US20110099737A1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US20110099737A1
US20110099737A1 US12/916,819 US91681910A US2011099737A1 US 20110099737 A1 US20110099737 A1 US 20110099737A1 US 91681910 A US91681910 A US 91681910A US 2011099737 A1 US2011099737 A1 US 2011099737A1
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United States
Prior art keywords
less
toothbrush
area
gap
head
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
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US12/916,819
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English (en)
Inventor
Siegfried Bauernfeind
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Braun GmbH
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Braun GmbH
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Priority to US12/916,819 priority Critical patent/US20110099737A1/en
Assigned to BRAUN GMBH reassignment BRAUN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Bauernfeind, Siegfried
Publication of US20110099737A1 publication Critical patent/US20110099737A1/en
Abandoned legal-status Critical Current

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    • 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
    • A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
    • 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
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/026—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups where the surface of the brush body or carrier is not in one plane, e.g. not flat
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • 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

Definitions

  • the present invention pertains to toothbrushes and particularly to toothbrushes having movable elements.
  • the Pulsar® toothbrush offers its users pivoting elements while other toothbrushes offer a movable carrier which carries a plurality of bristles.
  • these movable elements move with respect to a stationary element or a stationary portion of the toothbrush.
  • the movable element may move with respect to another movable element.
  • the tolerances or gap between the elements generally does not fluctuate, users may not have to be concerned about the device pinching soft tissue within the oral cavity.
  • the tolerances between the elements change, and in particular decrease, there is a possibility that the elements can increase the likelihood of pinching of soft tissue.
  • Toothbrushes constructed in accordance with the present invention may include elements which reduced the likelihood of pinching of the soft tissue of a user.
  • toothbrushes according to the present invention may include elements which reduce the amount of pressure applied to a user's soft tissue if pinching does occur.
  • a toothbrush according to the present invention comprises a handle, a head, and a neck extending between the handle and the head.
  • the head comprises a first portion and a second portion defining a gap of less than about 3.5 mm between a lower surface of the first portion and a top surface of the second portion.
  • Each of the first portion and the second portion comprising a plurality of cleaning elements.
  • a toothbrush in another embodiment, comprises a handle, a head, and a neck extending between the handle and the head.
  • the head comprises a first portion and a second portion.
  • Each of the first portion and the second portion comprising a plurality of cleaning elements, and the first portion being attached to the toothbrush at a distal end of the toothbrush.
  • the distal end being furthest from the handle, and the first portion having a free end disposed inboard of the distal end.
  • the free end being unattached to the toothbrush, and the second portion having a cross sectional area of between about 10 mm 2 to about 75 mm 2 .
  • FIG. 1 is a perspective view of a toothbrush constructed in accordance with the present invention showing axes and planes of the toothbrush.
  • FIG. 2 is a side view of a head portion of a toothbrush constructed in accordance with the present invention.
  • FIG. 3 is a cross sectional view of the head portion of the toothbrush shown in FIG. 2 from line 3 - 3 .
  • FIG. 4 is the cross sectional view of the head portion of the toothbrush shown in FIG. 2 from line 3 - 3 with the cleaning elements removed.
  • FIG. 5 is the cross sectional view of the head portion of FIG. 4 where a first portion overlaps a second portion of the head.
  • FIG. 6 is a cross sectional view showing another embodiment of a head portion constructed in accordance with the present invention.
  • FIG. 7 is a side view showing another embodiment of a head portion constructed in accordance with the present invention.
  • “Cleaning element carrier” refers to a structure upon which cleaning elements, massaging elements, and/or any suitable element for use in the oral cavity, etc., may be positioned.
  • the oral care device of the present invention can reduce the likelihood of the pinching of soft tissue and/or can reduce the level of discomfort associated with pinching of the soft tissue.
  • the oral care device of the present invention may be implemented in a manual toothbrush or a power toothbrush.
  • FIG. 1 is provided to show the general configuration of toothbrushes constructed in accordance with the present invention.
  • a toothbrush 2 comprises an elongated body 10 having a handle 30 , a head 50 , and a neck 40 extending between the handle 30 and the head 50 .
