Packaging

Abstract

To provide a new holding member capable of suppressing removal of a medical device.SOLUTION: A pedestal sheet 10 stored in a box body in a state of enclosed in a bag body together with a medical device comprises: a main surface part 30 for holding the medical device; lateral face parts 34A, 34B adjacent to the main surface part 30 in a first direction; and a ruled line part 32 for folding disposed between the main surface part 30 and the lateral face parts 34A, 34B and extending in a second direction orthogonal to the first direction. The pedestal sheet includes a buffer region 50 comprising the main surface part 30 in a position not overlapped on the ruled line part 32 in the first direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a package for packaging medical instruments and a base sheet for use in the package. [Background technology]

[0002] Patent Document 1 discloses a package (medical equipment set) for packaging medical instruments. This package includes a tray for holding the medical instruments and a bag for enclosing the tray together with the medical instruments. In addition, the package usually includes a box for storing the bag. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-159396 A Summary of the Invention [Problem to be solved by the invention]

[0004] When using a package combining a tray, a bag, and a box, there is a problem that the medical instruments are easily dislodged from the position held by the tray due to the impact of being dropped or during transportation. This problem of the medical instruments dislodging is also a common problem when other holding members for holding the medical instruments are used instead of the tray, and an improvement in this respect is desired.

[0005] Therefore, one object of the present disclosure is to provide a new holding member that can prevent a medical instrument from coming off. [Means for solving the problem]

[0006] One aspect of the present disclosure relates to a base sheet that serves as a holding member, which is stored in a box while being sealed in a bag together with a medical instrument, and which comprises a main surface for holding the medical instrument, a side surface adjacent to the main surface in a first direction, a folding line portion provided between the main surface and the side surface and extending along a second direction perpendicular to the first direction, and a buffer region made of the main surface at a position that does not overlap with the line portion in the first direction. Effect of the Invention

[0007] According to the present disclosure, it is possible to prevent a medical instrument from coming off the base sheet. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is an exploded view of the packaging body of the embodiment. [Diagram 2] FIG. 2 is a plan view showing a state in which the base sheet of the embodiment is used. [Diagram 3] FIG. 2 is a plan view of the base sheet of the embodiment. [Figure 4] FIG. 2 is a right side view of the base sheet according to the embodiment. [Diagram 5] FIG. 2 is a front view of the base sheet according to the embodiment. [Figure 6] 3 is a side cross-sectional view showing the holding portion in range Sa of FIG. 2. [Figure 7] FIG. 7(A) is a schematic front cross-sectional view showing a state in which a base sheet of a reference embodiment is stored in a box, and FIG. 7(B) is its plan cross-sectional view. [Figure 8] 2 is a schematic front cross-sectional view showing a state in which the base sheet of the embodiment is stored in a box body. FIG. [Figure 9] 2 is a schematic plan cross-sectional view showing a state in which the base sheet of the embodiment is stored in a box body. FIG. [Figure 10] 5A to 5C are explanatory diagrams showing a folding procedure of the bag body of the embodiment. [Figure 11] 2 is a schematic side cross-sectional view showing a state in which the base sheet of the embodiment is stored in a box body. FIG. [Figure 12] 12(A) is a diagram in which the bag body is omitted from FIG. 9, and FIG. 12(B) is a diagram showing a state in which the buffer area of ​​the base sheet is in the middle of deformation. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment for implementing the base sheet of the present disclosure will be described. The same or equivalent elements are given the same reference numerals, and duplicated explanations will be omitted. In each drawing, for the convenience of explanation, components are omitted, enlarged, or reduced as appropriate. The drawings should be viewed according to the orientation of the reference numerals.

[0010] Please refer to Fig. 1. The base sheet 10 is used as a packaging base sheet and forms part of a packaging body 12 for packaging a medical instrument 14. The packaging body 12 includes the base sheet 10 as a holding member for holding the medical instrument 14, a bag body 16 for enclosing the base sheet 10 together with the medical instrument 14, and a box body 18 for storing the bag body 16.

[0011] (Medical Instrument) See Fig. 2. Specific examples of the medical instrument 14 packaged in the packaging body 12 are not particularly limited. The medical instrument 14 in this embodiment is a catheter, but may also be a pacemaker, an implantable cardioverter defibrillator, an artificial blood vessel, a stent, a stent graft, an embolization coil, an endoscope, etc. The catheter in this embodiment is an electrode catheter, but specific examples thereof are not particularly limited and may be, for example, a balloon catheter, a guiding catheter, a foreign body removal catheter, an imaging catheter, a microcatheter, etc.

[0012] The medical device 14 may include at least one main body portion 14a, 14b and at least one flexible linear portion 14c, 14d connected to the main body portion 14a, 14b. The main body portion 14a, 14b is harder than the linear portion 14c, 14d connected to the main body portion 14a, 14b, and the radial dimension of the linear portion 14c, 14d is larger than that of the linear portion 14c, 14d. The radial direction of the linear portion 14c, 14d here refers to the radial direction of a circle concentric with the center line of the linear portion 14c, 14d.

[0013] The linear portions 14c, 14d may include a main linear portion 14c having one free end connected to the main portion 14a at the other end, and at least one sub-linear portion 14d connecting the multiple main portions 14a, 14b. The main linear portion 14c is longer in the linear length direction than the sub-linear portion 14d. The main portions 14a, 14b may include at least one sub-main portion 14b connected to the main main portion 14a via the sub-linear portion 14d, in addition to the main main portion 14a to which the main linear portion 14c is connected.

