Auxiliary equipment for multi-component liquid composition preparation kit

Abstract

To provide an auxiliary tool that is repeatedly usable and assists in outflow operation and application operation when a kit is used in which a plurality of middle bags having a liquid drug encapsulated therein are stored in an outer bag, the kit configured such that a multi-component system liquid composition can be applied with an applicator by the outflow operation performed to apply a pressing force to the outer bag to cause the liquid drug to flow out from all the middle bags into the outer bag to prepare the multi-component system liquid composition.SOLUTION: An auxiliary tool includes a holder that can hold the kit detachably in a predetermined position and a pressing arm. In the auxiliary tool, a connection mechanism connects the pressing arm and the holder, the pressing arm can rotate around the vicinity of a connection part, and a predetermined region of an outer bag of the kit held in the predetermined position can be selectively pressed by rotating the pressing arm.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an auxiliary tool for assisting an operation when using a kit for preparing a multi-component liquid composition such as a dental adhesive. [Background technology]

[0002] Dental materials such as composite resins and composite resin-type resin cements (hereinafter sometimes abbreviated as "CR, etc."), which are commonly used in dental treatment, have almost no adhesiveness to tooth structure by themselves. For this reason, when performing treatment (tooth restoration), in order to firmly bond the hardened material such as CR to the tooth structure, it is necessary to apply a dental adhesive (also called a bonding material) to the tooth surface using an applicator before filling or pressing with CR, etc.

[0003] Dental adhesives generally contain polymerizable monomers, including polymerizable monomers having an acidic group, and a polymerization initiator for polymerizing and curing the polymerizable monomers. As the polymerization initiator, a chemical polymerization initiator that functions without the need for light irradiation or heating may be used. The chemical polymerization initiator contains a combination of multiple components, such as a reducing agent and an oxidizing agent, which can react immediately upon contact, and therefore must be stored in two or more portions. For this reason, dental adhesives using chemical polymerization initiators are generally prepared by appropriately dividing the polymerizable monomer component in accordance with the division of the chemical polymerization initiator component, mixing the two components, and storing them as multiple liquid compositions, and mixing these divided liquid compositions when used. In addition, kits (in the present invention, a kit means a product in which two or more agents are combined into one product for the purpose of reducing the burden during preparation and preventing contamination and foreign matter from entering) and jigs for facilitating such storage, preparation, and application (using an applicator) are also known.

[0004] For example, Patent Document 1 describes such a kit as "a synthetic resin package containing at least one bag which contains dental liquid and which, when pressed, opens one edge of the bag and allows the dental liquid to flow out through the opened edge, the two side edges and the bottom edge are entirely closed, and an applicator insertion section and a bag storage section which are adjacent to each other in the lateral direction are defined, the top edge is at least partially closed at a portion corresponding to the bag storage section but is open at a portion corresponding to the applicator insertion section, the bag is positioned in the bag storage section with the one edge facing downward, and by pressing the bag through the package, the one edge of the bag is opened and the dental liquid flows from within the bag through the one edge to a lower portion of the bag storage section and flows to the lower portion of the applicator insertion section, and the dental liquid can be applied to the tip of the applicator by inserting an applicator into the applicator insertion section through the open top edge."

[0005] Furthermore, Patent Document 2 describes "a kit for storing components of a multi-component liquid composition that exhibits a predetermined function as two or more liquid agents and for preparing the multi-component liquid composition at the time of use by mixing the packaged liquid agents, the kit comprising: a composite liquid package having a plurality of liquid agent storage sections and a connecting section, wherein all of the plurality of liquid agent storage sections are connected to each other via the connecting sections to form an integrated body; and an outer bag that fixes the composite liquid package therein and airtightly houses the composite liquid package, the outer bag having a liquid reservoir space that is capable of holding all of the liquid agent that flows out when a pressing force is applied to the liquid agent held in the liquid agent storage section of the composite liquid package fixed and housed therein, causing the liquid agent to flow out from one end of the liquid agent storage section, without causing the liquid agent to come into contact with the composite liquid package." According to Patent Document 2, the use of this kit makes it possible to solve the problem with the synthetic resin packaging body described in Patent Document 1, namely, the problem that when pressing the bag body to cause liquid to flow out to the bottom of the packaging body due to a portion of the other end edge not being closed, liquid may accidentally splash out of the packaging body.

[0006] Furthermore, Patent Document 3 describes a synthetic resin container used when applying dental liquid to the tip of an applicator to an affected area, the container having a bottom wall and a side wall extending upward from the bottom wall that defines a space with an open top, the space having a package storage section and an applicator insertion section that are located adjacent to each other in the horizontal direction, the package storage section storing a package containing dental liquid, and the side wall being pressed to apply a compressive force to the package, thereby discharging the dental liquid contained in the package into the space, and the dental liquid can be applied to the tip of the applicator by inserting the applicator into the applicator insertion section. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] International Publication No. 2016 / 104406 Brochure [Patent Document 2] International Publication No. 2020 / 158238 Brochure [Patent Document 3] JP 2016-055039 A Summary of the Invention [Problem to be solved by the invention]

[0008] The kit described in Patent Document 2 can be used as follows if a weakened line 44 is formed as shown in Fig. 1. That is, first, the front and back walls of the outer bag 3 are pinched with two fingers to press the outer bag 3, causing the liquid agent to flow out of the composite liquid agent package into the liquid storage space, and then the outer bag 3 is broken along the weakened line 44 from the notch 46 to remove the upper part, forming an applicator insertion opening 48. Then, the outer bag 3 is held with one hand, the applicator 50 is held with the other hand, and the applicator 50 is inserted into the outer bag 3 through the applicator insertion opening 48 to deposit the liquid agent stored in the liquid holding portion 54, and then the dental adhesive composition can be applied to the required site of the patient's tooth to be treated. Thus, the above-mentioned kit is convenient in that it not only saves the labor of dispensing medicine, but also eliminates the risk of the liquid being splashed. However, the "flowing operation" of pressing with a finger to make the liquid flow out of the composite liquid packaging can be time-consuming due to differences in the way force is applied or the part pressed is not aligned, and it can be inconvenient because both hands are occupied when applying the liquid.

