JP2019026367A - Article and liquid storage bag - Google Patents

Abstract

SOLUTION: There is provided an article that has a liquid, a bag member for storing the liquid, and a cover member arranged to cover at least a part of the bag member, and that is characterized in that a space part is arranged closer to a bag member side than an outer most part of the cover member while isolated from the inside of a bag member and the outside of the article respectively, and also has a detection promoting function of promoting a user to detect a penetrating flaw part generated at the outermost part of the cover member when the penetrating flaw part reaches the space part, and the detection promoting function enables the user to recognize change in a state of the space part caused by the penetrating flaw part to promote the detection on the penetrating flaw part.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to an article having a liquid and a liquid storage bag.

  As a container for storing a liquid for transporting or storing the liquid, for example, a liquid storage bag using a film material is widely used. For example, Patent Document 1 discloses a chemical solution bag having a flexible bag body, a discharge port member, an access blocking member, and a cover member. In patent document 1, it aims at alerting a user so that correct operation may be performed. Patent Document 2 discloses a medicine bag in which an eye catch is disposed inside a discharge port.

Japanese Patent No. 4671175 Japanese Patent Laying-Open No. 2015-66409

In general, since the liquid storage bag is made of a soft material such as a film material, when a physical force is locally applied, a penetrating flaw portion penetrating the bag is likely to occur. Moreover, when a penetration flaw part arises, we are anxious about a foreign material mixing in the inside of a liquid storage bag from a penetration flaw part. In addition, a malicious other person may intentionally generate a penetrating wound portion and mix foreign substances into the liquid storage bag.
On the other hand, when a penetrating flaw is generated in the liquid storage bag, it is often difficult for the user to detect the penetrating flaw. As described above, when a penetrating flaw is generated, the article has a higher risk of reducing the reliability of the liquid, such as foreign matter mixed therein. Therefore, in an article using a liquid storage bag, it is required that the user can easily determine whether there is a risk due to the penetrating wound portion.
The present disclosure has been made in view of the above circumstances, and a main object of the present disclosure is to provide an article that allows a user to easily detect a penetrating flaw, and a liquid storage bag used therefor.

  In the present disclosure, the article includes a liquid, a bag member for storing the liquid, and a cover member arranged to cover at least a part of the bag member, from the outermost part of the cover member Also, on the bag member side, a space portion isolated from each of the inside of the bag member and the outside of the article is arranged, and the space portion has a penetrating wound portion generated at the outermost portion of the cover member. When it reaches the space part, it has a detection promoting function that prompts the user to detect the penetrating wound part, and the detection promoting function is used to change the state of the space part caused by the penetrating wound part. By providing recognition to the user, an article is provided that has a function of prompting detection of the penetrating wound.

  Moreover, in this indication, it is a liquid storage bag used for the article mentioned above, and has the above-mentioned bag member and the above-mentioned cover member, and the above-mentioned space part is on the above-mentioned bag member side rather than the outermost part of the above-mentioned cover member. A liquid storage bag is provided.

  The article of the present disclosure has an effect that the user can easily detect the penetrating wound.

It is the schematic plan view and schematic sectional drawing which illustrate the articles | goods of this indication. It is the schematic plan view and schematic sectional drawing which illustrate the articles | goods of this indication. It is explanatory drawing explaining the detection promotion function of the space part in this indication. It is explanatory drawing explaining the detection promotion function of the space part in this indication. It is explanatory drawing explaining the detection promotion function of the space part in this indication. It is the schematic plan view and schematic diagram which illustrate the articles | goods of this indication. It is the schematic plan view and schematic diagram which illustrate the articles | goods of this indication. 1 is a schematic cross-sectional view illustrating an article of the present disclosure. It is the schematic plan view and schematic sectional drawing which illustrate the articles | goods of this indication. It is process drawing which illustrates the manufacturing method of the articles | goods of this indication. It is process drawing which illustrates the manufacturing method of the articles | goods of this indication. It is a schematic diagram which illustrates the liquid storage bag of this indication.

The present disclosure relates to an article having a liquid and a liquid storage bag.
The “liquid” in the present disclosure may be, for example, only a liquid substance containing no solute, or may be a solution containing a solute and a solvent.
The “liquid” may be, for example, a chemical used for causing a chemical reaction, or may not be a chemical.

In addition, the “liquid” in the present disclosure includes a liquid substance used in all fields, and examples include a liquid substance used in the medical field, the industrial field, the daily necessities field, the food field, and the like.
Specific examples of the “liquid” include infusion solutions and drug solutions in the medical field.
In the present specification, the term “infusion solution” refers to an infusion formulation prescribed by the infusion formulation council, and specifically, a volume intended to increase the therapeutic effect by being administered into the body via intravenous or the like. 50 mL or more injections, preparations for the purpose of correcting or maintaining water / electrolyte abnormalities, or maintaining energy metabolism or protein metabolism when oral intake is impossible or poor, or dissolution for drug administration -Refers to diluent. Typical examples of the infusion include electrolyte infusion, nutrient infusion, and other infusions (plasma expander, osmotic diuretic).

  In the present specification, the “chemical solution” refers to a liquid drug other than infusion or a medical liquid. Examples of the liquid drug other than the infusion include a liquid preparation having a different liquid amount (volume) from the infusion, a liquid preparation whose administration site is other than the blood vessel, a drug substance, a reagent, and an intermediate thereof. Moreover, as a medical liquid, a culture solution etc. can be mentioned, for example. Examples of the culture solution include a culture solution such as a cell culture solution and a culture medium.

  In addition, specific examples of “liquid” include liquid chemicals such as beverages and seasonings in the food field, liquid detergents in the field of daily necessities, and industrial chemicals in the industrial field.

  Further, “accommodating liquid” refers to accommodating at least a liquid, and includes the meaning of accommodating only a liquid and accommodating both a liquid and a solid.

Generally, since the liquid storage bag is made of a soft material, when a physical force is applied locally, a penetrating wound portion that penetrates the bag is likely to occur. When a penetrating flaw occurs, there is a concern that foreign matter may enter the liquid storage bag from the penetrating flaw.
Further, in an article using a liquid storage bag, for example, a malicious other person may make a malicious mischief such as causing a penetrating wound part intentionally into the liquid storage bag and mixing in foreign matter.
On the other hand, in an article using a liquid storage bag, it may be difficult for a user to detect contamination from a penetrating wound part. In particular, it is difficult for a user to detect foreign matter from a penetrating wound due to a malicious tamper.

  One of the reasons why it is difficult to detect contamination from the penetrating flaw is that it is difficult for the user to recognize the penetrating flaw by visual observation. One reason is that it may take a certain amount of time for the liquid as the contents to leak out of the liquid storage bag through the penetrating wound. In order to increase the strength and the like in the liquid storage bag, a thick film material may be used. However, when a penetrating wound portion is generated in the liquid storage bag made of the thick film material, the content is particularly content. There is a tendency that liquid does not easily leak out.

  In addition, when a malicious other person causes a penetrating wound portion to the liquid storage bag, a penetrating wound portion having a size that the user cannot understand at first glance may be generated using an extremely fine needle or the like. For this reason, it is particularly difficult for a user to detect foreign matters due to malicious tampering.

