EP1773155A1 - Brosse a dents (brosse neka) - Google Patents

Brosse a dents (brosse neka)

Info

Publication number
EP1773155A1
EP1773155A1 EP05761062A EP05761062A EP1773155A1 EP 1773155 A1 EP1773155 A1 EP 1773155A1 EP 05761062 A EP05761062 A EP 05761062A EP 05761062 A EP05761062 A EP 05761062A EP 1773155 A1 EP1773155 A1 EP 1773155A1
Authority
EP
European Patent Office
Prior art keywords
elongate
bristles
brush unit
end portion
elongate extension
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Withdrawn
Application number
EP05761062A
Other languages
German (de)
English (en)
Other versions
EP1773155A4 (fr
Inventor
Kazem Vafaeian
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1773155A1 publication Critical patent/EP1773155A1/fr
Publication of EP1773155A4 publication Critical patent/EP1773155A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3436—Rotation around the axis perpendicular to the plane defined by the bristle holder
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/24—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
    • A61C17/26—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
    • A61C17/28—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor with rinsing means
    • 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
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/225—Handles or details thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/36—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with rinsing means

Definitions

  • the present invention relates to a toothbrush device for brushing teeth.
  • the toothbrush device comprises a handle having an electric motor disposed therein, an elongate extension in operative engagement with the electric motor, an end portion attached to the elongate extension, and a brush unit attached to the end portion.
  • Toothbrushes with odd shapes and customized bristles have been used in an attempt to improve the brushing effectiveness of the toothbrush. Both manual and electrical brushes have been used.
  • the conventional toothbrushes fail to effectively reach the areas between teeth and the sensitive areas between the gum and the teeth particularly in the corners and along the critical lines of the teeth and the gum.
  • the use of dental floss is cumbersome and it is difficult to reach all the areas especially the teeth in the rear that are prone to bacteria attacks. As a result, it is common to suffer from gum disease and cavities despite regular tooth brushing. Unclean teeth and gums may also lead to unpleasant breath.
  • the toothbrush device of the present invention provides a solution to the above-outlined problems. More particularly, the toothbrush device of the present invention thus comprises a handle having an electric motor disposed therein. An elongate extension is in operative engagement with the electric motor. An end portion is attached to the elongate extension. A brush unit is attached to the end portion. The brush unit has bristles attached at an inner end to an elongate rotatable member with end portions at said inner ends of the bristles directed in a substantially radial direction outwards from the periphery of the rotatable member. The elongate rotatable member is in rotatable engagement with the elongate extension The bristles can be soft or stiff.
  • the brush unit is rotatable in clockwise direction and in counter clockwise direction and is movable back and forth by the user's hand movement so that traces of the bristles on the tooth and the gum may follow a spiral path.
  • a mechanism can be provided at the output from the electric motor for transforming the rotational movement of the electric motor to a rotational oscillatory movement of the shaft.
  • the frequency of said rotational oscillatory movement is preferably within the range of 50 - 60 Hz. For children it could be an advantage to have a toothbrush device with the brush unit all the time rotating in one and the same direction, whereas in other cases a rotatable oscillatory brush unit could be more effective.
  • a shock absorber is mounted on the shaft inside the elongate extension. In this way damages on the driving shaft and the electric motor is avoided if the brush unit is clamped up from rotating. Also damages on teeth and gum can be prevented.
  • the elongate extension is bendable, preferably in the range of 15-20° , in a plane perpendicular to the jaw to be brushed. This facilitates for the user to reach different spaces between the teeth and different parts of the surfaces of the teeth.
  • the end portion comprises a stationary cover to protect the lips of the user from contact with moving parts of the end portion when entering the brush unit into the mouth.
  • the tip of the rotatable member is coated by a soft material, like elastic plastics. Both these embodiments make the use of the toothbrush device more comfortably. It is often experienced as unpleasant if the rotating brush unit is touching the lips and gum and teeth enamel can be damaged by the tip of the rotatable member, which is made of a solid material. Both these inconveniences are eliminated by the measures mentioned.
