WO2014083593A1 - Dispositif de concentration d'oxygène - Google Patents

Dispositif de concentration d'oxygène Download PDF

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Publication number
WO2014083593A1
WO2014083593A1 PCT/JP2012/007684 JP2012007684W WO2014083593A1 WO 2014083593 A1 WO2014083593 A1 WO 2014083593A1 JP 2012007684 W JP2012007684 W JP 2012007684W WO 2014083593 A1 WO2014083593 A1 WO 2014083593A1
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WO
WIPO (PCT)
Prior art keywords
oxygen
unit
cannula
detection unit
main body
Prior art date
Application number
PCT/JP2012/007684
Other languages
English (en)
Japanese (ja)
Inventor
輝彦 大内
Original Assignee
株式会社医器研
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Filing date
Publication date
Application filed by 株式会社医器研 filed Critical 株式会社医器研
Priority to JP2014549648A priority Critical patent/JPWO2014083593A1/ja
Priority to PCT/JP2012/007684 priority patent/WO2014083593A1/fr
Publication of WO2014083593A1 publication Critical patent/WO2014083593A1/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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A61M16/0672—Nasal cannula assemblies for oxygen therapy
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • 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
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
    • A61M2205/3546—Range
    • A61M2205/3569—Range sublocal, e.g. between console and disposable
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
    • A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
    • A61M2205/3592—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using telemetric means, e.g. radio or optical transmission
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated
    • A61M2205/8212—Internal energy supply devices battery-operated with means or measures taken for minimising energy consumption
    • 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
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/084—Supporting bases, stands for equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • 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
    • 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
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0415—Beds in cartridges

Definitions

  • the present invention relates to an oxygen concentrator for separating and producing oxygen from the air.
  • a patient connects a tube of an oxygen inhaler such as a nasal cannula and a nasal mask (hereinafter referred to as nasal cannula) to an oxygen outlet of the oxygen concentrator through a coupler. Then, the concentrated oxygen coming out from the oxygen outlet is sucked.
  • an oxygen inhaler such as a nasal cannula and a nasal mask (hereinafter referred to as nasal cannula)
  • nasal cannula a nasal mask
  • the concentrated oxygen coming out from the oxygen outlet is sucked.
  • a patient is inhaling concentrated oxygen using a nasal cannula
  • smoking or using fire near the oxygen concentrator is strictly prohibited because oxygen is a combustible gas. Nevertheless, for example, if a patient smokes, there is a risk that an accident may occur by directly igniting a tube such as a nasal cannula. is there.
  • the oxygen concentrator of Patent Document 2 has a configuration in which a temperature detection sensor is arranged in the middle of the nasal cannula and the supply of oxygen is stopped by the detection signal.
  • a very simple mechanism of stopping the supply for example, there is a heater in the room where the oxygen concentrator is used, and the oxygen concentrator is shut off just by being exposed to the radiant heat, or the oxygen concentrator is installed in a closed room in summer. If the ambient temperature rises, the device may not operate by itself, which is not easy to use and is not feasible. Therefore, the present invention ensures safety in use by reliably detecting ignition when a patient is inhaling oxygen using a cannula such as a nasal cannula and the cannula or tube is ignited by fire or misfire.
  • An object of the present invention is to provide an oxygen concentrator that can be secured.
  • the oxygen concentrator of the present invention is an oxygen concentrator that attaches a cannula to a main body and supplies concentrated oxygen generated in the main body to a patient through the cannula, and is attached to an appropriate position of the cannula.
  • a detector that is activated and detects that the cannula has been ignited, a detector holding device having a communication unit that transmits a signal of the detector, and the signal from the communication unit of the detector And an oxygen shut-off operation unit that discriminates the ignition of the cannula and shuts off the supply of the concentrated oxygen.
  • the oxygen blocking operation unit receives a signal from the detection unit of the detection unit holding tool, and the oxygen blocking operation unit determines whether the cannula is ignited by simply mounting the detection unit holding tool. Then, the oxygen cutoff operation part cuts off the supply of concentrated oxygen.
  • a cannula such as a nasal cannula
  • the ignition is reliably detected to ensure safety in use. Can do.
  • the detection unit holder is a socket that detachably attaches the tube of the cannula to the oxygen outlet portion on the main body side, and the socket has the socket attached to the oxygen outlet portion on the main body side.
  • a mounting detection sensor that detects this, and a control unit that issues a warning if the mounting detection sensor detects that the socket has not been mounted on the main body side oxygen outlet.
  • the detection unit holder is a socket for detachably attaching the cannula tube to the oxygen outlet portion on the main body side, and the socket is connected to the oxygen outlet portion on the main body side. It is characterized by having a mounting detection sensor for detecting that it is mounted, and a control unit that starts when the mounting detection sensor detects the mounting of the socket on the main body side oxygen outlet. According to the above configuration, even if the oxygen concentrator is to be started up without attaching the socket for detecting the flame, the control unit cannot be started, so that the device can always be used in a safe state. When the detection unit holder is mounted on the oxygen outlet portion side on the main body side, activation of the control unit of the detection unit holder is started, so that the power consumption used can be reduced as much as possible.
  • the detection unit holder is an attachment that is detachably attached to an appropriate position of the tube of the cannula
  • the attachment is an attachment detection sensor that detects that the attachment is attached to the tube.
  • a controller that starts when the attachment detection sensor detects the attachment of the attachment to the tube.
  • the oxygen shut-off operation unit receives a signal from the detection unit by wireless communication.
  • the detection unit is a temperature sensor that detects a temperature of the cannula.
  • a fire or an abnormal overheating environment can be detected only by the temperature sensor detecting the temperature of the cannula.
  • the oxygen shut-off operation unit includes a notification unit that notifies the ignition of the cannula.
  • blocking operation part can alert
  • the oxygen shut-off operation unit includes an oxygen shut-off unit that shuts off the supply of the concentrated oxygen by closing the oxygen flow path of the pipe by pushing the pipe when detecting that the cannula is ignited.
  • the oxygen blocking unit can immediately block the supply of concentrated oxygen, it is possible to ensure safety in use.
  • the oxygen shut-off operation unit shuts off a valve provided in a supply path to close an oxygen flow path of the pipe and shut off the supply of the concentrated oxygen. It has an oxygen blocking part.
