Packaging tray for medical devices, in particular for caps intended to seal vials for pharmaceutical use

Abstract

The invention relates to a packaging tray (10) for medical devices (100), having a honeycomb structure (1) which: - defines a plurality of hexagonal hollow compartments (2), each compartment being delimited by side walls (3), two adjacent compartments (2) always having one side wall in common; and - comprises a planar contour (4) giving the tray a rectangular shape. Each compartment (2) intended to accommodate a medical device (100) has at least two flexible tabs (31, 32), each flexible tab being either integrally formed in a side wall (3) delimiting the compartment (2) or formed between two side walls (3) delimiting the compartment (2). Each flexible tab (31, 32) comprises a free end intended to bear against the medical device (100) in order to keep it immobile in the compartment (2).

Description

Packaging tray for medical devices, particularly for caps intended to seal pharmaceutical vials FIELD OF INVENTION

[0001] The present invention relates to the field of packaging for medical devices. It relates in particular to a packaging tray adapted for holding, storing and / or transporting caps, stoppers, bottles or syringes, for pharmaceutical use.

[0002] TECHNOLOGICAL BACKGROUND OF THE INVENTION

[0003] It is common practice for caps, intended to seal vials after they have been filled with a medical product, to be grouped together on a packaging tray for storage, transport, and handling before use. This group packaging prevents these caps, which are considered medical devices, from being contaminated or damaged by contact and friction between them.

[0004] Document EP3505458 proposes this type of packaging. Caps held by hook systems on the underside of a packaging tray can be stored, transported and then collectively assembled onto bottles, which can also be held by a suitable packaging tray.

[0005] Document EP3967624 (or US12187490 B2) also describes a packaging tray for medical caps. Multiple trays can be stacked and work together to secure the caps in a compartment. In use, caps from the top tray can be individually removed to seal a bottle; when the top tray is empty, it can be removed from the stack to access the caps in the bottom tray.

[0006] Other conditioning trays exist, notably described in documents US12186525 B2, CN103359348 B and FR3131574 A1.

[0007] For economic and environmental reasons, it remains necessary to further limit the amount of plastic required to manufacture these packaging trays. However, the flatness, sturdiness, stackability, and reliability of the trays in holding caps (or medical devices in general) remain essential criteria to ensure.

[0008] SUBJECT OF THE INVENTION

[0009] The present invention proposes a packaging tray for medical devices, in particular caps intended to seal pharmaceutical vials, the structure of which makes it possible to limit the amount of material used while guaranteeing the expected mechanical properties.

[0010] BRIEF DESCRIPTION OF THE INVENTION

[0011] The invention relates to a packaging tray for medical devices, having a honeycomb structure extending along a principal plane, the honeycomb structure:

[0012] - defining a plurality of hollow, hexagonal compartments, each compartment being delimited by lateral walls normal to the main plane, with any two adjacent compartments always sharing a lateral wall,

[0013] - comprising a flat contour giving the packaging tray a rectangular shape, the flat contour extending parallel to the main plane.

[0014] Each compartment is designed to accommodate a medical device on the side of a top surface of the honeycomb structure, and has at least two flexible tabs, each flexible tab including a free end designed to bear against the medical device to hold it immobile in the compartment.

[0015] The packaging tray is notable in that a flexible tab is attached to at least one side wall, on the side of the upper surface of the honeycomb structure, and has a free end oriented towards the lower surface, each flexible tab being either formed entirely in a side wall delimiting said compartment, or formed between two side walls delimiting said compartment.