By the way, in an article using a liquid storage bag, there is a high correlation between the occurrence of a penetrating flaw in the liquid storage bag and a decrease in the reliability of the stored liquid. Specifically, when a penetrating flaw is generated, there is a high possibility that a foreign substance is mixed from the penetrating flaw as described above. In addition, there is a concern that the liquid may be deteriorated by the outside air entering from the penetrating wound. In particular, when the penetrating wound is caused by a malicious tamper, there is a high possibility that foreign objects are mixed in or the liquid is altered.
Therefore, if an article has a penetrating flaw in the liquid storage bag, avoid the use of liquid to avoid risk regardless of whether foreign matter is actually mixed in or the liquid has been altered. There is a need. Specifically, when a penetrating flaw is generated in a liquid storage bag in which unused liquid is stored, it is necessary to avoid using the article itself. In addition, when a penetrating flaw occurs in the liquid storage bag during the use of the liquid, it is necessary to stop using the liquid immediately.
In order to enable the user to accurately determine the risk avoidance described above, it is desired that the user can easily detect the penetrating wound portion in the article using the liquid storage bag.

  For example, Patent Documents 1 and 2 disclose that the presence or absence of opening of the liquid storage bag is detected using an access blocking member or an eye catch, but this is not a configuration for detecting a penetrating flaw. Further, there is no disclosure or suggestion about the problem of detecting a penetrating flaw.

In view of the above situation, an object of the present disclosure is to provide an article that allows a user to easily detect a penetrating wound part, and a liquid storage bag used therefor.
In order to solve the above-described problems, the following article and liquid storage bag are provided.

A. Article The article of the present disclosure is an article having a liquid, a bag member for storing the liquid, and a cover member arranged so as to cover at least a part of the bag member. Space portions isolated from the inside of the bag member and the outside of the article are arranged on the bag member side from the outside, and the space portion is a penetrating wound portion generated at the outermost portion of the cover member. Has a detection facilitating function that prompts the user to detect the penetrating flaw when the user reaches the space, and the detection facilitating function is a change in the state of the space caused by the penetrating flaw. This is a function that prompts the user to detect the penetrating wound by making the user recognizable.
In the following description, a configuration in which a bag member and a cover member in an article are combined may be referred to as a liquid storage bag.

  In the present disclosure, the “penetrating wound portion” is a wound portion penetrating the base material constituting the liquid storage bag, the member constituting the bag member, or the cover member, and more specifically, the member or the base material. In the thickness direction, it refers to a hole that penetrates from one surface to the other surface. The size of the penetrating flaw portion in the present disclosure is not particularly limited, and may be a size that can be recognized by the user's visual observation or a size that is difficult to recognize by the user's visual observation. However, the latter is more preferable. That is, it is preferable that the penetrating flaw is fine. This is because the detection promotion function of the cover member can be exhibited more highly. The size of the fine penetrating flaw is a size that is difficult to recognize by the user's visual observation, and differs depending on the type of article, the material in the liquid storage bag, etc., and is not strictly defined. The size may be 2 mm or less. In addition, the magnitude | size of a penetration flaw part points out the maximum value of the diameter of the opening part of a penetration flaw part.

  The “outermost part of the cover member” refers to a part of the cover member that is disposed on the outermost side of the article. Since the cover member usually has at least one base material, the outermost part of the cover member is usually located on the outer side surface of the base material that is arranged on the outermost side of the article in the cover member. Further, when the article of the present disclosure is viewed on the basis of the space part, the outermost part of the cover member is arranged on the outer side of the article with respect to the space part.

  “When the penetrating flaw generated on the outermost part of the cover member reaches the space part”, it is located at least between the outermost part of the cover member and the space part by applying a physical force from the outside. When the penetrating flaw part that penetrates the base material occurs, when the penetrating flaw part occurs only in the base material located between the outermost part of the cover member and the space part, from the outermost part of the cover member This includes all cases where a through-scratched part occurs in the base member located on the bag member side and where a through-scratched part occurs in the cover member and the bag member.

  “Prompt the user to detect the penetrating wound” means that the user can easily detect the penetrating wound. “The user detects the penetrating wound” means that at least the user recognizes the presence or absence of the penetrating wound, may recognize only the presence or absence of the penetrating wound, The position may be recognized.

The article of the present disclosure will be described with reference to the drawings. FIG. 1A and FIG. 2A are schematic plan views illustrating examples of the article of the present disclosure. 1B is a cross-sectional view taken along line AA in FIG. 1A, and FIG. 1C is an explanatory diagram for explaining a space portion in FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A, and FIG. 2C is an explanatory diagram for explaining a space portion in FIG. 2B. As shown in FIGS. 1A to 1C and FIGS. 2A to 2C, the article 10 of the present disclosure includes a liquid 1, a bag member 2 for storing the liquid 1, and a bag member 2. And a cover member 3 arranged so as to cover at least a part thereof. In addition, a space portion S isolated from the inside of the bag member 2 and the outside of the article 10 is disposed on the bag member 2 side of the outermost portion of the cover member 3 in the article 10. The space portion S has a detection promotion function described later.
1 (a) to 1 (c) and FIGS. 2 (a) to 2 (c), the bag member 2 is joined to the pouring member 21 having the pouring port 2a and the pouring member 21 to store the liquid. The example which has the trunk | drum member 22 which has the part 2b is shown. Moreover, the example in which the article | item 10 further has the sealing member 4 which seals the spout 2a in the bag member 2 is shown. Moreover, the cover member 3 has shown the example which has a bag-like form which covers the bag member 2 whole.
1A to 1C show an example in which the cover member 3 has one base material 31, and in FIGS. 2A to 2C, the cover member 3 has the base material 31. And the example which has the double structure which piled up two base materials of the base material 32 is shown. 1 (a) to 1 (c) and FIGS. 2 (a) to 2 (c), an adhesive portion H in which the surface of the base member 31 on the bag member side is brought into direct contact with the end portion of the cover member 3 and adhered thereto. The example which has is shown. In addition, H in the drawings described below also indicates that an adhesive portion is provided.

In the present disclosure, for example, as shown in FIGS. 1A to 1C, the space portion S may be disposed between the bag member 2 and the cover member 3. For example, as shown in FIGS. 2A to 2C, when the cover member 3 has a multiple structure in which two base materials 31 and 32 are overlapped, the space portion S is the base material 31. Further, it may be disposed between the base material 32. In this case, a space portion S and an isolation portion T isolated from the outside of the article 10 may be disposed between the bag member 2 and the cover member 3. In FIG. 1C and FIG. 2C, portions other than the space portion S are hatched on the bag member side of the cover member for easy explanation.
In FIG. 1 (a) and FIG. 2 (a), the liquid is not shown for ease of explanation. The bag member 2 covered with the cover member 3 is indicated by a broken line. The same applies to the drawings described below.

  The space part in the present disclosure has a detection promoting function that prompts the user to detect the through-scratched part when the penetrating wound part generated on the outermost part of the cover member reaches the space part. The detection promoting function is a function that prompts the user to detect the penetrating flaw by allowing the user to recognize the change in the state of the space caused by the penetrating flaw.

