EP2517601A1 - Corps de brosse et brosse à dents - Google Patents
Corps de brosse et brosse à dents Download PDFInfo
- Publication number
- EP2517601A1 EP2517601A1 EP10839357A EP10839357A EP2517601A1 EP 2517601 A1 EP2517601 A1 EP 2517601A1 EP 10839357 A EP10839357 A EP 10839357A EP 10839357 A EP10839357 A EP 10839357A EP 2517601 A1 EP2517601 A1 EP 2517601A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bristle
- core
- brush body
- oral cavity
- electrode
- 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.)
- Withdrawn
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
- A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
- A46B15/0022—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with an electrical means
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- 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
Definitions
- the present invention relates to toothbrushes for oral care provided with an energizing function and to brush bodies used for such toothbrushes.
- toothbrushes for oral care provided with an energizing function have been proposed in the prior art.
- patent documents 1 to 3 listed below disclose toothbrushes that generate chlorine, which has a sterilization effect, from chloride ions included in an oral cavity fluid, such as saliva.
- the toothbrush of patent document 1 includes a first electrode, which is arranged proximal to a brush head where bristles (brush bristles) are embedded, and a second electrode, which is arranged in a grip of the toothbrush.
- the first electrode, the second electrode, the human body, and the oral cavity fluid form an electric circuit that generates chlorine through electrolysis of the oral cavity fluid near the first electrode of the brush head.
- the toothbrushes illustrated in patent documents 2 and 3 each include first and second electrodes that are both arranged in a brush head where bristles (brush bristles) are embedded. During use of the toothbrush, an electric circuit formed in the oral cavity between the first and second electrodes generates chlorine through electrolysis of the oral cavity fluid near the first electrode of the brush head.
- Fig. 7 of patent document 1 discloses another example in which the bristles are partially used as electrodes.
- Paragraph 0033 of patent document 2 and paragraph 0041 of patent document 3 describe further examples in which the bristles are entirely used as electrodes.
- Patent document 4 illustrates a toothbrush using parts of bristles as electrodes in the same manner as the structure shown in Fig. 7 of patent document 1.
- Each bristle has a double-layer structure including a conductive core and an insulative sheath.
- the electrodes of the bristles in patent document 4 detect plaque.
- Patent document 5 discloses a toothbrush that energizes the oral cavity through a conductive body arranged in a brush head, which supports bristles, to perform sterilization and promote blood circulation in the gum.
- Patent document 6 discloses an ion toothbrush including a conductive member partially exposed through a window in the brush head and having an electric effect that weakens the bonding of teeth surface and plaque to facilitate the removal of plaque.
- Patent document 7 discloses an electronic toothbrush that supplies pulse current to bristles in order to draw fluorine ions into the teeth surface.
- the electrode may not be sufficiently immersed in oral cavity fluid, which forms part of the electric circuit, and the generation of chlorine may become insufficient. Further, the electrode of the brush head is separated from periodontal pockets. Thus, chlorine cannot be directly supplied to the periodontal pockets, and effective sterilization of the periodontal pockets cannot be performed.
- the bristles be used as the electrode like patent document 6 and the further examples of patent documents 1 to 3.
- the bristles are entirely used as electrodes.
- the bristles entirely diffuse current to the entire oral cavity through the oral cavity fluid.
- the odor of the large amount of generated chlorine becomes a problem.
- sufficient chlorine may not be locally supplied to the periodontal pockets.
- each bristle functions as the electrode.
- each bristle is relatively thin.
- the exposed area of the flat distal end surface is insufficient for electrolysis, and sufficient chlorine may not be generated.
- each bristle is used to detect plaque.
- the electrode is not suitable for being energized for oral care.
- the toothbrushes of patent documents 5 and 6 include electrodes in the brush heads and that have the same problem as patent documents 1 to 3.
- the object of the electronic toothbrush of patent document 7 is to supply fluorine ions to the teeth surface and is not intended for locally energizing periodontal pockets. Rather, in the case of the electronic toothbrush of patent document 7, it is preferable that the entire surface of each bristle function as an electrode so that contact occurs more frequently with the teeth surface.
- the present invention solves the above problems. It is an object of the present invention to provide a brush body and a toothbrush that selectively performs localized energizing for oral care at gaps in the oral cavity such as periodontal pockets.
