WO2017188398A1 - Filtre de piégeage des virus pour sac ou contenant jetable pour aspirateur médical - Google Patents

Filtre de piégeage des virus pour sac ou contenant jetable pour aspirateur médical Download PDF

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Publication number
WO2017188398A1
WO2017188398A1 PCT/JP2017/016811 JP2017016811W WO2017188398A1 WO 2017188398 A1 WO2017188398 A1 WO 2017188398A1 JP 2017016811 W JP2017016811 W JP 2017016811W WO 2017188398 A1 WO2017188398 A1 WO 2017188398A1
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Prior art keywords
filter
container
disposable bag
ptfe
film
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PCT/JP2017/016811
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English (en)
Japanese (ja)
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悠一 佐紺
将和 増田
暁 倉本
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グリーンプラ株式会社
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Priority to JP2018514711A priority Critical patent/JP7055379B2/ja
Publication of WO2017188398A1 publication Critical patent/WO2017188398A1/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
    • 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 claims the priority of PCT / JP2016 / 0613148 "Minder filter using PTFE film, and disposable bag or container for medical aspirator using it.”
  • the present invention evacuates a patient's body exhalation through a bag or container in a medical aspirator system, and at the same time aspirates and stores wastes such as body endocrine and saline, blood, etc.
  • the present invention relates to a disposable bag or container for discarding the bag or container itself when it reaches, and a secondary filter to be installed downstream of the bag or container.
  • an intake port for introducing exhalation and body endocrine substances and the like sucked from the patient into the bag and an opening for exhausting the air in the bag to a rigid container outside the bag are structurally indispensable.
  • Patent Document 1 the opening for exhaustion contains a body endocrine that is aspirated simultaneously with air permeability for transmitting suction (negative pressure) from the external suction pump to the suction catheter inserted into the patient's body.
  • a waterproof filter hereinafter referred to as "primary filter” to prevent filtration from the opening to the suction pump side.
  • a sintered body of high molecular weight polyethylene is immersed in an aqueous solution of sodium carboxymethylcellulose (CMC) and dried to obtain a function corresponding to these two requirements, ie, two types of cylindrical molded articles Molded articles made of different materials are used as ventilation / waterproof filters (hereinafter referred to as "PE sintered bodies / CMC filters”) in the form of blocking the exhaust port.
  • PE sintered bodies / CMC filters ventilation / waterproof filters
  • the basic system 100 is usually configured as schematically shown in FIG. (1)
  • a suction port 11 for connecting a suction catheter 18 for suctioning body endocrine substances and the like of a patient etc., and for discharging the air in the bag from the bag through the filter 12 while preventing water leakage.
  • Disposable plastic bag 110 which is made of flexible plastic and has an exhaust port 13 and is formed so as to be able to store body endocrine such as a patient in this bag 110 (2)
  • a rigid container body 120 having a discharge port 15 / suction port 16 for storing a disposable bag or the like and for reducing the pressure inside, and its lid 122 (3)
  • Aspirator main body 130 for generating a suction force by an electric motor (4)
  • Suction port for transferring suction force to the catheter 18 (5)
  • Tube 19 for connecting the rigid container main body 120 and the suction main body 130 and a joint for mounting the same (not shown)
  • the basic system 100 stores the disposable bag 110 of (1) inside the rigid container body 120 of (2), and directly connects the exhaust port 13 of the bag and the suction port 16 on the side of the suction device 130 of (3). Instead of connecting the discharge port 15 of the rigid container and the suction port 16 on the suction device side, the pressure in the rigid container is reduced to reduce the pressure from the exhaust port 13 of the disposable bag etc. There is. The reason for this is that since the bag is expanded under reduced pressure, storage of body endocrine substances etc. is facilitated and at the same time it is simple at the time of removal of the suction bag, and body endocrine substances etc. in the bag are temporarily sintered. Even if it leaks from the body / CMC filter 12, it is a safety measure to store this in a rigid container and prevent it from being absorbed directly by the suction mechanism on the main body side.
  • a PE sintered body / CMC filter is formed in a molded article of plastic (PP) provided with a pair of suction port and exhaust port to close the exhaust port.
  • the molded product is formed by a method of heat-sealing a plastic bag and a molded product by storing the molded product inside a flexible plastic bag.