  The detection promotion function will be described with reference to the drawings. 3A to 3D are explanatory diagrams illustrating an example of the space portion detection promotion function according to the present disclosure. For example, the state of the space S shown in FIGS. 3A and 3B is a state filled with the gas Gas. In this case, as shown in FIG. 3 (c), for example, when a penetrating wound portion P that reaches the space portion S by the needle N being pierced to the outermost part of the cover member 3 in the article 10 occurs, FIG. As shown in d), the state of the space portion S is changed by the penetrating wound portion P. Specifically, the gas Gas filled in the space portion S leaks out of the article 10 through the penetrating wound portion P. The leakage of the gas Gas from the space part S can be recognized by, for example, the user visually observing the wrinkle of the cover member 3 or the like. Further, when the user touches the article 10, the cover member 3 can be deflated and the pressure of the leaked gas Gas can be recognized.

  4A to 4D are explanatory diagrams for explaining another example of the space portion detection promotion function in the present disclosure. For example, the state of the space portion S shown in FIGS. 4A and 4B is a state where the pressure is reduced more than the pressure outside the article. In this case, as shown in FIG. 4 (c), for example, when a penetrating wound portion P that reaches the space portion S by the needle N sticking to the outermost portion of the cover member 3 in the article 10 occurs, FIG. As shown in (d), the state of the space portion S is changed by the penetrating wound portion P. Specifically, the air Air flows from the outside of the article through the through-scratched portion P into the space portion S that is in a reduced pressure state. The inflow of air Air into the space portion S can be recognized, for example, when the user visually observes the swelling of the cover member 3. Further, when the user touches the article 10, the swelling of the cover member 3 can be recognized.

  FIGS. 5A to 5D are explanatory diagrams illustrating another example of the space portion detection promotion function according to the present disclosure. For example, the state of the space portion S shown in FIGS. 5A and 5B is a state in which the detection liquid L is filled. In this case, as shown in FIG. 5 (c), for example, when a penetrating wound portion P that reaches the space portion S by the needle N sticking to the outermost portion of the cover member 3 in the article 10 occurs, FIG. As shown in (d), the state of the space portion S is changed by the penetrating wound portion P. Specifically, the detection liquid L filled in the space portion S leaks out of the article 10 through the penetrating wound portion P. The leakage of the detection liquid L from the space part S can recognize that the cover member 3 is wet with the detection liquid L when the user touches the article 10, for example. Further, the user can recognize the liquid L for detection visually.

According to the present disclosure, since the space portion has the above-described detection promoting function, when the penetrating wound portion is generated, the article can be easily detected by the user. Specifically, in the article of the present disclosure, since the user can recognize the change in the space portion caused by the penetrating flaw portion, the penetrating flaw portion can be easily detected. In particular, in the present disclosure, since the user can recognize the change of the space portion by touching the article, the user can more intuitively detect the penetrating wound portion.
Further, in the article of the present disclosure, since the user can easily detect the penetrating wound part, it is possible to easily determine whether or not the reliability of the liquid that is the content is reduced, and the risky liquid Use can be avoided.
Hereinafter, details of the article of the present disclosure will be described.

1. Space Part The article of the present disclosure has a space part.
A space part is a part which is arrange | positioned inside the outermost part of a cover member, is isolated from each of the inside of a bag member, and the exterior of an article | item, and is a part which has a detection promotion function.
In addition, the article of the present disclosure is a part that is disposed inside the outermost part of the cover member and is isolated from each of the inside of the bag member and the outside of the article, and further includes an isolation part that does not have a detection promoting function. May be. The difference between the space part and the isolation part in the present disclosure is the presence or absence of a detection promoting function. Specifically, in the space portion, the internal state changes to such an extent that the user can recognize it through the penetrating wound portion. On the other hand, in the isolation part, the internal state does not change to the extent that the user can recognize by the penetrating wound part, or the change in the state is not recognized by the user.

(1) Detection promotion function and state of the space portion The space portion is a detection promotion function that urges the user to detect the through-scratched portion when the penetrating-scratched portion generated on the outermost part of the cover member reaches the space portion. Have The detection promoting function is a function that prompts the user to detect the penetrating flaw by allowing the user to recognize the change in the state of the space caused by the penetrating flaw.
“Making it recognizable to the user” means making it recognizable by at least one of the visual and tactile sensations of the user.

In the detection promoting function, the state of the space portion changes due to the penetrating wound portion. The change in the state of the space portion is not particularly limited as long as the user can recognize it, and is appropriately determined depending on the state of the space portion before the penetrating wound portion is generated.
In the detection promotion function, the user is usually allowed to recognize the state of the space part after the change, thereby prompting the user to detect the penetrating wound part. For example, the user is in the middle of the change of the space. By making the state of the part recognizable, detection of the penetrating wound part may be promoted.

Examples of changes in the state of the space portion in the detection promoting function include leakage of gas filled in the space portion, inflow of gas into the space portion in a reduced pressure state, and leakage of the detection liquid filled in the space portion. It is done.
Note that the change in the state of the space portion in the present disclosure usually involves at least a physical change. Since the change in the state of the space portion is a physical change, the penetrating wound can be detected by the user in a short time. Note that the change in the state of the space portion in the present disclosure may be a chemical change, for example. As an example of the chemical change, when the change in the state of the space portion is leakage of the detection liquid, a change in the color of the detection liquid due to a chemical reaction between the detection liquid and air may be mentioned.

  The change in the state of the space part in the detection promoting function is appropriately determined depending on the state of the space part before the penetrating wound part is generated. Hereinafter, the case where the state of the space part is a state filled with gas, the state where the pressure is reduced from the external pressure, and the case where the state is filled with the detection liquid will be described.

(I) State filled with gas In the present disclosure, the state of the space part is a state filled with gas, and the change in the state of the space part is leakage of gas from the space part. Also good. In this case, as shown in FIG. 3C and FIG. 3D, when the penetrating wound portion P occurs, the user visually observes the leakage of the gas Gas from the space portion S as the deflation of the cover member 3. Can be recognized. Further, the user can recognize the pressure of the gas Gas leaked and the cover member 3 withered by touching the article 10.

The pressure of the gas filled in the space part, that is, the pressure of the space part is not particularly limited as long as the user can recognize the leakage of gas from the space part due to the penetrating wound part. It is preferable that the pressure be equal to or higher than the atmospheric pressure. Moreover, as a pressure of a space part, what is necessary is just a pressure of the grade which a space part is not destroyed by the pressure of the gas with which it filled. The pressure of the space portion can be appropriately selected according to the position of the space portion, the types of the bag member and the cover member, and the like.
For example, the pressure in the space portion is preferably 10 kPa or more and 500 kPa or less. An example of a method for measuring the pressure in the space part is a method of measuring the pressure in the space part by using a digital pressure gauge KDM30 manufactured by Krone Co., Ltd. and piercing a piercing needle.
For example, the pressure in the space portion is usually equal to the filling pressure when filling the space portion with gas during the manufacture of the article.

  The gas filled in the space portion is not particularly limited as long as it does not change the liquid in the article, and examples thereof include air. Moreover, as said gas, inert gas, such as nitrogen and argon (Ar), is mentioned, for example. When the gas filled in the space portion is air, the manufacturing cost of the article can be reduced. On the other hand, in the case where the bag member is in direct contact with gas in the space portion, if the liquid stored in the bag member has a property of hating oxygen in the air, the gas filled in the space portion is an inert gas. Preferably there is.

