Dressing protection and storage kit

Abstract

Dressing Protection and Storage Kits. The invention relates to a dressing protection kit (1) for a dressing (4) comprising at least one dressing (4) including: - a backing (2) having one face with at least one adhesive zone configured to fix the dressing (4) to an anatomical part; - a pad (5) fixed to the face of the backing (2) having the adhesive zone; the dressing protection kit (1) for a dressing (4) further includes a non-adhesive plate (3) to which the dressing (4) is detachably fixed at said adhesive zone of the backing (2). The invention relates to a dressing storage kit (4) comprising packaging and said dressing protection kit (1) for a dressing (4). Figure for the abstract: Figure 1

Description

Title of the invention: Dressing protection and storage kit

[0001] The present invention relates to a dressing protection kit (for example, first aid dressings for everyday life).

[0002] In everyday life, in case of minor domestic accidents or while travelling, first aid dressings are used. These dressings generally include: - a backing (for example a perforated polyethylene film), said backing having a face which has an adhesive area configured to fix the dressing to the skin around the periphery of a wound; - a compress made of an absorbent material which is fixed to the side of the support having the adhesive area intended to be in contact with the wound.

[0003] In addition, a protective film (for example, paper coated with a thin layer of silicone) is arranged to cover the entire surface of the backing that contains the adhesive area. More specifically, this protective film for the dressing consists of two tabs that are configured to overlap, and generally folded together, in the middle region of the dressing so as to allow the user to easily detach them from the dressing without touching the adhesive area of ​​the dressing during use.

[0004] The assembly formed by the dressing and the protective film is placed in a storage pouch which generally consists of two sheets (for example, two sheets of paper or plastic film). These two sheets sandwich the assembly formed by the dressing and the protective film and have three distinct zones: - a first gripping area at which the two sheets are free from each other so that they can be grasped separately and allow access to the dressing by separating the two sheets; - a 2nd protection zone of the assembly formed by the dressing and the protective film, at the level of which the two sheets are fixed against each other, at least partially around said assembly, and in a non-permanent manner; - a 3rd joint zone at which the two sheets are able to remain permanently fixed against each other.

[0005] In such a dressing storage envelope, it should be noted that: - the two tabs forming the protective film generate an extra thickness, in particular because they generally have a fold at their overlap area, said extra thickness thus contributes to increasing the volume of the storage envelope; - the dressing pad also generates an extra thickness which also causes an increase in the volume of the storage envelope.

[0006] This is why, in such a dressing storage envelope, the two sheets sandwiching the assembly formed by the dressing and the protective film each have a domed shape at the level of the 2nd protection zone due to the extra thickness of the tabs and the thickness of the compress.

[0007] This domed shape of the storage container has the following disadvantages: - it increases the volume of said storage container; - it increases the instability of stacking several storage envelopes stacked on top of each other, as well as the stacking of wafers when several storage envelopes are grouped together as described just below.

[0008] Indeed, according to the manufacturing process of the storage pouches used, it is possible to link several storage pouches together, each containing a dressing and its protective film, by means of pre-perforations extending along the longitudinal direction of the dressing. In this way, several dressings are grouped together in the form of dressing strips. To retrieve a dressing, the user must first detach one storage pouch from the rest of the storage pouches by cutting the pre-perforations.

[0009] Finally, it is known that such blister packs grouping several storage envelopes, each containing a dressing equipped with its protective film, can be stored in different types of packaging (for example, cardboard, metal or plastic boxes).

[0010] Thus, before the dressing can be applied to the wound, using dressings with such packaging requires several handling steps: namely, removing the strip of dressings from its storage box, separating one storage envelope from the others, then opening it to extract the dressing with its protective film, and finally separating the two tabs of the protective film from the dressing. These numerous and tedious handling steps are not easily performed by children, the elderly, and / or people with reduced hand dexterity. Furthermore, they delay the application of the dressing to the wound, and therefore its treatment.

[0011] Moreover, the use of these dressings with such packaging generates a lot of waste: namely the storage box, the storage envelopes grouped in blisters, as well as the protective film of each dressing.

[0012] Furthermore, dressings are medical devices subject to regulations, some of which concern the regulatory information that must appear on their packaging so that the user can be fully informed at the time of use. In this regard, the international standard ISO 20417 concerning "Medical devices - Information to be supplied by the manufacturer" and European Union Regulation 2017 / 745 of the European Parliament and of the Council of 5 April 2017 detail the provisions relating to this regulatory information. For example, the regulatory information must be printed in such a way as to be legible to a user from a distance of approximately 40 cm. The CE marking logo must have a minimum height of 5 mm.

[0013] In the case of storage envelopes grouped together in the form of a strip of dressings, it is essential that the regulatory information appears on each of these storage envelopes, so that the user can always have access to all of this regulatory information, even after having detached one or more storage envelopes from the rest of the strip of dressings.

