巴西专利BR112013005086B1 MANUAL TOOTH BRUSH

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专利摘要:
force-sensing toothbrush. the present invention relates to an oral hygiene implement (10) to assess the applied force. the oral hygiene implement has a handle region (12), a head (14) and a neck (16) extending between the handle region and the head. the head has a plurality of cleaning elements (20) attached to the head. the cable region has a first portion (30) and a second portion (40) and a first portion and the second portion. the force sensor includes the head and neck and at least a portion of the force sensor is integrally formed with the first portion and / or the second portion.
公开号:BR112013005086B1
申请号:R112013005086-1
申请日:2011-09-20
公开日:2020-12-15
发明作者:Uwe Jungnickel；Niclas Altmann；René Guebler
申请人:The Gillette Company Llc；
IPC主号:

专利说明:

FIELD OF THE INVENTION
[001] The present invention relates to a personal hygiene device, more particularly a personal hygiene device that includes a force indication system. BACKGROUND OF THE INVENTION
[002] The use of toothbrushes for cleaning a user's teeth has been known for a long time. During the brushing process, a user generally applies a force to the brush that is exerted against the teeth and gums by the cleaning elements of the toothbrush. A minimum level of force must be applied to remove plaque and debris; however, high levels of strength can have negative consequences for an individual's health. For example, problems such as irritation of the gums may occur, or over time, retraction of the gums or abrasion of the tooth enamel. Unfortunately, the presence of these problems can intensify a contributing factor, that is, an intense brushing force. As some users may perceive that such problems may be caused by insufficient cleaning, in an effort to correct the problems, users may apply even more intense force during brushing, which in turn can cause further gum irritation and / or gum retraction or tooth enamel abrasion.
[003] To avoid or mitigate these problems, dental professionals can recommend the use of a soft bristle toothbrush. However, the use of a soft-bristled toothbrush does not exclude the application of intense brushing forces to the oral cavity. In addition, it is extremely difficult for an individual, during brushing, to determine the ideal strength required for cleaning. Although a user can apply a minimum level of force to achieve cleaning, it is difficult to perceive the level at which the force is excessively high. In addition, studies have shown that the cleaning capacity of a toothbrush can, in fact, be reduced if the brushing strength is increased to an excessively high level.
[004] Other recommended solutions may be to apply less force during brushing. However, if very weak force is applied during brushing, the cleaning efficiency of the toothbrush can often be reduced. Additionally, similarly to intense brushing forces, the individual may find it difficult to determine when brushing forces are too weak.
[005] Consequently, there is a need for a personal hygiene supplement that signals the user when an excessively high brushing force is being applied. SUMMARY OF THE INVENTION
[006] The personal hygiene implement of the present invention may provide feedback to the user regarding the excessively high level of applied brushing force. And in some embodiments, the personal hygiene implement of the present invention may provide an indication to the user about a very weak brushing force being applied, a sufficient amount of brushing force, a lower limit of a sufficient brushing force range; and / or an upper limit of the sufficient brushing force range. By providing this feedback to a user, the personal hygiene implement of the present invention can assist the user in achieving better results when using the personal hygiene implement.
[007] In some embodiments, an oral hygiene implement may comprise a handle region, a head and a neck extending between the handle region and the head. The head comprises a plurality of cleaning elements attached to the head. cable comprises a first portion and a second portion and a force sensor hingedly connected to the first portion and the second portion. The force sensor comprises the head and neck, and the force sensor and the first portion and / or the second portion are integrally formed.
[008] In some embodiments, an oral hygiene implement comprises a cable region, a head and a neck extending between the cable region and the head.The head comprises a plurality of cleaning elements attached to the head, and the region cable forms a hollow cavity. A force sensor comprises the head and neck and a distal portion disposed within the hollow cavity. The force sensor is pivotally connected to the cable region and is integrally formed with the cable region. An output source is in signal communication with the force sensor, so that when the force sensor is moved a predetermined distance, the output source provides a signal to the user. BRIEF DESCRIPTION OF THE DRAWINGS
[009] Figure 1 is an elevation view showing the left side of an oral hygiene implement, for example, a toothbrush, built in accordance with the present invention.
[0010] Figure 2 is a plan view showing the front of the oral hygiene implement in Figure 1.
[0011] Figures 3A and 3B are side views showing the left side of the oral hygiene implement in Figure 1, providing the user with a first indication and a second indication, respectively.
[0012] Figure 4A is a close view showing the connection between a force sensor and a first portion and a second portion of the cable region of the oral hygiene implement of Figure 1.
[0013] Figure 4B is a close view showing the cable region, in part, of the oral hygiene implement in Figure 1, excluding the force sensor for easy viewing.
[0014] Figure 4C is a close view showing the force sensor, in part, of the oral hygiene implement of Figure 1, excluding the cable region for easy viewing.
[0015] Figure 5A is a cross-sectional view showing the oral hygiene implement of Figure 1, taken along line 5-5 shown in Figure 2.
[0016] Figures 5B to 5D are seen close up showing the finish and the neck of the oral hygiene implement shown in Figure 5A.
[0017] Figure 6A is an exploded view that includes hidden lines showing another modality of an oral hygiene implement.
[0018] Figure 6B is an exploded view showing the toothbrush of Figure 6A
[0019] Figure 7 is a perspective view showing the oral hygiene implement of Figure 6A.
[0020] Figure 8A is a cross-sectional view showing the oral hygiene implement of Figure 6, taken along line 8A-8A shown in Figure 7.
[0021] Figure 8B is a close view showing a portion of the oral hygiene implement in Figure 6A.
[0022] Figure 9 is a close view showing a portion of another embodiment of the oral hygiene implement of Figure 6A.
[0023] Figure 10 shows a sample of toothbrush attached to a test frame.
[0024] Figure 11 is a cross-sectional view showing a toothbrush sample from Figure 10 and a pull block on the toothbrush head of the toothbrush sample.
[0025] Figure 12 is a close view showing the toothbrush sample of Figure 10 and the pull block on the toothbrush head of the toothbrush sample.
[0026] Figure 13 is a close view showing a power indicator attached to the pull block of Figures 11 and 12.
[0027] Figure 14 is a side view showing a toothbrush constructed in accordance with the present invention. DETAILED DESCRIPTION OF THE INVENTION Definitions:
[0028] The following text presents a broad description of numerous different modalities of the present invention. The description is intended to be interpreted as merely exemplary and does not describe all possible modalities, as this would be impractical, if not impossible, and it should be understood that any resource, characteristic, component, composition, ingredient, dosage, product, stage or The methodology described here can be totally or partially erased, combined with, or replaced by, any other resource, characteristic, component, composition, ingredient, product, stage or methodology described here. Numerous alternative modalities could be implemented, using the current technology or the technology developed after the date of filing this patent, which would still be within the scope of the claims.
[0029] It should also be understood that unless a term is expressly defined in this patent using the phrase "For use in the present invention, the term '' means ..." or a similar phrase, there is no intention to limit the meaning of that term, either expressly or by implication, beyond its common or usual meaning, and that term should not be construed as having a limited scope based on any statement made in any section of this patent (except the language of claims). No term is intended to be essential to the present invention, except when so stated. To the extent that any term recited in the claims at the end of this patent is mentioned in this patent in a manner consistent with a single meaning, this is done only for the sake of clarity so as not to confuse the reader, and there is no intention to that this claim term be limited, by implication or otherwise, to that one. Finally, unless an element of the claim is defined by the mention of the word "means" and a function, without mention of any structure, there is no intention that the scope of any claim element will be interpreted based on the application of the 35 USC § 112, sixth paragraph.