  • a cannula such as a nasal cannula
  • the ignition is surely detected to ensure safety in use.
  • An oxygen concentrator that can be secured can be provided.
  • FIG. 1 is an external perspective view of an oxygen concentrator according to a first embodiment of the present invention.
  • FIG. 2 is a schematic plan view of an operation panel of the oxygen concentrator in FIG. 1.
  • FIG. 3 is a three-dimensional exploded view seen from the back side in order to show the internal configuration of the oxygen concentrator in FIG. 1.
  • It is a systematic diagram of the oxygen concentrator of FIG. It is a figure which shows the preferable structural example of the overheat detection unit of the oxygen concentration apparatus of FIG. It is a figure which shows the structural example of a coupler socket, and the structural example of the oxygen interruption
  • FIG. 10 It is a perspective view which shows the structural example of the connection end part of a tube of a cannula, a coupler socket, and an oxygen outlet part. It is sectional drawing which shows the state which the vicinity of the oxygen exit part of the oxygen concentrator, the coupler socket, and the connection end of the tube of the cannula were connected. It is an external appearance perspective view which shows the oxygen concentration apparatus concerning 2nd Embodiment of this invention. It is a figure which shows the structural example of another coupler socket arrange
  • FIG. 1 is an external perspective view of the oxygen concentrator according to the first embodiment of the present invention
  • FIG. 2 is a schematic plan view of an operation panel of the oxygen concentrator in FIG. 1 and 2
  • the oxygen concentrator 10 includes a vertically long main body case 11 (example of main body) provided with a handle 12 serving as a handle at the upper end, for example.
  • the internal structure of the oxygen concentrator 10 excluding the main body case 11 is shown in FIG.
  • an operation panel 13 is provided in the vicinity of the upper end of the main body case 11 with a slight forward inclination.
  • a dial type power switch 14 On the operation panel 13, in order from the left, a dial type power switch 14, an oxygen outlet 15, an oxygen flow rate setting switch 16, for example, LED (light emitting diode) or a liquid crystal display or the like is displayed with segment numbers.
  • An oxygen flow rate display unit 18 for performing the above is disposed.
  • a coupler socket 400 as a connection body is illustrated at a position above the oxygen outlet portion 15.
  • the coupler socket 400 is attached to the outlet recess 15W formed in the oxygen outlet portion 15, so that the coupler socket 400 can be detachably connected to the oxygen outlet portion 15 in an airtight state. Further, as shown in FIG.
  • the coupler socket 400 has a connecting tip portion 400S, and this tip portion 400S is connected to the connecting end portion 23T of the tube 23 of the cannula 22 for oxygen suction. Removable connection.
  • the oxygen outlet portion 15 can be detachably connected to the connection end portion 23T of the cannula 22 via the coupler socket 400.
  • the carrier 25 used during movement such as going out can be fixed to the bottom lid 26 by screwing two fixing screws through the holes 10a.
  • the carrier 25 is provided with holes 10b that can accommodate the rubber feet 27 described above at corresponding positions, and resin free casters are disposed at the four corners of the lower surface of the carrier 25.
  • FIG. 2 is an enlarged view of the operation panel 13 shown in FIG.
  • the power switch 14 shown in FIG. 2 is operated between the illustrated OFF position and the ON position rotated clockwise by about 90 degrees.
  • an operation state lamp 14B incorporating a light emitting diode or the like that lights in green and red.
  • a battery remaining amount monitor 14C is provided on the operation state lamp 14B.
  • an alarm display unit 15B in which the letters “check” or a character display corresponding to this is printed horizontally is arranged, and green and red are displayed below the alarm display unit 15B.
  • an oxygen lamp 15C having a built-in light emitting diode is provided.
  • the oxygen flow rate setting switch 16 shown in FIG. 2 has flat switches 16a and 16b on which up and down arrows are printed. This oxygen flow rate setting switch 16 presses oxygen concentrated to about 90% or more in a 0.25L step or a 0.01L step from a minimum of 0.25L (liter) to a maximum of 5L per minute. Each time, the oxygen flow rate can be set. When the upper oxygen flow rate display unit 18 displays the current flow rate setting, the oxygen generation capacity can be changed.
  • the synchronization lamp 19 is provided to notify the patient by lighting or flashing that the concentrated oxygen is being operated in an intermittent supply state by respiratory synchronization.
  • FIG. 3 is a three-dimensional exploded view seen from the back side in order to show an internal configuration example of the oxygen concentrator 10.
  • a resin bottom lid 26 having the rubber feet 27 fixed to the four corners is disposed at a lower position in FIG. 3, and this bottom lid 26 is indicated by a two-dot chain line in FIG.
  • the bottom lid 26 is fixed to the bottom surface of the resin base body 40 using a plurality of fixing screws.
  • the base body 40 is formed in a box shape in which wall surfaces continuously formed from the four surfaces downward are integrally formed, and the connectors 131 and 130 are fixed on the back wall surface.
  • a box-shaped two-stage soundproof room 34 is arranged on the base body 40.
  • the base body 40 has exhaust ports 40c, 40c facing the exhaust ports of a back cover (not shown) provided in the case body 11 of FIG. 1 and communicating with the internal power supply chamber. A final external exhaust is performed through these exhaust ports 40c.
  • the upper surface of the base body 40 is formed flat as shown in the figure, and an upright portion 40f having holes for fixing with fixing screws from the three sides of the left and right surfaces and the rear surface of the two-stage soundproof chamber 34. Are integrally molded from three sides. Further, an exhaust opening 40b communicating with the power supply chamber is further formed in the upper surface of the base body 40.
  • the two-stage soundproof chamber 34 shown in FIG. 3 has two blower fans 104 fixed on an upper member 36 that can be taken in and out from the side on the front side of the drawing, and on a lower member 37 that can also be taken in and out from the side. It has the airtight box 35 which arrange
  • the two-stage soundproof chamber 34 is made of a lightweight metal plate.
  • the two-stage soundproof chamber 34 is configured to fix the soundproof chamber lid 39 shown on the front side in FIG. 3 and the soundproof chamber lid 38 shown on the back side to the sealed box 35 with a plurality of fixing screws. Yes.
  • the two-stage soundproof chamber 34 is bent as shown in the drawing and has an attachment portion in which an insert nut is implanted. Provided. A soundproof material 51 is laid inside the two-stage soundproof chamber 34.
