asthma, emphysema, and chronic bronchitis. it can.
  • the patient can use the oxygen concentrator, which is a medical device, more comfortably and safely without the problem of the humidified water flowing back to the oxygen concentrator or spouting to the outside during the removal and replacement of the humidifier. It becomes possible.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

L'invention porte sur un humidificateur qui est pourvu d'un moyen d'étanchéité et dans lequel, même si son intérieur est maintenu à une pression au-dessus de la pression atmosphérique, l'imperméabilité à l'air entre une buse d'extrusion et un orifice d'extrusion de section de couvercle de l'humidificateur est perdue plus tôt que l'imperméabilité à l'air entre une buse d'introduction et un orifice d'introduction de section de couvercle durant la séparation du couvercle de l'humidificateur de la buse d'introduction et de la buse d'extrusion, de telle sorte que l'eau humidifiée n'est pas éjectée par l'intermédiaire d'un générateur de bulles de l'humidificateur lorsque l'humidificateur est détaché d'un dispositif d'enrichissement en oxygène afin de le remplir à nouveau avec l'eau humidifiée.
PCT/JP2011/050592 2010-01-12 2011-01-07 Humidificateur et dispositif d'enrichissement en oxygène l'utilisant WO2011087110A1 (fr)

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JP2011550027A JP5390641B2 (ja) 2010-01-12 2011-01-07 加湿器およびそれを用いた酸素濃縮装置

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JP2010-003910 2010-01-12
JP2010003910 2010-01-12

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WO2011087110A1 true WO2011087110A1 (fr) 2011-07-21

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JP (1) JP5390641B2 (fr)
TW (1) TW201134510A (fr)
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Cited By (3)

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TWI802507B (zh) * 2022-09-19 2023-05-11 臺北醫學大學 醫療用氧氣加濕裝置及其使用方法
CN117797376A (zh) * 2024-01-17 2024-04-02 河北华中健康科技有限公司 一种制氧加湿装置及其使用方法

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TWI802507B (zh) * 2022-09-19 2023-05-11 臺北醫學大學 醫療用氧氣加濕裝置及其使用方法
JP7253217B1 (ja) * 2023-01-13 2023-04-06 株式会社Tamax オゾン注入装置及びオゾン注入器具
CN117797376A (zh) * 2024-01-17 2024-04-02 河北华中健康科技有限公司 一种制氧加湿装置及其使用方法

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