Interdentalbürste
Patent Information
- Application Number
- DE102024201000
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2023-02-07
- Filing Date
- 2024-02-05
- Publication Date
- 2025-08-28
- Estimated Expiration
- 2044-02-05
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
[0001] The present invention relates to an interdental brush comprising a handle and at least one cleaning part, wherein the cleaning part comprises a brush section for cleaning interdental spaces. Furthermore, the present invention relates to a tooth cleaning set comprising an interdental brush and at least one packaging for this interdental brush.
[0002] Interdental brushes are generally well-known in the art. They are available in various designs and are used in daily dental care, particularly to reach and clean the spaces between teeth that are difficult for a toothbrush to reach.
[0003] For example, EP 3 384 805 B1 discloses an interdental brush with the aforementioned features. For use, the cover is removed from the handle, exposing the brush section located proximally within the handle. This brush section can then be used to clean the interdental spaces. The approximately cylindrical, elongated cover of this known interdental brush is hollow and serves only to protect the brush section from contamination or mechanical influences. When not in use, the brush section lies concentrically and at a distance from the inner wall of the cover on all sides, thus being surrounded by air.
[0004] Another interdental brush known from the prior art is disclosed in European patent EP 3 141 150 B1. This includes a reservoir arranged in the handle for a cleaning solution, which can be dispensed via a front part of the interdental brush to assist in cleaning the spaces between the teeth.
[0005] US 6 418 940 B1 describes an interdental brush in which the cover part consists of a double sleeve, namely an outer sleeve into which a concentric inner sleeve is inserted. The interdental brush has a handle and is inserted into the inner sleeve. The inner sleeve has a shoulder against which a sealing ring rests, which is located on the interdental brush in the handle area. The outer sleeve tapers in the distal area and forms a cavity there which holds a liquid and into which the front end of the interdental brush projects when the brush is fully inserted, so that the brush end is wetted by the liquid. Instead of a liquid, a gel, a paste or a medication can also be held in the cavity at the front of the outer sleeve.
[0006] US 7,033,101 B2 also describes an interdental brush and shows a type of partition that separates a liquid-containing area from a hollow space. This partition has a hole in the middle that has elastic properties, so that when the brush section is pushed through, the hole widens. This partition is not exactly a membrane, but it ensures that the liquid cannot escape from this separated hollow space and that the brush section can be pushed through the partition and thus wet the brushes. The interdental brush has a housing type with two lid sections, each of which can hold an interdental brush, with the two lid sections lying end to end. Two housings are used because one of the housings can hold a gargle and the other a disinfectant.
[0007] A disadvantage that such interdental brushes known from the state of the art still have when used is the interproximal bleeding of the gums, which can occur despite the correct size selection.
[0008] US 2015 / 0000699 A1 describes an interdental brush with a reservoir for a mouthwash. This can be a liquid, a solution, a gel, or a cream. It can also have two reservoirs, each containing different agents, and application is achieved using a brush and a sponge. A membrane for separating the reservoir is not described.
[0009] US 2021 / 0386530 A1 discloses an interdental brush in which connections between adjacent housings are described, which are used by the manufacturer, so that the user purchases a package containing multiple housings. Predetermined breaking points are then provided so that a single housing can be detached from the package for use. Not only multiple lid parts, but also multiple handle parts can be connected via such detachable connections. There is no specific disclosure regarding the use of a membrane for separating a reservoir.
[0010] The Korean document KR 20 0 246 271 Y1 describes another interdental brush in which a cleaning fluid is housed in a reservoir.
[0011] Based on the aforementioned prior art, the object of the present invention is to provide an interdental brush of the type mentioned at the outset with increased utility value and to improve its handling.
[0012] The solution to the above-mentioned problem is provided by an interdental brush according to the invention having the features of claim 1.
[0013] According to the invention, the interdental brush comprises a handle part and at least one cleaning part, wherein the cleaning part has a first axial end, via which the cleaning part can be attached to the handle part or is firmly connected thereto, and the cleaning part has a second axial end or an end region which comprises a brush section for cleaning interdental spaces and an absorbent section adjacent to the brush section, arranged between the brush section and the handle part, which is suitable for absorbing a medium and / or human blood.