[0014] In the case of the catheter of the embodiment, the main body portion 14a is a handle held by the surgeon, and the main linear portion 14c is a catheter shaft connected to the handle. The sub-main body portion 14b is a female luer for inserting a guidewire into the catheter shaft, or a pair of connectors connectable to an external power supply device. The sub-linear portion 14d is a protective tube connecting the female luer to the handle, or a protective tube connecting the connector to the handle. The main body portions 14a, 14b and linear portions 14c, 14d listed here are merely examples, and are not limited thereto.

[0015] (Bag) See FIG. 1. The bag 16 is flexible overall. When the bag 16 is in an unfolded state, for example, it has a rectangular shape that is long in one direction when viewed from the thickness direction of the base sheet 10 (from the viewpoint of FIG. 1). The bag 16 has an opening 16a for putting contents therein. After the base sheet 10 and the medical instrument 14 are stored inside the bag 16, the opening 16a is sealed by heat sealing or the like to enclose the base sheet 10 and the medical instrument 14. Here, an example of a sealed portion of the bag 16 is shown by a two-dot chain line. The bag 16 is made of a material that is impermeable to bacteria, and when in a sealed state, the penetration of bacteria from the outside to the inside is prevented.

[0016] The bag 16 encloses the contents (medical instruments 14, base sheet 10) that have been sterilized. Specific examples of this sterilization are not particularly limited, and may be, for example, gas sterilization using sterilizing gas, moist heat sterilization using heated steam, radiation sterilization, etc. This sterilization may be performed while the contents are sealed using a sterilization bag 22 described later, or in a sterile environment before the contents are accommodated in the bag 16. In the latter case, the opening 16a of the bag 16 may be sealed after the sterilized contents are accommodated in the bag 16 in a sterile environment. In this case, a bag other than the sterilization bag 22 may be used as the bag 16.

[0017] The bag body 16 of this embodiment is a sterilization bag 22 capable of sterilizing the contents in a sealed state. The sterilization bag 22 includes a ventilation section 22a having ventilation in at least a part thereof, and a non-ventilation section 22b provided in the other part and not having ventilation. For example, the ventilation section 22a is made of sterilized paper or the like, and the non-ventilation section 22b is made of a synthetic resin film. As a result, the contents are sterilized by passing sterilization gas, heated steam, or the like through the ventilation section 22a while the sterilization bag 22 is kept sealed. The configuration of the sterilization bag 22 is not particularly limited, and various configurations adopted for the sterilization bag 22 may be applied. Here, the sterilization bag 22 is shown in which a rectangular synthetic resin film and a sterilization paper are overlapped and joined to surround the part that becomes the internal space, leaving the part that becomes the opening 16a. These joining parts are indicated by dashed lines.

[0018] (Box) The box 18 is cubic in shape, short in the short-side direction X and long in the long-side direction Y of the base sheet 10, as viewed in the thickness direction of the base sheet 10. The box 18 is formed by folding a single sheet base material and connecting the overlapping parts with an adhesive or the like. The box 18 includes a box body 18b having an opening 18a for inserting and removing stored items, and a lid 18c that can open and close the opening 18a. The stored items here refer to the bag 16 that encloses the base sheet 10 together with the medical instrument 14. The box body 18b of this embodiment is shaped like a square tube, and has openings 18a on both sides in the short-side direction Y. The lids 18c of this embodiment are provided individually in correspondence with the individual openings 18a of the box body 18b. The positions and structures of the box body 18b and the lid 18c are not limited to those described here, and various positions and structures employed in various types of box bodies 18 may be applied.

[0019] The base sheet 10, the medical instruments 14, and the bag body 16 are stored inside the box body 18 with the longitudinal direction Y of the base sheet 10 aligned with the longitudinal direction of the box body 18. The base sheet 10 and the like are stored so as to be movable relative to the box body 18 at least in the longitudinal direction X of the base sheet 10 (the longitudinal direction of the box body 18).

[0020] (Base sheet) We will now move on to an explanation of the base sheet 10. Please refer to Fig. 2 and Fig. 3. Fig. 3 is a plan view of the base sheet 10, Fig. 4 is a right side view thereof, and Fig. 5 is a front view thereof. The back view of the base sheet 10 is omitted since it is symmetrical with the plan view, the left side view is omitted since it is symmetrical with the right side view, and the back view is omitted since it is symmetrical with the front view. The dashed lines in Fig. 3 indicate perforations.

[0021] The base sheet 10 is a planar structure that is generally planar and flexible. The base sheet 10 of this embodiment is generally elongated in one direction. Hereinafter, of the two directions perpendicular to the thickness direction of the base sheet 10 (the direction perpendicular to the paper surface of FIG. 3), the direction in which the base sheet 10 extends long is referred to as the longitudinal direction Y, and the direction perpendicular to the longitudinal direction Y is referred to as the transverse direction X.

[0022] The base sheet 10 can be obtained by die-cutting a sheet base material, such as Thomson processing. The base sheet 10 of the present embodiment is made of paper, but may be made of a resin sheet using a synthetic resin material.

[0023] The base sheet 10 is enclosed in a bag 16 together with the medical instruments 14 and stored in a box 18. When the base sheet 10 is stored in the box 18, it is stored in the box 18 in a folded state, folded at the lined portions 32 described below. The base sheet 10 is preferably made of a material having a rigidity sufficient to maintain this folded state.