[0030] For use in the present invention, the term "oral hygiene implement" refers to any device that can be used for oral hygiene purposes. Some suitable examples of such devices include toothbrushes (manual and electric), dental floss applicators (manual and electric), mouthwashers ("water picks"), and the like. Description:
[0031] For ease of explanation, the oral hygiene implement described hereinafter must be a manual toothbrush; however, as stated earlier, an oral hygiene implement constructed in accordance with the present invention is not limited to a manual toothbrush construction. In addition, the modalities described from this point onwards in this document are equally applicable to razors, razors or shavers, other personal hygiene implements, or the like.
[0032] As shown in Figures 1 and 2, in one embodiment, a toothbrush 10 comprises a region of handle 12, a head 14 and a neck 16 extending between the handle and head 14. A plurality of cleaning elements 20 is attached to the head 14. The cable region 12 may comprise a first portion 30 and a second portion 40. The first portion 30 and the second portion 40 may form part of the surface facing outward from the cable region 12.
[0033] A force sensor 60 can be mounted in an articulated manner on the first portion 30 and / or the second portion 40. The force sensor 60 may comprise the head 14 and the neck 16. Additionally, the force sensor 60 may comprise a output source 250. As shown, output source 250 can be arranged adjacent to the distal end 260 of the force sensor 60. The force sensor 60 further comprises a proximal end 270 which is opposite the distal end 260.
[0034] Force sensor 60 can be mounted using springs 280 and 290. Springs 280 and 290 can be integrally formed with force sensor 60 and / or the first portion 30 and / or the second portion 40. In in some embodiments, the springs 280 and 290 can be formed integrally with the force sensor 60 which is subsequently fixed in the first portion 30 and / or in the second portion 40. In some embodiments, the springs 280 and / or 290 can be formed integrally with the first portion 30 and / or the second portion 40, and the force sensor 60 can then be attached later to the springs 280 and / or 290. In some embodiments, a portion 2260 of the force sensor 60 can be integrally formed with the first portion 30 and / or the second portion 40. For example, the portion 2260 can be integrally formed with springs 280 and / or 290; the first portion 30 and / or the second portion 40, while the force sensor 60 comprises a replaceable head.
[0035] In the modalities in which force sensor 60 is integrally formed with springs 280 and 290, force sensor 60 and springs 280 and 290 can be produced in a one-step injection molding process, for example. Similarly, in the embodiments in which springs 280 and 290 are integrally formed with the first portion 30 and the second portion 40, the springs 280 and 290 and the first portion 30 and the second portion 40 can be produced in a modeling process by one-step injection, for example. Additionally, in the modalities in which the force sensor 60, the springs 280 and 290 and the first portion 30 and the second portion 40 are integrally formed, the springs can be produced in a one-step injection molding process, for example.
[0036] In operation, as shown in Figures 3A and 3B, when a suitable force 320 is applied to the cleaning elements 20, the force sensor 60 can rotate in relation to the cable region 12. At the distal end 260 (shown in Figure 2) from the force sensor 60, the output source 250 provides the user with a first visual indication 252 on the application of the appropriate force. As shown in Figure 3B, the more intense application force 330 to the cleaning elements 20 can cause the force sensor 60 to rotate to a greater extent in relation to the cable region 12. Additional rotation can cause the power source output 250 provide a second visual indication 254.The second visual indication 254 may be different from the first visual indication 252.The second visual indication 254 may indicate to the user that the brushing force applied is excessive.
[0037] In addition to the second visual indication 254, the force sensor 60 can similarly provide a tactile signal to the user. As shown in Figure 3B, a 360 portion between springs 280 and 290 (shown in Figure 2) and the distal end 260 (shown in Figure 2) of the force sensor 60 can project from an outwardly facing surface 350 of the cable region 12, thus providing tactile feedback to the user. In some embodiments, the 360 portion can be configured so that no tactile indication is provided to the user.
[0038] With reference to Figure 4A, as stated above, the force sensor 60 can comprise springs 280 and 290. As shown, springs 280 and 290 can comprise torsion bars. The force sensor 60 can rotate around the springs 280 and 290. The springs 280 and 290 must be constructed in such a way that the rotation of the force sensor does not cause plastic deformation in the springs 280 and 290. Instead, the rotation movement of the force sensor 60 should only cause the elastic deformation of the springs 280 and 290.
[0039] Springs 280 and 290 must be designed to avoid fatigue failure. The variables that can affect fatigue failure and elastic deformation are the choice of material, the sizing of the springs and the angular displacement of springs 280 and 290.
[0040] Springs 280 and 290 can comprise any suitable size. For example, in some embodiments, springs 280 and 290 may comprise an area in cross section that is greater than about 3 mm2 to about 50 mm2, or any individual number within that range. In some embodiments, the springs may comprise an area in cross section between about 10 mm2 to about 20 mm2. In yet other embodiments, the springs may comprise an area in cross section that is greater than about 3 mm2, greater than about 5 mm2, greater than about 7 mm2, greater than about 10 mm2, greater than about 15 mm2 , greater than about 17 mm2, greater than about 20 mm2, greater than about 25 mm2, greater than about 30 mm2, greater than about 35 mm2, greater than about 40 mm2, greater than about 45 mm2, and / or less than about 50 mm2, less than about 45 mm2, less than about 40 mm2, less than about 35 mm2, less than about 30 mm2, less than about 25 mm2, less than about 20 mm2, less than about 15 mm2, less than about 12 mm2, less than about 10 mm2, less than about 7 mm2, less than about 5 mm2, or any ranges within the numbers shown. However, it is worth noting that if the cross-sectional area of springs 280 and 290 is too large, then the force sensor 60 will tend to flex against the rotation.
[0041] Springs 280 and 290 can be configured to influence the response force. An example of the influence of the response force is the change in the cross-sectional area of the springs 280 and / or 290. Other examples of influence of the response force include the choice of material and the length of the spring. The length of the springs 280 and / or 290 is discussed in detail with reference to Figures 4B and 4C.
[0042] With reference to Figures 4A and 4B, in some modalities, the force sensor 60 can be attached later to the springs 280 and 290. In such modalities, the spring 280 can be configured so that a first surface 460A of the force sensor 60 engages a first engaging surface 280A of the spring 280 so that the first surface 460A does not rotate with respect to the first engaging surface 280A. Similarly, spring 290 can be configured so that a second surface 460B does not rotate with respect to a first engaging surface 290A of spring 290.
[0043] For example, the first engaging surface 280A may comprise a detent that engages with a complementary depression in the first surface 460A. As another example, the first engagement surface 280A may comprise a complementary depression which engages a holder that is comprised of the first surface 460A. As yet another example, both the first engaging surface 280A and the first engaging surface 460A may comprise a holder and a depression and be configured such that the holder of the first surface 460A engages with the depression of the first engaging surface 280A and so that the holder of the first engaging surface 280A engages with the depression of the first surface 460A. The second surface 460B and the first engaging surface 290A can be configured in a similar manner. Arrangements are contemplated in which a plurality of complementary holders and depressions can be used on the first surface 460A, the second surface 460B, and / or the first surfaces coupling 280A and 290A.
