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WO2020095721A1 - Machine d'aspiration médicale - Google Patents

Machine d'aspiration médicale Download PDF

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Publication number
WO2020095721A1
WO2020095721A1 PCT/JP2019/041933 JP2019041933W WO2020095721A1 WO 2020095721 A1 WO2020095721 A1 WO 2020095721A1 JP 2019041933 W JP2019041933 W JP 2019041933W WO 2020095721 A1 WO2020095721 A1 WO 2020095721A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
negative pressure
container
medical suction
suction device
Prior art date
Application number
PCT/JP2019/041933
Other languages
English (en)
Japanese (ja)
Inventor
善悦 鈴木
近藤　正芳
尚 金澤
Original Assignee
住友ベークライト株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友ベークライト株式会社 filed Critical 住友ベークライト株式会社
Priority to CN201990001053.1U priority Critical patent/CN216169074U/zh
Publication of WO2020095721A1 publication Critical patent/WO2020095721A1/fr

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Classifications

    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems

Definitions

  • the present invention relates to a medical suction device including a filter.
  • the present application claims priority based on Japanese Patent Application No. 2018-212650 filed in Japan on Nov. 9, 2018, and the content thereof is incorporated herein.
  • a medical suction device including a negative pressure container that generates a negative pressure for suction is generally used.
  • a storage container for storing drainage (described as a drainage container in the same document), a storage container and a suction regulator are connected to make the inside of the storage container a negative pressure and a negative pressure.
  • a medical suction device (described in the same document as a drainage suction device) including a negative pressure container (described in the same document as a water sealer) capable of confirming the state.
  • the negative pressure container described in the document is connected to the storage container through a pipe. Then, the negative pressure container contains therein water for dipping the tip of the pipe therein, and the negative pressure generated inside by the suction regulator sucks the air in the container through the pipe.
  • a predetermined negative pressure corresponding to the internal pressure of the patient's body cavity is generated in the container.
  • the suction force generated in the accommodating container is monitored in the negative pressure container as a generation state of bubbles discharged from the tip of the pipe into the water sealing liquid (water).
  • the present invention has been made in view of the above problems, and an object thereof is to provide a medical suction device capable of keeping the inside of a negative pressure container cleaner.
  • the medical suction device of the present invention is a medical suction device that sucks drainage by negative pressure formed by a negative pressure container, and is connected to the negative pressure container and the negative pressure container to supply air to the outside.
  • a filter that allows the air to pass through while blocking the passage of liquids and solids is provided on the path.
  • the medical suction device of the present invention can keep the inside of the negative pressure container cleaner.
  • FIG. 1 is a perspective view showing a medical suction device 1 according to this embodiment
  • FIG. 2 is a bottom view of a bottle cap 9.
  • the medical suction device 1 according to the present embodiment suctions drainage by the negative pressure formed by the negative pressure container 2.
  • the medical suction device 1 includes a negative pressure container 2, an exhaust unit (exhaust member 4) that is connected to the negative pressure container 2 and exhausts air to the outside, and a housing that is connected to the negative pressure container 2 and stores drainage. And a container 3 having a portion 3e.
  • a filter 10 that allows air to pass through while blocking passage of liquids and solids is provided on the air path from the inside of the storage container 3 to the inside of the negative pressure container 2.
  • the filter 10 Since the filter 10 is provided on the air path from the inside of the accommodating container 3 to the inside of the negative pressure container 2, the accommodating container 3 is accidentally tilted and the normal use state (standing state) is maintained. It is possible to prevent the drainage stored in the storage container 3 from moving to the negative pressure container 2 even in a different state (falling down state). In this way, by suppressing the movement of the drainage liquid from the storage container 3 to the negative pressure container 2, for example, when the negative pressure container 2 is provided with the balloon 5, the balloon 5 comes into contact with the drainage liquid and deteriorates. This can be prevented, and the negative pressure container 2 can be kept clean. Further, it is possible to prevent the drained liquid from further leaking (jetting) to the outside via the negative pressure container 2.
