EP4536035B1 - Interdentalreiniger - Google Patents

Interdentalreiniger

Info

Publication number
EP4536035B1
EP4536035B1 EP23731257.4A EP23731257A EP4536035B1 EP 4536035 B1 EP4536035 B1 EP 4536035B1 EP 23731257 A EP23731257 A EP 23731257A EP 4536035 B1 EP4536035 B1 EP 4536035B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
interdental cleaner
cleaning part
free end
along
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23731257.4A
Other languages
English (en)
French (fr)
Other versions
EP4536035C0 (de
EP4536035A1 (de
Inventor
Jeannie Heart STRØMSBORG
Oscar THEILVIG STRØMSBORG
Mogens HAMMER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tandex AS
Original Assignee
Tandex AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tandex AS filed Critical Tandex AS
Publication of EP4536035A1 publication Critical patent/EP4536035A1/de
Application granted granted Critical
Publication of EP4536035C0 publication Critical patent/EP4536035C0/de
Publication of EP4536035B1 publication Critical patent/EP4536035B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/005—Arrangements of the bristles in the brush body where the brushing material is not made of bristles, e.g. sponge, rubber or paper
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/22—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier rubber bristles being fixed in or on brush bodies
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/04—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by mouldable materials, e.g. metals, cellulose derivatives, plastics