[0044] With reference to Figures 4A and 4C, as stated above, the force sensor 60 can be integrally formed with springs 280 and / or 290. In such modalities, springs 280 and / or 290, can be configured so that a first inward facing surface 30A of the first portion 30 engages with a second engaging surface 280B of the spring 280 so that the first inward facing surface 30A does not rotate with respect to the second engaging surface 280B. Similarly, spring 290 can be configured so that a second inward facing surface 40A does not rotate with respect to a second engaging surface 290B of spring 290. The detectors and depressions described so far can be used to eliminate or eliminate least reduce the probability of rotation. As mentioned so far, the length of springs 280 and / or 290 can affect the response force provided by springs 280 and / or 290. As shown in Figures 4B and 4C, a length 1580 of spring 280 is defined by the distance between the first engaging surface 280A and the second engaging surface 280B. The length 1580 of the spring 280 can be affected by the material selected for the spring. Additional factors include aesthetics as well as the ability to grasp by a user. Length 1580 can be any suitable length. In some embodiments, the length 1580 may be greater than about 1 mm, greater than about 1.5 mm, greater than about 2.0 mm, greater than about 2.5 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 5.0 mm, greater than about 5.5 mm, greater than about 6 mm, greater than about 6.5 mm, greater than about 7 mm, greater than about 7.5 mm, and / or equal to about 8.0 mm, less than about 7.5 mm, less than about 7.0 mm, less than about 6.5 mm, less than about 6.0 mm, less than about 5.5 mm, less than about 5.0 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 1.5 mm, or any individual numbers or ranges of the displayed values. The spring 290 can be similarly constructed.
[0045] With reference to Figure 5A, output source 250 can comprise the first visual indication 252 and the second visual indication 254.The first visual indication 252 and the second visual indication 254 may be different from each other. For example, the first visual indication 252 may comprise a first color and the second visual indication 254 may comprise a second color. The first color may mean to the user that an adequate amount of brushing force is being applied, while the second body may indicate to the user that a excessive amount of force is being applied.The toothbrush 10 of the present invention can be configured to provide the user with any suitable number of indications for one or more conditions. These indications and conditions are discussed later in this document.
[0046] It has been found that, with regard to toothbrushes, consumers tend not to like a substantial amount of movement in the area of the toothbrush head. Specifically, consumers tend to dislike excessive toothbrush head movements in a plane that is generally perpendicular to a 580 pivot axis. With reference to Figures 5B, 5C and 5D, head movement in that plane can be determined by measuring a distance in a straight line 1089 between a plane at rest 1061 and a plane with applied force 1063 where the straight line 1089 is orthogonal to the plane at rest 1061 and is tangent to the toothbrush head 14 at an intersection 1071.
[0047] The resting plane 1061 extends through depot axis 580 and extends through the intersection 1071 between a side 1073 (which includes the proximal end 270) and a first face 1075 of the toothbrush head 14. When the intersection 1071 includes a rounded edge, the point of intersection between side 1073 and the first surface 1075 will be the bisection of the rounded edge. Reference is made to the resting plane 1061 when there is no load on the contact elements 20.
[0048] The plane with applied force 1063, similar to the plane at rest 1061, extends through pivot axis 580 and extends through the intersection 1071. Reference is made to the plane with applied force 1063 when there is a predetermined load 1090 applied to cleaning elements 20. The predetermined applied load 1090 is 5 Newtons.
[0049] In some modalities, the distance in a straight line 1089 may be less than about 6 mm, less than about 5 mm, less than about 4 mm, less than about 3 mm, less than about 2 mm, less than about 1 mm and / or greater than about 1 mm, greater than about 2 mm, or any individual number within the ranges shown.
[0050] At least one advantage of using torsion bars is that springs 280 and 290 (shown in Figure 2) can be well suited to resist movement in unwanted directions. For example, movements of the toothbrush head in directions other than movement in the plane perpendicular to the pivot axis 580 are unwanted movements. Such unwanted movements can cause the toothbrush to indicate false positives to a user. A false positive occurs when an indication is given to the user that the brushing force is excessive, when in reality the brushing force is not excessively high. In addition, these unwanted movements can cause the toothbrush to incorrectly detect applied brushing forces. For example, these unwanted movements could cause a misalignment of the internal systems, thus causing the toothbrush to provide no indication to the user even if an excessively intense brushing force was being applied. Furthermore, consumers tend to dislike such unwanted movements because these movements can cause a sense of loss of control.
[0051] Additionally, variations in manufacturing tolerances, specifically in non-integral constructions, can make a pressure detection toothbrush susceptible to unwanted movements and thus increase the probability of incorrectly detecting the applied brushing force. In this way, toothbrushes built in accordance with the inventions presented here may be less susceptible to unwanted movements that can reduce the likelihood of incorrectly detecting the brushing forces applied.
[0052] With reference to Figure 5A, to obtain a reduced straight line distance 1089 (see Figure 5D), important variables are as a first distance 520 which is defined by the maximum straight line distance between the proximal end 270 and the axis of pivot 580 of the force sensor 60 and a second distance 524 which is defined by the maximum straight line distance between the distal end 260 and the pivot axis 580. To accommodate consumer expectations, the first distance 520 may be less than the second distance 524. For example, the first distance 520 may be less than about 90 percent of the second distance524, less than about 80 percent, less than about 70 percent, less than about 60 percent, less than about 50 percent, less than about 40 percent, less than about 30 percent, less than about 20 percent, less than about 10 percent percent, and / or higher than 10 percent, higher than 20 percent, higher than 30 percent, higher than 40 percent, higher than 50 percent , maiorquecercade60 percent, Maiorquecercade70 percent, greater than about 80 percent, and / or any ranges or individual numbers presented within the percentages provided. When the first distance 520 and the second distance 524 are properly configured, a minimal amount of head movement can cause much greater movement adjacent to the distal end 260 of the force sensor 60.
[0053] In some embodiments, a toothbrush constructed in accordance with the present invention may comprise an electrically driven element to provide an indication to the user. For example, a toothbrush according to the present invention can comprise an LED that provides a signal to the user about a particular condition. As shown in Figures 6A and 6B, a toothbrush 610 can comprise an output source 650 that includes an LED. The toothbrush 610 can comprise a handle region 612, a head 514 and a neck 516 extending between the handle region 612 and the head 514. As shown, a force sensor 660 can comprise the head 514, the neck 516 and a distal portion 545 which is arranged within a hollow cavity in the cable region 612.
[0054] The hollow cavity of the cable region 612 can be properly sized so that a sub-cartridge 681 can be inserted into the hollow cavity. Sub-cartridge 681 can comprise a plurality of electrical contacts, for example 694, 696 and 698, and one or more power supplies, 691, for example, batteries. An end cap 692 can be connected to cable region 612 to enclose sub-cartridge 681 within the hollow cavity. End cap 692 can engage sub-cartridge 681 so that one or more electrical contacts, for example 698, engage power supply 690 after attaching end cap 692 to cable region 612.