[0009] On the other hand, if the composite liquid package described in Patent Document 2 is used as it is (without being packaged in an outer bag to make a kit) and is housed in the package housing of the container disclosed in Patent Document 3, and the side wall of the container is pressed, the outflow operation can be performed relatively easily, and furthermore, the dental adhesive can be applied (spread) with one hand. However, in this case, since the composite liquid package is pressed with the entire back surface of the side wall of the container, the pressing force is dispersed, and the outflow operation can be time-consuming. In addition, the remaining dental adhesive adheres after use, so the container cannot be used repeatedly.

[0010] Therefore, the present invention aims to provide an auxiliary device that takes advantage of the advantages of the kit described in Patent Document 2, enables the flow-out operation to be performed simply and reliably, and enables the application operation to be performed with one hand, and is capable of being used repeatedly. [Means for solving the problem]

[0011] The present invention solves the above problems, and a first aspect of the present invention is husbandand an outer bag having a flat bag with one end and the other end, the two main surfaces of which are substantially rectangular in shape and have the same shape on the front and back sides, and an outer bag having a bag-accommodating space and a liquid-retaining space therein; , many The components of the component-based liquid composition are divided and held in two or more liquid formulations, and the liquid formulations are allowed to flow out from one end of each bag by applying a pressing force to the liquid formulations held inside the bag. a pressure region is defined at a corresponding predetermined position on one main surface and the other main surface which are two main surfaces on the front and back of the outer bag, and the two or more bags are arranged so that the liquid agent flows out from one end of all of the bags by pressing the pressure region of the outer bag, with the one end and the other end facing the one end side and the other end side of the outer bag, respectively, and the other end of all of the bags are overlapped and sandwiched between the other end on the one main surface side and the other end on the other main surface side, and fixed and airtightly contained in the bag containing space; The liquid reservoir space is From the two or more bags A space capable of retaining the spilled liquid agent without causing it to come into contact with the two or more bags. An auxiliary tool for assisting an operation when using a multi-component liquid composition preparation kit, comprising: A support portion having a receiving surface and a first clamping portion; and The outer bag can be detachably held in a predetermined position in an upright state with one end of the outer bag facing downward. an outer bag retention mechanism; and Holder part; and The above A pressing arm portion is connected to the holder portion and is rotatable around the vicinity of the connecting portion; When the auxiliary device is self-supporting on a horizontal surface and the outer bag is held at a predetermined position in the holder section, the direction in which one main surface of the outer bag faces is defined as the forward direction, the direction parallel to the horizontal plane along which the bottom side of the rectangle forming the shape of the one main surface extends is defined as the horizontal axis direction, and the vertical direction is defined as the vertical axis direction. In the support portion, the receiving surface is a plane having an area capable of pressing at least a major portion of a pressed area on the other main surface of the outer bag held at a predetermined position of the holder portion, and is disposed so as to face the pressed area, and the first clamping portion is disposed on the rear side and below, the pressing arm portion includes: an arm body having a second clamping portion and a pressing force application surface; and a connecting mechanism that is disposed in one end region of the arm body, connects the arm body to the top of the support portion or its periphery, and has a hinge structure that allows the arm body to rotate at least a predetermined angle around an axis in the horizontal axis direction near the connecting portion as a rotation axis; When the angle on the front side between the longitudinal direction of the arm body and the vertical direction passing through the rotation axis is defined as an interior angle, and the direction that is forward when the interior angle is 0° is defined as the surface side of the arm body, the second clamping portion is disposed on the other end of the arm body or on the surface side thereof in the vicinity thereof, the pressing force application surface is a flat surface having an area capable of pressing at least a major portion of a pressed area on one main surface of an outer bag held at a predetermined position in the holder portion, and the pressing force application surface is disposed on the back side of the arm body at a position capable of contacting the pressed area and pressing the pressed area when the arm body is rotated in a direction that reduces the interior angle between the first clamping portion and the second clamping portion. The present invention is an auxiliary tool for a multi-component liquid composition preparation kit.

[0012] In the above-mentioned auxiliary tool for a multi-component liquid composition preparation kit (hereinafter also referred to as the "auxiliary tool of the present invention"), it is preferable that the holder part to which the pressing arm part is connected is fixed to the upper part, and the height direction of the holder part is made perpendicular or approximately perpendicular to the horizontal plane, so that the auxiliary tool can stand on its own.

[0014] and, Auxiliary device of the present invention In ,beforeThe outer bag holding mechanism has a structure in which the upper groove rail and the lower groove rail are arranged to extend in the horizontal direction in front of the support pillar with the groove openings facing each other and spaced apart from each other in the vertical direction, so that the other end and one end of the outer bag can be inserted into the horizontal groove openings exposed on the end faces of one ends of the upper groove rail and the lower groove rail, respectively, in an upright state, allowing the outer bag to slide freely back and forth within the grooves, and a stopper is provided in the groove on the other end side of at least one of the groove rails to hold the outer bag in a predetermined position. Is It is preferable.

[0015] Also, The first clamping portion and the second clamping portion Both Press with your fingers and rotate the arm body. Press It is possible to apply force. It is preferable that In the preferred embodiment, It is preferable that the distance between the bottom surfaces of the grooves of the upper groove rail and the lower groove rail in the outer bag holding mechanism smoothly decreases from one end side to the other end side so that at one end face it is at least a length equivalent to the height of the outer bag and at the other end face it is shorter than that length, and that a stress is generated in the outer bag held in a predetermined position by the outer bag holding mechanism such that the spacing in the front-to-rear direction between one main surface and the other main surface is widened.