[0024] The base sheet 10 comprises a main surface portion 30 for holding the medical instrument 14, side portions 34A, 34B adjacent to the main surface portion 30 in the short direction X of the base sheet 10, and a ruled portion 32 provided between the main surface portion 30 and the side portions 34A, 34B and extending along the longitudinal direction Y of the base sheet 10.

[0025] (Main Surface Section) The main surface section 30 can receive the medical device 14 placed on the front side (the front side of the paper in Figs. 2 and 3) which is one side in the thickness direction of the main surface section 30. The medical device 14 may be detachably held by the main surface section 30 using holding sections 36A to 36C which will be described next, or may be held by the main surface section 30 using a fixing member for detachably fixing the medical device 14 to the main surface section 30, such as an adhesive tape.

[0026] The main surface portion 30 may be provided with holding portions 36A-36C capable of holding a part of the medical device 14 in an upright state relative to the flat portion 30a of the main surface portion 30. The holding portions 36A-36C are configured by areas surrounded by cut lines 38 formed on the main surface portion 30. The flat portion 30a is a planar portion continuing from the holding portions 36A-36C. The holding portions 36A-36C can be made to stand up relative to the flat portion 30a by folding the boundary portion with the flat portion 30a toward the front side. The boundary portion between the holding portions 36A-36C and the flat portion 30a may be provided with a folding ruled portion 30b.

[0027] The holding parts 36A to 36C in this embodiment include a main body holding part 36A corresponding to the main body part 14a of the medical device 14, a secondary body holding part 36B corresponding to the secondary body part 14b, and a linear part holding part 36C corresponding to the main linear part 14c. The main body holding parts 36A are provided individually on both sides of the main body part 14a in the longitudinal direction Y, and hold a part of the main body part 14a, or the ends of the linear parts 14c and 14d connected to the main body part 14a on the main body part 14a side. In detail, one main body holding part 36A (holding part 36A on the left side of the paper in FIG. 2) holds the end of the main linear part 14c on the main body part 14a side. In addition, the other main body holding part 36A (holding part 36A on the right side of the paper in FIG. 2) holds the end of the secondary linear part 14d on the main body part 14a side. The sub-main body holding portion 36B holds a part of the sub-main body portion 14b, or the end of the sub-linear portion 14d connected to the sub-main body portion 14b on the sub-main body portion 14b side. In this embodiment, the sub-main body holding portion 36B corresponding to the lure holds a part of the lure (sub-main body portion 14b), and the sub-main body holding portion 36B corresponding to the connector holds the end of the sub-linear portion 14d connected to the connector on the connector side. The holding portions 36A to 36C are provided at intervals in the longitudinal direction Y.

[0028] Referring to FIG. 6, common features of the holding parts 36A to 36C will be described using the main body holding part 36A as an example. The holding parts 36A to 36C are formed with a holding hole 36a for holding a part of the medical instrument 14 inserted therethrough, and a slit 36b for opening the holding hole 36a. This allows a part of the medical instrument 14 to be easily placed in the holding hole 36a through the slit 36b. The slit 36b may extend, for example, in a direction intersecting the thickness direction Z of the base sheet 10 (for example, the short side direction X) when the holding parts 36A to 36C are in an upright state.

[0029] (Side portion) See FIG. 2 and FIG. 3. When the base sheet 10 is in a folded state in which it is folded at the lined portion 32, the side portions 34A and 34B are in a state of standing on the front side with respect to the main surface portion 30. By providing a folding portion at the lined portion 32, the strength (shape retention) of the base sheet 10 is increased when the base sheet 10 is in a folded state. The side portions 34A and 34B of this embodiment include a first side portion 34A adjacent to one side in the short direction with respect to the main surface portion 30, and a second side portion 34B adjacent to the other side in the short direction. Here, an example in which there is a total of one first side portion 34A and one second side portion 34B is shown, but the number of the side portions 34A and 34B is not particularly limited. For example, the number of the side portions 34A and 34B may be single. This is a case in which only one of the first side portion 34A and the second side portion 34B is present. Furthermore, at least one of the first side surface portion 34A and the second side surface portion 34B may be provided in a plurality of portions at intervals in the longitudinal direction Y.

[0030] (Rule section) The crease section 32 for folding is provided to facilitate folding along the crease section 32. In this embodiment, the crease section 32 is provided individually between the first side surface section 34A and the second side surface section 34B and the main surface section 30. Although an example is shown in which the crease section 32 is configured using intermittent sewing lines, specific examples are not particularly limited, and the crease section 32 may be configured using fold lines, lead lines, half cuts, etc. When intermittent crease elements such as sewing lines are used, the crease section 32 is configured by not only the intermittent crease elements but also a part of the base sheet 10 that is an extension of the intermittent crease elements.

[0031] Here, an example is shown in which one creased portion 32 is provided between the side surface portions 34A, 34B and the main surface portion 30. Alternatively, multiple creased portions 32 may be provided between them. For example, three creased portions 32 may be provided between the side surface portions 34A, 34B and the main surface portion 30, and folding may be performed at each creased portion 32 such that valley folds and mountain folds are arranged alternately in the short direction X. Alternatively, between the side surface portions 34A, 34B and the main surface portion 30, there may be a location where one creased portion 32 is provided and a location where multiple creased portions 32 are provided at different positions in the longitudinal direction Y from the location where the single creased portion 32 is provided.