Definitions

  • the present disclosure relates to an interdental cleaner for cleaning an interdental space between adjacent teeth.
  • the interdental cleaner comprises a handle part and an elongated cleaning part, where a cleaning element is arranged circumferentially around the cleaning part
  • JP-H-06304218 discloses a device for massaging gums and having a vibration motor
  • US5123841 discloses an apparatus for removal of dental plaque from in between adjacent teeth.
  • the apparatus includes a hand piece for mechanically moving a dental brush having a conical shape.
  • the apparatus further comprises vibrating means in said hand piece adapted for mechanically vibrating the dental brush.
  • WO 2014/054011 discloses a dental device comprising: a handle and a stem.
  • the stem has a tip with an end.
  • the tip has a first groove winding therearound extending from a first distal point proximate the end towards the handle at least one complete turn around the tip to a first-groove termination point.
  • the stem has a first flange projecting outward therefrom and winding therearound. The first flange extends away from the handle from a first proximal point towards the end of the tip to a first-flange termination point.
  • the IT 2020 0001 5301 discloses a dental brush with a triangular shape of the bristles.
  • the bristles may have a helical distribution around the stem having a circular cross-sectional shape.
  • the circular cross-sectional shape allows the user to easily rotate the dental brush between the teeth.
  • US 2005/257338 discloses a treatment element which can be mounted onto an appliance for cleaning dental interstices.
  • the treatment element comprises a shank provided with bristles that radiate outwards.
  • the brush head has a substantially polygonal, in particular triangular form.
  • US 5,775,346 discloses an interproximal dental appliance in the form of a floss-type linear media, a pick-type interproximal dental cleaner/tissue stimulator and an interproximal brush, include an elongated base and a plurality of elastomeric flat-faced flanges extending perpendicularly outwardly from the base in a staggered pattern to form a ribbed segment.
  • the flanges include a first set of flanges spaced from one another along a longitudinal axis of the base and radially aligned with one another about the longitudinal axis, and a second set of radially aligned flanges longitudinally disposed in an alternating manner between adjacent flanges of the first set, wherein the first set of flanges is radially offset from the second set of flanges.
  • Interdental brushes are small-headed brushes available in different widths to match the space between teeth for interdental treatment. They can be cone shaped or cylindrical, and they play an important role in the improvement of oral health.
  • interdental brushes are commonly recommended aids for cleaning between the teeth.
  • One problem relates to the ability of the brushes to efficiently enter the interdental space.
  • Another problem relates to the ability of the brushes to efficiently remove the film of bacteria, so called dental plaque.
  • the disclosure provides an interdental cleaner according to claim 1.
  • the handle part and the elongated cleaning part may be formed in one piece, e.g., by moulding the handle part and the elongated cleaning part by use of the first material.
  • the handle part and the elongated cleaning part may be formed as two separate elements which may subsequently be joint.
  • the cleaning part extends in first direction from the handle part and terminates in a free end which free end is to be inserted between two adjacent teeth during use of the interdental cleaner.
  • the first direction may correspond to an insert direction during use.
  • the length of the cleaning part i.e., the size of the cleaning part along the first direction may be in the range of 15-50 mm.
  • a cleaning element of a second material being more flexible than the first element is arranged circumferentially around the cleaning part.
  • the cleaning part may be fully covered by the cleaning elements, whereas the cleaning element in an alternative embodiment may be arranged circumferentially around the cleaning part to cover only a part hereof.
  • first material and/or the second material may be a material which comprises more than one ingredient.
  • first material and second material are not limiting the material to pure materials with no additives or combination of materials.
  • first material and second material specify that the cleaning element is made of another material than the handle part and the cleaning part.
  • first and second material may comprise the same ingredients, however in different ratios.
  • the first material may be polypropylene with an additive to make it less flexible
  • the second material may likewise be polypropylene, e.g., without the additive or with a smaller amount of the additive or with a different additive to make the second material more flexible than the first material.
  • the cleaning element forms a helical pattern around the cleaning part.
  • the helical pattern may extend at least around a part of the cleaning part.
  • the helical pattern extends continuously along at least a part of the cleaning part to form an un-interrupted pattern.
  • the helical pattern may extend uniformly or non-uniformly along at least a part of the cleaning part to form an un-interrupted pattern being uniform or nonuniform.
  • the helical pattern may be uniform along one part of the cleaning part and nonuniform along another part of the cleaning part.
  • the helical pattern forms a substantially triangular cross-section transverse to the first direction.
  • the cleaning part forms a substantially triangular cross-section transverse to the first direction. This may further facilitate arrangement of the cleaning element around the cleaning part.
  • the cleaning element may extend non-uniformly from the cleaning part, e.g., by providing triangular cross-sections, where at least some are of different size and/or shape.
  • the helical pattern is formed by a plurality of interconnected triangular elements. It should be understood that the interconnected triangular elements may be integrally formed, e.g., by moulding the interconnected triangular elements in the same process step(s). Thus, each triangular element may constitute a winding in the helical pattern.
  • the number of interconnected triangular elements/windings may as an example be in the rage of 15-25, such as in the range of 17-22.
  • the cross-sectional shape of at least some of the triangular elements may be different than a triangular cross-section of the cleaning part, whereby at one or more positions along the cleaning part, the cross-sectional shape of a triangular element forming part of the cleaning element may be different than the cross-sectional shape of the cleaning part at the same position.
  • the plurality of interconnected triangular elements may comprise at least one bending section, whereby the plurality of triangular elements may extend in at least two planes to thereby facilitate connection of two adjacent triangular elements.
  • each of the plurality of triangular elements may be flat element extending in only one plane.
  • some of the triangular elements may comprise at least one bending section, while other triangular elements may be substantially flat elements.
  • the triangular elements are formed as isosceles triangular elements. This may facilitate insertion of the cleaning part with the helical pattern into a cavity between two adjacent teeth.
  • the two legs of triangle having substantially the same length may be arranged to slide along the two adjacent teeth, whereas the leg having another length may be arranged to slide along the gum.
  • the two legs of substantially the same length is longer than the third leg of the triangle as this may provide a better fit into the cavity.
  • the length of the third leg may be in the range of 50-80% of length of the two legs of substantially the same length.
  • the distance between an outer edge of two neighbouring threads of the helical pattern arranged circumferentially around the cleaning part; i.e. pitch of the helical pattern may decrease at least along a part of the cleaning part towards the free end.
  • the pitch may be constant.
  • the pitch may decrease along the full length of the helical pattern.
  • the decrease of the pitch may be uniform along the length of the part of the cleaning part.
  • the pitch may decrease non-uniformly along the length of the part of the cleaning part.
  • the pitch may decrease uniformly along at least one part and non-uniformly at least along another part.
  • a material thickness of the cleaning element may decrease at least along a part of the cleaning part towards the free end.
  • the cleaning element may be more flexible towards the free end. This may facilitate insertion and/or movement of the cleaning part in a cavity between adjacent teeth.
  • the decrease may as an example be achieved by providing a number of neighbouring threads of the helical pattern with the same material thickness, and providing a number of subsequent neighbouring threads of the helical pattern of a material thickness being smaller, where the subsequent neighbouring threads are closer to the free end.
  • a material thickness of the cleaning element may decrease from the cleaning part towards an edge portion of the cleaning element; i.e., the cleaning element may be thicker in the area around the cleaning part than at the edge portion.
  • triangular elements being connected to form the helical pattern may have a centre area being thicker than the edge portion of the triangular elements.
  • a decreasing thickness towards the edge portion may facilitate insertion and/or movement of the cleaning part in a cavity between adjacent teeth.
  • the material thickness of the cleaning element may be in the range of 0.05-0.35 mm.
  • a cross-sectional area of the cleaning element may decrease at least along a part of the cleaning part towards the free end.
  • triangular elements being connected to form the helical pattern may have a cross-sectional area where a triangular element positioned closer to the free end is smaller than a triangular element being positioned closer to the handle part.
  • a decreasing cross-sectional area towards the edge portion may facilitate insertion and/or movement of the cleaning part in a cavity between adjacent teeth.
  • the cross-sectional area may decrease stepwise, whereby two neighbouring triangular elements may be of the same size.
  • the cross-sectional area may be uniform along a part or along parts of the cleaning part, whereas it may decrease along another or along other parts of the cleaning element.
  • a height of the cleaning element may decrease at least along a part of the cleaning part towards the free end, where the height is defined as a dimension of the cleaning element transverse to the first direction.
  • the height may be uniform along a part or along parts of the cleaning part, whereas it may decrease along another or along other parts of the cleaning part towards the free end hereof.
  • the height of the cleaning element may be in the range of 1.5-4.0 mm.
  • a dimension of the cleaning part transverse to the first direction may decrease at least along a part of the cleaning part towards the free end.
  • the triangular cross-section of the cleaning part may thus taper down at least along a part of the cleaning part towards the free end.
  • the dimension may decrease uniformly, whereby tapering may be uniform along the length of the cleaning part.