- the plurality of bristle bundles includes a bristle that includes a core, which is formed by a conductive member, and a sheath, which covers the core and is formed by an insulative member.
- the core projects from the sheath at a tip portion of the bristle and functions as an electrode that energizes an oral cavity.
- a portion inserted into the oral cavity is at least partially covered by the insulative member.
- the brush body includes a front surface on which the bristle bundles are embedded and a rear surface opposite to the front surface.
- the insulative member covers at least the rear surface.
- the portion inserted into the oral cavity excluding the tip portion of the bristle is covered by an insulative member.
- the tip portion of the bristle has a pointed shape, and at least part of the pointed shape is formed by the core.
- the tip portion of the bristle has a semispherical shape, and at least part of the semispherical shape is formed by the core.
- the sheath of the bristle is formed by a material having a lower hardness than a material that forms the core.
- the electrode generates chlorine having a sterilization effect through electrolysis of oral cavity fluid that is proximal to the electrode.
- a further aspect of the present disclosure provides a toothbrush including the brush body of the first aspect and an energizing means for supplying the electrode of the bristle with current for local energizing.
- the toothbrush includes an oscillation actuator that oscillates the brush head, on which the bristle bundles are embedded.
- the present invention provides a brush body and toothbrush that selectively performs localized energizing for oral care at gaps in the oral cavity such as periodontal pockets.
- a toothbrush 10 of the present invention includes a main body, or grip 11, which can be held by a user, and a brush body 21, which can be attached in a removable manner to a distal portion of the grip 11.
- the brush body 21 includes a brush stem 22 and a brush head 23. Bristle bundles 24 are embedded on the brush head 23.
- An oscillation actuator 13 in the grip 11 drives and oscillates the brush head 23 in an axial direction (longitudinal direction) to electrically perform brushing or the like.
- the brush stem 22 and the brush head 23 may also be referred to as insulative members.
- the grip 11 of the toothbrush 10 may be generally cylindrical so that it is easy to hold.
- the grip 11 has an outer surface including a grip electrode 12, which comes into contact with the user who is holding the grip 11, and a switch (not shown).
- the oscillation actuator 13, a battery 14, which is formed by a rechargeable battery or a primary battery, and a control circuit (circuit substrate) 15, which controls the supply of power from the battery 14 to the oscillation actuator 13 based on the operation of the switch, are arranged in the grip 11.
- the oscillation actuator 13 includes an output shaft 13a, which projects out of the distal portion of the grip 11.
- the brush body 21 (basal portion of the brush stem 22) is attached to cover the projected output shaft 13a.
- the brush head 23 of the brush body 21 includes the bristle bundles 24 to remove plaque and the like.
- Each bristle bundle 24 includes a basal portion fixed to the brush head 23.
- filaments or bristles 25 are bundled.
- Each bundle is folded in a U-shaped manner so as to sandwich a metal holding plate 26. The folded portion of each bundle and the holding plate 26 are pressed together into brush head 23 to fix or embed the bristle bundles 24 to the brush head 23.
- each bristle 25 has a double-layer structure including a core 25x, which is formed from a flexible conductive resin (for example, polyamide resin containing carbon or polybutylene terephthalate resin containing carbon), and a sheath 25y, which covers the core 25x and is formed from a flexible insulative resin (for example, polyamide resin that does not contain carbon or polybutylene terephthalate resin that does not contain carbon).
- the insulative resin forming the sheath 25y and the conductive resin forming the core 25x are both flexible materials (elastic materials). It is preferable that the resin forming the sheath 25y have a lower hardness than the resin forming the core 25x.
- Each bristle 25 includes a generally conical or pointed tip portion 25a.
- the tip portion 25a is formed by the core 25x that projects from the sheath 25y.
- the core 25x includes a generally conical or pointed distal end that is not covered by the sheath 25y.
- the projected length of the bristle 25 from the brush head 23 is preferable set to about 10 mm or greater, for example, about 20mm.
- the length of the generally conical or pointed portion is set to about 2 mm
- the diameter of each bristle 25 is set to about 0.2 mm
- the thickness of the sheath 25y is set to about 0.06 mm.
