Retractor device for lips and cheeks

Abstract

The invention relates to a device for retracting the lips, cheeks and corners of the mouth away from the rows of teeth in the mouth of a patient, comprising an elastic lip clamping element, at least one elastic vestibular clamping element and a connecting portion connecting the clamping elements, wherein the connecting portion offers substantially no resistance to bending, in particular as opposed to stretching, wherein the lip clamping element, the vestibular clamping element and the connecting portion form a strip-like main body of the retractor device, wherein the strip-like main part has a first and a second end portion in a longitudinal direction, wherein the two end portions can be connected to one another and / or wherein the lip clamping element and / or the vestibular clamping element are in the form of a non-closed spring frame.

Description

[0001] Retainer for lips and cheeks

[0002] DESCRIPTION

[0003] The invention relates to a device for keeping the lips, cheeks and corners of the mouth away from the rows of teeth in the mouth of a patient.

[0004] Devices for retracting the lips, cheeks, and corners of the mouth from the teeth in a patient's mouth are known as cheek retractors, retractors, or mouth gags. Furthermore, WO 03 / 051185 Al, DE 10 2019 203 954 Al, and DE 10 2019 203 970 Al describe a device that not only retracts the lips, cheeks, and corners of the mouth from the teeth but also simultaneously covers them. Such devices are marketed, for example, under the brand name OptraGate® and feature two flexible rings as tension frames connected by a cover sheet. One of the two tension frames is inserted completely into the oral vestibule to fix the cover sheet intraorally.

[0005] Such devices, based on prior art, are expensive and complex to manufacture, for example using injection molding, due to the three-dimensionality of the rings. Furthermore, different materials are used for the sealing compound and the rings, which further increases production costs. In addition, the rings are not variable in size; different sized rings must be manufactured for different device sizes, which also increases production costs. For cost reasons, there are only a few standard sizes without intermediate sizes. Moreover, the devices cannot be packaged and stored in a space-saving manner.

[0006] The technical problem underlying the present invention is the provision of an improved device of the generic type, in particular a device of the generic type in which pressure sores on the mucosa of the alveolar bone are prevented at least as effectively or at least significantly reduced compared to the prior art, thus offering good wearing comfort, but which are significantly cheaper to manufacture and store and can also preferably overcome the further disadvantages of the prior art. The present invention solves the underlying technical problem by a device according to claim 1.

[0007] The present invention solves the underlying technical problem by means of a retraction device for keeping the lips, cheeks and corners of the mouth away from the rows of teeth in the mouth of a patient, comprising a lip clamping element, at least one vestibular clamping element and a connecting area connecting the clamping elements, wherein the connecting area preferably offers essentially no resistance to bending, particularly in contrast to stretching, wherein the lip clamping element, the vestibular clamping element and the connecting area form a band-shaped base body of the retraction device, wherein the band-shaped base body has a first and a second end region in the longitudinal direction, wherein the two end regions are connectable to each other and / or wherein the lip clamping element and / or the vestibular clamping element are designed as an open spring frame.

[0008] Surprisingly, it was found that this method allows for the provision of a retractor that is ribbon-shaped in its basic state, or at least whose clamping elements are not closed into a ring. This advantageously enables significantly more cost-effective production, particularly when manufactured by injection molding, since structurally simpler and therefore less expensive shapes can be used in the production of the retractor. Furthermore, such an open basic shape allows for space-saving packaging and storage. Due to the open design, the retractors according to the invention do not necessarily have a predetermined, non-adjustable ring size for the clamping frames, so that the size of the retractor can be easily adapted to the size of the patient's mouth if required.Furthermore, the open design of the retractor according to the invention allows for easy and painless insertion into the patient's mouth, as the radius of the vestibular clamping element can be reduced during insertion. Surprisingly, despite the open design of the basic shape of the retractor, it proved to be comfortable for the patient and easy for the dentist to use. A further advantage was that the clamping elements in the pressure-sensitive anterior region are not necessarily positioned at the lowest point in the vestibule, but can extend along various paths to the vermilion border of the lip and even onto the vermilion border itself, thus ensuring particularly effective vertical retraction of the lip. When the retractor is applied, pressure forces are distributed over a large area from the connection point and built up circularly around the mouth opening.This allows the patient's mouth to be comfortably kept wide open in a circular motion, while at the same time gently keeping the lips and cheeks away from the teeth.

[0009] The connection area preferably offers essentially no resistance to bending, especially as opposed to stretching. The connection area is therefore preferably more easily bent than stretched. However, it can also be stretchable to a certain extent.

[0010] In a preferred embodiment, the connection area has one connecting element or at least two connecting elements, in particular a plurality of connecting elements, which connect the lip clamping element and the vestibular clamping element together, characterized in that one connecting element has gaps or that a gap is present between the at least two connecting elements, in particular a plurality of connecting elements.

[0011] It was found that in everyday dental practice, when retracting the lips, cheeks, and corners of the mouth from the teeth in a patient's mouth, an additional lip covering is often unnecessary. This allows the use of connecting elements made of the same material as the clamping elements, instead of a covering membrane made of a different material. This enables the retractor to be manufactured from a single material, for example, using injection molding or 3D printing, which further reduces production costs.

[0012] In a preferred embodiment, the at least two connecting elements are strut-shaped, rib-shaped, rod-shaped, post-shaped, pillar-shaped, beam-shaped, or plate-shaped. In a preferred embodiment, the at least two connecting elements are rib-shaped or rod-shaped, i.e., designed as a rib or rod.

[0013] In a preferred embodiment, the at least two connecting elements are rod-shaped, i.e., designed as a rod.

[0014] It can therefore be provided that at least two connecting elements, in particular a plurality of connecting elements in the form of rods or ribs, run between the lip clamping element and the vestibular clamping element and connect these two. Preferably, the connecting elements designed as rods or ribs are distributed over the length of the lip clamping element and the vestibular clamping element.

[0015] There are preferably gaps between adjacent connecting elements.

[0016] The width and thickness of the individual bars or ribs, as well as their spacing, can be selected so that they connect the two clamping elements firmly enough, but the connection area remains flexible. For example, the connecting elements can have a width and / or thickness of 0.05 cm to 0.5 cm.

[0017] The connecting elements, particularly those designed as rods or ribs, preferably have a diameter of at least 0.05 mm, more preferably at least 0.1 mm, and more preferably at least 0.2 mm. The connecting elements, particularly those designed as rods or ribs, preferably have a diameter of at most 3 mm, more preferably at most 2 mm, and more preferably at most 1.5 mm. Particularly preferred diameters are approximately 0.9 mm, approximately 0.6 mm, approximately 0.5 mm, or approximately 0.3 mm.

[0018] Preferably, the connecting elements, especially those designed as rods or ribs, have an elliptical or oval cross-section. They thus have a largest and a smallest diameter, with the largest diameter preferably being between 1.5 mm and 0.3 mm, more preferably between 1 mm and 0.55 mm, and the smallest diameter between 0.8 mm and 0.1 mm, more preferably between 0.5 mm and 0.2 mm. Preferably, the largest diameter is approximately 0.9 mm and the smallest diameter approximately 0.5 mm, or the largest diameter is approximately 0.6 mm and the smallest diameter approximately 0.3 mm.

[0019] Preferably, the connecting elements, in particular those designed as rods or ribs, have a length of at least 15 mm, more preferably at least 20 mm, and most preferably at least 25 mm. Preferably, the connecting elements, in particular those designed as rods or ribs, have a length of at most 60 mm, more preferably at most 50 mm, and most preferably at most 40 mm. Preferably, the lengths of the connecting elements, in particular those designed as rods or ribs, are between 20 mm and 40 mm, in particular between approximately 25 mm and approximately 37 mm, for example between 26 mm and 36 mm.

[0020] The connecting elements, in particular rod-shaped or rib-shaped connecting elements, can preferably be linear, but they can also be serpentine or curved.

[0021] It was found that rod-shaped or rib-shaped connecting elements between the lip tensioning element and the vestibular tensioning element provide a sufficiently strong connection, especially when made of the same material and when the retractor is manufactured in one piece. At the same time, the rod-shaped or rib-shaped connecting elements can be bent sufficiently to encompass the patient's lips when the retractor is inserted into the mouth. It was found that this design offers a high level of patient comfort.

