JP7455349B2 - Chemical liquid storage container, chemical liquid supply member, chemical liquid supply device, and manufacturing method thereof - Google Patents

Description

The present invention relates to a chemical liquid storage container, a chemical liquid supply member, a chemical liquid supply device, and a manufacturing method thereof.

Patent Document 1 discloses a connection system in which a female member having a check valve structure is provided in a spout portion of a container filled with a medicine, and the female member is combined with a plug that opens and closes the female member. This coupling system allows the plug to be inserted into the female member to open the female member's check valve when in use, and the plug to be removed from the female member to close the check valve when discontinued use.

Patent No. 4292343

In the case of a mechanism having a non-return valve structure, the opening of the spout portion becomes smaller by the amount of the non-return valve, making it difficult to fill with chemicals. Additionally, a special check valve is required, resulting in high costs. Furthermore, when the user inserts or removes the plug, there is a risk that the user may come into contact with the chemical inside the container.

An object of the present invention is to provide a chemical liquid storage container, a chemical liquid supply member, a chemical liquid supply device, and a manufacturing method thereof that do not require a backflow prevention valve.

According to one aspect of the present invention, a pouch body containing a drug solution and provided with an opening, a spout portion provided at the opening of the pouch body, and an inner plug fitted inside the spout portion. , the inner stopper has an opening mechanism configured to remain open before use to prevent the liquid medicine from coming out of the spout, and to be opened during use so that the liquid medicine is discharged from the spout. A drug solution storage container is provided.

The opening mechanism includes a first cylindrical member fitted inside the spout, a lid, and a fixing member that fixes the lid to the first cylindrical member, and when in use, at least a portion of the lid is The opening mechanism may be opened by detaching from the fixing member.

During use, only a portion of the lid comes off from the fixing member, and the lid does not need to fall into the pouch body.

The opening mechanism may be opened by being pressed by a plug during use.

A male thread is provided on the outer peripheral surface of the spout part, and the plug is fixed to a plug cap having a female thread provided on the inner peripheral surface, and the female thread of the plug cap is tightened into the male thread of the spout part. The opening mechanism may be pressed by the plug.

The opening mechanism may be opened above a male thread provided on the outer peripheral surface of the spout portion during use.

The spout portion may include an annular member provided within the pouch body, and the opening mechanism may be opened below the upper surface of the annular member during use.

The inner plug may include a portion that prevents the inner plug from coming off from the spout portion.

The inner plug includes a second cylindrical member located inside the spout portion, the opening mechanism provided inside the second cylindrical member, and extends outward from the second cylindrical member, and includes a second cylindrical member located inside the spout portion. The spout may include a shoulder that rests on one longitudinal end of the spout, and a claw that extends outward from the second cylindrical member and that is hooked on the other longitudinal end of the spout.

A cap may be provided that covers the outside of the spout portion before use and is removed during use.

According to another aspect of the present invention, there is provided a drug solution supply member that is attached to the drug solution storage container and includes a plug that opens the opening mechanism of the inner stopper.

A plug cap is provided with a female screw provided on the inner circumferential surface and to which the plug is fixed, and the female screw of the plug cap is tightened into the male screw provided on the outer circumferential surface of the spout portion, whereby the chemical solution is accommodated. The container and the drug solution supply member may be fixed, and the opening mechanism may be pressed by the plug to open the container.

The plug may include a sealing member that is provided on the plug and comes into close contact with the inner surface of the inner plug.

The plug may be provided with a hole through which the chemical solution passes.

According to another aspect of the present invention, there is provided a drug solution supply device comprising a drug solution storage container and a drug solution supply member, wherein the drug solution storage container stores a drug solution and includes a pouch body provided with an opening; The chemical solution supplying member has a spout section provided at the opening of the pouch body, and an inner stopper that is fitted inside the spout section and opened so that the drug solution is discharged from the spout section. A drug supply device is provided having a plug extending through an opening in an inner stopper.

According to another aspect of the present invention, there is provided a method for manufacturing a chemical liquid supply device, which includes the step of attaching the chemical liquid supply member to the chemical liquid storage container.

An opening mechanism in the chemical liquid storage container may be opened by attaching the chemical liquid supply member to the chemical liquid storage container.

