WO2003004938A1 - Humidificateur et unite d'alimentation en liquide - Google Patents

Humidificateur et unite d'alimentation en liquide Download PDF

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Publication number
WO2003004938A1
WO2003004938A1 PCT/JP2001/010155 JP0110155W WO03004938A1 WO 2003004938 A1 WO2003004938 A1 WO 2003004938A1 JP 0110155 W JP0110155 W JP 0110155W WO 03004938 A1 WO03004938 A1 WO 03004938A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
chamber
contact
humidifier
liquid
Prior art date
Application number
PCT/JP2001/010155
Other languages
English (en)
Japanese (ja)
Inventor
Toshiharu Katahira
Original Assignee
Pacific Medico Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pacific Medico Co., Ltd. filed Critical Pacific Medico Co., Ltd.
Publication of WO2003004938A1 publication Critical patent/WO2003004938A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/025—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using electrical heating means

Definitions

  • the present invention relates to a humidifier that mainly humidifies intake air supplied by a ventilator, and more particularly to a humidifier and a liquid supply unit that can adjust the amount of water supplied into a chamber.
  • the ventilator 1 and the humidifier 2 are connected by an intake pipe 4a, and the humidifier 2 and the water trap 3 for storing dewed water are connected to the intake pipe 4a.
  • an inspiratory pipe 4c derived from the water trap 3 is guided to the patient's mouth to form an inspiratory path.
  • an expiratory path omitted from the drawing in which the patient's mouth is guided to the ventilator 1 Are separately formed.
  • the intake air supplied by the respirator 1 is humidified by a humidifier 2 introduced through an intake pipe 4a, and the humidified intake air guided from the humidifier 2 is supplied by an intake pipe 4b and a water trap. 3. Guided to the patient's mouth or airway via the inspiratory tube 4c.
  • the humidifier 2 has a chamber 2a provided with an intake inlet 2b and an intake outlet 2c protruding from an upper surface, and a predetermined maximum water volume in the chamber 2a. Is heated by the heating unit 2d to humidify the intake air that is introduced from the intake inlet 2b and passes over the surface of the stored water, and the humidified intake air is absorbed. It is derived from outlet 2c.
  • the tip of the tube 5 of the supply bag 5a storing water is connected to the water supply hole 2e on the upper surface of the chamber 1a, and the water flows into the tube 5b in the open state and the water flow in the closed state. Stopper 5c is provided in the middle of the path of tube 5b.
  • the amount of water stored in the chamber 2a is constantly or intermittently monitored by humans.
  • the stopper 5c is manually opened to supply water, and after the reduced amount of water is supplied, the stopper 15c is closed manually again to stop water supply. ing.
  • the amount of water stored in the chamber 2a is constantly or intermittently monitored by a human. Because it is a configuration that replenishes water, the work of rehydrating requires much labor and is inefficient. In addition, it is difficult to maintain the amount of water stored in the chamber 2a at an appropriate level at all times.For example, the water temperature in the chamber 2a changes due to a sudden increase in the amount of water stored during hydration. There was a problem that the humidification of the intake varied.
  • the present invention proposes to solve the above-mentioned problems, and can efficiently supply water into the chamber without requiring labor, and always maintains an appropriate amount of water stored in the humidifier chamber. It is another object of the present invention to provide a humidifier having a high degree of humidification stability that can make the humidification degree of gas discharged from a humidifier such as intake air almost constant.
  • Another object of the present invention is to automatically supply and stop liquid or water in response to a change in the liquid level or water level of the container, and to efficiently enter the container without requiring labor.
  • An object of the present invention is to provide a humidifier and a liquid supply unit that can supply a liquid and maintain an appropriate amount of liquid or water in a container. Disclosure of the invention
  • a humidifier includes a chamber provided with an intake inlet and an intake outlet for storing moisture, a heating unit for heating the chamber, and a chamber for supplying moisture to the chamber by opening and closing a moisture supply port. And a water supply passage for supplying water to the inside of the chamber in accordance with the rise of the water level in the chamber until the water supply port comes into contact with the water supply port.
  • a float that moves down the cylinder body in response to a drop in water level to release the relevant contact, and opens the water supply port by opening the relevant contact.
  • the humidifier of the present invention is used for opening and closing the moisture supply port in a chamber for storing moisture.
  • a water supply passage for supplying water is provided in the chamber, and the water supply passage rises in the cylinder according to the rise in the water level in the chamber until it comes into contact with the water supply port, and the water supply passage is closed by the contact.
  • a port for moving down the cylinder in accordance with a drop in the water level in the chamber to release the relevant contact, and opening the water supply port by releasing the relevant contact It is characterized by the following.
  • the humidifier of the present invention is characterized in that the water supply port of the water supply path is an orifice hole.
