US20040211017A1 - Interdental brush - Google Patents

Interdental brush Download PDF

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Publication number
US20040211017A1
US20040211017A1 US10/810,901 US81090104A US2004211017A1 US 20040211017 A1 US20040211017 A1 US 20040211017A1 US 81090104 A US81090104 A US 81090104A US 2004211017 A1 US2004211017 A1 US 2004211017A1
Authority
US
United States
Prior art keywords
wire sections
interdental brush
wire
brush according
nickel
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.)
Abandoned
Application number
US10/810,901
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English (en)
Inventor
Ueli Breitschmid
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.)
Curaden International AG
Original Assignee
Curaden International AG
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 Curaden International AG filed Critical Curaden International AG
Assigned to CURADEN INTERNATIONAL AG reassignment CURADEN INTERNATIONAL AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BREITSCHMID, UELI
Publication of US20040211017A1 publication Critical patent/US20040211017A1/en
Priority to US13/238,829 priority Critical patent/US8356380B2/en
Abandoned legal-status Critical Current

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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 retained between wire sections which are twisted with one another.
  • the invention also relates to a method for producing such brushes.
  • interdental brushes essentially comprise two thin, twisted pieces of wire between which the bristles or synthetic filaments are firmly clamped. Whereas the wire ends of the small brushes formerly had to be inserted into a handle by the user (see U.S. Pat. No. 4,222,143, Tarrson), modern interdental brushes have a plastic part which can easily be inserted in the handle (see, for example, EP 0 001 044 A1, Georg; EP 0 203 082 B1, Curaden A G). Large or small brushes are required depending on the width of the spaces between the teeth. There is thus a series of brushes with different wire and bristle diameters. Systems which allow the patient to determine the correct interdental brush easily and quickly are also already known (see, for example, EP 0 892 625 B1, Curaden A G).
  • the object of the invention is to provide an interdental brush which belongs to the technical field mentioned in the introduction and is stable even if the wire has a small diameter.
  • the twisted wire sections have a diameter of 0.3 mm or less and consist of a nickel-free or low-nickel steel.
  • Nickel-free or low-nickel in the context of the invention, refers to a steel in which the nickel content in the alloy is less than 0.05% by weight.
  • Interdental brushes according to the invention are distinguished by an increased level of rigidity and an improved restoring force. If the brushes, during use, are introduced, for example, obliquely into the space between the teeth and strike against something with the tips or bend, then the twisted section will not deform so easily or, if it deforms, it is not so easily subjected to permanent deformation. The properties of thin brushes in particular may thus be noticeably improved for the user. Using nickel-free wire, in addition, increases the biocompatibility of the brush, without any protective coatings being necessary.
  • the wire used preferably has a diameter of 0.15 mm or more. This is because practical tests have shown that the smallest interdental brushes which are customary nowadays, and have a diameter of 0.15 mm to 0.30 mm, can be used to good effect. Thick wires obviously result in more stable brushes than thin ones. In some circumstances, however, it is advantageous if the wires are not selected to be 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 need not be greater than 1200 N/mm 2 . Such wires do not just result in a brush with a low risk of breakage; they also allow processing in high-speed machines which provide for pronounced bending. In the case of excessive strength, processing may be rendered more difficult because the wires may break. Surprisingly, it has 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 nickel-containing wires.
  • the wires it is preferable, but not absolutely necessary, for the wires to consist of an austenite. Tests have shown that the robustness of the filament carrier, which is formed by the twisted wires, is favourably influenced as a result. In addition, the corrosion resistance ensures that brushes which have been kept in storage, or are left lying around, for a long period of time do not result in problems for the user during use (on account of corrosion having occurred in the meantime).
  • filaments are introduced between two wire sections and the wire sections are twisted with the filaments.
  • the wire used is a nickel-free one rather than a conventional nickel-containing one.
  • the wire sections may be formed in fact by the two halves of a single piece of wire. It is also possible for them, however, to be realized by two separate wires.
  • FIG. 1 shows a schematic illustration of the twisted wire
  • FIG. 2 shows a schematic illustration of a cross section.
  • FIG. 1 shows how the wire sections 1 a, 1 b are twisted with one another.
  • the filaments are not depicted in FIG. 1. They are firmly clamped between the two wire sections 1 a, 1 b. It can be seen that the wire sections 1 a, 1 b are bent to a relatively pronounced extent. They form the filament carrier more or less.
  • FIG. 2 shows a cross section through the filament carrier.
  • the wire sections 1 a, 1 b have a certain diameter D.
  • the filaments 2 are retained between them.
  • Their diameter D is defined such that, on the one hand, the filament carrier has a desired level of rigidity and that, on the other hand, the interdental brush is adapted to a certain degree of freedom of movement.
  • the degree of freedom of movement may be determined, for example, by a probe, as is known from EP 0 892 625 B1, which was mentioned in the introduction.
  • the diameter D and the width B and the wire material used (and/or the flexibility thereof) are relevant for the freedom of movement.
  • Interdental brushes made of a nickel-free steel (nickel-free, in this context, means a nickel content of below 0.05% by weight) of the following composition were produced successfully (weight measurements rounded off; impurities not mentioned): 17% by weight chromium 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 Remainder iron
  • the wire had a diameter of 0.23 mm and a tensile strength of at least 1100 N/mm 2 and not more than 1300 N/mm 2 . Further tests were carried out with a wire having a diameter of 0.27 mm and consisting of the same alloy. The tensile strength was at least 1000 N/mm 2 and not more than 1200 N/mm 2 .
  • the interdental brush provided with the new wire withstands three times more frequent loading under rotary bending than the traditional brush. (In the case of the so-called rotary bending, the plastic part is clamped in and a device rotates the tip of the brush in a circle.)
  • the content of Cr and Mn may each be changed, for example, by 3% by weight. If the biocompatibility is particularly important, the content of Ni is preferably also selected to be lower.
  • the invention provides an interdental brush with a small filament-carrier diameter and, consequently, good freedom of movement in the narrow spaces between the teeth. Even in the case of fine wire diameters, the interdental brush is highly robust.

