TOOTHBRUSHING SYSTEM FOR SPECIALIZED CLEANING
A tooth brushing system comprising a toothbrush head including a base defining a basal plane, a long axis and a short axis; and a multiplicity of bristles arranged in a plurality of bristle groups which may each have individual characteristics such as length and stiffness matching the differential anatomies of the various portions of the teeth, the base comprising a respective plurality of planar base portions, respectively supporting the plurality of bristle groups, wherein the planar base portions are configured to see-saw above and below the basal plane. Preferably, the handle is configured to retain a toothpaste-filled cartridge and the handle has at least one operative orientation in which the cartridge retained thereby is arranged to permit toothpaste to be dispensed onto the head. Optionally, a stabilizer is provided having at least one operative orientation in which it is fixedly associated with the head, the stabilizer being configured and arranged to roll along occlusal surfaces of teeth. Preferably, the head is designed to rotate about its short axis while the handle remains motionless. Preferably, the handle is designed to swivel about its long axis while the head remains motionless.
This application claims benefit of U.S. Provisional Application No. 60/808,949, filed May 20, 2006 (which is hereby incorporated by reference).
FIELD OF THE INVENTIONThe present invention relates generally to tooth brushing systems.
BACKGROUND OF THE INVENTIONGreat Britain Patent GB412414 to Vachoux describes a toothbrush comprising two spring-supported parts carrying bristles which independently oscillate in a plane perpendicular to the brush's longitudinal axis. Pressure on a blade spring causes conformation to the interior or exterior curvature of the jaw.
European Patent EP1386589 describes a toothbrush having sets of bristles movable relative to one another such that at least one component of this relative movement causes bristles of the first set to be raised and/or lowered relative to bristles in the second set.
U.S. Pat. No. 5,284,168 describes a tooth cleaning device including a cartridge unit insertable in the gap between the jaws to serve as a tooth cleaning implement.
U.S. Pat. No. 5,351,358 describes a toothbrush having two orthogonally disposed brush heads.
U.S. Pat. No. 2,214,407 describes a three-part toothbrush head.
European Patent EP1486137 describes a toothbrush having bristle groups carried by separate segments on the brush head and a method for manufacturing this type of brush.
The disclosures of all publications mentioned in the specifications, and of the publications cited therein directly or indirectly, are hereby incorporated by reference.
SUMMARY OF THE INVENTIONThe present invention seeks to provide an improved toothbrush.
There is thus provided, in accordance with a preferred embodiment of the present invention, a tooth brushing system comprising a toothbrush head including a base defining a basal plane, a long axis and a short axis; and a multiplicity of bristles arranged in a plurality of bristle groups, the base comprising a respective plurality of planar base portions, respectively supporting the plurality of bristle groups, wherein the planar base portions are configured to see-saw above and below the basal plane.
Further in accordance with a preferred embodiment of the present invention, the planar base portions include at least one first pair of planar base portions configured to see-saw above and below the basal plane about a first pivot axis; and at least one second pair of planar base portions configured to see-saw above and below the basal plane about a second pivot axis.
Still further in accordance with a preferred embodiment of the present invention, the base defines first and second long sides which are parallel to the long axis and the lengths of the multiplicity of bristles generally increases from the first long side to the second long side.
Further in accordance with a preferred embodiment of the present invention, the base defines first and second long sides which are parallel to the long axis and wherein the softness of the multiplicity of bristles generally increases from the first long side to the second long side.
Additionally in accordance with a preferred embodiment of the present invention, the tooth brushing system also comprises a handle configured and arranged to support the head in first and second selectable orientations, wherein the first orientation is rotated 180 degrees around the head's short axis, relative to the second orientation.
Further in accordance with a preferred embodiment of the present invention, the handle comprises a swivel-mounted head support.
Still further in accordance with a preferred embodiment of the present invention, the planar base portions remain parallel to the basal plane while see-sawing above and below the basal plane.
Also in accordance with another preferred embodiment of the present invention, is a tooth brushing system comprising a pair of friction-creating elements including a first friction-creating element operative to apply pressure on and receive pressure from teeth and a second friction-creating element constructed and arranged relative to the first friction-creating element, to engage a space between teeth in reaction to the pressure of the teeth on the first friction-creating element.