  • the two-stage soundproof chamber 34 is a vibration-damping member, and a sheet-like material made of a mixture of synthetic rubber and special resin material is laid, and is a two-stage type made of a thin aluminum plate. The soundproof room 34 itself is prevented from vibrating due to resonance or the like.
  • each blower fan 104 is fixed to the upper member 36 using a bracket so that each blower port faces downward.
  • a fan rotation detection unit 126 As shown in FIG. 3, each fan 104 is provided with a fan rotation detection unit 126.
  • a rotation detector such as an interrupter type photo sensor can be used.
  • cylindrical suction cylinders 108a and 108b are arranged side by side with the intake buffer tank 101, and a fixture 49k fixed to the side wall surface. After passing through the band 49, the band 49 is fastened and fixed as shown.
  • the adsorption cylinders 108a and 108b are placed on the upper surface of the base body 40, a part of the buffer tank 101 having a long length is inserted and fixed in the opening 40d.
  • the product tank 111 shown in FIG. 3 is made of polyethylene resin to be vacuum-formed, and is disposed on the upper side in the longitudinal direction as shown in the figure.
  • the shielding plate 32 is also made of resin for weight reduction, and is provided with a speaker 23 and an external connector 133 as shown, and is fixed to the outer wall surface above the two-stage soundproof chamber 34 using a fixing screw.
  • the mounting part that also serves as a reinforcement is integrally molded.
  • heat dissipating members 52 and 53 are fixed with fixing screws, and each control board 200C (a board including the CPU 200 shown in FIG. 4) and the control board 201 ( The substrate including the motor control unit 201 shown in FIG. 4 and other elements are fixed in an upright state.
  • the heat dissipation members 52 and 53 enhance the heat dissipation effect of the control boards 200C and 201. Since a part of the shielding plate 32 comes out to the outside as described above, it is colored black using a black pigment.
  • an oxygen sensor 114 On the right side wall surface of the two-stage soundproof chamber 34, an oxygen sensor 114, a proportional opening valve 115, a pressure regulator 112, a flow sensor 116, a demand valve 117, a circuit board 202, and a temperature sensor 125 are provided. Is fixed.
  • FIG. 4 is a system diagram (piping diagram) in the main body case 11 of the oxygen concentrator 10. As shown in FIG. 4, each element of the system diagram is arranged in the main body case 11.
  • the double line is a flow path of air, oxygen, and nitrogen gas, and is generally indicated by pipes 24a to 24g and 24R.
  • a thin solid line indicates power supply or electric wiring of an electric signal.
  • a compressor 105 compressed air generating unit
  • a decompressing unit negative pressure generating unit
  • the present invention is not limited to this configuration, and it goes without saying that the compressed air generation unit and the negative pressure generation unit may be configured separately.
  • the negative pressure generator may not be provided.
  • a front cover and a back cover for introducing outside air into the inside through the intake port and discharging them to the outside through the exhaust port are illustrated as broken containers in FIG. .
  • air (outside air) passes through the outside air introduction filter 20 built in the filter replacement lid and is introduced into the oxygen concentrator 100 in the direction of arrow F.
  • This air enters the two-stage soundproof chamber 34 indicated by a broken line by blowing air from the pair of blowing fans 104 and 104.
  • the air enters the two-stage soundproof chamber 34 through the opening 35 a formed in the side surface of the two-stage soundproof chamber 34 (shown by a broken line).
  • the blower fans 104 and 104 are disposed on the upper member, and the compressor 105 is disposed in a vibration-proof state on the lower member.
  • an opening of the pipe 24a is provided in the two-stage soundproof chamber 34, and is provided in the middle of the pipe 24a.
  • an intake filter 101 that performs secondary filtration and a large-capacity intake muffler 102 are provided. With this configuration, the intake noise of the raw material air is reduced so that the intake noise of the raw material air remains in the two-stage soundproof chamber 34.
  • the two-stage soundproof chamber 34 shown in FIG. 4 is made of a strengthened light alloy, aluminum alloy, titanium alloy plate or other suitable material having a thickness of about 0.5 mm to 2.0 mm for weight reduction. Thus, when comprised from a thin plate, the intensity
  • a compressor 105 that compresses raw material air to generate compressed air is disposed inside the two-stage soundproof chamber 34.
  • the compressor 105 preferably includes a compression unit 105a and a decompression unit 105b, and is fixed in an anti-vibration state. In the vicinity of the compressor 105, a temperature sensor 125 is disposed at a location where the temperature environment is substantially the same.
  • the filtered raw material air is pressurized by the compression means 105a of the compressor 105 to become compressed air.
  • the compressed air is sent to the pipe 24c in a state where the temperature has risen.
  • a lightweight metal pipe that is excellent in cooling and to cool by blowing air from the blowing fan 104.
  • Compressed air is alternately supplied to the first adsorption cylinder body 108a and the second adsorption cylinder body 108b as the adsorption section via the pipe 24c.
  • switching valves three-way switching valves
  • 109a and 109b are connected as shown.
  • a pipe 24f communicating with the decompression means 105b is provided.
  • a plurality of (at least two) negative pressure breaking first valves 120 and negative pressure breaking second valves (pressure regulating valves) 121 are arranged in series.
  • the pressure in the pipe 24f is controlled to near atmospheric pressure during the pressure equalization process, and the pressure is controlled below a predetermined flow rate. Therefore, the vibration of the compressor is suppressed and the electricity is reduced.
  • zeolite is used as an example of the catalyst adsorbent stored in the first adsorption cylinder 108a and the second adsorption cylinder 108b shown in FIG. 4, zeolite is used.
  • An equal pressure valve 107 including a check valve, a throttle valve, and an on-off valve is branched and connected to the outlet side above the first adsorption cylinder 108a and the second adsorption cylinder 108b.
  • a pipe 24d is formed so as to join the downstream side of the equal pressure valve 107, and a product tank 111 serving as a container for storing oxygen having a concentration of about 90% or more generated by separation is connected to the pipe 24d.
  • a pressure sensor 208 for detecting the pressure in each adsorption cylinder is provided.
  • a pressure regulator 112 that automatically adjusts the pressure of oxygen on the outlet side to be constant is provided.