[0014] The absorbent section can be impregnated with a specific medicinal medium or medication and thus advantageously introduced into the user's oral cavity or interdental space, effectively preventing gingivitis or periodontal disease. The absorbent section can preferably be made of a material with a capillary effect, so that in the event of bleeding during use of the interdental brush, the resulting blood and / or wound exudate can be directly absorbed or absorbed by the absorbent section.
[0015] Further advantageous embodiments of the invention are specified in the dependent claims. The features listed individually in the dependent claims can be combined with one another in a technologically expedient manner and can define further embodiments of the invention. Furthermore, the features specified in the claims are further specified and explained in the description, where further preferred embodiments of the invention are presented.
[0016] According to one possible embodiment of the invention, the handle has a flexible head that can perform pivoting and / or torsional movements relative to a handle portion of the handle. This allows the user to variably orient the cleaning element in a desired direction, for example, to clean otherwise difficult-to-reach areas of the dentures.
[0017] A preferred development of the invention provides that the handle comprises a media chamber that can be filled with or is filled with a liquid, viscous, pasty, or gel-like medium. This medium can be pumped out of the media chamber of the handle during use of the interdental brush and introduced into the user's oral cavity. However, the brush section of the cleaning part can also be moistened with the medium contained in the media chamber before using the interdental brush.
[0018] According to a preferred embodiment of the invention, the media chamber is closed by a partition. This partition can be designed, for example, as a flexible, thin-walled membrane or as a septum.
[0019] In an advantageous embodiment, the partition wall can have an approximately central opening through which the front end of the brush section can be passed. Particularly preferably, the opening in the partition wall is designed such that it closes automatically after the brush section has been withdrawn. This allows the brush section to be inserted through the opening in the partition wall into the media chamber, thus moistening the brush section with the medium. This automatic re-closing prevents the medium from subsequently escaping from the media chamber. Furthermore, the medium in the media chamber is protected against external influences such as oxidation or contamination.
[0020] According to an alternative exemplary embodiment of the invention, the partition can also be removable, for example like a cap made of aluminum, plastic or the like, similar to a toothpaste tube, or it can be pierceable, for which purpose the cleaning part preferably has a piercing element by means of which the user can pierce the partition / cap upon first use.
[0021] According to a preferred development of the invention, the handle part comprises at least one opening, preferably a plurality of openings, at its axial end facing the cleaning part, through which the medium from the media chamber can be applied. In this embodiment of the interdental brush according to the invention, for example, the handle part can be made at least in sections of a compressible, to a certain extent flexible material, so that the handle part has a type of integrated pipette ball function, through which the medium from the media chamber can be applied by the user applying a pressure force to the handle part.
[0022] According to an advantageous embodiment, the preferably multiple openings, for example, two, three, four, or more, can be arranged along a circular line on the end face of the handle portion facing the cleaning part. The openings can be arranged, for example, at the same distance from one another. A type of group arrangement of several openings in a specific area of the end face is also conceivable.
[0023] A possible preferred variant of the invention provides that an absorbent section is provided on the handle part, adjoining the distal brush section in the axial direction and arranged between the brush section and the handle. This absorbent section can, for example, comprise a sponge-like material. According to a first preferred variant, it is provided that the absorbent section is suitable for absorbing the medium. The absorbent section makes it possible to absorb a larger amount of the medium than if only one brush section is provided on the handle part. A partition or septum in the handle part is not necessary, particularly in this variant of the invention. Additionally or alternatively, the absorbent section can be suitable for absorbing human blood and / or wound exudate if interdental bleeding should occur.