[0022] Particularly preferred is a retraction device for keeping the lips, cheeks, and corners of the mouth away from the teeth in the mouth of a patient, comprising a preferably elastic lip clamping element, at least one preferably elastic vestibular clamping element, and a connecting area linking the clamping elements, wherein the connecting area preferably offers essentially no resistance to bending, particularly in contrast to stretching, wherein the lip clamping element, the vestibular clamping element, and the connecting area form a band-shaped base body of the retraction device, wherein the band-shaped base body has a first and a second end region in the longitudinal direction, wherein the two end regions are connectable to each other, wherein the connecting area is formed from a plurality of rod-shaped or rib-shaped connecting elements, wherein the retraction device preferably consists of a single material and is one-piece.The end regions of the vestibular clamping element are preferably designed as a connecting component, wherein the connecting component preferably comprises a rod-shaped first connecting part component and a sleeve-shaped second connecting part component. A hole for gripping the retaining device is preferably provided in the connecting region. The ends of the lip clamping element are preferably curved towards the vestibular clamping element. The connecting region is preferably reinforced at least partially at the end regions, particularly in the area where the lip clamping element is curved towards the vestibular clamping element. An embodiment as shown in Figure 12 is preferred. In an alternative embodiment, one of the connecting elements is a lattice structure or a mesh structure. The mesh structure can be formed from a plurality of rod-shaped or rib-shaped connecting elements that intersect, particularly diagonally.for example in the form of a picket fence.

[0023] A mesh or grid structure is preferably suitable for the connecting element, in which folding is enabled along the imaginary centerline between the two clamping rings so that the lip humps can be accommodated circularly. This means that between the preferably larger diameter of the first clamping ring and the preferably somewhat smaller diameter of the second clamping ring, the mesh structure should preferably be able to enclose the lips by folding or by bringing the ribs or webs closer together, in particular such that a further smaller circumferential diameter is created along the centerline of the connecting element than that of the second clamping ring.

[0024] The connection area can also have a structure, for example reinforcements, in particular strip-shaped reinforcements. These can run in both the longitudinal and transverse directions. The structures can preferably be made of the same material as the connection area, but alternatively they can be made of a different material.

[0025] In a preferred embodiment, the holding device is made in one piece from a single material.

[0026] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element are made of plastic. Suitable plastics are known to those skilled in the art, for example polypropylene (PP) or styrene-ethyl en-butylene-styrene.

[0027] In a preferred embodiment, the holding device is manufactured or can be manufactured by an injection molding process, vacuum casting process, reaction injection molding process, stamping process, 3D printing process or thermoforming process.

[0028] In a preferred embodiment, a rubber dam is associated with the containment device.

[0029] It can therefore be provided that the retractor fixes a rubber dam in the lip area, so that the retractor, in combination with the rubber dam, also functions as a covering device. In a preferred embodiment, the retractor is simultaneously designed as a covering device for covering the lips and corners of the mouth.

[0030] In one embodiment, the holding device according to the invention is therefore also a covering device.

[0031] A covering device within the meaning of the present invention is therefore a retraction device according to the invention, which can also be used to cover the lips and corners of the mouth. This can be achieved, for example, by the retraction device fixing an associated rubber dam or by the connecting area connecting the clamping elements being designed as a covering material, for example a membrane.

[0032] In a preferred embodiment, the holding device is simultaneously designed as a covering device for covering the lips and corners of the mouth, wherein in particular the connection area includes a covering means.

[0033] In one embodiment, the connection area is therefore a covering means.

[0034] The present invention thus solves the underlying technical problem by means of a covering device, in particular a retracting and covering device, for covering the lips and corners of the mouth and for repelling the lips, cheeks and corners of the mouth from the rows of teeth in the mouth of a patient, comprising a preferably elastic lip clamping element, at least one preferably elastic vestibular clamping element and a covering means connecting the clamping elements, wherein the covering means preferably offers essentially no resistance to bending, in particular in contrast to stretching, wherein the lip clamping element, the vestibular clamping element and the covering means form a band-shaped base body of the covering device, wherein the band-shaped base body has a first and a second end region in the longitudinal direction.wherein the two end regions are connectable to each other and / or wherein the lip tensioning element and / or the vestibular tensioning element are designed as an open spring frame.

[0035] In a preferred embodiment, the covering material is a film or a membrane, i.e., a film-like material. However, the covering material can also be thicker than a film, as long as it retains an enveloping character. Preferably, the covering material is elastic. Preferably, the covering material is a film-like material. When film-like materials are mentioned in connection with the invention, they are to be understood in the broadest sense as planar structures that offer essentially no resistance to bending, as opposed to stretching. The film-like materials can be made of elastically stretchable material, but in principle also of non-stretchable material. In contrast to the prior art, covering devices according to the invention exert a pressure force over a large area on the lips and cheeks, which are to be kept away from the teeth, via the film-like materials.The foil-like means are preferably connected at one end to the second tensioning element, which is located at least partially inside the oral cavity, and at the other end to the outer tensioning element which rests on the outside of the lips or cheeks.

[0036] Additional covering materials may also be provided, which, for example, at least partially cover the indentations in the lip tension element and / or vestibular tension element.

[0037] The film-like coverings are advantageously thin and elastic. In combination with the two clamping elements, very simple, extremely flexible, and widely applicable covering devices can be created. When the covering device is applied, the film-like coverings distribute pressure over a large area and build up in a circular pattern around the mouth opening. This allows the patient to comfortably keep their mouth wide open while simultaneously gently keeping their lips and cheeks away from the teeth.

[0038] The covering material can also have a structure, for example, reinforcements, in particular strip-shaped reinforcements. These can run in both the longitudinal and transverse directions. The structures can preferably consist of the material of the covering material, but alternatively also of another material, for example, the material of the tensioning elements.

[0039] The covering material may also be perforated, for example to better adapt the stretching to the anatomy.

[0040] Suitable materials for such a covering agent, in particular suitable films and membranes, especially made of plastic, are known to those skilled in the art, for example those used in the prior art, such as in the product OptraGate®. In particular, the covering agent can consist of a thermoplastic elastomer (TPE).

[0041] The covering material is preferably thin, elastic, flexible and about 0.3 mm thick or more or less.

[0042] Preferably, the embodiments of a covering device according to the invention can also be manufactured by injection molding or by 3D printing, particularly preferably by injection molding, for example also by multi-component injection molding, if, for example, the covering material consists of a different material than the clamping elements.

[0043] Suitable materials for the clamping elements and the covering material are known to those skilled in the art, for example from WO 03 / 051185 Al, which is referenced in this context. A preferred material is plastic, for example polypropylene (PP) for the clamping elements and a thermoplastic elastomer (TPE) for the covering material.

[0044] The present invention of a holding device or covering device is therefore characterized in that the band-shaped base body, which has a first and a second end region in the longitudinal direction, wherein the two end regions are connectable to each other and / or wherein the lip tensioning element and / or the vestibular tensioning element are designed as an open spring frame.

[0045] Advantageously, when using the holding device or covering device, the strip-shaped base body can be transformed into a retaining, and in particular also covering, ring that has the width of the strip-shaped base body. Thus, when used, the base body of the holding device or covering device is formed into a ring, i.e., the strip, especially a flat strip, is deformed into a three-dimensional body. The ring closure can be complete, so that the two end regions touch or overlap; however, the ring closure need not be complete, but can be only partial, leaving a gap between the two end regions.

[0046] The invention thus provides a holding device or covering device with a band-shaped base body from which an open ring or a connectable ring can be formed. This also has the advantage that the fit is ensured by the elasticity.

[0047] The spring force has a wider range than the closed rings of the prior art.

[0048] In a preferred embodiment, the ribbon-shaped base body of the holding device or covering device has a first and a second end region in the longitudinal direction, wherein the two end regions can be connected to each other.

[0049] The ribbon-shaped base body preferably has a length of at least 10 cm and preferably up to 55 cm, particularly preferably at least 15 cm and a width of 4 cm to 10 cm, but can also, for example for surgery, have a length and / or width of up to 60 cm or more, which can then serve as a cover for the surrounding area.

