WO2014129043A1 - 呼吸補助装置 - Google Patents
呼吸補助装置 Download PDFInfo
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- WO2014129043A1 WO2014129043A1 PCT/JP2013/082331 JP2013082331W WO2014129043A1 WO 2014129043 A1 WO2014129043 A1 WO 2014129043A1 JP 2013082331 W JP2013082331 W JP 2013082331W WO 2014129043 A1 WO2014129043 A1 WO 2014129043A1
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- WIPO (PCT)
- Prior art keywords
- blower
- user
- assistance device
- impeller
- mouth
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- XDTMQSROBMDMFD-UHFFFAOYSA-N C1CCCCC1 Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0666—Nasal cannulas or tubing
-
- 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
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
-
- 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
- A61M16/0057—Pumps therefor
- A61M16/0066—Blowers or centrifugal pumps
- A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
-
- 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
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
- A61M16/203—Proportional
- A61M16/205—Proportional used for exhalation control
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
-
- 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
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0272—Electro-active or magneto-active materials
- A61M2205/0294—Piezoelectric materials
-
- 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
- A61M2205/15—Detection of leaks
-
- 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
- A61M2205/42—Reducing noise
-
- 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
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
- A61M2205/52—General characteristics of the apparatus with microprocessors or computers with memories providing a history of measured variating parameters of apparatus or patient
-
- 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
- A61M2206/00—Characteristics of a physical parameter; associated device therefor
- A61M2206/10—Flow characteristics
- A61M2206/11—Laminar flow
-
- 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
- A61M2209/088—Supports for equipment on the body
Definitions
- the present invention relates to a respiratory assistance device.
- the present invention has been made in view of the above problems, and an object thereof is to provide a respiratory assistance device that reduces the burden on the user.
- the present invention includes a prong that is an airway attached to a user's nose, and a blower that is connected to the prong and sends out gas to the user's nasal cavity through the prong.
- the respiratory assistance device is characterized in that it is placed on a user's mouth to contact the mouth and keep the mouth closed.
- the distance from the center axis of the user's body to the center of gravity of the blower can be shortened compared to the conventional case. Therefore, when the user who lies down turns and changes the direction of the face, the moment by the blower can be reduced. Further, since the blower is placed on the mouth, it is not necessary to press the blower against the pillow with the face when turning over or changing the direction of the face. As a result, the burden on the user can be reduced.
- the present invention is also characterized in that in the respiratory assistance device of the above means, the blower keeps the mouth of the user closed.
- the blower flows through the intake port that takes in the gas, a flow path that is provided to circulate and flows the gas taken in from the intake port, and the flow path
- a housing having a discharge port for sending the gas toward the prongs, an impeller disposed in the housing such that the front surface of the air intake faces the suction port, and a rear surface of the impeller,
- an impeller disposed in the housing such that the front surface of the air intake faces the suction port, and a rear surface of the impeller
- the flow of air sucked from the intake port, the flow of air sent out from the discharge port, Can be separated.
- it can prevent that the flow of the air suck
- noise is generated when air flows through a slit connecting the space where the impeller is disposed and the flow path. This noise can cancel other noises that occur with the rotation of the impeller. Thereby, the burden on the user due to noise can be reduced.
- the respiratory assistance device of the above means further includes an exhalation valve provided so as to cover a vent hole formed in a path from the blower to the user's nose, and the exhalation valve is configured to apply a voltage.
- the piezoelectric element has a piezo element that is displaced according to the amount, and the piezo element itself is displaced so as to be separated from or in close contact with the surface constituting the path. It is characterized by opening and closing.
- the exhalation valve has a piezo element, and its opening amount can be finely adjusted, so that it is possible to prevent the exhalation flow discharged from the exhalation valve from changing rapidly. That is, it is possible to prevent the air pressure in the route from the blower to the user's nose from changing suddenly, and to prevent the burden on the user from increasing.
- the exhalation valve can be closed so that the inside of the path becomes airtight during inspiration, the amount of gas leaking from the exhalation valve can be reduced.
- the exhalation-valve has a piezo element, the responsiveness is fast and the burden on the user is small.
- an electromagnetic valve is employed as an exhalation valve, the valve opens and closes in a time of about 8 msec to 10 msec.
- the valve opens and closes in a time of about 8 msec to 10 msec.
- about 100 ⁇ sec it can be opened and closed in a short time.
- the exhalation valve has a piezo element, it has a longer durability period than the case where an electromagnetic valve is adopted as the exhalation valve, and is hard to break.
- the exhalation valve has a piezo element, the respiratory assistance device can be made smaller and lighter than when an electromagnetic valve is employed as the exhalation valve. For this reason, the gravity of the respiratory assistance device applied to the user's face can be reduced, and the burden on the user can be reduced.