  • FIG. 3 is a view showing a cross section around the bottle cap 9, and is a view showing a cross section taken along the line III-III of FIG. 2.
  • the negative pressure container 2 includes a balloon 5 for confirming the pressure state.
  • a cap 2a is attached to the lower portion of the negative pressure container 2 so that the air in the negative pressure container 2 can communicate with the outside to remove the air.
  • the balloon 5 is disposed inside the negative pressure container 2 by the cap 2 a.
  • the negative pressure container 2 and the storage container 3 are internally connected by a connection tube 6.
  • the housing container 3 has a housing body 3d having a housing portion 3e and a connection lid (connection boss 9a) that covers the opening of the container body 3d and is connected to the negative pressure container 2 via the connecting tube 6. And a bottle cap 9).
  • the bottle cap 9 has a liquid collection port 9b protruding upward.
  • a tube (not shown) is connected to the liquid collection port 9b of the storage container 3, so that the storage container 3 can store the drainage.
  • a clamp member 3b is attached to the liquid collection port 9b, and the clamp member 3b closes the flow path connected to the liquid collection port 9b, thereby stopping the inflow of drainage liquid from the human body into the storage container 3. It is configured to be possible.
  • the storage container 3 (the container body 3d side of the bottle cap 9) is provided with a filter mounting portion 9d to which the filter 10 is mounted.
  • the filter attachment portion 9d has a step portion to which the peripheral edge of the disk-shaped filter 10 is adhered (or welded), is formed in a circular shape in bottom view, and is formed so as to project downward from the surroundings. There is.
  • a return projection 9e is formed around the connection boss 9a on the surface of the bottle cap 9 on the housing portion 3e side so as to project to the housing portion 3e side (filter 10 side).
  • the return protrusion 9e is for suppressing the drainage of the storage container 3 to the connecting tube 6 side when the container 3 is tilted down and passes through a vent hole 10a described later to the connecting tube 6 side of the filter 10. is there.
  • the return protrusion 9e is formed in a circular shape (annular shape) in cross section, and is formed so as to protrude from the periphery of the through hole penetrating the connection boss 9a toward the accommodation portion 3e.
  • the return protrusions 9e allow air to pass between the connection boss 9a and the vent hole 10a, while suppressing the drainage of the drainage liquid flowing from the vent hole 10a to the connecting tube 6.
  • a cylindrical inner boss 9c connected to the liquid collection port 9b is formed on the surface of the bottle cap 9 on the accommodation portion 3e side so as to project toward the accommodation portion 3e side (downward).
  • the exhaust member 4 is for exhausting the air in the medical suction device 1 (negative pressure container 2) to the outside to make the inside of the negative pressure container 2 into a negative pressure state.
  • a negative pressure container side one-way valve (not shown) is provided on the negative pressure container side and the exhaust port side.
  • the exhaust member 4 has elasticity and is configured to be deformable into a natural state and a compressed state compressed from the natural state.
  • the filter 10 is attached to the filter attachment portion 9d and is arranged on the container body 3d side of the bottle cap 9. Since the filter 10 is attached to the bottle cap 9, the filter 10 can be easily arranged in the storage container 3 by attaching the bottle cap 9 to the container body 3d.
  • the filter 10 disposed in the storage container 3 is disposed so as to separate the internal space of the connection tube 6 that connects the negative pressure container 2 and the storage container 3 from the internal space of the storage container 3. ..
  • the filter according to the present invention is not limited to the filter 10 attached to the bottle cap 9 as long as it is provided on the air path from the inside of the storage container 3 to the inside of the negative pressure container 2.
  • the filter may be provided inside the connecting tube 6, and the connecting tube 6 may be configured to be divided, and a filter (not shown) may be provided between the connecting tubes to connect the divided members to each other. It may be provided inside.
  • the filter may be attached to the container body 3d when the bottle cap 9 is not provided, and the filter may be attached to the connection tube 6 and the negative pressure inside the negative pressure container 2. You may make it arrange