[0050] In an alternative embodiment, the lip clamping element and / or the vestibular clamping element are designed as an open spring frame. Preferably, the lip clamping element and the vestibular clamping element are designed as an open spring frame.

[0051] In a preferred embodiment, the ribbon-shaped base body has a first and a second end region in the longitudinal direction, wherein the two end regions can be connected to each other, and the lip tensioning element and the vestibular tensioning element are designed as an open spring frame.

[0052] The ribbon-shaped base body does not necessarily have to be flat, like a plate, but can, for example, also be formed as a concave or convex curved surface, in particular injection-molded, so that the formed, in particular injection-molded, three-dimensional structure forms a curved surface that is joined to form a ring, similar to when a halved hose is closed to form a ring. Despite its shape, this embodiment is also less expensive to manufacture.

[0053] In particular, the band-shaped base body can also be pre-bent, especially in the form of an open ring, for example by the shaping of the lip tensioning element and / or the vestibular tensioning element. If these are curved, especially if they are designed as an open spring frame, then the band-shaped base body is also curved. Preferably, the band-shaped base body is not pre-bent but flat. This enables particularly cost-effective production and storage.

[0054] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element are made of plastic. Suitable plastics are known to those skilled in the art, for example, polypropylene (PP) or styrene-ethyl en-butylene-styrene. Alternatively, the lip clamping element and / or the vestibular clamping element can also be made of the same plastic as the connection area, in particular the covering material, and can thus also be designed as a thickening of the connection area, in particular of the covering material.

[0055] Preferably, the holding device or covering device is a single piece and made of one or two materials. This reduces production costs. Preferably, the holding device or covering device is a single piece and made of one material. Preferably, the material(s) are recyclable. Preferably, the material(s) are sterilizable, in particular autoclavable.

[0056] The lip tension element and / or the vestibular tension element are preferably elastic.

[0057] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element are designed in a wire-like, rod-like, cord-like, or tubular form.

[0058] The lip tensioning element and / or the vestibular tensioning element can also consist of round rods or cords, for example made of polypropylene (PP), with a diameter of approximately 2 mm, but can also take on any geometric shape, such as round, oval, flat, triangular, square, octagonal, etc. The tensioning elements can be continuous or interrupted, overmolded with a membrane-like elastomer, or be non-angular or rounded.

[0059] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element extend longitudinally along the band-shaped base body of the holding device or covering device. In a preferred embodiment, the lip clamping element and the vestibular clamping element extend longitudinally along the band-shaped base body of the holding device or covering device.

[0060] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element are designed as stiffeners of the connection area, in particular of the covering element. The stiffener can be formed as a component of the connection area, in particular of the covering element, or as an attached stiffener.

[0061] The clamping elements can run along the edge of the connection area, in particular the covering material, but can also run, at least partially, on the surface of the connection area, in particular the covering material.

[0062] In one embodiment, the band-shaped base body can also be curved along one of its longitudinal sides, i.e., in particular, one longitudinal side can be concave and the other convex. Preferably, the longitudinal side associated with the vestibular clamping element is concave.

[0063] In a preferred embodiment, the lip clamping element or the vestibular clamping element has a central section which is designed as an indentation in the direction of the imaginary central longitudinal axis of the band-shaped base body.

[0064] In a preferred embodiment, the lip clamping element has a central section which is designed as an indentation in the direction of the imaginary central longitudinal axis of the band-shaped base body.

[0065] In a preferred embodiment, the vestibular clamping element has a central cut-off section which is designed as an indentation in the direction of the imaginary central longitudinal axis of the band-shaped base body.

[0066] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element have a central section that is designed as a recess in the direction of the imaginary central longitudinal axis of the band-shaped base body. In a preferred embodiment, the lip clamping element and the vestibular clamping element have a central section that is designed as a recess in the direction of the imaginary central longitudinal axis of the band-shaped base body.

[0067] The indentation is preferably, at least partially, covered by the connection area, in particular the covering material. Preferably, therefore, only the lip tensioning element and / or the vestibular tensioning element have an indentation in the middle section, but not the connection area, in particular the covering material.

[0068] In a preferred embodiment, the central section of the lip clamping element and / or the vestibular clamping element, preferably the vestibular clamping element, forms a concave indentation, wherein the concave indentation is preferably at least partially spanned by a connecting area, in particular a covering means.

[0069] If the concave protrusions of the clamping elements are at least partially covered by a connecting area, in particular a covering material, this has the advantage that, despite the three-dimensionally shaped clamping elements, the overall device retains the basic shape of previous products, and thus the consumer does not have to become accustomed to a new shape. Additionally, such an embodiment has the advantage that a protective covering of the mucous membrane is also ensured there.

[0070] The indentation in the middle of the cut has the surprising advantage that, when inserted, the lip and vestibular tension elements rest on the vermilion border of the lip in this area, exerting pressure there. This increases wearing comfort because the pressure sensation is reduced. This can lead to even better lip retraction, thus providing the practitioner with an even better panoramic view. Furthermore, the sensitive oral mucosa is advantageously spared contact with the tension element.

[0071] In a preferred embodiment, the ribbon-shaped base body has a first and a second end region in the longitudinal direction.

[0072] In a preferred embodiment, the lip clamping element and the vestibular clamping element can be connected to each other. Preferably, the lip clamping element and the vestibular clamping element are each connected to each other at the first end region and at the second end region of the band-shaped base body. In an alternative or additional embodiment, the lip clamping element and the vestibular clamping element can be connected to each other in their respective central section. For example, the lip clamping element and the vestibular clamping element can be connected to each other via at least one reinforcing strip.

[0073] In an alternative embodiment, the lip clamping element and the vestibular clamping element are not directly connected to each other, but only via the connection area, in particular the covering element or the connecting elements. Preferably, the lip clamping element and the vestibular clamping element are not directly connected to each other in the central area, but only via the connection area, in particular the covering element or the connecting elements.

[0074] Preferably, especially when the lip tensioning element and the vestibular tensioning element are not directly connected, the connection area, particularly the covering element, has at least one reinforcement, in particular at least one reinforcing strip. More preferably, the connection area, in particular the covering element, has at least two, in particular two, reinforcing strips, each positioned at one of the two end regions and between the lip tensioning element and the vestibular tensioning element.

[0075] In a preferred embodiment, the lip clamping element and the vestibular clamping element are approximately the same length. When the two clamping elements are the same length, they form rings of equal size when the base body of the retaining device or cover is closed.

[0076] It may also be provided that the lip clamping element and the vestibular clamping element have different lengths, so that the rings formed when the base body of the holding device or covering device closes have different diameters.

[0077] Preferably, the lip clamping element is longer than the vestibular clamping element. Alternatively, the vestibular clamping element is longer than the lip clamping element. In a preferred embodiment, the central section of the vestibular clamping element and / or the central section of the lip clamping element, when a retractor or cover is in place, extends in the region of the lower lip. In this embodiment, the ring closure of the base body of the retractor or cover is thus achieved in the region of the upper lip.

[0078] In an alternative embodiment, the central section of the vestibular clamping element and the central section of the lip clamping element, when a retractor or cover is inserted, extend in the region of the upper lip. In this embodiment, the ring closure of the base body of the retractor or cover therefore occurs in the region of the lower lip.

[0079] The user can decide which positioning is more suitable in the specific case.

[0080] The vestibular tension element and / or the lip tension element may have thickenings and / or taperings in some areas, i.e., a larger or smaller cross-section.

[0081] The vestibular clamping element and / or the lip clamping element may have thickenings in certain areas, meaning they have a larger cross-section. These thickenings may be formed, for example, from the material of the clamping elements themselves, or from the material of the covering material, such as the covering material that is rolled around the clamping elements in these thickened areas. Such thickenings can be advantageous, for example, in the areas that, when used, rest against the outer regions of the lips, so that the vestibular clamping element and / or the lip clamping element each has four thickenings. Such thickenings can also be advantageous in the areas that, when used, rest against the corners of the mouth, so that the vestibular clamping element and / or the lip clamping element each has two thickenings. Thickenings are also possible in the anterior region.The preferred thicknesses allow the bending behavior of the clamping elements to be influenced, thus affecting the shape of the viewing window and improving the visibility of the side teeth. The thicknesses can also vary in size or, for example, increase and / or decrease in size.