In the present disclosure, when manufacturing an article, the space portion may be filled with a gas, or the space portion may be disposed by using a film material filled with a gas in advance for the cover member.
In addition, it is estimated that the detection promotion function in the space part with which gas was filled expresses, for example, also when the bag member is filled with gas.

(Ii) State depressurized from external pressure In the present disclosure, the state of the space portion is a state depressurized from the external pressure of the article, and the change in the state of the space portion is the space portion. It may be an inflow of gas. The gas flowing into the space is appropriately determined according to the use environment of the article, but is usually air. When the state of the space portion is a state where the pressure is reduced from the external pressure, when the penetrating wound portion P is generated as shown in FIGS. The inflow of gas can be visually recognized as the swelling of the cover member 3. Further, the user can recognize the swelling of the cover member 3 by touching the article 10.

The pressure of the gas in the space portion, that is, the pressure of the space portion is lower than the pressure outside the article. The pressure in the space portion is not particularly limited as long as the user can recognize the inflow of gas from the space portion due to the penetrating flaw portion, and is preferably lower than atmospheric pressure.
The pressure in the space part is preferably, for example, from −0.1 MPa to −0.01 MPa with respect to the standard atmospheric pressure (0.1013 MPa).
Moreover, the pressure of a space part becomes a pressure normally equivalent to the pressure when making a space part into a pressure reduction state at the time of manufacture of articles | goods, for example. More specifically, when the cover member is formed using a heat seal method, heat sealing is performed under a negative pressure atmosphere. In this case, the pressure of the space part obtained becomes a pressure equivalent to the atmospheric pressure of the negative pressure atmosphere, for example.

  In addition, it is estimated that the detection promotion function in the decompressed space part is expressed even when the inside of the bag member is decompressed, for example.

(Iii) State filled with detection liquid In the present disclosure, the state of the space portion is a state filled with the detection liquid, and a change in the state of the space portion is caused by the detection from the space portion. Liquid leakage may also be used. In this case, as shown in FIGS. 5C and 5D, when the penetrating wound portion P is generated, the user recognizes leakage of the detection liquid L from the space portion S by touching the article 10. can do. Further, the user can also visually recognize the leakage of the detection liquid L.

As for the liquid filling rate in the space portion, it is particularly possible if the leakage of the detection liquid due to the penetrating flaw can be recognized by the user regardless of the outermost portion of the cover member. It is not limited. The liquid filling rate in the space portion may be, for example, 50% or more. The filling rate of the liquid may be 100%. By making the filling rate of the liquid in the space part within the above-described range, by performing an operation such as turning the article upside down before using the article, the liquid can easily touch the entire space at least once, It is possible to easily detect the penetrating wound due to leakage of the detection liquid.
The liquid filling rate is a value expressed as a percentage of the ratio of the volume of the liquid to the volume of the space portion.

  The liquid used for the detection liquid is not particularly limited as long as it does not change the liquid in the article. The detection liquid may be water, for example. In addition, the detection liquid may contain a substance that changes color when exposed to oxygen, such as iron (II) chloride. For example, when iron (II) chloride or the like is included, the detection liquid discolors when it comes into contact with oxygen in the air, so that the penetrating wound can be more easily detected by the user. Because you can. When the detection liquid contains iron chloride or the like, the base material used for the cover member preferably has a high gas barrier property. Further, the detection liquid may contain, for example, a surfactant. This is because by reducing the surface tension of the detection liquid, leakage of the detection liquid from the penetrating flaw portion in the cover member can be promoted.

  In the present disclosure, when the article is manufactured, the space portion may be filled with a liquid, or the space portion may be disposed by using a film material filled with the liquid in advance for the cover member.

(2) Position of Space Part The position of the space part in the present disclosure is not particularly limited as long as it is located closer to the bag member than the outermost part of the cover member. For example, the space portion may be disposed between the bag member and the cover member. In addition, for example, when the cover member has a multiple structure in which at least two base materials are overlapped, the space portion may be disposed between the two base materials of the cover member. Hereinafter, each case will be described.

(I) Between a bag member and a cover member When a space part is arrange | positioned between a bag member and a cover member, a space part becomes a structure located in the cover member side most in a bag member. For example, as shown in FIGS. 1A to 1C, when one cover member 3 is arranged so as to cover the entire bag member 2, the space portion S is the same as the entire bag member 2. It is arranged between one cover member 3. Further, for example, as shown in FIGS. 6A to 6C, when the plurality of cover members 3a and 3b are arranged so as to cover one bag member 2 for each part, the space portion S is one. It can arrange | position between the one bag member 2 and each cover member 3a, 3b. For example, in FIGS. 6A to 6C, the cover member 3 includes a first cover member 3 a that covers the dispensing member 21 of the bag member 1 and a second cover member 3 b that covers the body member 22. The case where it has is shown.
Further, for example, as shown in FIGS. 7A to 7C, when one cover member 3 is arranged so as to cover only a part of one bag member 2, the space portion S is It can be arranged between a part of one bag member 2 and one cover member 3.
6A to 6C and FIGS. 7A to 7C are schematic views illustrating the article of the present disclosure, and FIGS. 6B and 7B are FIGS. FIGS. 6A and 7C are explanatory diagrams for explaining the arrangement of the liquid, the bag member, and the cover member in the article shown in FIG. 7A. FIG. 6C and FIG. It is explanatory drawing explaining the space part in b).

When the space portion is disposed between the bag member and the cover member, the size of the space portion is, as long as the user can recognize the change in the state of the space portion, the size of the article, It can select suitably according to a use etc.
As the size of the space portion, for example, the ratio of the volume of the cover member to the volume of the portion of the bag member covered by the cover member may be 1.1 times or more and 2 times or less. preferable.
The “portion of the bag member covered with the cover member” means a portion of the bag member covered with the base material of the cover member that is located on the outer side of the article when viewed from the space portion. For example, in the example shown in FIG. 1B, the entire bag member 2 corresponds to “a portion of the bag member covered with the cover member”. Further, for example, in the example shown in FIG. 7B, the entire body portion of the bag member corresponds to “a portion of the bag member covered with the cover member”.

  The size of the space portion can be appropriately determined by adjusting the ratio of the volume of the cover member to the bag member, for example.

  When the space portion is disposed between the bag member and the cover member, the gas or the detection liquid and the bag member are in direct contact with each other in the space portion, so that the space portion is filled with gas. It is preferable that the state is a reduced pressure state. This is because when the liquid in the article is used, the article is easy to handle because it is not necessary to remove the detection liquid.

(Ii) Between the two base materials of the cover member When the space portion is disposed between the two base materials in the multiple structure of the cover member, the space portion is disposed at a position surrounded by the two base materials. . In this case, as shown in FIGS. 2A to 2C, an isolation portion T may be arranged between the bag member 2 and the cover member 3, and as shown in FIG. A space portion S may be further disposed between the member 2 and the cover member 3. When arranging the space portions in an overlapping manner, the inner space portion close to the bag member is filled with an inert gas, and the outer space portion, which is the outer side of the article, is filled with liquid, thereby filling the space portion. The risk that the liquid has some influence on the liquid filled in the bag portion can be reduced.

