Patent Description:
In the field of medical devices and foodstuffs, packaging containers containing chemical agents such as oxygen absorbent and desiccant are used to store a product (stored item) that require sterility and dryness. In such a packaging container, for example, a containing space and a chemical agent containing space are separated by an inner lid or a diaphragm, and the stored item and the chemical agent are stored in the container (see, for example, Patent Document <NUM>). In this context, Patent Document <NUM> relates to a container for storing balls, in particular tennis balls, Patent Document <NUM> discloses a packaging system for goat cheese, and Patent Document <NUM> describes a packaging container for fermented foods, which employs a reactive absorbent composition.

However, in conventional packaging containers, the storage conditions of the stored item may deteriorate because the chemical agent requires a certain period of time to have an effect on the stored item, for example, as in the case where the stored item after removing oxygen, is oxidized by contact with oxygen.

The present disclosure is intended to provide a packaging container capable of quickly having an effect of a chemical agent on a stored item.

One embodiment of the present invention is intended to provide a packaging container that includes a first member; a second member configured to engage with the first member integrally, an inner lid disposed between the first member and the second member; a stored item containing part opening from an engaged portion of the first member that is engaged with the second member, and configured to contain a stored item; a chemical agent containing part opening from the engaged portion of the second member that is engaged with the first member, the chemical agent containing part being formed separately from the stored item containing part, and configured to contain a chemical agent; and a ventilation path in which the stored item containing part and the chemical agent containing part are in communication, the ventilation path being formed in an inner space defined by the first member and the second member, wherein the ventilation path is formed on a lateral side of the stored item containing part, characterized in that the packaging container further comprises:.

According to the present disclosure, a packaging container can be provided capable of quickly having an effect of a chemical agent on a stored item.

Hereinafter, embodiments will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same elements in each drawing are, as far as possible, designated by the same reference numerals, and the overlapping description is omitted.

In the following description, an x direction, a y direction, and a z direction are perpendicular to each other. The x direction and the y direction are typically horizontal directions, and the z direction is typically a vertical direction. The x direction is an extending direction of a long side of a packaging container <NUM>. The y direction is an extending direction of a short side of the packaging container <NUM>. For the sake of convenience, a z-positive side may be referred to as an upper side, and a z-negative side may be referred to as a lower side.

<FIG> is an assembly perspective view of a packaging container <NUM> according to an embodiment. <FIG> is an assembly perspective view showing the packaging container <NUM> shown in <FIG> as seen from below. <FIG> is a plan view of the packaging container <NUM> shown in <FIG> as seen from above. <FIG> is an exploded perspective view of the packaging container <NUM> shown in <FIG>. <FIG> is a perspective view illustrating a state of an inner lid <NUM> engaging with a main body <NUM> in an open state. <FIG> is a cross-sectional view along an A-A line in <FIG>, and shows a ventilation path <NUM>. <FIG> is a superimposed diagram showing a main body <NUM> in an open state and the inner lid <NUM>, and is a diagram showing a ventilation path <NUM>.

The packaging container <NUM> shown in <FIG> is a container that can contain a stored item <NUM> and a chemical agent <NUM> separately from each other so that the stored item <NUM> and the chemical agent <NUM> do not come into direct contact with each other, as shown in <FIG>.

The stored item <NUM> includes, for example, an absorbing membrane for tissue regeneration for oral surgery. The absorbing membrane for tissue regeneration, for example, is positioned between an artificial bone and soft tissue such as gums when implanting the artificial bone in a jaw during oral surgery, and is used to prevent adhesion between the artificial bone and the soft tissue. The absorbing membrane for tissue regeneration has properties that decompose by oxygen and water. Because the absorbing membrane decomposes and is absorbed in the body after a certain period of time after surgery, there is no need to perform surgery again to remove the absorbing membrane from the body. When the absorbing membrane for tissue regeneration is compressed or deformed by external forces, the above properties are liable to deteriorate.

The packaging container <NUM> is a container for holding the stored item <NUM> so as to prevent the stored item <NUM> from being subjected to external forces. As shown in <FIG> and <FIG>, the packaging container <NUM> has a configuration in which an upper portion protrudes in a substantially cross shape, thereby increasing the strength against external forces from the upper portion. Further, as shown in <FIG>, by forming the bottom face as a raised bottom, the stored item <NUM> is configured not to directly receive external forces from below.