After the chemical solution in the attached chemical solution storage container is used up, the chemical solution storage container may be removed from the drug solution supply member, and the new drug solution storage container filled with the drug solution may be attached to the drug solution supply member.

Eliminates the need for a check valve.

FIG. 1 is a schematic front view of a chemical liquid supply device according to an embodiment. FIG. 2 is a schematic front view of the chemical liquid storage container 100 in a shipping state (that is, before the chemical liquid supply member 200 is attached). The figure which shows the state where the cap 4 of FIG. 2A was removed. FIG. 3 is an exploded view showing a state in which the inner plug 3 and the cap 4 are removed from the pouch body 1 and the spout portion 2. FIG. 3 is an enlarged cross-sectional view of the vicinity of the spout portion 2; FIG. 3 is a schematic side view of the inner plug 3. FIG. 3 is a schematic top view of the inner plug 3. FIG. 3 is a schematic bottom view of the inner plug 3. FIG. 3 is a side view of the claw 33. FIG. 3 is a perspective view of the claw 33. FIG. 2 is a schematic plan view of a chemical liquid supply member 200. FIG. 3 is a view of the chemical liquid supply member 200 viewed diagonally from below. FIG. 3 is a view of the chemical liquid supply member 200 viewed from below. FIG. 3 is an enlarged sectional view of the vicinity of the spout portion 2 in a state where the chemical liquid supply member 200 is attached to the chemical liquid storage container 100. FIG. 7 is a diagram showing how an opening 34a is formed in the inner plug 3 by the tip 51 of the plug 5. The figure which shows the usage state of a chemical|medical solution supply device. FIG. 3 is an enlarged cross-sectional view of the vicinity of the spout portion 2 when the chemical supply device is in use.

Embodiments according to the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a schematic front view of a chemical liquid supply device according to an embodiment. The drug solution supply device includes a drug solution storage container 100 containing a drug solution, and a drug solution supply member 200 attached to the container.

As an example, the chemical liquid is a cleaning liquid, and the user of the chemical liquid supply device is a store staff member. Further, the chemical solution supply member 200 is permanently installed in the equipment of the user's store. Then, by attaching the chemical solution storage container 100, which circulates the drug solution therein, to the drug solution supply member 200, the drug solution supply device shown in FIG. 1 is manufactured. The chemical liquid storage container 100 is not intended to be reclosed or refilled by the user, and when the chemical liquid is used up, the used chemical liquid storage container 100 is removed and discarded, and the chemical liquid supply member 200 is attached to a new chemical liquid storage container 100.

First, the chemical liquid storage container 100 will be explained.
FIG. 2A is a schematic front view of the chemical liquid storage container 100 in a shipping state (that is, before the chemical liquid supply member 200 is attached). The drug solution storage container 100 includes a pouch body 1, a spout portion 2, an inner stopper 3 (not visible in FIG. 2A), and a cap 4. Note that FIG. 2B is a diagram showing a state in which the cap 4 of FIG. 2A is removed. Moreover, FIG. 2C is an exploded view showing a state in which the inner plug 3 and cap 4 are removed from the pouch body 1 and the spout part 2.

The pouch body 1 contains a liquid drug solution (not shown). The shape of the pouch body 1 is not particularly limited, and may be a gusset type with a fold on the side, a standing type with a fold on the bottom, a flat bag type without a fold, or the like. The pouch body 1 is made of, for example, a single-layer film made of polyolefin-based PE (polyethylene) or PP (polypropylene) that is resistant to chemical solutions and can be flexibly deformed, or laminated with multiple materials such as plastic film and aluminum foil. It is made of a laminated film that can be folded to reduce its volume when it does not contain a chemical solution, and it is desirable that the volume increases when it contains a drug solution. Of course, the pouch main body 1 may be formed of a hard member and may have a constant shape regardless of the presence or absence of the drug solution.

An opening 1a is provided above the pouch main body 1. A spout portion 2 is provided in this opening portion 1a. The pouch main body 1 and the spout portion 2 may be a general-purpose product that is integrated in advance, thereby reducing costs. In this specification, for convenience, unless otherwise specified, the side of the pouch body 1 where the opening 1a is provided is defined as "upper".

FIG. 3 is an enlarged cross-sectional view of the spout portion 2 and its vicinity. The spout portion 2, inner plug 3, and cap 4 will be explained with reference to FIG.