As shown in FIGS. 2A to 2C, when the cover member 3 has a multiple structure in which only the two base materials 31 and 32 are overlapped, the space portion S is between the two base materials 31 and 32. Placed in.
On the other hand, although not shown, when the cover member has a multiple structure in which three or more base materials are stacked, the space portion may be disposed between at least two base materials in the multiple structure. It is preferable to arrange | position between the base material located in the outermost part of a member, and the adjacent base material. This is because the detection promotion function is easily exhibited. In this indication, it may be arranged only between two base materials, and a plurality of space parts may be arranged in the overlapping direction of a plurality of base materials in a multiple structure.

  Moreover, when a space part is arrange | positioned between the two base materials of a cover member, in the surface direction of a cover member, if at least 1 space part is arrange | positioned, it will not specifically limit. For example, as shown in FIGS. 2A to 2C, only one space portion S may be arranged in the surface direction of the cover member 3. Further, as shown in FIGS. 9A and 9B, a plurality of space portions S may be arranged in the surface direction of the cover member 3. For example, when a plurality of space portions are arranged in the surface direction of the cover member, it is possible to reduce variations in the state of each space portion, specifically, a bias of gas to be filled and a bias of detection liquid.

In the case where a plurality of space portions are arranged in the surface direction of the cover member, the number of space portions can be appropriately selected according to the type and size of the article, and is not particularly limited. There may be four or more, or six or more. The number of space portions may be, for example, 2000 or less, 1000 or less, or 500 or less.
In the present disclosure, it is preferable that the number of space portions is small from the viewpoint of making it easier to detect penetrating flaws. When a plurality of space portions are arranged in the surface direction of the cover member, the cover member is provided with a partition portion for separating the individual space portions. A partition part is a non-filling part which is not normally filled with air, a liquid, etc., and does not have a detection promotion function. Therefore, by reducing the number of space parts, the area of the partition part (non-filling part) occupying the area of the entire cover member can be reduced, and the area of the space part having a detection promoting function can be increased. .

In the case where a plurality of space portions are arranged in the surface direction of the cover member, examples of the shape of the space portion in plan view include a circular shape, an elliptical shape, and a polygonal shape. In the case of a polygonal shape, a triangular shape, a quadrangular shape, a pentagonal shape, a hexagonal shape, an octagonal shape, and the like can be given.
In addition, the size of the space portion in plan view can be appropriately selected according to the type and size of the article, and is not particularly limited. For example, the size may be 0.5 cm or more, or 0.7 cm or more. It may be 1 cm or more. Further, the size of the space portion in plan view may be, for example, 10 cm or less, or 5 cm or less.
The size of the space portion in plan view refers to the maximum value of the diameter of one space portion in plan view, for example, the distance indicated by x in FIG.

  The ratio of the volume of the base material of the cover member arranged on the article side of the space portion to the volume of the portion covered by the cover member in the bag member is the item “(i) Between the bag member and the cover member” described above. It is preferable to be within the numerical range described above. In the present disclosure, for example, when a plurality of space portions are arranged so as to overlap as shown in FIG. 8, the ratio of the volume of the base material of the cover member that constitutes the space portion arranged on the outermost side and The ratio of the ratio of the portion of the bag member covered by the cover member to the volume is preferably within the numerical range described in the above-mentioned section “(i) Between the bag member and the cover member”.

(3) Others The space part in the present disclosure only needs to have a detection promoting function that prompts the user to detect a penetrating wound part. For example, the second part prompts the user to detect a wound part other than the penetrating wound part. It may or may not have a detection promoting function, but the latter is more preferable. Examples of scratches other than penetrating scratches include scratches and dents.

2. Cover member A cover member is a member arrange | positioned so that at least one part of a bag member may be covered. Moreover, a cover member is a member used in order to arrange | position the space part mentioned above in articles | goods.

(1) Arrangement of Cover Member The arrangement of the cover member in the present disclosure is not particularly limited as long as at least a part of the bag member can be covered. For example, the cover portion may be arranged to cover the entire bag member. The cover member may be arranged so as to cover only a part of the bag member.

  When the cover member is disposed so as to cover the entire bag member, for example, one cover member may be disposed so as to cover the entire bag member. By disposing one cover member so as to cover the entire bag member, it is possible to detect a penetrating wound portion of the cover member in an unopened article (liquid storage bag and liquid). Therefore, it is possible to detect a decrease in the reliability of the liquid in the unopened article. Specifically, as shown in FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) and 2 (b), one cover member 3 is arranged so as to cover the entire bag member 2, The outermost penetrating flaw part of the cover member in the unopened article can be detected.

  When arrange | positioning so that a cover member may cover the whole bag member, you may arrange | position so that a bag member may be covered for every part using a some cover member. As an example, when the bag member has a spout and a body part, the bag member may have a first cover member that covers the spout and a second cover member that covers the body part. It is possible to detect a penetrating flaw of the cover member in an unopened article (liquid storage bag and liquid), and it is possible to detect a decrease in the reliability of the liquid in the article when not opened. On the other hand, when the article is opened, only the first cover member covering the spout can be removed and used. That is, even after the article is opened, the liquid in the article can be used in a state where the second cover member covering the body portion is disposed on the bag member. Therefore, if a penetrating flaw is generated in the second cover member for some reason during use of the liquid, the penetrating flaw can be detected and the use of the liquid can be stopped. Specifically, as shown in FIGS. 6A to 6C, the cover member 3 includes a first cover member 3 a that covers the extraction member 21 of the bag member 1, and a second cover that covers the body member 22. When the cover member 3b is provided, the penetrating wound portion can be detected by the first cover member 3a and the second cover member 3b before the article 10 is opened. Further, at the timing of opening the article, the first cover member 3a can be removed and only the second cover member 3b can be placed on the bag member 2. After opening the article, it is possible to detect a penetrating wound portion generated in the second cover member 3b and to stop using the liquid.

On the other hand, when the cover member covers only a part of the bag member, the cover member can be arranged at an arbitrary position according to the shape of the bag member. For example, when a bag member has a spout and a body part, it is preferable that the cover member is arrange | positioned so that all the body parts may be covered.
In the case where the cover member is arranged so as to cover the body portion, when it is used as an article, it is possible to detect a penetrating wound portion generated in the cover member when not opened. Further, when a penetrating flaw is generated in the cover member during use of the liquid, the penetrating flaw is detected and the use of the liquid can be stopped. Specifically, as shown in FIGS. 7A to 7C, when the cover member 3 is disposed so as to cover the body member 22 of the bag member 2, the cover is not opened and the liquid is being used. When a penetrating flaw is generated in the member 3, the penetrating flaw is detected and the use of the article itself or the use of the liquid can be stopped.
Moreover, when the cover member is disposed so as to cover the body portion, the cost can be reduced.

The cover member may be disposed so as to be joined to at least a part of the bag member, or may be disposed separately from the bag member. In the case where the cover member is disposed so as to be joined to at least a part of the bag member, for example, the bag member and the cover member may constitute a multiple bag.
As described above, when the cover member is arranged so as to cover the entire bag member and both are separated, the bag member can be regarded as a primary bag and the cover member can be regarded as a secondary bag.