For example, the absorbing membrane for tissue regeneration as the stored item <NUM> is formed in three kinds of rectangular shapes: <NUM> × <NUM>, <NUM> × <NUM>, and <NUM> × <NUM>, and one of the principal faces may be an adhesive face.

Further, because the absorbing membrane for tissue regeneration as the stored item <NUM> has decomposing properties by contacting with oxygen and moisture as described above, it is necessary to remove oxygen and moisture from the surroundings of the stored item <NUM> when the stored item <NUM> is placed in the packaging container <NUM>. For this purpose, a chemical agent <NUM> having the deoxygenating and/or dehydrating properties and capable of absorbing ambient oxygen and/or water is contained within the packaging container <NUM>.

By housing the stored item <NUM> and the chemical agent <NUM> within the packaging container <NUM>, the chemical agent <NUM> adsorbs oxygen and/or moisture around the stored item <NUM> so that the quality of the stored item <NUM> can be maintained. In addition, the packaging container <NUM> is preferably sealed in an aluminum bag while the stored item <NUM> and the chemical agent <NUM> are contained in the packaging container <NUM>. Thus, it is possible to prevent oxygen and/or moisture from entering from the outside, for example, from the aluminum bag, and the quality of the stored item <NUM> can be reliably maintained. Here, when sealing the aluminum bag or the like, the inside of the aluminum bag or the like is preferably degassed to a vacuum, and then filled with an inert gas such as nitrogen.

As shown in <FIG> and <FIG>, the packaging container <NUM> includes the main body <NUM> and the inner lid <NUM>. As shown in <FIG>, the main body <NUM> has a body part <NUM> (a first member) and a lid part <NUM> (a second member). The material of the packaging container <NUM> is, for example, a PET (polyethylene terephthalate) resin, which is transparent in this case, but each of the figures is shown as a non-transparent object for ease of viewing the shape.

As shown in <FIG> and <FIG>, the body part <NUM> and the lid part <NUM> of the main body <NUM> are formed in an approximately rectangular shape in a planar view and are integrally formed by connecting one long side of the body part <NUM> with one long side of the lid part <NUM> via a boundary portion <NUM>.

The body part <NUM> has a protruding part <NUM> protruding toward a side facing the lid part <NUM> and a lower first plane part <NUM> having a rectangular frame shape formed along an outer edge of the protruding part <NUM>.

The lid part <NUM> has a depression <NUM> formed by bending downward from a side facing the body part <NUM> and an upper first plane part <NUM> having a rectangular frame shape formed along an outer edge of the depression <NUM>.

By bending the boundary portion <NUM> along the long side of the body part <NUM> and the lid part <NUM>, the depression <NUM> is engaged with the protruding part <NUM> of the body part <NUM>, and the upper first plane part <NUM> and the lower first plane part <NUM> contact with each other. As a result, the packaging container <NUM> is assembled and a storage space is formed therein.

The protruding part <NUM> of the body part <NUM> has a lower second plane part <NUM> and a lower third plane part <NUM>. The lower second plane part <NUM> protrudes in a step-like manner along the inside of the lower first plane part <NUM> and is formed in a rectangular frame shape. The lower third plane part <NUM> is a rectangular plane disposed inside the lower second plane part <NUM> at a position between the lower first plane part <NUM> and the lower second plane part <NUM> in the z direction. The lower third plane part <NUM> forms a part of a stored item containing part <NUM>.

Further, grooves <NUM> forming part of the ventilation path <NUM> are disposed on both sides of the lower third plane part <NUM> in the x direction. The details of the ventilation path <NUM> will be described later. The grooves <NUM> are formed while being bent toward the negative z-direction from the face of the lower second plane part <NUM>, and the bottom faces of the grooves <NUM> are located on the z-positive side of the lower third plane part <NUM>. The groove <NUM> is approximately C-shaped, and both ends thereof are connected to the stored item containing part <NUM> at both ends of the rectangular short side of the lower third plane part <NUM>. Between the grooves <NUM> and the lower third plane part <NUM>, intermediate wall parts <NUM> are formed at the same height as that of the lower second plane part <NUM>. The intermediate wall parts <NUM> extend along the short sides of the rectangular shape of the lower third plane part <NUM>.