  • the head 50 comprises a first cleaning element carrier 60 and in some embodiments, may include additional cleaning element carriers, for example, a second cleaning element carrier 70 .
  • the cleaning element carriers 60 and/or 70 are disposed adjacent a distal end 52 of the toothbrush.
  • the distal end 52 is positioned away from the handle 30 .
  • a proximal end 54 of the toothbrush 2 is positioned opposite the distal end 52 away from the head 50 on the handle 30 .
  • An X axis is generally referred to herein as the longitudinal axis and generally extends along a longitudinal or lengthwise dimension (as seen from the top planar view of the toothbrush) of the head 50 or the cleaning element carrier.
  • a longitudinal axis is an axis passing through the longest dimension of the head 50 .
  • a Y axis is generally transverse, orthogonal or perpendicular to the X axis and generally bisects the toothbrush head 50 into its top and bottom portions.
  • a Z axis is generally transverse, orthogonal or perpendicular to both the X and Y axes and bisects the head 50 into its left and right halves.
  • the X axis will be referred to herein as the longitudinal axis
  • the Y axis will be referred to as the transverse axis
  • the Z axis will be referred to as the lateral axis.
  • axis orientations need not be exactly orthogonal or perpendicular to another axis and that some deviation from 90 degrees between the axes, particularly when these axes are used to describe a direction of motion. It should be understood that any axis orientation herein can be modified by the terms “generally” or “substantially” (e.g., “generally transverse” or “substantially transverse”). The word “substantially” implies some angular deviation, but not as much angular deviation from 90 degrees as the word “generally”. No modifier indicates slight to no deviation from 90 degrees.
  • a motion that is described as occurring along a first axis transverse to a second axis implies that the motion occurs at a 90 degree angle to the second axis with some slight deviation permitted (e.g., from manufacturing tolerances, etc.). If the motion is generally transverse or substantially transverse, a greater deviation from 90 degrees is contemplated. All the axes described herein can intersect another axis either generally or substantially transverse to said other axis.
  • Plane X contains the X axis and is generally referred to herein as the plane of the toothbrush or the plane of the toothbrush head. This plane generally extends along the longitudinal dimension of the toothbrush 2 .
  • the Y plane contains the Y axis and extends through the toothbrush 2 and is perpendicular to the X plane. The Y plane either bisects the toothbrush 2 or is parallel to a plane that does.
  • the Z plane is perpendicular to both the X plane and the Y plane and contains the Z axis.
  • a longitudinal direction is a direction that generally corresponds to a longitudinal or X axis but which may not lie in the same plane as the axis.
  • the longitudinal axes of a shaft and a cleaning element carrier may not extend in the same plane but generally extend in the same direction from a top planar view.
  • the neck 40 and head 50 that are angled with respect to each other may not have longitudinal axes that extend in the same plane, but do have axes that extend in the same general longitudinal direction from a top planar view.
  • the longitudinal axis of the head typically extends in the same general direction as the longitudinal axes of the toothbrush neck 40 .
  • the longitudinal axis of the head 30 is generally referred to as the longitudinal axis of the toothbrush. By the phrase “same general direction,” some angular deviation is contemplated between the axes.
  • a toothbrush 100 may comprise a cleaning element carrier 190 .
  • the cleaning element carrier 190 may comprise a first portion 195 and a second portion 197 .
  • the first portion 195 has an upper surface 195 A and a lower surface 195 B.
  • the second portion 197 has an upper surface 197 A and a lower surface 197 B.
  • Each of the first portion and the second portion comprise cleaning elements.
  • the first portion 195 and the second portion 197 define a gap 199 therebetween.
  • the gap 199 is defined by the maximum distance between the lower surface 195 B of the first portion 195 and the upper surface 197 A of the second portion 197 . As shown, the gap 199 may be in the transverse direction.
  • the gap 199 in an unloaded state (non-use), can be less than about 3.0 mm, less than about 2.5 mm, less than about 2.0 mm, less than about 1.5 mm, less than about 1 mm, less than about 0.75 mm, less than about 0.5 mm, less than about 0.45 mm, less than about 0.40 mm, less than about 0.35 mm, less than about 0.30 mm, less than about 0.25 mm, less than about 0.20 mm, less than about 0.15 mm, less than about 0.10 mm, less than about 0.05 mm, less than about 0.01 mm, and/or greater than about 0.01 mm, greater than about 0.05 mm, greater than about 0.1 mm, greater than about 0.25 mm, greater than about 0.30 mm, greater than about 0.5 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.5 mm, greater than about 2.0 mm, or greater than about 2.5 mm, or any range or individual value thereof.
  • the first portion 195 is flexible with respect to the second portion 197 . Reducing the gap 199 may be particularly beneficial where the first portion 195 is flexible with respect to the second portion 197 .