[0016] According to advantageous and non-limiting features of the invention, which may be taken individually or in any technically possible combination: each compartment intended to house a medical device has a stop extending parallel to the main plane, continuous with a lower surface of the honeycomb structure; each compartment has a stop composed of three to six bars attached to the side walls of said compartment, and having free ends pointing towards a central axis of the compartment; each compartment has a stop composed of at least three bars attached to the side walls of said compartment, and meeting vertically above a central axis of the compartment or meeting on a ring centered on the central axis of the compartment; a side wall carries only a flexible tab of a given compartment;peripheral side walls, which support the flat contour, have a height, along an axis normal to the main plane, greater than that of the side walls defining the upper surface of the honeycomb structure, so that the flat contour is raised relative to the upper surface; the -at least- two flexible tabs of a compartment are formed respectively in two opposite side walls delimiting said compartment or respectively in two non-adjacent side walls delimiting said compartment; each compartment intended to accommodate a medical device has a wedge formed by local overthickness of a side wall delimiting said compartment, said wall being a different wall from the two walls in which the flexible tabs are formed; the free end of a flexible tab includes a boss intended to be in contact with the medical device when the latter is in the compartment;the boss is configured so that a lower face of said boss, oriented towards the lower surface of the honeycomb structure, has a faceted plane forming an angle with the main plane, between 15° and 70°; each compartment has three flexible tabs, each formed between two side walls delimiting said compartment; the packaging tray is injection molded or produced by 3D printing from polypropylene or polyethylene butylene terephthalate; the thickness of the side walls is less than 2mm; the medical devices can be of the type caps, stoppers, bottles or syringes;the packaging tray further includes medical devices of the type caps, arranged in compartments, each cap comprising an outer cylindrical body, a cage locked in the outer body, a stopper held in the cage, and an upper capsule closing one face of the outer body, the other face of the outer body being open, and each cap being entirely contained in a compartment; each compartment having defined dimensions such that a functional clearance of the order of 0.5mm to 1mm exists between an outer diameter of the cap and a distance between two opposite lateral walls of the compartment; the capsule of each cap is in contact with the flexible tabs of a compartment, the capsule being arranged on the side of a lower surface of the honeycomb structure;only the outer body of each cap is in contact with the flexible tabs of a compartment, the cap being positioned on the side of a superior surface of the honeycomb structure. BRIEF DESCRIPTION OF THE FIGURES

[0017] Other features and advantages of the invention will become apparent from the detailed description of the invention which follows with reference to the accompanying figures in which:

[0018]

[0019]

[0020]

[0021] La, la, laet lapresent packaging trays conforming to the invention, in perspective;

[0022] This presents an example of a cap for a bottle for pharmaceutical use, a plurality of such caps being capable of being packaged in a packaging tray according to the invention, in particular those shown in figures 1a, 1b and 1c;

[0023]

[0024]

[0025] La, la and la represent three embodiments of the conditioning tray according to the present invention; la comprises a variant without a stop (i) and a variant with a stop (ii);

[0026]

[0027]

[0028]

[0029] La, la, laet la represent packaging trays according to the present invention, viewed from below, that is to say from the side of the lower surface of the honeycomb structure;

[0030]

[0031] Laet present a "head up" placement configuration of a cap in a packaging tray according to the invention;

[0032]

[0033] Laet and present a "head down" placement configuration of a cap in a packaging tray according to the invention;

[0034] Presents an enlarged view of a cap held in a compartment of a packaging tray according to the invention, in truncated side view.

[0035] In the descriptive section, the same references on the figures can be used for elements of the same type. DETAILED DESCRIPTION OF THE INVENTION

[0036] The present invention relates to a packaging tray 10 for medical devices, particularly for caps 100, especially for pharmaceutical use. Examples of empty trays 10 (i.e., not holding caps 100) are shown in Figures 1a, 1b, 1c, and 1d; an example of a cap 100 is also shown in these figures.

[0037] A cap 100, in the context of the invention, preferably comprises a cylindrical body, which houses an elastomer stopper 104 intended to seal the opening F3 of the neck F2 of a bottle F after it has been filled; the bottle F is usually formed of a cylindrical body F4 and a collar F1 defining the end of the neck F2 ().

[0038] The cap 100 has a closed upper part and is designed to securely stopper and seal the bottle F filled, for example, with a pharmaceutical product. Advantageously, the cap 100 consists of an outer body 101, an upper cap 102, a cage 103, and the stopper 104 having a head 104a and a foot 104b, as, for example, described in documents EP2464577 or FR3098504.

[0039] Although the description focuses in particular on caps 100 as medical devices, the invention also extends to packaging trays for caps 104, vials F or syringes, for which only the dimensions of the trays 10 and the compartments 2 need to be adjusted to the type of medical device.

[0040] The conditioning tray 10 has a honeycomb structure 1 extending along a principal plane (x,y). The honeycomb structure 1 defines a plurality of hollow, hexagonal compartments 2. Each compartment is delimited by lateral walls 3, normal to the principal plane (x,y). Two adjacent compartments 2 always share a lateral wall 3. The upper surface 1a of the honeycomb structure 1 is defined by the plane (parallel to the plane (x,y)) passing through the upper edges of the lateral walls 3. The lower surface 1b of the honeycomb structure 1 is defined by the plane (also parallel to the plane (x,y)) passing through the lower edges of the lateral walls 3.

