巴西专利BR112013015160A2 oral teeth cleaning device

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专利摘要:
APPLIANCE FOR CLEANING THE ORAL TEETH. An oral cleaning apparatus, such as a toothbrush (10) or a mouthwash (20), includes a bristle arrangement comprising a base member and a bristle field for contacting and cleaning teeth, wherein the bristle field bristles (17,26) have bristles with a density between 2 to 7%, and where the individual bristle filaments have a stiffness characterized by a deviation of not more than 50% of their length, to a pressure of the bristle tip. of 6 Newton/cm2 and a deflection of 50% for a bristle tip pressure of 85 Newton/cm2.
公开号:BR112013015160A2
申请号:R112013015160-9
申请日:2011-12-20
公开日:2021-06-01
发明作者:Kevin A Miller
申请人:Koninklijke Philips Electronics N.V.；
IPC主号:

专利说明:

TEETH CLEANING APPLIANCE BY ORAL WAY! The present invention relates generally to tooth cleaning apparatus such as toothbrushes and | oral products and, more specifically, it concerns the arrangement of the bristles in the appliance.
' In order to produce effective teeth cleaning with a : bristle field, either as part of a brush element. For a toothbrush or a dental cleaning device, it is important to maintain at least a threshold level of : 10 pressure of the tip of the bristles against the teeth. It was found in particular with operated toothbrushes | by the user, manual or electrical, that a user normally | does not apply sufficient force, ie, sufficient load, against the teeth to produce the required bristle tip pressure level for effective cleaning. Typically, the ; Bristle tip pressure is enough to eliminate only 40%, ie at the top, of plaque on teeth. The part | The remainder of the plaque, ie, the part closest to the tooth surface, is more tenacious and requires more pressure from the bristle tip to remove than normally applied. However, it is highly desirable to eliminate this remaining part of the plaque for effective teeth cleaning, promoting good oral health.
Thus, it is desirable that the effective pressures of the +25 bristle tip be produced using a reasonable average force by the user. A bristle field with specific characteristics ] helps to achieve the desired bristle tip pressure for effective cleaning with a reasonable user-applied force/load, without resulting in user discomfort.
Therefore, here is described an oral tooth cleaning apparatus, comprising: a handle, and a brush head assembly extending from the handle, the brush head assembly O 4 including a brush head member that comprises a base element and a bristle field for contacting and cleaning teeth, wherein the bristle field has a bristle density in the range of 2 to 7%, and wherein the individual bristle filaments have a stiffness; characterized by a bristle deflection of not more than 50% of its length, with a bristle tip pressure of 6" Newton/cm , thus effectively supporting a bristle tip pressure within the range for effective cleaning.
Figures 1 and 2 show top views of two bristle field arrangements, one for a toothbrush and one for a mouthwash.
Figure 3 is a close-up view of a field of toothbrush bristles using single filament.
| Figure 4 is an elevation view showing the maximum deflection of a single filament after application of a given level of force/load.
* Figure 5 is an elevation view of a tufted bristle field comprising a small number of filaments.
Figure 6 is a graph showing the desired area of bristle tip pressure as a function of bristle density.
Figure 7 is a graph of the tip pressure of the : 25 bristle versus the percentage of plaque removed and comfort rating.
Figure 8 is a diagram showing the overlapping coverage of individual bristle filaments in a field of bristles.
Figure 1 shows a toothbrush, generally at 10, which includes a handle portion 12 and a brush head assembly 14, the brush head assembly including a brush element with a bristle support plate 15 NS and a bristle field 17. The toothbrush 10 may be a manual toothbrush, or an electric toothbrush, with a drive system mentioned under 18, which drives the brush head assembly and the field of teeth. bristles in a selected motion, such as rotating back and forth; front through a selected angle, eg 11° or another effective angle, such as in the 9-20° range. . Figure 2 shows, in general, a dental cleaning: buccal 20 with an assembly unit 22. The assembly of the unit 22 can be located in a part that extends from the oral product, as shown, or part of the oral product itself. for hands-free operation. The oral product could include upper and lower tray sections 24, 25 to accommodate the upper and | 15 lower, or a single tray for just one jaw. : Attached or embedded within the surface of the trays is a bristle field usually shown at 26, for teeth cleaning. The present invention is oriented towards the physical characteristics of a bristle field as part of a brush element part of a brush head assembly for a toothbrush, whether manual or electric, or as part of an assembly part of the bristles of an oral product, which increases the effectiveness of cleaning the appliance, as it: 25 withstands an increase in the pressure of the tip of the bristles for a given force applied by the user. In particular, ] as an example, for toothbrushes that have an average user load of 100 grams, the bristle field described and shown here includes particular values of bristle density and bristle stiffness that result in an increase in value. bristle tip pressure, which in turn is effective in significantly improving cleaning. These bristle density and stiffness values are recognized O RS A A A
| 4/7 for withstanding effective bristle tip pressure levels, with average levels of force applied by a user.
THE ! use of high conventional bristle density and insufficient stiffness otherwise result in pressure | 5 insufficient bristle tip for effective cleaning with ; an average user strength, in an example, 100 grams.
As indicated above, a sufficient level of * bristle tip pressure is required to achieve effective cleaning by removing a significant portion of the tough plaque.
Bristle density and stiffness are important factors in supporting sufficient bristle tip pressure to produce the desired cleaning, without the need for extreme force values.