  • the mechanism for suctioning secretions from the patient's body into the disposable bag etc. is as follows. First, the aspirator main body 130 sucks the air in the rigid container from the discharge port 15 of the rigid container main body 120 at a pressure of usually 20 to 35 kPa, and the pressure in the rigid container is reduced. As a result, the disposable bag etc. 110 stored in the rigid container expand due to the pressure difference, and at the same time, the air in the disposable bag etc. is discharged from the exhaust port 13 of the disposable bag etc. 110 through the ventilation filter attached to the same bag. As a result, suction force is generated in the bag 110, whereby the body's endocrinecrine substance and the like of the patient are sucked into the disposable bag and the like 110 through the suction catheter 18.
  • a suction port (a liquid discharge container device is connected to a suction source and the suction bag is exhausted) May be placed in the lid, may be directly connected to the suction bag, and may be placed in a rigid drainage container so that the drainage container is first evacuated and then It is described for the first time that the suction bag located therein is evacuated. And, it is supposed that the deformation of these shapes belongs to the most known.
  • Vacuum suction waste bag member "High-performance filter and vent”, Essentra Porous Technologies, 2014 "3786-012 Filter Valve”, Vacsax Limited Material Specification, January 2012
  • Carboxymethylcellulose sodium "serogen” general catalog Daiichi Kogyo Seiyaku Co., Ltd. Morse Mask Series Catalog, Ace International Japan Co., Ltd.
  • pathogen barrier properties are required to prevent bacteria and viruses (hereinafter collectively referred to as “pathogenic bacteria”) contained in body exhaled breath out of disposable bags etc. during ventilation. It is.
  • pathogenic bacteria bacteria and viruses contained in body exhaled breath out of disposable bags etc. during ventilation.
  • the main concern is the efficient compatibility of the breathability and the waterproofness which is a functional element for operating the entire medical suction system, and regarding the pathogen barrier property of exhaust gas.
  • pathogen barrier properties, in particular for body exhalation have not been discussed so much.
  • the fact that this is dissipated to the surrounding environment is an extremely large risk that should not be neglected, and naturally, the pathogen barrier property is an important issue for which countermeasures should be considered beyond the ventilation and waterproof function of the filter. .
  • the disposable bag etc. 110 stores the sucked body endocrine etc. in the bag and discards it together with the bag when it reaches a predetermined amount, and the body endocrines sucked and stored in the bag is the filter part It is necessary to prevent leakage from the exhaust port 13 through 12 and contaminating the inside of the rigid container body 120 and also to adversely affect the suction mechanism of the aspirator body 130. Furthermore, as described above, the filter portion must have the pathogen-barrier property as described above, even when body endocrine substances etc. leak the filter portion during ventilation of the discharge port. It goes without saying that it is important whether or not the pathogen contained in the exhalation of the body exhalation through the filter or the leakage of the endocrine secretion is removed.
  • the present air-permeable / water-proof filter is made by immersing a porous PE sintered body, which is formed into a desired shape by heat-sealing PE having a small particle size, into a water-soluble CMC solution and Dry to manufacture.
  • the air permeability is derived from the porous nature of the PE sintered body, and the standard opening range is approximately 30 to 50 ⁇ m.
  • this PE sintered body is usually in the shape of a cylinder without one bottom and about 3.7 to 3.9 mm. It is formed thick.
  • the waterproof function is that CMC, which exists in the state of coating individual particle surface of PE sintered body, expands rapidly when it comes in contact with liquid body endocrine etc., and blocks the pores of PE sintered body. It is expressed. For this reason, some companies that manufacture and sell ventilated and waterproof filters in Europe and the United States refer to CMC used for filters as a self-sealing material. In addition, the bacterial aerosol removal rate in this filter is described as 99.9 to 99.98% in the pamphlet, despite the large pore diameter of the PE sintered body.
  • the first problem with PE sintered bodies and CMC filters that are currently used as standard aeration and waterproof filters for medical suction devices in Japan and the world at present is that they have a fundamental defect in long-term waterproofness. It is. This is due to the ease of water solubility of the CMC responsible for the waterproof function.
  • the second problem is the pore size and pathogen barrier property of the PE sintered body. This means that while the size of the bacteria is in the range of 0.8 to 10.0 ⁇ m and the size of the virus is in the range of 0.02 to 1.0 ⁇ m, as mentioned above, the pore diameter of the PE sintered body is of course the size of the virus and of the bacteria. It is a concern because it is much larger.
  • the first problem that is, the problem of the water solubility of CMC having a waterproof function
  • the PE sintered body / CMC filter When the PE sintered body / CMC filter is immersed in tap water for about 24 hours, it is easily observed that a considerable amount of liquefied CMC is eluted. This phenomenon clearly shows that the mixture of CMC solution and body endocrine products is directly linked to the serious problem that it easily leaks out from the outlet of the disposable bag or the like.