[0014] However, the available surface area on these storage envelopes is not always sufficient to be able to record all this regulatory information in accordance with the regulatory provisions.

[0015] Thus, the packaging of dressings in such storage envelopes does not always allow compliance with all the regulatory provisions relating to the information that must appear on the packaging of medical devices, including dressings.

[0016] Furthermore, it is known that stacking such storage envelopes for transfer into packaging boxes is often unstable, due in particular to the diversity of formats and materials (generally paper) from which these storage envelopes are made, as well as their domed shape, as explained above. This instability in the stacking of the storage envelopes (whether stacked individually or in the form of trays) makes transferring these stacks of storage envelopes into packaging boxes complex. It is often necessary to stop the packaging line to remedy a jam of storage envelopes or a quantity shortage. In other words, handling these dressing storage envelopes is not easy, is unpredictable, and often causes problems on packaging lines for these storage envelopes.

[0017] In view of all these drawbacks with current packaging for dressings, particularly for wound care dressings, the inventors of the present invention have conceived and developed a new dressing protection kit which addresses This perfectly addresses all the shortcomings of known prior art bandage packaging and offers the following advantages: - Retrieving the dressing at the time of use is easy, perfectly accessible to everyone and quick; - it generates much less waste; - it provides sufficient surface area to be able to include all the mandatory regulatory information; - it can be stacked stably and reliably and therefore facilitate its transfer into storage packaging such as boxes (e.g. cardboard or plastic boxes).

[0018] The invention thus relates to a dressing protection kit comprising at least one dressing, said dressing comprising: - a support having one face which includes at least one adhesive area configured to fix the dressing to an anatomical part (for example the skin or a nail); - a compress fixed to the face of the support having the adhesive area; said dressing protection kit is characterized in that it further comprises an anti-adhesive plate having a first face and a second face, at least one dressing being fixed in a detachable manner at the level of said adhesive area of ​​said support on said first face of the anti-adhesive plate.

[0019] Preferably, the dressing protection kit comprises a plurality of dressings. For example, the dressing protection kit may comprise between 2 and 20, preferably between 3 and 10, dressings. In one embodiment of the invention, the dressing protection kit may comprise 2, 3, 4, 5, 6, 7, 8, 9, or 10 dressings.

[0020] When the dressing protection kit includes a plurality of dressings, said dressings may be identical or different from each other. The technical characteristics of the dressings are described in more detail below.

[0021] The non-adhesive backing thus protects the adhesive side of the dressing backing before the dressing is applied. The non-adhesive backing eliminates the need for the protective film, which consists of two tabs and is part of the protective packaging for the state-of-the-art dressings mentioned above.

[0022] As explained above, the dressing protection kit advantageously includes a plurality of dressings. The non-adhesive sheet thus allows several dressings to be protected simultaneously. The non-adhesive sheet has the advantage of generating much less waste than protective films consisting of two tabs which, it should be noted, must overlap in the area median of the dressing so that they can be easily detached from it at the time of use.

[0023] The non-adhesive plate of the dressing protection kit according to the invention thus replaces the protective film composed of two tabs found in known prior art dressing protection packaging. The non-adhesive plate has the advantages of using much less material (and thus generating less waste) and therefore being lighter.

[0024] Therefore, a dressing protection kit according to the invention comprising: - a dressing is much lighter than a storage envelope containing a single dressing and its protective film; - a plurality of dressings is much lighter than a blister pack containing several storage envelopes, each containing a dressing and its protective film, as described above.

[0025] By way of example, a dressing protection kit according to the invention comprising 4 dressings is 33% lighter than a strip of dressings grouping 4 storage envelopes each containing a dressing and its protective film as known from the prior art.

[0026] Furthermore, because the non-adhesive plate eliminates the need for the protective film, with the dressing protection kit according to the invention, the problems related to the excess thickness of the tabs, which, it should be remembered, cause an increase in the volume of the storage envelope and instability when stacking several storage envelopes on top of each other, are no longer present.

[0027] Furthermore, with the configuration of the dressing protection kit according to the invention, the problems related to the domed shape of the storage envelopes which were mentioned above (namely increase in the volume of the storage envelopes and instability of their stacking) no longer arise.

[0028] Furthermore, the dressing protection kit according to the invention is very easy to handle. When using a dressing, the user simply has to detach (in other words, peel off) the dressing from the non-adhesive backing. The handling time required to peel off a dressing is very short, which allows for rapid wound treatment.

[0029] Finally, unlike prior art dressing packaging, the dressing protection kit according to the invention has the advantage of being able to be stacked stably and reliably; this facilitates the transfer of stacks of dressing protection kits according to the invention to the final packaging line, as well as their storage in packaging (for example, cardboard or plastic boxes). Indeed, when stacking dressing protection kits according to the invention, the non-stick plate comes into contact with the face of the support opposite the face of the support including the adhesive area. During this contact, there is an increase in friction energy between the anti-adhesive plate and the dressing support, allowing the stacks of dressing protection kits not to slip during their transfer to the final packaging line and then their storage in packaging.