Further in accordance with a preferred embodiment of the present invention, at least one of the friction-creating elements comprises at least one group of bristles.
Further provided, in accordance with still another preferred embodiment of the present invention, is a toothbrush comprising a handle configured to retain a toothpaste-filled cartridge; and a head mounted at one end of the handle, wherein the handle has at least one operative orientation in which the cartridge retained thereby is arranged to permit toothpaste to be dispensed onto the head.
Further in accordance with a preferred embodiment of the present invention, the first pivot axis is parallel to the short axis and the second pivot axis is parallel to the long axis.
Also provided, in accordance with another preferred embodiment of the present invention, is a toothbrush system comprising a handle; a head atop the handle; and a stabilizer attached to the head and being configured and arranged to roll along occlusal surfaces of teeth, thereby causing the stabilizer to move along the teeth.
Further provided, in accordance with another preferred embodiment of the present invention, is a toothbrush system comprising a toothbrush handle, a toothbrush head having a plurality of selectable orientations vis a vis the handle; and a stabilizer operative to selectably stabilize the toothbrush head so as facilitate a change from a first of the plurality of selectable orientations to a second of the plurality of selectable orientations.
Further in accordance with another preferred embodiment of the present invention, the stabilizer comprises a wheel rigidly associated with the toothbrush head which is configured and arranged to roll along occlusal surfaces of teeth.
Also provided, in accordance with another preferred embodiment of the present invention, is a toothbrushing system comprising a handle; and a head mounted thereupon and including a multiplicity of bristles defining a teeth-contacting bristle surface, wherein the bristle surface has selectable convex and concave orientations at least one of which is adopted responsive to pressure brought to bear by the dental arch on the brush head.
Further provided, in accordance with still another preferred embodiment of the present invention is a tooth-brushing system comprising a handle; a head mounted on the handle and having a multiplicity of bristles arranged on a generally planar surface; and a bristle translator operative to translate at least a portion of said multiplicity of bristles relative to said generally planar surface.
Also provided, in accordance with a preferred embodiment of the present invention, is a toothbrush which typically comprises a three-section brush head that conforms to the shape of the jaw e.g. by means of a seesaw mechanism activated when pressure is applied to the brush head by the teeth.
Typically, when pressure is applied to a middle section of the brush head, the two lateral sections rise, thereby enabling the bristles to contact the outer surfaces of the maxilla and the mandible. When pressure is applied to one of the lateral sections of the brush head, the middle section rises, thereby to enable the bristles to contact the inner surfaces of the maxilla and the mandible.
The middle section of the brush head typically comprises at least one pair of bristle groups that is activated by a seesaw mechanism, e.g. by means of crossbars located within the base of the brush head, under each pair of bristle groups. When pressure is applied to an upper one of the bristle groups, a typically diagonally positioned lower group of bristles rises toward the teeth, whereas, when pressure is applied to the lower bristle group, the upper group rises.
The upper bristle group is preferably more rigid and tilted e.g. at a 90 degree angle relative to the tooth surface it meets, so as to allow the lower bristle group to better access spaces between the teeth.
A particular advantage of a preferred embodiment of the present invention is that the brush head conforms to the shape of the jaw and teeth thereby facilitating bristle-tooth contact during brushing, and also a better reach by the bristles into deep spaces which may be present between the teeth.
Further in accordance with another preferred embodiment of the present invention, the bristles are supported by a resilient element and at least one of the orientations of the bristle surface is adopted responsive to pressure brought to bear by the dental arch on the brush head, via the resilient element.
There is also provided, in accordance with another preferred embodiment of the present invention, a toothbrushing system comprising a handle; and a head mounted on one end of the handle and including a multiplicity of bristles and a bristle base supporting the multiplicity of bristles, wherein the bristle base has a rest position and has at least one degree of freedom of motion responsive to pressure and includes a mechanism which restores the bristle base to the rest position, and wherein the at least one degree of freedom includes a rotational degree of freedom allowing the bristle base to rotate at least partially about an axis.