  • the waterproofing performance required for disposable bags etc. and the waterproofing function of the present PE sintered body / CMC filter are analyzed and compared in detail.
  • the first aspect relates to waterproofing for a long time. Although disposable bags after used are stored after being incinerated, due to the waterproofness of the bags, body endocrine substances including bacteria and viruses leak out of the bags during the storage period, resulting in hygiene for the environment, people, etc. It must be absolutely prevented to cause problems. For example, the risk of the disposable disposable bag etc. getting wet due to rain is easily imagined.
  • the second aspect relates to instantaneous waterproofness. The filter is submerged in body endocrine while being aspirated, and instantaneously mist or liquid body endocrine etc.
  • the PE sintered body / CMC filter can cope with the second instantaneous waterproof function, which has serious problems in long-term waterproofness.
  • the PE sintered body / CMC filter currently widely used in the world and in Japan lacks waterproofing for a long time.
  • the barrier property against the germs of the ventilation / waterproof filter has two cases: this barrier property against exhalation of the body, and the barrier property when body endocrine substances etc. leak from the ventilation / waterproof filter together with the CMC solution as mentioned above. Exists.
  • the barrier property of the filter for the first exhaled breath is generally determined using the bacterial aerosol removal rate (bacterial droplet collection efficiency test, JIS L1912) and the virus droplet collection efficiency test (according to JIS L1912) as indicators. is there.
  • the bacterial aerosol removal rate bacterial droplet collection efficiency test, JIS L1912
  • the virus droplet collection efficiency test according to JIS L1912
  • no established indicator is found in the barrier properties against pathogens when the liquid leaks from the filter.
  • the size of the pathogen and the size of the pore size of the PE sintered body are crucial.
  • the size of bacteria is 0.8 (S. aureus) to 10 ⁇ m
  • the pore diameter in the state where CMC is coated is unknown, but the pores of PE sintered body are approximately 30 to 50 ⁇ m It is.
  • the PE sintered body filter is nominally shown to have high barrier property in the bacterial aerosol removal rate test unless its pores have pores of 10 ⁇ m or less, the barrier property in the liquid is essentially bacteria. And no barrier function against viruses (pathogenic bacteria). And, in the PE sintered body / CMC filter, it is difficult to make the pores to 30 to 50 ⁇ m or less, due to the restriction on the sintering technology and the necessity of securing the air permeability of a certain amount or more. Therefore, it can not be said that the present PE sintered body / CMC filter basically has great concern for the bacteria and virus (pathogenic bacteria) barrier property.
  • the ventilation filter in the disposable bag etc. has an air flow of 20 L / min or more (JIST 7208-1 : 2012 electric suction device-safety requirement Article 59 (5) and low aspiration pressure, low flow rate type with a suction volume of 0.5 to 10 L / min (Attachment 5 of 7) at suction pressure of 20 kPa or less Be done.
  • Non-Patent Document 1 which is a standard PE sintered body and waterproof filter at present is 0.0391 L, and Non-Patent Document 2 has 0.0514 L It has become. For this reason, in order to obtain a predetermined ventilation amount in Non Patent Literatures 1 and 2, filter areas of 14.61 cm 2 (3.9 ⁇ 3.9 cm) and 11.12 cm 2 (3.4 ⁇ 3.4 cm), respectively. Is required.
  • the surface area of non-patent documents 1 and 2 which makes a cylindrical product with a standard product is about 16 cm 2 . It is considered that the surface area of the present PE sintered body / CMC filter is set to correspond to the high suction pressure / high flow rate type.
  • the object of the present invention is to solve the problem of long-term waterproofness which is a fundamental defect of the current PE sintered body / CMC filter, and at the same time, the ventilation performance comparable to the current product, and the bacteria and virus (pathogenic bacteria) barrier It is an object of the present invention to provide a molded article filter formed of a porous PTFE film (including a nonwoven fabric as a support) having elasticity and a charged nonwoven fabric, and a disposable bag or the like in which the filter is incorporated or externally installed.
  • PTFE film molded body filter As a result of various trial and error and grooving experiments for the development of new aeration and waterproofing filters, a PTFE film molded body filter using a porous polytetrafluoroethylene (PTFE) film realizes a new filter with bacteria barrier property I thought that I could do it.