  • the gap 199 in an unloaded state (non-use) may be as described above. However, during loading the first portion 195 may flex, bend, rotate, pivot, and/or the like such that the gap 199 becomes smaller. In such instances, soft tissue may, if the gap 199 is not properly designed, enter into the gap 199 , and when a load is applied to the toothbrush 100 , the gap 199 can be reduced which can then cause discomfort to the user.
  • the first portion 195 may be attached to the toothbrush adjacent the distal end 52 (shown in FIG. 1 ).
  • the first portion 195 may extend inboard from the distal end 52 (shown in FIG. 1 ) toward the handle 10 (shown in FIG. 1 ).
  • the first portion 195 may comprise a free end 110 which is an inboard part of the first portion 195 .
  • the free end 110 may include the part of the first portion 195 which is unattached to the second portion 197 .
  • FIG. 3 A cross section of the first portion 195 and the second portion 197 is shown in FIG. 3 .
  • the first portion 195 includes side surfaces 330 A and 332 A. At an intersection 370 between the side surface 330 A and the upper surface 195 A or between side surface 332 A and upper surface 195 A generally should be rounded to provide the user comfort during use. However, a radius which is too large may encourage soft tissue to move toward the gap 199 (shown in FIG. 2 ).
  • a radius of the intersection 370 can be less than about 3.5 mm, less than about 3.0 mm, less than about 2.5 mm, less than about 2.0 mm, less than about 1.5 mm, less than about 1.0 mm, less than about 0.5 mm, less than about 0.3 mm, and/or greater than about 0.25 mm, greater than about 0.5 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.5 mm, greater than about 2.0 mm, greater than about 2.5 mm, or greater than about 3.0 mm and/or any ranges or individual values thereof.
  • the radius of the intersection may be between about 1.0 mm and 2.0 mm.
  • an intersection 372 between the side surface 330 A and the lower surface 195 B and/or between the side surface 332 A and the lower surface 195 B can have a smaller radius to discourage the entrance of soft tissue into the gap 199 (shown in FIG. 2 ).
  • the radius of the intersection 372 can be less than about 3 mm, less than about 2.5 mm, less than about 2 mm, less than about 1.75 mm, less than about 1.5 mm, less than about 1.25 mm, less than about 1.0 mm, less than about 0.75 mm, less than about 0.50 mm, less than about 0.25 mm, less than about 0.10 mm, less than about 0.05 mm, less than about 0.01 mm, and/or greater than about 0.01 mm, greater than about 0.05 mm, greater than about 0.10 mm, greater than about 0.25 mm, greater than about 0.50 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.25 mm, greater than about 1.5 mm, greater than about 1.75 mm, greater than about 2.0 mm, or greater than about 2.5 mm, or any range or individual number thereof.
  • the intersection 372 can be a right angle between the side surface 330 A and the lower surface 195 B.
  • the second portion 197 may include intersections designed in a similar fashion as those of the first portion 195 , e.g. 370 and 372 .
  • the second portion 197 may comprise a side surface 497 A which extends between the upper surface 197 A and the lower surface 197 B.
  • An intersection 320 between the upper surface 197 A and the side surface 497 A may have a radius which is designed similar to that of the intersection 372 between the side surface 330 A and the lower surface 195 B.
  • an intersection 322 between the lower surface 195 B and the side surface 497 A may have a radius which is designed similar to that of the intersection 370 between the side surface 330 A and the upper surface 195 A.
  • the first portion 195 may comprise a first area 130 and a second area 132 .
  • the first area 130 and the second area 132 may support a variety of cleaning elements. Suitable cleaning elements for use in any and all embodiments described herein, such as bristles made of polyamide and or any other suitable material and/or various elastomeric elements, are discussed hereafter.
  • the first area 130 and the second area 132 may define an opening 410 between the first area 130 and the second area 132 .
  • the cleaning elements 450 of the second portion 197 may extend through the opening 410 between the first area 130 and the second area 132 .
  • the second portion 197 may further comprise a protrusion 397 which extends toward the opening 410 .
  • the cleaning elements 450 of the second portion 197 may be mounted in the protrusion 397 .
  • the first area 130 and the second area 132 may be separated adjacent the free end 110 (shown in FIG. 2 ), in some embodiments.
  • the opening 410 may have a width which is the maximum distance between an interior side surface 330 B of the first area 130 and an interior side surface 332 B of the second part 132 .
  • the opening 410 may have a width greater than about 1 mm, greater than about 2 mm, greater than about 3 mm, greater than about 4 mm, greater than about 5 mm, greater than about 6 mm, greater than about 7 mm, greater than about 8 mm, greater than about 9 mm, greater than about 10 mm, greater than about 11 mm, greater than about 12 mm, and/or less than about 12 mm, less than about 11 mm, less than about 10 mm, less than about 9 mm, less than about 8 mm, less than about 5 mm, less than about 4 mm, less than about 3 mm, or less than about 2 mm, or any ranges or individual values thereof.