[0082] The vestibular tension element and / or the lip tension element may have tapered sections in certain areas, meaning they have a smaller cross-section. Such partial tapering can be used particularly for kinks, i.e., for areas that are especially curved.

[0083] By combining section-by-section thickenings and section-by-section taperings, the holding device or covering device can be particularly well adapted to the functional anatomy.

[0084] The invention relates in particular to a first embodiment in which the ribbon-shaped base body has a first and a second end region in the longitudinal direction, wherein the two end regions can be attached to one another or connected to each other. Connecting the two end regions results in a closed ring from the ribbon-shaped base body. When the two ends are attached, a not completely closed ring is preferably formed, i.e., a ring with a very small gap. Alternatively, the end regions can also overlap.

[0085] In a preferred embodiment, the first and second end regions of the ribbon-shaped base body can be reversibly connected to one another. However, it is also possible for the two end regions to simply abut, overlap, or be irreversibly connected.

[0086] In a preferred embodiment, the first and second end regions of the ribbon-shaped base body can be connected to each other via at least one connecting component.

[0087] The terms "connecting" and "joining" encompass all types of joining. The connection can be force-fit, form-fit, or material-fit. A form-fit connection, such as a tongue-and-groove joint, is preferred. The connection is preferably made using at least one connecting component. The connection can preferably be reversible, allowing not only joining but also reopening.

[0088] Suitable connection methods and components are known to those skilled in the art, for example, plug connections, clip connections, bayonet fittings, snap fasteners, buttons, especially in combination with buttonholes, press studs, eyelets, holes, tabs, hook and loop fasteners, magnetic connections, adhesive bonds, welds, click fasteners, hook and eye closures, buckle closures, carabiners, hook and loop fasteners, zippers, cord stoppers, loops and knots, and the like. Those skilled in the art are aware of the advantages and disadvantages of the various types of connections. Adhesive bonding, both reversible and irreversible, is also included. Preferably, the retaining device or covering device has at least one such connection component, in particular a connection component for force-fit or form-fit, preferably form-fit, joining the two end regions.

[0089] Preferably, such a connecting component comprises a first connecting part component at the first end region and a second connecting part component at the second end region. Preferably, the first connecting part component is rod-shaped and the second connecting part component is sleeve-shaped. Thus, preferably the first connecting part component is a rod and the second connecting part component is a sleeve. With a simple rod and a simple sleeve, a force-fit connection is possible. Preferably, the rod-shaped first connecting part component has at least one groove or a tongue or projection, and preferably the sleeve-shaped second connecting part component has at least one tongue or projection or a groove.Thus, when the rod-shaped first connecting part component is inserted into the sleeve-shaped second connecting part component, the spring or protrusion of one connecting part component can engage in the groove of the other connecting part component, so that a positive locking connection is obtained, which can also advantageously be designed to be reversible.

[0090] However, two or more connecting components can also be provided at the end regions of the holding device or covering device. An alternative embodiment involves two connecting components at the end regions of the holding device or covering device. Of course, further or alternative connecting components can also be provided, for example, on a web or at the connecting area, in particular the covering element.

[0091] The connection can also be designed so that the length of the connection is variable, thus advantageously allowing the size of the resulting ring to be adjusted as desired and therefore adapted to the size of the patient's mouth. The adjustment can be achieved in stages, for example by buttons on one end and buttonholes on the other, or continuously, for example by simple overlapping, attaching a hook-and-loop fastener, inserting one connecting component into a second, or gluing the overlapping sections.

[0092] In the preferred embodiment, where the first connecting component is a rod and the second connecting component is a sleeve, it can advantageously be provided that the rod does not have to be fully inserted into the sleeve, but can also be only partially inserted, and the desired connection for ring formation is still achieved. In this case, the diameter of the ring can then advantageously be selected by the insertion depth of the rod, thereby allowing the ring size to be adapted to the size of the patient's mouth.

[0093] In a preferred embodiment, the lip clamping element and / or the vestibular clamping element, or the connecting zone of the lip clamping element and the vestibular clamping element, each have a bending zone at their first and second end regions. Such a bending zone preferably comprises at least one bending area, in particular at least one groove-shaped taper. Thus, one groove-shaped taper per bending zone can be provided, but two, three, or more groove-shaped tapers can also be provided. This at least one bending area of ​​a bending zone advantageously allows the clamping elements of the used retracting or covering device to adapt particularly well to the three-dimensional contour of the lips and to fit snugly against them, in particular without the retracting or covering device popping out or slipping out of the mouth area, but rather remaining securely and firmly positioned.

[0094] If the lip tension element and / or the vestibular tension element are not functioning

[0095] If the lip clamping element and / or the vestibular clamping element have connecting components or connecting part components, they preferably each have a widening at their ends. If the lip clamping element and the vestibular clamping element do not have connecting components or connecting part components, they preferably each have a widening at their ends. If the lip clamping element does not have connecting components or connecting part components, it preferably has a widening at its ends.

[0096] A holding device or covering device according to the invention is preferably comprised of a preferably elastic lip clamping element, at least one preferably elastic vestibular clamping element and a connecting area connecting the clamping elements, wherein the connecting area preferably offers essentially no resistance to bending, particularly in contrast to stretching, wherein the lip clamping element, the vestibular clamping element and the connecting area form a band-shaped base body of the holding device, wherein the band-shaped base body has a first and a second end region in the longitudinal direction, wherein the two end regions are connectable to each other, wherein preferably the end regions of the vestibular clamping element are designed as a connecting component, wherein the connecting component preferably comprises a rod-shaped first connecting part component and a sleeve-shaped second connecting part component.Preferably, a hole is provided in the connection area for gripping the holding device. Preferably, the ends of the lip clamping element are curved towards the vestibular clamping element.

[0097] Preferably, a hole is provided in the connection area for gripping the holding device. Preferably, the ends of the lip clamping element are curved towards the vestibular clamping element.

[0098] Preferably, the connection area at the end regions, especially in the area where the lip tensioning element is curved towards the vestibular tensioning element, is reinforced at least in some areas.

[0099] In a preferred embodiment of the holding device or covering device according to the invention, the lip-shaped tensioning element extends along the first longitudinal side and the elastic vestibular tensioning element along the second longitudinal side of the band-shaped connecting area, in particular the band-shaped covering element, wherein the connecting area, in particular the covering element, is curved along its longitudinal sides as a band-shaped base body, wherein the longitudinal side associated with the vestibular tensioning element is concavely curved and the longitudinal side associated with the lip-shaped tensioning element is convexly curved. The lip-shaped tensioning element and the vestibular tensioning element are preferably not directly connected to each other, but rather only connected to each other via the connecting area, in particular the covering element or the connecting elements.The connecting element, in particular the covering element or the connecting elements, preferably has two reinforcing strips, each positioned at one of the two end regions of the covering element and between the lip clamping element and the vestibular clamping element. The lip clamping element preferably has a widening at each end. The vestibular clamping element is preferably corrugated. The vestibular clamping element preferably has a concave indentation in its central section. Preferably, the concave indentation is spanned by the connecting element, in particular the covering element. The end regions of the vestibular clamping element are preferably designed as a connecting component, most preferably comprising a rod-shaped first connecting component and a sleeve-shaped second connecting component.One of the two connecting component components preferably has a groove, the other a spring or protrusion that can engage in the groove. A preferred embodiment is as shown in Figure 1a.

[0100] In an alternative, particularly preferred embodiment of the holding device or covering device according to the invention, the connecting area, in particular the covering element, is designed as a band-shaped base body with a wave-like shape along its longitudinal sides, wherein both the lip-tensioning element and the vestibular-tensioning element preferably follow this wave shape. Preferably, the vestibular-tensioning element has a concave indentation in its central section, which is particularly preferably not spanned by the connecting area, in particular the covering element. Preferably, the lip-tensioning element and the vestibular-tensioning element are not directly connected to each other, but only via the connecting area, in particular the covering element. The connecting area, in particular the covering element, preferably has two narrow reinforcing strips, which are preferably positioned between the lip-tensioning element and the vestibular-tensioning element.Preferably, the end regions of both the lip clamping element and the vestibular clamping element are each designed as a connecting component, preferably comprising a rod-shaped first connecting component and a sleeve-shaped second connecting component. One of the two connecting components preferably has a groove, the other a spring or projection that can engage in the groove. An embodiment as shown in Figure 1b is preferred.