[0055] Additionally, as shown, a front cover 675 can cover the hollow cavity of the cable region 612 adjacent to the neck 516. The front cover 675 can reduce the likelihood of water and / or other contaminants entering the hollow cavity. For 610 toothbrushes with electronic devices, water and / or contaminants can cause electrical shorts that, in turn, can interrupt the output source 650 functionality.
[0056] Any suitable material can be used for the 675 front cover. Some examples of suitable materials include thermoplastic elastomers, silicone, nitrile butadiene rubber, ethylene propylene diene monomer rubber, or the like. In addition, the front cover 675 can be attached to the cable region 612 in any suitable manner, for example, by overlapping molding. In some embodiments, the cable region 612 and the front cover 675 can overlap to some extent to help reduce the likelihood of contaminants entering between the junction of the front cover 675 and the cable region 612. In some embodiments, the material of the cap 675 may also extend over a portion or portions of the cable region 612, to provide a gripping surface.
[0057] As shown in Figure 7, the force sensor 660 can be attached to the cable region 612 using springs 680 and 690. In some embodiments, the force sensor 660 can be integrally formed with springs 680 and 690. In such embodiments, the springs 680 and 690 can then be attached to a wall portion 721 of the cable region 612. In some embodiments, the force sensor 660, the springs 680 and / or 690 and the cable region 612 they are all fully formed. In some embodiments, springs 680 and / or 690 can be formed integrally with cable region 612 and subsequently the force sensor 660 can be attached to springs 680 and / or 690. Where applicable, springs 680, 690, the sensor of force 660 and / or the wall portion 721 can be provided with complementary retainers and recesses as described so far. Springs 680 and / or 690 can be configured as described here with respect to springs 280 and 290. For example, springs 680 and / or 690 can comprise torsion bars.
[0058] With reference to Figure 8A, the force sensor 660 can be configured similarly to the force sensor 60 (shown in Figure5). That is, a first portion 661 of the force sensor 660 comprising the head 514 may comprise a first distance 820 which is defined by the maximum straight line distance between a proximal end 870 and a pivot axis 880 of the force sensor 660, and a second portion 662 of the force sensor 660 may comprise a second distance 824 which is defined by the maximum straight line distance between the pivot axis 880 and a distal end 860 of the force sensor 660. The first distance 820 may be less than second distance 824 by the same percentages discussed in the present invention with respect to the first distance 520 and the second distance 524.
[0059] In operation, a force 875 is applied to the cleaning elements 620 on the head 514 of the toothbrush 610. If the force 875 is of a suitable level that does not exceed a predetermined value, the distal end 860 of the force sensor 660 it will not move to the point of closing contacts 694 and 696. However, if force 875 is detected as excessive, then force sensor 660 will be able to rotate around pivot axis 880 until the point of closing contacts 694 and 696 completing thus the circuit. Once the circuit is completed, energy can be sent to the output source 650, thereby energizing the output source 650.
[0060] Contact 696 together with springs 680 and / or 690 can provide adequate resistance so that an adequate brushing force 875 does not cause contacts 694 and 696 to close. However, modalities in which contact 696 is intended to provide all the resistance of the force sensor 660 so that a properly applied brushing force 875 does not cause the contacts 696 and 694 to close, thus energizing the circuit. In these embodiments, the springs 680 and 690 may not provide resistance to the movement of the force sensor 660 in relation to the cable region 612. And, in these modalities, the force sensor 660 can be produced separately from the cable region 612 and later fixed to the cable region 612.
[0061] Various variables of contact 696 can affect the resistance that contact 696 provides to the movement of the force sensor 660. For example, the choice of material, the area in cross section, the width, thickness, the free length, and the like, or combinations thereof, can affect the resistance of the force provided by contact 696. Without adhering to the theory, it is believed that contact 696 can provide more fine adjustment of the force response of the force sensor than the configuration of the springs discussed until the time.
[0062] As shown in Figure 8B, contact 696 can be a separate component comprising a conductive material. Any suitable conductive material can be used. For example, steel, copper, aluminum, brass, tin, etc., similar or combinations of them can be used for one or more of the contacts 694, 696 and / or 698. modalities in which one or more of the electrical contacts are formed of an electrically conductive non-metallic material.
[0063] The term "electrically conductive non-metallic materials" for use in the present invention includes materials comprising one or more non-metals and one or more metals, such as polymeric compositions containing metal particles. These compounds are often produced by mixing solid conductive particles, such as carbon black, stainless steel fibers, silver or aluminum flakes or nickel-coated fibers, with electrically insulating volume thermoplastics such as polystyrene, polyolefins, nylon , polycarbonate, acrylonitrile-butadiene-styrene (ABS) copolymers, and the like.
[0064] Recently, there has been an increasing interest in replacing carbon black or compounds containing metal particles of the types described above, with electrically conductive polymers and their mixtures with common insulating polymers including, but not limited to, polyanilines. Polyaniline (or PANI) and its synthesis, as well as the preparation of the electrically conductive form of this polymer by, for example, the contact of polyanilines with protonic acids resulting in salt complexes, have been described in the prior art. Additionally, electrically conductive polymers are known and used in the industrial sector, particularly in the production of electronic components. Some examples of electrically conductive polymer compositions are illustrated in US Patent No. 5,256,335; 5,281,363; 5,378,403; 5,662,833; 5,958,303; 6,030,550; and 6,149,840. Additional electrically conductive polymer compositions are described in US Patent Nos. 5,866,043 and 6,685,854. The term "electrically conductive non-metallic materials" for use in the present invention also includes these types of compositions.
[0065] Another electrically conductive substrate suitable for use in the present invention is discussed in US Patent Nos. 6,291,568, 6,495,069 and 6,646,540. This substrate has a first level of conductance when at rest, or inactive, and a second level of conductance resulting from a change in stress; that is, mechanical or electrical stress. Mechanical stress may include stretching and / or compression. This substrate comprises a granular composition, in which each granule comprises at least one substantially non-conductive polymer and at least one electrically conductive charge material. The conductive filler material can be one or more metals, other conductive or semiconductive elements and oxides or intrinsically conductive inorganic or organic semi-conductive polymers. The granules are typically up to 1 mm in size, and the volumetric ratio between granule (conductor) and polymer is suitably at least 3: 1. Other substrates that conduct electricity when compressed are considered to be suitable for use in the present invention.
[0066] In the modalities in which contact 696 comprises an electrically conductive non-metallic material, contact 696 can be formed integrally with sub-cartridge 681. However, in such modalities, care must be taken to ensure that the other contacts 694 and 692 are isolated from any conductive portions of sub-cartridge 681 to reduce the likelihood of electrical shorts.
[0067] As shown in Figure 9, the force sensor 960 can comprise an electrically conductive non-metallic material. In such embodiments, contact 696 (shown in Figures 7, 8A and 8B) may not be necessary. For example, when not in use, the 960 force sensor may be non-conductive; however, during use, if a predetermined or greater mechanical stress is applied, the 960 force sensor can become conductive. As another example, during application of adequate force during brushing, the 960 force sensor may be non-conductive, but during high brushing applications, the 960 force sensor may become conductive.