- the core 25x is illustrated with a slightly exaggerated diameter. The dimensions are not limited in the above-described manner.
- each of the bristles 25 is electrically connected by the metal holding plate 26 to a conductive base 27 in the brush head 23.
- the base 27 is formed by a conductive resin
- the brush head 23, excluding the base 27, and the brush stem 22 are formed from an insulative resin.
- the conductive base 27 is electrically connected to the output shaft 13a of the oscillation actuator 13 by a connection terminal 28 that is arranged extending along the brush stem 22. This electrically connects the core 25x of each bristle 25 to the control circuit 15 via the holding plate 26, the base 27, the connection terminal 28, and the output shaft 13a.
- the grip electrode 12 of the grip 11 is also connected to the control circuit 15.
- the core 25x of each bristle 25 functions as a first electrode
- the grip electrode 12 functions as a second electrode.
- the oscillation actuator 13 drives and oscillates the brush head 23. This improves the brushing capability and produces a massaging effect on the gum.
- the control circuit 15 applies a DC voltage of, for example, 15 V. Based on the applied voltage, the tip portion 25a of the bristle 25 performs local energizing for oral care with the oral cavity fluid around the core 25x.
- the brush body 21 can perform concentrated oral care at gaps in the oral cavity.
- the shape of the projection of the core 25x increases the energizing area and thus ensures sufficient energizing area for local energizing.
- the conductive portion is only the core 25x at the tip portion 25a, and other parts of the brush body 21 excluding the core 25x at the tip portion 25a are covered by the insulative members. Thus, unnecessary current diffusion is prevented, and current can be concentrated at the core 25x of the tip portion 25a.
- the brush body 21 achieves these effects at the same time and can thus selectively perform local energizing for oral care in at least gaps in the oral cavity.
- An energizing means of the toothbrush 10 includes, in particular, the control circuit 15 and the core 25x.
- the present embodiment has the characteristic advantages described below.
- the cores 25x in the tip portion 25a directly contact the teeth surface and the gum.
- the brush body 21 can separately and locally energize various portions in the oral cavity such as the teeth surface and the gum. Accordingly, the brush body 21 selectively obtains a desirable oral care effect for the user at portions in the oral cavity intended by the user.
- the oral care effect of the local energizing achieves one or more, preferably, all of sterilization, blood circulation promotion of the gum, the drawing of ions into the teeth surface, and the promotion of plaque removal.
- the bristles 25 (bristle bundles 24) embedded in the brush head 23 all have a double-layer structure of an electrode, or the core 25x, and the sheath 25y.
- Such bristles 25, which include electrodes, may be selectively used for only predetermined bristle bundles 24 or be selectively used as predetermined bristles 24 in a bristle bundle 24.
- the entire brush body 21 excluding the tip portions 25a of the bristles 25 is covered by insulative members.
- the brush head 23 and the brush stem 22 may partially be covered by insulative members to prevent unnecessary current diffusion.
- the brush body 21 includes a front surface (also referred to as brush surface), on which the bristle bundles 24 are embedded, and a rear surface, which is opposite to the front surface.
- the rear surface is covered by a rear surface coating 21y, which is formed from an insulative resin.
- the rear surface of the brush body 21 is apt to coming into contact with the wall surface of the oral cavity during use.
- the rear surface coating 21y which is an insulative member, unnecessary current diffusion may be prevented in a preferable manner while decreasing the area and used amount of the insulative member. This also contributes to increasing the efficiency of local energizing.
- the shape of the base 27, which is formed from conductive resin and connected to the bristle bundles 24, is enlarged.
- the tip portion 25a of each bristle 25 has a pointed shape, and the core 25x projects from the sheath 25y.
- the shape of the tip portion 25a of the bristle 25 may be changed as required.
- the tip portion 25a of the bristle 25 may be semispherical, and the core 25x may project from the sheath 25y. This softens contact of the tip portion 25a of the bristle 25 with the gum or the like and lessens the stimuli during use.
- the core 25x projecting from the sheath 25y may simply be cylindrical.
- the sheath 25y of the bristle 25 has a lower hardness than the core 25x but is not limited in such a manner.
- the sheath 25y and the core 25x may have about the same hardness.