  • PTFE polytetrafluoroethylene
  • the problem of instantaneous waterproofness and long-term waterproofing can be solved by the hydrophobic performance of the highest PTFE film in plastic materials, and the air permeability contrary to the waterproofness is that the maximum pore diameter of the film is a certain value or more Since air permeability equal to or higher than that of PE sintered body / CMC filter may be obtained, and the size of bacteria is approximately in the range of 0.8 to 10 ⁇ m, if the pore diameter can be controlled to 1 ⁇ m or less at maximum, In theory, most bacteria should be removable.
  • base molecular weight for example, standard specific gravity is 2.16 or more or less
  • presence or absence of copolymerization component base material shape (round bar, rolling, sheet)
  • stretching method uniaxial, biaxial
  • the air permeability of the PTFE film depends on the draw ratio, and in general, uniaxial stretching forms a fillet (fiber) extending in parallel with the node, and biaxial stretching reduces the node and fillet together.
  • ventilation and waterproofness are both improved by randomizing the direction of filling. It has been found that proper selection in consideration of the production method and structure thereof is crucial in the selection of the PTFE film.
  • Table 1 summarizes the relationship between single layer / lamination, uniaxial / biaxial, and ventilation / waterproof function.
  • the PTFE film In order to use the PTFE film in the air-permeable / water-proof filter incorporated in the disposable bag etc. of the medical aspirator, the PTFE integrally achieves the individual requirements of air permeability, water resistance and maximum pore size (bacterial barrier property) Experiments were conducted to determine if the film was present, and if so, how to balance these at high levels.
  • maximum pore diameter is in the range of 1 to 5 ⁇ m, with the same area (16 cm 2 ) as the current PE sintered body and CMC filter, JIST 7208-1: 2012 Motorized Aspirator-Safety It was confirmed that the required and sufficient ventilation volume defined by the high suction pressure and high flow type specified by the requirements and the low suction pressure and low flow type can be obtained.
  • the differential pressure condition that is the premise of the waterproofness is 60 kPa or less for the low suction pressure / low flow rate type and the medium suction pressure type, and it can be judged from this result that the waterproofness is sufficient. From these comprehensive results, it is found that the maximum pore diameter of the appropriately selected PTFE film is in the range of 1 to 5.0 ⁇ m, and at the same time the breathability, waterproofness and bacterial barrier properties required for disposable bags etc are satisfied. It is proved to be obtained. It should be noted that, unlike the CMC film, if there is no problem in instantaneous waterproofing, the PTFE film is waterproofed for a long time without causing any water leakage.
  • An adhesive can not be used for laminating the PTFE film and the three-dimensional shaped part 200, and both are joined by a method of heat-sealing them, and the airtightness of the heat-sealing part is sufficiently maintained under a reduced pressure of 35 kPa. I was able to confirm it.
  • the bonding part area of 4 sides can be taken large, and it can also bond with an adhesive.
  • a method of directly laminating the PTFE film on a three-dimensional shaped part and heating the hot plate from the upper side of the PTFE film is preferable.
  • Dust collection filters used in chemical factories etc. are classified into general filters, medium high performance filters, and ultra high performance filters according to collection efficiency, and the ultra high performance filters have target particle sizes of 0.3 ⁇ m or less (HEPA), 0.
  • the purpose is to remove dust of 1 ⁇ m or less (ULPA).
  • Nonwoven fabric and glass filter paper are used as materials.
  • the collection mechanism of the filter is classified as follows.
  • the sieve of (a) is the pore diameter of the filter material, and (c) the blocking is the particle diameter of the target particle diameter of 0.1 ⁇ or more, and the particles along the air flow come into contact with the surface of the filter material and collected. It is.
  • the diffusion of (d) occurs when the target particle size is 0.5 ⁇ m or less, and is a collection associated with the brown motion of the particles.
  • the static electricity of (e) is a mechanism in which particles having a target particle diameter of 0.05 to 1.0 ⁇ m are collected by the Coulomb force of static electricity possessed by the filter material.
  • the size of the virus is in the range of 0.02 (norovirus) to 1.0 ⁇ m.
  • the following three directions can be considered as measures for imparting pathogen barrier properties to a filter based on the above-described PTFE film or a laminated film of PTFE and non-woven fabric.
  • (1) Minimize the maximum pore diameter of the PTFE film to be a sieve.
  • (2) Apply static electricity to the PTFE film and use its coulomb force.
  • Electrostatic charge is applied to the non-woven fabric side of the laminated film of PTFE and non-woven fabric (or lamination of charged non-woven fabric), and the Coulomb force is utilized.