[0068] With reference again to Figures 6A, 6B, 7, 8A and 8B, the output source 650 can be in electrical communication with the force sensor 660 and provide an output signal to a user when the user applies excessive force. However, modalities are contemplated in which the 610 toothbrush provides an output signal to the user that corresponds to the application of (1) insufficient strength, and / or (2) sufficient strength during their oral hygiene routine. Any suitable output signal can be provided to the user. Some suitable examples of output signals include vibration (tactile), audible, visual, similar, or combinations thereof. For example, in case the output signal is a vibration, the output source 650 may comprise a motor that rotates an eccentric weight. As another example, if the output signal is audible, output source 650 may comprise a horn, piezo-audio indicator, audio-magnetic indicator, audio transducer, speaker, cicada, and / or the like.
[0069] Regarding the visual cues provided for the user, any suitable number can be provided. For example, a plurality of visual cues for the user can be provided. Visual cues or other signs / indications for the user can be provided for numerous different conditions. For example, output source 650 can be configured so that the user receives only one signal corresponding to one of the following conditions: (1) insufficient force is being applied; (2) excessive force is being applied; or (3) sufficient force is being applied. As yet another example, output source 650 can be configured so that the user receives two signals that are selected from the following conditions: (1) insufficient force is being applied; (2) excessive force is being applied; and / or (3) sufficient force is being applied. As yet another example, output source 650 can be configured so that the user receives two signals that may include signaling for the following conditions (1) excessive force is being applied, within a range just above sufficient force; and (2) a much greater force is being applied (much greater than a suitable force). As yet another example, output source 650 can be configured to provide the user with more than two signals. In such embodiments, output source 650 can be configured to provide the user with a signal for each of the following conditions: (1) insufficient force is being applied; (2) excessive force is being applied; and / or (3) sufficient force is being applied. As yet another example, output source 650 can be configured so that the user receives more than two signals that may include signaling for the following conditions (1) excessive force is being applied, within a range just above the force enough; (2) a much greater force is being applied (much greater than a suitable force) and / or (3) sufficient force is being applied. Other conditions contemplated for which signals can be provided to the user include limits for sufficient strength. For example, upper and lower limits of a range of sufficient strength can be signaled to the user. In such examples, a lower limit of the sufficient force range and / or an upper limit of the sufficient force range can be signaled to the user. In this sense, a sufficient strength range can be developed to allow the user some flexibility.
[0070] As stated earlier, signal combinations can be used for any combination of conditions. For example, to signal the user that insufficient force is being applied, a first signal can be audible while a second signal meaning excessive force can be visual. .Any suitable combinations of signals can be used. As yet another example, to signal the user that insufficient force is being applied, a first signal can be visual and comprise a first color while a second signal meaning excessive force can be a second color that contrasts with the first color. Any suitable colors can be used, for example, red, green, yellow, blue, purple, the like, or combinations thereof. Such signal combinations can also be applied in locations where the output source 650 is configured to provide a signal for sufficient strength and / or higher and lower values of dame.
[0071] Several considerations can be taken into account when evaluating the above conditions. For example, mouth feeling, cleaning efficiency, etc. With regard to mouth feeling, for example, mouth care implements that comprise cleaning elements that are very soft can, in general, provide a comfortable mouth feeling for a user under forces that are greater than that of mouth care implements that have elements harder cleaning agents. As another example, cleaning elements that comprise elastomeric materials may be more comfortable for a user and, therefore, may allow greater force to be applied during brushing and still remain within the user's comfort level. With respect to effectiveness, cleaning elements that have surface characteristics, as described in US Patent Nos. 5,722,106; 5,836,769; 6,058,541; 6,018,840; US patent application publications No. 2006/0080794; 2006/0272112; and 2007/0251040, may require less force during brushing to provide sufficient plate cleaning / removal when compared to cleaning elements that have smooth surface characteristics.
[0072] Another consideration that can be taken into account includes clinical safety. For example, a force that provides a good oral sensation to the consumer can cause gum irritation, gum retraction and / or tooth enamel abrasion.
[0073] Several variables can affect the above considerations, for example, oral sensation, efficacy in cleaning, clinical safety. For example, users can apply a specific brushing force while using a toothbrush equipped with a motor and a different force while using a manual toothbrush. As another example, the length of the cleaning elements, the cross-sectional shape of the cleaning elements, for example, diameter, bending properties, etc. Due to the numerous variables that can affect the above considerations, consumer testing, clinical testing and / or robot testing can be used to empirically determine values for: (1) insufficient force being applied; (2) excessive force being applied; and / or (3) sufficient force being applied; (4) a lower limit of the sufficient force range being applied; and / or (5) an upper limit of the sufficient force range being applied, which can also provide comfortable oral sensation, cleaning efficiency and clinical safety.
[0074] Consumer tests and / or clinical tests can provide some insight into an appropriate value for the upper limit of tolerance of sufficient strength for a particular toothbrush and / or an appropriate value for the lower limit of tolerance of enough strength for the particular toothbrush. In general, consumers would try a particular toothbrush and can apply a recommended force when brushing. After brushing, consumers may be asked to provide feedback regarding the tactile sensation of the toothbrush in the oral cavity. Additionally, plaque scans of consumers' oral cavities can be obtained before brushing and then after brushing. The comparison can be made before and after to determine the effectiveness of a particular force. Above all, clinical tests can be performed at the upper limit of the force range sufficient to determine gum irritation, gum retraction and / or tooth enamel abrasion at that strength value.
[0075] Similarly, tests with robots can be used to determine the effectiveness of a particular toothbrush at a given strength. In robot tests, in general, a toothbrush is operated by a robotic arm that moves the toothbrush in a brushing motion between the teeth of a model of a mouth cavity. In general, the model's teeth are covered by a synthetic plate that is well known in the art. The robotic arm can apply a predetermined force to the toothbrush during the simulation. After the simulation, it is possible to compare the plate analysis before and after brushing. From the analysis of plaques before and after brushing, a determination of cleanliness / effectiveness can be made. Through iteration, the lowest level of the sufficient force range can be determined for any cleaning element / massage element configuration.
[0076] Each of these consumer tests, clinical tests and tests with robots can provide useful information on force values associated with the following conditions: (1) insufficient force being applied; (2) excessive force being applied; and / or (3) sufficient force being applied; (4) a lower limit of the sufficient force range being applied; and / or (5) an upper limit of the sufficient force range being applied, which can also provide comfortable mouthfeel, as well as cleaning efficiency.