[0101] In an alternative, particularly preferred embodiment of the holding device or covering device according to the invention, the lip-shaped tensioning element extends along the first longitudinal side and the elastic vestibular tensioning element along the second longitudinal side of the band-shaped connecting area, in particular the covering element, wherein the lip-shaped tensioning element and the vestibular tensioning element are directly connected to each other at their ends. Preferably, the lip-shaped tensioning element and the vestibular tensioning element are designed in a wave-like form. Preferably, the vestibular tensioning element has a concave indentation in its central section, wherein the concave indentation of the vestibular tensioning element is particularly preferably spanned by the connecting area, in particular the covering element. Preferably, the lip-shaped tensioning element also has a concave indentation in its central section, which, however, is preferably shallower than that of the vestibular tensioning element.The interconnected end regions of the lip clamping element and the vestibular clamping element are preferably designed as a connecting component, comprising, most preferably, a rod-shaped first connecting component and a sleeve-shaped second connecting component. One of the two connecting components preferably has a groove, the other a spring or protrusion that can engage in the groove. Preferably, the end regions of the lip clamping element and the vestibular clamping element each have bending zones. An embodiment as shown in Figure 2a is preferred.

[0102] In an alternative, particularly preferred embodiment of the holding device or covering device according to the invention, not only the lip clamping element but also the vestibular clamping element lack connecting components at their ends. A preferred feature is a widening of the ends of both the lip clamping element and the vestibular clamping element. Thus, in this embodiment, there are no connecting components. Preferably, both the vestibular clamping element and the lip clamping element have two thickenings. Preferably, the connecting area, in particular the covering element, has two reinforcing strips, each positioned at one of the two end regions and located between the lip clamping element and the vestibular clamping element, and additionally two reinforcing strips extending along the connecting area, in particular the covering element, between the end regions. An embodiment as shown in Figure 2b is preferred.

[0103] The invention also relates to a holding device or covering device according to the invention, wherein the first end region and the second end region of the band-shaped base body are connected to each other, so that the band-shaped base body of the holding device or covering device forms a ring. Thus, the invention also relates to the holding device or covering device in a deformed state, as is used, for example, on a patient.

[0104] In an alternative embodiment, the invention relates to a holding device or covering device according to the invention, wherein the lip tensioning element and / or the vestibular tensioning element are designed as an open spring frame. Naturally, in this embodiment, it can also be provided that the band-shaped base body has a first and a second end region in the longitudinal direction, wherein the two end regions are connectable to each other.

[0105] The clamping elements not only clamp the connection area, particularly the covering material or the connecting elements, but also act as spring elements, allowing them to be bent into an open or closed ring shape and spring back to their original position. Thus, the clamping elements can be advantageously compressed when the retractor or covering device is inserted into the mouth and then spring back, adapting to the size of the mouth and exerting pressure on the lip area.

[0106] In a preferred embodiment, the lip clamping element and the vestibular clamping element are each designed as an open spring frame.

[0107] In a preferred embodiment, the first end and the second end of the lip clamping element can be compressed together, and the first end and the second end of the vestibular clamping element can be compressed together.

[0108] In a preferred embodiment, the first and second ends of the lip clamping element can be connected to each other, in particular reversibly, and the first and second ends of the vestibular clamping element can also be connected to each other, in particular reversibly. A suitable connection could, for example, be a plug connection, where, for instance, the first end is pushed into the second end. Of course, other connection methods familiar to those skilled in the art can also be used, such as gluing, hook-and-loop fastening, welding, or interlocking, or those described above, in particular via connecting components and connecting part components.

[0109] In a preferred embodiment, the first end and the second end of the vestibular clamping element can be connected to each other, and in particular, can be connected reversibly. In an alternative embodiment, the first end and the second end of the lip clamping element can be connected to each other, and in particular, can be connected reversibly. In these embodiments, there is therefore a connecting component.

[0110] In a preferred embodiment, the first and second ends of the lip clamping element can be connected to each other, particularly reversibly, and the first and second ends of the vestibular clamping element can also be connected to each other, particularly reversibly. In these embodiments, there are therefore two connection components. It can also be provided that the first end of the lip clamping element is connected to the second end of the vestibular clamping element, i.e., that a crossing occurs.

[0111] Of course, other or alternative connection components may also be provided, for example on a bridge or in the connection area, especially the covering material.

[0112] In an alternative embodiment, the first and second ends of the lip clamping element and the first and second ends of the vestibular clamping element can be left unconnected. In this configuration, the ends can be close to, touching, or overlapping.

[0113] In a preferred embodiment, the lip clamping element and the vestibular clamping element do not have an additional spring element in their respective central sections. Such additional spring elements are known, for example, from DE 20 2019 000 004 Ul, which shows a flexible, arc-shaped connecting web that serves as a spring element for two lateral pads. Preferably, such a resilient web projection is not present in the central section of the lip clamping element and the vestibular clamping element.

[0114] In a preferred embodiment, the lip clamping element and the vestibular clamping element can be connected to each other at at least one of their ends, preferably at both of their ends, for example via webs or bridge elements.

[0115] In a preferred embodiment, the vestibular clamping element has at least one flat protrusion as a retention element. The protrusion can be positioned in the patient's cheek pouches, thus preventing the vestibular clamping element from unintentionally slipping out of the mouth.

[0116] In a preferred embodiment, the vestibular tensioning element has at least one section curved towards the lip tensioning element, which runs ventral to the orbital vestibule when the retractor or cover device is in place. This can advantageously increase wearing comfort.

[0117] In a preferred embodiment, the central section of the vestibular clamping element and / or the central section of the lip clamping element forms a concave indentation.

[0118] In a preferred embodiment, the central section of the vestibular clamping element forms a concave indentation, wherein the concave indentation is at least partially spanned by a connecting area, in particular a covering means.

[0119] In a preferred embodiment, the central section of the lip clamping element forms a concave indentation, wherein the concave indentation is at least partially spanned by a connecting area, in particular a covering means.

[0120] In a preferred embodiment, the central section of the vestibular clamping element forms a concave indentation, wherein the concave indentation is at least partially spanned by a connecting area, in particular a covering means.

[0121] If the concave protrusions of the clamping elements are at least partially covered by a connecting area, in particular a covering material, this has the advantage that, despite the three-dimensionally shaped clamping elements, the overall device retains the basic shape of previous products, and thus the consumer does not have to become accustomed to a new shape. Additionally, such an embodiment has the advantage that a protective covering of the mucous membrane is also ensured there.

[0122] The invention also relates to a retractor device for keeping the lips, cheeks and corners of the mouth away from the rows of teeth in the mouth of a patient, or a covering device for covering the lips and corners of the mouth and for keeping the lips, cheeks and corners of the mouth away from the rows of teeth in the mouth of a patient, comprising an elastic lip clamping element, at least one elastic vestibular clamping element and a connecting area, in particular a covering means, connecting the clamping elements, wherein the clamping elements are arranged along two opposite end regions of the connecting area, in particular the covering means, wherein the clamping elements are elastically deformable and, in a relaxed state, clamp the connecting area, in particular the covering means, wherein the lip clamping element and / or the vestibular clamping element are designed as an open, preferably spring-loaded, clamping frame.

[0123] Specific embodiments also arise from the description of the other embodiments of the connection area according to the invention, in particular the covering device. Embodiments with covering means can readily be applied by a person skilled in the art to embodiments with connecting elements and are thus considered to be disclosed for these as well.

[0124] In a preferred embodiment, the lip clamping element and the vestibular clamping element are each designed as an open clamping frame.

[0125] In a preferred embodiment, the lip clamping element and the vestibular clamping element are each designed as a spring frame.

[0126] In a preferred embodiment, the first end and the second end of the lip clamping element can be compressed together, and the first end and the second end of the vestibular clamping element can be compressed together.

[0127] In a preferred embodiment, the first and second ends of the lip clamping element and the first and second ends of the vestibular clamping element, when not compressed, have a distance of at least 0.5 cm, in particular at least 1 cm, preferably at least 2 cm. In a preferred embodiment, the central section of the vestibular clamping element and / or the central section of the lip clamping element, when a retraction device or cover device is used, extends in the region of the lower lip.