  • a PTFE film When a PTFE film is used as a ventilation / waterproof filter, as described in detail in [0025] to [0026], it is necessary to simultaneously satisfy a certain level of ventilation performance and water resistance performance. It is difficult to make it less than 2 to 1.0 ⁇ . Also, even if a pore size of 0.2 ⁇ m is used, it can not always be considered sufficient from the viewpoint of pathogen barrier properties.
  • the method of applying static electricity to the PTFE film itself is that the hydrophobicity of the PTFE film is lost and the waterproofness is lost by applying the static electricity, and the application is made when the PTFE film comes in contact with water such as internal drainage. It is meaningless because the static electricity is attenuated and the virus collection function is lost. Therefore, these methods are not effective.
  • the method of applying static electricity to the non-woven fabric side of the laminated film (or laminating the charged non-woven fabric) is theoretically possible sufficiently, and it is assumed that there is no great difficulty in the production of the molded filter, so detailed investigation went.
  • a mechanism to combine (a) and (e) is constructed.
  • the Coulomb force of electrostatics alone is capable of adsorbing 0.05 to 1.0 ⁇ m and a considerable part of the virus size, and this includes inertial collision collection of (b) and diffusion collection with Brownian movement of (d).
  • the exhaust port of the waste bag can be expected to have an effective barrier against pathogens in the virus size range of 1 ⁇ m or less.
  • the important condition is that the non-woven fabric to which static electricity is applied is not in contact with water such as body drainage, and conversely the PTFE film side exhibiting waterproofness is in contact with water such as body drainage. It is to arrange a laminated film.
  • a non-woven fabric is manufactured by using an engineering plastic such as polypropylene resin (PP) or nylon 66 resin as a raw material and charging the non-woven fabric by corona discharge or hydrocharging method.
  • the charge amount is preferably 2.0 ⁇ 10 ⁇ 10 coulomb / cm 2 or more in terms of surface charge density.
  • a meltblown method is desirable because an ultrafine fiber diameter can be obtained and thin production is possible, a spun bond method is also possible.
  • Non-patent Document 4 a mask using an electrostatic charge filter can be removed even with particles of 0.1 ⁇ m, and it is known to reduce the infective titer of the virus by 99.9999%. Therefore, although the quantitative difference is unclear from Table 3, the use of PTFE film, PP non-woven fabric, charged non-woven fabric laminated filter for the disposable bag etc. of the present invention makes it particularly infective and toxic like influenza virus, norovirus Can be expected to be effective in removing high virus.
  • the following can be mentioned as an effect in the case of using the molded article filter formed from the PTFE film according to the present invention as a breathable / waterproof / bacterial virus (pathogenic bacteria) barrier filter incorporated in a disposable bag or the like.
  • the aeration / waterproof / bacterial barrier filter of the present invention is completely waterproof, and is a fundamental defect of the present PE sintered body / CMC filter. It occurs when discarding and storing disposable bags etc. It is possible to suppress the leakage of the mixture of the CMC solution and the body endocrine substance etc. out of the bag, which is concerned.
  • the laminated film of the PTFE film / PP non-woven fabric, and the PTFE film / PP non-woven fabric / charged non-woven fabric showed extremely superior pathogen barrier properties as compared with the PE sintered body / CMC filter.
  • the PTFE film / PP non-woven fabric / charged non-woven fabric laminated filter can be expected to have high pathogen barrier properties not only to bacteria but also to highly infectious viruses. This makes it possible to provide a patient's environment, disposable bags with higher safety for humans, and the like.
  • FIG. 1 is a schematic block diagram of the basic system of the present medical aspirator.
  • FIG. 2A is a perspective view of a three-dimensional shaped component used in the disposable bag and the like according to the present invention (before bonding of the filter substrate).
  • FIG. 2B is a perspective view of a molded article filter (three-dimensionally shaped component after filter substrate bonding) used for a disposable bag and the like according to the present invention.
  • FIG. 3A is a perspective view of the ventilation component used for the disposable bag etc. based on this invention.
  • FIG. 3B is a perspective view of the ventilation part after attaching a three-dimensional part for use in the disposable bag etc. according to the present invention.
  • FIG. 4A is a perspective view of a flexible bag used for a disposable bag etc.
  • FIG. 4B is a perspective view of a disposable bag and the like after all of the ventilated part, the three-dimensionally shaped part, and the flexible bag according to the present invention are joined.
  • FIG. 5A is a cross-sectional view showing a disposable bag etc. according to the present invention housed in a rigid container.