The long side portion of the lower third plane part <NUM> is defined by an inner peripheral surface <NUM> between the lower second plane part <NUM> and the lower third plane part <NUM>, and the short side portion is defined by the intermediate wall part <NUM> to form the lower portion of the stored item containing part <NUM>. A convex pattern <NUM> constituted of a plurality of hemispherical projections is formed on the surface of the lower third plane part <NUM>.

The depression <NUM> of the lid part <NUM> has an upper second plane part <NUM> and an upper third plane part <NUM>. The upper second plane part <NUM> is formed in a step-like manner as a depression along the inside of the upper first plane part <NUM>. The upper third plane part <NUM> is formed in a step-like manner as a depression relative to the upper second plane part <NUM>. The upper third plane part <NUM> is an approximate cross-shaped plane extending in the x and y directions in a plane view. The upper third plane part <NUM> forms a part of a chemical agent containing part <NUM>.

As shown in <FIG>, <FIG>, and <FIG>, an outer peripheral surface <NUM> between the lower first plane part <NUM> and the lower second plane part <NUM> of the body part <NUM> includes body-side locking parts <NUM> to engage with the lid part <NUM>. Further, as shown in <FIG>, <FIG>, <FIG>, and <FIG>, an inner peripheral surface <NUM> between the upper first plane part <NUM> and the upper second plane part <NUM> of the lid part <NUM> includes lid-side locking parts <NUM> to engage with the body part <NUM>. In the present embodiment, a pair of the body-side locking parts <NUM> is provided on a pair of short sides of a rectangular shape in a plan view of the outer peripheral surface <NUM>. A pair of the lid-side locking parts <NUM> is provided at positions facing each other when the body part <NUM> and the lid part <NUM> engage with each other, of the pair of short sides of the rectangular shape in a plan view of the inner peripheral surface <NUM>. Both the body-side locking part <NUM> and the lid-side locking part <NUM> are linear projections formed along the extending direction of the short sides.

The distance between the lid-side locking part <NUM> and the upper first plane part <NUM> is less than the distance between the body-side locking part <NUM> and the lower first plane part <NUM>. This configuration allows the lid-side locking part <NUM> to advance beyond the body-side locking part <NUM> and to be positioned between the body-side locking part <NUM> and the lower first plane part <NUM> during assembly. Thus, the movement of the lid part <NUM> of the lid-side locking part <NUM> toward the open side (the z-positive side of <FIG> and <FIG> and the lower second plane part <NUM> side) is regulated by the body-side locking part <NUM>. As a result, the body part <NUM> and the lid part <NUM> are engaged with each other.

Further, as shown in <FIG>, <FIG>, and <FIG>, a stop <NUM> for engagement is provided at a center of one of the pair of long sides of the upper first plane part <NUM> of the lid part <NUM> on the side without the boundary portion <NUM> between the body part <NUM> and the lid part <NUM>. The stop <NUM> is provided, for example, with a substantially semi-circular cut in a portion of the upper first plane part <NUM>. This cut is formed so that an arc projects toward the center of the container <NUM>, and the outer edge of the lower first plane part <NUM> of the body part <NUM> is inserted into the cut, as shown in <FIG> and <FIG>, and the body part <NUM> and the lid part <NUM> are firmly secured.

As shown in <FIG>, when the packaging container <NUM> is assembled, the inner lid <NUM> is disposed so that a first principal face <NUM> faces the lower second plane part <NUM> of the body part <NUM> and that a second principal face <NUM> faces the upper second plane part <NUM> of the lid part <NUM>. A frame projection <NUM> is erected at a position facing the lower third plane part <NUM> of the first principal face <NUM>. The frame projection <NUM> is formed in an approximately rectangular shape along the outline of the lower third plane part <NUM>. The long side portion of the frame projection <NUM> contacts the inner peripheral surface <NUM> of the lower second plane part <NUM>, thereby regulating a movement of the inner lid <NUM> in the y-direction, and the short side portion of the frame projection <NUM> contacts the intermediate wall part <NUM>, thereby regulating a movement of the inner lid <NUM> in the x-direction.