[0041] The honeycomb structure 1 includes a planar contour 4 which gives the conditioning tray 10 a rectangular shape. The planar contour 4 extends parallel to the main plane (x,y), either continuous with the upper surface 1a of the honeycomb structure 1, or slightly raised along the z-axis relative to this upper surface 1a. When the planar contour 4 is raised relative to the upper surface 1a, this implies that the peripheral side walls 3p which support the planar contour 4 have a greater height than the other side walls 3 (namely, the central side walls 3 which are not in direct contact with the planar contour 4) (Figures 1b, 1c, 1d).

[0042] The caps (or in general, medical devices) 100 are intended to be inserted into the upper face 10a side of the tray 10 (the upper surface 1a side) for storage, and are intended to be extracted from this same upper face 10a for use and potentially direct assembly onto a bottle F.

[0043] The upper face 10a of the packaging tray 10 is preferably oriented upwards when the tray is used to load and package a plurality of caps 100. Such a tray 10 can be placed in a storage container, which is usually sealed with a film (for example, a TYVEK® sheet) to prevent contamination of the caps 100 during storage and transport. Several trays 10 can be stacked in the same storage container. The lower face 10b (the face opposite the upper face 10a) of a tray 10 in the upper position is then in contact with the upper face 10a of another tray 10 placed below it.

[0044] It is nevertheless possible to use the packaging tray 10, alone or stacked, with the upper face 10a facing downwards. Naturally, the upper face 10a of a tray 10 placed in the upper position will then be in contact with the lower face 10b of another tray 10 placed below.

[0045] Each compartment 2 is designed to hold a cap 100.

[0046] A compartment 2 allows the cap 100 to be centered and prevents it from tilting laterally, a tilting which is a disadvantage of the solution proposed by the prior art EP3505458 because it is likely to cause the cap 100 to come loose.

[0047] In addition, the dimensions of each compartment 2 are defined so that a functional clearance of the order of 0.5mm to 1mm, preferably of 0.5mm to 0.8mm, exists between the outer diameter of a cap 100 and the distance between two opposite walls 3 of the compartment 2. This allows the dimensional variations of the caps 100 to be absorbed and, above all, the positioning of the caps 100 in the packaging tray 10 to coincide with the positioning of the bottles F in their packaging tray, in the context of a collective assembly ("nest-to-nest" according to English terminology), the dimensional tolerance being on the order of a millimeter for the said trays (plastics processing).

[0048] Each compartment 2 has at least two flexible tabs 31, 32, 33, 31', 32', 33' which cooperate to hold said cap 100 in the compartment 2. Each flexible tab 31, 32, 33, 31', 32', 33' includes a free end 31b, 32b, intended to bear against the cap 100 to hold it immobile in the compartment 2. The functional clearance between the dimensions of the compartment 2 and the outer diameter of the cap 100, coupled with the flexibility of the tabs 31, 32, 33, 31', 32', 33' nevertheless allows for some adjustment of the positioning of the cap 100 if the latter comes into contact with a bottle F, in particular during the cap / bottle assembly.

[0049] According to a first embodiment, each flexible tongue 31, 32, 33 is formed entirely within a side wall 3 delimiting the compartment 2 (Figures 3a, 3c). Advantageously, the flexible tongue 31, 32, 33 consists of a relatively central portion of the side wall 3, separated from the rest of the wall by grooves extending along the z-axis, normal to the principal plane (x,y), from the lower surface 1b of the honeycomb structure 1, up to a predetermined height of the wall 3. This height defines the level of flexibility of the tongue 31, 32, 33 along an axis perpendicular to the side wall 3. Each tongue 31, 32, 33 is therefore fixedly attached to the side wall 3 on the side of the upper surface 1a of the honeycomb structure 1, and free on the side of the lower surface 1b.

[0050] For example, in the case of side wall 3 with a total height of 17mm, the determined height, over which the grooves extend, can go up to 15.5mm, i.e. up to about 90% of the total height.