  • a second gap 499 between the first area 130 and the second portion 197 is shown in FIG. 4 .
  • the second gap 499 may be oriented in the lateral direction.
  • the second gap 499 is defined by the largest distance between the interior side surface 330 B and an outboard side surface 397 A of the protrusion 397 or the largest distance between the interior side surface 332 B and an outboard side surface 397 B.
  • the second gap 499 may be designed to reduce the likelihood of pinching by the toothbrush 100 .
  • the second gap 499 may be less than about 2.5 mm, less than about 2.0 mm, less than about 1.75 mm, less than about 1.5 mm, less than about 1.25 mm, less than about 1.0 mm, less than about 0.80 mm, less than about 0.5 mm, less than about 0.25 mm, less than about 0.1 mm, less than about 0.05 mm, and/or greater than about 0.05 mm, greater than about 0.1 mm, greater than about 0.25 mm, greater than about 0.50 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.25 mm, greater than about 1.50 mm, greater than about 1.75 mm, or greater than about 2.0 mm and/or any ranges or individual values thereof.
  • a similar gap may be provided between the interior side surface 332 B of the second area 132 and the outboard side surface 397 B of the protrusion 397 .
  • the second gap 499 should be designed to minimize the likelihood that soft tissue will enter the second gap 499 .
  • the second gap 499 may also be large enough to allow the protrusion 397 of the second portion 197 to pass between the first area 130 and the second area 132 as needed during brushing. Similar to the gap 199 (shown in FIG. 2 ), a smaller second gap 499 generally equates to a reduced likelihood of pinching of the soft tissue of the user.
  • the second portion 197 may comprise wings 460 and 462 .
  • the wings 460 and 462 may extend laterally outboard from a longitudinal axis of the toothbrush.
  • the wings 460 and 462 may increase the size of the contact surface between the first portion 195 and the second portion 197 .
  • the increased contact surface lowers the pressure applied to the user's soft tissue if pinching does occur.
  • the amount of overlap between the lower surface 195 B of the first portion 195 and the upper surface 197 A of the second portion may be a suitable percentage of the lower surface 195 B of the first portion 195 .
  • the overlap between the lower surface 195 B of the first portion 195 and the upper surface 197 A of the second portion 197 may be expressed as a percentage of the overall width of the first portion 195 in the lateral direction.
  • the overlap in some embodiments, may be greater than about 25 percent, greater than about 50 percent, greater than about 75 percent, greater than about 100 percent, greater than about 125 percent, greater than about 150 percent, greater than about 175 percent, greater than about 200 percent and/or less than about 200 percent, less than about 175 percent, less than about 150 percent, less than about 125 percent, less than about 110 percent, less than about 100 percent, less than about 75 percent, less than about 60 percent, less than about 50 percent, or less than about 40 percent and/or any range or individual number thereof.
  • the wing 460 overlaps the first area 130 by greater than about 0.05 mm, greater than about 0.1 mm, greater than about 0.25 mm, greater than about 0.5 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.25 mm, greater than about 1.5 mm, greater than about 1.75 mm, greater than about 2.0 mm, greater than about 2.25 mm, greater than about 2.5 mm, greater than about 2.75 mm, greater than about 3.0 mm, greater than about 3.5 mm, greater than about 4.0 mm, greater than about 4.5 mm, greater than about 5 mm, and/or less than about 5 mm, less than about 4.5 mm, less than about 4.0 mm, less than about 3.5 mm, less than about 3.0 mm, less than about 2.5 mm, less than about 2.0 mm, less than about 1.5 mm, less than about 1.0 mm, or any ranges or individual values thereof.
  • a larger overlap would help reduce the likelihood of pinching and reduce the pressure applied to soft tissue if pinching occurred, a larger overlap may also hinder brush performance.
  • a larger overlap e.g. larger wings 460 and 462 may cause some loss of maneuverability of the brush. Because of the increased wing size, the brush head would be larger overall and may cause some discomfort to the user and cause some loss of performance. As such, the overlap must be evaluated to ensure that a sufficient amount is provided to both reduce pressure applied in pinching situations and to allow maneuverability/comfort to the user.
  • the side surface 497 A and a side surface 497 B which are between the upper surface 197 A and lower surface 197 B of the second portion may be disposed laterally inboard of the side edges 330 A and/or 332 A of the first area 130 and second area 132 , respectively.
  • the side surface 497 A may be disposed laterally inboard of the side surface 330 A by greater than about 0.05 mm, greater than about 0.1 mm, greater than about 0.25 mm, greater than about 0.5 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.25 mm, greater than about 1.5 mm, greater than about 1.75 mm, greater than about 2.0 mm, greater than about 2.25 mm, greater than about 2.5 mm, greater than about 2.75 mm, greater than about 3.0 mm, and/or less than about 3.0 mm, less than about 2.75 mm, less than about 2.5 mm, less than about 2.25 mm, less than about 2.0 mm, less than about 1.75 mm, less than about 1.5 mm, less than about 1.25 mm, less than about 1.0 mm, less than bout 0.75 mm, less than about 0.5 mm, less than about 0.25 mm, less than about 0.1 mm, or any ranges or individual value thereof.