[0077] In some embodiments, an excessively high applied brushing force value may be greater than or equal to about 1 Newton, 1.25 Newtons, 1.5 Newtons, 1.75 Newtons, 2.00 Newtons, 2.10 Newtons, 2.20 Newtons, 2.30 Newtons, 2.40 Newtons, 2.50 Newtons, 2.60 Newtons, 2.75 Newtons, 2.85 Newtons, greater than or equal to about 3.00 Newtons, greater than or equal to about 3.50 Newtons, greater than or equal to about 3.75 Newtons, greater than or equal to about 4.00 Newtons, greater than or equal to about 4.25 Newtons, greater than or equal to about 4.50 Newtons, greater than or equal to about 4.75 Newtons, greater than or equal to about 5.00 Newtons, greater than or equal to about 5.25 Newtons, greater than or equal to about 5.50 Newtons, greater than or equal to about 5.75 Newtons, or greater than or equal to about 6.00 Newtons. In some embodiments, an insufficient force value being applied may be less than or equal to about 5.00 Newtons, about 4.75 Newtons, about 4.5 Newtons, about 4.25 Newtons, about 4, 00 Newtons, about 3.75 Newtons, about 3.5 Newtons, about 3.25 Newtons, about 3.00 Newtons, about 2.75 Newtons, about 2.50 Newtons, about 2.25 Newtons, about 2.00 Newtons, about 1.75 Newtons, about 1.50 Newtons, about 1.25 Newtons, about 1.00 Newton, about 0.75 Newton, or about 0.50 Newton. In some embodiments, the values of a lower limit of a sufficient force range, an upper limit of a sufficient force range and / or the sufficient force range can be selected from any of the values provided above with respect to the conditions of use. excessive force and / or insufficient force.
[0078] The signal provided to the user can be constant, for example, a signal provided to the user throughout the brushing routine. Alternatively, the signal provided to the user can be provided at the end of the brushing routine. For example, where the user applied an excessively high force during most of the brushing routine, the signal provided to the user may trigger a red light or show a visible red signal for a predetermined period of time. As another example, where the user applied a very weak force during most of the brushing routine, the signal provided to the user may trigger a yellow light or show a visible yellow signal for a predetermined period of time. As yet another example, where the user has applied sufficient force during most of the brushing routine, the signal provided to the user may trigger a green light or show a visible green signal for a predetermined period of time.
[0079] In other modalities, the signal can be supplied to the user intermittently during the brushing routine. For example, the signal can be provided to the user at predetermined time intervals. For example, a signal can be provided to the user every 20 seconds. Any suitable time interval can be selected. For example, the time interval between signals can be greater than about 0.1 second, greater than about 0.2 second, greater than about 0.3 second, greater than about 0.4 second, greater than about 0.5 seconds, greater than about 0.6 seconds, greater than about 0.7 seconds, greater than about 0.8 seconds, greater than about 0.9 seconds, greater than about 1 second, greater than about 2 seconds, greater than about 3 seconds, greater than about 4 seconds, greater than about 5 seconds, more than about 6 seconds, more than about 10 seconds, more than about 15 seconds, more than about 20 seconds, more than about 25 seconds, more than 30 seconds, more than 40 seconds, more than 50 seconds , greater than about 60 seconds, and / or less than about 60 seconds, less than about 50 seconds, less than about 40 seconds, less than about 30 seconds, less than about 25 seconds, less than about 20 seconds, less than about 15 seconds, less than about 10 seconds, less than about d and 5 seconds, less than about 4 seconds, less than about 3 seconds, less than about 2 seconds, less than about 1.5 seconds, less than about 1 second, less than about 0.9 seconds, less than about 0.8 seconds, less than about 0, 7 seconds, less than about 0.6 seconds, less than about 0.5 seconds, less than about 0.4 seconds, less than about 0.2 seconds, or less than about 0.1 seconds.
[0080] Still with reference to Figures 6A and 6B, the toothbrush 610 of the present invention can additionally comprise a processor. The processor can be in signal communication with the force sensor 660 and the output source 650. The processor can be used to record user performance during brushing. For example, the user can brush for a predetermined period of time, for example, two minutes, after which the processor can cause the output source 650 to provide the user with a signal indicating sufficient strength was applied during the two minute period. As another example, the processor can cause output source 650 to provide the user with a signal that sufficient force has been applied for about half the two-minute period. As yet another example, the processor can cause output source 650 to provide the user with a signal that excessively high force has been applied throughout and / or more than fifty percent of the two minute period. As yet another example, the processor may cause output source 650 to provide the user with a signal that excessively low force has been applied throughout and / or more than fifty percent of the two minute period. The signals provided to the user may include the signals described previously.
[0081] Additionally, the processor can be useful to eliminate power spikes from the indication. In such embodiments, the processor can serve as a buffer for output source 650 by creating a delay between the occurrence of the condition and the signal provided by output source 650. For example, the processor can be configured to include a five-second delay. so that an excessively high applied brushing force must remain excessively high for at least five seconds before the processor causes the output source 650 to provide a signal to the user. Configured in this way, the processor can filter the input of the force sensor 660 so that the output source 650 does not cause a plurality of intermittent flash signals to the user. The delay can be any suitable delay. For example, in some modes, the delay can be less than about 10 seconds, less than about 9 seconds, less than about 8 seconds, less than about 6 seconds, less than about 5 seconds, less than about 4 seconds, less than about 3 seconds, less than about 2 seconds, less than about 1 second, less than about 0.75 seconds, less than about 0.5 seconds, less than about 0.25 seconds, less than about 0.10 seconds.
[0082] Other suitable mechanisms can be used to reduce and / or eliminate power peaks. For example, in some modalities a low pass filter of at least the first order can be used. In such embodiments, the low-pass filter can prevent a peak power from being transmitted to output source 650 due to the high frequency of the peak power. As another example, the processor can be programmed to include a digital filter that can eliminate power surges by preventing the output of signals. Peak power filtration is described in more detail in US Patent No. 7120960.
[0083] An inter-signal time interval was previously discussed. In some embodiments, the processor can be configured to modify the time interval between the signals provided to the user during a particular brushing routine or over a series of brushing routines. For example, during a first brushing routine, if the user alternates between excessive force and / or insufficient force, the interval between signals to the user may occur in a first interval of time. However, if in the first brushing routine the user also applies a predetermined force to be within the sufficient force range, the signals to the user may occur in a second interval of time. In such a modality, the first time interval can be smaller than the second time interval, thus providing more feedback to the user. In some modalities, the time intervals can be alternated so that the user receives more feedback for forces that are within a predetermined range of sufficient strength.
[0084] As previously stated, the processor can, similarly, modify the time interval between the signals provided to the user over a series of brushing routines. For example, during a first brushing routine, the user may apply excessive force and / or insufficient force during most of the time of the first brushing routine. During the first brushing routine, the time interval between signals may occur in a first time interval. The processor can be configured to process data relating to the force applied during the first brushing routine and to modify the time interval for the next brushing routine. For example, for a second brushing routine, based on the data from the first brushing routine, the processor can modify the time interval between signals during the second brushing routine for a second time interval. The second time interval can be smaller than the first time interval so that the user can receive more feedback during the second brushing routine. If, during the second brushing routine, the user, during most of the time of the second brushing routine, applies a force within a sufficient force range, then the processor can modify the time interval between signals for a third brushing routine. For example, the time interval between signals for the third brushing routine may be less than the second time interval. However, if during the second time interval the user applies, during most of the second brushing routine, a very strong and / or very weak force during most of the time period of the second brushing routine, then the processor can adjust the time interval between signals for the third brushing routine to a value less than the second time interval so that the user receives even more feedback than in the second brushing routine. In some embodiments, the processor can be configured to provide more feedback with respect to a force within the sufficient force range at increasing and / or decreasing time intervals.