[0032] Here, the side away from the central position 10a in the longitudinal direction Y of the base sheet 10 is referred to as the outer side in the longitudinal direction, and the side approaching the central position 10a in the longitudinal direction is referred to as the inner side in the longitudinal direction. The ruled portion 32 has an outermost end portion 32a that is the outermost in the longitudinal direction Y of the base sheet 10. Here, the "outermost end portion 32a that is the outermost in the longitudinal direction" refers to the end portion of the ruled portion 32 that is the outermost in the longitudinal direction when there is only a single ruled portion 32 on one side in the longitudinal direction with respect to the central position 10a of the base sheet 10. Also, when there are multiple ruled portions 32 on one side in the longitudinal direction with respect to the central position 10a of the base sheet 10, it refers to the end portion of the ruled portion 32 that is the outermost in the longitudinal direction. When the lined portion 32 uses discontinuous line elements such as sewing machine lines, the outermost end 32a of the lined portion 32 is provided at the intersection of an extension line of the discontinuous line element and the outer edge 10b in the longitudinal direction Y of the base sheet 10. When the base sheet 10 is in a folded state in which it is folded at the lined portion 32, a corner 40 is formed at the outermost end 32a of the lined portion 32 (see also FIG. 8 described later).

[0033] There may be a total of two outermost ends 32a of the ruled portions 32 between the main surface portion 30 and the first side surface portion 34A. There may also be a total of two outermost ends 32a of the ruled portions 32 between the main surface portion 30 and the second side surface portion 34B. In other words, there may be a total of four outermost ends 32a of the ruled portions 32 on the base sheet 10.

[0034] The outermost end 32a of the ruled portion 32 is located on the inner side in the longitudinal direction than the outermost end 30c of the main surface portion 30 on the same side in the longitudinal direction Y as the outermost end 32a. The outermost end 30c here refers to the end that is the outermost in the longitudinal direction in the outer edge portion 30d that is the outermost in the longitudinal direction of the main surface portion 30. The outermost end 32a of the ruled portion 32 in this embodiment is located at the same position as the innermost end that is the innermost in the longitudinal direction in the outer edge portion 30d of the main surface portion 30. The positional condition regarding the outermost end 32a of the ruled portion 32 and the outer edge portion 30d of the main surface portion 30 only needs to be satisfied in relation to at least one of the outermost end portions 32a of the multiple ruled portions 32. In this embodiment, this positional condition is satisfied for each of the total four outermost end portions 32a.

[0035] In order to satisfy the above-mentioned positional conditions, in this embodiment, the outer edge portion 10b on the outer side of the base sheet 10 in the longitudinal direction is gradually narrowed in the short direction Y as it moves outward in the longitudinal direction. As a shape that realizes this, an example of a circular arc is shown here, but the shape is not limited to this, and may be a triangular shape, a trapezoidal shape, etc. In addition, in order to satisfy the above-mentioned positional conditions, the outer edge portion 10b of the base sheet 10 may be formed in a straight line along the short direction X, and a cut extending from the outer edge portion 10b to the inside in the longitudinal direction Y may be made between the side portions 34A, 34B and the main surface portion 30. In this case, the outermost end portion 32a of the ruled portion 32 is provided at the end position on the inside in the longitudinal direction Y of the cut. In addition, in order to satisfy the above-mentioned positional conditions, the corners of the rectangular base sheet 10 may be cut out to shift the positions of the outer edges of the side portions 34A, 34B to the inside in the longitudinal direction Y with respect to the outer edge of the main surface portion 30. In any case, the specific structure for satisfying the above-mentioned positional conditions is not particularly limited.

[0036] Refer to FIG. 3. The base sheet 10 includes a buffer region 50 consisting of the main surface portion 30 that is located at a position that does not overlap the ruled line portion 32 of the base sheet 10 in the short-side direction X, and a folding region 52 consisting of the main surface portion 30 and the side portions 34A and 34B that are located at a position that overlaps the ruled line portion 32 in the short-side direction X. The buffer region 50 constitutes a part of the longitudinal range of the base sheet 10, and the folding region 52 constitutes a part of the longitudinal range of the base sheet 10 different from the buffer region 50. When the base sheet 10 is in a folded state, the buffer region 50 is an area where there is no folding portion folded at the ruled line portion 32, and the folding region 52 is an area where the folding portion exists. When the base sheet 10 is in a folded state, the buffer region 50 is an area with relatively low strength because there is no folding portion, and the folding region 52 is an area with relatively high strength because there is a folding portion.

[0037] In this embodiment, the buffer region 50 is provided at the end 30e in the longitudinal direction Y of the main surface portion 30. This buffer region 50 has a shape that gradually becomes narrower in the short direction X toward the outside in the longitudinal direction Y. To achieve this, the buffer region 50 in this embodiment has an arc shape as an example, but is not limited to this and may have a triangular shape, a trapezoidal shape, or the like.