  • said elongate extension is provided with a flushing channel for cleaning the interior of the elongate extension by flushing water. Rests of tartar and other deposits removed from the teeth as well as saliva can penetrate into the elongate extension. For avoiding disturbances in the functioning of the device and for hygienic reasons a flushing channel is therefore provided for cleaning the interior of the elongate extension.
  • the invention also relates to a brush unit for a toothbrush device as described above or for mounting to a handle for forming a manual toothbrush device.
  • the bristles of the brush unit are attached at their inner ends to the periphery of an elongate member with end portions of said bristles at the inner ends directed in a substantially radial direction outwards from the periphery of the elongate member.
  • Fig. 1 is a side view of the toothbrush device of the present invention
  • Fig. 2 is a schematic top view of the area between two adjacent teeth
  • Fig. 3 is a side view of the brush unit of the present invention.
  • Fig. 4 is a front view of the brush unit shown in Fig. 3 during rotation of the brush unit;
  • Fig. 5 is a side view of an alternative embodiment of the toothbrush of the present invention.
  • Fig. 6 is a side view of the area between two adjacent teeth, as shown in Fig. 2;
  • Fig. 7 is a side and a front view of the elongate extension.
  • the toothbrush device 10 of the present invention has a water tight handle 12 that includes an electric motor 14 for rotating a brush unit 30 in a left and right manner with a frequency of typically 50-60 times per second or hertz.
  • the handle 12 has an on/off button 16 and a connection 18 for charging a battery 20 disposed inside the handle 12.
  • An upper end of the handle 12 has a connection 22 for operatively connecting the motor 14 to an elongate extension 24.
  • This extension can be flexible or stiff.
  • a flexible extension can be bendable in a plane perpendicular to the jaw, preferably an angle within the range of 15-20°.
  • the motor 14 produces rotational or oscillatory- movements that are equivalent to about 50-60 rotations or oscillations per second.
  • the motor 14 could simply rotate the brush unit in an eternal circular manner also for simpler brushing e.g. for children.
  • the button 16 on the handle is pushed to an on-position and for stopping the movement the button 16 is pushed to its off- position.
  • the button 16 has also a third position, in which the button 16 is movable between an on- and an off-state, the button 16 being spring biased towards the off-state.
  • the brush unit is rotated only when the button 16 is held in the on-state while overcoming the spring force.
  • the elongate extension 24 is replaceable and has an end portion 26 with a stationary cover 75, which end portion is perpendicular to the elongate extension 24 and converts the rotational oscillatory movement from the extension 24 to the brush unit 30.
  • the end portion 26 has an opening 28 defined therein for receiving the brush unit 30.
  • the end portion 26 has an engagement unit 31 for engaging and releasing the brush unit 30 when it is necessary to replace the brush unit.
  • the elongate extension 24 can be bendable relative to the handle 12 so that the end portion 26 may be turned, as mentioned above. This makes it easier to adjust the reach in different directions within the mouth of the user.
  • the elongate extension 24 can be rigid.
  • the cover 75 is stationary to prevent the moving brush unit 30 to touch the lips of the user when entering the brush unit 30 into the mouth. Contact between the moving brush unit 30 and lips is often experienced as unpleasant by the user.
  • the end portion 26 and the cover 75 has a cylindrical shape.
  • the end portion and the cover can, however, alternatively have a conical or semi-conical shape with the brush unit mounted at the tip or the smaller end surface of the cone.
  • An embodiment with a semi-conical end portion 26 with associated cover 75 is shown to the right in figure 1.
  • a rotating or oscillating shaft 76 is extending from the electric motor 14 to the end portion 26 for driving the brush unit 30 from the electric motor 14.
  • a rotating or oscillating shaft 76 is extending from the electric motor 14 to the end portion 26 for driving the brush unit 30 from the electric motor 14.
  • this shaft 76 is flexible.
  • a shock absorbing means or a shock absorber 77 is provided on the shaft 76 to stop the movement of the brush unit 30 if it is clamped up between two teeth. In this way damages to the shaft 76 and the electric motor 14 is avoided if the brush unit 30 is clamped up, and also damages to gum and possibly teeth are prevented.
  • the part of the upper surface 78 in figure 1 of the handle 12, situated outside the elongate extension 24, is inclined in the direction away from the elongate extension 24 to drain water and possible other liquids.
  • An indicator lamp 79 is provided on the inclined surface 78 indicating when the device is in operation.
  • a timer (not shown in the figures) is provided to control the indicator lamp 79 to start flashing after a predetermined time of operation of the device, thus indicating that the brushing has been going on for this predetermined time.
  • Fig. 2 is a schematic top view of two adjacent teeth 42 and 44 with a gap 46 therebetween that has a gum area 48.