Preferred embodiments of the present invention are illustrated in the following drawings:
Reference is now made to
In the illustrated embodiment, middle platform array 80 supports middle bristle groups 70 whereas lateral platforms 90 each support lateral bristle groups 60. The middle platform array 80 may comprise a single platform or may comprise a linear array of platforms such as several e.g. three platforms defined along the long axis 40 of the brush or such as several e.g. two platforms defined along the short axis 50 of the brush. Preferably, as shown, the middle platform array 80 comprises a two-dimensional array of platforms such as a 2×3 array of platforms 82 as shown. Each platform 82 supports one of the middle bristle groups 70.
The base 30 also typically comprises a pivot providing compartment 84 supporting the middle platform array 80. The pivot providing compartment 84 is typically snapped onto the bottom of the platform array 80. A preferred embodiment of the compartment 84 is shown in top cross sectional view in
Finally, the base 30 typically comprises a frame 86 which encases the base 30 including the pivot providing compartment 84. Frame 86 is typically pivotably mounted on one or more arms 75. Typically, the frame 86 snap fits onto the lateral platforms 90. The frame 86 may have side walls 88 only with no walls interconnecting the side walls 88, in order to minimize the thickness of the brush head in the dimension perpendicular to the basal plane.
According to a preferred embodiment of the present invention, as shown in
Any suitable mechanism may be employed to provide a fixed relationship between the head 20 and the handle 10 such as supporting arms 75 which have the advantage of allowing the base to be relatively slim. Alternatively, as described in detail with reference to
It is appreciated that preferably, the bristle groups 60 and 70 and their respective supporting platforms 90 and 80 are all integrally formed into a single disposable piece. Periodically, once the bristles have become worn, this single disposable piece is pulled off and discarded and replaced by a new disposable piece with its own platforms and bristle groups, e.g. by snapping the new piece onto the pivot providing compartment 84 and onto the frame 86.
Reference is now made to
According to one embodiment of the present invention as shown in
Reference is now made to
An isometric view of an individual pivotable cross-bar is shown in
According to a preferred embodiment of the present invention, a set of brushes constructed and operative in accordance with the embodiment of
As shown in
Referring again to
Reference is now made to
The embodiment of
A third head-handle orientation is shown in
Preferably, as shown, the teeth engager portion 510 of the stabilizer comprises a roller which provides the added advantage of allowing a user who due to poor control of hand movements, is incapable of normal tooth brushing activity, to achieve an acceptable level of tooth hygiene by rolling the teeth engager portion 510 along the dental arch, thereby sliding the toothbrush along the arch.
As shown in
Reference is now made to
The neck portion as illustrated in
The illustrated embodiments include, by way of example, specific mechanical means providing for translation of certain bristles toward and away from the teeth, or for creation of a general convex or concave orientation of the brush head as a whole, typically in reaction to pressure brought to bear by the dental arch, on other bristles. However, it is appreciated that alternatively, the same effect may be accomplished by electrical means or by any other suitable mechanical means.
As shown in
The spherical protrusion 696 supports the central bristle base of
In the embodiment of
It is appreciated that the pivot motion of a bristle base such as those shown in
It is appreciated that any of the toothbrush systems shown and described herein may be operable either manually or electrically.
The invention as shown and described herein includes, by way of example, specific embodiments in which certain bristles are translated, by suitable mechanical or electrical means, toward and away from the plane of the brush head responsive to pressure on other bristles. However it is appreciated that alternatively, bristles may be translated toward and away from the brush head plane generally and not merely responsively to pressure. For example, periodic translation toward and away from the plane of the brush head, and hence toward and away from the teeth, might be provided during normal brushing. The periodic translation might be provided such that at any given moment, various bristles or bristle groups on the head are at various different stages within the cycle such that at any given moment, some bristles might be at maximal elevation, some bristles might be at minimum elevation, and some bristles might be at one or more intermediate elevation levels.
Features of the present invention which are described in the context of separate embodiments may also be provided in combination in a single embodiment. Conversely, features of the invention which are described for brevity in the context of a single embodiment may be provided separately or in any suitable subcombination.