The spout portion 2 includes an annular member 21 and a cylindrical member 22. The spout portion 2 passes through the opening 1a of the pouch body 1, and at least the bottom surface 21a of the annular member 21 is inside the pouch body 1. The cylindrical member 22 extends upward from the upper surface of the annular member 21. A male screw 22a is provided on the outer peripheral surface of the cylindrical member 22. Further, the cylindrical member 22 may be provided with an annular portion 23 for fitting the cap 4 into the spout portion 2. The spout portion 2 is made of, for example, PE (polyethylene) or PP (polypropylene), and is a hard member that does not easily deform.

The inner plug 3 is fitted inside the spout portion 2. The inner plug 3 has a cylindrical member 31, a shoulder portion 32, a claw 33, and an opening mechanism 34. Here, a schematic side view, a schematic top view, and a schematic bottom view of the inner plug 3 are shown in FIGS. 4A to 4C, respectively.

As shown in FIG. 3, the outer diameter of the cylindrical member 31 is slightly smaller than the inner diameter of the cylindrical member 22 in the spout portion 2, and the outer peripheral surface of the cylindrical member 31 is in close contact with the inner peripheral surface of the cylindrical member 22. This can prevent the chemical from unintentionally leaking to the outside. Further, as shown in FIGS. 4A and 4C, a cut 31a may be provided below the cylindrical member 31. This makes it easier to insert the inner plug 3 into the cylindrical member 22.

The shoulder portion 32 has an annular shape, and extends horizontally outward from the upper end of the cylindrical member 31, for example (see FIG. 3). Therefore, the outer diameter of the shoulder portion 32 is larger than the outer diameter of the cylindrical member 31. The shoulder portion 32 rests on the upper portion of the cylindrical member 22 in the spout portion 2 (the upper end portion in the longitudinal direction of the spout portion 2). In other words, the lower surface of the shoulder portion 32 is located on the upper end surface of the cylindrical member 22. Thereby, the inner stopper 3 does not fall out of the spout part 2 and fall into the pouch body 1, but stays inside the spout part 2, and it is possible to prevent the chemical solution from unintentionally leaking to the outside.

The claw 33 extends outward from the lower end of the cylindrical member 31, for example. A side view and a perspective view of the claw 33 are shown in FIGS. 4D and 4E. The claw 33 has a saucer surface 33a extending horizontally outward from the cylindrical member 31, and a tapered surface 33b pointing downward. As shown in FIG. 3, the tray surface 33a is caught on the bottom surface 21a of the annular member 21 of the spout section 2 (lower end in the longitudinal direction of the spout section 2), thereby preventing the inner plug 3 from coming out upward from the spout section 2. It can be suppressed. Further, by providing the tapered surface 33b, it becomes easier to insert the inner plug 3 into the cylindrical member 22.

As shown in FIG. 3, the opening mechanism 34 is provided inside the cylindrical member 31. In the shipping state (before the user uses the medicinal solution), the opening mechanism 34 has a lid 34b and is not opened, which prevents the medicinal solution in the pouch body 1 from leaking out from the spout portion 2. Therefore, it is not necessary to provide the spout portion 2 with a check valve. When a user uses the medicinal solution, the opening mechanism 34 forms an opening 34a by removing at least a portion of the lid 34b, and the medicinal solution in the pouch body 1 is discharged from the spout portion 2.

As an example of the opening mechanism 34, the opening mechanism 34 includes a disc-shaped lid 34b provided in the opening 34a, and a fixing member 34c that fixes the lid 34b to the cylindrical member 31. In use, when the user presses the lid 34b downward with a plug (described later), the lid 34b comes off from the fixing member 34c, and an opening 34a is formed in the opening mechanism 34. Note that when the lid 34b is completely removed from the fixing member 34c, the lid 34b falls into the chemical solution. If this point is inconvenient, by allowing only a portion of the lid 34b to come off the fixing member 34c (hatch type), the opening 34a can be formed without the lid 34b falling into the chemical solution.

The cap 4 covers the upper outer side of the spout portion 2. Specifically, the cap 4 is fitted into the spout portion 2 by the female thread provided on the inner peripheral surface of the cap 4 engaging with the male thread 22a provided on the outer peripheral surface of the spout portion 2 . Further, an annular portion 41 extending downward from the upper surface of the cap 4 may be provided. The outer diameter of the annular portion 41 is slightly smaller than the inner diameter of the cylindrical member 31 of the inner plug 3, so that the inner plug 3 can be fixed more firmly.