[0128] The present invention also relates to the use of a retractor or covering device according to the invention for retracting the lips, cheeks, and corners of the mouth from the dental arches in the mouth of a patient and / or for covering the lips and corners of the mouth. The present invention also relates to a method for using the retractor or covering device according to the invention.

[0129] The present invention also relates to a kit, i.e., a kit of parts or set of components, comprising at least one retractor or covering device according to the invention and instructions for use. Preferably, the instructions for use describe the dental use of the retractor or covering device according to the invention. Preferably, the instructions for use describe the method for applying the retractor or covering device according to the invention and / or the use of a retractor or covering device according to the invention for retracting the lips, cheeks, and corners of the mouth from the dental arches in the mouth of a patient and / or for covering the lips and corners of the mouth, i.e., in particular, the correct insertion of the retractor or covering device according to the invention into the mouth and the correct removal from the mouth of a patient.

[0130] Further preferred embodiments are set forth in the dependent claims.

[0131] The present invention is explained in more detail with reference to the following figures and examples, without these being to be understood as limiting.

[0132] Figure 1 shows two preferred embodiments of a covering device according to the invention;

[0133] Figure 2 shows two further preferred embodiments of a covering device according to the invention;

[0134] Figure 3 shows the covering device from Figure 1a in a closed state and inserted into the mouth of a patient; Figure 4 shows two different further embodiments of the covering device according to the invention;

[0135] Figure 5 shows an embodiment of the cover device according to the invention in a closed state, both in overall view and in detail view;

[0136] Figure 6 shows another embodiment of a covering device according to the invention;

[0137] Figure 7 shows another embodiment of a covering device according to the invention;

[0138] Figure 8 shows two embodiments of the covering device according to the invention during the joining of the two end areas;

[0139] Figure 9 shows the clamping elements of a further embodiment of the holding device or covering device according to the invention;

[0140] Figure 10 schematically shows the bending of the clamping elements of a further embodiment of the holding device or covering device according to the invention when the covering device is inserted into a mouth;

[0141] Figure 11 shows six further embodiments of a covering device according to the invention;

[0142] Figure 12 shows a preferred embodiment of a holding device according to the invention with connecting elements;

[0143] Figure 13 schematically shows the holding device from Figure 12 in a closed state and inserted into the mouth of a patient;

[0144] Figure 14 shows a preferred embodiment of a holding device according to the invention in the closed state;

[0145] Figure 15 schematically shows two alternative embodiments of a holding device according to the invention. Figure 15 shows two preferred embodiments of a covering device according to the invention.

[0146] (100) for covering the lips and corners of the mouth and for retracting the lips, cheeks and corners of the mouth from the teeth in the mouth of a patient, comprising a lip tensioning element (110), an elastic vestibular tensioning element (120) and a connecting area (130) designed as a covering element (130a). The covering device has a band-shaped base body formed by the covering element (130a).

[0147] The lip tensioning element (110) runs along the first longitudinal side (131) and the elastic vestibular tensioning element (120) along the second longitudinal side (132) of the band-shaped cover element (130a) in Figure 1a. The cover element (130a) is curved along its longitudinal sides (131, 132) as a band-shaped base body, with the longitudinal side (132) associated with the vestibular tensioning element (120) being concave and the longitudinal side (131) associated with the lip tensioning element (110) being convex. The lip tensioning element (110) and the vestibular tensioning element (120) are not directly connected to each other, but only via the cover element (130a). The covering element (130a) has two reinforcing strips (133), each positioned at one of the two end regions (134, 135) and between the lip tensioning element (110) and the vestibular tensioning element (120). The lip tensioning element (110) has a widening (112) at each end.The vestibular clamping element (120) has a wave-like shape and a concave indentation in its central section (121). The indentation is spanned by the cover element (130a). The vestibular clamping element (120) has two thickenings (123) that influence the bending behavior of the clamping elements, thus affecting the shape of the viewing window and improving the visibility of the posterior teeth. The end regions of the vestibular clamping element (120) are designed as a connecting component, comprising a rod-shaped first connecting component (11) and a sleeve-shaped second connecting component (142). By connecting the two connecting components (141, 142), a ring can be formed from the band-shaped base body of the cover device (100).One of the two connecting component components (141, 142) can have a groove, the other a spring or protrusion that can engage in the groove, thus creating not only a force-fit but also a form-fit connection that is nevertheless reversible, so that the connection can also be opened again by pulling the components apart. The embodiment of the covering device (100) according to the invention, with the illustrated shaping of the lip clamping element (110), elastic vestibular clamping element (120), and covering element (130a), results in a particularly secure and comfortable hold in a patient's mouth when closed in a ring-like manner. The lip clamping element (110) runs along the outer vermilion border of the upper and lower lips, and the vestibular clamping element (120) runs within the oral vestibule. Preferably, the connection between the two connecting component components (141, 142) is positioned in the center of the upper lip.

[0148] In Figure 1b, the covering element (130a) is designed as a band-shaped base body with a wave-like shape along its longitudinal sides, with both the lip tensioning element (110) and the vestibular tensioning element (120) following this wave shape. It follows that the vestibular tensioning element (120) has a concave indentation in its midsection (121), which is not spanned by the covering element (130a). It also follows that the lip tensioning element (110) has a convex bulge in its midsection (111). The lip tensioning element (110) and the vestibular tensioning element (120) are not directly connected to each other, but only via the covering element (130a). The covering material (130a) has two narrow reinforcing strips (133) positioned between the lip tensioning element (110) and the vestibular tensioning element (120).The end regions of both the lip tensioning element (110) and the vestibular tensioning element (120) are each designed as a connecting element, comprising a rod-shaped first connecting component (141) and a sleeve-shaped second connecting component (142). By connecting the two connecting components (141, 142), a ring can be formed from the band-shaped base body of the cover device (100). The design of the connecting components (141, 142) can be as shown in Figure 1a. The positioning of the cover device (100) in the mouth is again carried out as described for the embodiment in Figure 1a.

[0149] Figure 2 shows two further preferred embodiments of a covering device (100) according to the invention for covering the lips and corners of the mouth and for keeping the lips, cheeks, and corners of the mouth away from the teeth in the mouth of a patient, comprising a lip tensioning element (110), an elastic vestibular tensioning element (120), and a covering element (130a). The covering device has a band-shaped base body formed by the covering element (130a). In Figure 2a, the lip tensioning element (110) and the vestibular tensioning element (120) are directly connected to each other at their ends. The lip tensioning element (110) and the vestibular tensioning element (120) are shaped in a wave-like form, and the vestibular tensioning element (120) has a concave indentation in its central section (121) which is spanned by the covering element (130a).The covering element (130a) extends laterally over the lip clamping element (110) and is held there by a reinforcing frame (114), which can be thinner than the lip clamping element (110). The interconnected end regions of the lip clamping element (110) and the vestibular clamping element (120) are designed as a connecting element, comprising a rod-shaped first connecting component (11) and a sleeve-shaped second connecting component (142). The lip clamping element (110) and the vestibular clamping element (120) each have a bending zone at their connection point, which is formed by at least one taper, in this case three groove-shaped tapers (143). This allows for good adaptation to the three-dimensional contour of the lip when using the covering device (100).By connecting the two connecting part components (141, 142), a ring can be formed from the band-shaped base body of the covering device (100). One of the two connecting part components (141, 142) can again have a groove, the other a spring or protrusion that can snap into the groove. The positioning of the covering device (100) in the mouth is again carried out as described for the embodiment in Figure 1a.