[0016] Furthermore, in the auxiliary device of the present invention, in the multi-component liquid composition preparation kit, the two or more bag bodies are flat bags, the width of the flat bag constituting the outer bag is longer than the width of the bag body by a predetermined length, the two or more bag bodies are fixed inside the outer bag toward one side end of the outer bag, so that an applicator insertion space adjacent to the bag body accommodating space is provided at the other end side of the liquid collection space on the other side end side of the outer bag, and a weakened line is formed on one main surface and the other main surface of the outer bag for forming an applicator insertion opening by cutting and removing a removal portion consisting of a part of the other end side of the area covering the applicator insertion space, and it is particularly preferable that the support portion, the holder portion and the pressing arm portion are configured so that when the outer bag is held in a predetermined position in the holder portion, the weakened line formed in the outer bag is exposed, and the removal portion can be cut along the weakened line while the outer bag is held in the predetermined position.

[0017] The auxiliary tool of the present invention is particularly suitable as an auxiliary tool for a kit for preparing a dental adhesive using a chemical polymerization initiator. Effect of the Invention

[0018] The auxiliary device of the present invention makes it possible to easily and reliably perform the outflow operation when using a multi-component liquid composition preparation kit, such as the kit described in Patent Document 2, in which multiple bags from which the liquid held inside will flow out when pressed are held inside a sealed outer bag, and further makes it possible not only to perform the application operation with one hand, but also to use the device repeatedly. [Brief description of the drawings]

[0019] [Figure 1] This figure is a schematic diagram showing the kit disclosed in Patent Document 2 and how to use the kit, and corresponds to Figures 6 and 10 of Patent Document 2. [Diagram 2]The figure shows (A) an oblique view and (B) a XX' cross-sectional view of a multi-component liquid composition preparation kit suitable for use with the auxiliary device of the present invention. [Diagram 3] This figure shows (A) a side view and (B) a front view of a representative auxiliary device of the present invention. In the front view, the pressing arm part is shown by a dotted line to make it easier to understand the holding state of the multi-component liquid composition preparation kit (outer bag). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, the multi-component liquid composition preparation kit (hereinafter also referred to as "the kit") for which the auxiliary device of the present invention is used and the auxiliary device of the present invention will be described in detail with reference to the drawings.

[0021] In this specification, unless otherwise specified, the expression "x to y" using the numerical values ​​x and y means "greater than or equal to x and less than or equal to y." In such an expression, when a unit is added only to the numerical value y, the unit is also applied to the numerical value x. In addition, in this specification, the term "(meth)acrylate" means both "acrylate" and "methacrylate," and the term "(meth)acryloyl" means both "acryloyl" and "methacryloyl."

[0022] 1. This kit The multi-component liquid composition preparation kit (this kit) for which the auxiliary device of the present invention is used is not particularly different from the kit disclosed in Patent Document 2. Hereinafter, this kit 10 will be described with reference to Figs. 1 and 2.

[0023] As shown in FIG. 2, the kit 10 includes two or more bags 20; each having one end 21 and the other end 22 and substantially the same shape, and an outer bag 30; which is a flat bag 33 having one end 31 and the other end 32 and has two main surfaces 34 of substantially the same rectangular shape. The outer bag 30 has a bag accommodation space 36 and a liquid storage space 37 therein, and the two or more bags 20 are fixed and airtightly accommodated in the bag accommodation space 36. A liquid agent 23 is enclosed and held inside each of the two or more bags 20. The liquid agent 23 is enclosed in the bag by applying a pressing force to the liquid agent 23 held inside each bag, so that the liquid agent 23 flows out from the one end 21. Regarding the liquid agent 23, each liquid agent 23 held inside each bag is a multi-component liquid composition having a predetermined function, divided into two or more (specifically, the number of bags), and the multi-component liquid composition can be prepared by flowing all the liquid agents 23 held in the two or more bags into the liquid pooling space 37 and mixing them. The liquid pooling space 37 is a space that can hold the (all) liquid agent 23 that flows out without contacting the two or more bags 20 when a pressing force is applied to the liquid agent 23 held inside the two or more bags 20 contained in the bag-containing space 36 by pressing the outer bag 30 to cause the liquid agent 23 to flow out of (all) the bags 20. The (all) liquid agent 23 that flows out is stored in the liquid pooling space 37, so that the preparation of the multi-component liquid composition and the application operation described below can be performed without being hindered by the bags 20.

[0024] In the present kit 10 shown in FIG. 2, the two main surfaces 34 of the outer bag 30, that is, the one main surface 34a and the other main surface 34b facing each other, are defined with pressurized areas 35a, b at predetermined positions corresponding to each other. The pressurized areas 35(a, b) are areas determined based on the shape, size and amount of the liquid medicine 23 held therein of the two or more bags 20 (flat bags 24), and the position of the bag body storage space 36 (or the fixed position of the two or more bags 20), and are defined as areas where the liquid medicine 23 can be reliably and efficiently flowed out of one end (one end) 21 of the bag body 20 by pressing the areas on the outer bag 30. Therefore, the pressurized areas 35a, b are defined at substantially the same positions on the main surfaces 34 of the outer bag 30 (i.e., the one main surface 34a and the other main surface side 34b). The area printed with "Push here" in FIG. 2(A) corresponds to the pressurized area 35.

[0025] In the present kit 10 shown in FIG. 2, each of the two or more bag bodies 20 is a flat bag 24 having substantially the same rectangular shape, and the two or more bag bodies 20 (flat bags 24) are arranged so that the liquid agent 23 flows out from one end 21 of all the bag bodies 20 (flat bags 24) by pressing the pressed areas 35a, b of the outer bag 30, with the one end 21 and the other end 22 facing the one end 31 side and the other end 32 side of the outer bag 30, respectively, and the other end 22 of all the bag bodies 20 (flat bags 24) are stacked and sandwiched between the other end 32a on the one main surface 34a side and the other end 32b on the other main surface side 34b, and fixed and airtightly contained within the bag body storage space 36.