Such a chemical solution storage container 100 is manufactured as follows. First, with the inner stopper 3 and cap 4 removed (see FIG. 2C), a desired chemical solution is filled into the pouch body 1 through the spout portion 2. Since there is no check valve in the spout section 2, filling of the chemical solution is easy.

Thereafter, the inner plug 3 is inserted inside the spout portion 2 (see FIG. 2B) and sealed tightly. Next, the cap 4 is tightened onto the spout portion 2 (see FIG. 2A), and the cap 4 is tightened if necessary. It is shipped to users in this state. Note that if the inner stopper 3 seals the pouch body 1 and the medicinal solution does not come out of the pouch body 1, the cap 4 may not be provided.

Next, the chemical liquid supply member 200 will be explained.
FIG. 5A is a schematic plan view of the chemical liquid supply member 200. FIG. 5B is a diagram of the chemical liquid supply member 200 viewed diagonally from below. FIG. 5C is a diagram of the chemical solution supply member 200 viewed from below. The chemical supply member 200 includes a plug 5, a tube 6, and a plug cap 7.

The plug 5 has a sharp tip 51 and a chemical liquid channel 52. A hole 51a is provided in (the tip and/or the side surface of) the distal end portion 51, and a medical solution can flow into the medical solution channel 52 through this hole 51a. The chemical fluid channel 52 passes through the top surface of the plug cap 7 and is connected to the tube 6 at the top. Further, an O-ring 53 as a sealing member is fitted into the chemical fluid channel 52. A chemical liquid flow path 52 of the plug 5 is located at the center of the plug cap 7, and the chemical liquid flow path 52 is fixed to the plug cap 7. A female thread 7a is provided on the inner peripheral surface of the plug cap 7.

When using a drug solution, the user removes the cap 4 from the drug solution storage container 100 (the state shown in FIG. 2B) and attaches the drug solution supply member 200. Specifically, the female thread 7a of the plug cap 7 of the chemical liquid supply member 200 is tightened into the external thread 22a of the spout portion 2 of the chemical liquid storage container 100 to fix the chemical liquid storage container 100 and the chemical liquid supply member 200. .

FIG. 6A is an enlarged sectional view of the vicinity of the spout portion 2 in a state where the chemical liquid supply member 200 is attached to the chemical liquid storage container 100. As shown in the figure, by attaching the drug solution supply member 200 to the drug solution storage container 100, the tip 51 of the plug 5 presses the lid 34b of the inner stopper 3, and an opening 34a is formed (that is, the tip 51 It only needs to be sharp enough to press the lid 34b to form the opening 34a). FIG. 6B shows how the opening 34a is formed in the inner plug 3 by the tip 51 of the plug 5. This will be explained in more detail below.

As shown in FIG. 6A, the plug 5 has a length that reaches the opening mechanism 34. Therefore, by tightening the female screw 7a of the plug cap 7 of the chemical solution supply member 200 into the male screw 22a of the spout portion 2, the tip 51 of the plug 5 can be straightly inserted into the opening mechanism 34 without applying much force. The lid 34b is pressed and further the opening 34a is penetrated. As a result, the hole 51a formed in the tip 51 is located below the opening 34a. Further, the O-ring 53 is in close contact with the inner surface of the inner plug 3 (the cylindrical member 31 therein).

FIG. 7A is a diagram showing the usage state of the chemical solution supply device. Further, FIG. 7B is an enlarged cross-sectional view of the vicinity of the spout portion 2 when the chemical liquid supply device is in use. As shown in these figures, when in use, the drug supply device is suspended so that the opening 1a of the pouch body 1 faces downward. Then, by generating negative pressure with a pump (not shown) provided at the tip of the tube 6, the medicinal liquid in the pouch body 1 is sucked, and the hole 51a of the plug 5 and the opening 34a formed in the inner stopper 3 are sucked. The chemical liquid is supplied through the chemical liquid channel 52, and further through the tube 6 (see FIG. 7B).

In addition, since the O-ring 53 is in close contact with the inner surface of the cylindrical member 31 in the inner stopper 3, leakage of the medical solution from the outside of the tube 6 through the outside of the medical solution flow path 52 can be suppressed.