(2) Structure of cover member The cover member in this indication usually has at least one substrate. The cover member may have only one base material, or may have a multiple structure in which a plurality of base materials are stacked. In the case of a multi-layer structure in which a plurality of base materials are superposed, the number of base materials is not particularly limited, but is preferably 2 or more and 4 or less, and more preferably two.

The substrate used for the cover member is preferably a resin film material. As the resin film material, a known material can be used as a film material or a sheet material used for a general liquid storage bag. In the present disclosure, “film” and “sheet” are synonymous.
Moreover, it is preferable to select suitably as resin film material used for a cover member according to the state of a space part. For example, when the state of the space portion is a state filled with gas or a state where the pressure is reduced, a film having a high gas barrier property is preferable. For example, a laminated film of polyethylene and nylon, ethylene- Examples thereof include a film containing a vinyl alcohol copolymer.

  As another example of the base material used for the cover member, for example, a shrinkable material such as rubber may be used. This is because, when the state of the space portion is a state filled with gas or detection liquid, the gas or the detection liquid is easily pushed out, so that the change in the state of the space portion can be easily recognized.

  Further, when the cover member has a multiple structure in which at least two base materials are overlapped, for example, an air cap-shaped film material may be used.

  The thickness of the base material used for the cover member is not particularly limited as long as it causes a through-scratched part, but is preferably 10 μm or more and 150 μm or less, and more preferably 20 μm or more and 90 μm or less. This is because the detection accelerating function can be satisfactorily exhibited even for fine penetrating scratches.

The form of the cover member is not particularly limited as long as it is arranged so as to cover at least a part of the bag member. For example, the cover member may have a bag shape that covers the entire bag member, or a bag shape that covers a part of the bag member. It may be. When the cover member has a bag shape covering the entire bag member, a general bag shape can be adopted as the bag shape of the cover member. When the cover member has a bag shape, for example, the cover member is preferably formed into a bag shape by bonding the base materials of the cover member. As a method for adhering the base materials, for example, the base materials may be bonded via an adhesive layer, or the base materials may be directly contacted to each other by heat welding or the like.
On the other hand, when the cover member has a bag shape that covers a part of the bag member, the cover member preferably has a bag shape that covers the body portion of the bag member. In this case, it is preferable that a part of the cover member and the bag member are joined.
Further, when the cover member is formed in a bag shape, for example, an inflation molding method can be suitably used. It is because the part which adhere | attaches base materials can be decreased and the area of the part which can exhibit a detection promotion function can be enlarged.

3. Bag member A bag member is a member which stores a liquid. If a bag member can accommodate a liquid, it will not specifically limit about the form. Usually, it has a spout for taking liquid into and out of the bag member and a body part for holding the liquid. The spout and the body part may be constituted by one member or may be constituted by a plurality of members. When the bag member is composed of a plurality of members, typically, a configuration having a pouring member having a spout and a body member having a body portion can be given. As the dispensing member, typically, a resin injection molded body can be used. As the body member, a film material can be typically used.
The material, form, and the like used for the bag member are appropriately selected according to the use of the liquid storage bag. Since it can be the same as that of the material and form used for a well-known liquid storage bag, description here is abbreviate | omitted.

  When the bag member has a pouring member, the bag member may further include a lid member for closing the pouring port. An example of the lid member is a general cap. Moreover, when a bag member has a pouring member, you may have further the sealing member which seals a spout. An example of the sealing member is a tamper film.

4). Liquid The liquid in the present disclosure is a content stored in the bag member. Since the example of the liquid has been described in the above-mentioned definition of “liquid”, the description thereof is omitted here. The liquid in the present disclosure is more preferably a drug solution or an infusion solution. Chemical solutions and infusion solutions need to be extremely reliable. In addition, it is desired that an article having a drug solution or an infusion solution can easily detect a penetrating wound in a short time in order to avoid a risk of foreign matter contamination.
Since the user of the present disclosure can easily detect a penetrating wound, the risk of using a chemical solution with reduced reliability can be reduced.

5). Others The article of the present disclosure may further include a solid as the contents of the bag member in addition to the liquid described above.
The article of the present disclosure can be used for an article having the liquid exemplified in the items of definition and explanation of “liquid” described above, and among them, it is preferable for medical use.

  Examples of the manufacturing method of the article of the present disclosure include the following methods. FIGS. 10A, 10B, 11A, and 11B are process diagrams illustrating a method for manufacturing an article of the present disclosure. As shown in FIGS. 10A and 11A, a bag-like cover member 3 having a bag member 2 and an opening 3A is prepared. Next, the liquid is stored in the bag member. Next, from the opening 3A of the cover member 3, a process for adjusting the state of the space part, such as a process for filling with gas, a process for reducing pressure, or a process for filling with a detection liquid, is performed. Next, the articles 10 shown in FIGS. 10B and 11B can be manufactured by closing the opening 3A by directly bonding the base materials of the cover member 3 by heat welding. In addition, as shown to Fig.11 (a), (b), when the cover member 3 is arrange | positioned so that only the trunk | drum member 22 may be covered without covering the pouring member 21 of the bag member 2, it fills with a liquid. Before doing so, you may perform the process which adjusts the state of a space part.

B. Liquid Storage Bag The liquid storage bag of the present disclosure is a liquid storage bag used for the article described in “A. Article” described above, and includes the bag member and the cover member. The space portion is arranged closer to the bag member than the outside.

  12A and 12B are schematic views showing examples of the liquid storage bag of the present disclosure, and FIG. 12B is an explanatory diagram for explaining the arrangement of the bag member and the cover member in FIG. It is. As illustrated in FIGS. 12A and 12B, the liquid storage bag 20 of the present disclosure includes a bag member 2 and a cover member 3. Further, in the liquid storage bag 20, the space portion S is disposed on the bag member 2 side from the outermost part of the cover member 3. The liquid storage bag 20 shown in FIGS. 12A and 12B can be used for the article 10 shown in FIGS. 7A and 7B, for example.

  According to this indication, since the space part which has a detection promotion function is arranged, when a penetration flaw part arises, it can be set as the liquid storage bag which can detect a penetration flaw part easily.

In the liquid storage bag of the present disclosure, the cover portion is disposed so as not to cover the spout of the bag member. When the space part is disposed between the bag member and the cover member, the space part is generally disposed between a part of the bag member and the cover member. Moreover, when the space part is arrange | positioned between the two base materials in the multiple structure of a cover member, if a space part is a position which does not cover the spout of a bag member, it can select and arrange | position suitably. .
The details of the bag member, the cover member, and the space portion are the same as the contents described in the section “A. Article” described above, and thus the description thereof is omitted here.

  The liquid storage bag of the present disclosure can be used for the above-described “A. article”, but is particularly preferably used for an article having a chemical solution or an infusion solution. That is, the liquid storage bag of the present disclosure is preferably an infusion bag.

  In addition, this indication is not limited to the said embodiment. The above-described embodiment is an exemplification, and the present invention has the same configuration as the technical idea described in the claims of the present disclosure and has the same function and effect regardless of the present embodiment. It is included in the technical scope of the disclosure.