A convex pattern <NUM> of a plurality of hemispherical protrusions is formed inside the frame projection <NUM> of the first principal face <NUM>. When the packaging container <NUM> is assembled, the frame projection <NUM> of the inner lid <NUM> is engaged with the inner peripheral surface <NUM> of the lower second plane part <NUM> and the inside of the pair of intermediate wall parts <NUM>. At this time, the stored item containing part <NUM> is formed by the lower third plane part <NUM>, the first principal face <NUM> of the inner lid <NUM>, the pair of intermediate wall parts <NUM>, and the inner peripheral surface <NUM> of the lower second plane part <NUM>.

An ear part <NUM> is provided on both sides of the frame projection <NUM> of the inner lid <NUM> in the x-direction, and a recess <NUM> curved toward the frame projection <NUM> is provided at the center of the ear part <NUM> in the y-direction.

As shown in <FIG> and <FIG>, a pair of locking parts <NUM> to engage with the inner lid <NUM> is provided at the center of the pair of rectangular long sides of the inner peripheral surface <NUM> of the lid part <NUM>. The locking parts <NUM> are linear protrusions formed along the extending direction of the long sides.

As shown in <FIG> and <FIG>, when the container is assembled, the inner lid <NUM> is inserted into the depression <NUM> of the lid part <NUM>, and both ends of the long side of the inner lid <NUM> are moved beyond the locking part <NUM>, and are disposed between the locking part <NUM> and the upper second plane part <NUM>. As a result, the movement of the longitudinal ends of the inner lid <NUM> to the spaced-apart side (the z-positive side of <FIG> and <FIG> and the upper first plane part <NUM> side) is regulated by the locking part <NUM>. As a result, the inner lid <NUM> is engaged with the depression <NUM> of the lid part <NUM>. At this time, a chemical agent containing part <NUM> is formed by an inner peripheral surface <NUM>, the upper third plane part <NUM> of the lid part <NUM>, the second principal face <NUM> of the inner lid <NUM>, and the inner peripheral surface <NUM> between the upper second plane part <NUM> and the upper third plane part <NUM>.

Further, as shown in <FIG>, <FIG>, and <FIG>, a pair of containing grooves <NUM> is provided at the center of a pair of long sides of a rectangular shape in a plan view, of the outer peripheral surface <NUM> between the lower first plane part <NUM> and the lower plane portion <NUM> of the body part <NUM>. The containing groove <NUM> is formed so that the outer peripheral surface <NUM> curves inward along the z-negative direction from the lower second plane part <NUM>. The containing groove <NUM> is provided in a position facing the locking part <NUM> of the lid part <NUM>. Accordingly, when the body part <NUM> engages with the lid part <NUM>, because the locking part <NUM> enters the containing groove <NUM>, the locking part <NUM> smoothly engages with the body part <NUM> without causing the lid part <NUM> to interfere with the engagement.

As shown in <FIG>, the protrusion amount from the first principal face <NUM> of the frame projection <NUM> of the inner lid <NUM> is formed so that a communication portion between a groove <NUM> of the body part <NUM> and the stored item containing part <NUM> is not blocked when the container is assembled, and that a gap is formed between the groove <NUM> and the frame projection <NUM>. This ensures communication between the groove <NUM> and the stored item containing part <NUM>.

In addition, as shown in <FIG>, even when the inner lid <NUM> engages with the lid part <NUM> by the recesses <NUM> at both ends of the inner lid <NUM> in the x-direction, the inner lid <NUM> does not completely block the chemical agent containing part <NUM> and forms an opening <NUM> (shaded portion in <FIG>) at parts of both ends in the x-direction. Similarly, even when the inner lid <NUM> engages with the body part <NUM>, the inner lid <NUM> does not completely block the pair of grooves <NUM> on both sides of the stored item containing part <NUM> in the x-direction, and forms an opening <NUM> (shaded portion of <FIG>) at the center of the groove <NUM> in the y-direction. The openings <NUM> and the openings <NUM> are at least partially superimposed while facing each other during container assembly. That is, as shown in <FIG> and <FIG>, the ventilation paths <NUM> for communicating the stored item containing part <NUM> to the chemical agent containing part <NUM> are formed inside the main body <NUM> by the grooves <NUM> of the body part <NUM> and the recesses <NUM> of the inner lid <NUM>.