Further, it is desirable that not only the drug solution but also air be contained in the pouch body 1 in advance. The pump performs suction even after the chemical solution is used up, and this is to reduce the load on the pump at that time. Furthermore, by providing a sensor that detects the refractive index near the tube 6, it is possible to detect whether the chemical liquid is flowing in the tube 6 or whether the chemical liquid has been used up and air is flowing.

This chemical solution supply device is not intended for re-closing or replacing only the chemical solution, but replaces the chemical solution storage container 100 when the chemical solution is used up. Since the chemical solution is replaced when it is used up, the user can safely perform the replacement work without touching the chemical solution.

In addition, in order to minimize the amount of drug remaining in the pouch body 1, as shown in FIG. It is desirable that it be located closer to the plug cap 7 (lower in use) than the bottom surface 21a (shown as the top surface in FIG. 7 in use). However, it may be on the opposite side of the plug cap 7 from the bottom surface 21a (above during use) as long as it is a little (for example, about several mm to 10 mm).

Further, it is desirable that the opening 34a be located closer to the annular member 21 (on the pouch body 1 side, above when in use) than the male thread 22a of the spout portion 2. When the O-ring 53 disposed on the plug 5 integrated with the plug cap 7 starts tightening the male thread 22a of the spout part 2 and the female thread 7a of the plug cap 7, the O-ring 53 is placed in a position where no liquid leaks. This is because the opening 34a located further inward of the pouch body 1 than the O-ring 53 is necessarily closer to the annular member 21 than the male thread 22a of the spout portion 2.

According to this embodiment, there is no need to provide the spout portion 2 with a check valve. Therefore, the opening of the spout portion 2 becomes larger, making it easier to fill with chemicals. Further, a special check valve is not required, and general-purpose pouch body 1 and spout portion 2 can be used, so costs can be reduced. Furthermore, since the male screw 22a of the spout part 2 and the female screw 7a of the plug cap 7 are tightened, the opening 34a is formed in the inner plug 3 with the tip 51 of the plug 5 without applying strong force. can.

The embodiments described above have been described to enable those skilled in the art to carry out the invention. Various modifications of the above-mentioned embodiment can be naturally made by those skilled in the art, and the technical idea of the present invention can be applied to other embodiments. Therefore, the invention is not limited to the described embodiments, but is to be accorded the widest scope according to the spirit defined by the claims.

100 Chemical solution storage container 1 Pouch main body 1a Opening 2 Spout portion 21 Annular member 21a Bottom surface 22 Cylindrical member 22a Male screw 23 Annular portion 3 Inner stopper 31 Cylindrical member 32 Shoulder portion 33 Claw 33a Receiver surface 33b Taber surface 34 Opening mechanism 34a Opening 34b Lid 34c Fixing member 4 Cap 41 Annular portion 200 Chemical supply member 5 Plug 51 Tip portion 51a Hole 52 Chemical flow path 53 O-ring 6 Tube 7 Plug cap 7a Female thread

Claims (18)