  • the protrusion 397 may not be required. However, in those embodiments having a protrusion 397 , the gap 199 may be configured such that the upper surface 197 A overlaps the lower surface 195 B of the first portion 195 as shown in FIG. 5 .
  • an overlap 530 in an unloaded state, can be greater than about 0.1 mm, greater than about 0.2 mm, greater than about 0.3 mm, greater than about 0.4 mm, greater than about 0.5 mm, greater than about 0.6 mm, greater than about 0.7 mm, greater than about 0.8 mm, greater than about 0.9 mm, greater than about 1.0 mm, greater than about 1.5 mm, greater than about 1.75 mm, greater than about 2.0 mm, greater than about 2.5 mm, greater than about 2.75 mm, greater than about 3.0 mm, greater than about 3.25 mm, greater than about 3.5 mm, greater than about 3.75 mm, greater than about 4.0 mm, greater than about 4.25 mm, greater 4.5 mm, greater 4.75 mm, greater than about 5 mm, and/or less than about 5 mm, less than about 4.75 mm, less than about 4.5 mm, less than about 4.25 mm, less than about 4.0 mm, less than about 3.75 mm, less than about 0.1 mm,
  • the interior side surfaces 330 B and 332 B and upper surface 195 A and lower surface 195 B may have appropriately designed intersections.
  • an intersection 620 between the upper surface 195 A and the interior side surface 330 B may be configured to provide comfort to the user.
  • the intersection 620 may have a radius which is similar to the intersection 370 (shown in FIG. 3 ) between the side surface 330 A and the upper surface 195 A.
  • an intersection 622 between the interior side surface 330 B and the lower surface 195 B may have a radius which is similar to the intersection 372 (shown in FIG. 3 ) between the side surface 330 A and the lower surface 195 B.
  • the second portion 197 may comprise convex portions 610 and 612 which are positioned laterally outboard of the protrusion 397 .
  • the convex portions 610 and 612 can discourage soft tissue from entering the second gap 499 (shown in FIG. 4 ).
  • the convex portions 610 , 612 may have any suitable shape.
  • the convex portions 610 , 612 may have a radius of greater than about 0.1 mm, greater than about 0.25 mm, greater than about 0.5 mm, greater than about 0.75 mm, greater than about 1.0 mm, greater than about 1.25 mm, greater than about 1.5 mm, greater than about 1.75 mm, greater than about 2.0 mm, greater than about 2.25 mm, greater than about 2.5 mm, greater than about 2.75 mm, greater than about 3.0 mm, greater than about 3.25 mm, greater than about 3.5 mm, greater than about 3.75 mm, greater than about 4.0 mm and/or less than about 4.0 mm, less than about 3.75 mm, less than about 3.5 mm, less than about 3.25 mm, less than about 3.0 mm, less than about 2.75 mm, less than about 2.5 mm, less than about 2.25 mm, less than about 2.0 mm, less than about 1.75 mm, less than about 1.5 mm, less than about 1.25 mm, less than about 1.0
  • the intersection 622 may be created as a complement to the convex portions 610 and 612 .
  • the intersection 622 may have a radius which is similar to that of the intersection 370 (shown in FIG. 3 ).
  • the radii 622 and that of the convex portions 610 , 612 may provide increased contact area such that reduced pressure is experienced by the user if pinching does occur.
  • the second portion 197 should be sized appropriately.
  • applied brushing pressure to the first portion 195 can induce a moment on the second portion 197 .
  • the first portion 195 and part of the second portion 197 could break off in the user's mouth.
  • the second portion in some embodiments, should have a cross sectional area of greater than about 10 mm 2 , greater than about 12 mm 2 , greater than about 15 mm 2 , greater than about 18 mm 2 , greater than about 20 mm 2 , greater than about 25 mm 2 , greater than about 30 mm 2 , greater than about 35 mm 2 , greater than about 40 mm 2 , greater than about 45 mm 2 , greater than about 50 mm 2 , greater than about 60 mm 2 , greater than about 65 mm 2 , greater than about 70 mm 2 , and/or less than about 70 mm 2 , less than about 65 mm 2 , less than about 60 mm 2 , less than about 55 mm 2 , less than about 50 mm 2 , less than about 45 mm 2 , less than about 40 mm 2 , less than about 35 mm 2 , less than about 30 mm 2 , less than about 25
  • the neck 40 and/or the second portion 197 may comprise a recess 740 .
  • the recess 740 can be configured such that the stress applied to the second portion 197 during brushing is concentrated in the recess 740 .
  • the concentration of the stress in the recess 740 may help prevent breakage.
  • the recess 740 may be filled with elastomer or any other suitable material. Other suitable stress concentrating mechanisms may be utilized.
  • the recess 740 may further comprise cuts, slits, the like, or combinations thereof. Embodiments are contemplated where the cuts, slits, the like, combinations thereof, are utilized independently of the recess 740 .
  • the first portion 195 and/or the second portion 197 may comprise a plurality of cleaning elements.