Figure 7 is a graph showing the increase in plaque removal about an axis relative to bristle tip pressure (line 23), for ; the comfort (user experience) of the other axis in relation to the bristle tip pressure (row 31). Does the graph show that *% above a value of 25 Newton/cm at 27, plaque removal does not significantly increase with additional bristle tip pressure.
A typical bristle tip pressure value on existing user-loaded conventional toothbrushes (100 grams in the example) with a conventional bristle field is 6 Newton/cm° , represented at 29 in the graph.
At a bristle tip pressure of 85 Newton/cm in * 25 33 years, the discomfort becomes significant.
Figure 3 shows an embodiment of a brush element 33 which is part of a brush head assembly for use in a toothbrush and which has a bristle field with the desired bristle density and stiffness characteristics for withstand the effective pressure of the bristles.
Brush element 31 includes a bristle support plate 32 to which are attached or mounted a plurality of individual bristle filaments 34-34 comprising the
To ' | " ) 5/7 | | j bristle field 36. The first characteristic of the present | bristle field is the density of the bristles. The total cross-sectional area of the individual filaments divided by the coverage area of the entire bristle area defines bristle density: 5. In the present embodiment, the bristle density is between 2% and 7%, preferably between 2% and 3%. This bristle density value is substantially less than . bristle density of conventional bristle fields used for oral cleaning. Typically, the individual filaments in the present bristle field arrangement will be evenly spaced across the area of the bristle field to obtain good overall cleaning coverage of according to stroke 37 of individual bristles 39, which is typically about 1 mm for a typical bristle filament. Generally, a certain overlapping covering 38 of each of the bristles 39 will produce a good overall cleaning effect as shown in the figure 8. M The other significant feature of the bristle field present is the stiffness of the filaments of the individual bristles. Referring to Figure 4, is the stiffness of the bristles in the embodiment shown such that it will withstand a bristle tip pressure of 6 grams Newton/cm without bristle deflection more than 50% of the total bristle length. In one example, the pressure value will be taken with a force of 100 grams -> 25 and a bristle field of the brush element described here. Deflection is shown in Figure 4. The undeflected bristle is : shown in 44, while the deflected bristle is shown in
46. The deflection value of 50% is shown at 48. This is the minimum bristle stiffness value for the bristles in the bristle field, ie, for a bristle tip pressure of 6 Newton/cm , the bristles do not deviate more than 50% of their length. If the brush deviates more than 50% from this value of the bristle tip pressure, it is too gentle for an effective ns ss Rs A cleaning, as they will stretch out and do not make contact | ! necessary for effective cleaning, and performance becomes | not linear.
For the maximum bristle stiffness value, the bristles should deviate 50% of their length (not less) at a pressure applied to the bristle tip of 85 Newton/cm , ie, ; when the pressure applied to the tip of the bristle reaches 85 ; Newton/cm2, the bristles will deviate less than 50% of their length.
If the bristles do not deviate 50% of your | Ú length, as bristle tip pressure reaches 85 i 10 Newton/cm2, the bristles are very stiff and produce | discomfort.
A stiffness value less than the minimum does not | will produce the desired cleaning effect, while a value higher than the maximum value will produce discomfort for the user.
Figure 6 shows a graph with the density of | : bristles along one axis and bristle stiffness along the other orthogonal axis.
The area 50 defined by the density of the 7 bristles between 2-7% with respect to an axis and a bristle stiffness represented by 50% bristle deflection between bristle tip pressures of 6 and 85 Newton/cm on the other axis represents the operating area for effective cleaning, without causing discomfort to the user.
Another feature of an effective bristle field is the physical profile of the bristle field, ie the geometry of the *: 25 bristle tips in the bristle field, referred to as the finishing profile.
The bristle profile may, however, vary, although preferably not flat.
Although Figure 1 shows an embodiment using individual uniformly spaced filaments, small tufts of bristles can also be used, as shown in Figure 5. Typically, in the present embodiment, if tufts are used instead of individual filaments, a tuft should not have more than six filaments.
A single filament is " À as shown at 60 in Figure 5. The small number of filaments allows the tufts to be tapered out to some extent in use, although they continue to be effective in cleaning and withstand high tip pressures. desired bristles.
Again, the individual tufts must be ; evenly spaced to provide good overall coverage, : preferably a little overlap, in operation. ! . Although the bristle field is described in detail with respect to a brush head embodiment, similar bristle field characteristics apply to the bristle field in the oral product realization, specifically the bristle density and stiffness characteristics of the bristles.
The above-mentioned characteristics of bristle field, especially bristle density and stiffness, and the profile structure, will withstand increased bristle tip pressure for a specific load, so as to "increase the effectiveness of plate removal with a uniform coverage.
This includes reducing or eliminating the toughest plaque that is lost by the action of most manual and dental appliances that use a medium load applied by the user.
While a preferred embodiment has been disclosed for purposes of illustration, it is to be understood that various changes, modifications and substitutions can be incorporated into the embodiment without departing from the spirit of the invention, which is defined by the claims that follow.
the ga

权利要求:
Claims (13)
[1]
1. APPLIANCE FOR CLEANING TEETH BY ORAL WAY, comprising: a handle (12); and a brush head assembly (14) extending: from the handle, the brush head assembly including a brush head element comprising a base element. (15) and a bristle field (17) for contacting and cleaning the 'teeth, where The bristle field has a bristle density | 10 in the 2 to 7% range, and where the bristle filaments | individual have a stiffness characterized by a deflection of the bristles of not more than 50% of their length, with a | bristle tip pressure of 6 Newton/cm º, so effectively | withstanding bristle tip pressure within the band for effective cleaning. | ;
[2]
2. ORAL CLEANING APPLIANCE according to claim 1, characterized in that the density of the bristles | : is in the 2-3% range.
[3]
3. ORAL CLEANING APPLIANCE according to claim 1, wherein the individual filaments have a maximum bristle stiffness characterized by a deflection that reaches 50% when the bristle tip pressure reaches 85 Newton/cm effectively, withstanding bristle tip pressure within the range for effective cleaning without « 25 producing discomfort for the average user.
[4]
4. ORAL CLEANING APPLIANCE, according to claim 1, characterized in that the device is a manual toothbrush (10).
[5]
5. ORAL CLEANING APPLIANCE, according to claim 1, characterized in that the device is an electric toothbrush (10).
[6]
6. ORAL CLEANING APPLIANCE, according to claim 1, characterized in that the field of the bristles has NO a DR Mo a o Á a non-planar profile.
[7]
ORAL CLEANING APPARATUS according to claim 1, wherein the bristle field is characterized in that it comprises individual bristle filaments substantially uniformly spaced along the bristle field e. positioned to provide some overlap in the | ' cover over teeth during appliance operation. | '
[8]
8. ORAL CLEANING APPLIANCE, in accordance with | claim 1, wherein the bristle field is characterized by comprising a plurality of bristle tufts (60) with no more than 6 individual bristle filaments per tuft, the | bristle tufts substantially uniformly spaced across the bristle field and positioned so as to provide some overlap in coverage over the teeth during operation of the appliance. | .
[9]
9. ORAL TEETH CLEANING APPLIANCE | comprising: | a mouth product (20) having one or more trays (24, 25) to accommodate a user's teeth; a mounting unit (22) for the oral product; and a bristle field (26) positioned on at least one of the trays, comprising a set of bristles attached to the trays for contacting and cleaning teeth in operation with: the buccal product, wherein the bristle field has a bristle density. in the range of 27%, and in which the individual bristles have: a stiffness characterized by a deflection of the bristles not exceeding 50% of its length, with a bristle tip pressure of 6 Newton/cm , thus effectively supporting a Bristle tip pressure within range for effective cleaning.
[10]
10. ORAL CLEANING APPLIANCE according to claim 9, characterized in that the maximum stiffness of the bristles AA A AA A AAA AAA ta bristles is defined by a deflection that reaches 50%, when the bristle tip pressure reaches 85 Newton/ cm°, thus effectively supporting a pressure of the bristle tip within the band for effective cleaning without producing discomfort for the common user. .
[11]
11. APPLIANCE FOR ORAL CLEANING, according to the 1st claim 9, characterized in that the density of the bristles is in the range of 2-3%. '
[12]
ORAL CLEANING APPARATUS according to claim 9, wherein the bristle field is characterized in that it comprises individual bristle filaments substantially | evenly spaced across the field of bristles and | positioned to provide some overlap in the covering over the teeth during appliance operation.
[13]
13. ORAL CLEANING APPLIANCE, in accordance with . claim 9, wherein the bristle field is characterized in that it comprises a plurality of tufts (60) with no more than 6] individual bristle filaments per tuft, the bristle tufts substantially uniformly spaced across the bristle field and so positioned. to provide some overlap in the cover over the teeth during appliance operation. . here

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法律状态:
2021-06-08| B08F| Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]|Free format text: REFERENTE AS 8A E 9A ANUIDADES. |

2021-07-20| B25D| Requested change of name of applicant approved|Owner name: KONINKLIJKE PHILIPS N.V. (NL) |

2021-08-10| B25G| Requested change of headquarter approved|Owner name: KONINKLIJKE PHILIPS N.V. (NL) |

2021-09-28| B08K| Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]|Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2631 DE 08-06-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |

优先权:

申请号 | 申请日 | 专利标题

US201061424718P| true| 2010-12-20|2010-12-20|

US61/424,718|2010-12-20|

PCT/IB2011/055801|WO2012085832A1|2010-12-20|2011-12-20|Oral hygiene appliance with bristle characteristics for effective cleaning|

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