[0150] The basic form of the embodiment of the cover device (100) from Figure 2b corresponds to that of Figure 1a. However, in this embodiment, not only does the lip clamping element (110) have a widening (112) at each end, but such a widening (122) is also present on the vestibular clamping element (120). Thus, in this embodiment, there are no connecting elements. Not only does the vestibular clamping element (120) have two thickenings (123), but the lip clamping element (110) also has two thickenings (113) that influence the bending behavior of the clamping elements, thereby affecting the shape of the viewing window and improving the visibility of the lateral teeth.The covering element (130a) has not only two reinforcing strips (133) positioned at each of the two end regions (134, 135) and between the lip clamping element (110) and the vestibular clamping element (120), but also two reinforcing strips (133) running along the covering element (130a) between the end regions (134, 135). In such an embodiment without connecting elements, a closed ring cannot be formed. Nevertheless, an open ring must also be stable against transverse forces. This can be achieved by increasing the cross-section, i.e., the material thickness, of the lip clamping element and the vestibular clamping element.Both clamping elements can, for example, have a cross-sectional diameter of approximately 3 mm, while in embodiments that can form a closed ring, the vestibular clamping elements can have a cross-sectional diameter of approximately 2.5 mm and the lip clamping elements can have a cross-sectional diameter of approximately 1.7 mm. In an embodiment without connecting elements, the clamping elements (110, 120) can also have different cross-sectional diameters along their length. For example, the clamping elements can be thinner in the end regions, which, for instance, are located in the area of ​​the nose when in use, and then thicken up to a region that, when inserted, is located at the corners of the mouth. The central longitudinal section, which is positioned in the area of ​​the chin when in use, can be significantly thicker again. Figure 1a shows the covering device (100) in a closed position and in the mouth of a person.

[0151] The patient's condition is shown. It can be seen that the two extensions (112) are positioned in the middle of the upper lip and bring the lip tensioning element (110) together there to form a ring, so that the lip tensioning element (110) runs around the outer vermilion border of the lip and the covering agent (130a) completely covers the lips and corners of the mouth. At the same time, the lips, cheeks, and corners of the mouth are kept away from the teeth.

[0152] Figure 4 shows two further embodiments of a covering device (100) according to the invention for covering the lips and corners of the mouth and for keeping the lips, cheeks and

[0153] The mouth corners of the teeth in a patient's mouth comprise an elastic lip tensioning element (110), an elastic vestibular tensioning element (120), and a covering element (130a). The covering device has a band-shaped base body formed by the covering element (130a).

[0154] In Figure 4a, as in Figure 2a, the lip clamping element (110) and the vestibular clamping element (120) are directly connected at their ends. The cover element (130a) is slightly thickened at its edge for stabilization. The lip clamping element (110) and the vestibular clamping element (120) each have a concave indentation in their central section (111, 121), which is spanned by the cover element (130a). The connected end regions of the lip clamping element (110) and the vestibular clamping element (120) are designed as a connecting element, comprising a rod-shaped first connecting component (141) and a sleeve-shaped second connecting component (142). The lip tension element (110) and the vestibular tension element (120) each have a bending zone at the connection area of ​​the lip tension element (110) and the vestibular tension element (120), which is designed from at least one V-bend, here three groove-shaped V-bends (143).This allows for good adaptation to the three-dimensional contour of the lip when using the cover device (100).

[0155] In Figure 4b, the basic shape of the covering device (100) corresponds to that of Figure 1a. The lip-shaped tensioning element (110) runs along the first longitudinal side (131) and the elastic vestibular tensioning element (120) along the second longitudinal side (132) of the band-shaped covering element (130a). The covering element (130a) is curved along its longitudinal sides (131, 132) as a band-shaped base body, with the longitudinal side (132) associated with the vestibular tensioning element (120) being concave and the longitudinal side (131) associated with the lip-shaped tensioning element (110) being convex. The lip-shaped tensioning element (110) and the vestibular tensioning element (120) are not directly connected to each other, but only via the covering element (130a). The covering material (130a) has two reinforcing strips (133) which are each positioned at one of the two end areas (134, 135) and are positioned between lip tension element (110) and vestibular tension element (120).The vestibular clamping element (120) has a wave-like design and a concave indentation in its central section (121). The indentation is spanned by the cover element (130a). The end regions of the lip clamping element (110) and the vestibular clamping element (120) are designed as connecting components, each comprising a rod-shaped first connecting component (141) and a sleeve-shaped second connecting component.

[0156] (142).

[0157] Figure 5a shows a cover device (100) according to the invention as a closed ring. The rod-shaped first connecting part component (141) is inserted into the sleeve-shaped second connecting part component (142). The clamping elements each have bending zones at the connection point, each consisting of three groove-shaped tapers.

[0158] (143). Figure 5b shows a close-up of the cover device (100) with the rod-shaped first connecting part component (141) which is inserted into the sleeve-shaped second connecting part component (142).

[0159] Figure 6 shows a further embodiment of the cover device (100) in which the lip clamping element (110) and the vestibular clamping element (120) are connected to each other at their two end regions (134, 135). A bayonet fitting with a button or pin (141) and a corresponding hole (142) is provided as the connecting component (140).

[0160] Figure 7 shows another embodiment of the covering device (100) in which the lip clamping element (110) and the vestibular clamping element (120) are connected to each other at their two end regions (134, 135). The connecting component (140) consists of a band with several pins (141) and a band with corresponding holes (142). This allows the diameter of the resulting ring to be changed depending on the number of holes (142) into which the pins (141) are inserted. The covering element (130a) also covers the connecting component (140).

[0161] Figure 8 schematically shows two covering devices (100) according to the invention during the joining of the two ends (134, 135). The embodiment of Figure 8a is based on the embodiment of Figure 1a. The vestibular clamping element (120) has a sleeve-shaped second connecting component (142) at the first end (134) and a rod-shaped first connecting component (141) at the second end (135). The vestibular clamping element (120) also has two thickened areas (123). The lip clamping element (110) has a widening (112) at each of the two ends (134, 135) of the covering element (130a). In Figure 8b, the first end (134) has two sleeve-shaped second connecting components (142) and the second end (135) has two rod-shaped first connecting components (141).

[0162] Figure 9 shows the clamping elements of an alternative embodiment of a holding device or covering device (100) according to the invention. A lip clamping element (110) and a vestibular clamping element (120) are shown. The clamping elements (110, 120) are elastically deformable and, in their relaxed state, clamp the connection area, in particular the covering element. The clamping elements (110, 120) are designed as an open, preferably spring-loaded, clamping frame in which the clamping elements (110, 120) are directly connected to each other in the central section (111, 121).

[0163] Figure 10 shows the clamping elements of a further embodiment of the retracting or covering device (100) according to the invention. Visible are the lip clamping element (110) and the vestibular clamping element (120), which are not only cut off in the middle (111, 121) but are also connected to each other at their ends by a bridge (150). The bending of the clamping elements (110, 120) when the covering device (100) is inserted into a mouth is also shown schematically. Examples a) to f) show various further embodiments of a covering device (100) according to the invention, all comprising a lip clamping element (110), a vestibular clamping element (120), and a covering element (130a). Various

[0164] Possible designs of the connecting components (140), which have already been explained in more detail in the previous figures.

[0165] The embodiments shown in Figures 1 to 11 as a covering device with covering material can readily be transferred to containment devices according to the invention if, instead of covering materials such as films or membranes, connecting elements such as grid structures or mesh structures are used as the connecting area, or if the connecting elements are strut-shaped, rib-shaped, rod-shaped, post-shaped, pillar-shaped, beam-shaped, or plate-shaped. Therefore, the embodiments of Figures 1 to 11 are also disclosed for containment devices according to the invention. Figure 1 shows a preferred embodiment of a containment device according to the invention.

[0166] (100) for retracting the lips, cheeks, and corners of the mouth from the dental arches in the mouth of a patient, comprising a lip tensioning element (110), an elastic vestibular tensioning element (120), and a connecting area (130) configured as connecting elements (130c, 130d, 130e). The covering device has a band-shaped base formed by the connecting area (130). The retracting device (100) is a single piece and is made of a single material.