[0026] The size of the bag 20 and the outer bag 30 may be appropriately determined according to the amount of the liquid agent 23 to be held, but when the multi-component liquid composition is a dental adhesive, the amount of the liquid agent 23 held in each bag 20 is usually about 0.03 to 0.1 ml since it is disposable, and the size of the bag 20 (flat bag 24) is about 16 to 40 mm in length and about 5 to 15 mm in width. The size of the outer bag 30 is about 28 to 72 mm in length and about 12 to 36 mm in width, and the area of ​​the pressed region 35 is 240 to 400 mm. 2 That's about it.

[0027] The width of the flat bag 33 constituting the outer bag 30 is longer than the width of the bag body 20 (flat bag 24) by a predetermined length, and by moving the two or more bag bodies 20 toward one side end 31 toward the inside of the outer bag and fixing them, an applicator insertion space 38 adjacent to the bag body accommodating space 36 is provided on the other end side of the liquid pooling space 37 of the outer bag 30. A weakened line: WL is formed on one main surface 34a and the other main surface 34b of the outer bag 30 to form an applicator insertion opening (not shown) by cutting out and removing a removal portion 39 consisting of a part of the other end side of the area covering the applicator insertion space 38. In the present kit 10 shown in Fig. 2, the fixing positions of two or more bags 20 or the position of the bag accommodation space 36 is set to be approximately the center of the outer bag 30, and when viewed from the one main surface 34a side, it corresponds to the multi-component liquid composition preparation kit 1 shown in Fig. 1. That is, each package, one end, the other end, and the liquid in the composite liquid agent packaging 2 in Fig. 1 respectively correspond to the bag 20 (flat bag 24), one end, the other end, and the liquid agent 23 in the present kit 10, and the composite liquid agent packaging 2 corresponds to the other end 22 of all the bags 20 in the present kit 10 stacked and integrated. In addition, the outer bag 3, the lower end seal part (one end) 40, the upper end seal part (other end) 42, and the weakened line 44 in Fig. 1 respectively correspond to the outer bag 30 (flat bag 33), one end 31, the other end 32, and the weakened line WL in the present kit 10 in Fig. 2.

[0028] A typical example of the multi-component liquid composition is a so-called two-liquid mixed dental adhesive containing a polymerizable monomer including an acidic group-containing polymerizable monomer and a polymerizable monomer not having an acidic group, a chemical polymerization initiator, and a water-soluble organic solvent and / or water as main components. Here, the following components can be preferably used as each component of the two-liquid mixed dental adhesive.

[0029] That is, examples of the acidic group-containing polymerizable monomer include 2-(meth)acryloyloxyethyl dihydrogen phosphate, 10-(meth)acryloyloxydecyl dihydrogen phosphate, di[2-(meth)acryloyloxyethyl]hydrogen phosphate, di[10-(meth)acryloyloxydecyl]hydrogen phosphate, 4-(meth)acryloxyethyl trimellitic acid, 11-(meth)acryloyloxy-1,1-undecanedicarboxylic acid, 1,4-di(meth)acryloyloxypi Compounds having at least one acidic group, such as a phosphoric acid group, a carboxy group, a sulfonic acid group or a phosphonic acid group, and at least one polymerizable unsaturated group in one molecule, such as romellitic acid, 2-(meth)acryloyloxyethyl maleic acid, 2-(meth)acryloyloxyethyl phthalic acid, 2-(meth)acryloyloxyethylhexahydrophthalic acid, 2-methacrylamide-2-methylpropanesulfonic acid, 2-acrylamide-2-methylpropanesulfonic acid, p-vinylbenzenesulfonic acid, and vinylsulfonic acid, can be suitably used.

[0030] Examples of polymerizable monomers having no acidic group include 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, glycerol di(meth)acrylate, 2,2'-bis{4-[3-(meth)acryloyloxy-2-hydroxypropoxy]phenyl}propane, 2,2'-bis[4-(meth)acryloyloxyphenyl]propane, 2,2'-bis[4-(meth)acryloyloxypolyethoxyphenyl]propane, 2,2'-bis[4-(meth)acryloyloxydiethoxyphenyl]propane, 2,2'-bis[4-(meth)acryloyloxytetraethoxyphenyl]propane, 2,2'- Bis[4-(meth)acryloyloxypentaethoxyphenyl]propane, 2,2'-bis[4-(meth)acryloyloxydipropoxyphenyl]propane, 2,2'-bis[4-(meth)acryloyloxyethoxyethoxyphenyl]propane, 2-[4-(meth)acryloyloxydiethoxyphenyl]-2-[4-(meth)acryloyloxytriethoxyphenyl]propane, 2-[4-(meth)acryloyloxydipropoxyphenyl]-2-[4-(meth)acryloyloxytriethoxyphenyl]propane, 2,2-bis[4-(meth)acryloyloxypropoxyphenyl]propane, and the like can be suitably used.

[0031] As the water-soluble organic solvent, acetone, methanol, ethanol, n-propanol, isopropyl alcohol, methyl ethyl ketone, etc. can be suitably used.

