WO2017065047A1 - Humidificateur et appareil d'assistance respiratoire - Google Patents

Humidificateur et appareil d'assistance respiratoire Download PDF

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Publication number
WO2017065047A1
WO2017065047A1 PCT/JP2016/079393 JP2016079393W WO2017065047A1 WO 2017065047 A1 WO2017065047 A1 WO 2017065047A1 JP 2016079393 W JP2016079393 W JP 2016079393W WO 2017065047 A1 WO2017065047 A1 WO 2017065047A1
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WO
WIPO (PCT)
Prior art keywords
humidifying member
intake pipe
humidifier according
humidifying
container
Prior art date
Application number
PCT/JP2016/079393
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English (en)
Japanese (ja)
Inventor
新田　一福
Original Assignee
株式会社メトラン
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Publication date
Application filed by 株式会社メトラン filed Critical 株式会社メトラン
Priority to JP2017545157A priority Critical patent/JPWO2017065047A1/ja
Publication of WO2017065047A1 publication Critical patent/WO2017065047A1/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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • 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
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • 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
    • F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements

Definitions

  • the present invention relates to a humidifier and a respiratory assistance device.
  • a respiratory assistance device such as a ventilator is used for a patient with a disorder of breathing such as sleep apnea syndrome (SAS).
  • SAS sleep apnea syndrome
  • the respiratory assistance device sends a gas such as compressed air supplied from a blower or the like to a patient's respiratory tract through a suction tube after humidification by a humidifier. Since the respiratory assistance apparatus provided with such a humidifier is used not only in a medical facility but also at home, it is required to simplify the handling with a simple structure.
  • the applicant of the present application has developed a humidifier corresponding to such a demand (see, for example, JP-A-2015-142647).
  • the humidifier is arranged in a container that contains liquid, a delivery mechanism that reduces the capacity of the container over time and sends the liquid out of the container, and an intake pipe that guides inhalation to the respiratory tract user's airway And a water-permeable member that is supplied with the liquid from the container and vaporizes the liquid.
  • the present invention was created under such circumstances, and the object of the present invention is to provide a humidifier that is simple in structure and easy to handle, and a respiratory assistance device using the humidifier. It is in.
  • the humidifier according to the present invention includes a container for storing a liquid, an intake pipe, and a part of the humidifier inserted in the container. And a humidifying member that is disposed in the intake pipe and absorbs the liquid in the container to vaporize the liquid.
  • the humidifying member is made of a water-absorbing material capable of absorbing the liquid in the container.
  • the humidifying member is formed of a water-absorbing material capable of absorbing the liquid in the container by capillary action.
  • the humidifying member is made of a porous material.
  • the humidifying member is made of at least one material selected from a woven fabric, a nonwoven fabric, a hollow fiber, a porous water-absorbing polymer, and a porous synthetic resin. To do.
  • the humidifier according to the present invention includes a heating unit for heating the liquid in the container.
  • the humidifying member is arranged in a cylindrical shape that is continuous or discontinuous in the circumferential direction along the inner periphery of the intake pipe, and the intake air passes through the cylindrical shape. Or is arranged so as to partition the internal space of the intake pipe, and intake air passes through the partitioned space.
  • the humidifying member is an aspect that makes at least one round of the inner circumference of the intake pipe.
  • the humidifying member is characterized in that a plurality of planar materials are arranged radially.
  • the humidifying member is characterized in that a plurality of planar materials are arranged in a lattice shape.
  • the humidifying member includes a holding portion that holds the humidifying member so that the humidifying member is arranged in a cylindrical shape that is continuous or discontinuous in the circumferential direction along the inner periphery of the intake pipe. To do.
  • the holding part is a spiral member.
  • the holding portion is a ring continuous member in which ring-shaped members are continuously arranged and connected along the axial direction of the intake pipe.
  • the humidifier according to the present invention is characterized in that a heating unit for heating the humidifying member is provided outside or inside the intake pipe.
  • the heating unit is provided with the intake pipe.
  • the inside of the intake pipe is provided with a heating section that heats the inside of the intake pipe from the outer peripheral side of the humidifying member.
  • the heating unit is arranged in a spiral shape on the outer periphery of the intake pipe.