  • the tooth 42 has a front side 50 and corner lines 52, 54 and gum contact area or critical line 56 at a bottom of the front side 50.
  • the tooth 42 also has an outside 58, inside 60 and upper side and chewing face 62.
  • the other teeth have similar areas and only the tooth 42 is described in detail as an illustrative example.
  • the size of the gap 46 is exaggerated to more clearly show the various details thereof.
  • Fig. 3 an embodiment is shown with the brush unit 30 having a plurality of soft bristles 32 and stiff bristles 32 respectively.
  • the soft bristles 32 are soft enough for hanging down when exposed to gravitational forces.
  • the bristles are attached at inner ends to an elongate member 33, preferably along a major part of the length of the elongate rotatable member with the inner end portions of the bristles 32 directed in a substantially radial direction outwards from the periphery of the rotatable member 33.
  • Bristles 32 can be provided over a length of the rotating member of typically 5 - 15 millimeters.
  • the soft bristles 32 can be soft enough for hanging down from the elongate member 33 with all the outer ends 35 disposed below the elongate member 33, when the elongate member is in a horizontal position.
  • all the bristles have the same length so that the brush unit 30 is cylindrical in shape when rotating or oscillating.
  • the bristles adjacent an outer end 37 have substantially the same length as the bristles adjacent to the connection end 34 of the rotating member 33.
  • the bristles may have a length of about 0.2 -4.0 millimeters or any other suitable length.
  • the connection end 34 of the rotating member is inserted into the opening 28 of the end portion 26 to connect the brush unit 30 to the rest of the device 10.
  • the length of the rotating member 33 outside the opening 28 can be varied by inserting a longer or short part of the connection end 34 into a coupling device for connection to the shaft 76.
  • the tip of the rotating member 33 is coated by a soft material 37, e.g. elastic plastics, to avoid prick damages to the gum and possible on the teeth.
  • Fig. 4 shows a front view of the brush unit 30 when it is performing a rotational oscillatory movement of about 50 - 60° in each direction.
  • This means the bristles are first rotated 50 - 60° in a first rotational direction 36 and then rotated 50-60° degrees in a second rotational direction 38 that is opposite the first direction 36.
  • the rotation angle can, however, have any suitable avue between 50 and 180°. Due to the centrifugal forces the bristles flare out and form a circular shape 39. In an embodiment where the bristles 32 are soft enough, the bristles adjust their shape and conform to the shape of the teeth surfaces.
  • Fig. 6 is side view between the teeth 42, 44 that shows the bristle 32 bent to a perpendicular shape to perfectly conform to the shape of the gum 48 and the tooth side 50 to reach the critical line 56.
  • Fig. 6 is side view between the teeth 42, 44 that shows the bristle 32 bent to a perpendicular shape to perfectly conform to the shape of the gum 48 and the tooth side 50 to reach the critical line 56.
  • the user may put some suitable additives such as a fluoride containing toothpaste on the bristles 32 and insert the brush unit 30.
  • the user may then turn on the motor 14 by pushing the on/off button 16 so that the bristles 32 are rotated left and right according to the directions 36, 38.
  • the bristles have substantially the same length and are soft, the user may easily insert the brush unit 30 through the gap 46 so that corner lines 52, 54 are also cleaned. In this way, the bristles reach and brushes even very hard to reach areas around the teeth.
  • Fig. 5 shows an example of a manual brush unit 70 that has the brush unit 30 removably attached to a handle 72 for mechanical brushing without the aid of an electric motor.
  • Fig. 6 shows how a bristle 32 reaches a hard to reach area between two adjacent teeth, see especially the critical line 56, and conforms to the shape of the tooth side to clean the tooth and this area. The cleaning becomes very efficient by the rotational oscillatory movement of the bristles combined with a manual back and forth movement, in and out of the mouth.
  • Fig 7 shows a part of a flexible elongate extension
  • the elongate extension 24 is bendable by an angle of typically 15 - 20° in a plane perpendicular to the jaw. In this manner gaps 46 between the teeth 44 can be easily reached by the brush unit 30.
  • a shaft 76 is provided inside the elongate extension 24 for transmitting rotational or oscillatory movements from the motor 14 to the end portion 26 and the brush unit 30.
  • a shock absorber 77 is mounted on the shaft for protecting both the device and the user's gum and teeth from damages, as explained above.
  • the electric motor 14 is preferably driven by a rechargeable battery 20, a connection for charging the battery being indicated at 18 in figure 1. While the present invention has been described in accordance with preferred compositions and embodiments, it is to be understood that certain substitutions and alterations may be made thereto without departing from the spirit and scope of the following claims.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