[0038] The effect of the above-mentioned base sheet 10 will be described. See FIG. 9. An impact load F1 is input to the base sheet 10 when the outer edge portion 10b of the base sheet 10 hits the inner surface of the box body 18. Here, by providing the buffer region 50 on the base sheet 10, when the impact load F1 in the longitudinal direction Y is input to the base sheet 10, the shape of the high-strength folding region 52 can be maintained, and the crushing deformation in the longitudinal direction Y can be promoted in the low-strength buffer region 50. Therefore, the impact load F1 input to the base sheet 10 can be buffered. This reduces the impact load F1 transmitted to the medical instrument 14 held on the main surface portion 30 of the base sheet 10, and prevents the medical instrument 14 from coming off from the position held on the main surface portion 30. Here, "coming off of the medical instrument 14" means that when the medical instrument 14 is held using the holding portions 36A to 36C, a part of the medical instrument 14 is separated from the holding portions 36A to 36C. In addition, "removal of medical device 14" here means that when medical device 14 is held using a fixing member such as adhesive tape, the holding of part of medical device 14 by the fixing member is released when the adhesive tape or the like is separated.

[0039] The present inventors have found that when an impact load F1 in the longitudinal direction Y is input to the base sheet 10, the holding portions 36A to 36C are likely to be damaged. In particular, the present inventors have found that damage is likely to occur in the narrow portions 36c (see FIG. 6) on the front side of the holding holes 36a of the holding portions 36A to 36C. In this regard, when the base sheet 10 includes the buffer region 50 as in this embodiment, the buffer region 50 buffers the impact load, thereby preventing damage to the holding portions 36A to 36C. In particular, this is advantageous in that damage to the holding portions 36A to 36C can be prevented without increasing the size of the holding portions 36A to 36C in order to increase the strength of the holding portions 36A to 36C.

[0040] Moreover, in this embodiment, the buffer region 50 is shaped so that its width gradually narrows toward the outside in the longitudinal direction Y. Therefore, compared with the reference embodiment in which the outer edge 30d of the main surface portion 30 is linear along the short direction X (see FIG. 7(B)), the contact area of ​​the outer edge 30d of the main surface portion 30 with the inner surface of the box body 18 is reduced. Therefore, the increase in impact stress around the contact point of the main surface portion 30 with the box body 18 can promote crushing deformation in the buffer region 50, and the buffer region 50 can easily exhibit its effect of cushioning the impact load F1.

[0041] 7(A) and 7(B), a reference embodiment of base sheet 100 will be described. Base sheet 100 of the reference embodiment has an outer edge 100a that is linear along the short direction X, and outermost end 32a of ruled portion 32 is provided at the same longitudinal position as outermost end 30c (outer edge 30d) of main surface portion 30.

[0042] When the packaging body 12 with the base sheet stored in the box body 18 is dropped or transported, an impact load is input to the packaging body 12. Due to this impact load, the base sheet moves relative to the box body 18 in various directions, causing the base sheet to collide with the inner surface of the box body 18 via the bag body 16. Here, a case is considered in which the base sheet moves relative to the box body 18 in the longitudinal direction Y.

[0043] In the case of the base sheet 100 of the reference embodiment, when the base sheet 100 is in a folded state, the corners 40 formed at the outermost ends 32a of the ruled portions 32 are also provided at the same longitudinal position as the outermost ends 30c of the main surface portions 30. Due to this, when the base sheet 100 moves relative to the box body 18 in the longitudinal direction Y, the corners 40 of the base sheet 100 are likely to come into contact with the bag body 16 at the same time as the outermost ends 30c of the main surface portions 30. As a result, corner contact occurs in which the corners 40 of the base sheet 100 come into contact with the bag body 16.

[0044] 8 and 9. According to this embodiment, the outermost end 32a of the ruled portion 32 is located inside the outermost end 30c of the main surface portion 30 in the longitudinal direction. Therefore, when the base sheet 10 is in a folded state, the corner portion 40 formed at the outermost end 32a of the ruled portion 32 is also located inside the outermost end 30c of the main surface portion 30 in the longitudinal direction. Therefore, when the outermost end 30c of the main surface portion 30 hits the bag body 16 due to the relative movement of the base sheet 10 in the longitudinal direction Y with respect to the box body 18, the corner portion 40 is unlikely to hit the bag body 16 at the same time as the outermost end 30c. In addition, compared to the base sheet 100 of the reference embodiment, it is possible to suppress the corner of the base sheet 10 hitting the bag body 16.

[0045] If the bag body 16 is damaged due to hitting against a corner of the base sheet 10, the sealed state of the bag body 16 will be released. If bacteria enter the bag body 16 as a result, the medical instrument 14 will become unusable. In this regard, according to the present embodiment, the corner hitting of the base sheet 10 can be suppressed, and therefore the risk of the medical instrument 14 becoming unusable due to this can be reduced.

[0046] When a three-dimensional tray is used as a base for receiving the medical instrument 14, a costly molding method such as vacuum forming is usually required. In this regard, according to the present embodiment, a planar base sheet 10 is used as the base for receiving the medical instrument 14. Therefore, the base sheet 10 can be obtained by a processing method such as die-cutting, which is less expensive than the tray molding method, and the manufacturing cost can be reduced.