  • a zirconia-type or ultrasonic-type oxygen (concentration) sensor 114 is connected to the pipe 24e on the downstream side of the pressure regulator 112, and the oxygen concentration is detected intermittently (every 10 to 30 minutes) or continuously. I am doing so.
  • a proportional opening valve 115 that opens and closes in conjunction with the oxygen flow rate setting switch 16 is connected downstream of the oxygen (concentration) sensor 114, and an oxygen flow rate sensor 116 is connected downstream of the proportional opening valve 115. Has been.
  • a demand valve 117 is connected to a pipe 24R on the downstream side of the oxygen flow sensor 116 via a negative pressure circuit board for breathing synchronization control.
  • the pipe 24R passes through a sterilization filter 119 and passes through the oxygen concentrator 10. It is connected to the oxygen outlet part 15.
  • the power supply system shown in FIG. 4 includes an AC (commercial alternating current) power supply connector 130, a built-in battery 228 built in the apparatus body, an external battery 227 detachably provided via a connector 131, a power supply, and the like.
  • the control circuit 226 is configured.
  • the connector 130 is connected to a switching regulator type AC adapter 19 that rectifies the DC voltage to a predetermined DC voltage.
  • the built-in battery 228 and the external battery 227 are rechargeable secondary batteries, and the built-in battery 228 is charged by receiving power from the power supply control circuit 226.
  • the built-in battery 228 can be repeatedly charged and discharged at least about 500 times (several hundred times) and has a management function such as the remaining battery level, the number of charge / discharge cycles used, the degree of deterioration, and the output voltage. It is preferable to have a management function in which the remaining battery capacity, remaining charge capacity, and number of charge / discharge cycles can be confirmed with an external portable terminal or the like.
  • the external battery 227 of FIG. 4 can be charged by receiving power supplied from the power supply control circuit 226 in a connected state via the connector 131, but is normally repeatedly charged using a separately prepared battery charger. . Or you may prepare as the external battery 227 which integrated the battery charger designed exclusively.
  • the oxygen concentrator has a first power supply state that operates by receiving power supply from the AC adapter 19, and a second power supply state that operates by receiving power supply from the built-in battery 228.
  • the power supply state is automatically switched to one of three power supply states, ie, a third power supply state that operates by receiving power supply from the external battery 227.
  • the power supply control circuit 226 is controlled by the central control unit 200 so that the priority order for the automatic power supply switching is automatically determined in the order of the first power supply state, the third power supply state, and the second power supply state.
  • the power control circuit 226 and the built-in battery 228 are disposed on the bottom surface as will be described later in order to lower the center of gravity of the oxygen concentrator 100.
  • the external battery 227 can be used when the user goes out by being incorporated in the accommodating portion of the carrier 25. Since the external battery 227 is provided with the remaining charge amount display unit and the like, the remaining usage time can be known together with the voice guide.
  • the AC adapter 19 shown in FIG. 4 is preferably a switching regulator type that can generate a predetermined DC voltage without being affected by the difference in frequency and voltage fluctuation, and can be configured to be small and light.
  • An expression may be used.
  • the built-in battery 228 and the external battery 227 are preferably lithium ion or lithium hydrogen ion secondary batteries that have little memory effect during charging and can be fully charged even during recharging, but may be conventional nickel cadmium batteries. Further, in case of an emergency, the external battery may be configured as a dry battery box available anywhere.
  • the central control unit 200 of the oxygen concentrator 100 has a function of switching to an optimal operation mode according to the amount of oxygen to be generated.
  • the compressor 105 and the blower fan 104 are automatically generated with a large amount of oxygen,
  • the built-in battery 228 is kept at a high speed by performing a rotational drive at a low speed when a small amount of oxygen is generated.
  • consideration is given so that it is possible to cope with a sudden outing or a power failure.
  • the central control unit 200 in FIG. 4 generates audio contents by being connected to the motor control unit 201 and the speaker 23S, which respectively control the drive of the DC motor, which is the rotating body of the compressor 105, and the motor of the blower fan 104.
  • the voice control unit 203 and the oxygen flow rate display unit 18 are connected.
  • the central control unit 200 includes a ROM (read only memory) that stores a predetermined operation program, and is further connected to a storage device 210, a nonvolatile memory 205, a temporary storage device 206, and a real time clock 207.
  • the central control unit 200 is configured to be able to access stored contents by connecting to a communication line or the like via the external connector 133.
  • a negative pressure breaking first valve 120, a negative pressure breaking second valve 121, an oxygen concentration sensor 114, a proportional opening valve 115, a flow rate sensor 116, and a valve for controlling the demand valve 117 and a flow rate control unit 202 for controlling are provided.
  • the central control unit 200 is electrically connected. However, illustration of wiring is omitted for simplification of illustration in FIG.
  • the compressor 105 having a total weight of about 1 kg is a variable speed controller built in the motor control unit 201, and is driven by a sine wave drive waveform to reduce the operation sound.
  • the compressor 105 can be operated at various speeds, can generate the required vacuum (negative pressure) / positive pressure level and flow rate, generates only a little noise and vibration, generates a little heat, It is preferable that it is small and light and can be operated with little power consumption.
  • the speed of the compressor 105 can be freely changed based on the activity level and environmental conditions of the patient.
  • the demand valve 117 determines that the patient's oxygen demand is relatively low, such as when the patient is sitting or sleeping, and the patient's oxygen demand is relatively low
  • the drive rotation of the compressor 105 The speed can be reduced automatically. It can also automatically increase speed when it is determined that the patient's oxygen demand is relatively high and the oxygen demand has increased, such as when the patient is standing, active, or at a high altitude with a low oxygen concentration. it can.
  • the motor control described above reduces the power consumption of the oxygen concentrator 10 as a whole, extending the life of the rechargeable battery and reducing the weight and size of the rechargeable battery. Reliability can be improved by lowering the degree of wear and extending the service life.
  • the compressor 105 has both functions of generating compressed air and generating negative pressure as described above, and the rotation speed is automatically controlled according to the oxygen flow rate taken out. Specifically, the rotation speed is controlled between 500 rpm and 3000 rpm, and the operation life when rotating at a normal speed of about 1700 rpm can be extended to 15000 hours.
  • the compressor 105 has a performance of compressing air to 100 kPa, preferably about 75 kPa. In addition, it has a function of notifying by voice guidance when the above operation life has passed.