  • the intake pipe has a convex portion spirally formed on an outer peripheral surface thereof, and a spiral concave portion is formed between the convex portions, and the heating portion includes the concave portion It is characterized by being arranged in a spiral.
  • the humidifier of the present invention is characterized in that a heating unit for heating the inside of the intake pipe from the outer peripheral side of the humidifying member is provided outside or inside the intake pipe.
  • the humidifying member is characterized in that the heating unit is arranged to heat the intake air in the intake pipe.
  • the heating unit is arranged to heat the condensed water accumulated in the intake pipe.
  • the respiratory assistance device of the present invention is characterized by including any one of the above humidifiers.
  • the humidifier and the respiratory assistance device of the present invention it is possible to achieve an excellent effect that the handling is simple with a simple structure.
  • FIG. 10 is a diagram illustrating a configuration example of holding units 128 to 328 according to another embodiment of the present invention.
  • FIG. 10 is a cross-sectional view showing a configuration example of humidifying members 424a to 824a and holding portions 428 to 828 in another embodiment of the present invention. It is a figure which shows the structural example of the holding
  • FIG. 1 is a diagram showing a respiratory assistance device 1 according to an embodiment of the present invention.
  • one part structure is abbreviate
  • the respiratory assistance device 1 shown in FIG. 1 is used by a patient (user) having a disorder in breathing, and sends inhaled gas (compressed air, oxygen, etc.) into the patient's airway.
  • the respiratory assistance device 1 includes a gas supply source 10, an intake pipe 11, a humidifier 12, and the like.
  • the gas supply source 10 supplies gas.
  • a known oxygen cylinder or blower is used as the gas supply source 10.
  • the blower refer to, for example, Japanese Patent No. 5211302.
  • One end of the intake pipe 11 is connected to the gas supply source 10.
  • the other end of the intake pipe 11 is connected to, for example, a mask MA1 that covers the mouth and nose of the patient.
  • the intake pipe 11 guides gas to the patient's airway. Illustration of an exhalation circuit such as an exhalation valve is omitted.
  • the humidifier 12 humidifies the gas in the intake pipe 11.
  • the humidifier 12 includes a container 13, a humidifying member 14, a guide member 15, and a heating unit 16.
  • the container 13 is a container for storing a necessary amount (for example, 60 cc for one night (8 hours)) of liquid (such as water).
  • the container 13 is preferably sealed.
  • the humidifying member 14 is disposed in the intake pipe 11 in a state where a part (for example, an end portion) of the humidifying member 14 is inserted into the container 13.
  • the humidifying member 14 includes a humidifying member 14a and a humidifying member 14b.
  • the humidifying member 14 a indicates a portion of the humidified member 14 disposed in the intake pipe 11 that is not covered with the guide member 15.
  • the humidifying member 14 b is a member from the portion inserted into the container 13 (the portion immersed in the liquid contained in FIG. 1) of the humidifying member 14 to the terminal portion of the guide member 15. Point to.
  • the humidifying member 14a and the humidifying member 14b are integrally formed. However, it is not limited to this, The humidification member 14a and the humidification member 14b are comprised as another member, and the aspect with which both were connected may be sufficient.
  • the humidifying member 14b absorbs the liquid in the container 13 from the end, and permeates the liquid to the humidifying member 14a by, for example, capillary action.
  • the liquid that has permeated the humidifying member 14 a is naturally vaporized in the intake pipe 11.
  • the humidifying member 14 is assumed to be composed of a water-absorbing material that can absorb the liquid in the container 13.
  • the water-absorbing material include materials that can absorb liquid by capillary action and water-absorbing polymers that absorb liquid due to other factors.
  • An example of a material that can absorb a liquid by capillary action is a porous material.
  • the porous material include a woven fabric, a nonwoven fabric, a material formed of hollow fibers, a porous water-absorbing polymer, and a porous synthetic resin such as a sponge.
  • the humidifying member may be formed of one porous material or a plurality of porous materials. That is, the humidification member should just be formed with the at least 1 said material.
  • the humidifying member will be described as being made of a water-absorbing material that can absorb liquid by capillary action.