A pouch body containing a drug solution and having an opening on the surface that faces downward during use;
a spout portion having an annular member provided within the pouch body and provided at an opening of the pouch body;
an inner stopper that is fitted inside the spout part after the pouch body is filled with the drug solution ;
The inner plug is
a second cylindrical member located inside the spout portion;
Before use, it is not opened to prevent the chemical solution from coming out of the spout portion, and when in use, when pressed by the plug of the chemical solution supply member, the annular member is opened below the upper surface of the annular member, and the chemical solution flows into the spout portion. an opening mechanism provided inside the second cylindrical member and at a position lower than the upper end of the second cylindrical member ;
a shoulder extending outward from the second cylindrical member and resting on one longitudinal end of the spout;
a claw extending outward from the second cylindrical member and catching on the other longitudinal end of the spout ;
The plug is a liquid medicine storage container that includes a sharp tip portion with a hole provided on a side surface, and a liquid medicine flow path communicating with the hole. The opening mechanism is
a first cylindrical member fitted inside the spout portion;
The lid and
a fixing member that fixes the lid to the first cylindrical member,
The drug solution storage container according to claim 1, wherein the opening mechanism opens when at least a portion of the lid comes off from the fixing member during use. The drug solution storage container according to claim 2, wherein only a portion of the lid comes off from the fixing member during use, and the lid does not fall into the pouch body. The opening mechanism opens below the upper surface of the annular member, thereby reducing the amount of the drug solution remaining in the pouch body, compared to a case where the opening mechanism opens above the upper surface of the annular member. 3. The drug solution storage container according to any one of 3. A male thread is provided on the outer peripheral surface of the spout portion,
The plug is fixed to a plug cap having a female thread on the inner peripheral surface,
The chemical solution storage container according to any one of claims 1 to 4, wherein the opening mechanism is pressed by the plug by tightening the female thread of the plug cap to the male thread of the spout part. The liquid medicine storage container according to claim 5, wherein the opening mechanism opens above a male thread provided on the outer circumferential surface of the spout portion when in use. 7. The liquid medicine storage container according to claim 1, wherein a hole communicating with the liquid medicine flow path is also provided at the tip of the tip part. The drug solution storage container according to any one of claims 1 to 7, wherein the inner stopper includes a portion that prevents the inner stopper from coming off from the spout portion. The drug solution storage container according to any one of claims 1 to 8, further comprising a cap that covers the outside of the spout portion before use and is removed during use. The cap is provided with an annular portion extending downward from the top surface thereof,
The drug solution storage container according to claim 9, wherein the annular portion fits into the upper end portion of the second cylindrical member . A drug solution supply member attached to the drug solution storage container according to any one of claims 1 to 10,
A sharp point provided on a side surface with a hole communicating with a drug fluid flow path that opens an opening mechanism provided inside the second cylindrical member of the inner stopper and at a position lower than the upper end of the second cylindrical member. A chemical liquid supply member comprising a plug having a tip portion. A plug cap having a female screw provided on the inner circumferential surface and to which the plug is fixed,
By tightening the female screw of the plug cap into the male screw provided on the outer peripheral surface of the spout part, the chemical liquid storage container and the chemical liquid supply member are fixed, and the opening mechanism is pressed by the plug. The chemical solution supply member according to claim 11, which is opened by being opened. The drug solution supply member according to claim 11 or 12, further comprising a seal member provided on the plug and in close contact with the inner surface of the inner plug. The chemical liquid supply member according to any one of claims 11 to 13, wherein the plug is provided with a hole through which the chemical liquid passes. A drug solution supply device comprising a drug solution storage container and a drug solution supply member,
The chemical solution storage container is
A pouch body containing a drug solution and having an opening on the surface that faces downward during use;
a spout portion having an annular member provided within the pouch body and provided at an opening of the pouch body;
an inner stopper that is fitted inside the spout part after filling the pouch body with the drug solution and opens below the top surface of the annular member so that the drug solution is discharged from the spout part;
The inner plug is
a second cylindrical member located inside the spout portion;
Before use, it is not opened to prevent the chemical solution from coming out of the spout portion, and when in use, when pressed by the plug of the chemical solution supply member, the annular member is opened below the upper surface of the annular member, and the chemical solution flows into the spout portion. an opening mechanism provided inside the second cylindrical member and at a position lower than the upper end of the second cylindrical member;
a shoulder extending outward from the second cylindrical member and resting on one longitudinal end of the spout;
a claw extending outward from the second cylindrical member and catching on the other longitudinal end of the spout;
The chemical solution supply member has a plug that passes through the opening of the inner plug,
The said plug is a chemical|medical solution supply device provided with the sharp tip part with the hole provided in the side surface, and the chemical|medical solution flow path which communicates with the said hole. A method for manufacturing a chemical liquid supply device, comprising the step of attaching the chemical liquid supply member according to any one of claims 11 to 14 to the chemical liquid storage container according to any one of claims 1 to 10. 17. The method for manufacturing a chemical liquid supply device according to claim 16, wherein an opening mechanism in the chemical liquid storage container is opened by attaching the chemical liquid supply member to the chemical liquid storage container. After the chemical liquid in the attached chemical liquid storage container is used up, the chemical liquid storage container is removed from the chemical liquid supply member,
18. The method for manufacturing a drug solution supply device according to claim 16 or 17, comprising the step of attaching a new drug solution storage container according to any one of claims 1 to 10 filled with a drug solution to the drug solution supply member.