  • the water supply port of the water supply path is an orifice hole.
  • the liquid supply unit of the present invention opens a liquid supply port for supplying a liquid into the cylinder, and floats in the cylinder so as to be movable up and down in accordance with a change in the liquid level of the container to which the liquid is supplied.
  • the supply of liquid is stopped by the port rising up the cylinder and coming into contact with the liquid supply port, and the float is lowered down the cylinder to release the connection.
  • the liquid is supplied by the following method.
  • the liquid is, for example, water, and the liquid supply port may be an orifice hole as described above, or the liquid supply path may be a tapered tube tapering toward the liquid supply port at the tip.
  • the humidifier of the present invention it is possible to efficiently supply water into the chamber without requiring labor, and it is possible to always maintain an appropriate amount of water stored in the chamber of the humidifier.
  • the degree of humidification of the gas discharged from the humidifier such as the intake air can be made substantially constant, and the effect of increasing or improving the stability of the humidification can be obtained.
  • the humidifier or the liquid supply unit of the present invention can automatically supply and stop the liquid or water in response to a change in the liquid level or the water level of the container. This has the effect that the liquid can be supplied to the container in a targeted manner, and the amount of liquid or water stored in the container can be maintained at an appropriate amount.
  • FIG. 1 is a schematic diagram showing an intake path of an artificial respirator using a humidifier according to an embodiment of the present invention
  • FIG. 2 is a partially longitudinal front view showing a chamber portion in the embodiment of the humidifier of the present invention.
  • FIG. 3 is a schematic diagram showing an intake path of a conventional artificial respiration apparatus using a humidifier.
  • FIG. 1 is a block diagram showing an intake path of an artificial respiration apparatus using a humidifier of the present embodiment
  • FIG. 2 is a partially longitudinal front view showing a chamber part in the embodiment of the humidifier.
  • the artificial respirator in which the humidifier 20 of the present embodiment is installed is, as shown in FIG. 1, connected to the artificial respirator 10 and the humidifier 20 via an intake pipe 40a, 0 and the water trap 30 are connected by an intake pipe 40b, and the intake pipe 40c derived from the water trap 30 is guided to the patient's mouth to form an intake path, An expiratory path, which is omitted in the figure that is guided from the mouth to the ventilator 10, is separately formed.
  • the present invention is also applicable to an artificial respiration apparatus in which an expiration path is not formed.
  • the intake air supplied by the ventilator 10 is humidified by the humidifier 20 introduced through the intake pipe 40a, and the humidified intake air derived from the humidifier 20 is the intake pipe 40b.
  • the water that is guided to the patient's mouth or airway via the inhalation tube 40c via the inhalation tube 40c and condensed in the inhalation tube 40b, 40c It is stored at
  • the humidifier 20 is provided with a chamber 21 that is a container for storing moisture and a heating unit 26.
  • the chamber 21 has a substantially horizontal bottom surface 21a, a substantially circular peripheral side surface 21b, and a substantially spherical upper surface 21c.
  • a substantially cylindrical intake port 22 connected to the intake pipe 40a is provided upward, and the front face of the upper surface 21c is provided.
  • a substantially cylindrical intake outlet 23 is provided upward on the viewing side, and portions other than the intake inlet 22 and the intake outlet 23 are sealed.
  • the humidifier 20 performs humidification by, for example, placing the bottom surface 21 a of the chamber 21 storing moisture on the upper surface of the heating unit 26 and heating it to a required temperature in the heating unit 26. .
  • the humidifier 20 is provided with a water supply unit 24.
  • the water supply unit 24 has a short L-shaped connecting pipe 241, and one end of a vertical portion 241a of the connecting pipe 241 is fitted to the outside of the intake outlet 23.
  • the other end of the horizontal part 24 1 b of the connecting pipe 24 1 is connected to the suction pipe 40 b.
  • a through hole 2 41 c is formed at the upper surface of the connecting pipe 24 1 at a position intersecting with the center line of the vertical portion 2 41 a, and a water supply pipe 25 described later is provided in the through hole 24 1 c.
  • the fitting part 25 3 formed substantially at the top of the fitting is fitted, and the water supply pipe 25 is attached to the connecting pipe 24 1.
  • the water supply pipe 25 has a substantially rod shape, and has a water supply path 251, which extends in the longitudinal direction from the upper end to the substantially middle part.
  • the lower part of the water supply path 251 is tapered, Micropores 252 having a diameter of about 0.5 mm are provided.
  • a fitting part 25 3 having substantially the same shape and diameter as the inner surface of the through hole 24 1 c is formed substantially at the upper part of the water supply pipe 25, and a substantially cylindrical pipe is formed at the lower part thereof.
  • a body 255 is formed, and a ring 255 having an inner diameter smaller than the inner diameter of the cylindrical body is fitted to the lower end of the cylindrical body 25 4.
  • the outer diameter of the part between 5 and 4 is formed smaller than the inner diameter of the vertical part 2 41 a of the connecting pipe 24 1 ⁇ the inner diameter of the intake outlet 23, and the connecting pipe 24 1 is a water supply pipe 25