Cette invention concerne une brosse à dents (10) comportant un manche (12) contenant un moteur électrique (14). Un prolongement allongé (24) est en contact opérationnel avec le moteur électrique (14). Une partie d'extrémité (26) est fixée au prolongement allongé (24). Une unité brosse (30) est fixée à la partie d'extrémité (26). L'unité brosse (30) comporte des poils (32) fixés à un élément rotatif allongé (33). Les poils (32) sont fixés au niveau d'extrémités internes à la périphérie de l'élément rotatif allongé (33), les parties d'extrémité des poils (32) au niveau de ces extrémités internes étant orientées dans une direction substantiellement radiale vers l'extérieur depuis la périphérie de cet élément rotatif allongé (33). L'unité brosse peut également être montée sur un manche pour former une brosse à dents manuelle.
EP05761062.8A 2004-07-23 2005-07-21 Brosse a dents (brosse neka) Withdrawn EP1773155A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52193904P 2004-07-23 2004-07-23
PCT/SE2005/001174 WO2006009513A1 (fr) 2004-07-23 2005-07-21 Brosse a dents (brosse neka)

Publications (2)

Publication Number Publication Date
EP1773155A1 true EP1773155A1 (fr) 2007-04-18
EP1773155A4 EP1773155A4 (fr) 2014-03-12

Family

ID=35785511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05761062.8A Withdrawn EP1773155A4 (fr) 2004-07-23 2005-07-21 Brosse a dents (brosse neka)

Country Status (2)

Country Link
EP (1) EP1773155A4 (fr)
WO (1) WO2006009513A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111358588B (zh) * 2020-03-21 2021-10-01 中国人民解放军联勤保障部队第九〇四医院 一种口腔清洗装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118852A2 (fr) * 1983-03-14 1984-09-19 George C. Collis Brosse à dents pourvue de soies courbées
WO1990009206A2 (fr) * 1989-02-20 1990-08-23 Solar Wide Industrial Ltd. Appareil dentaire
WO1992008418A1 (fr) * 1990-11-20 1992-05-29 Bernard Weissman Dispositif dentaire a pile a deux positions
WO1994002047A1 (fr) * 1992-07-15 1994-02-03 Braun Aktiengesellschaft Support de brosse a dents
WO1996031171A1 (fr) * 1995-04-01 1996-10-10 Braun Aktiengesellschaft Brosse pour brosse a dents electrique
WO1997043924A1 (fr) * 1996-05-21 1997-11-27 Hcare Limited Brosse a dents
WO1998001083A1 (fr) * 1996-07-10 1998-01-15 Braun Aktiengesellschaft Brosse a dents electrique
WO1998016169A1 (fr) * 1996-10-15 1998-04-23 Coronet-Werke Gmbh Nettoyeur interdentaire et mode de fabrication
WO1999018883A1 (fr) * 1997-10-09 1999-04-22 Robinson Dane Q Dispositif de nettoyage par fil dentaire
WO2003011073A1 (fr) * 2001-07-30 2003-02-13 Atsushi Takahashi Dispositif electrique de nettoyage oral a angle universel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301865C2 (de) * 1983-01-21 1985-09-26 Mirz, Horst, 8070 Ingolstadt Elektrische Zahnbürste
DE3332247A1 (de) * 1983-09-07 1985-03-21 Rudolf 7803 Gundelfingen Kuth Zahnbuerste
WO1993005679A1 (fr) * 1991-09-16 1993-04-01 Braun Aktiengesellschaft Brosse a dents
AU2441692A (en) * 1992-08-04 1994-03-03 Vincenzo De Cicco Power-driven rotary toothbrush
IT1309497B1 (it) * 1999-10-14 2002-01-23 Gianluca Bagattini Spazzolino elettrico da denti a superficie pulitrice sferico-cilindrica rotante secondo versi invertibili.
JP2004024805A (ja) * 2002-06-27 2004-01-29 Lozenstar Corp 電動歯ブラシ

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118852A2 (fr) * 1983-03-14 1984-09-19 George C. Collis Brosse à dents pourvue de soies courbées
WO1990009206A2 (fr) * 1989-02-20 1990-08-23 Solar Wide Industrial Ltd. Appareil dentaire
WO1992008418A1 (fr) * 1990-11-20 1992-05-29 Bernard Weissman Dispositif dentaire a pile a deux positions
WO1994002047A1 (fr) * 1992-07-15 1994-02-03 Braun Aktiengesellschaft Support de brosse a dents
WO1996031171A1 (fr) * 1995-04-01 1996-10-10 Braun Aktiengesellschaft Brosse pour brosse a dents electrique
WO1997043924A1 (fr) * 1996-05-21 1997-11-27 Hcare Limited Brosse a dents
WO1998001083A1 (fr) * 1996-07-10 1998-01-15 Braun Aktiengesellschaft Brosse a dents electrique
WO1998016169A1 (fr) * 1996-10-15 1998-04-23 Coronet-Werke Gmbh Nettoyeur interdentaire et mode de fabrication
WO1999018883A1 (fr) * 1997-10-09 1999-04-22 Robinson Dane Q Dispositif de nettoyage par fil dentaire
WO2003011073A1 (fr) * 2001-07-30 2003-02-13 Atsushi Takahashi Dispositif electrique de nettoyage oral a angle universel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006009513A1 *

Also Published As

Publication number Publication date
WO2006009513A1 (fr) 2006-01-26
EP1773155A4 (fr) 2014-03-12

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