- the bristle bundles 24 are folded in a U-shaped manner so as to sandwich the metal holding plates 26.
- basal ends of the bristle bundles 24 may be embedded in the brush head 23 without bending the bristle bundles 24 (without using the holding plates 26).
- saliva is illustrated as one example of oral cavity fluid.
- the oral cavity fluid may be a solution other than saliva such as a solution including chloride ions or an oral cavity care solution.
- the electrode may generate chlorine, which has a sterilization effect, through electrolysis of the oral cavity fluid near the electrode.
- the brush body 21 is supported so that it can be attached in a removable manner to the grip 11.
- the brush body 21 may be formed integrally with the grip 11.
- the oscillation actuator 13 may be eliminated.
Landscapes
- Brushes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009290467 | 2009-12-22 | ||
PCT/JP2010/072918 WO2011078127A1 (fr) | 2009-12-22 | 2010-12-20 | Corps de brosse et brosse à dents |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2517601A1 true EP2517601A1 (fr) | 2012-10-31 |
Family
ID=44195653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10839357A Withdrawn EP2517601A1 (fr) | 2009-12-22 | 2010-12-20 | Corps de brosse et brosse à dents |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120233791A1 (fr) |
EP (1) | EP2517601A1 (fr) |
JP (1) | JPWO2011078127A1 (fr) |
CN (1) | CN102791166A (fr) |
WO (1) | WO2011078127A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3915515A1 (fr) * | 2020-05-28 | 2021-12-01 | Koninklijke Philips N.V. | Unité de nettoyage et/ou de traitement pour un dispositif de nettoyage et/ou de traitement bucco-dentaire |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013118895A (ja) * | 2011-12-06 | 2013-06-17 | Lion Corp | 口腔内用イオンブラシ |
BR112016012422B1 (pt) * | 2013-12-12 | 2021-11-03 | Colgate-Palmolive Company | Cerda de múltiplos componentes que tem componentes com diferentes aditivos para cuidado oral e implemento para cuidado oral que compreende os mesmos |
US10499725B2 (en) * | 2014-07-31 | 2019-12-10 | Geka Gmbh | Applicator with bristles of particle-filled plastic |
MX2018000271A (es) * | 2015-07-07 | 2018-04-11 | Colgate Palmolive Co | Implemento de cuidado oral y cerda monofilamento para usar con este. |
EP3397112B1 (fr) | 2015-12-28 | 2020-03-04 | Colgate-Palmolive Company | Brosse à distribution de fluide |
US20190380482A1 (en) * | 2016-12-01 | 2019-12-19 | Koninklijke Philips N.V. | Oral care device and attachment |
CN110868890A (zh) * | 2017-07-12 | 2020-03-06 | 皇家飞利浦有限公司 | 刷头布置 |
DE102017120902A1 (de) * | 2017-09-11 | 2019-03-14 | Cinogy Gmbh | Plasma-Behandlungsgerät |
CN110292454A (zh) * | 2019-08-06 | 2019-10-01 | 深圳市欣点通科技有限公司 | 一种多功能电动牙刷 |
US11618126B2 (en) * | 2019-08-30 | 2023-04-04 | Taiwan Semiconductor Manufacturing Company Limited | Polishing pad conditioning apparatus |
US11812845B2 (en) | 2020-06-15 | 2023-11-14 | Church & Dwight Co., Inc. | Ionic toothbrush |
CN112336489A (zh) * | 2020-11-11 | 2021-02-09 | 慈溪赛嘉电子有限公司 | 电力牙刷装置 |
EP4018881A1 (fr) | 2020-12-22 | 2022-06-29 | Koninklijke Philips N.V. | Unité de nettoyage et/ou de traitement pour un dispositif de soins oraux |