[0051] Advantageously, the free end 31b,32b of a flexible tab 31,32,33 includes a boss intended to be in contact with the cap 100 when the latter is in compartment 2, and to participate in keeping said cap 100 in compartment 2.

[0052] According to a second embodiment, each flexible tab 31', 32', 33' is formed between two lateral walls 3 delimiting said compartment 2. Said two lateral walls 3 are then connected only by an upper section 6 (on the side of the upper surface 1a), from which extends a flexible tab 31', 32', 33'. The tab 31', 32', 33' extends towards the lower surface 1b and advantageously, substantially towards the interior of the compartment 2. It can typically form an angle of between a few degrees and a few tens of degrees with the z-axis.

[0053] Advantageously, three flexible tabs 31' originate from the same upper section 6, which is connected to three lateral walls 3 respectively of three adjacent compartments 2; each of the three tabs 31' extends into a different compartment and will participate in maintaining a cap 100 in said compartment 2.

[0054] The free end of a flexible tab 31',32',33' may include a boss intended to be in contact with the cap 100 when the latter is in compartment 2.

[0055] In the first and second embodiments, each tab 31, 32, 33, 31', 32', 33' is therefore fixed to at least one side wall 3 (or a peripheral side wall 3p), on the side of the upper surface 1a of the honeycomb structure 1, and has a free end 31b, 32b oriented towards the lower surface 1b. This configuration is particularly advantageous because it allows for minimal effort to insert the cap 100 into the compartment 2, the flexible tabs 31, 32, 33, 31', 32', 33' operating a spreading movement (deflection outwards from the compartment) when the cap 100 passes from the upper surface 1a to the lower surface 1b.This configuration can also provide robust retention (synonymous with high extraction effort) of the caps 100 in the compartments 2, without requiring oversized tabs: this will be described more particularly with reference to an example of implementation of the invention with the caps 100 arranged "upside down" in the compartments 2.

[0056] The packaging tray 10 according to the invention exhibits rigidity, due to its honeycomb structure, ensuring it remains flat and allows for easy and efficient stacking of multiple trays 10. The side walls 3, arranged according to the honeycomb structure 1, as well as the flat contour 4, can be very thin, advantageously with a thickness of 2 mm or less, 1 mm, or even 0.8 mm. The thinness of the material constituting the packaging tray 10, along with its highly perforated design, significantly limits the volume of material used in its manufacture. Furthermore, an eco-friendly material, such as polypropylene, can be chosen to further reduce the environmental impact. Alternatively, the packaging tray 10 can be made of polyethylene terephthalate.

[0057] The openwork design also has advantages in terms of decontamination, because when a decontaminating fluid is used, it easily reaches the different points of the tray.

[0058] The packaging tray 10 also ensures the protection of the cap 100, as the latter is isolated from the other caps by being held in a compartment 2. The side walls 3 provide separation between the caps 100 held in two adjacent compartments 2. The total thickness of the tray 10, along a z-axis normal to the principal (x,y) plane of the tray 10, is significantly greater than the height of the cap 100; typically, their difference is on the order of 0.1 to 2 mm. For example, for caps 100 approximately 15 mm high, the total thickness of the tray 10 can be approximately 17 mm.

[0059] The number of 10 stackable trays in a storage container is thus greatly optimized, and as a result, the capacity of said container is improved.

[0060] The packaging tray 10 is advantageously produced using a known technique of injection molding, or 3D printing.

[0061] Advantageously, each compartment 2 intended to accommodate a cap 100 has at least one stop 5 extending parallel to the main plane (x,y), in continuity with the lower surface 1b of the honeycomb structure 1 (,,,(ii),), in other words, the stop 5 is integral (on the side of the lower surface 1b) with at least one lateral wall 3 delimiting a compartment 2.

[0062] This stop 5 can take any shape. Preferably, to limit the amount of material, the stop 5 does not completely close the lower face of each compartment 2; note that the lower face of a compartment 2 corresponds to the hexagonal face extending in the (x,y) plane on the side of the lower surface 1b of the honeycomb structure 1.

[0063] According to a first variant, the stop 5 is composed of at least three bars (for example, three, four, five or six) meeting vertically at a central axis of compartment 2 (,).

[0064] According to a second variant, the stop 5 is formed of at least two (for example three, four, five or six) bars having free ends pointing towards a central axis of compartment 2 (,,(ii)).