[0032] As the chemical polymerization initiator, an appropriate combination of an oxidizing agent, a reducing agent, and a polymerization accelerator can be suitably used. As the oxidizing agent, organic peroxides such as benzoyl peroxide, parachlorobenzoyl peroxide, 2,4-dichlorobenzoyl peroxide, acetyl peroxide, lauroyl peroxide, tertiary butyl peroxide, cumene hydroperoxide, 2,5-dimethylhexane, 2,5-dihydroperoxide, methyl ethyl ketone peroxide, and tertiary butyl peroxybenzoate, and azo compounds such as azobisisobutyronitrile, methyl azobisisobutyrate, and azobiscyanovaleric acid can be suitably used. In addition, as the reducing agent, amine compounds such as N,N'-dimethyl-p-toluidine, N,N'-dimethylaniline, N'-β-hydroxyethyl-aniline, N,N'-di(β-hydroxyethyl)-aniline, N,N'-di(β-hydroxyethyl)-p-toluidine, N-methyl-aniline, and N-methyl-p-toluidine can be preferably used. Furthermore, as the polymerization accelerator, vanadium compounds, copper compounds, sulfinates, borate compounds, thiourea compounds, and the like can be preferably used. Note that any chemical polymerization initiator system is designed to function as an initiator when all components are present, and the combination of each component when packaging is appropriately determined in consideration of storage stability according to the type of liquid agent and the specific compound used. For example, borate, which is classified as a polymerization accelerator in the above, also functions as a reducing agent under certain conditions, but it can also be stored in the presence of an oxidizing agent in the absence of an acidic compound (unless it is under acidic conditions).

[0033] From the viewpoint of the manufacturing efficiency of the kit 10, it is preferable that the two or more bags 20 are previously stacked and integrated at the other end 22 of all the bags 20 (flat bags 24) to form a composite liquid agent package. The above-mentioned composite liquid agent package can be suitably produced by a method including: (I) a step of preparing a plurality of individual packages for a liquid agent-containing portion, the individual packages being configured to hold a liquid agent airtight and liquidtight inside a bag body formed of a flat pillow bag having a lower end heat-sealed portion as one end (one end) and an upper end heat-sealed portion as the other end (other end) by vertical pillow packaging using a heat-sealable laminate film or heat-sealable laminate sheet including at least an inner layer made of a sealant material and an outer layer made of an exterior material; and (II) a joining step of overlapping all of the other ends (other ends) of the plurality of individual packages for a liquid agent-containing portion prepared in the step of preparing the individual packages for a liquid agent-containing portion, and heating and pressurizing the overlapping region where all of the other ends are overlapped, thereby extruding a part of the sealant material constituting the inner layer in the overlapping region of each of the other ends outward from an end of the outer layer of each of the other ends, while fusing the extruded extended sealant materials to each other.

[0034] The inner layer of the heat-sealable laminated film (or heat-sealable laminated sheet) is composed of a mixture of a resin having high heat fusion (heat-sealing property) as a sealant material, for example, a polymer alloy mainly composed of an ionomer of a copolymer of ethylene and methacrylic acid acrylate, and polyethylene, and the inner layer (sealant material layer) usually has a thickness of 10 to 100 μm, preferably 30 to 80 μm. The outer layer 12 is composed of a resin having low heat fusion (not having heat-sealing property), an inorganic material, or a composite of both, and depending on the liquid agent contained inside, a material that imparts functions such as oxygen gas shielding (oxygen gas impermeability) and ultraviolet ray shielding, a material that enhances transparency so that the presence of the contents can be confirmed, and a material that enhances printability on the outer surface are appropriately selected for the purpose of enhancing the storage stability, etc. In addition, an intermediate layer can be provided between the inner layer and the outer layer to further enhance functionality.

[0035] The outer bag 30 is also a pillow flat bag made of a heat-sealable laminate film (or a heat-sealable laminate sheet) including at least an inner layer made of a sealant material and an outer layer made of an exterior material, and is made into a bag body by heat-welding (heat sealing) both side edges of a rectangular heat-sealable laminate film (or a heat-sealable laminate sheet) to each other to form a back seal part to form a cylindrical shape, and heat-welding (heat sealing) one end (one end edge) and the other end (the other end edge) to each other. The heat-sealable laminate film (or heat-sealable laminate sheet) basically has the same structure as the heat-sealable laminate film constituting the bag body 20, and the same heat-sealing material is used as the heat-sealing laminate film. However, since it is preferable that the outer bag 30 is transparent overall in order to make it easier to check the position of the liquid agent that has flowed out due to pressure, it is preferable to use, as the exterior material constituting the outer layer, a film or sheet of an olefin polymer such as polyethylene, polypropylene, polybutylene, and a copolymer obtained by copolymerizing at least two or more types of olefin monomers selected from ethylene, propylene, butene, etc.

[0036] In the present kit 10, the outer bag 30 is sealed on all four sides to be in a hermetically sealed state. At this time, air (atmosphere) is usually enclosed in the space between the outer bag 3 and the two or more bags 20. In order to apply a pressing force to the liquid agent held in the two or more bags 20 (flat bags 24) to facilitate the liquid agent flowing out of one end (one end) of each liquid agent storage section, it is preferable to adjust the amount of air enclosed in the space so that the volume of the space is 1 to 70%, particularly 5 to 40%, of the maximum volume of the space (the volume obtained by subtracting the volume occupied by the two or more bags 20 contained therein from the volume when the outer bag 30 is filled with as much air as possible under atmospheric pressure or under a slight pressure that does not damage the outer bag 30).

[0037] When the kit 10 of the present invention is used, first, the outer bag 30 is pressed, and a pressing force is applied to all of the liquids 23 filled in the two or more bags 20, which are then caused to flow out and mixed in the liquid collection space 37 to prepare the dental adhesive, which is the desired liquid composition. Next, the outer bag 30 is broken from the notch along the weakened line WL, 38: the removal portion 39 above the weakened line WL of the film or sheet covering the applicator insertion space is removed to open the applicator insertion opening (this operation is also called the "applicator insertion opening forming operation"). From there, as shown in the right diagram of Fig. 1, an applicator 50 having a long and thin rod-shaped body 52 and a liquid holding portion 54 disposed at its tip is inserted, and the liquid holding portion 54 is immersed in the dental adhesive and then pulled out to apply the dental adhesive to the desired site of the patient's tooth to be treated, thus performing the application operation.

[0038] 2. Auxiliary device of the present invention Hereinafter, the auxiliary device for the multi-component liquid composition preparation kit of the present invention will be described with reference to FIG.