  • the filter 10 is formed with a vent hole 10a having a diameter larger than the average hole diameter of the filter 10.
  • the “average pore diameter of the filter 10” is specifically the average pore diameter of a large number of pores provided in the porous material 10d described later, and for example, the portion of the filter 10 in which the vent holes 10a are not formed is A value calculated by measuring with the mercury penetration method using a cut-out test piece.
  • the filter 10 does not necessarily need to have the vent hole 10a. However, since the ventilation hole 10a is formed in the filter 10, it becomes easy to avoid complete loss of ventilation performance when a part of the filter 10 is clogged with drainage, and the subsequent drainage operation is performed. It will be easier to continue.
  • the ventilation hole 10a of the filter 10 is formed on an imaginary line L extending upward through the center of the housing portion 3e when the housing container 3 shown in FIG. 1 is upright.
  • a part of the storage container 3 is hung on a part of a shelf beside the bed, and the storage container 3 stands upside down. Including a person who is in the same posture as when standing upright.
  • the ventilation hole 10a is formed on the imaginary line L extending upward through the center of the accommodation portion 3e of the accommodation container 3, when the accommodation container 3 is tilted in any direction. However, it is possible to make it difficult for the drainage liquid to reach the vent hole 10a.
  • the drainage is stored only from half of the storage container 3 to a height lower than the radius of the ventilation hole 10a, the drainage will leak from the ventilation hole 10a even if the storage container 3 is tilted and left as it is. There is no. Therefore, it is possible to suppress the drainage contained in the container 3 from flowing into the negative pressure container 2 through the ventilation hole 10a and the connecting tube 6.
  • the ventilation hole 10a is provided in the center of the circular filter 10 and is arranged on the imaginary line L, but the configuration is not limited to this. That is, even if the ventilation hole 10a is provided not at the center of the filter 10 but at the corner of the filter 10, it may be arranged on the imaginary line L.
  • the filter 10 is formed with a through hole 10b for passing the inner boss 9c provided on the bottle cap 9 and having a diameter which is the same as or slightly larger than the outer diameter of the inner boss 9c.
  • FIG. 4 is an enlarged cross-sectional view showing a cross section of the filter 10 according to the present embodiment in an enlarged manner.
  • the filter 10 is a sheet-like filter that includes the non-woven fabric 10c and has a hydrophobic surface at least on the housing portion 3e side.
  • the filter 10 according to the present embodiment includes, as a membrane, an open-cell type resin porous material 10d containing an acrylic copolymer, and a nylon non-woven fabric 10c as a support material.
  • the porous material 10d is on both sides and the inside of the nonwoven fabric 10c, the layers are not clearly separated, and the filter 10 has no distinction between the front surface and the back surface. Then, it is optional whether the porous material 10d is a member having hydrophobicity and the non-woven fabric 10c has hydrophobicity.
  • the filter 10 is provided with the non-woven fabric 10c, and at least the surface on the side of the containing portion 3e has a hydrophobic sheet shape, so that it is possible to ventilate while blocking the passage of liquids and solids,
  • the shape of the filter 10 can be stabilized by the characteristics of the non-woven fabric 10c as the support material.
  • the filter 10 has been described as having “hydrophobicity”, strictly speaking, it means “having hydrophobicity as a whole surface on the accommodation section 3e side”, and a part other than the surface on the accommodation section 3e side. May have hydrophilicity.
  • the porous material 10d of the filter 10 is provided facing (exposed) to the housing portion 3e.
  • the filter 10 includes the resin-made open-cell type porous material 10d (for example, a resin membrane) facing the housing portion 3e, so that the porous material 10d allows the air from the housing portion 3e to pass therethrough. While the drainage can be properly captured, it is possible to preferably prevent the drainage stored in the storage portion 3e from going to the negative pressure container 2.
  • the porous material 10d is impregnated into the gap between the fibers forming the non-woven fabric 10c and is bonded to the non-woven fabric 10c. Since the nonwoven fabric 10c is impregnated with the porous material 10d and the two are bonded together, the bonding force between the porous material 10d and the nonwoven fabric 10c is increased.