[0024] According to an alternative exemplary embodiment of the invention, the handle part comprises a rotatable closure element, via which the at least one opening, more preferably via which the plurality of openings, can be opened or closed. For example, the handle part can be designed so as to be rotatable relative to the cleaning part about a common longitudinal axis, wherein this rotation opens an opening in the handle part or an opening in a channel between the handle part and the cleaning part and medium can flow from the handle part to the cleaning part. With this embodiment, the user can dispense the medium with a simple movement of the hand, either to wet the cleaning part, i.e. the absorbent section and / or the brush section with medium or, for example, to introduce medium directly into the user's oral cavity.
[0025] The closure element can be designed in different ways. For example, it can be in the shape of a disc that includes one or more channels, so that a rotational movement of the closure element and / or the handle part aligns the at least one channel or the multiple channels with the at least one or more openings in the handle part, allowing the medium to be dispensed. However, the closure element can have other geometric shapes.
[0026] According to a possible embodiment of the present invention, for example, the handle part can comprise an application hose which is fluidically connected to the at least one opening in order to convey the medium via the hose and to discharge it at an open end of the application hose and either to wet the brush section in this way or to introduce the medium in a targeted manner into a defined area of the user's oral cavity.
[0027] For example, in the previously described embodiment, the application hose is guided at least partially separately from a region of the cleaning part comprising the absorbent section and / or the brush section. Preferably, both the application hose and the absorbent section and the brush section are orientable in different directions, and the application hose is orientable such that the dispensed medium acts upon the absorbent section and / or the brush section. The orientation can also be such, for example, that the medium acts upon the user's interdental space in a desired area.
[0028] Within the scope of the invention, the medium can have a wide variety of consistencies and viscosities, from liquid and viscous to pasty or gel-like. It is particularly preferred that the medium be pasty or gel-like. According to the invention, the medium can also be used for various purposes and can therefore have a different composition depending on the respective application. For example, it can be an agent with a medical indication, such as a hemostatic agent, since the use of interdental brushes can sometimes lead to bleeding gums. The medium can, for example, have a disinfectant or anti-inflammatory effect to prevent or treat infections. The advantage is that the medium is applied directly to the desired area of the oral cavity via the brush section of the interdental brush when cleaning the spaces between the teeth.The medium can additionally or alternatively have a caring effect to counteract mechanical irritation in the area of the tooth necks caused by the cleaning process in the interdental spaces or, for example, an analgesic effect when irritation occurs, especially in people who are particularly sensitive to pain in the area of the tooth necks or gums.
[0029] The medium can also have a cleaning effect, for example, and thus replace or complement toothpaste used to clean interdental spaces. In this case, the medium can have a viscous, pasty, or gel-like consistency. In this case, the medium can also contain micro-sized solid particles (in the µm range) to enhance the cleaning effect.
[0030] According to an optional embodiment, for example, the cleaning part of the interdental brush can be connected to the handle part via a connecting means such as a detachable plug connection, snap connection and / or screw connection.
[0031] According to an optional design variant of the interdental brush, for example, the cleaning part can have a shaft in the proximal end area, which can be inserted or screwed into a hole in the handle part in order to detachably connect the cleaning part to the handle part.
[0032] According to an optional design variant of the interdental brush, for example, the cleaning part can be designed to be flexible enough to perform pivoting movements and / or torsional movements relative to the handle part.
[0033] According to an optional embodiment of the interdental brush, a handle, in particular a projection, can be provided distally in the end region of the handle part, for example, in order to rotate the handle part relative to the cleaning part and in this way to dispense the medium from the handle part as described above.
[0034] According to an optional design variant of the interdental brush, for example, nozzles and / or bores with different opening cross-sections can be provided so that the quantity and / or the jet pattern of the emerging medium can be varied, preferably via a rotary movement on the handle part.
[0035] According to an optional embodiment of the interdental brush, the absorbent portion may, for example, comprise a pad made of cotton wool, a sponge or a sponge-like material or be formed from one of these materials.
[0036] According to an optional design variant of the interdental brush, for example, the cleaning part can comprise a carrier plate to which the absorbent section is attached. The cleaning part further comprises a connecting element, for example a rod, for connection to the handle part. The rod can then preferably be received in a bore in the handle part. This design variant enables a simple detachable connection, in particular a positive and / or non-positive detachable connection, between the cleaning part and the handle part.