  • a DC brushless fan is used as the fan motor that drives the blower fan 104, which is a cooling fan, and the rotational speed control can be easily performed by PWM control or voltage control.
  • the overheat detection unit 600 shown in FIG. 5 will be described with reference to FIGS. 4 and 5. It is a figure which shows the preferable structural example of the overheat detection unit of the oxygen concentration apparatus of FIG.
  • the oxygen concentrator 10 is provided with an overheat detection unit 600.
  • the overheat detection unit 600 is a device for detecting the overheat due to the temperature rise caused by the ignition and stopping the fire when the tube 23 of the cannula 22 is ignited.
  • the overheat detection unit 600 includes a coupler socket 400 having a detection unit 370 and an oxygen shutoff operation unit 500 disposed inside the main body case 11.
  • Coupler socket 400 is an example of a detection unit holder for holding detection unit 370.
  • the piping 24R located near the oxygen outlet 15 disposed in the main body 11 shown in FIG. 4 is an oxygen path for guiding the concentrated oxygen to the oxygen outlet 15.
  • the material of the pipe 24R has flexibility similar to the tube 23 of the cannula 22 so that the supply of the concentrated oxygen can be cut off by mechanical crushing by the operation of the oxygen cut-off operation unit 500.
  • it is made of vinyl chloride, polyethylene, or silicone rubber.
  • the pipe 24R and the tube 23 of the cannula 22 are preferably self-digestible vinyl chloride that does not burn at normal atmospheric oxygen concentration.
  • the pipe 24R and the tube 23 of the cannula 22 may be flame retardant fluororesin.
  • FIG. 6 shows a preferred configuration example of the overheat detection unit 600, showing a configuration example of the coupler socket 400 and a configuration example of the oxygen shut-off operation unit 500 in the main body case 11.
  • a coupler socket 400 illustrated in FIG. 5 includes a detection unit 370.
  • the detection unit 370 has a function of wirelessly transmitting temperature information obtained by measuring the temperature of the cannula 22 to the oxygen cutoff operation unit 500 side.
  • the detection unit 370 includes a control unit 310, a temperature sensor 320, a communication unit 325, a battery 311, and a mounting detection sensor 390.
  • the battery 311 is arranged to supply power to the control unit 310 and the like, and employs a small battery such as a button battery.
  • the temperature sensor 320 is electrically connected to the control unit 310, detects a temperature rise due to ignition of the cannula 22, and sends a temperature detection signal TS to the control unit 310.
  • a temperature sensor 320 for example, a C-MOS semiconductor sensor (band gap circuit) can be employed.
  • the control unit 310 transmits the temperature detection signal TS to the oxygen cutoff operation unit 500 through the communication unit 325 wirelessly.
  • the mounting detection sensor 390 shown in FIGS. 5 and 6 is a contact sensor such as an on / off switch.
  • this attachment detection sensor 390 detects that the coupler socket 400 is attached to the oxygen outlet 15 as shown in FIG. 5, the attachment detection sensor 390 sends an attachment detection signal DF to the control unit 310.
  • the control unit 310 issues a warning by turning on the alarm lamp 603 and / or sounding the alarm buzzer 604. Thereby, the user can always be encouraged to use the oxygen concentrator safely.
  • the control unit 310 prevents the user from starting even if the user tries to start the device before receiving the detection signal DF.
  • the oxygen concentrator is not operated without the coupler socket 400 being mounted, so that the apparatus can always be operated in a safe state.
  • the control unit 310 activates a function of wirelessly transmitting temperature information obtained from the temperature sensor 320 to the oxygen cutoff operation unit 500 side. By doing so, the control unit 310 does not start until the coupler socket 400 is attached to the oxygen outlet unit 15, so that the consumption of the battery 311 can be minimized.
  • the temperature sensor 320 is disposed in the coupler socket 400, and this temperature sensor 320 is disposed, for example, at the distal end portion 400S.
  • the temperature sensor 320 is disposed at a position closest to the tube 23 of the cannula 22, it is possible to quickly detect an overheating state due to a temperature rise of the tube 23 of the cannula 22 at a position closest to the tube 23. it can.
  • the oxygen cutoff operation unit 500 in the main body case 11 includes a control unit 602, an alarm lamp 603, an alarm buzzer 604, a battery 605, an oxygen cutoff unit 330, and a communication unit 328.
  • the battery 605 is arranged to supply power to the control unit 602, the oxygen blocking unit 330, and the like, and employs a small battery such as a button battery. You may use the power supply from the power supply control circuit 226 of a main body.
  • the control unit 602 controls the operations of the alarm lamp 603, the alarm buzzer 604, and the oxygen blocking unit 330.
  • the oxygen blocking section 330 mechanically crushes the middle portion of the pipe 24R to close the oxygen path 333 of the pipe 24R so that the concentrated oxygen cannot be supplied to the oxygen outlet section 15 shown in FIG.
  • the communication unit 321 and the communication unit 322 for example, Bluetooth 4.0 (registered trademark) (standard for short-range wireless communication) or ZigBee (wireless communication standard established for home appliances), which is a small and low power consumption communication means, Alternatively, an NFC communication unit (Near Field Communication, an international standard for low-power wireless communication performed at a distance of several tens of centimeters) or the like can be employed. That is, the communication unit 321 and the communication unit 322 can establish wireless communication as a pair, and each communication unit includes an oscillator, a coil, a transmission / reception antenna, and the like for communication.
  • the communication unit 328 in FIG. 6 receives the temperature detection signal TS from the temperature sensor 320 from the communication unit 325.
  • the temperature detection signal TS is sent to the control unit 602.
  • the controller 602 receives the temperature detection signal TS and determines that the temperature of the tube 23 has risen above a certain temperature, for example, 40 ° C. or higher, preferably 40 ° C. or higher, and 1 ° C./sec.
  • the control unit 602 operates the oxygen blocking unit 330 to mechanically crush the middle of the pipe 24R and immediately closes the oxygen path 333. Thereby, supply of the concentrated oxygen from the oxygen outlet part 15 shown in FIG. 4 can be interrupted immediately.
  • the control unit 602 can cause the alarm buzzer 604 to generate an alarm sound, for example, by turning on the alarm lamp 603 serving as a notification unit along with the interruption of oxygen.