[0030] The material of the anti-adhesive plate is chosen appropriately so that the first face of said anti-adhesive plate is non-adherent to the adhesive area of ​​the dressing support.

[0031] The choice of material for the non-stick plate is perfectly within the reach of a person skilled in the art.

[0032] The material of the non-stick plate can be a material commonly used to manufacture the protective film composed of two tabs mentioned above. The material of the non-stick plate can therefore be chosen from the following materials: - a polyester film such as polyethylene terephthalate; - a polyolefin film such as polyethylene or polypropylene; - a metal sheet; - paper or coated paper.

[0033] The material of the non-stick plate can, for example, be a polyethylene film which is smooth or even embossed and / or debossed.

[0034] In the context of the present invention, "coated paper" means paper one side of which is covered with one or more layers, which may comprise compounds selected from mineral components (for example, pigments), binders, polyolefins, and various other additives. Coated paper is well known to those skilled in the art. For example, it may be paper one side of which is coated with polyethylene, which is called "polyethylene-coated paper."

[0035] In the case where the material of the non-stick plate is a coated paper, the face of the coated paper covered with one or more layers of compounds constitutes the first face of the non-stick plate.

[0036] In embodiments of the invention, the surface of the non-stick plate can be covered with a layer of a non-stick material.

[0037] The non-adherent material can be appropriately chosen to facilitate the detachment of the dressing from the non-adherent plate.

[0038] The non-stick material can be chosen from silicone, fluorosilicone, a polyolefin (for example polypropylene or polyethylene or other equivalent polyolefin).

[0039] By way of non-limiting examples of the present invention: - when the material of the non-stick plate is a polyester film (for example polyethylene terephthalate), the non-stick material can be a silicone or a fluorosilicone; - when the material of the non-stick plate is paper, the non-stick material can be silicone, fluorosilicone or polyolefin (e.g. polypropylene or polyethylene or other equivalent polyolefin); - when the material of the non-stick plate is coated paper, the non-stick material can be silicone.

[0040] The choice of the non-stick material is perfectly within the reach of a person skilled in the art.

[0041] In embodiments of the invention, the 2nd face of the non-stick plate can be covered with a layer of anti-slip material.

[0042] The anti-slip material can be appropriately selected to facilitate the reliable and stable stacking of dressing protection kits according to the invention. This means that the anti-slip material can be appropriately selected to increase the friction energy between the anti-adhesive plate and the dressing backing, preventing the stacks of dressing protection kits from slipping during transfer to the final packaging line and subsequent storage in packaging. In other words, the anti-slip material can be appropriately selected to increase the coefficient of static friction between the second face of the anti-adhesive plate and the face of the dressing backing opposite the face of the backing with the adhesive area. The coefficient of static friction is defined below.

[0043] The anti-slip material can be chosen from silicone, polyethylene, polyurethane or acrylic.

[0044] The choice of the anti-slip material is perfectly within the reach of a person skilled in the art.

[0045] It should be noted that silicone can be both a non-stick and a non-slip material. Therefore, in embodiments of the invention, the non-stick plate can be coated on each of its two faces with a layer of silicone.

[0046] In summary, in embodiments of the invention, the non-stick plate can be covered on its first face with a non-stick material (for example, a non-stick material as described above) and / or on its second face with a non-slip material (for example, a non-slip material as described above).

[0047] The non-stick plate may have a Young's modulus, measured according to ISO 527, greater than 1 GPa, preferably greater than 2 GPa, for example 3 GPa.

[0048] The thickness of the non-stick plate can be between 30 µm and 300 µm. In one embodiment of the invention, this thickness is 50 µm.

[0049] The surface mass of the non-stick plate can be between 25 g / m2 and 300 g / m2. Preferably, it is 50 g / m2.

[0050] The surface area of ​​the non-stick plate can be between 10 cm2 and 1500 cm2, preferably between 50 cm2 and 500 cm2.

[0051] The surface of the non-stick plate can have any geometric shape, for example square or rectangular.

[0052] Preferably, the surface of the non-stick plate is rectangular. In this embodiment of the invention, the width of the non-stick plate can be between 2 cm and 40 cm, preferably between 5 cm and 25 cm, and the length of the non-stick plate can be between 5 cm and 50 cm, preferably between 10 cm and 25 cm.

[0053] The second side of the non-adhesive plate may have at least one area bearing inscriptions (i.e., printed characters and / or drawings / diagrams), for example, information, more specifically regulatory information relating to the dressing (in particular, instructions for use of the dressing). This may be the regulatory information as detailed above.

[0054] More specifically, the inscriptions may be present on the material of the 2nd non-stick side and / or on the anti-slip material if the 2nd side of the non-stick plate is covered with a layer of anti-slip material.