  • FIG. 5B is a perspective view showing a rigid container containing the disposable bag and the like according to the present invention in a state in which the lid is opened.
  • the disposable bag etc. which make the molded part which has the ventilation and waterproof function formed using a PTFE film etc. into the integral product part can manufacture the type with various shape, a function, and a size.
  • representative embodiments of the present invention will be described.
  • FIG. 2A shows a three-dimensionally shaped component 200 that heat-seals the PTFE film 25 to the opening 21 later.
  • This shape uses polypropylene (PP) as a raw material and is manufactured by injection molding using a mold.
  • This three-dimensional shaped part has an opening 21 which is a region for heat-sealing a PTFE film or the like, a lattice rib 22 for supporting the PTFE film at the opening, and an internal cavity 23 which is a flow passage of passing air.
  • It has a fitting shape 24 for attachment to the molding shown in FIG. 3A.
  • one side, both sides, four sides, or four sides and a bottom face of a substantially rectangular molded component may be used as the opening.
  • the shape of the said three-dimensional shaped component can be various things, such as cylindrical shape and disk shape besides a rectangular parallelepiped.
  • Table 4 The open area in this example is shown in Table 4.
  • FIG. 2B shows a molded part 210 in a state in which a PTFE film or a laminate 25 of PTFE film / PP non-woven fabric / charged non-woven fabric is heat-sealed to the above-mentioned three-dimensional shaped component.
  • this molded part 210 is referred to as a "molded filter”.
  • the thickness of the PTFE film used in this example is in the range of 50 to 200 ⁇ m, and the maximum pore diameter is in the range of 0.2 to 5 ⁇ m.
  • the thickness containing PET nonwoven fabric was 300 micrometers or less (pore diameter can not be prescribed).
  • FIG. 3A shows the appearance of a molded manufactured vent component 300 inscribed in a film bag.
  • the aeration component 300 has a suction port 31 for joining the suction catheter 18 and its cap 32, a mounting shape 33 to a rigid container, and a fitting portion 34 with a fitting shape 24 of the PTFE film heat sealing solid shape component 200, And an exhaust port 35, and a joint portion 36 by heat fusion or the like with a film bag for storing body endocrine products and the like.
  • a vulcanized rubber is separately used for the outlet 37 of the suction port on the film bag side in order to prevent backflow of body endocrine products etc. stored in the film bag or their mist-like substances back into the suction pipe. Mounting the check valve 38 manufactured.
  • FIG. 3B shows a composite molded body 310 in which the PTFE filter of FIG. 2B which is heat-sealed is fitted and integrated with the vented part of FIG. 3A in an airtight state.
  • the integration it is possible to perform the integration to maintain the air tightness not by the fitting but by the thermal fusion of both.
  • FIG. 4A shows an example of a film bag for storing body endocrine substances and the like.
  • the film bag is generally formed by multilayer inflation molding using linear polyethylene (LLDPE), polyethylene terephthalate (PET) resin, and / or nylon resin (NY), and further an adhesive resin.
  • LLDPE linear polyethylene
  • PET polyethylene terephthalate
  • NY nylon resin
  • the film bag is composed of three layers, and the thickness is 30 ⁇ m for the outer layer (PET), 7 ⁇ m for the adhesive resin layer, and 120 ⁇ m for the inner layer (LLDPE).
  • the internal volume of a present Example is 1300 cc.
  • FIG. 4B shows a form in which the composite molded body 310 of FIG. 3B is inscribed and airtightly heat-sealed inside the upper end of the film bag of FIG. 4A.
  • a final product for a medical suction device configured from the above-described film bag 400 and the integrated composite molded body 310 using the three-dimensional shaped component 210 having the function of ventilation and waterproofing formed using the PTFE film Disposable bag 410 is completed.
  • the present embodiment shows an example in which the composite molded body 310 is inscribed in the bag, it may be jointed and joined to the outside of the film bag. Further, the mounting position of the composite molded body 310 to the film bag does not have to be at the upper end of the film bag 400, and may be at four sides of the bag or at a middle position of the side corner portions.
  • FIGS. 5A and 5B show the finally completed disposable bag attached to the rigid container 500.
  • FIG. FIG. 5B shows an example in which the composite molded body 310 is not a vertical type PTFE film three-dimensional shaped part as shown in FIG. 3B but a horizontal type.
  • a three-dimensional shaped part in which the PTFE film is heat-sealed that is, a molded, is used in order to use a detour exhaust system in which the rigid container is depressurized by the aspirator body and the interior of disposable bag etc.