  • the porous material 10d is provided on the housing portion 3e side, but the configuration is not limited to this. That is, which surface of the filter 10 is attached to the filter attachment portion 9d can be arbitrarily selected.
  • FIG. 5 is an enlarged cross-sectional view showing a cross section of a filter 10X according to a modification in an enlarged manner.
  • the filter 10X according to the modification includes a porous material 10f made of resin of an open cell type containing polyallylsulfone (PAS) as a membrane, and a nonwoven fabric 10e made of polyester as a support material.
  • PAS polyallylsulfone
  • the filter 10X is configured to include a first layer 10g including a nonwoven fabric 10e and a second layer 10h different from the first layer 10g.
  • the first layer 10g is arranged closer to the filter mounting portion 9d than the center of the filter 10X in the thickness direction. More specifically, the first layer 10g is arranged so as to be exposed on the surface of the filter attachment portion 9d side. As described above, the first layer 10g including the nonwoven fabric 10e is disposed closer to the filter mounting portion 9d side than the center in the thickness direction of the filter 10X. The shape of the filter 10X can be stabilized.
  • the change in the shape of the first layer 10g in the non-woven fabric 10e can be suppressed, and thus the separation of the filter 10X from the filter mounting portion 9d can be suppressed.
  • the second layer 10h which is a region for capturing the drainage more than the first layer 10g and contains a large amount of the porous material 10f, can be widely secured in the thickness direction of the filter 10X.
  • the filter 10X is not limited to the one in which the second layer 10h does not include the nonwoven fabric 10e at all. That is, even if each of the first layer 10g and the second layer 10h is composed of the porous material 10d and the nonwoven fabric 10e, the ratio of the nonwoven fabric 10e included in the first layer 10g is the second. It may be higher than the ratio of the non-woven fabric 10e included in the layer 10h.
  • the first layer 10g is disposed on the filter attachment portion 9d side, but the configuration is not limited to such a configuration. That is, which surface of the filter 10X is attached to the filter attachment portion 9d can be arbitrarily selected.
  • a medical suction device for sucking drainage by negative pressure formed by a negative pressure container, The negative pressure container, An exhaust unit connected to the negative pressure container to exhaust air to the outside, A storage container having a storage portion connected to the negative pressure container to store the drainage, A medical suction characterized in that a filter that allows the air to pass while blocking the passage of liquids and solids is provided on the path of the air from the inside of the storage container to the inside of the negative pressure container.
  • the storage container includes a container main body having the storage part, and a connection lid having a connection part for covering the opening of the container main body and connecting to the negative pressure container, The medical suction device according to (1), wherein the filter is disposed on the container body side of the connection lid.
  • the storage container has a filter mounting portion to which the filter is mounted,
  • the filter is configured to include a first layer containing the non-woven fabric and a second layer different from the first layer,
  • the medical suction device according to (5) wherein the first layer is disposed closer to the filter attachment portion than the center of the filter in the thickness direction.
  • the filter includes an open-cell type resin porous material,
  • the medical suction device according to (5) or (6), wherein the porous material is provided so as to face the accommodation portion.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne une machine d'aspiration médicale capable de maintenir l'intérieur d'un conteneur à pression négative plus propre. La machine d'aspiration médicale (1) est conçue pour aspirer un liquide évacué à l'aide de la pression négative générée par le conteneur à pression négative (2). La machine d'aspiration médicale (1) comprend : le conteneur à pression négative (2) ; un élément d'évacuation d'air (4) qui est relié au conteneur à pression négative (2) et évacue l'air vers l'extérieur ; et un conteneur de stockage (3) qui est relié au conteneur à pression négative (2) et qui a une section de stockage pour stocker le liquide évacué. Un filtre (10) qui empêche les liquides et les solides de passer à travers celui-ci mais transmet l'air est disposé dans un trajet de l'air s'étendant de l'intérieur du conteneur de stockage (3) à l'intérieur du conteneur à pression négative (2).
PCT/JP2019/041933 2018-11-09 2019-10-25 Machine d'aspiration médicale WO2020095721A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201990001053.1U CN216169074U (zh) 2018-11-09 2019-10-25 医用吸引器械