Next, the effect of the packaging container <NUM> according to the present embodiment will be described. The packaging container <NUM> according to the present embodiment includes the body part <NUM>, the lid part <NUM> integrally engaged with the body part <NUM>, the inner lid <NUM> disposed between the body part <NUM> and the lid part <NUM>, the stored item containing part <NUM> opening from an engaged portion of the body part <NUM> that is engaged with the lid part <NUM> and that houses a sheet-shaped stored item <NUM>, the chemical agent containing part <NUM> opening from the engaged portion of the lid part <NUM> that is engaged with the body part <NUM>, which is formed separately from the stored item containing part <NUM>, and contains a deoxidizing and/or dehydrating chemical agent <NUM>, and ventilation paths <NUM> that are formed in an inner space defined by the body part <NUM> and the lid part <NUM> and in which communicate the stored item containing part <NUM> and the chemical agent containing part <NUM> are in communication.

With this configuration, because the stored item <NUM> and the chemical agent <NUM> can be housed into the container while being separated from each other, and because communication between the stored item containing part <NUM> and the chemical agent containing part <NUM> can be ensured through the ventilation path <NUM>, the absorption of oxygen and/or water within the stored item containing part <NUM> by the chemical agent <NUM> can be promoted, and the effect of the chemical agent <NUM> can be quickly applied to the stored item <NUM>. Further, because the stored item <NUM> does not contact the chemical agent <NUM>, the deterioration or functional deterioration of the stored item <NUM> due to contact with the chemical agent <NUM> can be prevented, and the quality of the stored item <NUM> can be reliably maintained.

Further, in the packaging container <NUM> according to the present embodiment, because the ventilation paths <NUM> are formed on both sides of the stored item containing part <NUM> in the x-direction, the thickness of the container in the z-direction can be prevented, and space can be saved.

The packaging container <NUM> according to the present invention includes grooves <NUM> including ends in a circumferential direction on both sides of a single face of an inner wall of the stored item containing part <NUM> and formed into approximately C shapes connecting both ends, and disposed at a position where at least part of the grooves <NUM> face the chemical agent containing part <NUM> when the body part <NUM> and the lid part <NUM> engage with each other, ear parts <NUM> formed extending laterally from the inner lid <NUM> and disposed facing the grooves <NUM> when the body part <NUM> and the lid part <NUM> are engaged with each other, and recesses <NUM> formed so as to curve inward from the ends of the ear parts <NUM> to the center side of the inner lid <NUM> and disposed between parts of the grooves <NUM> and the chemical agent containing part <NUM> when the body part <NUM> and the lid part <NUM> are engaged with each other, and the grooves <NUM> and recesses <NUM> form ventilation paths <NUM>.

In this configuration, because the ventilation path <NUM> is formed by combining parts of the body part <NUM> and the inner lid <NUM> without a dedicated ventilation path <NUM>, the ventilation path <NUM> can be secured while ensuring the ease of assembly of the container. Further, the grooves <NUM> are formed in a substantially C shape, and particularly in the present embodiment, both ends of the groove <NUM> are connected to the stored item containing part <NUM> at both ends of the short side of rectangular sides of the lower third plane part <NUM>, and the intermediate wall part <NUM> is disposed at the center of the short side. Therefore, the opening portion of the ventilation path <NUM> to the stored item containing part <NUM> can be limited to both ends of the inner wall of the stored item containing part <NUM> (both ends of the intermediate wall part <NUM> in the y-direction). As a result, because the rectangular corner of the sheet-shaped stored item <NUM> in the stored item containing part <NUM> is unlikely to enter the ventilation path <NUM>, it is possible to prevent deformation caused by the entrance of the stored item <NUM> into the ventilation path <NUM> and prevent deformation and functional deterioration due to deformation of the stored item <NUM>.

In the packaging container <NUM> of the present embodiment, the inner lid <NUM> includes the frame projection <NUM> that engages with the outer edge of the stored item containing part <NUM>, on the first principal face <NUM> facing the body part <NUM> when disposed between the body part <NUM> and the lid part <NUM>. This configuration can prevent the stored item <NUM> from sticking out from the stored item containing part <NUM> to the inner lid <NUM> side. Further, it is possible to inhibit the movement of the inner lid <NUM> in the x direction and the y direction relative to the body part <NUM>, and thus it is possible to inhibit the generation of vibration and noise.