  • the cleaning elements of the present invention may comprise a wide variety of materials and may have a number of different configurations. Any suitable material and/or any suitable configuration may be utilized. Additionally, it should be noted that the cleaning elements may comprise any suitable cleaning element and/or may comprise elements which are utilized for massaging gums, cleaning the tongue, providing chemistry to an area of the oral cavity, e.g. antimicrobial agents, malodor agents, flavor agents, anti-plaque agents, anti-gingivitis agents, whitening agents, or the like.
  • the cleaning elements may comprise tufts.
  • the tufts may comprise a plurality of individual filaments which are securely attached to the first portion 195 and/or second portion 197 .
  • Such filaments may be polymeric and may include polyamide or polyester.
  • the longitudinal and cross sectional dimensions of the filaments of the invention and the profile of the filament ends can vary. Additionally, the stiffness, resiliency and shape of the filament end can vary. Some examples of suitable dimensions include a length between about 3 cm to about 6 cm, or any individual number within the range. Additionally, the filaments may include a substantially uniform cross-sectional dimension of between about 100 to about 350 microns, or any individual number within the range.
  • the tips of the filaments may be any suitable shape, examples of which include a smooth tip, a rounded tip, tapered tip, a pointed tip.
  • the filaments may include a dye which indicates wear of the filaments as described in U.S. Pat. No. 4,802,255.
  • suitable filaments for use with the brush of the present invention are described in U.S. Pat. No. 6,199,242.
  • bristles include textured bristles, e.g., single and multicomponent bristles (e.g., bristles formed by coextruding different polymers), crimped bristles, gum massaging bristles, bristles of varying configurations (e.g., bristles having multiple lumens), and/or combinations thereof.
  • textured bristles e.g., single and multicomponent bristles (e.g., bristles formed by coextruding different polymers), crimped bristles, gum massaging bristles, bristles of varying configurations (e.g., bristles having multiple lumens), and/or combinations thereof.
  • cleaning elements include those described in U.S. Patent Application Publication Numbers 2002/0059685; 2005/0000043; 2004/0177462; 2005/0060822; 2004/0154112; U.S. Pat. Nos. 6,151,745; 6,058,541; 6,041,467; 6,553,604; 6,564,416; 6,826,797; 6,993,804; 6,453,497; 6,993,804; 6,041,467; and U.S. patent application Ser. Nos. 12/008,073, filed on Jan.
  • the cleaning elements may also include, elastomeric structures, foams, combinations thereof, and the like.
  • the cleaning elements may comprise elastomeric fins as described in U.S. Pat. No. 6,553,604 and U.S. Patent Application Publication No. 2007/0251040A1.
  • the cleaning elements may comprise elastomeric cup shaped elements as described in U.S. Patent Publication No. 2004/0154112A1.
  • the cleaning elements may comprise a combination of elastomeric elements and bristles.
  • a combination of fins and bristle may be utilized, a combination of an elastomeric cup(s) and bristles may be utilized, and/or combinations of elastomeric elements either alone or in combination with bristles may be utilized.
  • Combinations of elastomeric cleaning elements are described in U.S. Patent Publication No. 2009/0007357A1.
  • the cleaning elements may be attached to the first portion 195 and/or the second portion 197 at an angle to the respective upper surfaces of the first portion 195 and the second portion 197 . Such orientations are described in U.S. Pat. No. 6,308,367. Also, any suitable method may be utilized to attach the tufts to the first portion 195 and/or the second portion 197 . Suitable methods include stapling, hot tufting, anchor free tufting, combinations thereof, and/or the like.
  • the first portion 195 and/or the second portion 197 may be constructed of any suitable material.
  • materials which can be utilized to construct the first portion 195 and/or the second portion 197 include a polyethylene (PE), polypropylene (PP), polyethyleneterapthalate (PET), acrylonitrile-butadiene-styrene (ABS), and styrene-acrylonitrile (SAN), PP and TPE blends, acetal (POM), nylon (PA), modified polyphenylene oxid (PPO), polyester (PBT), polycarbonate (PC), high impact polystyrene (HIPS), isoplast, (TPE) thermo plastic elastomers, and the like, and suitable combinations thereof.
  • PE polyethylene
  • PP polypropylene
  • PET polyethyleneterapthalate
  • ABS acrylonitrile-butadiene-styrene
  • SAN styrene-acrylonitrile
  • PP and TPE blends acetal (POM), nylon
  • the present invention may be utilized in manual toothbrushes where the cleaning motion is supplied completely by a user.
  • the present invention comprises a manual toothbrush which supplements the user's motions with a vibration device as described in U.S. Patent Application Publication No. 2003/0162145.
  • the present invention includes a power toothbrush.
  • a power toothbrush is one where the toothbrush provides the majority of the cleaning motion.
  • the user may manipulate the power toothbrush to ensure that the power toothbrush contacts the desired oral surfaces.
  • the cleaning elements, the first portion 195 and/or the second portion 197 may be driven in a variety of motions.
  • Some examples of such suitable motions are described in U.S. Patent Application Publication No. 2003/0084527.
  • the present invention includes a replaceable brush head for a power and/or a manual toothbrush.