[0055] During the manufacture of the dressing protection kit according to the invention, the following markings may be printed: - on the second side of the non-stick plate, optionally said second side of the non-stick plate can then be covered with a layer of anti-slip material and / or - on the anti-slip material layer if the 2nd side of the non-stick plate has been covered with an anti-slip material layer.

[0056] The choices of the material of the non-stick plate, the optional layer of anti-slip material, the printing technique and the printing ink are perfectly within the reach of a person skilled in the art so that the 2nd side of the non-stick plate can bear inscriptions, whether or not it is covered with a layer of anti-slip material.

[0057] Thus, the dressing protection kit according to the invention has the advantage that the non-adhesive plate has a suitable surface for displaying all the necessary regulatory information that must appear on the packaging of medical devices such as dressings. Furthermore, the non-adhesive plate remains intact as the various dressings are removed. fixed on it. Thus, unlike some state-of-the-art bandage packaging where the markings (e.g. regulatory information) can be destroyed after use of several bandages due to partial destruction of the packaging on which said markings appeared, with the bandage protection kit according to the invention, there is no loss of these markings as the bandages are used, since these markings can be present on the 2nd side of the anti-adhesive plate which remains intact.

[0058] The surface area of ​​the dressing can be between 1 cm2 and 400 cm2, preferably between 4 cm2 and 100 cm2.

[0059] As explained above, a plurality of dressings can be attached in a detachable manner to the non-adhesive plate, said dressings being able to be identical or different from each other.

[0060] When the dressing protection kit according to the invention includes a plurality of dressings, said dressings may have identical or different surfaces and shapes.

[0061] When the surfaces of the dressings are different from each other, this has the advantage that the dressing protection kit according to the invention includes dressings of different sizes which can perfectly adapt to different sizes of wounds.

[0062] The dressing can have any geometric shape. For example, the dressing can be rectangular, square, round or oval.

[0063] Preferably, the dressing is rectangular in shape. It may, for example, have: - a width between 1 cm and 20 cm, preferably between 1.5 cm and 10 cm, - a length between 1 cm and 30 cm, preferably between 2 cm and 20 cm, preferably between 3 cm and 15 cm.

[0064] In one embodiment of the invention, the dressing has a rectangular shape with a width of 2 cm and a length of 7.2 cm.

[0065] The dressing includes a support.

[0066] The support has a face which includes at least one adhesive area configured to fix the dressing to an anatomical part (for example the skin or a nail), preferably at the periphery of a wound.

[0067] The support material can be chosen from: - a polyurethane film; - a non-woven or woven film whose fibers or yarns are synthetic (for example, polyester, polyamide, elastane or polypropylene fibers or yarns) or natural (for example, cellulose, bamboo, cotton or hemp fibers or yarns); - a polyolefin film such as polyethylene or polypropylene, optionally perforated to allow the skin to breathe.

[0068] In a preferred embodiment of the invention, the static friction coefficient, determined according to ISO 8295, between the material of the second face of the non-stick plate and the material of the face of the substrate opposite the face of the substrate having the adhesive area may be greater than or equal to 0.1, preferably greater than or equal to 0.2, more preferably greater than or equal to 0.4. In an advantageous embodiment of the invention, said static friction coefficient may be between 0.1 and 5.

[0069] In the context of the present invention, the term "static friction coefficient between the material of the 2nd face of the non-stick plate and the material of the face of the support opposite to the face of the support having the adhesive area" means the force required to slide the face of the support opposite to the face of the support having the adhesive area on the 2nd face of the non-stick plate with a fixed speed and under a given load.

[0070] In this preferred embodiment of the invention, the choice of materials for the second face of the anti-adhesive plate (namely, the material of the anti-adhesive plate when the second face of said anti-adhesive plate is not covered with a layer of anti-slip material, or the anti-slip material when the second face of said anti-adhesive plate is covered with a layer of anti-slip material) and of the face of the support opposite to the face of the support having the adhesive area, such that the coefficient of static friction is greater than or equal to 0.1, allows, when stacking dressing protection kits according to the invention (therefore, in particular, when the anti-adhesive plate is brought into contact with the face of the support opposite to the face of the support having the adhesive area), an increase in the friction energy such that this stacking is stable and reliable and remains so.and this even during its transfer to the final packaging line, and then during its storage in packaging.

[0071] In an advantageous embodiment of the invention, the material of the non-adhesive backing is a paper coated on both sides with a layer of silicone, and the material of the side of the backing opposite the side of the backing containing the adhesive area is a polyurethane film, a polyethylene film, or a non-woven film whose fibers or yarns are made of polyester. In this embodiment of the invention, the dressing protection kits according to the invention can be reliably and stably stacked. There is no risk of the stacks of these protection kits slipping, particularly during their transfer to the final packaging line and then during their storage in packaging.