[0037] According to an optional embodiment of the interdental brush, for example, the cleaning part has a largely dimensionally stable connecting section on the side of the absorbent section opposite the brush section, on the end of which a piercing element is arranged, suitable for opening a cap provided on the distal end of the handle part for closing the media chamber of the handle part in which the medium is located.
[0038] The present invention further relates to a tooth cleaning set comprising an interdental brush with the features described above, as well as at least one packaging, wherein a packaging is provided in which the cleaning part is packaged separately and preferably sterile.
[0039] The present invention further relates to a tooth cleaning set comprising an interdental brush with the features described above, as well as at least one packaging, wherein the packaging is designed to accommodate the cleaning part and the handle part.
[0040] According to a preferred embodiment of the invention, an extension rod is provided for the proximal end of the handle portion. This extension rod has a flexible head portion, which can perform pivoting and / or torsional movements relative to a handle portion of the extension rod. Extending the handle portion by means of this extension rod makes handling the interdental brush more comfortable, as the user has a greater reach and can better reach areas deeper in the oral cavity.
[0041] If the head of the handle or the head of the extension rod is flexible, it is possible to move in different directions and with multiple degrees of freedom, which also allows for advantageous handling of the interdental brush during the cleaning process, allowing even better access to the areas between the teeth in the mouth. For example, pivoting movements of the head are possible, changing the angle between the head and the longitudinal axis of the handle, or the head can perform torsional movements around the longitudinal axis of the handle.
[0042] According to a further aspect, the present invention also relates to a cover part for the interdental brush according to the invention, preferably for use with such an interdental brush. According to the invention, the cover part encloses a cavity into which a brush section of an interdental brush can be pushed in a non-use position, so that the cover part surrounds the brush section in the non-use position, wherein the cavity in the cover part accommodates and / or encompasses a liquid, viscous, pasty, or gel-like medium.
[0043] The interdental brush according to the invention can, for example, be offered as a set with several handles, several cover parts, optionally with different brush sections, and / or additionally with an extension rod. The present invention thus further relates to a tooth cleaning set comprising at least one interdental brush with a handle and brush section, as well as a cover part associated with this handle, suitable for receiving a medium, with the features described above, and optionally further comprising at least one extension rod for extending the handle.
[0044] The invention and the technical environment are explained in more detail below with reference to the figures. It should be noted that the invention is not intended to be limited by the exemplary embodiments shown. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and combine them with other components and findings from the present description and / or figures. In particular, it should be noted that the figures and in particular the illustrated proportions are only schematic. The same reference numerals denote the same objects, so that explanations from other figures can be used as a supplement if necessary. They show: Fig. 1 is a schematically simplified view of an interdental brush according to a first exemplary embodiment of the present invention; Fig. 2 is a view of an interdental brush according to an alternative embodiment of the invention; Fig. 3 is a view of an interdental brush according to another alternative embodiment of the invention; Fig. 4 is a view of an interdental brush according to another alternative embodiment of the invention; Fig. 5 is a side view of an interdental brush according to an alternative embodiment of the invention in a package; Fig. 6 is a side view of an interdental brush in partial perspective view according to another exemplary embodiment of the invention; Fig. 7 a view of an interdental brush according to another exemplary embodiment of the invention; Fig. 8 View of a further exemplary embodiment of an interdental brush according to the invention; Fig. 9 a side view of an interdental brush according to a further exemplary embodiment of the invention in a partially perspective view.