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018211650A JP7293616B2 (ja) 2018-11-09 2018-11-09 医療用吸引器具
JP2018-211650 2018-11-09

Publications (1)

Publication Number Publication Date
WO2020095721A1 true WO2020095721A1 (fr) 2020-05-14

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Application Number Title Priority Date Filing Date
PCT/JP2019/041933 WO2020095721A1 (fr) 2018-11-09 2019-10-25 Machine d'aspiration médicale

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JP (1) JP7293616B2 (fr)
CN (1) CN216169074U (fr)
WO (1) WO2020095721A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7185309B2 (ja) * 2020-04-20 2022-12-07 株式会社ニューギン 遊技機
JP7185306B2 (ja) * 2020-04-20 2022-12-07 株式会社ニューギン 遊技機
JP7185308B2 (ja) * 2020-04-20 2022-12-07 株式会社ニューギン 遊技機

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719197A (en) * 1971-03-04 1973-03-06 Voys Inc Le Aseptic suction drainage system and valve therefor
EP0358302A2 (fr) * 1988-05-28 1990-03-14 Smiths Industries Public Limited Company Récipient pour succion médico-chirurgicale
JPH08216310A (ja) * 1995-02-17 1996-08-27 Nippon Kyushutai Gijutsu Kenkyusho:Kk 多孔性溶結複合体シート及びその製造法
US6261276B1 (en) * 1995-03-13 2001-07-17 I.S.I. International, Inc. Apparatus for draining surgical wounds
JP2002201303A (ja) * 2000-12-27 2002-07-19 Toray Coatex Co Ltd 多孔性シート材料
DE202006012253U1 (de) * 2006-08-09 2006-12-21 Pacific Hospital Supply Co., Ltd. Sputum-Absaugeinrichtung
JP2013074914A (ja) * 2011-09-29 2013-04-25 Sumitomo Bakelite Co Ltd 医療用吸引器具、陰圧形成装置、および、一方弁を有する栓部材

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719197A (en) * 1971-03-04 1973-03-06 Voys Inc Le Aseptic suction drainage system and valve therefor
EP0358302A2 (fr) * 1988-05-28 1990-03-14 Smiths Industries Public Limited Company Récipient pour succion médico-chirurgicale
JPH08216310A (ja) * 1995-02-17 1996-08-27 Nippon Kyushutai Gijutsu Kenkyusho:Kk 多孔性溶結複合体シート及びその製造法
US6261276B1 (en) * 1995-03-13 2001-07-17 I.S.I. International, Inc. Apparatus for draining surgical wounds
JP2002201303A (ja) * 2000-12-27 2002-07-19 Toray Coatex Co Ltd 多孔性シート材料
DE202006012253U1 (de) * 2006-08-09 2006-12-21 Pacific Hospital Supply Co., Ltd. Sputum-Absaugeinrichtung
JP2013074914A (ja) * 2011-09-29 2013-04-25 Sumitomo Bakelite Co Ltd 医療用吸引器具、陰圧形成装置、および、一方弁を有する栓部材

Also Published As

Publication number Publication date
CN216169074U (zh) 2022-04-05
JP7293616B2 (ja) 2023-06-20
JP2020075039A (ja) 2020-05-21

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