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  • 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)
US12/916,819 2009-11-02 2010-11-01 Toothbrush Abandoned US20110099737A1 (en)

Priority Applications (1)

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US12/916,819 US20110099737A1 (en) 2009-11-02 2010-11-01 Toothbrush

Applications Claiming Priority (2)

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US25713809P 2009-11-02 2009-11-02
US12/916,819 US20110099737A1 (en) 2009-11-02 2010-11-01 Toothbrush

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US20110099737A1 true US20110099737A1 (en) 2011-05-05

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US (1) US20110099737A1 (pt)
EP (1) EP2496113B1 (pt)
CN (1) CN102595966B (pt)
BR (1) BR112012010327A2 (pt)
HK (1) HK1168516A1 (pt)
WO (1) WO2011051920A1 (pt)

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CN103607927A (zh) * 2011-06-15 2014-02-26 吉列公司 头部设有两个柔性翼部的口腔护理器械

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PL2512364T3 (pl) * 2009-12-15 2019-06-28 Braun Gmbh Sekcja do czyszczenia jamy ustnej
CN106723924A (zh) * 2016-12-30 2017-05-31 苏州麦垛信息科技有限公司 一种牙刷

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Also Published As

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WO2011051920A1 (en) 2011-05-05
CN102595966B (zh) 2016-07-06
EP2496113A1 (en) 2012-09-12
EP2496113B1 (en) 2023-05-10
CN102595966A (zh) 2012-07-18
HK1168516A1 (zh) 2013-01-04
BR112012010327A2 (pt) 2016-03-29

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