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  • Brushes (AREA)
US10/810,901 2003-04-22 2004-03-29 Interdental brush Abandoned US20040211017A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/238,829 US8356380B2 (en) 2003-04-22 2011-09-21 Interdental brush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03405283A EP1470765B1 (fr) 2003-04-22 2003-04-22 Brosse interdentaire
EP03405283.7 2003-04-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/238,829 Continuation US8356380B2 (en) 2003-04-22 2011-09-21 Interdental brush

Publications (1)

Publication Number Publication Date
US20040211017A1 true US20040211017A1 (en) 2004-10-28

Family

ID=32946982

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/810,901 Abandoned US20040211017A1 (en) 2003-04-22 2004-03-29 Interdental brush
US13/238,829 Expired - Lifetime US8356380B2 (en) 2003-04-22 2011-09-21 Interdental brush

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13/238,829 Expired - Lifetime US8356380B2 (en) 2003-04-22 2011-09-21 Interdental brush

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112822961A (zh) * 2018-07-11 2021-05-18 Tepe口腔卫生产品公司 具有插入引导端头的牙间刷

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2052695B1 (fr) 2007-10-24 2010-05-12 Trisa Holding AG Appareil de nettoyage de interdentaire
US9220336B1 (en) 2014-07-21 2015-12-29 Jacqueline D Lewis Brush apparatus for interproximal cleaning
USD816999S1 (en) 2017-03-06 2018-05-08 Ranir, Llc Toothbrush
US11206918B2 (en) 2018-03-25 2021-12-28 Parallel Capture Holdings Inc. Interdental brush with nylon yarn strands
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222143A (en) * 1979-03-16 1980-09-16 John O. Butler Company Interproximal brush handle
US5355547A (en) * 1992-02-27 1994-10-18 Georg Karl Geka-Brush Gmbh Dental cleaning brush
US5882584A (en) * 1996-04-09 1999-03-16 Sunstar, Inc. Interdental brush wire and interdental brush
US6434778B1 (en) * 1998-06-05 2002-08-20 E. I. Du Pont De Nemours And Company Monofilament bristle assemblies and methods of making brushes using same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7728103U1 (de) 1977-09-10 1977-12-15 Karl, Georg, 8802 Bechhofen Zahnreinigungsgeraet
CH663717A5 (de) 1984-10-25 1988-01-15 Curaden Ag Vorrichtung zum reinigen der zahnzwischenraeume.
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
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
WO1997037612A1 (fr) 1996-04-10 1997-10-16 Curaden Ag Procede permettant de determiner l'accessibilite proximale d'un espace interdentaire
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222143A (en) * 1979-03-16 1980-09-16 John O. Butler Company Interproximal brush handle
US5355547A (en) * 1992-02-27 1994-10-18 Georg Karl Geka-Brush Gmbh Dental cleaning brush
US5882584A (en) * 1996-04-09 1999-03-16 Sunstar, Inc. Interdental brush wire and interdental brush
US6434778B1 (en) * 1998-06-05 2002-08-20 E. I. Du Pont De Nemours And Company Monofilament bristle assemblies and methods of making brushes using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112822961A (zh) * 2018-07-11 2021-05-18 Tepe口腔卫生产品公司 具有插入引导端头的牙间刷

Also Published As

Publication number Publication date
EP1470765B1 (fr) 2006-11-15
ATE345067T1 (de) 2006-12-15
US20120073071A1 (en) 2012-03-29
JP4692949B2 (ja) 2011-06-01
KR20040091545A (ko) 2004-10-28
JP2004351204A (ja) 2004-12-16
DE50305677D1 (de) 2006-12-28
EP1470765A1 (fr) 2004-10-27
US8356380B2 (en) 2013-01-22
ES2275074T3 (es) 2007-06-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CURADEN INTERNATIONAL AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BREITSCHMID, UELI;REEL/FRAME:015159/0369

Effective date: 20040308

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION