EP1470765B1 - Brosse interdentaire - Google Patents
Brosse interdentaire Download PDFInfo
- Publication number
- EP1470765B1 EP1470765B1 EP03405283A EP03405283A EP1470765B1 EP 1470765 B1 EP1470765 B1 EP 1470765B1 EP 03405283 A EP03405283 A EP 03405283A EP 03405283 A EP03405283 A EP 03405283A EP 1470765 B1 EP1470765 B1 EP 1470765B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- steel
- interdental brush
- wire sections
- wire
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B1/00—Brush bodies and bristles moulded as a unit
-
- 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
- A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
-
- 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
Definitions
- the invention relates to an interdental brush, in which filaments (or bristles) are held between two twisted wire sections, which consist of an austenitic steel. Furthermore, the invention relates to a method for producing such brushes.
- interdental brushes exist in the Essentially from two twisted thin pieces of wire, between which the bristles or synthetic filaments are clamped. Whereas previously the wire ends of the small brushes had to be inserted into a handle by the user (see US 4,222,143, Tarrson), modern interdental brushes have a plastic part which can be comfortably inserted in the handle (cf., for example, EP 0 001 044 A1, Georg; 0 203 082 B1, Curaden AG). Depending on the width of the interdental spaces large or small brushes are needed. There are therefore a number of brushes with different wire and bristle diameters.
- EP 0 892 625 B1, Curaden AG Systems are also already known which enable the patient to determine the correct interdental brush easily and quickly (cf., for example, EP 0 892 625 B1, Curaden AG).
- the use of special steels such as high strength austenitic steels allows for a thinner design of the wire.
- EP 0 800 781 A2 (Sunstar Inc.) describes, for example, a wire which is composed of 17-19% by weight of manganese,> 0.65% by weight of nitrogen, 17-19% by weight of chromium, 1.5-2.5% by weight.
- the object of the invention is to provide an interdental brush belonging to the technical field mentioned at the outset, which is stable even with a small diameter of the wire.
- the twisted wire sections consist of a nickel-free or nickel-poor steel, "nickel-free” or “nickel-poor” in the context of the invention designating a steel if the nickel content in the alloy is less than 0.05% by weight.
- Interdental brushes according to the invention are distinguished by increased rigidity and improved restoring force. If the brushes z. B. are introduced obliquely into the interdental space and abut or bend with the tip, then the twisted section will not deform so easily, or if it deforms, he is not so easily permanently deformed. Thus, the properties of particular thin brushes for the user can be significantly improved. In addition, the use of nickel-free wire increases the body compatibility of the brush without the need for any protective coatings.
- the wire used has a diameter of 0.15 mm or more. Practical tests have shown that it is possible to work well with 0.15 mm to 0.30 in the smallest interdental brushes customary today. Of course, thick wires make for more stable brushes than thin ones. Under certain circumstances, it is advantageous if the wires are not selected as thick as possible. Thinner wires result in more flexible brushes.
- a preferred wire diameter is in the range of 0.18 - 0.27 mm.
- the wire used preferably has a tensile strength of 1000 N / mm 2 or more. In most cases, the tensile strength does not have to be greater than 1200 N / mm2. Such wires not only provide a brush with a low risk of breakage, but also allow processing in high-speed and high-bending machines. If the strength is too high, processing may be difficult because the wires may break. It has surprisingly been found that the wires according to the invention can be processed even if they have a tensile strength of 1000 N / mm 2 and more. This is not the case with the nickel-containing wires.
- the wires are made of an austenite.
- the robustness of the filament carrier, which is formed by the twisted wires thus favorably influenced.
- the corrosion resistance ensures that long-stored or broken brushes (due to intervening corrosion) in use do not cause problems for the user.
- the stretching or twisting of the wires during processing in the brush production increases the tensile strength.
- the processed wires are somewhat stiffer compared to the raw state.
- filaments are introduced in a manner known per se between two wire sections and the wire sections are twisted with the filaments. According to the invention, however, it is not an ordinary nickel-containing wire but a nickel-free one that is used.
- the wire sections may be per se formed by the two halves of a single piece of wire. But they can also be realized with two separate wires.
- Fig. 1 shows how the wire sections 1a, 1b are twisted together.