  • the disposable bag or the like may be directly suctioned by the suction device main body to be decompressed.
  • the air filter in the disposable bag or the container and the shaped filter which is designed to pass the exhaled breath of the body are attached airtightly and the aspirator main body It is good also as a structure which connects the suction tube directly connected to this to the exit side of this molded object filter.
  • the molded product filter is provided in contact with the inside of the discharge port 15 of the rigid container or its lid, and the exhaust port 35 of the venting part 300 and the inlet of the molded product filter are connected by a suction tube and suctioned from the suction port 16 It is good also as composition.
  • the molded body filter may be provided somewhere on the suction tube.
  • the filter primary filter
  • the PTFE film / PP non-woven fabric or PTFE film according to the present invention A molded article filter incorporating a laminated filter of PP non-woven fabric and charged non-woven fabric may be used as a secondary bag connected downstream of a disposable bag or container. That is, the molded body filter may be connected between the rigid container 120 of FIG. 1 and the catheter 18 connecting the aspirator main body 130 so as to maintain airtightness from the outside air. As a result, higher pathogen barrier properties can be realized.

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  • Animal Behavior & Ethology (AREA)
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Abstract

Les filtres en CMC-PE compacts frittés, qui ont été classiquement utilisés dans des sacs ou des contenants souples jetables, fabriqués de sorte que la matière sécrétée dans le corps d'un patient puisse être aspirée, stockée, et mise au rebut lorsqu'une quantité de stockage fixe est atteinte, ont un défaut fondamental, à savoir le manque d'imperméabilité à l'eau à long terme en raison de leur hydrosolubilité élevée, et présentent un risque potentiel concernant les propriétés de barrière contre les agents pathogènes en raison de leur diamètre de pores élevé. L'invention concerne un sac ou un récipient souple jetable dans lequel est formé un filtre à corps moulé présentant une perméabilité à l'air qui est au moins équivalente à celle de filtres en CMC-PE compacts frittés, une imperméabilité à l'eau à court terme et à long terme, et une fonction de barrière contre les agents pathogènes améliorée en utilisant, en tant que matériau de base, un film de polytétrafluoroéthylène (PTFE) poreux ou un non-tissé en PTFE ayant une structure et un diamètre de pores définis, un stratifié d'un film de PTFE et d'un non-tissé de PP, ou un stratifié d'un film de PTFE, d'un non-tissé de PP et d'un non-tissé électrifié. Le sac ou récipient souple jetable est fabriqué en intégrant le filtre à corps moulé avec un sac en pellicule sous une forme incorporée ou circonscrite.
PCT/JP2017/016811 2016-04-27 2017-04-27 Filtre de piégeage des virus pour sac ou contenant jetable pour aspirateur médical WO2017188398A1 (fr)

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PCT/JP2016/063148 WO2017187544A1 (fr) 2016-04-27 2016-04-27 Filtre à corps moulé utilisant un film de ptfe, et sac ou contenant jetable pour aspirateur médical utilisant ledit filtre à corps moulé

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PCT/JP2017/016811 WO2017188398A1 (fr) 2016-04-27 2017-04-27 Filtre de piégeage des virus pour sac ou contenant jetable pour aspirateur médical

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019187403A1 (fr) * 2018-03-30 2019-10-03 グリーンプラ株式会社 Filtre de collecte de virus pour système d'aspirateur médical