[0072] In light of the above explanation, markings may have been printed on the second side of the non-stick plate before it was coated on both sides with a layer of silicone. The non-stick plate thus bears markings on its second side.

[0073] In this advantageous embodiment of the invention in which both sides of the paper are covered with a layer of silicone and the material of the side of the support opposite the side of the support having the adhesive area is a polyurethane film, a polyethylene film or a non-woven film whose fibers or yarns are made of polyester, the coefficient of static friction between the 2nd side of the non-stick plate and the side of the support opposite the side of the support having the adhesive area is greater than 0.1.

[0074] Most advantageously, the material of the non-stick plate is a paper coated on both sides with a layer of silicone and the material of the face of the support opposite to the face of the support having the adhesive area is a polyurethane film.

[0075] The adhesive area material is an adhesive material suitable for use on the body. It is advantageously hypoallergenic.

[0076] The adhesive area has high adhesion to the anatomical part (for example the skin or a nail) to which the dressing is attached.

[0077] The adhesive zone material may be a pressure-sensitive adhesive. More specifically, the adhesive zone material may be a pressure-sensitive adhesive based on acrylic, polyurethane, silicone, natural rubber, ethylene-vinyl acetate copolymer, or poly(styrene-isoprene-styrene) block copolymers.

[0078] Examples of pressure-sensitive adhesives are described in patents EP 0 035 399 Bl, EP 0 051 935 Bl, US 3,389,827, US 4,112,213, US 4,310,509, US 4,323,557 and US 4,737,410.

[0079] The adhesive zone material may be a layer of an acrylic-based pressure-sensitive adhesive marketed by ASHLAND under the trade names AROSET 1920-Z-52 or AROSET 1910-TH-52.

[0080] The adhesive area material may also be a layer of a rubber-based pressure-sensitive adhesive marketed by HB FULLER under the trade name SwiftCol 9063.

[0081] In other embodiments of the invention, the material of the adhesive zone can be a gel chosen from silicone gel, polyurethane gel and hydrogels.

[0082] The adhesive zone material may comprise silicone gel, which provides excellent adhesion properties of the dressing to the skin. The silicone gel is a cross-linked silicone compound. It provides high adhesion to the skin and low release force upon detachment. Preferably, the adhesive strength of the silicone gel is between 0.5 N / cm and 2 N / cm. The silicone gel exhibits such cohesion that it leaves no residue on the skin upon removal of the dressing. An example of silicone gel is described in US patent 4,991,574. For example, the silicone gel is selected from the following products: - WACKER, whose products are called SILPURAN, series 2110 and 2120, - ELKEM, whose products are called SILBIONE 4717 series, - the company NUSIL which are called CEREPLAST MED 634.

[0083] The thickness of the adhesive zone can be between 5 pm and 500 pm, preferably between 10 pm and 250 pm.

[0084] The surface mass of the adhesive area can be between 5 g / m² and 500 g / m², preferably between 10 g / m² and 300 g / m². Acrylic-based pressure-sensitive adhesives have lower surface masses (i.e., less than 50 g / m²) than silicone gels, which are greater than 100 g / m².

[0085] The dressing includes a compress which is preferably made of at least one absorbent material.

[0086] The absorbent material can be chosen from: - polyurethane foams, and more preferably aliphatic polyurethane foams, - non-woven fabrics such as viscose non-woven fabrics or non-woven fabrics made from a blend of polyester and viscose (for example, a blend comprising 70% to 80% viscose and 20% to 30% polyester by weight) or non-woven fabrics containing cellulose, - cotton materials, - cellulose materials.

[0087] The choice of absorbent material is perfectly within the reach of a person skilled in the art.

[0088] Aliphatic polyurethane foam has the advantage of being a flexible, open-cell absorbent foam that provides an excellent retention level of approximately 65%. It also has an absorption capacity of more than 15 times its weight. Its thickness can vary from 1.5 to 5 mm. Furthermore, it has the advantage of being resistant to beta and gamma ray irradiation. This is particularly suitable when the absorbent material needs to be sterilizable.

[0089] The absorbent material may further comprise at least one compound selected from among the antimicrobial agents. This has the advantage of promoting wound healing.

[0090] The thickness of the absorbent material can be between 0.5 mm and 10 mm, preferably between 1.5 mm and 5 mm.

[0091] Preferably, the compress is fixed to the center of the dressing support.

[0092] The surface area of ​​the compress can be between 0.25 cm2 and 400 cm2, from Preference between 1 cm2 and 100 cm2.

[0093] The compress can have all sorts of different shapes. It can be square, rectangular, round, or oval. For example, the compress can be square with sides ranging from 5 mm to 200 mm, preferably from 10 mm to 100 mm. In one embodiment of the invention, the side of the square measures 20 mm. For example, the compress can be rectangular with a width ranging from 5 mm to 150 mm, preferably from 10 mm to 100 mm, and a length ranging from 10 mm to 200 mm, preferably from 20 mm to 150 mm. In one embodiment of the invention, the width measures 12 mm and the length measures 22 mm.