  • the intake air can be conducted in a state in which is attached.
  • a substantially cylindrical float 2556 having a step formed in the upper portion is provided in the cylindrical body 254.
  • the float 2556 has substantially the same shape as the internal shape of the cylindrical body 254.
  • the length of the base member 256 a is slightly smaller than the inner diameter of the cylindrical body 254 from the middle part to the lower part.
  • the float 2556 can move up and down inside the cylindrical body 2554, and is configured to float on water by forming the inside of the hollow body or using a material having a specific gravity lower than that of water. .
  • the base body 256 a of the float 256 has an outer diameter larger than the inner diameter of the ring 255 fitted to the lower end of the cylindrical body 250, the lower end thereof corresponds to the ring 255.
  • a projecting portion 256c protrudes upward from the periphery of the upper surface 256b of the float 256 along the periphery.
  • the attached water supply unit 24 floats 256 to the uppermost position that can be moved within the cylinder 254. Due to the buoyancy of the stored water, it moves upward, and the upper surface 256 b of the port comes into contact with the lower end of the pores 252 and closes the pores 256.
  • the upper end of the water supply pipe 25 of the water supply unit 24 is connected to one end of a tube 50b provided with a stopper 50c for controlling the flow and stoppage of the water flow by opening and closing, for example.
  • the structure is such that moisture is always supplied into the moisture supply channel 251 via Ob. It is also possible to adopt a configuration in which moisture is always supplied from the replenishing bag 50a into the moisture supply channel 2 51 without providing the stopper 50c.
  • the water supplied into the water supply passage 25 1 is basically configured not to flow out due to the blockage due to the contact of the float upper surface 2 56 b to the pore 2 52, the pore 2 5
  • the water supplied into the water supply passage 25 1 may seep out from the fine hole 25 2 into the upper surface 2 56 b of the float.
  • the outflowing water forms a water pool in a concave portion formed by the float upper surface 256 b and the projecting portion 256 c, and at the time of the contact due to the blockage and the surface tension of the water pool. It is complete to stop the outflow of water at the time.
  • the heated water in the chamber 21 is heated to the required temperature by the heating section 26 and the inhalation pipe 40 is sent from the ventilator 10.
  • the intake air is sent into the space above the water level of the stored water in the chamber 21 through the a and the intake inlet 22.
  • the intake air is humidified by being provided with moisture in the chamber 21, and the humidified intake air is led out through the intake outlet 23 and the connecting pipe 24 1.
  • the derivation The humidified inspired air is sent to the patient via the intake pipe 40b, the water trap 30 and the intake pipe 40c.
  • the stored water in the chamber 21 decreases, and the stored water decreases below a predetermined reference water amount, and the water level drops below the reference water level at the time of the reference water amount. Then, the float 25 6 moves slightly or slightly downward in the cylindrical body 25 4, and moves away from the lower end of the pore 25 2 with which the float upper surface 25 6 b is in contact. Is released.
  • the water supplied into the water supply channel 25 1 flows out from the lower end of the pore 25 2, and the concave portion formed by the float upper surface 25 6 b and the projecting portion 2 56 c
  • the water that falls into the water pool and overflows from the water pool and exceeds the upper end of the protruding portion 25 6 c passes through the gap between the cylindrical body 25 4 and the float 25 6 and is stored in the chamber 21. Replenished with water.
  • the water level of the stored water in the chamber 21 rises in response to the hydration of the stored water, and the float 2556 moves upward in the cylindrical body 2454 as the water level rises.
  • the float upper surface 256b contacts the lower end of the pores 252 again, and the upward movement of the float 256 stops at the contact position. Due to the contact, the pores 252 are closed again by the float upper surface 256b, and the water supply by the outflow from the pores 252 is stopped. Also in this case, it is necessary to completely stop the outflow of water due to the blockage and the surface tension of the water pool in the recess.
  • the amount of water stored in the chamber 21 is in the range between the predetermined maximum water amount and the reference water amount or a water amount slightly smaller than the reference water amount, or when the maximum water amount is the same as the reference water amount, An appropriate amount such as the standard water amount, which is in the range between the water amount and the water amount slightly smaller than the standard water amount, can always be maintained. Further, since the reduced amount of the stored water is replenished from time to time without abrupt water replenishment into the chamber 21, the temperature of the stored water is maintained almost constant and stabilized. Therefore, it is possible to humidify the intake air with almost constant stability.
  • the humidifier, the liquid supply unit or the moisture supply unit of the present invention is preferably installed in an intake path of an artificial respiration apparatus and used to humidify intake air, but air is supplied by a normal humidifier. It is also possible to use when humidifying.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Humidification (AREA)