  • FIG. 7 shows an example of the structure of the oxygen blocking unit 330.
  • the oxygen blocking unit 330 shown in FIG. 7 has a structure for performing an operation of blocking the supply of concentrated oxygen by an electric signal from the control unit 602.
  • the driving unit 331 and a pressing member 332 as an example of a pressing unit are provided. Have. As shown in FIGS. 7A and 7B, the pressing member 332 mechanically presses the pipe 24R directly against the fixing portion 335 and elastically deforms the pipe 24R, whereby the oxygen path of the pipe 24R. 333 is closed.
  • the drive unit 331 is a linear motion type electromagnetic actuator having a rod 334, for example, and the pressing member 332 is fixed to the tip of the rod 334.
  • the oxygen path 333 of the pipe 24R is secured.
  • the control unit 602 controls the drive unit 331.
  • the rod 334 is linearly moved.
  • the pressing member 332 can crush the piping 24 ⁇ / b> R, which is an elastically deformable portion, against the pressing portion 335, thereby immediately closing the oxygen path 333.
  • the concentrated oxygen cannot be supplied from the pipe 24R to the oxygen outlet portion 15, the supply of the concentrated oxygen to the cannula 22 side can be immediately shut off.
  • the oxygen blocking section 330 shown in FIG. 7 it is only necessary to push and close the tube 303, so that it can be made cheaper than using an expensive solenoid valve.
  • the path can be closed by closing the demand valve 117.
  • FIG. 8 is a perspective view showing a structural example of the connection end 23T of the tube 23 of the cannula 22, the coupler socket 400, and the oxygen outlet portion 15.
  • FIG. 9 is a cross-sectional view showing a state where the vicinity of the oxygen outlet portion 15 of the oxygen concentrator 10, the coupler socket 400, and the connection end portion 23 ⁇ / b> T of the tube 23 of the cannula 22 are connected. As shown in FIG.
  • the oxygen outlet 15 of the oxygen concentrator 10 has an outlet recess 15W, and the bottom 15B of the outlet recess 15W is formed to be inclined by a predetermined angle ⁇ with respect to the horizontal line HL. Yes.
  • the oxygen outlet portion 15 is easy to see facing the patient, so that the coupler socket 400 can be easily attached and detached.
  • the oxygen outlet portion 15 is fixed in a vertical position with respect to the bottom portion 15 ⁇ / b> B in the outlet recess 15 ⁇ / b> W. As shown in FIGS. 8 and 9, the oxygen outlet portion 15 is connected to the pipe 24 ⁇ / b> R via a connecting member 420.
  • the oxygen outlet portion 15 has a ring-shaped flange portion 15F and cylindrical portions 15G and 15H.
  • the oxygen outlet portion 15 is made of a metal material having high thermal conductivity and not easily rusted, such as a copper alloy or an aluminum alloy.
  • the coupler socket 400 shown in FIG. 8 can be attached and connected to the oxygen outlet portion 15 with one touch. That is, the coupler socket 400 has a push button 400N and a tip portion 400S. By pulling the coupler socket 400 upward while the patient presses the push button 400N, the coupler socket 400 can be detached from the oxygen outlet portion 15 with one touch. In addition, when the patient pushes the coupler socket 400 in the reverse direction while pushing the push button 400N, the coupler socket 400 can be attached and connected to the oxygen outlet portion 15 with one touch.
  • the connecting end 23 ⁇ / b> T of the cannula 22 uses the coupler socket 400 with respect to the oxygen outlet 15 of the oxygen concentrator 10. Connect.
  • the concentrated oxygen can be supplied to the patient from the oxygen outlet 15 through the coupler socket 400 and the cannula 22.
  • oxygen can be sent, for example, at a maximum flow rate of 5 L / min, and the patient can inhale oxygen concentrated to about 90% or more using the cannula 22.
  • the communication unit 325 of FIG. 6 transmits the temperature detection signal TS from the temperature sensor 320 to the communication unit 328 of the oxygen cutoff operation unit 500, and the communication unit 328 receives the temperature from the communication unit 325.
  • the temperature detection signal TS is sent to the control unit 602.
  • the control unit 602 determines that the temperature of the tube 23 has risen above a certain temperature, for example, 40 ° C. or higher. 330 is operated and the middle of the pipe 24R is mechanically crushed and closed.
  • the oxygen blocking section 330 mechanically crushes and closes the middle of the pipe 24R.
  • the oxygen blocking section 330 closes the middle of the pipe 24R, so that the oxygen path 333 can be immediately closed. Therefore, it is possible to immediately block the supply of concentrated oxygen to the oxygen outlet 15 side. That is, from the state where the oxygen path 333 of the pipe 24R shown in FIG. 7A is opened, the control unit 602 controls the driving unit 331 to linearly move the rod 334 as shown in FIG. 7B.
  • the pressing member 332 can mechanically crush the piping 24R, which is an elastically deformable portion, against the pressing portion 335, thereby closing the oxygen path 333. Thereby, since the concentrated oxygen cannot be supplied from the pipe 24R to the oxygen outlet portion 15, the supply of the concentrated oxygen to the cannula 22 side can be immediately shut off.
  • control unit 602 shown in FIG. 6 turns on an alarm lamp 603 serving as a notification unit together with the oxygen shut-off operation, generates an alarm sound by the alarm buzzer 604, and notifies the patient and the manager.
  • the patient and the administrator can recognize and deal with the fact that the occurrence of a fire and the oxygen blocking operation have been performed on the main body case 11 side.
  • the structure of the oxygen blocking unit 330 is not limited to the structure shown in FIG. 6A, but may be a structure in which the pipe 24R is pushed and closed by rotating a rotating cam by a motor, for example.
  • FIG. 10 is an external perspective view showing an oxygen concentrator 10A according to a second embodiment of the present invention.
  • FIG. 11 shows a configuration example of another coupler socket 400A arranged in the oxygen concentrator 10A in FIG.
  • blocking operation part 500 in case 11 is shown.
  • the overheat detection unit 600A shown in FIG. 11 is a device for stopping the fire by detecting overheating due to the ignition when the tube 23 of the cannula 22 is ignited.
  • the overheat detection unit 600 ⁇ / b> A includes a coupler socket 400 ⁇ / b> A having a detection unit 370 and an oxygen cutoff operation unit 500 disposed inside the main body case 11.
  • the coupler socket 400A is an example of a detection unit holder for holding the detection unit 370.
  • FIG. 11 Another coupler socket 400A shown in FIG. 11 and the coupler socket 400 shown in FIG. 6 have the same structure.
  • the detection unit 370 illustrated in FIG. 11 may be disposed not only in another coupler socket 400A illustrated in FIG. 10 but also in the coupler socket 400 illustrated in FIG.
  • the structure of the detection unit 370 shown in FIG. 11 is the same as that of the detection unit 370 shown in FIG.
  • blocking operation part 500 in the main body case 11 shown in FIG. 11 is the same as the structure of the oxygen interruption
  • this other coupler socket 400A uses the coupler plug 400B, which is a separate member, to connect the connection end 23T of the tube 23 of the cannula 22 to the connection end 23R of the extension tube 23C. Removably connected. Moreover, another connecting end 23S of the extension tube 23C can be detachably connected to the oxygen outlet 15 of the main body case 11 using the coupler socket 400. In this way, by using another coupler socket 400A, coupler plug 400B, and extension tube 23C, the length of the cannula 22 can be extended as necessary as compared with the case where only the tube 23 of the cannula 22 is used. . For this reason, the patient can receive oxygen supply even at a position away from the main body case 11.
  • the detection unit 370 can be arranged in the coupler plug 400B instead of being arranged in another coupler socket 400A.
  • the coupler plug 400 ⁇ / b> B is an example of a detection unit holder that holds the detection unit 370.
  • the structure and effect of the other components of the oxygen concentrator 10A of FIGS. 10 and 11 are substantially the same as the structure and effect of the corresponding other components of the oxygen concentrator 10 shown in FIG. I will use the explanation.
  • the attachment detection sensor 390 illustrated in FIG. 11 is a contact sensor such as an on / off switch.
  • the mounting detection sensor 390 detects that the coupler socket 400A (or coupler plug 400B) is mounted on the coupler plug 400B, for example, and sends a mounting detection signal DF to the control unit 310. Thereby, the control unit 310 is activated, and the control unit 310 activates a function of wirelessly transmitting the temperature information obtained by measuring the temperature to the communication unit 328 of the oxygen cutoff operation unit 500. By doing so, the control unit 310 does not start until the coupler socket 400A (or the coupler plug 400B) is attached, so that the consumption of the battery 311 can be minimized.
  • FIG. 12 is an external perspective view showing the oxygen concentrator 10B of the present invention.
  • FIG. 13 can be detachably attached to the tube 23 of the cannula 22 of the oxygen concentrator 10B of FIG.
  • the structural example of the attachment tool 700 is shown.
  • FIG. 14 shows a configuration example of the attachment 700 and the oxygen cutoff operation unit 500 in the main body case 11.
  • the overheat detection unit 600 ⁇ / b> B is a device for stopping the fire by detecting overheat due to the ignition when the tube 23 of the neural 22 is ignited.
  • the overheat detection unit 600 ⁇ / b> B includes a fixture 700 having a detection unit 370 and an oxygen shutoff operation unit 500 disposed inside the main body case 11.
  • the attachment 700 has a structure that can be detachably attached to an appropriate position of the tube 23 by being retrofitted or externally attached.
  • the attachment 700 is an example of a detection unit holder that holds the detection unit 370.
  • the attachment 700 having the detection unit 370 can be attached to the appropriate position of the tube 23 by retrofitting or external attachment, so that the attachment position is not limited and can be freely attached. Therefore, since the attachment 700 having the detection unit 370 can be mounted at a position closer to the patient, there is an advantage that the overheated state of the cannula 22 can be detected more quickly. As shown in FIG.
  • the attachment 700 has a first pinching member 701, a second pinching member 702, a connecting shaft 703, and a spring 704.
  • the first sandwiching member 701 has a semi-cylindrical portion 701B for sandwiching the tube 23 and an operating portion 701C
  • the second sandwiching member 702 has a semi-cylindrical portion 702B for sandwiching the tube 23 and an operating portion 702C.
  • the operation unit 701 ⁇ / b> C and the operation unit 702 ⁇ / b> C are connected by a connection shaft 703 so as to be relatively rotatable.
  • the semi-cylindrical portions 701 ⁇ / b> B and 702 ⁇ / b> B can sandwich the tube 23 by the patient or administrator pressing the operation units 701 ⁇ / b> C and 702 ⁇ / b> C so as to approach the force of the spring 704. If the patient or the administrator separates the operation portions 701C and 702C, the semi-cylindrical portions 701B and 702B can be held on the outer peripheral surface of the tube 23 by the force of the spring 704. Thereby, the temperature sensor 320 of the detection unit 370 of the fixture 700 can directly detect the temperature of the outer peripheral surface of the tube 23 at an appropriate position of the tube 23.
  • the mounting detection sensor 390 shown in FIG. 14 is a contact sensor such as an on / off switch.
  • the attachment detection sensor 390 detects that the attachment 700 is attached to an appropriate position on the tube 23 and sends an attachment detection signal DF to the control unit 310.
  • the control unit 310 is activated, and the control unit 310 activates a function of wirelessly transmitting temperature information to the communication unit 328 of the oxygen cutoff operation unit 500.
  • the control part 310 does not start until it mounts
  • the attachment 700 provided with the detection part 370 can be attached to an appropriate place of the tube 23 that is an oxygen supply path. That is, “appropriate place” means a place preferable as a place where the temperature sensor 320 is installed when the temperature sensor 320 is used for flame detection.
  • “appropriate place” means a place preferable as a place where the temperature sensor 320 is installed when the temperature sensor 320 is used for flame detection.
  • the fixture 700 including the detection unit 370 is provided on the tube 23 at a location close to the cannula 22 if the patient is near the location where the patient exists, the patient smokes and the fire Assuming the case where oxygen in the tube 23 is ignited, it is preferable to provide it in the vicinity of a place where it is assumed that tobacco fire exists.
  • the slave unit once registered is called from the oxygen concentrator at the time of activation, thereby returning from the standby mode and entering the fire occurrence monitoring mode. Also, if the slave unit does not answer the call from the main unit case side, there is no registered number, there is no response that the coupler socket or coupler plug is connected, or there is no response that the clip is attached Generates a coupler socket / coupler plug non-connection alarm or clip non-mounting alarm, and stops the operation of the main body case 11 side. Only when all slave units respond, the response that the coupler socket or coupler plug is connected or the clip is attached is on the main body case 11 side, there is no fire, and all conditions are met. The oxygen concentrator starts to supply oxygen.
  • the oxygen concentrating device 10, 10A, 10B When supplying concentrated oxygen to the patient through the cannula 22, the oxygen concentrating device 10, 10A, 10B according to the embodiment of the present invention attaches the cannula 22 to the main body case 11, and concentrates the oxygen generated in the main body case 11, The patient is supplied to the patient through the cannula 22.
  • the oxygen concentrators 10, 10 ⁇ / b> A, and 10 ⁇ / b> B are activated when they are mounted at appropriate positions on the cannula 22, are arranged at appropriate positions on the cannula 22, and are temperature sensors that are detection units that detect the ignition of the cannula 22.
  • a coupler socket 400 (400A, coupler plug 400B, fixture 700), which is a detection unit holder 320, and a signal from the detection unit are received to determine ignition of the cannula and supply concentrated oxygen.
  • An oxygen blocking operation unit 500 for blocking is provided.
  • the coupler socket 400 (400A, coupler plug 400B, fixture 700) is activated when the cannula 22 is mounted at an appropriate position, and the oxygen blocker receives a signal from the detector of the detector holder.
  • the oxygen shut-off operation unit determines that the cannula is ignited, the oxygen shut-off operation unit shuts off the supply of concentrated oxygen.
  • the detection unit holder is a socket that detachably mounts the cannula tube to the oxygen outlet part on the main body side
  • the socket is a mounting detection sensor 390 that detects that the socket is mounted on the oxygen outlet part on the main body side
  • the control unit 310 starts to be activated. Accordingly, when the detection unit holder is mounted on the oxygen outlet side on the main body side, the activation of the control unit of the detection unit holder is started, so that the power consumption used can be reduced as much as possible.
  • the detection unit holder is an attachment 700 that is detachably attached to an appropriate position of the tube of the cannula, and the attachment 700 includes an attachment detection sensor 390 that detects that the attachment is attached to the tube, and an attachment detection sensor.
  • the control unit 310 starts to start.
  • the attachment unit which is the detection unit holder
  • the power consumption used can be reduced as much as possible. it can.
  • maintenance tool can be easily attached with respect to the tube of the existing cannula.
  • the oxygen shut-off operation unit 500 receives a signal from the detection unit by wireless communication
  • the signal from the detection unit to the oxygen shut-off operation unit can be performed by a small and inexpensive wireless communication, as compared to the signal supply by wire.
  • the detection unit is the temperature sensor 320 that detects the temperature of the cannula 22
  • the temperature sensor can detect a fire or an abnormal overheating environment only by detecting the temperature of the cannula.
  • the oxygen shut-off operation unit 500 includes notification means (603, 604) for notifying the ignition of the cannula 22, the oxygen shut-off operation unit is configured to prevent the cannula from firing and the supply of oxygen to the patient or the administrator of the oxygen concentrator. Can be notified.
  • the oxygen shut-off operation unit 500 includes an oxygen shut-off unit 330 that closes the oxygen path 333 of the pipe 24R and shuts off the supply of concentrated oxygen by pushing the pipe 24R. Accordingly, when the control unit 601 (801) detects the occurrence of a fire, the oxygen blocking unit 330 closes the oxygen path 333 of the pipe 24R and blocks the supply of concentrated oxygen. Therefore, the oxygen blocking unit 330 supplies the concentrated oxygen. Can be immediately shut off, and safety in use can be secured.
  • each embodiment of the present invention can be arbitrarily combined.
  • this invention is not limited to the said embodiment, A various modified example is employable.
  • both the alarm lamp and the alarm buzzer are arranged, but any one of them may be arranged.
  • a flame sensor may be used instead of the temperature sensor 320.
  • the flame sensor is, for example, a sensor for detecting ultraviolet rays of a flame, a sensor for detecting infrared rays, or a sensor for detecting a flame current.
  • the oxygen shutoff operation unit 500 is built in the main unit 11, but instead of or in addition to this, the already described coupler sockets 400, 400 A and another socket You may make it arrange
  • the rotation speed of the compressor and the rotation speed of the blower fan can be appropriately determined according to the size and capacity of the oxygen concentrator. A part of the matters described in the embodiments of the present invention may be omitted, and the scope of the present invention is not deviated by combining with other configurations not described above.
  • Oxygen shut-off operation unit 600, 600A, 600B ... an overheat detection unit, 603 ... an alarm lamp as an example of a notification unit, 604 ... an alarm buzzer as an example of a notification unit, 700 ... an attachment (detection unit holder) Example ,

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Abstract

L'objet de la présente invention est de réaliser un dispositif de concentration d'oxygène permettant de détecter un incendie de manière fiable et de garantir une sécurité en utilisation, dans l'éventualité où, lorsqu'un patient utilise une canule nasale ou un autre équipement de respiration d'oxygène pour inhaler de l'oxygène, la canule ou un tube s'est enflammé consécutivement à un incendie accidentel, ou autre. La solution selon l'invention porte sur un dispositif de concentration d'oxygène (10) comprenant : une douille de dispositif d'accouplement (400) qui est par exemple agencée à une position appropriée dans une canule (22) et qui constitue une unité de détection contenant un outil comportant un capteur de température (320) comme unité de détection qui détecte que la canule (22) s'est enflammée ; et une unité d'isolation d'oxygène (500) qui, par réception d'un signal provenant du capteur de température (320) comme unité de détection, détermine que la canule (22) s'est enflammée et coupe l'alimentation en oxygène concentré.
PCT/JP2012/007684 2012-11-29 2012-11-29 Dispositif de concentration d'oxygène WO2014083593A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014549648A JPWO2014083593A1 (ja) 2012-11-29 2012-11-29 酸素濃縮装置
PCT/JP2012/007684 WO2014083593A1 (fr) 2012-11-29 2012-11-29 Dispositif de concentration d'oxygène

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/007684 WO2014083593A1 (fr) 2012-11-29 2012-11-29 Dispositif de concentration d'oxygène

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