- the filaments are not shown in FIG. 1. They are clamped between the two wire sections 1a, 1b. It is recognizable that the wire sections 1a, 1b are bent relatively strong. They form the filament carrier, so to speak.
- Fig. 2 shows a cross section through the filament support.
- the wire sections 1a, 1b have a certain diameter D. Between them, the filaments 2 are held.
- the diameter D is set so that, on the one hand, the filament support has a desired rigidity and, on the other hand, that the interdental brush is adapted to a certain degree of mobility.
- the mobility may be e.g. be determined by a probe, as it is known from the aforementioned EP 0 892 625 B1.
- both the diameter D and the width B and the wire material used (or its flexibility) are relevant for the mobility.
- Interdental brushes made of nickel-free steel (nickel-free in this context: nickel content below 0.05% by weight) of the following composition were successfully produced (rounded weights, impurities not mentioned): 17% by weight chrome 14% by weight manganese 2% by weight molybdenum 0.5% by weight nitrogen 0.25% by weight silicon 0.11% by weight carbon 0.04% by weight nickel 0.02% by weight phosphorus 0.006% by weight titanium rest iron
- the wire had a diameter of 0.23 mm and a tensile strength of at least 1100 N / mm 2 and at most 1300 N / mm 2. Further attempts were made with a wire made with 0.27 mm diameter and same alloy. The tensile strength was at least 1000 N / mm 2 and at most 1200 N / mm 2.
- the interdental brush fitted with the new wire holds under rotating bending a threefold more frequent load compared to the traditional brush. (In the so-called rotating bend, the plastic part is clamped and the tip of the brush is rotated circularly with a device.)
- the above alloy composition can be varied. Cr and Mn content may e.g. be changed by 3% by weight. If biocompatibility is particularly important, the Ni content is also preferably chosen to be lower.
- the invention provides an interdental brush with a small diameter of the filament carrier and consequently good mobility in the narrow interdental spaces. Even with fine wire diameters, a high degree of robustness of the interdental brush is achieved.
Landscapes
- Brushes (AREA)
Claims (19)
- Brosse interdentaire, dans laquelle sont maintenus des filaments entre deux tronçons de fils (1a, 1b) torsadés entre eux avec un diamètre (D) de 0,3 mm ou moins, les tronçons de fils (1a, 1b) consistant en un acier austénitique, caractérisée en ce que l'acier présente une teneur en nickel inférieure à 0,05 % en poids.
- Brosse interdentaire selon la revendication 1, caractérisée en ce que les tronçons des fils (1a, 1b) ont un diamètre (D) supérieur à 0,15 mm.
- Brosse interdentaire selon l'une des revendications 1 ou 2, caractérisée en ce que les tronçons de fils (1a, 1b) ont une résistance à la traction de 1000 N/mm2 ou davantage.
- Brosse interdentaire selon l'une des revendications 1 à 3, caractérisée en ce que les tronçons de fils (1a, 1b) ont une résistance à la traction de 1200 N/mm2 ou inférieure.
- Brosse interdentaire selon l'une des revendications 1 à 4, caractérisée en ce qu'il s'agit de tronçons de fils (1a, 1b) allongés ou étirés.
- Brosse interdentaire selon l'une des revendications 1 à 5, caractérisée en ce que l'acier comporte du manganèse, de l'azote, du carbone, du chrome, du molybdène, du silicium, du phosphore, du titane et du fer en tant que constituants d'alliage.
- Brosse interdentaire selon la revendication 6, caractérisée en ce que la teneur en molybdène de l'acier est de 2 % en poids.
- Brosse interdentaire selon l'une des revendications 6 ou 7, caractérisée en ce que la teneur en manganèse de l'acier est de 14 % en poids plus/moins 3 % en poids.
- Brosse interdentaire selon l'une des revendications 6 à 8, caractérisée en ce que la teneur en azote de l'acier est de 0,5 % en poids.
- Brosse interdentaire selon l'une des revendications 6 à 9, caractérisée en ce que la teneur en carbone de l'acier est de 0,11 % en poids.
- Brosse interdentaire selon l'une des revendications 6 à 10, caractérisée en ce que la teneur en chrome de l'acier est de 17 % en poids plus/moins 3 % en poids.