[0047] A three-dimensional tray usually includes a storage section provided with a recess for storing medical instruments, and an outer peripheral wall section hanging down from the outer peripheral edge of the storage section. This tray is usually stored in a box with the outer peripheral wall section of the tray placed on the bottom surface of the box. Therefore, when an impact load is input in the height direction of the box (thickness direction of the base sheet 10), the impact load is transmitted from the box to the outer peripheral wall section of the tray. The outer peripheral wall section of the tray is usually continuous around the entire circumference, and the tray as a whole has very high rigidity. Therefore, the impact load in the height direction input from the box to the tray is easily transmitted to the medical instruments in the storage section without being buffered by the deformation of the outer peripheral wall section and the storage section of the tray, and as a result, the medical instruments are easily removed from the tray. In this regard, the base sheet 10 of this embodiment is stored in the box in a folded state, and does not have a continuous portion around the entire circumference like the tray, and has a lower rigidity than the tray. Therefore, the impact load in the height direction of the box body 18 (thickness direction of the base sheet 10) transmitted from the box body 18 is easily cushioned by the deformation of each part of the base sheet 10. Also, the impact load in the height direction is received by the main surface portion 30 of the base sheet 10, which has a larger contact area with the bottom surface of the box body compared to the outer peripheral wall portion of the tray. This deformation of the main surface portion 30 of the base sheet 10 can effectively cushion the impact load. These combined factors can prevent the medical instrument 14 from coming off compared to a tray.

[0048] 2. The folding region 52 of the base sheet 10 is provided so that the main body parts 14a, 14b of the medical device 14 are contained within the folding region 52 when the medical device 14 is held by the holding portions 36A-36C. Here, "contained" means that the part of the medical device 14 referred to (here, the main body parts 14a, 14b) does not protrude from the folding region 52 in the longitudinal direction Y. It can also be said that the folding region 52 is provided so that the main body parts 14a, 14b are not disposed within the buffer region 50 when the medical device 14 is held by the holding portions 36A-36C. To satisfy this condition, it is sufficient that the folding region 52 is provided so that all the main body parts 14a, 14b are contained within the folding region 52. The bending region 52 may be provided so that the linear portions 14c, 14d of the medical device 14 are also accommodated within the bending region 52 when the medical device 14 is held by the holding portions 36A to 36C.

[0049] When an impact load F1 is input to the base sheet 10, as described above, the crushing deformation of the buffer region 50 is promoted while the shape of the bent region 52 is maintained. According to this embodiment, the main body portions 14a, 14b of the medical device 14 are provided in the bent region 52, not in the buffer region 50 where the crushing deformation occurs. This is advantageous in that the impact load F1 is less likely to be transmitted to the main body portions 14a, 14b of the medical device 14.

[0050] Please refer to FIG. 3 and FIG. 9. The outer dimension L52 in the short-side direction X of the folding region 52 of the base sheet 10 in the unfolded state is larger than the inner dimension L18 in the short-side direction X of the box body 18. The box body 18 has a pair of long-side side portions 18e provided on both sides in the short-side direction X. The inner dimension L18 of the box body 18 refers to the inner dimension between the pair of long-side side portions 18e of the box body 18. The dimensional conditions regarding the outer dimension L52 of the folding region 52 and the inner dimension L18 of the box body 18 may be satisfied in at least a part of the longitudinal range of the folding region 52. The range in which this dimensional condition is satisfied is preferably as wide as possible within the longitudinal range of the folding region 52 of the base sheet 10. For example, the dimensional conditions may be satisfied in a range of more than half of the longitudinal range, or may be satisfied in a majority of the longitudinal range. The majority here refers to a range of more than 90% of the longitudinal range of the folding region 52. When the base sheet 10 is in a folded state, the outer dimension L30 in the short side direction X at a thickness direction position passing through the main surface portion 30 of the base sheet 10 is smaller than the inner dimension L18 in the short side direction X of the box 18.

[0051] Consider a case in which, when the folded base sheet 10 is stored in the box body 18, the base sheet 10 tries to deform in a direction D1 in which the folding angle at the lined portion 32 becomes smaller. In this case, when the above-mentioned dimensional condition is satisfied, the side portions 34A and 34B of the base sheet 10 can be stably abutted against the long side portion 18e of the box body 18 while the base sheet 10 is folded at the lined portion 32, compared to a case in which the dimensional condition is not satisfied. Therefore, by restricting the deformation of the base sheet 10 that reduces the folding angle by the box body 18, the folded state at the lined portion 32 can be stably maintained. Furthermore, by maintaining the base sheet 10 in a folded state when stored in the box body 18, high strength can be stably maintained.

[0052] Please refer to Fig. 10. The bag body 16 has a storage section 60 for storing the base sheet 10, and also includes, as an optional configuration, folding sections 62A, 62B provided in at least one of the short direction X and the long direction Y with respect to the storage section 60. The storage section 60 and folding sections 62A, 62B of the bag body 16 are provided when the bag body 16 is in a state stored together with the base sheet 10 in the box body 18 (the state at the bottom in Fig. 10). For ease of explanation, the portion that becomes the storage section 60 when the bag body 16 is in an unfolded state is also shown hatched.

[0053] The folded portions 62A, 62B of this embodiment include a first folded portion 62A located in the short direction X with respect to the storage portion 60, and a second folded portion 62B located in the longitudinal direction Y with respect to the storage portion 60. Here, the first folded portion 62A is provided on both sides in the short direction, but may be provided only on one side in the short direction. Here, the second folded portion 62B is provided on both sides in the longitudinal direction, but may be provided only on one side in the longitudinal direction. Note that the bag body 16 may include only either the first folded portion 62A or the second folded portion 62B.