KR102628014B1 (ko) * | 2021-09-08 | 2024-01-23 | 주식회사 프록시헬스케어 | 전기 칫솔 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US4010308A (en) * | 1953-05-04 | 1977-03-01 | Wiczer Sol B | Filled porous coated fiber |
JPS6045362A (ja) | 1983-08-23 | 1985-03-11 | 井元 太郎 | 電気歯ブラシ |
JPS61196636U (fr) * | 1985-05-31 | 1986-12-08 | ||
CN87101867A (zh) * | 1987-03-09 | 1988-09-21 | 王龄 | 电离子口腔治疗微电器 |
JPH0690824A (ja) | 1992-03-31 | 1994-04-05 | Shiken:Kk | 電動歯ブラシ |
CN1102562A (zh) * | 1993-11-11 | 1995-05-17 | 史淳茂 | 一种电离子、磁疗牙刷及使用方法 |
JPH0824050A (ja) * | 1994-07-13 | 1996-01-30 | Nippon Tungsten Co Ltd | 歯ブラシ |
JPH09140453A (ja) * | 1995-09-21 | 1997-06-03 | Sangi Co Ltd | 電子イオン歯ブラシ |
DE19605845A1 (de) * | 1996-02-16 | 1997-08-21 | Lingner & Fischer Gmbh | Vorrichtung und Verfahren zum Nachweis von Zahnbelägen |
JP3909446B2 (ja) * | 1996-10-25 | 2007-04-25 | 生田 稔郎 | 磁気イオン歯ブラシ |
JPH10192055A (ja) * | 1997-01-06 | 1998-07-28 | Kitano Seisaku Kk | 電子歯ブラシ |
RU2170051C2 (ru) * | 1998-09-08 | 2001-07-10 | Общество с ограниченной ответственностью "Габитус" | Электрофоретическая зубная щетка "habitus" |
AU7956500A (en) * | 1999-10-26 | 2001-05-08 | Eroica Corporation | Toothbrush |
JP2001309820A (ja) | 2000-04-28 | 2001-11-06 | Fukuba Dental Kk | イオン歯ブラシ |
JP2004121327A (ja) * | 2002-09-30 | 2004-04-22 | Keitouuwai Project:Kk | トリートメントプローブ |
JP4372537B2 (ja) * | 2003-12-26 | 2009-11-25 | ライオン株式会社 | 口腔清掃用具 |
JP4642422B2 (ja) | 2004-10-05 | 2011-03-02 | ライオン株式会社 | 口腔清掃用具 |
JP2006180953A (ja) | 2004-12-27 | 2006-07-13 | Lion Corp | 電動歯刷子 |
JP2006223369A (ja) | 2005-02-15 | 2006-08-31 | Matsushita Electric Works Ltd | 電子歯ブラシ |
US8156602B2 (en) * | 2005-10-14 | 2012-04-17 | Colgate-Palmolive Company | Generating a chemical agent in situ |
JP2008154757A (ja) * | 2006-12-22 | 2008-07-10 | Matsushita Electric Works Ltd | 電子口腔清掃器 |
CN101569461A (zh) * | 2008-04-29 | 2009-11-04 | 高浪 | 新型牙刷 |
JP2010124904A (ja) * | 2008-11-25 | 2010-06-10 | Panasonic Electric Works Co Ltd | 口腔ケア装置 |
CN201341577Y (zh) * | 2008-12-24 | 2009-11-11 | 侯智勋 | 多功能牙擦 |
-
2010
- 2010-12-20 CN CN2010800552238A patent/CN102791166A/zh active Pending
- 2010-12-20 EP EP10839357A patent/EP2517601A1/fr not_active Withdrawn
- 2010-12-20 WO PCT/JP2010/072918 patent/WO2011078127A1/fr active Application Filing
- 2010-12-20 JP JP2011547543A patent/JPWO2011078127A1/ja not_active Ceased
- 2010-12-20 US US13/512,899 patent/US20120233791A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011078127A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3915515A1 (fr) * | 2020-05-28 | 2021-12-01 | Koninklijke Philips N.V. | Unité de nettoyage et/ou de traitement pour un dispositif de nettoyage et/ou de traitement bucco-dentaire |
WO2021239556A1 (fr) * | 2020-05-28 | 2021-12-02 | Koninklijke Philips N.V. | Unité de nettoyage et/ou de traitement pour un dispositif de nettoyage et/ou de traitement buccal |
Also Published As
Publication number | Publication date |
---|---|
CN102791166A (zh) | 2012-11-21 |
US20120233791A1 (en) | 2012-09-20 |
JPWO2011078127A1 (ja) | 2013-05-09 |
WO2011078127A1 (fr) | 2011-06-30 |
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