- Brosse interdentaire selon l'une des revendications 6 à 11, caractérisée en ce que la teneur en silicium de l'acier est de 0,25 % en poids.
- Brosse interdentaire selon l'une des revendications 6 à 12, caractérisée en ce que la teneur en phosphore de l'acier est de 0,02 % en poids.
- Brosse interdentaire selon l'une des revendications 6 à 13, caractérisée en ce que la teneur en titane de l'acier est de 0,006 % en poids.
- Procédé pour la fabrication d'une brosse interdentaire, dans laquelle sont incorporés des filaments (2) entre deux tronçons de fils (1a, 1b) en acier austénitique, et les tronçons de fils (1a, 1b) sont torsadés avec les filaments (2), caractérisé en ce que, pour les tronçons de fils (1a, 1b), on utilise un acier qui présente une teneur en nickel inférieure à 0,05 % en poids.
- Procédé selon la revendication 15, caractérisé en ce que la brosse est fabriquée à partir d'un tronçon de fil unique, le fil étant plié et allongé lors de l'usinage.
- Procédé selon l'une des revendications 15 ou 16, caractérisé en ce que l'acier utilisé présente 14 % en poids plus/moins 3 % en poids de manganèse, 0,5 % en poids d'azote, 0,11 % en poids de carbone, 17 % en poids plus/moins 3 % en poids de chrome, 2 % en poids de molybdène, 0,25 % en poids de silicium, 0,02 % en poids de phosphore, 0,006 % en poids de titane et de fer en tant que constituants d'alliage.
- Utilisation d'un fil en acier austénitique pour la fabrication d'une brosse interdentaire, l'acier comportant une teneur en nickel inférieure à 0,05 % en poids.
- Utilisation selon la revendication 18, caractérisée en ce que l'acier présente 14 % en poids plus/moins 3 % en poids de manganèse, 0,5 % en poids d'azote, 0,11 % en poids de carbone, 17 % en poids plus/moins 3 % en poids de chrome, 2 % en poids de molybdène, 0,25 % en poids de silicium, 0,02 % en poids de phosphore, 0,006 % en poids de titane et de fer en tant que constituants d'alliage.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT03405283T ATE345067T1 (de) | 2003-04-22 | 2003-04-22 | Interdentalbürste |
DE50305677T DE50305677D1 (de) | 2003-04-22 | 2003-04-22 | Interdentalbürste |
EP03405283A EP1470765B1 (fr) | 2003-04-22 | 2003-04-22 | Brosse interdentaire |
ES03405283T ES2275074T3 (es) | 2003-04-22 | 2003-04-22 | Cepillo interdental. |
US10/810,901 US20040211017A1 (en) | 2003-04-22 | 2004-03-29 | Interdental brush |
KR1020040022794A KR20040091545A (ko) | 2003-04-22 | 2004-04-02 | 치간 칫솔 |
JP2004151047A JP4692949B2 (ja) | 2003-04-22 | 2004-04-20 | 歯間ブラシ |
US13/238,829 US8356380B2 (en) | 2003-04-22 | 2011-09-21 | Interdental brush |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03405283A EP1470765B1 (fr) | 2003-04-22 | 2003-04-22 | Brosse interdentaire |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06005806 Division | 2006-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1470765A1 EP1470765A1 (fr) | 2004-10-27 |
EP1470765B1 true EP1470765B1 (fr) | 2006-11-15 |
Family
ID=32946982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405283A Expired - Lifetime EP1470765B1 (fr) | 2003-04-22 | 2003-04-22 | Brosse interdentaire |
Country Status (7)
Country | Link |
---|---|
US (2) | US20040211017A1 (fr) |
EP (1) | EP1470765B1 (fr) |
JP (1) | JP4692949B2 (fr) |
KR (1) | KR20040091545A (fr) |
AT (1) | ATE345067T1 (fr) |
DE (1) | DE50305677D1 (fr) |