- the present invention is also characterized in that in the respiratory assistance device of the above means, the exhalation valve is displaced inside the path.
- the exhalation valve at the time of opening and closing can be prevented from interfering with some article. As a result, malfunction of the exhalation valve can be prevented.
- FIG. 1 is a cross-sectional view of the respiratory assistance device 1.
- FIG. 2 is a side view of the blower 10.
- FIG. 3 is a cross-sectional view of the blower 10.
- FIG. 4 is a front view of the impeller 23.
- FIG. 5 is a cross-sectional view of the flow path 32.
- FIG. 6 is a graph showing the relationship between the width w of the slit d that circulates along the inner peripheral surface of the housing 21 and the noise cancellation level.
- the horizontal axis represents the width w of the slit d
- the vertical axis represents the noise cancellation level. Respectively.
- FIG. 1 is a cross-sectional view of the respiratory assistance device 1.
- FIG. 2 is a side view of the blower 10.
- FIG. 3 is a cross-sectional view of the blower 10.
- FIG. 4 is a front view of the impeller 23.
- FIG. 5 is a cross-sectional view of the flow path 32.
- FIG. 6
- FIG. 7 is a block diagram showing a hardware configuration of the control unit 16.
- FIG. 8 is a schematic diagram showing a functional configuration of the control unit 16.
- 9A and 9B are cross-sectional views of the chamber 11 part, in which FIG. 9A shows when the exhalation valve 15 is opened, and FIG. 9B shows when the exhalation valve 15 is closed.
- FIG. 10 is a use state diagram of the respiratory assistance device 1.
- FIGS. 11A and 11B are diagrams showing the use state of the respiratory assistance device for explaining the moment.
- FIG. 11A shows the case of the respiratory assistance device 1
- FIG. 11B shows the case of the conventional respiratory assistance device 100.
- a part of the configuration, hatching showing a cross section, and the like are omitted as appropriate, and the drawings are simplified. And in each figure, the magnitude
- the blower 10 shown in FIGS. 2 to 5 is connected to a pair of prongs 12 through a chamber 11.
- the blower 10 sends air to a user's nasal cavity (airway) through a pair of prongs 12.
- the air blower 10 produces a positive pressure in the airway.
- the blower 10 includes a housing 21, a rectifying member 22, an impeller 23, a motor 24, and a partition member 25.
- the casing 21 is a main body of the blower 10 molded from resin.
- the outer shape is a substantially truncated cone upper portion 21a, the outer shape is a substantially cylindrical lower portion 21b, and a discharge pipe extending laterally from the lower portion 21b. 21c.
- the upper part 21a is smoothly curved upward. And the upper part 21a has the circular inlet 26 at the upper end.
- a bearing 21d that functions as a bearing that supports the rotating shaft 28 of the impeller 23 is embedded in the lower portion 21b.
- the discharge pipe 21c has a discharge port 17 at the tip.
- Such a casing 21 takes in air from the intake port 26 and sends out air from the discharge port 27. In addition, it is not limited to air, Other gases, such as air which mixed the chemical
- the rectifying member 22 is similar to a gas turbine type jet engine and has a shape with a protruding tip.
- the rectifying member 22 is provided at the center of the intake port 26 so as to protrude outside the intake port 26.
- the rectifying member 22 is connected and fixed to the edge of the air inlet 26 by, for example, three connecting members 22a.
- the rectifying member 22 has a bearing 22 b embedded therein, and also serves as a bearing that supports the rotating shaft 28 of the impeller 23.
- the impeller 23 shown in FIG. 3 and FIG. 4 is arranged in the housing 21 so that its front face faces the air inlet 26. That is, the impeller 23 is located closer to the intake port 26 in the direction of the rotation shaft 28 than the flow path 32 described later.
- the impeller 23 includes a plurality of blades 29 disposed around the rotation shaft 28 and a covering member 30 that covers the back side (the lower side in FIG. 3) of the plurality of blades 29.
- the impeller 23 is open on the inlet 26 side of the plurality of blades 29. That is, a member such as the covering member 30 is not provided on the intake port 26 side of the plurality of blades 29.
- the plurality of blades 29 are formed integrally with the covering member 30.
- the plurality of blades 29 face the inner peripheral surface of the casing 21. And if the several blade
- the covering member 30 has an umbrella shape that protrudes toward the intake port 26. That is, the covering member 30 has a conical surface that protrudes toward the intake port 26.
- the partition member 25 is disposed on the back side of the impeller 23 so as to have a slit d having a width w of 1.0 mm or less that circulates along the inner peripheral surface of the casing 21, so that the impeller 23 is disposed.
- the space 31 and the flow path 32 that circulates along the slit d and leads to the discharge port 27 are partitioned.
- the slit d is preferably 0.6 mm or less, and from the viewpoint of further reducing energy loss, the slit d is more preferably 0.6 mm. As shown in FIG.
- the slit d preferably has a width w of 1.5% or less of the inner peripheral diameter D of the housing 21.
- the air that has moved from the slit d toward the flow path 32 moves along the wall surface, bottom surface, and ceiling surface of the flow path 32. Further, the air that has moved from the slit d toward the flow path 32 is subjected to a force that rotates in the rotation direction (clockwise) of the impeller 23 due to the rotation of the impeller 23. For this reason, as shown in FIG. 5, the air that has moved from the slit d toward the flow path 32 rotates clockwise in the flow path 32. Thereafter, the air rotated clockwise in the flow path 32 is sent out from the discharge port 27 into the chamber 11 through the discharge pipe 21c (see FIG. 1).
- the barometer 13 is disposed in the chamber 11.
- the barometer 13 measures the atmospheric pressure in the chamber 11 and outputs the measurement result to the control unit 16 as a signal.
- the flow meter 14 is disposed in the discharge pipe 21 c of the blower 10. The flow meter 14 measures the flow rate of air sent out from the blower 10 and outputs the measurement result as a signal to the control unit 16.
- the exhalation valve 15 has a shape that warps toward the inside of the exhalation path when the voltage is not applied to the piezo element 33, The formed vent 11b is opened.
- the exhalation valve 15 has a shape extending when a voltage is applied to the piezo element 33, and closes the vent hole 11b formed in the chamber 11.
- the exhalation valve 15 is appropriately fixed with, for example, a screw (not shown).
- control unit 16 includes a CPU 36, a first storage medium 37, a second storage medium 38, a bus 39, and the like.
- the CPU 36 is a so-called central processing unit, and implements various functions of the control unit 16 by executing various programs.
- the first storage medium 37 is a so-called RAM (Random Access Memory) and is used as a work area for the CPU 36.
- the second storage medium 38 is a so-called ROM (Read Only Memory) and stores a program executed by the CPU 36.
- the bus 39 is a wiring that connects the CPU 36, the first storage medium 37, the second storage medium 38, and the like integrally to perform communication.
- the control unit 16 controls the exhalation valve 15 based on the sensing data. That is, the control unit 16 operates the exhalation valve 15 to open the vent hole 11b of the chamber 11 (see FIG. 9A). Exhaled air is discharged from the vent hole 11b.
- the case 17 houses the blower 10, the chamber 11, the control unit 16, and the like.
- the case 17 is formed with vent holes 17 a and 17 b so as to correspond to the vent holes 11 a and 11 b of the chamber 11.
- the prongs 12 are detachably attached to the pair of vent holes 17a.
- the vent hole 17b functions as an exhalation path.
- the case 17 is formed with an inlet (not shown) for introducing air into the inlet 26 of the blower 10.
- the introduction port is preferably filled with a porous member (such as an open-cell sponge) that prevents the introduction of dust. This porous member also has a sound absorbing effect.
- the blower 10 presses the user's mouth, and can support the mouth being kept closed.
- the mouth desired during nasal breathing is closed, and the burden on the user is reduced.
- the contact with the mouth may be direct or indirect.
- the air blower 10 employs a two-stage structure including the space 31 in which the impeller 23 is disposed and the flow path 32 connected to the discharge port 27, the flow of air sucked from the intake port 26 and the discharge port 27.
- the flow of air to be sent out can be separated. Thereby, it is possible to prevent the air sucked from the intake port 26 and the flow of air sent from the discharge port 27 from colliding with each other. That is, the generation of noise can be prevented by the air flows colliding with each other.
- the straightening member 22 supports one end of the rotating shaft 28 of the impeller 23, the vibration of the impeller 23 can be prevented. As a result, generation of noise can be prevented. Further, since the rectifying member 22 also has a function of supporting one end of the rotating shaft 28 of the impeller 23, the number of parts can be reduced, and the weight and size can be reduced. As a result, it can be easily carried on overnight trips or business trips.
- the exhalation-valve 15 has the piezo element 33, compared with the case where an electromagnetic valve is employ
- the exhalation valve 15 includes the piezo element 33, the respiratory assistance device 1 can be reduced in size and weight as compared with the case where an electromagnetic valve is employed as the exhalation valve 15. For this reason, the gravity of the breathing assistance device 1 applied to the face of the user or the like can be reduced, and the burden on the user can be reduced.
- the blower 110 is a power source necessary for a respiratory assistance device used by a patient with respiratory disability, like the blower 10 according to each of the above embodiments, and blows air to create a positive pressure in the airway.