[0039] 3 shows an auxiliary tool 100 of the present invention, which is an example of a preferred embodiment of the auxiliary tool of the present invention, and includes a holder part 200 that can hold the outer bag 30 in a detachable manner in a predetermined position in an upright state with one end part 31 of the outer bag 30 facing downward; a pressing arm part 300 that is connected to the holder part 200 and can rotate around the vicinity of the connecting part; and a base part 400 that fixes the holder part 200 connected to the pressing arm part 300 to an upper part and makes the height direction of the holder part 200 perpendicular or approximately perpendicular to the horizontal plane so that the auxiliary tool 100 can stand on its own. By rotating the pressing arm part 300, the outer bag 30 held in a predetermined position of the holder part 200 is pressed, causing the liquid agent 23 to flow out into the liquid collecting space 37.

[0040] The material constituting the auxiliary instrument 100 of the present invention is usually resin or metal, but when the multi-component liquid composition preparation kit is a dental adhesive, its size is relatively small as described above, and therefore the auxiliary instrument 100 of the present invention is also quite compact in size. Therefore, from the standpoint of cost and productivity, it is preferable to mold it as a single piece using a plastic resin such as polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), polybutadiene terephthalate (PBT), acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS resin), and polyamide (PA).

[0041] The auxiliary device 100 of the present invention can hold the outer bag 30 of the present kit 10 in a "predetermined position" in a state in which one end 31 of the outer bag 30 faces downward in a detachable manner on the holder part 200, so that the dental adhesive (prepared with the present kit) can be applied with one hand using an applicator. The auxiliary device 100 of the present invention not only has the function of a so-called stand, but also has a major feature in that it can reliably apply a pressing force from both the pressed area 35a and the pressed area 35b of the present kit 10 (outer bag 30) by holding the outer bag 30 in a "predetermined position" in the above-mentioned state and then rotating the pressing arm part 300. This feature makes it possible to perform the above-mentioned outflow operation simply and reliably. Furthermore, the prepared multi-component liquid composition such as a dental adhesive remains contained in the outer bag and does not come into direct contact with the auxiliary device 100 of the present invention, so the auxiliary device 100 of the present invention can be used repeatedly.

[0042] Note that the holder part 200 and the pressing arm part 300 are connected, and the pressing arm part 300 is rotatable around the vicinity of the connecting part, so that the relative positional relationship between the holder part 200 and the pressing arm part 300 is fixed. Therefore, the relative positional relationship between these and the outer bag 30 is determined by the holding positions in the holder part 200. Therefore, the above-mentioned "predetermined position" is synonymous with the predetermined position in the holder part 200.

[0043] In order for the auxiliary device 100 of the present invention to reliably perform the above functions, the holder part 200 and the pressing arm part 300 preferably have a configuration as shown in Fig. 3. Hereinafter, the holder part 200 and the pressing arm part 300 of the auxiliary device 100 of the present invention will be described in Fig. 3, with the auxiliary tool 100 being freestanding on a horizontal surface and the outer bag 30 being held at a predetermined position on the holder part 200, the direction in which one main surface 34a (the main surface facing the pressing arm part 300) of the outer bag 30 faces (leftward in Fig. 3(A)) being the front, the direction in which the other main surface 34b (the main surface facing the support part 210) faces (rightward in Fig. 3(A) being the rear, the direction parallel to the horizontal plane on which the lower side of the rectangle forming the shape of the one main surface 34a extends (left-right direction in Fig. 3(B)) being the horizontal axis direction, and the vertical direction being the vertical axis direction.

[0044] In the auxiliary tool 100 of the present invention shown in FIG. 3, the holder section 200 has a support section 210 having a receiving surface 211 and a first clamping section 212, and an outer bag holding mechanism 220 capable of holding the outer bag 30 in a predetermined position of the holder section 200 in a state in which the outer bag 30 is detachably held upright with one end 31 of the outer bag 30 facing downward. The pressing arm section 300 has a connecting mechanism 310 for connecting with the holder section 200, and an arm body 320 having a second clamping section 321 and a pressing force application surface 322. The receiving surface 211 and the pressing force application surface 322 sandwich the pressed area 35a and the pressed area 35b of the kit 10 (outer bag 30), so that the kit 10 (outer bag 30) can be held by the outer bag holding mechanism 220 in a "predetermined position" where a pressing force can be reliably applied to the areas by the kit 10 (outer bag 30).

[0045] That is, in the support portion 210, the receiving surface 211 consists of a plane having an area capable of pressing at least a major portion of the pressed area 35b on the other main surface 34b of the outer bag 30 held in a predetermined position in the holder portion 200, and is positioned so as to face the pressed area 35b.

[0046] On the other hand, the pressing force application surface 322 is made of a plane having an area capable of pressing at least a major portion of the pressed region 35a on one main surface 34a of the outer bag 30 held at a predetermined position in the holder part 200. The pressing force application surface 322 is disposed at a position facing the one main surface 34a of the outer bag 30 when the pressing arm part 300 is rotated.

[0047] To explain the pressing arm section 300 and the relationship between the rotation and the direction of the pressing force applied surface 322 in more detail, the pressing arm section 300 has a connection mechanism 310 for connecting with the holder section 200, and an arm body 320 having a second clamping section 321 and a pressing force applied surface 322. The connection mechanism 310 has a hinge structure 311 that is disposed in one end section 323 region of the arm body 320 and connects the arm body 320 to the top section or its periphery of the support section 210, and allows the arm body 320 to rotate at least a predetermined angle or more around an axis in the horizontal axis direction near the connection section as a rotation axis (R-Ax). Here, the angle on the forward side formed by the longitudinal direction of the arm body 320 and the vertical direction passing through the rotation axis is defined as the interior angle (α), and the direction that is forward when the interior angle is 0° is defined as the front side of the arm body 320. The pressing force load surface 322 is positioned on the back side of the arm body 320.