  • the liquid is supplied from the liquid storage tank to the plurality of water-permeable hollow fibers arranged in the intake pipe through the supply pipe.
  • the liquid may flow backward from the permeable hollow fiber into the liquid storage tank depending on the pressure difference between the pressure in the liquid storage tank and the pressure in the permeable hollow fiber. It was. Such a backflow also carried various germs that propagated in the permeable hollow fiber into the liquid storage tank.
  • a material capable of absorbing a liquid by capillary action is used for the humidifying member 14, such a backflow hardly occurs in the first place.
  • the liquid once absorbed by the humidifying member 14 is unlikely to flow back into the container 13. Therefore, when a material capable of absorbing liquid by capillary action is used for the humidifying member 14, there is an advantage that the liquid in the container 13 can be kept clean.
  • the guiding member 15 guides the humidifying member 14b from the outlet 13a of the container 13 to the inside of the intake pipe 11.
  • the guide member 15 preferably covers the humidifying member 14b so that the liquid contained in the humidifying member 14b does not evaporate outside the intake pipe 11. Further, it is preferable to seal the portion so that the liquid inside does not leak from the connection portion between the outlet 13 a of the container 13 and the guide member 15.
  • the heating unit 16 heats the liquid in the container 13. By increasing the temperature of the liquid in the container 13, the liquid in the humidifying member 14a is easily vaporized.
  • the heating unit 17 heats the inside of the intake pipe 11.
  • the heating unit 17 may be provided inside or outside the intake pipe 11.
  • the heating unit 17 includes, for example, a heating unit 17a, a heating unit 17b, a heating unit 17c, and a heating unit 17d.
  • the heating unit 17a is disposed around the humidifying member 14a in the intake pipe 11, and heats the liquid held by the humidifying member 14a and the intake air in the intake pipe 11.
  • the location of the heating unit 17a may be anywhere inside or outside the intake pipe 11 as long as the liquid and the intake air in the intake pipe 11 can be heated.
  • surroundings of the humidification member 14a continuously or discontinuously may be sufficient as the heating part 17a.
  • the heating unit 17a is useful for uniformly heating the intake air in the intake pipe 11.
  • the heating unit 17a is also useful for heating and vaporizing the liquid held by the humidifying member 14a.
  • the heating unit 17a is also useful for heating and vaporizing the condensed water that has condensed on the outside of the humidifying member 14a.
  • the heating unit 17b is disposed on the outer periphery of the intake pipe 11 on the downstream side of the intake pipe 11 with respect to the humidifying member 14a, and heats the condensed water accumulated in the intake pipe 11.
  • positioning place of the heating part 17b may be any place inside and outside the intake pipe 11 as long as the dew condensation water which accumulates in the intake pipe 11 can be heated. Condensed water that accumulates in the intake pipe 11 causes the propagation of germs and is problematic in terms of hygiene. For this reason, the said dew condensation water is evaporated by the heating of the heating part 17b.
  • the heating unit 17b is also useful for heating the intake air on the downstream side of the intake pipe 11 with respect to the humidifying member 14a.
  • the heating unit 17c is disposed on the inner periphery of the intake pipe 11 upstream of the humidifying member 14a and heats the intake air supplied from the gas supply source 10.
  • the location of the heating unit 17c may be anywhere inside or outside the intake pipe 11 as long as the intake air can be heated.
  • the heating unit 17c is also useful for heating and vaporizing the condensed water condensed on the inner periphery of the intake pipe 11 upstream of the humidifying member 14a.
  • the heating unit 17d is disposed on the outer periphery of the intake pipe 11, and heats the liquid held by the humidifying member 14a and the intake air in the intake pipe 11. Such a heating unit is also included in the present invention.
  • the mechanism for supplying the liquid to the humidifying member 14 can be simplified. Thereby, the manufacturing cost of the respiratory assistance apparatus 1 can be reduced.
  • FIG. 2 is a diagram showing the respiratory assistance device 2 in the embodiment of the present invention.
  • the breathing assistance device 2 shown in FIG. 2 is used by a patient (user) who has a disorder in breathing, like the breathing assistance device 1, and gas (compressed air, oxygen, etc.) that is inhaled into the patient's airway ).