[0085] Output source 650 may comprise a plurality of visual components, for example, LEDs. For example, as stated earlier, the visual output signal can comprise a series of light sources that form a bar graph. The use of at least one light source and / or a plurality of light sources to provide feedback to the user is discussed in more detail in US Patent No. 7,120,960 and PCT application serial number IB2010 / 051194, entitled " Electric Toothbrush and Method of Manufacturing an Electric Toothbrush ", filed March 18, 2010.
[0086] For output signals that comprise a visible signal, the provision of a light source, for example, can be in any suitable location. Referring to Figure 6A, some examples of suitable locations include areas in cable region 612; between the neck 616 and the cable region 612. Although the light source can be arranged in the cable region 612, there is a tendency for the light source to be hidden from the user's view by the user's own hand. To facilitate user viewing, an area 557 overlapping neck 616 and cable 612 can be particularly beneficial as the location of the light source. Area 557 can be arranged on a rear surface of toothbrush 610.
[0087] Additionally, the light source can be selected so that it has a wide dispersion angle. The light source can be positioned on the toothbrush so that the light emitted from the light source is in the user's line of sight. In some embodiments, the light source can be positioned so that the light emitted from the light source glows on the user's face. For example, light from the light source can illuminate the user's face when activated. The brightness of the light light on the user's face can facilitate the user's visualization even in the absence of a mirror. In such modalities, the light source can be positioned asymmetrically in relation to a longitudinal axis of the toothbrush 10. In such modalities, the light source can be positioned at an angle towards the user's face.
[0088] The output source 650 can be provided on the toothbrush 610 in any suitable location, for example, cable 612, neck 616 and / or head 614. For example, the output source 650 can be arranged inside the brush of teeth 10; on the surface of the toothbrush 10; or partially inside and partially outside the toothbrush 10.
[0089] In some embodiments, the output source 650 may comprise an external display that is in signal communication with the 610 toothbrush. In such embodiments, the communication between the external display and the 610 toothbrush can be made in any way. proper manner. Some suitable examples of communication between a personal hygiene device, for example, a toothbrush, and an external display are described in US patent applications serial number 61 / 176,618, entitled, "PERSONAL CASER SYSTEMS, PRODUCTS, AND METHODS", filed on May 8, 2009; 61 / 180,617, entitled, "PERSONAL CASER SYSTEMS, PRODUCTS, AND METHODS", filed on May 22, 2009; and in US patent application publication No. 2008/0109973. In such embodiments, the signal discussed in the present invention can be provided to the user through the external display.
[0090] Force sensors 60, 660 and 960 can be formed from a variety of suitable materials. Suitable materials for the 960 force sensor are the materials discussed so far. With respect to force sensors 60 and 660, the materials for these force sensors must be selected so that force sensors 60 and 660 can withstand forces, for example, without permanent deformation, minimal deflection (if any) applied during brushing. In addition, suitable materials can be non-corrosive and rigid. Some suitable examples of materials that can be used for force sensors 60 and 660 include stainless steel, clad steel, high density plastics, the like, and / or combinations thereof. Other examples of suitable materials include polypropylene, acrylonitrile-butadiene-styrene, polyoxy methylene, polyamide, acrylonitrile styrene acrylate, and polyethylene terephthalate (PET).
[0091] In some modalities, recycled plastics and / or of vegetable origin can be used. For example, in some modalities PET can be used. PET can be biobased. For example, PET can comprise from about 25 to about 75%, by weight, of a terephthalate component, and from about 20 to about 50%, by weight, of a diol component, with at least about 1% by weight of at least one of a terephthalate and / or diol component is derived from at least one biobased material. Similarly, the terephthalate component can be derived from a biobased material. Some examples of biobased materials include, but are not limited to, corn, sugar cane, sugar beet, potato, starch, citrus fruit, woody plant, cellulosic lignin, plant oil, natural fiber, oily wood raw material, and a combination thereof.
[0092] Some of the specific components of PET can be biobased. For example, monoethylene glycol and terephthalic acid can be formed from biobased materials. The formation of biobased PET and its manufacture are described in American Patent Application Publications No. 20090246430A1 and 20100028512A1.
[0093] In some embodiments, the toothbrush may include a replaceable head, for example 14, 614 and / or neck 16, 616. Specifically, head 14, 614 can be removable from neck 16, 616 and / or neck 16 , 616 can be removable from the cable region 12, 612. From this point on in this document, either the head 14, 614 removable from the neck 16, 616 or the neck 16, 616 removable from the cable region 12, 612, such elements replaceable will be called "refills". In such embodiments, the processor can be programmed with a plurality of algorithms to establish the default value for a force that is (1) excessively high; (2) very weak; (3) sufficient; (4) a lower limit of a sufficient strength range and / or (5) an upper limit of a sufficient strength range for several different refills. For example, if the upper limit of a sufficient force range for a first refill is 3.00 Newtons and the upper limit of a sufficient brushing force for a second refill is 3.50 Newtons, the processor may be configured to recognize the range value at the upper limit for the first refill and the range value at the upper limit for the second refill. In this way, the processor can be programmed so that the output source 650 provides a signal to the user that corresponds to a particular recharge. Some suitable examples of implements for oral treatment that can recognize a particular refill are described in US Patent Nos. 7,086,111; 7,207,080; and 7,024,717.
[0094] The interconnectivity between the neck 16, 616 and the cable region 12, 612 can be provided in any suitable way. Some suitable modalities are discussed with respect to US Patent Nos. 7,086,111, 7,207,080 and 7,024,717.
[0095] The toothbrush of the present invention may additionally comprise a timer. The timer can be positioned inside the toothbrush or it can be arranged on a remote display. The timer can be configured to start automatically as with the application of a brushing force. Regardless, or in conjunction with the application of the brushing force, the timer can be activated by the movement of the toothbrush. In such embodiments, the toothbrush may comprise accelerometers or another device suitable for measuring / monitoring the movement of the toothbrush. Such devices for monitoring / measuring toothbrush movement are described in US patent application serial number 61 / 116,327, entitled, "PERSONAL CARE SYSTEMS, PRODUCTS, AND METHODS", filed on November 20, 2008. An example A suitable timer is a 555 timer integrated circuit available at many electronics stores where integrated circuits are sold.
[0096] The toothbrush of the present invention may further comprise a power supply as discussed above. The power supply can be any suitable element that can supply power to the toothbrush. A suitable example includes batteries. The battery can be sized to minimize the amount of real states needed inside the toothbrush. For example, when output source 650 consists of a light-emitting element or a vibrating motor (used to signal to the user and not to vibrate the head cleaning elements and / or head movement), the power supply may have a relatively small size, for example, smaller than a AAA battery. In such embodiments, the vibrating device can be relatively small. The battery can be rechargeable or it can be disposable. In addition, a plurality of batteries can be used. In some embodiments, the power supply may include alternating current as supplied by a utility company to a home. Other suitable power supplies are described in US patent application serial number 12/102881, filed on April 15, 2008, entitled, "Personal Care Products and Methods".
[0097] In some modalities, a key operated by the user can be provided that allows the user to control when the indication of one should be started, as well as when the timer should be started. The switch (shown) can be in electrical communication with the power supply and the output signal element signal and / or the timer.