[0065] According to a third variant, illustrated in Figures 1d, 3c, and 4d, the stop 5 is formed by a ring centered on compartment 2 and connected to the side walls 3 by at least three bars (for example, three, four, five, or six). It should be noted that the perforation of the side walls 3 and the use of six bars, as in the illustrated example, are particularly advantageous for improving material flow and preventing bonding points during the injection molding of the tray 10.

[0066] As an example, the bars forming the stop 5, whether joined or separated, can have a width between 1.5 and 3 mm (in the (x,y) plane) and a radial length (in the (x,y) plane) between 3 and 8 mm, for compartments with a lateral dimension (in the x,y plane) of approximately 17 mm. The ring or other geometry of the stop 5 can have a width similar to that mentioned for the bars.

[0067] In the first embodiment, in which each flexible tab 31, 32, 33 is formed integrally within a side wall 3, said side wall 3 preferably carries only one flexible tab 31, 32, 33 intended to bear against a cap 100 in a given compartment 2. In other words, the side wall 3 does not carry two flexible tabs, one for a given compartment and the other for an adjacent compartment.

[0068] Still in the first embodiment, advantageously, the -at least- two flexible tabs 31,32,33 of a compartment 2 are formed respectively in two opposite side walls 3 delimiting said compartment 2 or respectively in two non-adjacent side walls 3 delimiting said compartment 2. According to another variant, three flexible tabs 31,32,33 are carried by three side walls 3 of the compartment 2; typically one tab 31,32,33 is provided on one of the two walls.

[0069] In the second embodiment, the examples of the proposed configuration with three flexible tabs 31',32',33' in each compartment 2 to ensure the retention of the cap 10.

[0070] According to the first or second embodiment, when each compartment 2 intended to accommodate a cap 100 has two flexible tabs 31,32, it may further include a wedge 6 formed by local overthickness of a lateral wall 3 delimiting said compartment 2; said wall 3 is then a different wall from the two walls 3 in which the flexible tabs 31,32 are formed.

[0071] Advantageously, the side walls 3 which do not fulfill an additional function, i.e. free from flexible tongue 31,32,33 or wedge 6, can be perforated, so as to further promote material saving.

[0072] An important advantage of the packaging tray 10 according to the invention is also that it can accept the caps 100 "upright" () or "downright" ().

[0073] Recall that each cap 100 preferably comprises a cylindrical outer body 101, a cage 103 locked into the outer body 101, a cap 104 held in the cage 103, and an upper cap 102 closing one face of the outer body 101, the other face of the outer body 101 being open. As mentioned previously, when a cap 100 is inserted into a compartment 2 (on the side of the upper surface 1a), it is entirely contained within it, that is to say, it does not protrude beyond the total thickness of the tray 10.

[0074] In the context of this invention, "upside down" means that the upper capsule 102 of the cap 100 is positioned on the side of the upper surface 1a of the honeycomb structure 1, as illustrated in Figures 5a and 5b. When the upper capsule 102 of the cap 100 is positioned on the side of the lower surface 1b, its position is said to be "upside down" (Figures 6a, 6b). The tray 10 allows the caps 100 to be stored in either of these positions.

[0075] In the "head down" position, the upper capsule 102 of each cap 100 is in contact with the flexible tabs 31,32,33, 31',32',33' of a compartment 2.

[0076] In particular, as can be seen in Figure 1, the bosses of the flexible tabs 31, 32 fit into a recess in the transition region between the upper capsule 102 and the outer body 101. When loading the tray 10, the caps 100 are brought to the side of the upper face 10a of the tray 10 and inserted into the compartments 2 "upside down": as the upper capsule 102 passes between the bosses, the flexible tabs 31, 32 move slightly apart and return to their original position once the capsule 102 has passed them, fitting into the aforementioned recess. The presence of a stop 5 in each compartment 2 on the side of the lower surface 1a of the honeycomb structure 1 helps to secure the vertical movement (along the z-axis) of the caps 100 in the compartments, but is not essential.

[0077] As mentioned previously, the configuration of the flexible tabs 31, 32, 33, 31', 32', 33' attached to the side walls 3 on the side of the upper surface 1a and free on the side of the lower surface 1b ensures robust retention of the caps 100 as soon as the boss 32c formed at the free end 31b, 32b of each tab is wedged into the recess corresponding to the transition region between the upper capsule 102 and the outer body 101 of a cap 100. Indeed, an extraction force will naturally cause the flexible tabs to tighten towards the interior of the compartment 2, thus promoting the retention of the cap 100. This configuration therefore does not require thick and robust tabs to ensure significant mechanical strength; it is thus possible to form thin tabs and reduce the amount of material in the plate 10.

[0078] Advantageously, the boss 32c of each tab is configured such that the lower face of said boss 32c, oriented towards the lower surface 1b of the honeycomb structure 1, has a faceted plane forming an angle α with the principal plane (x,y) between 15° and 70°. The angle α is preferably chosen to be greater than or equal to 20°, 25°, or 30° to avoid forming a self-locking clip. It is preferably chosen to be less than or equal to 60°, 50°, or 40° to adjust the force required for removing the cap 100.

[0079] This configuration is obviously not limited to an implementation with 100 caps and could be applied to any other medical device for which the boss 32c at the free end 31b,32b would cooperate with an element of said device.

[0080] In the "head up" position, only the outer body 101 of each cap 100 is in contact with the flexible tabs 31,32,33, 31',32',33' of a compartment 2 ().

[0081] In particular, the bosses of the flexible tabs 31, 32 bear against the external body 101. When loading the tray 10, the caps 100 are brought to the side of the upper surface 1a of the tray 10 and inserted into the compartments 2 "head up": when the external body 101 reaches the bosses, the flexible tabs 31, 32, 33 spread apart slightly, applying a holding force against said body 101 and allowing the cap 100 to remain in the compartment 2. Although not essential, the presence of a stop 5 in each compartment 2 on the side of the lower surface 1a of the honeycomb structure 1 is beneficial here for securing the vertical movement (along the z-axis) of the caps 100 in the compartments 2.

[0082] As illustrated in Figures 5b and 6b, the stacking of packaging trays 10 according to the invention provides a very compact assembly that increases the capacity of standard storage containers. To facilitate stacking, alignment guides or studs can be provided, particularly on and / or in the flat contour 4, as well as potentially on the peripheral side walls 3p.

[0083] It can be advantageous (as illustrated) for the peripheral side walls 3p connected to the planar contour 4 to be slightly higher than the other (non-peripheral) walls 3. This height difference between the peripheral side walls 3p connected to the planar contour 4 and the (more numerous) central side walls 3, which define the height of the upper surface 1a, allows for a significant reduction in the weight of the platform 10 because less material is used; the height difference can typically range from 1 mm to a few millimeters (e.g., 3 mm or 3.5 mm) in the aforementioned platform examples. The offset of the upper surface 1a relative to the planar contour 4 is made possible by the configuration of the flexible tabs with their free ends oriented towards the lower surface 1b of the honeycomb structure 1.

[0084] Remember that the total height of the plate 10 is greater than the height of the caps 100 so that the latter never come into contact with a superimposed plate 10.

[0085] The packaging tray 10 is illustrated in the figures with one hundred compartments 2 for holding caps 100. Its lateral dimensions can be on the order of a few tens of centimeters (for example, approximately 22.5 cm by 17.4 cm). Of course, these dimensional examples are not limiting, and trays 10 according to the present invention can be designed with 9, 16, or even 48 compartments 2 for caps 100, with dimensions adapted to the number of compartments and the size of said caps 100.

[0086] As mentioned at the beginning of the description, the packaging tray 10 can also be used to hold other types of medical devices such as caps 104, vials F, or syringes. In this case, it will be necessary to adapt the lateral and thickness dimensions of the tray 10 and the compartments 2 to allow each device to be fully contained within a compartment 2 and for the flexible tabs to rest against the device to hold it securely in place.

[0087] Of course, the invention is not limited to the modes of implementation and examples described, and alternative embodiments may be introduced without departing from the scope of the invention as defined by the claims.