  • the respiratory assistance device 2 includes a gas supply source 20, an intake pipe 21, a humidifier 22, and the like.
  • the gas supply source 20 and the intake pipe 21 in the respiratory assistance device 2 are the same as the gas supply source 10 and the intake pipe 11 in the respiratory assistance device 1, and since they have already been described, the description thereof is omitted.
  • the difference between the respiratory assistance device 2 and the respiratory assistance device 1 is an aspect of each humidifier, which will be described below.
  • the humidifier 22 humidifies the gas in the intake pipe 21.
  • the humidifier 22 includes, for example, a container 23, a humidifying member 24, a guide member 25, a heating unit 26, a holding unit 28, and the like.
  • the heating unit 26 is the same as the heating unit 16 in the respiratory assistance device 2, and the heating unit 16 has already been described, and thus the description thereof is omitted.
  • the container 23 is a container for storing a necessary amount (for example, 60 cc for one night (8 hours)) of liquid (water, etc.).
  • the container 13 is preferably sealed.
  • the humidifying member 24 is arranged in the intake pipe 21 in a state where a part (for example, an end portion) of the humidifying member 24 is inserted into the container 23.
  • the humidifying member 24 includes a humidifying member 24a and a humidifying member 24b.
  • the humidifying member 24 a is a portion of the humidifying member 24 that has a cylindrical shape that is continuous or discontinuous in the circumferential direction along the inner periphery of the intake pipe 21. Point to.
  • a cylinder having the same axis as the intake pipe 21 and continuously making a round along the inner peripheral surface 21a in the intake pipe 21 is used.
  • a shape is assumed, it is not restricted to this, Other forms may be sufficient.
  • the aspect of the humidification member 24a is later demonstrated using FIG.
  • the humidifying member 24b is a portion of the humidifying member 24 inserted into the container 23 (the portion immersed in the contained liquid in FIG. 2) and the terminal portion of the guide member 25. Refers to things up to. And the humidification member 24b is connected with the humidification member 24a at the terminal as shown in FIG.2 (b), for example.
  • the humidifying member 24b absorbs the liquid in the container 23 from the end, and permeates the liquid to the humidifying member 24a by, for example, capillary action.
  • the liquid that has permeated the humidifying member 24 a is naturally vaporized in the intake pipe 21.
  • the material similar to the said humidification member 14 is assumed, for example.
  • the guide member 25 guides the humidifying member 24 b from the outlet 23 a of the container 23 to the inside of the intake pipe 21. Further, the guide member 25 preferably covers the surroundings of the humidifying member 24b so that the liquid contained in the humidifying member 24b does not evaporate outside the intake pipe 21. Further, it is preferable to seal the portion so that the liquid inside does not leak from the connection portion between the outlet 23 a of the container 23 and the guide member 15.
  • the heating unit 27 heats the inside of the intake pipe 21, and includes, for example, a heating unit 27a, a heating unit 27b, and a heating unit 27c.
  • the heating unit 27, the heating unit 27a, the heating unit 27b, and the heating unit 27c have the same functions as the heating unit 17, the heating unit 17a, the heating unit 17b, and the heating unit 17c. Has already been described above, the description thereof will be omitted.
  • the holding unit 28 holds the humidifying member 24a so that the humidifying member 24a has a cylindrical arrangement that is continuous or discontinuous in the circumferential direction along the inner periphery of the inhalation pipe 21 of the respiratory assistance device 2. It is. 2A and 2B, the holding portion 28 holds the humidifying member 24a so as to be arranged around the inner circumference of the intake pipe 21. As shown in FIG. 2A and FIG. 2B, the holding unit 28 may be configured to hold both ends of the humidifying member 24a as an example. In this case, the holding unit 28 includes a holding member 28a and a holding member 28b.
  • the one side surface of the holding member 28a has a structure in which the left end portion of the humidifying member 24a can be inserted.
  • the left end portion of the humidifying member 24a is inserted into one side surface of the holding member 28a, and the holding member 28a holds the left end portion of the humidifying member 24a.
  • a hole 28e through which the humidifying member 24b passes is provided on the other side surface of the holding member 28a.