  The present disclosure will be described in more detail with reference to the following examples.

[Comparative example]
As a bag member, a bag made of a polypropylene film with a thickness of 250 μm and a size of 13 cm × 20 cm was prepared. The bag member was filled with water and sealed to obtain a sample. The polypropylene film having a thickness of 250 μm is a film used as a material for general infusion bags.

[Evaluation 1]
The above sample was pierced with a needle from the outside to cause a penetrating wound, and whether or not the penetrating wound was detected was evaluated by the following confirmation methods 1 to 3. The case where a 33G needle (outer diameter 0.2 mm) and an 18G needle (outer diameter 1.2 mm) were used as the needles were evaluated. In the evaluations 2 to 6 of Examples described later, the cases where a 33G needle and an 18G needle were used were evaluated.
As confirmation method 1, when the leakage of water is observed within 5 minutes by visual observation with the sample placed on the desk, ○ is indicated when no leakage of water is observed after 5 minutes. evaluated. In addition, as confirmation method 2, when the sample was held by hand, the case where water leakage was confirmed was evaluated as ◯, and the case where water leakage was not confirmed was evaluated as x. As confirmation method 3, when the sample was manually pressurized, the case where water leakage was confirmed was evaluated as ◯, and the case where water leakage was not confirmed was evaluated as x. The results are shown in Table 1.

  From the result of the comparative example, it was confirmed that it is difficult to visually detect the penetrating wound using the 18G needle by the confirmation method 1. Further, it was confirmed that it is difficult to detect the penetrating wound portion using a 33G needle by the visual confirmation method 1 and the touch confirmation method 2.

[Example 1-1 to Example 1-4]
Articles in a state where the space was filled with gas were produced, and the detection promotion function by gas leakage was evaluated.

[Example 1-1]
Similarly to the sample of the comparative example, a bag member made of a polypropylene film having a thickness of 250 μm and having a size of 13 cm × 20 cm was prepared, filled with water, and sealed. Next, three sides of a polyethylene film having a thickness of 20 μm were heat sealed to prepare a bag-shaped cover member. The size of the cover member was 18 cm × 30 cm. The bag member filled with water was put into the bag-shaped cover member, filled with air so that the pressure in the space portion was 30 kPa (0.03 MPa), and the fourth side was heat-sealed. Articles were obtained by the above procedure.

[Example 1-2 to Example 1-4]
Articles were obtained in the same manner as in Example 1-1 except that polyethylene films having thicknesses of 40 μm, 90 μm, and 200 μm were used as the cover members, respectively.

[Evaluation 2]
The cover member of the article obtained in Example 1-1 to Example 1-4 was pierced with a needle from the outside, and whether or not a penetrating wound part could be detected due to the loss of air was evaluated. As confirmation method 4, when the article is visually observed with the article placed on the desk within 5 minutes, the cover member is observed to be deflated after 5 minutes. The case where there was not was evaluated as x. The results are shown in Table 1.
In addition, as confirmation method 5, when the article was held by hand, the case where air leakage was confirmed was evaluated as ◯, and the case where air leakage was not confirmed was evaluated as x. The results are shown in Table 2.

From the results of Example 1-1 to Example 1-4, for the penetrating wound portion using the 18G needle, detection by gas leakage is performed by any of the confirmation methods 4 and 5. It was confirmed that this can be done easily. In the comparative example, it was difficult to visually detect, but in Examples 1-1 to 1-4, it was confirmed that visual detection was possible.
For the penetrating wound using a 33G needle, Examples 1-1 to 1-3 in which the cover member has a thickness of 20 μm, 40 μm, and 90 μm are the same as those in Confirmation Method 4 and Confirmation Method 5. It was confirmed that detection by gas leakage can be easily performed by any of the confirmation methods. In the comparative example, it was difficult to detect by visual observation and touch, whereas in Examples 1-1 to 1-3, it was confirmed that detection by visual inspection and touch was possible. On the other hand, in Example 1-4, it was confirmed that it was difficult to perform detection due to gas leakage by any of the confirmation methods 4 and 5. This is presumably because the cover member was as thick as 200 μm and the gas leakage did not proceed sufficiently.

[Example 2-1 to Example 2-4]
Articles in which the cover member has a plurality of space portions and each space portion is filled with gas, that is, an article having an air cap-shaped cover member, were produced, and the detection promoting function by gas leakage was evaluated.

[Example 2-1]
A polyethylene film bag having a thickness of 20 μm was filled with air to a volume of about 80% to produce two bags of size 17 cm × 24 cm. The long sides of the two produced bags were bonded together to produce an air cap-shaped cover member having two space portions. A bag member filled with water was inserted between two air cap-shaped cover members to obtain an article. The size of the bag member was 13 cm × 20 cm.

[Example 2-2 to Example 2-4]
Articles were obtained by the same method as in Example 2-1, except that polyethylene films having thicknesses of 40 μm, 90 μm, and 200 μm were used as the cover members, respectively.

[Evaluation 3]
With respect to the cover members of the articles obtained in Example 2-1 to Example 2-4, the above-described confirmation method 4 and whether or not the penetrating wound portion can be detected by piercing a needle from the outside and removing air Evaluation was performed by confirmation method 5. The results are shown in Table 3.

From the results of Example 2-1 to Example 2-4, for the penetrating wound portion using the 18G needle, detection by gas leakage is performed by any of the confirmation methods 4 and 5. It was confirmed that this can be done easily. In the comparative example, it was difficult to visually detect, but in Examples 2-1 to 2-4, it was confirmed that visual detection was possible.
For the penetrating wound using a 33G (φ0.2 mm) needle, Example 2-1 to Example 2-3 in which the cover member has a thickness of 20 μm, 40 μm, and 90 μm are the confirmation method 4 Further, it was confirmed that detection by gas leakage can be easily performed by any of the confirmation methods of the confirmation method 5 and the confirmation method 5. In the comparative example, it was difficult to detect by visual observation and touch, but in Examples 2-1 to 2-3, it was confirmed that detection by visual inspection and touch was possible. On the other hand, in Example 2-4, it was confirmed that it was difficult to perform detection due to gas leakage by any of the confirmation methods 4 and 5. This is presumably because the cover member was as thick as 200 μm and the gas leakage did not proceed sufficiently.

[Example 3-1 to Example 3-3]
Articles in a state where the space was filled with detection liquid were produced, and the detection promoting function by leakage of the detection liquid was evaluated.

[Example 3-1]
Similarly to the sample of the comparative example, a bag member made of a polypropylene film having a thickness of 250 μm and having a size of 13 cm × 20 cm was prepared, filled with water, and sealed. Next, three sides of a polyethylene film having a thickness of 20 μm were heat sealed to prepare a bag-shaped cover member. The size of the cover member was 18 cm × 30 cm. The bag member filled with water was put into the bag-shaped cover member and filled with the detection liquid up to about 80% of the volume of the space part, and then heat sealed on the fourth side to obtain an article. As the detection solution, a solution obtained by adding a surfactant to water was used.

[Example 3-2 to Example 3-3]
An article was obtained by the same method as in Example 3-1, except that polyethylene films having thicknesses of 40 μm and 90 μm were used as the cover member.