[0045] In the following, the present invention will first be described with reference to the Fig. 1 is explained in more detail. The illustration shows an exemplary interdental brush according to the invention, which is designated overall by the reference numeral 10, in a side view in partial longitudinal section. This comprises a handle part 11 for holding the interdental brush 10 and a cleaning part 12, which is arranged in axial extension of the handle part 11. The cleaning part 12 has a first axial end 121, via which the cleaning part 12 can be attached to the handle part 11 or is firmly connected thereto, and a second axial end 122 or an end region which comprises a brush section 15 for cleaning interdental spaces and an absorbent section 16 adjacent to the brush section 15 and arranged between the brush section 15 and the handle part 11.This absorbent portion 16 can be a pad made of an absorbent material, such as cotton wool, or of a plastic with cavities, such as a foam or the like, so that the absorbent portion 16 is suitable for absorbing a medium, such as a liquid with a medicinal effect, for example, a hemostatic, disinfectant, cleansing, or the like. Commercially available, the cleaning part 12 can be closed with a corresponding closure cap 44.
[0046] Fig. 2 shows a similar embodiment of an interdental brush 10 as in Fig. 1, but with the difference that the handle part 11 has a flexible head 25 which can perform pivoting movements and / or torsional movements relative to a handle section of the handle part 11.
[0047] Fig. Figure 3 shows a side view of a further embodiment of an interdental brush 10 according to the invention, in which the handle part 11 comprises a media chamber 13 that can be filled or is filled with a liquid, viscous, pasty, or gel-like medium 14. The cleaning part 12 and the handle part 11 are preferably designed as separate components, wherein the cleaning part 12 is detachably connectable to the handle part 11 via a connecting element 26, such as a pin or the like. For this purpose, the handle part 11 has a correspondingly designed receptacle 261 for the connecting element 26. As can be seen from the illustration, the media chamber 13 in this embodiment is closed at its distal end by a partition 42, which can be opened by the user to gain access to the medium 14 in the media chamber 13. This partition 42 can be designed, for example, as a flexible, thin-walled membrane or as a septum.The partition wall 42 can, for example, have an approximately central opening 43 through which the front end of the brush section 15 can be passed in order to wet the brush section 15 with the medium, wherein the opening 43 in the partition wall 42 is preferably designed such that it closes again automatically after the brush section 15 has been pulled out.
[0048] Fig. 4 shows a further embodiment of an interdental brush 10 according to the invention, in which, in contrast to the Fig. 3, the partition wall 42 is not arranged at the distal end of the handle part 11, but is located in the handle part 11. In this embodiment, the handle part 11 and the cleaning part 12 can be connected to one another via a clamping and / or plug-in connection 17, so that the cleaning part 12 can also be separated from the handle part 11 in order to be able to insert the brush section 15 of the cleaning part 12 into the media chamber 13 and to wet and / or impregnate it with the medium 14.
[0049] The medium 14, which is located in the media chamber 13 of the handle part 11 beyond the partition 42, can, for example, also be different from the medium already applied to the absorbent section 16. It can, for example, be a gel or a paste with a cleaning effect.
[0050] The following is based on the Fig. 5 illustrates a further exemplary embodiment of the present invention. The interdental brush 10 according to this embodiment is shown in an assembled state of use, in which the cleaning part 12 is connected to the handle part 11. This assembled interdental brush 10 can, when commercially available, be completely contained in a package 38. The interdental brush 10 according to Fig. 5 in turn comprises a handle part 11, a cleaning part 12 connectable thereto, which comprises an absorbent section 16 and a brush section 15. The absorbent section 16 comprises, for example, a pad made of cotton wool or a sponge that is absorbent and can be impregnated with the medium 14 located in the handle part 11 or with another medium. Between the absorbent section 16 and the handle part 11, the interdental brush 10 in this variant comprises a largely dimensionally stable connecting section 39 that is suitable for absorbing a certain pressure force. At the end facing the handle part 11, a piercing element 40, such as a nail, a stylus, or a similar sharp tool, is attached to the connecting section 39 and can be used to open the handle element 11 at its distal end, where the partition 42 is located.At this distal end, a cap 42 closing the media chamber 13 inside the handle part 11 at the front, or a film made of a breakable material such as aluminum, plastic, or the like, can be provided as a partition 42. The film can then be pierced using the piercing element 40 to gain access to the medium 14 located inside the handle part 11 upon initial use. The cap 42 can also be designed to be resealable, so that the media chamber 13, in which the medium 14 is located, can be closed again and only a portion of the medium 14 can be removed from the interior of the handle part 11 for each use.