  • the humidifying member 24b is passed through the hole 28e to connect the humidifying member 24a and the humidifying member 24b inside the holding member 28a. Therefore, the liquid that has permeated from the container 23 through the humidifying member 24b permeates the humidifying member 24a in the direction of the arrow shown in FIG.
  • the one side surface of the holding member 28b has a structure in which the right end portion of the humidifying member 24a can be inserted.
  • the right end portion of the humidifying member 24b is inserted into one side surface of the holding member 28b, and the holding member 28b holds the right end portion of the humidifying member 24a.
  • the humidifying member 24a is arranged in the intake pipe 21, the gas in the intake pipe 21 of the respiratory assistance device 2 can be uniformly humidified. Further, since the humidifying member 24a is arranged so that the intake air passes through the inside thereof, the humidification area for the intake air is wide. For this reason, the humidifying member 24a can sufficiently humidify the intake air.
  • FIG. 3 is a diagram showing the holding unit 28 according to the embodiment of the present invention.
  • FIG. 3A is a perspective view showing a state before the humidifying member 24 a is attached to the holding portion 28.
  • FIG. 3B is a cross-sectional view after the humidifying member 24 a is attached to the holding portion 28.
  • the holding portion 28 includes the holding member 28a and the holding member 28b.
  • the holding member 28a includes a circular ring member 28c having a circular ring shape.
  • the circular ring member 28c is provided with a circular ring-shaped ring hole 28d having a diameter smaller than its own diameter on one side surface.
  • the ring hole 28d is a hole into which the end of the humidifying member 24a is inserted.
  • the other side surface of the circular ring member 28 c is connected to the guide member 25.
  • the connecting portion is provided with a hole 28e through which the humidifying member 24b passes.
  • the humidifying member 24a and the humidifying member 24b are connected inside the circular ring member 28c.
  • the circular ring member 28c holds the humidifying member 24a.
  • the space between the ring hole 28d and the humidifying member 24a is sealed so that the liquid does not leak from the gap between the ring hole 28d and the humidifying member 24a.
  • the holding member 28b is configured by a circular ring member 28f having a circular ring shape as shown in FIG.
  • the circular ring member 28f has the same structure as the circular ring member 28c except that the hole 28e is not provided.
  • the circular ring member 28f holds the humidifying member 24a.
  • FIG. 4 is a diagram showing the holding unit 29 according to the embodiment of the present invention.
  • FIG. 4A is a perspective view after the humidifying member 24 a is attached to the holding portion 29.
  • FIG. 4B is a cross-sectional view after the humidifying member 24 a is attached to the holding portion 29.
  • circular ring members 29a and 29b constituting the holding portion 29 are used as shown in FIG.
  • the circular ring members 29a and 29b are circular ring-shaped members having different diameters as shown in FIG. 4B.
  • the humidifying member 24a is sandwiched between the circular ring member 29a and the circular ring member 29b.
  • the circular ring members 29a and 29b are assumed to be used, for example, at both end portions 24c and 24d of the humidifying member 24a, but are not limited thereto. That is, the circular ring members 29a and 29b may be used at the central portion 24e of the humidifying member 24a or other positions of the humidifying member 24a.
  • FIG. 5 is a diagram illustrating a configuration example of the holding units 128 to 328 according to another embodiment of the present invention.
  • the holding part in another embodiment of the present invention described below is a mode in which the humidifying member 24a is held at various positions.
  • FIG. 5A is a diagram illustrating a mode in which the humidifying member 24 a is held by the holding unit 128.
  • the holding unit 128 holds the humidifying member 24a at a position shifted from the both ends of the humidifying member 24a by a predetermined distance to the center side.
  • the holding part 128 is composed of, for example, circular ring members 128a and 128b.
  • the humidifying member 24a is attached to the inner peripheral surfaces of the circular ring members 128a and 128b.
  • the attachment mode may be an adhesive mode, a mode in which the humidifying member 24a is sandwiched from the inside and outside by separately using a circular ring member having an outer diameter smaller than the inner diameter of the circular ring members 128a and 128b (see Modification 1 of the holding portion).
  • a circular ring member having an outer diameter smaller than the inner diameter of the circular ring members 128a and 128b (see Modification 1 of the holding portion).