[0094] Preferably, at least one dressing in the dressing protection kit according to the invention is a first aid dressing. This is a dressing commonly used in everyday life so that anyone (i.e., not necessarily a medical professional) can (quickly) treat a minor wound. These first aid dressings are therefore dressings for the general public and not reserved for medical personnel.

[0095] The invention also relates to a stacking of at least two dressing protection kits according to the invention as described above.

[0096] Unlike known prior art dressing packaging, particularly packaging with domed storage envelopes as mentioned above, due to the configuration of the dressing protection kit, the stacking of dressing protection kits according to the invention offers the advantage of being perfectly reliable and stable. This facilitates the transfer of stacks of dressing protection kits according to the invention to the final packaging line, as well as their storage in packaging (e.g., cardboard or plastic boxes).

[0097] The invention also relates to a dressing storage kit comprising packaging, characterized in that said storage kit further comprises at least one dressing protection kit according to the invention as described above. The dressing protection kit according to the invention is packaged (in other words, stored) in the packaging.

[0098] The dressing storage kit may comprise a plurality of dressing protection kits according to the invention, for example between 2 and 30. For example, said kit of Dressing storage may include 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25 or 30 dressing protection kits according to the invention.

[0099] The packaging can be any type of packaging suitable for storing at least one dressing protection kit according to the invention. It can be any packaging commonly used for storing dressings. The choice of packaging is perfectly within the capabilities of a person skilled in the art.

[0100] The packaging may have dimensions suitable for storing one or more dressing protection kits according to the invention.

[0101] By way of non-limiting examples of the present invention, the packaging may be selected from: - a box (for example a cardboard, plastic, or metal box); - an envelope (for example a paper envelope, a plastic envelope, in particular an envelope in the form of a plastic film, or a cardboard envelope); - a paper or plastic bag.

[0102] Preferably, the packaging is made of paper or cardboard. This has the advantage that it is easily recyclable.

[0103] If it is a bag or an envelope, said bag or envelope may have a means of closure (for example a zip closure).

[0104] The dressing storage kit according to the invention has the following advantages: - it generates less waste, because, as explained above, the dressing protection kit according to the invention generates less waste; - it is easy to use and accessible to all: simply extract a dressing protection kit according to the invention from the packaging and then, as explained above, detach a dressing from the non-adhesive plate and apply it to the wound; - the handling time is reduced compared to that of the known state-of-the-art dressing packaging mentioned above and, as a result, wound care is faster; - It allows for the storage of dressings of different sizes.

[0105] The invention will be better understood with the aid of the detailed description set forth below with reference to the attached drawing representing, by way of non-limiting example, an embodiment of a dressing protection kit according to the invention.

[0106] [Fig-1] Fig. 1 is a schematic top view of a protective kit dressing according to the invention.

[0107] [Fig.2]. Fig.2 is a schematic view of the underside of said dressing protection kit according to the invention.

[0108] Figure 1 represents a protective dressing kit 1 according to the invention, which comprises: - 4 dressings, all identical to each other; - a non-stick plate 3 which has a first side 3a and a second side 3b.

[0109] The non-stick plate 3 has a rectangular shape with a width of 6.5 cm and a length of 8.9 cm. It has a thickness of 50 µm. The material of the adhesive plate 3 is a paper coated on one of its faces 3a, 3b with a layer of silicone. The face of the non-stick plate 3 that has the silicone layer is said to be face 3a.

[0110] The dressings 4 have a general rectangular shape with slightly rounded edges. Their length is 7.2 cm and their width is 2.0 cm.

[0111] The dressings 4 are arranged in a detachable manner on the first face 3a of the anti-adhesive plate 3. More specifically, the dressings 4 each comprise a polyurethane support 2, said support 2 having a face (not visible in the figures) which includes an adhesive area (not visible in the figures) which is in contact with the first face 3a of the anti-adhesive plate 3.

[0112] The dressings 4 each comprise a pad 5 (represented in dotted lines on [Fig.1]) arranged centrally on the face of the support 2 which includes the adhesive area.

[0113] When using a dressing 4, the user simply has to detach the face of the support 2 comprising the adhesive area of ​​one of the dressings 4 from the first face 3a of the anti-adhesive plate 3 and then apply it directly to a wound.

[0114] As can be seen in [Fig.2], the 2nd face 3b of the anti-adhesive plate 3 has a printable area 6 which includes inscriptions 7 detailing regulatory information about dressings 4.

[0115] EXPERIMENTAL SECTION

[0116] Experiments were carried out to determine which pairs of materials of the 2nd face of the anti-adhesive plate and of the support face opposite the support face containing the adhesive area of ​​the dressing were most suitable for obtaining dressing protection kits according to the invention which can be stacked stably and reliably in order to allow easy transfer and storage in packages, without logistical difficulty.