[0051] The following is based on the Fig. 6 illustrates a further exemplary embodiment of an interdental brush 10 according to the invention. In this variant, the interdental brush 10 also comprises a handle part 11, an absorbent section 16, and a brush section 15. It can be seen that here, in a head part 20 of the handle part 11, a plurality of nozzles or openings 19 are provided, which are spaced apart from one another, for example, distributed over the circumference on an end face 21 of the head part 20. The medium can be dispensed from the media chamber 13 in the handle part 11 via these nozzles or openings 19, for example by spraying and / or splashing. In this variant, the handle part 11 has a bulbous shape, resulting in a taper 23 between the distal region of the handle part 11 and the head part 20. The handle part 11 can, for example, be made of a compressible material, so that medium 14 can be dispensed by applying pressure to the handle part 11.This function is similar to a pipette bulb used to dispense liquid from a pipette. Therefore, this function is referred to herein as the pipette bulb function.
[0052] In the variant according to Fig. 6, a cover part 24 is provided, which can be slid, snapped, or screwed onto the proximal end of the handle part 11 like a cap in order to close the nozzles or openings 19 when the interdental brush 10 is not in use. This cover part 24 can optionally have a central bore on its side facing away from the handle part 11, so that in the assembled state, the brush section 15 and, if applicable, the absorbent section 16 can protrude through this bore.
[0053] The following refers to the Fig. 7, wherein a further exemplary variant of an interdental brush 10 according to the invention is explained with reference to this illustration. The interdental brush 10 here comprises at least two components which are separable from one another, wherein a first component comprises the handle part 11 and a second component comprises the cleaning part 12 with the absorbent section 16 and the brush section 15, so that the separation of the two components during disassembly takes place in the area between the handle part 11 and the absorbent section 16. The cleaning part 12 comprises a first axial end 121, via which it can be connected to the handle part 11, and a second axial end 122, at which the brush section 15 is located.
[0054] When the present invention refers to a “brush section,” it does not necessarily have to have bristles in the classic sense, but projections, pegs, elevations (interdental picks) of almost any shape, for example made of plastic, can be attached to a shaft, in particular formed in one piece, which achieve the cleaning effect in the interdental spaces when the interdental brush 10 is moved axially during use.
[0055] The assembly of cleaning part 12 and handle part 11 can be done, for example, by plug connection, screw connection or similar.
[0056] The handle 11 contains the media chamber 13 within it, which is suitable for accommodating a liquid, viscous, pasty, or gel-like medium 14. The medium 14 can also be dispensed from the handle 11 using the previously described pipette ball function. The cleaning part 12 is detachably attached to the handle 11, allowing the cleaning part 12 to be removed, cleaned, and replaced as needed.
[0057] The handle part 11 is in the variant of Fig. 7, for example, cylindrical. In the illustration according to Fig. 7, the cleaning part 12 with the brush section 15 is mounted on the handle part 11, wherein the absorbent section 16 adjoins the first axial end 121 in axial extension and the brush section 15 in turn adjoins the distal end of the absorbent section 16 in axial extension and extends to the second axial end 122 of the cleaning part 12, so that the absorbent section 16 is arranged between the handle part 11 and the brush section 15.
[0058] In this embodiment, a front proximal region of the cylindrical handle part 11 can be designed to be rotatable relative to the rest of the handle part 11. For example, it can be a type of disc that sits in front of the housing of the handle part 11 as a cover and closure element 29 and in which one or more channels are located. By rotating the closure element 29, a channel 31 can coincide with an opening 19 in the front proximal region of the handle part 11, thereby creating a fluid connection and allowing the medium 14 to flow out of the media chamber 13 in the handle part 11 in the axial direction and to the cleaning part 12, for example to wet the absorbent section 16.