  • FIG. 5B is a diagram illustrating a mode in which the humidifying member 24 a is held by the holding unit 228.
  • the holding unit 228 holds the humidifying member 24a near the center.
  • the holding part 228 is configured by a circular ring member 228a, for example.
  • the humidifying member 24a is attached to the inner peripheral surface of the circular ring member 228a.
  • the attachment mode is the same as that of the circular ring members 128a and 128b.
  • FIG. 5C is a diagram illustrating a mode in which the humidifying member 24a is held by the holding unit 328.
  • the holding unit 328 holds the entire humidifying member 24a.
  • the holding part 328 is configured by, for example, a circular ring member 328a.
  • the circular ring member 328a is a mode in which the length of the circular ring member 228a is extended. Other than that, the description using FIG. 5B is applicable to the circular ring member 228a.
  • the holding unit of the present invention can hold the humidifying member 24a
  • various modes of the number of circular ring members and the length of the circular ring members are assumed.
  • the shape of the circular ring member is an example, and other shapes may be used as long as the humidifying member 24a can be held.
  • FIG. 6 is a cross-sectional view showing a configuration example of the humidifying members 424a to 824a and the holding portions 428 to 828 in another embodiment of the present invention.
  • the holding unit holds the humidifying member so that the humidifying member has a cylindrical arrangement that is continuous or discontinuous in the circumferential direction along the inner periphery of the intake pipe.
  • 6A and 6B show cylinder-like humidifying members 424a and 524a and holding portions 428 and 528 that are continuous in the circumferential direction along the inner periphery of the intake pipe.
  • the humidifying member 424a is a tubular member having an octagonal cross section.
  • the holding portion 428 includes a circular ring member 428a in which the ring hole 28d of the circular ring member described in FIG. 3 is an octagonal ring-shaped ring hole 428b.
  • the circular ring member 428a holds the humidifying member 424a.
  • the humidifying member 524a is a cylindrical member having a quadrangular cross section as shown in FIG. 6 (b).
  • the holding portion 528 is configured by, for example, a circular ring member 528a in which the ring hole 28d of the circular ring member described in FIG. 3 is a quadrangular ring-shaped ring hole 528b.
  • the circular ring member 528a holds the humidifying member 524a.
  • the cylindrical state-like humidifying member that is continuous in the circumferential direction along the inner circumference in the intake pipe has various shapes, and any cylindrical shape can be used as the humidifying member of the present invention. Applicable to. Moreover, the thing of a various aspect is applicable to the holding
  • 6 (c) and 6 (d) show cylinder-like humidifying members 624a and 724a and holding portions 628 and 728 that are discontinuous in the circumferential direction along the inner periphery of the intake pipe.
  • the humidifying member 624a is a circular cylindrical member whose cross section is not closed (partially opened).
  • the humidifying member of the present invention includes such a member.
  • maintenance part 628 is carrying out the aspect which provided the ring hole 628b according to the shape of the humidification member 624a in the circular ring member 628a which is not closed (partially opened), for example.
  • the circular ring member 628a holds the humidifying member 624a.
  • the circular ring shape which the holding part is not closed may be sufficient.
  • the humidifying member 724a has a circular shape with a discontinuous cross section as a whole.
  • the humidifying member 724a is formed by arranging a plurality of planar members 724c in a circular shape with a discontinuous cross section.
  • the holding part 728 is configured by, for example, a circular ring member 728a in which the ring hole 28d of the circular ring member described in FIG. 3 is replaced with a ring hole 728b having a circular shape with a discontinuous cross section.
  • the humidifying member 724a composed of a plurality of planar members 724c is inserted into the ring hole 728b, the circular ring member 728a holds the humidifying member 724a.
  • the cylindrical state-like humidifying member that is discontinuous in the circumferential direction along the inner periphery of the intake pipe is shown in a circular shape, but the present invention is not limited to this. Instead, the humidifying member may have a polygonal cross section. That is, there are various shapes of the humidifying member in a cylindrical state that is discontinuous in the circumferential direction along the inner periphery in the intake pipe. All shapes reflecting the above purpose can be applied to the humidifying member of the present invention.