[0167] The connecting area (130) is formed from a multitude of rod-shaped or rib-shaped connecting elements (130c, 130d, 130e) with open spaces (239) between them. The lip clamping element (110) and the vestibular clamping element (120) are not directly connected to each other, but only via connecting elements (130c, 130d, 130e). In the central region of the vestibular clamping element (120), the connecting area (130) contains a hole that is not spanned by the connecting elements (130c, 130d, 130e) and serves as a grip hole (136), allowing the dentist to better hold and position the retractor (100) during insertion. The ends of the lip clamping element (110) are curved towards the vestibular clamping element (120). In the curvature area, the connection area (130) has reinforcing strips (133) which are positioned on the lip clamping element (110).The end regions of the vestibular clamping element (120) are designed as a connecting component, comprising a rod-shaped first connecting component (141) and a sleeve-shaped second connecting component (142). By connecting the two connecting components (141, 142), a ring can be formed from the band-shaped base body of the retractor (100). The ring diameter can be changed by inserting the rod-shaped first connecting component (141) to varying degrees into the sleeve-shaped second connecting component (142). Preferably, the connection between the two connecting components (141, 142) is positioned in the center of the upper lip. Figure 12 schematically shows the cover device (100) in its closed state and inserted into a patient's mouth.It can be seen that the two reinforcing strips (133) are positioned in the middle of the upper lip and there bring the lip tensioning element (110) together to form a ring, so that the lip tensioning element (110) runs around the outer vermicular border of the lip and the connecting area (130) connects the lips and.

[0168] The mouth corner is completely surrounded. At the same time, the lips, cheeks, and corners of the mouth are kept away from the teeth. The connecting area (130) is formed from a plurality of rod-shaped or rib-shaped connecting elements (130c, 130d, 130e) between which open spaces (239) are provided, and which bend around the lip. Figure 1 shows a covering device (100) according to the invention in a closed state, comprising a lip clamping element (110), a vestibular clamping element (120), and a

[0169] Connection area (130) consisting of a variety of rod-shaped or rib-shaped

[0170] Connecting elements (130c, 130d, 130e) between which open spaces (239) are present. The end regions of the vestibular clamping element (120) are designed as a connecting component (140) in which a rod-shaped first connecting component is inserted into a sleeve-shaped second connecting component, thereby forming a ring. Figure 1 schematically shows two alternative embodiments of a cover device (100) in which the connecting area (130) is formed from a connecting element (130b) that is net-shaped or grid-shaped. Both the lip clamping element (110) and the vestibular clamping element (120) each have a rod-shaped first connecting component.

[0171] The connecting element (141) and a sleeve-shaped second connecting element (142) are shown. In Figure 15a, a multitude of rod-shaped or rib-shaped elements cross diagonally, thus forming the connecting element (130b) in the form of a picket fence. In Figure 15b, the connecting element (130b) is designed in the form of a net.

[0172] Reference sign list

[0173] 100 Holding device or covering device

[0174] 110 lip clamping element

[0175] 111 Middle section of the lip tensioning element

[0176] 112 Widening of the lip tensioning element

[0177] 113 Thickening of the lip tensioning element

[0178] 114 reinforcement frames

[0179] 120 Vestibular tension element

[0180] 121 Middle section of the vestibular tension element

[0181] 122 Widening of the vestibular tension element

[0182] 123 Thickening of the vestibular tension element

[0183] 130 connection area

[0184] 130a Covering agent

[0185] 130b Connecting element

[0186] 130c, d,e several connecting elements

[0187] 131 first long side of the covering agent

[0188] 132 second long side of the covering agent

[0189] 133 reinforcement strips

[0190] 134 first end area

[0191] 135 second end area ch

[0192] 140 connection component

[0193] 141 first connecting part component

[0194] 142 second connecting part component

[0195] 143 Bend zone

[0196] 150 jetty

[0197] 239 spaces

Claims

38 PATENT CLAIMS 1. A retraction device (100) for retracting the lips, cheeks, and corners of the mouth away from the dental arches in the mouth of a patient, comprising a preferably elastic lip clamping element (110), at least one preferably elastic vestibular clamping element (120), and a connecting area (130) linking the clamping elements, wherein the connecting area (130) preferably offers essentially no resistance to bending, particularly in contrast to stretching, wherein the lip clamping element (110), the vestibular clamping element (120), and the connecting area (130) form a band-shaped base body of the retraction device (100), characterized in that the band-shaped base body has a first and a second end region (134, 135) in the longitudinal direction, wherein the two end regions (134, 135) are connectable to each other, and / or that the lip clamping element (110) and / or the vestibular clamping element (120) are designed as an open spring frame.

2. Holding device according to claim 1, wherein the connection area (130) has a connecting element (130b) or at least two connecting elements (130c, 130d, 130e) that connect the lip clamping element (110) and the vestibular clamping element (120) together, characterized in that one of the connecting elements has spaces (239) or that a space (239) is present between the at least two connecting elements.

3. Holding device (100) according to claim 2, wherein one connecting element is a grid structure (131) or a mesh structure.

4. Holding device (100) according to claim 2, wherein the at least two connecting elements (136, 137, 138) are strut-shaped, rod-shaped, rib-shaped, post-shaped, pillar-shaped, beam-shaped or plate-shaped.

5. Holding device (100) according to one of the preceding claims, wherein the holding device is one-piece and made of one material.

6. Holding device (100) according to one of the preceding claims, wherein the holding device is manufactured by an injection molding process, vacuum casting process, 39 manufactured using reaction injection molding, stamping, 3D printing or thermoforming processes.

7. Containment device (100) according to one of the preceding claims, wherein a rubber dam is associated with the containment device.

8. Holding device (100) according to one of the preceding claims, wherein the holding device is simultaneously designed as a covering device (100) for covering the lips and corners of the mouth, wherein in particular the connecting area (130) comprises a covering means (130a).

9. Retaining and covering device (100), in particular a retaining device according to claim 8, for covering the lips and corners of the mouth and for repelling the lips, cheeks and corners of the mouth from the rows of teeth in the mouth of a patient, comprising an elastic lip tensioning element (110), at least one elastic vestibular tensioning element (120) and a covering means (130a) connecting the tensioning elements, wherein the covering means (130a) preferably offers essentially no resistance to bending, in particular in contrast to stretching, wherein the lip tensioning element (110), the vestibular tensioning element (120) and the covering means (130a) form a band-shaped base body of the covering device (100), characterized in that the band-shaped base body has a first and a second end region (134, 135) in the longitudinal direction, wherein the two end regions (134,135) are connectable to each other and / or that the lip tensioning element (110) and / or the vestibular tensioning element (120) are designed as an open spring frame.

10. Holding and covering device according to claim 8 or claim 9, wherein the covering means (130a) is a film or a membrane.

11. Holding device or covering device according to one of the preceding claims, wherein the lip tensioning element (110) and the vestibular tensioning element (120) are made of plastic.

12. Holding device or covering device according to one of the preceding claims, wherein the lip clamping element (110) and / or the vestibular clamping element (120) are wire-shaped, rod-shaped or tubular. 40 13. Holding device or covering device according to one of the preceding claims, wherein the ribbon-shaped base body has a first and a second end region (134, 135) in the longitudinal direction, wherein the two end regions (134, 135) are connectable to each other.

14. Holding device or covering device according to claim 13, wherein the two end regions (134, 135) can be connected to each other via at least one connecting component.

15. Holding device or covering device according to one of the preceding claims, wherein the lip tensioning element (110) and the vestibular tensioning element (120) are each connected to each other at the first end region (134) and at the second end region (135) of the band-shaped base body.

16. Holding device or covering device according to one of the preceding claims, wherein the lip clamping element (110) and / or the vestibular clamping element (120) or the connecting zone of the lip clamping element (110) and the vestibular clamping element each have a bending area (143), in particular at least one groove-shaped bending, at the first and second end regions (134, 135).

17. Holding device or covering device according to one of the preceding claims, wherein the lip clamping element (110) and / or the vestibular clamping element (120) have a central section (111, 121) which is designed as an indentation in the direction of the imaginary central longitudinal axis of the band-shaped base body.

18. Holding device or covering device according to one of the preceding claims, wherein the central section (121) of the vestibular clamping element (120) and / or the central section (111) of the lip clamping element (110) runs in the area of ​​the lower lip when the covering device is inserted.

19. Holding device or covering device according to one of the preceding claims, wherein the first end region (134) and the second end region (135) of the are connected to each other in a band-shaped base body, so that the band-shaped base body of the cover device (100) forms a ring.

20. Holding device or covering device according to one of the preceding claims, wherein a hole (136) is provided in the band-shaped base body for gripping the holding device or covering device.

21. Use of a holding device or covering device according to any of the preceding claims for holding back the lips, cheeks and corners of the mouth from the rows of teeth in the mouth or for covering the lips and corners of the mouth.

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