[Evaluation 4]
With respect to the cover members of the articles obtained in Example 3-1 to Example 3-3, needles were pierced from the outside, and the possibility of detection of penetrating wounds due to leakage of the detection liquid was evaluated. As confirmation method 6, when leakage of the detection liquid was observed within 5 minutes by visual observation with the article placed on the desk, ○ no leakage of the detection liquid was observed after 5 minutes The case was evaluated as x. Further, as confirmation method 7, when the article was held by hand, the case where leakage of the detection liquid was confirmed was evaluated as ◯, and the case where leakage of the detection liquid was not confirmed was evaluated as x. As confirmation method 8, when pressure was applied to the article by hand, the case where leakage of the detection liquid was confirmed was evaluated as ◯, and the case where leakage of the detection liquid was not confirmed was evaluated as x. The results are shown in Table 4.

From the results of Example 3-1 to Example 3-3, for the penetrating wound using the 18G needle, detection by leakage of the detection liquid is performed by any of the confirmation methods 6-8. It was confirmed that this can be done easily. In the comparative example, it was difficult to visually detect a penetrating wound portion using an 18G needle, whereas in Example 3-1 to Example 3-3, visual detection may be possible. confirmed.
Further, although it was difficult to detect the penetrating wound portion using the 33G needle by the confirmation method 6, the detection by the leakage of the detection liquid can be easily performed by any of the confirmation methods 7 and 8. It was confirmed that can be done. In the comparative example, it was difficult to detect by touch the penetrating wound portion using the 33G needle, but in Examples 3-1 to 3-3, detection by touch becomes possible. It was confirmed.

[Example 4-1 to Example 4-6]
Articles in a state where the cover member has a plurality of space portions and each space portion was filled with the detection liquid were prepared, and the detection promoting function by leakage of the detection liquid was evaluated.

[Example 4-1]
Two bags of size 17 cm × 24 cm were prepared by filling a polyethylene film bag having a thickness of 20 μm with water as a detection liquid up to about 80% of the volume. The long sides of the two produced bags were bonded together to produce an air cap-shaped cover member having two space portions. A bag member filled with water was inserted between two air cap-shaped cover members to obtain an article. The size of the liquid storage bag was 13 cm × 20 cm.

[Example 4-2 to Example 4-3]
An article was obtained by the same method as in Example 4-1, except that polyethylene films having thicknesses of 40 μm and 90 μm were used as the cover member.

[Example 4-4 to Example 4-6]
Articles were obtained by the same method as in Example 4-1 to Example 4-3, except that instead of water, a detection liquid was added with a surfactant in addition to water.

[Evaluation 5]
The above-described confirmation method for whether or not the penetrating wound portion can be detected by piercing the needle from the outside with respect to the cover member of the article obtained in Example 4-1 to Example 4-6 and leaking the detection liquid. Evaluation was performed using 6 to 8 confirmation methods. The results are shown in Table 5.

From the results of Example 4-1 to Example 4-3, for the penetrating wound portion using the 18G needle, detection by leakage of the detection liquid is performed by any of the confirmation methods 6 to 8. It was confirmed that this can be done easily. Further, although it was difficult to detect the penetrating wound portion using the 33G needle by the confirmation method 6, the detection by the leakage of the detection liquid can be easily performed by any of the confirmation methods 7 and 8. It was confirmed that can be done.
Further, from the results of Example 4-4 to Example 4-6, detection was performed by any of the confirmation methods 6 to 8 on the penetrating wound portion using any of 18G and 33G needles. It was confirmed that detection due to leakage of the working solution can be easily performed.
From the results of Example 3-1 to Example 3-3 and Example 4-4 to Example 4-6, it is easier to detect the penetrating wound part by filling the plurality of space parts with the detection liquid. It was suggested that it can be done.

[Example 5-1 to Example 5-4]
Articles in a state where the pressure in the space portion was reduced from the external pressure were prepared, and the detection promotion function by gas inflow was evaluated.

[Example 5-1]
A bag member having a size of 13 cm × 20 cm was prepared and filled with water so that air did not enter. Next, three sides of a polyethylene film having a thickness of 20 μm were heat sealed to prepare a bag-shaped cover member. The size of the cover member was 18 cm × 30 cm. The bag member filled with water was put into the bag-shaped cover member, and the fourth side was sealed under an atmosphere of -0.1 MPa. Articles were obtained by the above procedure.

[Example 5-2 to Example 5-4]
An article was obtained by the same method as in Example 5-1, except that polyethylene films having thicknesses of 40 μm, 90 μm, and 200 μm were used as the cover member.

[Evaluation 6]
The cover member of the article obtained in Example 5-1 to Example 5-4 was stabbed with a needle from the outside, and whether or not a penetrating wound was detected due to inflow of air was evaluated. As confirmation method 9, when the bulge of the cover member is observed within 5 minutes by visual observation with the article placed on the desk, ○ when the bulge of the cover member is not observed after 5 minutes Was evaluated as x. The results are shown in Table 6.

  From the results of Example 5-1 to Example 5-3, it was confirmed that the detection by the inflow of air can be easily performed for the penetrating wound portion using the 33G needle and the 18G needle. . In the comparative example, it was difficult to visually detect the penetrating wound portion using the 33G and 18G needles, whereas in Example 5-1 to Example 5-3, it was possible to detect visually. It was confirmed. In addition, in the result of Example 5-4, although it was confirmed that the penetration wound portion using the 18G needle can be easily detected by the inflow of air, the penetration using the 33G needle It was confirmed that it was difficult to detect the damaged part due to the inflow of air. The reason is presumed that the cover member is as thick as 200 μm, and the inflow of gas into the space portion did not proceed sufficiently.

DESCRIPTION OF SYMBOLS 1 ... Liquid 2 ... Bag member 3 ... Cover member 10 ... Goods 20 ... Liquid storage bag S ... Space part

Claims (7)

An article having a liquid, a bag member for storing the liquid, and a cover member arranged to cover at least a part of the bag member,
Space parts isolated from the inside of the bag member and the outside of the article are arranged on the bag member side from the outermost part of the cover member,
The space portion has a detection promoting function that prompts the user to detect the penetrating wound portion when a penetrating wound portion generated on the outermost part of the cover member reaches the space portion,
The article, wherein the detection promoting function is a function of prompting a user to recognize a change in the state of the space portion caused by the penetrating flaw portion, thereby prompting the user to detect the penetrating flaw portion. The state of the space portion is a state filled with gas,
The article according to claim 1, wherein the change in the state of the space portion is leakage of gas from the space portion. The state of the space part is a state where the pressure is reduced from the pressure outside the article,
The article according to claim 1, wherein the change in the state of the space part is an inflow of gas into the space part. The state of the space portion is a state filled with a detection liquid,
The article according to claim 1, wherein the change in the state of the space part is leakage of the detection liquid from the space part.   The article according to any one of claims 1 to 4, wherein the space portion is disposed between the bag member and the cover member. The cover member has a multiple structure in which at least two base materials are overlapped,
The article according to any one of claims 1 to 5, wherein the space portion is disposed between the two base materials. A liquid storage bag used for the article according to claim 1,
A liquid storage bag comprising the bag member and the cover member, wherein the space portion is disposed closer to the bag member than the outermost part of the cover member.