  • FIG. 6 (e) shows a humidifying member 824a in a cylindrical state (cross section is star-shaped) continuous in the circumferential direction along the inner periphery of the intake pipe, and a holding portion 828.
  • the humidifying member 824a is a cylindrical member having a star-shaped cross section.
  • the humidifying member of the present invention includes such a member.
  • maintenance part 828 is carrying out the aspect which provided the star-shaped hole 824b according to the shape of the humidification member 824a in the circular ring member 828a, for example.
  • the circular ring member 828a holds the humidifying member 824a.
  • the star shape is an example of a cross section, and other cross-sectional shapes are included in the present invention.
  • FIG. 7 is a diagram illustrating a configuration example of the holding unit 830 according to another embodiment of the present invention.
  • the holding unit 830 may be a spiral member 831 having a spiral shape.
  • An example of the spiral member 831 is a spring member formed in a spiral shape, but is not limited thereto.
  • the diameter of the spiral member 831 is such that the outer periphery of the spiral member 831 is the inner periphery of the humidifying member 840. It is assumed that the diameter is abutting. In this way, since the spiral member 831 supports the humidifying member 840 from the cylindrical inner peripheral surface 840b side, even if the cylindrical inner peripheral surface 840b of the humidifying member 840 is made of a soft material, the humidifying member The load received by the cylindrical inner peripheral surface 840b can be reduced by the weight of the liquid held inside the 840.
  • the holding portion 830 is not limited to a member having a spiral shape, and may be a member having another shape as long as the humidifying member 840 can be supported from the cylindrical inner peripheral surface 840b side as described above. May be.
  • the holding member 830 may be a ring continuous member in which circular rings having a diameter contacting the cylindrical inner peripheral surface 840b of the humidifying member 840 are arranged at predetermined intervals and adjacent circular rings are connected to each other.
  • the holding member 830 may be a ring continuous member in which polygonal rings that contact the cylindrical inner peripheral surface 840b of the humidifying member 840 are arranged at predetermined intervals and adjacent polygonal rings are connected to each other.
  • the predetermined interval may be either a fixed interval or an indefinite interval.
  • FIG. 8 is a diagram showing a humidifying unit 900 disposed in the intake pipe 21 according to another embodiment of the present invention.
  • the heating unit 910 is disposed so as to coincide with the axis of the intake pipe 21.
  • the humidifying member 900 is arranged such that four planar members 900 a partition the intake pipe 21 into four spaces. And each planar member 900a is arrange
  • the planar member 900 a is disposed so as to extend along the length direction of the intake pipe 21.
  • the intake air passing through the inside of the intake pipe 21 passes through the partitioned space and is supplied to the mask.
  • the material which comprises the planar member 900a may be a material in any of all the humidification members demonstrated above.
  • heating unit 910 and the humidifying member 900 are arranged as shown in FIG. 8, heat is uniformly transmitted to the humidifying member 900, and the intake air in the intake pipe 21 is also heated uniformly. can do.
  • FIG. 9 is a diagram showing humidifying sections 920 and 930 arranged in the intake pipe 21 according to another embodiment of the present invention.
  • the humidifying member 900 is arranged so as to partition the internal space of the intake pipe 21 and is configured such that intake air passes through the partitioned space.
  • FIGS. 9 (a) and 9 (b) An example of a configuration that can achieve this is shown in FIGS. 9 (a) and 9 (b).
  • FIG. 9A shows a humidifying member 920 that is a modification of the humidifying member.
  • the planar members 900a are arranged in a cross shape.
  • the humidifying member 920 includes a number of the planar members 900a (in FIG. 9A). 12 sheets) and a plurality of planar members 900a are arranged radially from the center of the intake pipe 21.
  • the planar member 900 a is disposed so as to extend along the length direction of the intake pipe 21.
  • the heating unit 910 is disposed at the center of the intake pipe 21. Note that the heating unit 910 may be disposed at another position.
  • FIG. 9B is a view showing a humidifying member 930 which is a modified example of the humidifying member.
  • Both the humidifying member 900 and the humidifying member 920 are formed by arranging a plurality of planar members radially from the center of the intake pipe 21.