[0054] When the folded portions 62A and 62B are in an unfolded state, the bag body 16 has a long side portion 16c at an end side in the short side direction X and a short side portion 16d at an end side in the longitudinal direction Y. The first folded portion 62A is provided by folding the long side portion 16c of the bag body 16 in the short side direction X (direction D2 in FIG. 10). The second folded portion 62B is provided by folding the short side portion 16d of the bag body 16 in the longitudinal direction Y (direction D3 in FIG. 10). The first folded portion 62A here is provided by folding the long side portion 16c of the bag body 16 in two, and an example is shown in which the number of folds is one. The number of folds of the first folded portion 62A is not particularly limited, and may be two or more. The same applies to the second folded portion 62B.

[0055] Please refer to Figures 8 and 11. When stored in the bag body 16, the folded portions 62A, 62B are located at positions overlapping the front side (upper side of the paper in Figures 8 and 11) on which the medical instruments 14 are located in the thickness direction of the base sheet 10. This condition is satisfied by both the two first folded portions 62A and the two second folded portions 62B, but it is sufficient that at least one of the folded portions 62A, 62B satisfies the condition.

[0056] As a result, when an impact load F2 is input to the bag body 16 from the front side by the bag body 16 being moved relative to the box body 18 in the thickness direction, the folded portions 62A, 62B of the bag body 16 are deformed, thereby cushioning the impact load F2. As a result, the impact load F2 transmitted to the medical instrument 14 arranged on the front side of the base sheet 10 can be reduced, and the medical instrument 14 can be protected. In particular, in relation to such an effect, it is preferable that both the first folded portion 62A and the second folded portion 62B are positioned at positions overlapping the front side of the base sheet 10.

[0057] Please refer to Fig. 8. The above-mentioned folded portions 62A, 62B are located at positions overlapping the front side in the thickness direction with the buffer region 50 provided at the end portion 30e of the main surface portion 30 of the base sheet 10. Fig. 8 shows an example in which only the second folded portion 62B satisfies this condition, but both the first folded portion 62A and the second folded portion 62B may satisfy this condition. The advantages of this will be explained.

[0058] As described above, consider the case where the cushioning region 50 at the end 30e of the main surface portion 30 is crushed and deformed by the impact load F1 in the longitudinal direction Y being input to the base sheet 10. In this case, the folded parts 62A, 62B of the bag body 16 at the portion overlapping the cushioning region 50 in the thickness direction can also be crushed and deformed, which is advantageous in that both can cushion the impact load. In particular, compared to the case where the folding region 52 is provided at the end 30e of the main surface portion 30, it is advantageous in that the deformation of the folded parts 62A, 62B of the bag body 16 at the portion overlapping the end 30e of the main surface portion 30 in the thickness direction can be promoted. In addition, since the side parts 34A, 34B are not present at the portion where the cushioning region 50 of the base sheet 10 is present, it is advantageous in that it is easy to arrange the folded parts 62A, 62B (particularly the second folded part 62B) of the bag body 16 at the portion overlapping the cushioning region 50 in the thickness direction.

[0059] 12(A), the box body 18 has an inner surface 18f that faces the base sheet 10 in the longitudinal direction Y. The box body 18 has a pair of short side surface portions 18g provided on both sides in the longitudinal direction Y, and the inner surface 18f is provided on the inside of each of the short side surface portions 18g.

[0060] Inside the box body 18, a space 70 is provided that allows the side surface portions 34A, 34B of the base sheet 10 to approach the inner surface 18f of the box body 18 when the base sheet 10 approaches the inner surface 18f of the box body 18 in the longitudinal direction Y due to crushing deformation of the buffer region 50 of the base sheet 10. The space 70 is provided on the front side (the front side of the paper in FIG. 12(A)) of the main surface portion 30 of the base sheet 10, at a location that overlaps with the side surface portions 34A, 34B of the base sheet 10 in the longitudinal direction Y. In this embodiment, the space 70 is provided at the four corners inside the box body 18 when viewed from the thickness direction of the base sheet 10 (the viewpoint of FIG. 12(A)), and between the inner surface 18f of the box body 18 and the side surface portions 34A, 34B of the base sheet 10 that face the longitudinal direction Y. In this space 70, other than the bag body 16, there is no member that abuts against the side surface portions 34A, 34B of the base sheet 10 in the longitudinal direction Y and thereby restricts the approach of the side surface portions 34A, 34B to the inner surface 18f of the box body 18 in the longitudinal direction Y. The "restricting member" here refers to a cushioning member or the like stored inside the box body 18. Note that in this space 70, a part of the folded portions 62A, 62B of the bag body 16 described above is disposed.

[0061] This advantage will be explained. As shown in Fig. 12(B), consider a case where the base sheet 10 approaches the inner surface 18f of the box body 18 in the longitudinal direction Y, and an impact load in the longitudinal direction Y is input from the inner surface 18f of the box body 18 to the base sheet 10. In this case, in the above-mentioned space 70, the side portions 34A and 34B of the base sheet 10 can approach the inner surface 18f of the box body 18 in the direction D4 without being restrained by other members. As a result, the buffer area 50 of the base sheet 10 can easily be crushed and deformed in the longitudinal direction Y. Here, the buffer area 50 of the base sheet 10 is shown with double hatching.

[0062] Next, variations of each of the components described above will be described.

[0063] The medical device 14 packaged in the package 12 is not limited to one having the main body portions 14a, 14b and the linear portions 14c, 14d. When the medical device 14 has the main body portions 14a, 14b and the linear portions 14c, 14d, it may have only the main body portion 14a such as a handle and the main linear portion 14c such as a catheter shaft.

[0064] The buffer region 50 of the base sheet 10 may be provided in the middle in the longitudinal direction of the principal surface portion 30. When the buffer region 50 is provided at the end portion 30e in the longitudinal direction X of the principal surface portion 30, the buffer region 50 may have a linear shape along the short direction X at the outer edge portion 30d of the principal surface portion 30.

[0065] In order to maintain the base sheet 10 stored in the box body 18 in a folded state, it is not essential to satisfy the dimensional conditions related to the outer dimension L52 of the folding region 52 and the inner dimension L18 of the box body 18 described above. For example, a spacer such as a cushioning material may be disposed between the side surface portions 34A, 34B of the base sheet 10 and the long side surface portion 18e of the box body 18, and the base sheet 10 may be maintained in the folded state by the spacer.

[0066] The folding regions 52 of the base sheet 10 may be provided such that the main body portions 14a, 14b protrude from the folding regions 52 when the medical device 14 is held by the holding portions 36A to 36C.

[0067] Up to this point, the positional relationship of each component of the packaging body 12 has been described using the short-side direction X and the long-side direction Y of the base sheet 10. The matters described up to this point may be understood by replacing the "short-side direction X" with the "first direction" and the "long-side direction Y" with the "second direction". The description up to this point may be understood as an example in which the first direction is the short-side direction X and the second direction is the long-side direction Y. Alternatively, the contents in which these directions are interchanged, that is, the first direction is the long-side direction Y and the second direction is the short-side direction X, are also included in the scope of the present disclosure. For example, the base sheet 10 may have a main surface portion and a side surface portion adjacent to the main surface portion in the long-side direction Y (first direction) with a ruled portion sandwiched therebetween. In this case, it is sufficient that the outermost end of the ruled portion that is the outermost in the short-side direction X (second direction) is located inside the short-side direction X of the outermost end of the main surface portion on the same side in the short-side direction X.

[0068] The above-mentioned embodiment and modified forms are examples. The technical ideas abstracted from these should not be interpreted as being limited to the contents of the embodiment and modified forms. The contents of the embodiment and modified forms are subject to many design changes, such as changes, additions, and deletions of components. In the above-mentioned embodiment, the contents subject to such design changes are emphasized by adding the notation "embodiment". However, design changes are also permitted even in contents without such notation. The hatching on the cross section of the drawing does not limit the material of the object to which the hatching is added. The structures and numerical values ​​referred to in the embodiment and modified forms naturally include those that can be considered to be the same when considering manufacturing errors such as dimensional errors. [Explanation of symbols]

[0069] 10...base sheet, 12...packaging body, 14...medical device, 14a...main body portion, 14c...linear portion, 16...bag body, 18...box body, 30...main surface portion, 30a...flat portion, 30b...ruled portion, 30c...outermost end, 32...ruled portion, 32a...outermost end, 34A, 34B...side portion, 36A...holding portion, 50...buffering area, 52...folding area, 60...storage portion, 62A, 62B...folded portion.

Claims

1. Medical equipment and A base sheet for holding the medical instrument; A bag body that encloses the base sheet together with the medical instrument; A box for storing the bag body, The base sheet is A main surface portion for holding the medical instrument; A side surface portion adjacent to the main surface portion in a first direction; a folding line portion provided between the main surface portion and the side surface portion and extending along a second direction perpendicular to the first direction; a buffer region formed of the main surface portion at a position not overlapping with the ruled line portion in the first direction, The base sheet is stored in the box in a folded state in which the base sheet is folded at the crease portion, an outer edge portion of the main surface portion that is on the outer side in the second direction is provided on the outer side in the second direction of an outermost end of the ruled line portion that is on the outermost side in the second direction when the base sheet is in the folded state, and constitutes a part of the buffer region; the bag body includes a storage section that stores the base sheet, and a folding section that is provided on at least one of the first direction and the second direction relative to the storage section, The folding portion is located in a thickness direction of the package so as to overlap the cushioning area on the front side on which the medical instrument is located.

2. The packaging body according to claim 1 , wherein the buffer region is provided at an end portion of the main surface portion in the second direction, and has a shape that gradually narrows in the first direction as it extends outward in the second direction.

3. the base sheet includes a folding region including the main surface portion and the side surface portion, the folding region being located at a position overlapping the ruled line portion in the first direction, The package according to claim 1 , wherein an outer dimension of the folding region in the first direction is greater than an inner dimension of the box body in the first direction.

4. The packaging body according to claim 1 , wherein the main surface portion is provided with a holding portion capable of holding a part of the medical instrument in an upright state relative to the flat surface portion of the main surface portion.

5. The medical device includes at least one main body portion and at least one flexible linear portion connected to the main body portion; the base sheet includes a folding region including the main surface portion and the side surface portion, the folding region being located at a position overlapping the ruled line portion in the first direction, The packaging body according to claim 4 , wherein the folding region is provided so that the main body portion fits within the folding region when the medical instrument is held by the holding portion.

6. The folding portion includes a first folding portion provided in the first direction relative to the storage portion and a second folding portion provided in the second direction relative to the storage portion, The packaging body according to claim 1 , wherein both the first folded portion and the second folded portion are positioned so as to overlap with the front side of the base sheet in the thickness direction.

7. The box body has an inner surface facing the base sheet in the second direction, The packaging body described in claim 1, wherein a space is provided inside the box body to allow the side portion to approach the inner surface when the base sheet attempts to approach the inner surface in the second direction due to crushing and deformation of the buffer area.

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