[0048] The first clamping portion 212 and the second clamping portion 321 are provided to allow the outflow operation to be performed reliably with one hand, and specifically, they are arranged to be pinched and pressed with fingers (for example, the first clamping portion 212 with the index finger and / or middle finger of the right hand, and the second clamping portion 321 with the thumb of the right hand) to rotate the arm body in a direction to reduce the interior angle (α) and apply a pressing force. For this reason, the first clamping portion 212 is disposed on the lower rear side of the support portion 210, and the second clamping portion 321 is disposed on the other end portion 324 of the arm body 320 or on the surface side in the vicinity thereof.

[0049] From the viewpoint of operability, the hinge structure in the connecting mechanism 310 is preferably a spring hinge or a hinge structure having a leaf spring function, which is adjusted so that the interior angle is kept within a range of 10 to 35° in an unloaded state, and is particularly preferably a hinge structure having a leaf spring function, because the structure is simple and can be molded as a single unit. For this reason, in the figure, a hinge structure having a leaf spring function is used, which is a structure in which a part of the side wall of a cylinder made of plastic resin is cut off so that the cross section is C-shaped. When such a structure is used, the arm body 320 functions as a lever with the joint or its vicinity as a fulcrum, the second clamping part 321 as a force point, and the pressing force load surface 322 as a point of action, so that even a person with little strength can easily and reliably perform the outflow operation.

[0050] In the auxiliary device 100 of the present invention, in order to enable the applicator insertion opening forming operation and the application operation to be performed while the outer bag 30 is held by the outer bag holding mechanism 220 after the outflow operation, it is preferable to configure the support portion, the holder portion and the pressing arm portion so that when the outer bag is held at a predetermined position in the holder portion 200, the weakened line WL formed on the outer bag is exposed and the removal portion 39 can be cut out along the weakened line WL while held at the predetermined position.

[0051] Such a configuration is adopted in the auxiliary device 100 of the present invention shown in Fig. 3. That is, the outer bag holding mechanism 220 shown in Fig. 3 has an upper groove rail 221a and a lower groove rail 221b, which are arranged to extend horizontally in front of the support part 210 with a predetermined separation distance: D in the vertical axis direction so that the openings 223a, b of the grooves 222a, b face each other. With this, the other end 32 and one end 31 of the outer bag 30 in an upright state are inserted into the horizontal groove openings 225a, b exposed at the end faces of one ends 224a, b of the upper groove rail 221a and the lower groove rail 221b, respectively, so that they can slide back and forth within the grooves (slidably). Furthermore, a stopper 227 is provided in the groove 222 on the other end side 226 (a and / or b) of at least one of the groove rails to determine the range of sliding, and the position where the sliding stops by abutting against the stopper 227 is defined as the "predetermined position," so that the outer bag 30 can be held in this position.

[0052] The stopper 227 may be a structure having a vertical surface that blocks the groove. The length of the groove of the upper groove rail 221a and the lower groove rail 221b (the length from the stopper to the outer bag 30 side) is preferably 1 / 3 or more of the lateral length of the outer bag 30 for the reason that the outer bag 30 can be stably held. In addition, the length of the upper groove rail 221a is preferably a length that exposes the starting point of the weakened line WL (or a notch leading thereto) at the other end 32 of the outer bag 30 so that the weakened line formed on the outer bag is exposed and the removal portion can be cut along the weakened line while the outer bag is held at the predetermined position. Note that the upper limit of the length of the lower groove rail 221b is usually the lateral length of the outer bag 30, but in FIG. 3, it is aligned with the length of the upper groove rail 221a.

[0053] 3, the separation distance: D is expressed as the distance between the bottom surfaces of the grooves 222(a, b) of the upper groove rail 221a and the lower groove rail 221b. The separation distance: D may be at least the length equivalent to the height of the outer bag 30 and shorter than the length obtained by adding the depth of both grooves 222a, b to the height of the outer bag 30 at all points in the longitudinal direction of the groove rail, but it is preferable that the separation distance: D is at least the length equivalent to the height of the outer bag 30 at one end 224a, b, which is the insertion side of the outer bag 30, and is shorter than the length equivalent to the height of the outer bag 30 at the other end 226a, b, so that the distance decreases smoothly from one end to the other end, and a stress is generated that widens the front-rear distance between the one main surface 34a and the other main surface 34b in the outer bag held in a predetermined position by the outer bag holding mechanism. By doing so, it is possible to keep the applicator insertion opening open after the applicator insertion opening forming operation, and the application operation can be performed smoothly.

[0054] The above describes the auxiliary tool of the present invention with reference to FIG. 3, but these are shown as one embodiment, and the technical scope of the present invention is not limited to this specific embodiment. For example, a guide piece for assisting the application tool insertion opening formation operation may be provided at one end 224a of the upper groove rail 221a. Also, without providing a base portion, the other end 324 of the arm body may be made to have a length equivalent to the support portion 210, and a locking mechanism for fixing the arm body and the support portion to each other may be provided, and the pressing area 35a and the pressing area 35b of the kit 10 (outer bag 30) may be sandwiched between the receiving surface 211 and the pressing force application surface 322, so that the kit 10 can be locked in a pressing force-applied state, and the other end 324 of the arm body and the support portion 210 may be made to stand on their own as legs when locked. This can strengthen the lever action and further improve the reliability of the outflow operation. [Explanation of symbols]