Further, in the packaging container <NUM> according to the present embodiment, the bottom face (the bottom third plane part <NUM>) of the stored item containing part <NUM> is parallel to the bottom face (the bottom first plane part <NUM>) of the body part <NUM> and is formed closer to the engaged portion than the bottom face of the body part <NUM>. Because the stored item containing part <NUM> has a raised bottom due to this configuration, the stored item <NUM> within the stored item containing part <NUM> is not directly subjected to external forces from below, thereby ensuring that the stored item containing part <NUM> is held more reliably.

Further, in the packaging container <NUM> according to the present embodiment, the convex pattern <NUM> protruding from the engaged portion side and supporting the stored item <NUM> is provided on the bottom face of the stored item containing part <NUM>. This configuration can reduce a contact area of the stored item <NUM> within the stored item containing part <NUM>, prevent adhesion of the stored item <NUM>, and improve the ease of removal.

In the packaging container <NUM> according to the present embodiment, the inner lid <NUM> is detachably engaged with the lid <NUM>. As a result, because the bottom side of the stored item containing part <NUM> is exposed when the lid part <NUM> is opened or closed, the stored item <NUM> can be easily carried in and out.

Further, in the packaging container <NUM> according to the present embodiment, the body part <NUM> and the lid part <NUM> are formed as a single member, and are engaged with each other by folding the boundary portion <NUM>. This configuration can reduce the number of parts and manufacturing costs and can facilitate the assembly.

In the above-described embodiment, the body part <NUM> and the lid part <NUM> are formed integrally. However, the body part <NUM> and the lid part <NUM> may be separate members. Meanwhile, in the above-described embodiment, the main body <NUM> having the body part <NUM>, the lid part <NUM>, and the inner lid <NUM> are configured as separate members. However, the main body <NUM> and the inner lid <NUM> may be configured to be integrally formed. In this case, the inner lid <NUM> is connected to one side, for example, of the long side of the body part <NUM> or the lid part <NUM>, which is not the boundary portion <NUM>.

In the above-described embodiment, the stored item containing part <NUM> is provided in the body part <NUM>, and the chemical agent containing part <NUM> is provided in the lid part <NUM>. However, in contrast to the above-described configuration, the stored item containing part <NUM> is provided in the lid part <NUM> and the chemical agent containing part <NUM> is provided in the body part <NUM>.

Claim 1:
A packaging container (<NUM>), comprising:
a first member (<NUM>);
a second member (<NUM>) configured to engage with the first member (<NUM>) integrally;
an inner lid (<NUM>) disposed between the first member (<NUM>) and the second member (<NUM>);
a stored item containing part (<NUM>) opening from an engaged portion of the first member (<NUM>) that is engaged with the second member (<NUM>), and configured to contain a stored item (<NUM>);
a chemical agent containing part (<NUM>) opening from the engaged portion of the second member (<NUM>) that is engaged with the first member (<NUM>), the chemical agent containing part (<NUM>) being formed separately from the stored item containing part (<NUM>), and configured to contain a chemical agent (<NUM>); and
a ventilation path (<NUM>) in which the stored item containing part (<NUM>) and the chemical agent containing part (<NUM>) are in communication, the ventilation path (<NUM>) being formed in an inner space defined by the first member (<NUM>) and the second member (<NUM>),
wherein the ventilation path (<NUM>) is formed on a lateral side of the stored item containing part (<NUM>), characterized in that the packaging container (<NUM>) further comprises:
a groove (<NUM>) including ends on both sides in a circumferential direction of a single face of an inner wall of the stored item containing part (<NUM>), formed in an approximately C shape connecting the ends, and disposed at a position at least partially facing the chemical agent containing part (<NUM>) when engaging the first member (<NUM>) with the second member (<NUM>);
an ear part (<NUM>) formed laterally extending from the inner lid (<NUM>) and disposed facing the groove (<NUM>) in engaging the first member (<NUM>) with the second member (<NUM>); and
a recess (<NUM>) formed curving inward to a central side of the inner lid (<NUM>) from an end of the ear part (<NUM>), and disposed between a part of the groove (<NUM>) and the chemical agent containing part (<NUM>) in engaging the first member (<NUM>) with the second member (<NUM>),
wherein the groove (<NUM>) and the recess (<NUM>) form the ventilation path (<NUM>).