[0117] First, in a preliminary test, static friction coefficient measurements were performed on pairs of materials. More specifically, this involved a paper coated on both sides with a layer of silicone and having a surface mass of 64 g / m² (namely, an example of the material used in the non-stick sheet as described above) combined with one of the following materials on the side of the substrate opposite the side of the substrate containing the adhesive area: - material a): transparent polyethylene film with a surface mass of 65 g / m2; - material b): transparent polyethylene film with a surface mass of 65 g / m2 and perforated; - material c): flesh-colored polypropylene film with a surface mass of 65 g / m2 and perforated; - material d): polyurethane film 20 µm thick; - material e): polyurethane film 25 µm thick; - material f): non-woven film whose fibers are made of polyester and with a surface mass of 50 g / m2; - material g): non-woven film whose fibers are made of polyester and with a surface mass of 45 g / m2.

[0118] The static friction coefficient was determined according to ISO 8295. Each of the materials a) to g) was glued under a square pad of 40 cm2 and of mass of 0.2 kg which was pulled at a speed of 100 mm / minute while in contact with one of the two layers of silicone with which the paper, whose surface mass was 64 g / m2, was coated.

[0119] The static friction coefficient (Ks) was calculated by measuring the maximum force at the start of the traction of the skate (Fs) according to the following mathematical equation (1):

[0120] [Math. 1]

[0121] Ks=Fs / Fp (1)

[0122] in which Fp is equal to 1.962 N (namely the force exerted by the mass of the skate).

[0123] Table 1 below details the static friction coefficients obtained for each of the materials a) to g) combined with the paper covered on each of its two sides with a layer of silicone and whose surface mass was 64 g / m2.

[0124] In addition, in order to best simulate the automated transport of a stack of dressing protection kits according to the invention before their introduction into packaging, a 2nd test was carried out as follows.

[0125] Two dressing protection kits according to the invention, each comprising: - a rectangular anti-adhesive plate (90 mm x 88 mm) made of paper covered on each of its faces with a layer of silicone and whose surface mass was 64 g / m2; - 4 rectangular dressings (73 mm x 19 mm) whose support was made of one of the materials a) to g) listed above and which each included a rectangular pad (23 mm x 13 mm) of non-woven material with a thickness of 1 mm and which was positioned centrally, were superimposed one on top of the other.

[0126] The dressing protection kit on top of the stack was the upper dressing protection kit and the one on the bottom of the stack was the lower dressing protection kit.

[0127] The stack formed from the 2 dressing protection kits according to the invention was moved over a distance of 50 cm in 2 seconds with a sharp braking on arrival.

[0128] If a slippage of 5 mm or more was observed between the upper dressing protection kit and the lower dressing protection kit, the test was considered non-compliant. This is because such a gap between the two dressing protection kits prevents the battery from being placed in packaging such as a bag. Conversely, if a slippage of less than 5 mm was observed, the test was considered compliant.

[0129] Table 1 below details the result of this 2nd test for each of the materials a) to g) of the face of the support opposite to the face of the support containing the adhesive area.

[0130] [Tables 1] Static friction coefficient Sliding test result Material a) 0.21 Compliant material b) 0.14 Compliant material c) 0.08 Non-compliant material d) 2.22 Compliant material e) 0.45 Compliant material f) 0.44 Compliant material g) 0.48 Compliant

[0131] Furthermore, in order to obtain comparative data with state-of-the-art dressing packaging mentioned above, the static friction coefficients: - between two sheets of a cold sealing paper with a surface mass of 60 g / m2, - between two sheets of a hot sealing paper with a surface mass of 60 g / m2, were determined.

[0132] Indeed, these two paper materials are materials classically used for the manufacture of the storage envelopes for the dressings mentioned above and the determination of their static friction coefficients made it possible to estimate the friction which exists when such storage envelopes are stacked on top of each other.

[0133] The values ​​of the static friction coefficients were respectively 0.38 and 0.31, that is to say, values ​​entirely comparable to those obtained with the tested materials of the dressing protection kits according to the invention.

[0134] Furthermore, the second test was carried out with two strips of dressings (dimensions: 180 mm x 90 mm). More specifically, each strip of dressings comprised four storage pouches, each containing a dressing measuring 73 mm x 19 mm with a rectangular (23 mm x 13 mm) non-woven pad, 1 mm thick, positioned centrally. The dimensions of the dressing and the characteristics of the pad were therefore identical to those of the dressings in the protective kits according to the invention tested above. In addition, each of these dressings included a protective film as described above in the prior art statement. The storage pouches were connected to each other by means of pre-perforations extending along the longitudinal direction of the dressings. Each storage pouch consisted of two identical sheets of paper sandwiching the dressing and its protective film.

[0135] In other words, these dressing strips corresponded to prior art dressing strips mentioned in the introduction to the description of the present invention. As explained above, the storage envelopes therefore had a domed shape (namely at the level of the 2nd protective zone described above).

[0136] The materials of the storage envelopes tested were therefore the two types of paper material mentioned above, namely cold sealing paper with a surface mass of 60 g / m2 and hot sealing paper with a surface mass of 60 g / m2.

[0137] While the static friction coefficient was acceptable for these two types of paper material, being greater than 0.1, the result of the second test proved non-compliant for these dressing packs whose storage envelopes were made from these two paper materials. This can be explained by the fact that said storage envelopes had a convex shape.

[0138] This 2nd test confirms that the stacking of dressing strips, each consisting of 4 storage envelopes containing dressings individually and which are connected to each other by means of pre-perforations, as is known from the state of the art, proves to be unreliable and unstable.

[0139] In view of the results detailed in Table 1 and these comparative data concerning state-of-the-art dressing pads, it is noted that in a dressing protection kit according to the invention, the combination of a paper coated on both sides with a layer of silicone for the material of the non-adhesive pad and a polyurethane film, a polyethylene film or a non-woven film whose fibers are polyester for the material of the backing side opposite the side of the support with adhesive area is particularly suitable for reliably and stably stacking a set of these dressing protection kits for transfer and storage in packaging (e.g. a box, envelope or bag), unlike the state-of-the-art dressing packaging storage envelopes mentioned above.

Claims

Demands

1. Dressing protection kit (1) for dressing (4) comprising at least one dressing (4), said dressing (4) comprising: - a support (2) having a face which includes at least one adhesive area configured to fix the dressing (4) to an anatomical part; - a pad (5) fixed to the face of the support (2) having the adhesive area; characterized in that the dressing protection kit (1) for dressing (4) further comprises an anti-adhesive plate (3) having a first face (3a) and a second face (3b), the at least one dressing (4) being fixed in a detachable manner at the level of said adhesive area of ​​said support (2) on said first face (3a) of the anti-adhesive plate (3).

2. Dressing protection kit (1) according to claim 1, characterized in that it comprises a plurality of dressings (4).

3. Dressing protection kit (1) according to claim 1 or 2, characterized in that the material of the anti-adhesive plate (3) is selected from the following materials: - a polyester film such as polyethylene terephthalate; - a polyolefin film such as polyethylene or polypropylene; - a metallic foil; - a paper or coated paper.

4. Dressing protection kit (1) according to any one of claims 1 to 3, characterized in that the anti-adhesive plate (3) is covered on its first face (3a) with an anti-adhesive material and / or on its second face (3b) with an anti-slip material.

5. Dressing protection kit (1) according to any one of claims 1 to 3, characterized in that the thickness of the anti-adhesive plate (3) is between 30 pm and 300 pm.

6. Dressing protection kit (1) according to any one of claims 1 to 5, characterized in that the anti-adhesive plate (3) has a Young's modulus, measured according to ISO 527, greater than 1 GPa, preferably greater than 2 GPa.

7. Protective kit (1) for dressing (4) according to any one of claims 1 to 6, characterized in that the 2nd face (3b) of the non-stick plate (3) has at least one area (6) with inscriptions (7).

8. Dressing protection kit (1) according to any one of claims 1 to 7, characterized in that the material of the support (2) is selected from: - a polyurethane film; - a non-woven or woven film whose fibers or yarns are synthetic or natural; - a polyolefin film such as polyethylene or polypropylene, optionally perforated.

9. Protective kit (1) for dressing (4) according to any one of claims 1 to 8, characterized in that the material of the adhesive area is a pressure-sensitive adhesive based on acrylic, polyurethane, silicone, natural rubber, ethylene vinyl acetate copolymer or poly(styrene-isoprene-styrene) type block copolymers.

10. Dressing protection kit (1) according to any one of claims 1 to 9, characterized in that the static friction coefficient, determined according to ISO 8295, between the material of the 2nd face (3b) of the anti-adhesive plate (3) and the material of the face of the support (2) opposite to the face of the support (2) comprising the adhesive area is greater than or equal to 0.1, preferably greater than or equal to 0.2, more preferably greater than or equal to 0.

4.

11. Dressing protection kit (1) according to claim 10, characterized in that the material of the anti-adhesive plate (3) is a paper covered on both sides (3a, 3b) with a layer of silicone and the material of the face of the support (2) opposite to the face of the support (2) having the adhesive area is a polyurethane film, a polyethylene film or a non-woven film whose fibers or threads are made of polyester.

12. Stacking of at least two protective dressing kits (1) according to any one of claims 1 to 11.

13. Dressing storage kit (4) comprising packaging, characterized in that it further comprises at least one dressing protection kit (1) according to any one of claims 1 to 11.

14. Dressing storage kit (4) according to claim 13, characterized in that the packaging is selected from a cardboard, plastic or metal box, a paper, plastic or cardboard envelope or a paper or plastic bag.

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