[0055] 1: Multi-component liquid composition preparation kit 2: Composite liquid packaging 3: Outer bag 40: Lower end seal part (one end or the other end) 42: Upper end seal portion (other end or other end) 43: Simple seal part 44: Weakened Line 46: Notch 48: Applicator insertion opening 50: Applicator 52: Rod-shaped body 54: Liquid (liquid agent) holding section 10: This kit (multi-component liquid composition preparation kit) 20: Bag body 21: One end of the bag body 22: The other end of the bag 23: Liquid 24: Flat bag 30: Outer bag 31: One end of the outer bag 32: The other end of the outer bag 33: Flat bag 34: Main surface 34a: One main surface 34b: Other main surface 35(a, b): Pressed area 36:Bag storage space 37: Liquid storage space 38: Space for inserting applicator 39:Removal section WL: Weakened line 100: (For multi-component liquid composition preparation kits) Auxiliary equipment 200: Holder section 210: Strut part 211: Receiving surface 212:First clamping part 220: Outer bag holding mechanism 221a: Upper groove rail 221b: Lower groove rail 222(a,b): Groove 223(a,b): Groove opening 224(a,b): One end of groove rail 225(a, b): lateral groove opening 226(a, b): The other end of the groove rail 227: Stopper D: Separation distance 300: Pressing arm part 310:Connection mechanism 311: Hinge structure 320: Arm body 321:Second clamping part 322: Pressure load surface 323: One end of the arm body 324: The other end of the arm body R-Ax: Rotation axis α: interior angle 400: Base

Claims

1. A method for manufacturing a liquid storage device comprising: two or more bags each having one end and the other end and substantially the same shape; and an outer bag consisting of a flat bag having one end and the other end and having a substantially identical rectangular shape on the two main surfaces on the front and back, the outer bag having a bag accommodation space and a liquid storage space therein; each of the two or more bags holds components of a multi-component liquid composition in two or more liquid agents, and is configured so that the liquid agents will flow out from one end by applying a pressing force to the liquid agents held inside each bag, and a pressing area is defined at a predetermined position corresponding to each other on the two main surfaces on the front and back of the outer bag, the one main surface and the other main surface facing each other. the two or more bags are arranged so that one end and the other end are respectively directed to one end side and the other end side of the outer bag, and the other ends of all the bags are overlapped and sandwiched between the other end on the one main surface side and the other end on the other main surface side, so that the liquid agent flows out from one end of all the bags by pressing the pressed region of the outer bag, and the liquid pool space is a space that can hold the liquid agent flowing out from the two or more bags without contacting the two or more bags, a holder portion including: a support portion having a receiving surface and a first clamping portion; and an outer bag holding mechanism capable of detachably holding the outer bag at a predetermined position in an upright state with one end of the outer bag facing downward; and A pressing arm portion connected to the holder portion and rotatable around the vicinity of the connecting portion; When the auxiliary device is self-supporting on a horizontal surface and the outer bag is held at a predetermined position in the holder section, the direction in which one main surface of the outer bag faces is defined as the forward direction, the direction parallel to the horizontal plane along which the bottom side of the rectangle forming the shape of the one main surface extends is defined as the horizontal axis direction, and the vertical direction is defined as the vertical axis direction. In the support portion, the receiving surface is a plane having an area capable of pressing at least a major portion of a pressed area on the other main surface of the outer bag held at a predetermined position of the holder portion, and is disposed so as to face the pressed area, and the first clamping portion is disposed on the rear side and below, the pressing arm portion includes: an arm body having a second clamping portion and a pressing force application surface; and a connecting mechanism having a hinge structure that is disposed in one end region of the arm body, connects the arm body to the top of the support portion or its periphery, and allows the arm body to rotate at least a predetermined angle around an axis in the horizontal axis direction near the connecting portion as a rotation axis; When the angle on the front side between the longitudinal direction of the arm body and the vertical direction passing through the rotation axis is defined as an interior angle, and the direction that is forward when the interior angle is 0° is defined as the surface side of the arm body, the second clamping portion is disposed on the other end of the arm body or on the surface side thereof in the vicinity thereof, the pressing force application surface is a flat surface having an area capable of pressing at least a major portion of a pressed area on one main surface of an outer bag held at a predetermined position in the holder portion, and the pressing force application surface is disposed on the back side of the arm body at a position capable of abutting against the pressed area and pressing the pressed area when the arm body is rotated in a direction that reduces the interior angle between the first clamping portion and the second clamping portion. An auxiliary tool for a multi-component liquid composition preparation kit, comprising:

2. 2. The auxiliary device for a multi-component liquid composition preparation kit according to claim 1, further comprising a base portion for fixing the holder portion to which the pressing arm portion is connected at an upper portion so that the height direction of the holder portion is perpendicular or approximately perpendicular to a horizontal plane, thereby allowing the auxiliary device to stand independently.

3. The outer bag holding mechanism is structured such that the upper groove rail and the lower groove rail are arranged so that their groove openings face each other with a predetermined distance in the vertical direction and extend in the horizontal direction in front of the support portion, so that when the outer bag is upright, the other end and one end of the outer bag can be inserted into the horizontal groove openings exposed on the end faces of one end of the upper groove rail and the lower groove rail, respectively, allowing the outer bag to slide freely back and forth within the grooves, and a stopper is provided in the groove on the other end side of at least one of the groove rails to hold the outer bag in a predetermined position.

3. An auxiliary tool for the multi-component liquid composition preparation kit according to claim 1 or 2.

4. 3. An auxiliary device for a multi-component liquid composition preparation kit as described in claim 1 or 2, wherein the first clamping portion and the second clamping portion can be clamped and pressed between fingers to rotate the arm body and apply a pressing force.

5. The auxiliary device for a multi-component liquid composition preparation kit according to claim 1 or 2, wherein the hinge structure in the connecting mechanism is a spring hinge or a hinge structure having a leaf spring function adjusted so that the interior angle is maintained at a predetermined angle within a range of 10 to 35° in an unloaded state.

6. 4. An auxiliary device for a multi-component liquid composition preparation kit as described in claim 3, wherein the distance between the bottom surfaces of the grooves of the upper groove rail and the lower groove rail in the outer bag holding mechanism is greater than or equal to the length of the height of the outer bag at one end face and smoothly decreases from one end side to the other end side so that it is shorter than that length at the other end side, and wherein a stress is generated in the outer bag held in a predetermined position by the outer bag holding mechanism such that the front-to-rear distance between one main surface and the other main surface is widened.

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