ES (1) | ES2275074T3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD816999S1 (en) | 2017-03-06 | 2018-05-08 | Ranir, Llc | Toothbrush |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502007003776D1 (de) | 2007-10-24 | 2010-06-24 | Trisa Holding Ag | Interdentales Zahnreinigungsgerät |
US9220336B1 (en) | 2014-07-21 | 2015-12-29 | Jacqueline D Lewis | Brush apparatus for interproximal cleaning |
US11206918B2 (en) | 2018-03-25 | 2021-12-28 | Parallel Capture Holdings Inc. | Interdental brush with nylon yarn strands |
US20210289935A1 (en) * | 2018-07-11 | 2021-09-23 | Tepe Munhygienprodukter Ab | Interdental brush having an insertion guidance tip |
JP2020192275A (ja) * | 2019-05-30 | 2020-12-03 | デンタルプロ株式会社 | 歯間ブラシ |
EP4346504A1 (fr) | 2021-06-02 | 2024-04-10 | Curaden AG | Brosse interdentaire ayant une section transversale de fil ovale et son procédé de production |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7728103U1 (de) | 1977-09-10 | 1977-12-15 | Karl, Georg, 8802 Bechhofen | Zahnreinigungsgeraet |
US4222143A (en) * | 1979-03-16 | 1980-09-16 | John O. Butler Company | Interproximal brush handle |
CH663717A5 (de) | 1984-10-25 | 1988-01-15 | Curaden Ag | Vorrichtung zum reinigen der zahnzwischenraeume. |
DE9202508U1 (de) * | 1992-02-27 | 1992-04-09 | Georg Karl geka-brush GmbH, 8809 Bechhofen | Zahnreinigungsbürste |
JP2538533B2 (ja) * | 1994-02-21 | 1996-09-25 | ライオン株式会社 | 歯間ブラシ |
JPH08308637A (ja) * | 1995-05-19 | 1996-11-26 | Sunstar Inc | 歯間ブラシ用線材ならびに歯間ブラシ |
JPH09276044A (ja) * | 1996-04-09 | 1997-10-28 | Sunstar Inc | 歯間ブラシ用ワイヤー及び歯間ブラシ |
US5882584A (en) * | 1996-04-09 | 1999-03-16 | Sunstar, Inc. | Interdental brush wire and interdental brush |
JP3458627B2 (ja) * | 1996-11-22 | 2003-10-20 | サンスター株式会社 | 歯間ブラシ用ワイヤー及び歯間ブラシ |
AU2148197A (en) | 1996-04-10 | 1997-10-29 | Curaden Ag | Method of determining the approximal passability of an interdental space |
US6269514B1 (en) * | 1998-06-05 | 2001-08-07 | Du Pont | Monofilament bristle assemblies and methods of making brushes using same |
JP3597707B2 (ja) * | 1998-06-10 | 2004-12-08 | 日本精線株式会社 | ブラシ軸用線材と該線材を用いてなる歯間ブラシ製品 |
GB9922757D0 (en) | 1999-09-27 | 1999-11-24 | Heymark Metals Ltd | Improved steel composition |
-
2003
- 2003-04-22 ES ES03405283T patent/ES2275074T3/es not_active Expired - Lifetime
- 2003-04-22 DE DE50305677T patent/DE50305677D1/de not_active Expired - Lifetime
- 2003-04-22 EP EP03405283A patent/EP1470765B1/fr not_active Expired - Lifetime
- 2003-04-22 AT AT03405283T patent/ATE345067T1/de not_active IP Right Cessation
-
2004
- 2004-03-29 US US10/810,901 patent/US20040211017A1/en not_active Abandoned
- 2004-04-02 KR KR1020040022794A patent/KR20040091545A/ko not_active Application Discontinuation
- 2004-04-20 JP JP2004151047A patent/JP4692949B2/ja not_active Expired - Lifetime
-
2011
- 2011-09-21 US US13/238,829 patent/US8356380B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD816999S1 (en) | 2017-03-06 | 2018-05-08 | Ranir, Llc | Toothbrush |
Also Published As
Publication number | Publication date |
---|---|
US20120073071A1 (en) | 2012-03-29 |
EP1470765A1 (fr) | 2004-10-27 |
DE50305677D1 (de) | 2006-12-28 |
JP2004351204A (ja) | 2004-12-16 |
ATE345067T1 (de) | 2006-12-15 |
US8356380B2 (en) | 2013-01-22 |
KR20040091545A (ko) | 2004-10-28 |
JP4692949B2 (ja) | 2011-06-01 |
ES2275074T3 (es) | 2007-06-01 |
US20040211017A1 (en) | 2004-10-28 |
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