[0059] With this variant, it is also possible to provide multiple channels 31 and, for example, to design them with different opening cross-sections, so that the amount and / or jet pattern of the exiting medium can be selected differently by turning the closure element 29. If the closure element 29 is in a rotational position in which the opening 19 does not coincide with the channel 31, or the channels, no medium 14 emerges. With this variant, the medium 14 can be dispensed in a radially outer area regardless of the use of the absorbent section 16. However, the medium 14 can also be dispensed in such a way that it wets the brush section 15 and / or the absorbent section 16 when it exits the channel 31. Even if the absorbent section 16 is not wetted, it can be used to absorb liquid from the user's oral cavity.
[0060] Fig. Figure 8 shows a further embodiment of an interdental brush 10 with a handle part 11 and, in this variant, a flexible cleaning part 12 which is movable relative to the handle part 11. This illustration shows that when using such a flexible cleaning part 12, the user can vary the direction in which a medium 14 is dispensed and the relative position of the brush section 15 as required. For this purpose, for example, the cleaning part 12 comprises a type of application tube 18 which is flexible to a certain extent and has an opening 19 at its front end through which the medium 14 can be dispensed. The proximal end of this application tube 18 is in a fluid connection, which can be closed if necessary, with the media chamber 13 in the handle part 11, in which the medium 14 is located.The brush section 15 and the absorbent section 16 connected to it are also flexible, yet inherently dimensionally stable, so that the cleaning part 12, with the brush section 15 arranged distally thereto, can be bent and aligned in a specific direction during use. Thus, the user can position not only the brush section 15 but also the absorbent section 16 in the mouth in a defined manner in order to clean a desired area and / or apply the medium 14 located on the absorbent section 16.
[0061] The following is based on the Fig. 9 explains another exemplary embodiment of an interdental brush 10. This interdental brush 10 essentially consists of two components that can be connected to one another, namely the handle part 11 (on the right in the drawing) and the cleaning part 12 that extends this handle part 11 in the axial direction and can be connected to the handle part 11. On the side facing away from the handle part 11, the cleaning part 12 has the absorbent section 16, which can consist of a cotton pad and can be impregnated with the medium 14. The cleaning part 12 can be separated from the handle part 11. For this detachable connection, for example, a connecting element 26 in the form of a pin, which optionally has an external thread, or the like, can be attached to the side of the cleaning part 12 facing the handle part 11, which connects to a corresponding simple bore 261, optionally one with an internal thread.The handle portion 11 also contains a media chamber 13, which can be filled with a liquid, pasty, or gel-like medium, which can then be used to wet the brush portion 15 of the interdental brush 10. This wetting of the brush portion 15 can be achieved, for example, by inserting the brush portion 15, tip first, into the media chamber 13 before use.
[0062] The handle part 11 can be reusable, so that the user only replaces the cleaning part 12 with the brush section 15 after use. Accordingly, the handle part 11 can be purchased by the user in an empty state without medium, so that the media chamber 13 is only filled with the medium by the user when needed. At the proximal end, the handle part 11 can have a flange 35 which, when assembled, rests against a carrier plate 36 of the cleaning part 12. The absorbent section 16 is arranged on the side of the carrier plate 36 facing away from the handle part 11, wherein the cotton pad of the absorbent section 16 can be attached to this side of the carrier plate 36 using suitable fastening means, for example by means of adhesive, via a mandrel (not shown here), or the like.