- the air blower 110 is arrange
- the blower 110 is employed in a continuous automatic positive airway pressure unit (trade name: Jasmine) sold by Metran Co., Ltd. (Kawaguchi City, Saitama Prefecture).
- Experiment 2 will be described in which the influence of noise on the gap between the blades and the inner peripheral surface of the casing is examined.
- the noise level [dB] between the blower 110 serving as a master and the fan 110 attached with a rectifying member and the gap between the blades and the inner peripheral surface of the casing being narrowed to 0.8 [mm] Compared.
- the noise level was reduced by about 3.8 [dB] to 4.2 [dB] by attaching the rectifying member and narrowing the gap between the blade and the inner peripheral surface of the casing to 0.8 [mm].
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Abstract
Description
10 送風機
11 チャンバー(経路)
12 プロング
15 呼気弁
23 羽根車
25 仕切り部材
26 吸気口
27 吐出口
31 空間
32 流路
22 ピエゾ素子
200 マイクロポンプ(送風機)
d スリット
Claims (7)
- 利用者の鼻に装着される気道であるプロングと、
前記プロングに接続され該プロングを介して前記利用者の鼻腔に気体を送り出す送風機と、を備え、
前記送風機は、前記利用者の口の上に置かれることを特徴とする、
呼吸補助装置。 - 利用者の口及び鼻を覆うマスクと、
前記マスクの内側に設けられ、前記利用者の鼻腔に気体を送り出す送風機と、を備え、
前記送風機は、前記利用者の口の上に置かれることを特徴とする、
呼吸補助装置。 - 前記送風機は、前記利用者の口に接触することを特徴とする、
請求の範囲1又は2に記載の呼吸補助装置。 - 前記送風機は、前記利用者の口を閉じたままにするものであることを特徴とする、
請求の範囲3に記載の呼吸補助装置。 - 前記送風機は、
前記気体を取り込む吸気口、周回するように設けられ前記吸気口から取り込んだ前記気体を流す流路、及び前記流路を流れた前記気体を前記プロングに向けて送り出す吐出口、を有する筐体と、
前記吸気口に自身の正面が面するように前記筐体内に配置される羽根車と、
前記羽根車の背面側に、前記筐体の内周面に沿って周回するスリットを有するように配置されることで、前記羽根車が配置される空間、及び、前記スリットに沿って周回する前記流路に仕切る仕切り部材と、を備えることを特徴とする、
請求の範囲1~4のいずれかに記載の呼吸補助装置。 - 前記送風機から前記利用者の鼻までの経路に形成された通気孔を覆うように設けられた呼気弁を備え、
前記呼気弁は、電圧の印加量に応じて変位するピエゾ素子を有してなり、該ピエゾ素子が前記経路を構成する面に対して離隔し又は近接して当接するように変位することで、該ピエゾ素子自体が前記通気孔を開閉することを特徴とする、
請求の範囲1~5のいずれかに記載の呼吸補助装置。 - 前記呼気弁は、経路の内側で変位することを特徴とする、
請求の範囲6に記載の呼吸補助装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/238,809 US9623203B2 (en) | 2013-02-21 | 2013-12-02 | Respiratory assistance device with blower placed above the mouth of a user |
EP13875619.2A EP2957313B1 (en) | 2013-02-21 | 2013-12-02 | Respiratory assistance device |
JP2015501279A JPWO2014129043A1 (ja) | 2013-02-21 | 2013-12-02 | 呼吸補助装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2013-031714 | 2013-02-21 | ||
JP2013031714A JP5358773B1 (ja) | 2013-02-21 | 2013-02-21 | 呼吸補助装置 |
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WO2014129043A1 true WO2014129043A1 (ja) | 2014-08-28 |
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PCT/JP2013/082331 WO2014129043A1 (ja) | 2013-02-21 | 2013-12-02 | 呼吸補助装置 |
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US (1) | US9623203B2 (ja) |
EP (1) | EP2957313B1 (ja) |
JP (2) | JP5358773B1 (ja) |
WO (1) | WO2014129043A1 (ja) |
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---|---|---|---|---|
JP6455653B2 (ja) * | 2013-12-26 | 2019-01-23 | 株式会社メトラン | フィルター構造 |
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JP2014223099A (ja) | 2014-12-04 |
EP2957313B1 (en) | 2017-09-27 |
EP2957313A4 (en) | 2015-12-30 |
JP5358773B1 (ja) | 2013-12-04 |
US20150217073A1 (en) | 2015-08-06 |
US9623203B2 (en) | 2017-04-18 |
JPWO2014129043A1 (ja) | 2017-02-02 |
EP2957313A1 (en) | 2015-12-23 |
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