  • the dimension may decrease along a first part of the cleaning part, and may be uniform or may increase along a second part of the cleaning part, where the second part is closer to the free end than the first part.
  • the free end forms a tip part which may not be covered by the second material.
  • the cross-section of the cleaning part may taper down towards the position at which the tip part starts. At this position the cross-sectional area of the cleaning part may increase to a size which correspond to the cleaning part covered with the second material to thereby ensure that the cross-sectional area does not decrease from the tip part to the part of the cleaning part covered by the second material.
  • the first material may be selected from a group consisting of polypropylene, polypropylene copolymer blend with high density polyethylene (HDPE), such as a biobased HDPE, or other suitable materials with similar characteristics.
  • HDPE high density polyethylene
  • the second material may be selected from a group consisting of different thermoplastic elastomers, or other materials with similar characteristics.
  • the free end may form three curved tip edges, where the tip edges converge towards the free end to thereby round off the free end.
  • the handle part may be formed as a substantially flat element defining two opposite gripping surfaces. A user may grab the handle part by two fingers, one on each opposite sides of the handle part.
  • the second material may at least partly cover an edge portion along the handle part.
  • the two opposite gripping surfaces may not be covered, as the second material may only be provided along the edge portion of the handle part or at least a part hereof.
  • a surface pattern may be formed on at least one of the gripping surfaces.
  • the surface pattern may fully cover one or both gripping surfaces. However, in an alternative embodiment, only a part of one or both gripping surfaces may be covered.
  • the surface pattern may increase the grip.
  • the surface pattern may comprise a plurality of protrusions and/or indentations.
  • the interdental cleaner according to the disclosure may be used by performing the following steps:
  • the more flexible helical pattern may transport unwanted material away from the cavity.
  • the interdental cleaner according to the disclosure may be manufactured by the following steps:
  • the second step may likewise be an injection moulding step.
  • Fig. 1 illustrates a perspective view of an embodiment of an interdental cleaner 1 which comprises a handle part 2 and an elongated cleaning part 3.
  • the cleaning part 3 extends in a first direction (indicated by the arrow A) from the handle part 2 and terminates in a free end 4.
  • the handle part 2 and the elongated cleaning part 3 are formed by a first material.
  • a cleaning element 5 is arranged circumferentially around the cleaning part 3 and forms a helical pattern 5A.
  • the helical pattern forms a substantially triangular cross-section transverse to the first direction A.
  • the cleaning element 5 is formed by a second material being more flexible than the first material.
  • the helical pattern 5A extend around a part of the cleaning part 2 leaving the tip end 6 uncovered by the cleaning element 5.
  • the helical pattern 5A is formed by a plurality of interconnected triangular elements 7 being integrally formed, e.g., by moulding the interconnected triangular elements in the same process step(s), whereby each triangular element 7 constitutes a winding in the helical pattern 5A.
  • the plurality of interconnected triangular elements 7 each comprises at least one bending section 8 (see Figs. 4 and 6 ), whereby the plurality of triangular elements 7 extend in at least two planes to thereby facilitate connection of two adjacent triangular elements 7.
  • two neighbouring triangular element 7 positioned in the area of the tip end 6 are arranged with a smaller distance between them than two neighbouring triangular element 7 positioned in the area further away from the tip end 6.
  • the free end 4 forms a tip end 6 which is not covered by the second material.
  • the cross-section of the cleaning part 3 taper down towards the position P at which the tip end 6 starts (see Fig. 2 for more details).
  • the cross-sectional area of the cleaning part 2 increases to a size which correspond to the cleaning part 2 covered with the second material to thereby ensure that the cross-sectional area does not decrease from the tip part to the part of the cleaning part covered by the second material.
  • Fig. 2 additionally illustrates the increased cross-sectional area of the cleaning part 2 at the position P.
  • Fig. 3 illustrates a side-view
  • Fig. 4 illustrates a side-view of the cleaning part of the interdental cleaner 1 also illustrated in Fig. 1 and 2 .
  • Fig. 5 illustrates a view from below of an embodiment of an interdental cleaner 1
  • Fig. 6 illustrates a view from above of an embodiment of an interdental cleaner 1.
  • Protrusions 9 are additionally arranged on an outer surface of the handling part 2 to facilitate arrangement of a coating by the second material along a part of the handling part 2.
  • Fig. 7 illustrates a cross-section of the interdental cleaner 1 inserted into a cavity 11 between two adjacent teeth 12.
  • the triangular elements 7 are formed as isosceles triangular elements to facilitate insertion of the cleaning part 2 with the helical pattern 5A into the cavity between two adjacent teeth.
  • the two legs 13 of triangular element 7 having substantially the same length are arranged to slide along the two adjacent teeth 12, whereas the leg 14 having another length is arranged to slide along the gum 15.
  • the two legs 13 of substantially the same length are longer than the third leg 14 of the triangle to provide a better fit into the cavity 11.
  • the length of the third leg 14 may be in the range of 50-80% of length of the two legs 13 of substantially the same length.