Abstract

L'invention concerne un humidificateur conçu pour maintenir, sans effort particulier et en permanence, la quantité d'eau stockée dans la chambre dudit humidificateur à un niveau approprié et pour maintenir le degré d'humidité en vue de l'inhalation à un niveau généralement constant. Lequel humidificateur peut être installé, par exemple, dans le circuit d'inhalation d'un appareil de respiration artificielle. Cet humidificateur comprend une chambre présentant une admission d'air inhalé et une évacuation d'air inhalé et conçue pour contenir l'eau; une portion de chauffage permettant de chauffer la chambre; une alimentation en eau permettant d'amener l'eau dans la chambre par ouverture d'un port d'alimentation en eau; et un flotteur s'élevant dans un corps tubulaire en fonction de l'élévation du niveau d'eau dans la chambre jusqu'au contact avec le port d'alimentation en eau de manière à fermer ce dernier par l'intermédiaire du contact; et baissant dans le corps tubulaire en fonction de l'abaissement du niveau d'eau dans la chambre de manière à relâcher le contact et à ouvrir le port d'alimentation en eau.
PCT/JP2001/010155 2001-07-02 2001-11-21 Humidificateur et unite d'alimentation en liquide WO2003004938A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-200866 2001-07-02
JP2001200866A JP2003010333A (ja) 2001-07-02 2001-07-02 加湿器及び液体供給ユニット

Publications (1)

Publication Number Publication Date
WO2003004938A1 true WO2003004938A1 (fr) 2003-01-16

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PCT/JP2001/010155 WO2003004938A1 (fr) 2001-07-02 2001-11-21 Humidificateur et unite d'alimentation en liquide

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JP (1) JP2003010333A (fr)
WO (1) WO2003004938A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100430104C (zh) * 2005-11-18 2008-11-05 北京北辰亚奥科技有限公司 一种分离出口湿化瓶
CN108939247A (zh) * 2018-08-20 2018-12-07 北京仰生恒泰科技有限责任公司 一种安全的氧气湿化装置
CN109011092A (zh) * 2018-08-20 2018-12-18 北京仰生恒泰科技有限责任公司 一种液面恒定的氧气湿化装置
RU2677056C2 (ru) * 2013-06-28 2019-01-15 Конинклейке Филипс Н.В. Узел увлажнителя и способ обеспечения влагой подаваемого газа в системе поддержания давления

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7722016B2 (en) * 2006-08-31 2010-05-25 Medex Cardio-Pulmonary, Inc. Float for humidification chamber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131925U (fr) * 1988-03-01 1989-09-07
JPH02134428U (fr) * 1989-04-13 1990-11-08
EP0589429A1 (fr) * 1992-09-23 1994-03-30 FISHER & PAYKEL LIMITED Humidificateur avec deux clapets à flotteur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131925U (fr) * 1988-03-01 1989-09-07
JPH02134428U (fr) * 1989-04-13 1990-11-08
EP0589429A1 (fr) * 1992-09-23 1994-03-30 FISHER & PAYKEL LIMITED Humidificateur avec deux clapets à flotteur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100430104C (zh) * 2005-11-18 2008-11-05 北京北辰亚奥科技有限公司 一种分离出口湿化瓶
RU2677056C2 (ru) * 2013-06-28 2019-01-15 Конинклейке Филипс Н.В. Узел увлажнителя и способ обеспечения влагой подаваемого газа в системе поддержания давления
US10322257B2 (en) 2013-06-28 2019-06-18 Koninklijke Philips N.V. Humidifier assembly and method of providing moisture to supplied gas in a pressure support system
CN108939247A (zh) * 2018-08-20 2018-12-07 北京仰生恒泰科技有限责任公司 一种安全的氧气湿化装置
CN109011092A (zh) * 2018-08-20 2018-12-18 北京仰生恒泰科技有限责任公司 一种液面恒定的氧气湿化装置
CN108939247B (zh) * 2018-08-20 2023-09-19 浙江百获健康科技有限公司 一种安全的氧气湿化装置

Also Published As

Publication number Publication date
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