  • the humidifying member 930 lattices the planar members 900 a in the intake pipe 21. It is arranged in a shape.
  • the planar member 900 a is disposed so as to extend along the length direction of the intake pipe 21.
  • the heating unit 910 is disposed at the center of the intake pipe 21. Note that the heating unit 910 may be disposed at another position.
  • Humidifiers and respiratory assistance devices that combine the elements of all the embodiments of the present invention described above are also included in the present invention.
  • FIG. 10 is a diagram illustrating a state in which a bellows tube 940 is used as an intake tube.
  • FIG. 10A is a perspective view of a bellows tube 940 provided with a heating unit 950.
  • FIG. 10B is a plan view of the bellows tube 940 in which the heating unit 950 is arranged.
  • the bellows tube 940 includes, for example, a mode in which convex portions 940d are spirally formed on the outer peripheral surface 940c of the bellows tube 940, as shown in FIGS. 10 (a) and 10 (b).
  • a concave portion 940e is formed in a spiral shape between the convex portions 940d.
  • the spiral shape of the concave portion 940e is formed along the spiral shape of the convex portion 940d.
  • the heating unit 950 is a linear or tape heater such as a heating wire.
  • the heating unit 950 is disposed along the concave portion 940e of the bellows tube 940. If the heating unit 950 is arranged in this way, the inside can be uniformly heated from the outer peripheral surface of the bellows tube 940.
  • various modes such as a position corresponding to the periphery of the humidifying member, an upstream side or a downstream side of the humidifying member, and the entire outer peripheral surface of the bellows tube 940 are assumed. All such embodiments are included in the present invention.
  • Humidifiers and respiratory assistance devices that combine the elements of all the embodiments of the present invention described above are also included in the present invention.
  • the embodiment of the present invention shows an example for embodying the present invention, and the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention. .

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Air Humidification (AREA)

Abstract

La présente invention concerne un appareil d'assistance respiratoire doté d'une source d'alimentation en gaz, d'un tube d'admission et d'un humidificateur. La source d'alimentation en gaz fournit un gaz. Une extrémité du tube d'admission est reliée à la source d'alimentation en gaz, et l'autre extrémité du tube d'admission est reliée à un masque pour couvrir la bouche et le nez d'un patient. L'humidificateur humidifie le gaz dans le tube d'admission. Plus précisément, l'humidificateur est doté d'un récipient, d'un élément d'humidification et d'un élément de guidage pour guider entre un récipient d'élément d'humidification et le tube d'admission. L'élément d'humidification est placé dans le tube d'admission dans un état dans lequel une partie d'extrémité de l'élément d'humidification est insérée dans le récipient. L'élément d'humidification aspire du liquide dans le récipient depuis la partie d'extrémité de celui-ci et entraîne le liquide à imprégner l'élément d'humidification par action capillaire. Le liquide qui imprègne l'élément d'humidification est naturellement vaporisé dans le tube d'admission. La présente invention concerne également un humidificateur qui est facile à manipuler et présente une structure simple, et un appareil d'assistance respiratoire qui utilise l'humidificateur.
PCT/JP2016/079393 2015-10-16 2016-10-04 Humidificateur et appareil d'assistance respiratoire WO2017065047A1 (fr)

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JP2017545157A JPWO2017065047A1 (ja) 2015-10-16 2016-10-04 加湿器、及び、呼吸補助装置

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JP2015-205052 2015-10-16
JP2015205052 2015-10-16

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02118555U (fr) * 1989-03-14 1990-09-25
US20100083965A1 (en) * 2007-02-09 2010-04-08 Resmed Ltd. Humidification arrangement for a respiratory apparatus
JP5734842B2 (ja) * 2009-04-06 2015-06-17 株式会社Ｔｋｂ 人工気道及び該人工気道を備えた呼吸回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02118555U (fr) * 1989-03-14 1990-09-25
US20100083965A1 (en) * 2007-02-09 2010-04-08 Resmed Ltd. Humidification arrangement for a respiratory apparatus
JP5734842B2 (ja) * 2009-04-06 2015-06-17 株式会社Ｔｋｂ 人工気道及び該人工気道を備えた呼吸回路

Also Published As

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