Claims

Packaging tray (10) for medical devices (100, 104, F), having a honeycomb structure (1) extending along a principal plane (x, y), the honeycomb structure (1): - defining a plurality of hollow hexagonal compartments (2), each compartment (2) being delimited by lateral walls (3) normal to the principal plane (x, y), two adjacent compartments (2) always having a lateral wall (3) in common, - comprising a planar contour (4) giving the packaging tray (10) a rectangular shape, the planar contour (4) extending parallel to the principal plane (x, y), each compartment (2) being intended to hold a medical device (100) on the side of an upper surface (1a) of the honeycomb structure (1), and having at least two flexible tabs (31, 32, 33, 31', 32', 33'), each flexible tab (31,32,33,31',32',33') comprising a free end intended to bear against the medical device (100) to hold it immobile in the compartment (2), the packaging tray (10) being characterized in that a flexible tab (31, 32, 33, 31', 32', 33') is integral with at least one side wall (3), on the side of the upper surface (1a) of the honeycomb structure (1), and comprises a free end (31b, 32b) oriented towards the lower surface (1b), a flexible tab (31, 32, 33, 31', 32', 33') being either formed integrally in a side wall (3) delimiting said compartment (2), or formed between two side walls (3) delimiting said compartment (2). Packaging tray (10) according to claim 1, in which each compartment (2) intended to accommodate a medical device (100,104,F) has a stop (5) extending parallel to the main plane (x,y), in continuity with a lower surface (1b) of the honeycomb structure (1). Packaging tray (10) according to claim 2, in which each compartment (2) has a stop (5) composed of three to six bars attached to the side walls (3) of said compartment (2), and having free ends pointing towards a central axis of the compartment (2). Packaging tray (10) according to claim 2, in which each compartment (2) has a stop (5) composed of at least three bars attached to the side walls (3) of said compartment (2), and meeting vertically on a central axis of the compartment (2) or meeting on a ring centered on the central axis of the compartment (2). Packaging tray (10) according to any one of the preceding claims, wherein peripheral side walls (3p), which support the planar contour (4), have a height, along an axis (z) normal to the main plane (x,y), greater than that of the side walls (3) not in direct contact with the planar contour (4) which define the upper surface (1a) of the honeycomb structure (1), so that the planar contour (4) is raised relative to the upper surface (1a). Packaging tray (10) according to any one of the preceding claims, in which the -at least- two flexible tabs (31,32,33) of a compartment (2) are formed respectively in two opposing side walls (3) delimiting said compartment (2) or respectively in two non-adjacent side walls (3) delimiting said compartment (2). Packaging tray (10) according to any one of the preceding claims, in which each compartment (2) intended to accommodate a medical device (100,104,F) has a wedge (6) formed by local overthickness of a lateral wall (3) delimiting said compartment (2), said wall (3) being a wall different from the two walls (3) in which the flexible tabs (31,32,33) are formed. Packaging tray (10) according to any one of the preceding claims, wherein the free end (31b,32b) of a flexible tab (31,32,33) includes a boss (32c) intended to be in contact with the medical device (100,104,F) when the latter is in the compartment (2). Packaging tray (10) according to any one of the preceding claims, in which the boss (32c) is configured so that a lower face of said boss (32c), oriented towards the side of the lower surface (1b) of the honeycomb structure (1), has a faceted plane forming an angle (α) with the principal plane (x,y), between 15° and 70°. Packaging tray (10) according to any one of the preceding claims, injection molded or produced by 3D printing from polypropylene or butylene terephthalate. Packaging tray (10) according to any one of the preceding claims, wherein the thickness of the side walls is less than 2mm. Packaging tray (10) according to any one of claims 1 to 11, further comprising cap-type medical devices (100), arranged in compartments (2), and in which: - each cap (100) comprises an outer body of cylindrical shape, a cage locked in the outer body, a stopper held in the cage, and an upper capsule closing one face of the outer body, the other face of the outer body being open, - each cap (100) is entirely contained in a compartment (2) - each compartment (2) has defined dimensions such that a functional clearance of the order of 0.5mm to 1mm exists between an outer diameter of the cap (100) and a distance between two opposite lateral walls (3) of the compartment (2). Packaging tray (10) according to the preceding claim, in which the capsule (102) of each cap (100) is in contact with the flexible tabs (31,32,33, 31',32',33') of a compartment (2), the capsule being disposed on the side of a lower surface (1b) of the honeycomb structure (1). Packaging tray (10) according to claim 12, in which only the outer body of each cap (100) is in contact with the flexible tabs (31,32,33, 31',32',33') of a compartment (2), the cap (102) being disposed on the side of an upper surface (1a) of the honeycomb structure (1).

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