CN113069600A (zh) * 2021-03-05 2021-07-06 黎春苟 一种肝胆胰外科手术用腹腔引流装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102363622B1 (ko) * 2018-12-05 2022-02-24 최대한 의료용 석션장치

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487606A (en) * 1983-01-31 1984-12-11 Becton, Dickinson And Company Suction canister with shut-off valve and smoke filter
GB2220357A (en) * 1988-05-28 1990-01-10 Smiths Industries Plc Medico-surgical containers
JPH0630995A (ja) * 1992-07-10 1994-02-08 Nippon Medical Supply Corp 通気針及びその製造法
JPH0963312A (ja) * 1995-06-13 1997-03-07 Nitto Denko Corp 通気管
JP2000158674A (ja) * 1998-11-30 2000-06-13 Nitto Denko Corp インクカートリッジ
JP2008132405A (ja) * 2006-11-27 2008-06-12 Nissan Motor Co Ltd 空気清浄用濾材及び車室内浄化用空気清浄フィルタ
JP2010227758A (ja) * 2009-03-26 2010-10-14 Toray Ind Inc 抗アレルゲン性難燃ろ材
JP2013220287A (ja) * 2012-04-19 2013-10-28 Toray Ind Inc 空気清浄機用集塵脱臭エアフィルターユニット
JP2014042538A (ja) * 2012-08-24 2014-03-13 Toray Ind Inc 濾材およびその製造方法
WO2015033940A1 (fr) * 2013-09-03 2015-03-12 株式会社メディネット Système d'acheminement de liquide
JP2015216994A (ja) * 2014-05-15 2015-12-07 株式会社セントラルユニ 吸引ボトル
JP3203434U (ja) * 2016-01-17 2016-03-31 株式会社三幸製作所 電動式可搬型吸引器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795448A (en) * 1986-08-08 1989-01-03 Haemonetics Corporation Suction collection system
JP2629084B2 (ja) * 1991-03-20 1997-07-09 株式会社クラレ 膜型人工肺の保存方法
US5645540A (en) * 1994-10-11 1997-07-08 Stryker Corporation Blood conservation system
JP2001129079A (ja) * 1999-11-02 2001-05-15 Kawasumi Lab Inc 透析用トランスデューサー保護フィルター及びその製造方法
JP2004097247A (ja) * 2002-09-04 2004-04-02 Terumo Corp 医療用容器、液体充填方法および液体収納体
JP2004097246A (ja) * 2002-09-04 2004-04-02 Terumo Corp 医療用容器
ATE456383T1 (de) * 2006-09-28 2010-02-15 Tyco Healthcare Tragbares wundtherapiesystem
IES20070653A2 (en) * 2007-09-13 2009-03-18 William Navan Improvements in and relating to infection control pillow products
JP6004443B2 (ja) * 2010-08-18 2016-10-05 ケーシーアイ ライセンシング インコーポレイテッド 複数の向きにできる減圧式液体収集キャニスター
CH706565A1 (de) * 2012-05-29 2013-11-29 Medela Holding Ag Drainagebehältervorrichtung und Saugbeuteleinheit.
JP2016508056A (ja) * 2013-01-03 2016-03-17 ケーシーアイ ライセンシング インコーポレイテッド 再チャージ式陰圧閉鎖療法

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487606A (en) * 1983-01-31 1984-12-11 Becton, Dickinson And Company Suction canister with shut-off valve and smoke filter
GB2220357A (en) * 1988-05-28 1990-01-10 Smiths Industries Plc Medico-surgical containers
JPH0630995A (ja) * 1992-07-10 1994-02-08 Nippon Medical Supply Corp 通気針及びその製造法
JPH0963312A (ja) * 1995-06-13 1997-03-07 Nitto Denko Corp 通気管
JP2000158674A (ja) * 1998-11-30 2000-06-13 Nitto Denko Corp インクカートリッジ
JP2008132405A (ja) * 2006-11-27 2008-06-12 Nissan Motor Co Ltd 空気清浄用濾材及び車室内浄化用空気清浄フィルタ
JP2010227758A (ja) * 2009-03-26 2010-10-14 Toray Ind Inc 抗アレルゲン性難燃ろ材
JP2013220287A (ja) * 2012-04-19 2013-10-28 Toray Ind Inc 空気清浄機用集塵脱臭エアフィルターユニット
JP2014042538A (ja) * 2012-08-24 2014-03-13 Toray Ind Inc 濾材およびその製造方法
WO2015033940A1 (fr) * 2013-09-03 2015-03-12 株式会社メディネット Système d'acheminement de liquide
JP2015216994A (ja) * 2014-05-15 2015-12-07 株式会社セントラルユニ 吸引ボトル
JP3203434U (ja) * 2016-01-17 2016-03-31 株式会社三幸製作所 電動式可搬型吸引器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019187403A1 (fr) * 2018-03-30 2019-10-03 グリーンプラ株式会社 Filtre de collecte de virus pour système d'aspirateur médical
CN111936176A (zh) * 2018-03-30 2020-11-13 格林普拉株式会社 医疗用吸引器系统用病毒捕集性过滤器
JPWO2019187403A1 (ja) * 2018-03-30 2021-01-07 グリーンプラ株式会社 医療用吸引器システム用ウイルス捕集性フィルター
CN111936176B (zh) * 2018-03-30 2023-09-12 Gpf有限公司 医疗用吸引器系统用病毒捕集性过滤器
CN113069600A (zh) * 2021-03-05 2021-07-06 黎春苟 一种肝胆胰外科手术用腹腔引流装置

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JP2022010088A (ja) 2022-01-14
JP7055379B2 (ja) 2022-04-18

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