Landscapes

  • Brushes (AREA)

Claims (15)

  1. Interdentalreiniger (1), umfassend ein Griffteil (2) und ein längliches Reinigungsteil (3), wobei sich das Reinigungsteil (3) in einer ersten Richtung von dem Griffteil (2) aus erstreckt und in einem freien Ende (4) endet,
    wobei das Griffteil (2) und das längliche Reinigungsteil (3) aus einem ersten Material gebildet sind,
    wobei ein Reinigungselement (5) umfangsmäßig um das Reinigungsteil (3) herum angeordnet ist und ein schraubenförmiges Muster (5A) bildet, wobei sich das schraubenförmige Muster (5A) durchgehend entlang mindestens eines Teils des Reinigungsteils (3) erstreckt und einen im Wesentlichen dreieckigen Querschnitt quer zu der ersten Richtung bildet, wobei das schraubenförmige Muster (5A) durch eine Vielzahl von miteinander verbundenen dreieckigen Elementen (7) gebildet wird, wobei mindestens eine Vielzahl der dreieckigen Elemente (7) als gleichschenkelige dreieckige Elemente gebildet ist, wobei zwei Schenkel (13) im Wesentlichen gleich lang und länger als ein dritter Schenkel (14) sind, wobei das Reinigungselement (5) aus einem zweiten Material gebildet ist, wobei das zweite Material flexibler als das erste Material ist, und
    wobei das Reinigungsteil (3) einen im Wesentlichen dreieckigen Querschnitt quer zu der ersten Richtung bildet.
  2. Interdentalreiniger (1) nach Anspruch 1, wobei sich das Reinigungselement (5) uneinheitlich von dem Reinigungsteil (3) aus erstreckt.
  3. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei die dreieckigen Elemente (7) die gleiche Form aufweisen.
  4. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei die Querschnittsform von mindestens einigen der dreieckigen Elemente (7) anders als ein dreieckiger Querschnitt des Reinigungsteils (3) ist.
  5. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei ein Zwischenraum des schraubenförmigen Musters (5A) mindestens entlang eines Teils des Reinigungsteils (3) in Richtung auf das freie Ende (4) abnimmt.
  6. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei eine Materialdicke des Reinigungselements (5) mindestens entlang eines Teils des Reinigungsteils (3) in Richtung auf das freie Ende (4) abnimmt.
  7. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei eine Materialdicke des Reinigungselements (5) von dem Reinigungsteil (3) aus in Richtung auf einen Randabschnitt des Reinigungselements (5) abnimmt.
  8. Interdentalreiniger (1) nach einem der Ansprüche 6 bis 7, wobei die Materialdicke des Reinigungselements (5) in dem Bereich von 0,05 bis 0,35 mm liegt.
  9. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei eine Querschnittsfläche des Reinigungselements (5) mindestens entlang eines Teils des Reinigungsteils (3) in Richtung auf das freie Ende (4) abnimmt.
  10. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei eine Höhe des Reinigungselements (5) mindestens entlang eines Teils des Reinigungsteils (3) in Richtung auf das freie Ende (4) abnimmt, wobei die Höhe als eine Abmessung des Reinigungselements (5) quer zu der ersten Richtung definiert ist.
  11. Interdentalreiniger (1) nach Anspruch 10, wobei die Höhe des Reinigungselements (5) in dem Bereich von 1,5 bis 4,0 mm liegt.
  12. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei das erste Material aus einer Gruppe ausgewählt wird, die aus Polypropylen, einer Polypropylen-Copolymer-Mischung mit Polyethylen hoher Dichte (HDPE), wie etwa biobasiertem HDPE, besteht, und/oder wobei das zweite Material aus einer Gruppe ausgewählt wird, die aus verschiedenen thermoplastischen Elastomeren besteht.
  13. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei das freie Ende (4) drei gekrümmte Spitzenränder bildet, wobei die Spitzenränder in Richtung auf das freie Ende (4) konvergieren.
  14. Interdentalreiniger (1) nach einem der vorhergehenden Ansprüche, wobei eine Abmessung des Reinigungsteils (3) quer zu der ersten Richtung mindestens entlang eines Teils des Reinigungsteils (3) in Richtung auf das freie Ende (4) abnimmt.
  15. Interdentalreiniger (1) nach Anspruch 14, wobei die Abmessung entlang eines ersten Teils des Reinigungsteils (3) abnimmt, und wobei die Abmessung einheitlich ist oder entlang eines zweiten Teils des Reinigungsteils (3) zunimmt, wobei das zweite Teil näher an dem freien Ende (4) ist als das erste Teil.
EP23731257.4A 2022-06-07 2023-06-07 Interdentalreiniger Active EP4536035B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22177498 2022-06-07
PCT/EP2023/065180 WO2023237582A1 (en) 2022-06-07 2023-06-07 An interdental cleaner

Publications (3)

Publication Number Publication Date
EP4536035A1 EP4536035A1 (de) 2025-04-16
EP4536035C0 EP4536035C0 (de) 2026-01-21
EP4536035B1 true EP4536035B1 (de) 2026-01-21

Family

ID=81975254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23731257.4A Active EP4536035B1 (de) 2022-06-07 2023-06-07 Interdentalreiniger

Country Status (3)

Country Link
EP (1) EP4536035B1 (de)
ES (1) ES3060410T3 (de)
WO (1) WO2023237582A1 (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US18653A (en) 1857-11-17 Worth
US5123841A (en) 1990-04-02 1992-06-23 Millner Don E Interproximal dental plaque remover
JPH06304218A (ja) 1993-04-26 1994-11-01 Chisuzu Nakamura 歯茎のマッサージ方法及び装置
US5775346A (en) * 1996-02-14 1998-07-07 Advanced Implant Technologies Inc. Interproximal dental appliances
ES2272479T3 (es) * 2000-07-20 2007-05-01 Esro Ag Pieza de tratamiento para un aparato para la limpieza interdental, procedimiento y dispositivo para su fabricacion.
WO2014054011A1 (en) * 2012-10-02 2014-04-10 Allan Coopersmith Dental device
IT202000015301A1 (it) * 2020-06-25 2021-12-25 Simone Picci Uno scovolino dentale con forma triangolare delle setole

Also Published As

Publication number Publication date
WO2023237582A1 (en) 2023-12-14
EP4536035C0 (de) 2026-01-21
ES3060410T3 (en) 2026-03-26
EP4536035A1 (de) 2025-04-16

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