[0063] The variant according to Fig.Figure 9 shows that the cleaning part 12 with the absorbent section 16 can be separated from the handle part 11. In this disassembled state, the cleaning part 12 with the brush section 15 attached thereto can be housed in a separate packaging 38, for example, approximately cylindrical or longitudinally cuboid-shaped from the handle part 11, for commercial purposes and for transport. To ensure the sterility of the interdental brush 10, this packaging 38 can be a negative pressure or vacuum inside. The absorbent section 16 can, for example, be prepared by the manufacturer with a gel, a liquid, or an emulsion, which can be different from the medium that the user fills into the media chamber 13 of the handle part 11 and which is preferably used as the cleaning medium with which the brush section 15 is applied. List of reference symbols 10 interdental brushes 11 Handle 12 Cleaning part 121 first axial end 122 second axial end 13 Media Chamber 14 Medium 15 Brush section 16 absorbent section 17 Clamp and / or plug connection 18 Application hose 19 Opening, nozzles 20 headboard 21 frontal surface 23 Rejuvenation 24 Lid part, cap 25 flexible head 26 Connecting element / pin 261 Mounting / Bore 29 Locking element, disc 31 channels 35 flange 36 carrier plate 38 Packaging 39 dimensionally stable connecting section 40 piercing element 42 Partition, cap, foil 43 Opening in the partition wall 44 cap
Claims
[1] Interdental brush (10) comprising a handle part (11) and at least one cleaning part (12), wherein the cleaning part (12) has a first axial end (121) via which the cleaning part (12) can be attached to the handle part (11) or is firmly connected thereto, and a second axial end (122) or an end region which comprises a brush section (15) for cleaning interdental spaces and an absorbent section (16) adjacent to the brush section (15) and arranged between the brush section (15) and the handle part (11), which is suitable for absorbing a medium (14) and / or human blood. [2] Interdental brush (10) according to claim 1, characterized by that the handle part (11) has a flexible head (25) which can perform pivoting movements and / or torsional movements relative to a handle section of the handle part (11). [3] Interdental brush (10) according to claim 1 or 2, characterized bythat the handle part (11) comprises a media chamber (13) which can be filled or is filled with a liquid, viscous, pasty or gel-like medium (14). [4] Interdental brush (10) according to claim 3, characterized by that the media chamber (13) is closed by a partition wall (42). [5] Interdental brush (10) according to claim 4, characterized by that the partition wall (42) is designed as a flexible thin-walled membrane or as a septum. [6] Interdental brush (10) according to claim 4 or 5, characterized by that the partition wall (42) has an approximately central opening (43) through which the front end of the brush section (15) can be passed, wherein the opening (43) in the partition wall (42) is preferably designed such that it closes automatically after the brush section (15) has been pulled out. [7] Interdental brush (10) according to one of the preceding claims 4 to 6, characterized bythat the partition wall (42) is designed to be removable or pierceable, for which purpose the cleaning part (12) preferably has a piercing element (40). [8] Interdental brush (10) according to one of the preceding claims, characterized by that the handle part (11) comprises at its axial end facing the cleaning part (12) at least one, preferably several, opening(s) (19) through which the medium (14) from the media chamber (13) can be applied. [9] Interdental brush (10) according to claim 8, characterized by that the handle part (11) has an integrated pipetting ball function via which the medium (14) can be applied from the media chamber (13). [10] Interdental brush (10) according to claim 8 or 9, characterized by that the handle part (11) comprises a rotatable closure element (29) via which the at least one opening (19) can be opened or closed. [11] Interdental brush (10) according to claim 8, characterized bythat the handle part (11) comprises an application hose (18) which is fluidically connected to the at least one opening (19). [12] Interdental brush (10) according to claim 11, characterized by that the application hose (18) is guided at least in sections separately from a region of the cleaning part (12) comprising the absorbent section (16) and / or the brush section (15), wherein preferably both the application hose (18) and the absorbent section (16) and the brush section (15) are orientable in different directions, wherein the application hose (18) is orientable such that dispensed medium (14) acts on the absorbent section (16) and / or the brush section (15). [13] Tooth cleaning set comprising an interdental brush (10) according to one of the preceding claims and at least one packaging, characterized bythat a package (38) is provided in which the cleaning part (12) is packaged separately and preferably sterile. [14] Tooth cleaning set comprising an interdental brush (10) according to one of claims 1 to 12 and at least one packaging, characterized by that the packaging (38) is designed to accommodate the cleaning part (12) and the handle part (11).
Citation Information
Patent Citations
Portable interdental brush
EP3141150B1
Interdental toothbrush
EP3384805B1
Proxabrush including gargle fluid
KR200246271Y1
Oral hygiene device and method of using the same
US20150000699A1
Interdental device
US20210386530A1