Claims
1. A tooth brushing system comprising:
- a toothbrush head including: a base defining a basal plane, a long axis and a short axis; and a multiplicity of bristles arranged in a plurality of bristle groups,
- the base comprising a respective plurality of planar base portions, respectively supporting the plurality of bristle groups, wherein the planar base portions are configured to see-saw above and below the basal plane.
2. A system according to claim 1 wherein the planar base portions include:
- at least one first pair of planar base portions configured to see-saw above and below the basal plane about a first pivot axis; and
- at least one second pair of planar base portions configured to see-saw above and below the basal plane about a second pivot axis.
3. A tooth brushing system according to claim 1 wherein the base defines first and second long sides which are parallel to the long axis and wherein the lengths of the multiplicity of bristles generally increases from the first long side to the second long side.
4. A tooth brushing system according to claim 1 wherein the base defines first and second long sides which are parallel to the long axis and wherein the softnesses of the multiplicity of bristles generally increases from the first long side to the second long side.
5. A system according to claim 3 and also comprising a handle configured and arranged to support the head in first and second selectable orientations, wherein the first orientation is rotated 180 degrees around the head's short axis, relative to the second orientation.
6. A system according to claim 5 wherein the handle comprises a swivel-mounted head support.
7. A system according to claim 1 wherein said planar base portions remain parallel to the basal plane while see-sawing above and below the basal plane.
8. A tooth brushing system comprising:
- a pair of friction-creating elements including a first friction-creating element operative to apply pressure on and receive pressure from teeth and a second friction-creating element constructed and arranged relative to the first friction-creating element, to engage a space between teeth in reaction to said pressure of the teeth on the first friction-creating element.
9. A system according to claim 8 wherein at least one of said friction-creating elements comprises at least one group of bristles.
10. A toothbrushing system comprising:
- a handle; and
- a head including a multiplicity of bristles defining a teeth-contacting bristle surface, wherein the bristle surface has selectable convex and concave orientations at least one of which is adopted responsive to pressure brought to bear by the dental arch on the brush head.
11. A toothbrushing system comprising:
- a handle; and
- a head mounted on one end of the handle and including a multiplicity of bristles and a bristle base supporting the multiplicity of bristles,
- wherein the bristle base has a rest position and has at least one degree of freedom of motion responsive to pressure and includes a mechanism which restores the bristle base to the rest position,
- and wherein said at least one degree of freedom includes a rotational degree of freedom allowing the bristle base to rotate at least partially about an axis.
12. A system according to claim 2 wherein said first pivot axis is parallel to said short axis and said second pivot axis is parallel to said long axis.
13. A toothbrush system comprising:
- a handle;
- a head atop the handle; and
- a stabilizer attached to the head and being configured and arranged to roll along occlusal surfaces of teeth, thereby causing the stabilizer to move along the teeth.
14. A toothbrush system comprising:
- a toothbrush handle;
- a toothbrush head having a plurality of selectable orientations vis a vis the handle; and
- a stabilizer operative to selectably stabilize the toothbrush head so as facilitate a change from a first of said plurality of selectable orientations to a second of said plurality of selectable orientations.
15. A system according to claim 14 wherein said stabilizer comprises a wheel rigidly associated with the toothbrush head which is configured and arranged to roll along occlusal surfaces of teeth.
16. A tooth-brushing system comprising:
- a handle;
- a head mounted on the handle and having a multiplicity of bristles arranged on a generally planar surface; and
- a bristle translator operative to translate at least a portion of said multiplicity of bristles relative to said generally planar surface.
17. A system according to claim 16 wherein said bristle translator is operative to translate a first portion of said multiplicity of bristles relative to said generally planar surface, responsive to pressure on a second portion of said multiplicity of bristles.
18. A system according to claim 16 wherein said bristle translator comprises a mechanical bristle translator.
19. A system according to claim 10 and wherein the bristles are supported by a resilient element and wherein at least one of the orientations of the bristle surface is adopted responsive to pressure brought to bear by the dental arch on the brush head, via said resilient element.
Type: Application
Filed: May 29, 2007
Publication Date: Dec 6, 2007
Inventor: Michael BARSHESHET (Rehovot)
Application Number: 11/754,439
International Classification: A46B 9/04 (20060101);