[0098] The cable region, for example 12, 612, can be built from any suitable material. Some examples include polypropylene, nylon, high density polyethylene, other stable moldable polymers, similar, and / or combinations thereof. In some embodiments, the cable region 12, 612, the neck 16, 616 and / or the head 14, 614 can be formed from a first material and include recesses, grooves, grooves, to receive a second material that is different of the first. For example, the cable may include an elastomeric gripping feature or a plurality of elastomeric gripping features. Elastomers among the plurality of elastomeric gripping features may be similar materials or may be different materials, for example, in color, hardness, combinations of these or similar characteristics.
[0099] The elastomeric resources of gripping the cable can be used to overmould, at least in part, a portion of the timer, output signal element, processor, cover and / or power supply. In such modalities, these components can be in electrical communication via wiring that can similarly be overmoulded. Elastomeric gripping features may include portions that are positioned for grip by the user's palm and / or portions that are positioned for grip by the user's thumb and index finger. These elastomeric gripping features can be composed of the same material or can be different, for example, in color, shape, composition, hardness, similar, and / or combinations thereof.
[00100] In some embodiments, the front cover 675 and / or the elastomeric gripping feature may include visual texture or features that provide a visual signal indicating the flexibility of the toothbrush sensor. For example, as shown in Figures 14, the front cover 675 can comprise roughness 1430. The roughness 1430 can provide the consumer with visual communication regarding the flexibility of the toothbrush. As shown, front cover 675 can be configured to include an opening 1450 that can allow output source 650 (shown in Figure 6A) to provide a visual signal to the consumer.
[00101] In some embodiments, the front cover 675 can be transparent and / or translucent. For example, the output source 650 may comprise a white LED and the front cover 675 may comprise a translucent red material. When the white LED is powered, the visual signal provided to the user can be a red visual indication.
[00102] The elastomeric resources of gripping the cable can be in communication with a channel, groove and / or recess, in the neck through a channel, groove, external recess and / or through a channel, groove, internal recess. In some modalities, the elastomeric gripping features may be in communication with a channel, groove and / or recess in the head through a channel, groove and / or internal recess, and / or a channel, groove and / or external recess. Alternatively, the cable grip features may be distinct elements from the head and / or neck features.
[00103] Additionally, for use in the present invention, the term "cleaning elements" is used to refer to any suitable element that can be inserted into the oral cavity. Some suitable elements include tufts of bristles, elastomeric massage elements, elastomeric cleaning elements, massage elements, tongue cleaners, soft tissue cleaners, hard surface cleaners, combinations thereof, and the like. Head 14, 614 can comprise a variety of cleaning elements. For example, head 14, 614 may comprise bristles, abrasive elastomeric elements, elastomeric elements in a particular orientation or arrangement, for example, hinge fins, prophylactic cups, or the like. Some suitable examples of elastomeric cleaning elements and / or massage elements are described in US patent application publications No. 2007/0251040; 2004/0154112; 2006/0272112; and in US Patent Nos. 6,553,604; 6,151,745.The cleaning elements can be tapered, notched, crimped, corrugated, or similar. Some suitable examples of such cleaning elements and / or massage elements are described in US Patent Nos. 6,151,745; 6,058,541; 5,268,005; 5,313,909; 4,802,255; 6,018,840; 5,836,769; 5,722,106; 6,475,553; and in the publication of US patent application No. 2006/0080794.
[00104] The cleaning elements can be attached to the head 14, 614 in any suitable manner. Conventional methods include stapling, tufting free of anchors, and tufting with injection mold. For cleaning elements that comprise an elastomer, these elements may be integrally formed with each other, for example, having an integral base portion and extending out of it.
[00105] The head may comprise a soft tissue cleaner constructed from any suitable material. Some examples of suitable materials include elastomeric materials; polypropylene, polyethylene, etc .; similar, and / or combinations thereof. The soft tissue cleaner can comprise any suitable soft tissue cleaning elements. Some examples of such elements, as well as soft tissue cleaner configurations on a toothbrush are described in US patent applications No. 2006/0010628; 2005/0166344; 2005/0210612; 2006/0195995; 2008/0189888; 2006/0052806; 2004/0255416; 2005/0000049; 2005/0038461; 2004/0134007; 2006/0026784; 20070049956; 2008/0244849; 2005/0000043; 2007/140959; and in US Patent Nos. 5,980,542; 6,402,768; and 6,102,923.
[00106] For the modalities that include an elastomeric element on a first side of the head and an elastomeric element on a second side of the head (opposite the first), the elastomeric elements can be formed integrally via channels or gaps that extend through the material from the head. These channels or openings can allow the elastomeric material to flow through the head during an injection molding process so that the elastomeric elements on the first and second sides can be formed in an injection molding step.
[00107] In modalities that include a soft tissue cleaner, consumer tests, robot tests and / or clinical tests can be performed so that an upper strength limit and a lower strength limit can be established to provide feedback to the user regarding the force applied to the soft tissue, for example, tongue. For modalities that include a soft tissue cleaner, the toothbrush may comprise an accelerometer or other suitable device for monitoring the orientation of the toothbrush. In combination with the applied force, for example, brushing force, the processor can determine whether the soft tissue cleaner is being attached or whether the cleaning elements are being attached. The signal or a plurality of signals can be provided to the user as described here. Providing feedback to the user regarding the force applied to the soft tissue can help the user to avoid soft tissue injuries, for example, papillae, and still achieve effective cleaning. Test method to determine the applied force for which an indication occurs
[00108] The test to determine an applied force for which an indication occurs requires an adjustable frame and a 1097 force indicator (shown in Figure 13). The force indicator used must be capable of providing force readings with at least two places to the right of one tenth (hundredths of a Newton). An appropriate strength indicator is available from Lutron Electronic Enterprise Co., Ltd., and available under model number FG-20KG. Before testing, the strength indicator should be calibrated according to the manufacturer's recommendations, or should be sent to the manufacturer for calibration.
[00109] As shown in Figure 10, place a sample of toothbrush 1000 in a 1050 three-point attachment over the adjustable frame. The three point attachment 1050 will support a toothbrush handle region 1012 through a first point 1002, a second point 1004 and a third point 1006. Points 1002, 1004 and 1006 must be adjusted to eliminate movement of the region cable 1012 during testing. In addition, the toothbrush 1000 must be attached to the accessory 1050, so that the head 1014 (shown in Figure 11) is substantially parallel to a horizontal surface.
[00110] A pull block 1020 is attached to the head 1014 (shown in Figure 11 and covered by the pull block 1020 in Figure 10) of the toothbrush 1000. The pull block 1020 must be produced from a rigid material that allow a force of 10 Newtons to 15 Newtons to be applied to the toothbrush head 1014 1000. As shown in Figure 11, the pull block 1040 must engage a top surface 2075 of the head. No cleaning element 1021 should be positioned between the top surface 2075 and the pull block 1020. If necessary, the cleaning elements 1021, or a portion thereof, can be removed to allow the pull block 1020 to engage properly with the top surface 2075 of the head 1014.
[00111] The pulling block 1020 must be constructed so that a hook 1040 can extend from a bottom side 2090 of the pulling block 1020. The hook 1040 can be fixed in any suitable way to the pulling block 1020. The hook 1040 must be rigidly attached to the pulling block 1020, so that hook 1040 does not move during testing. The hook 1040 must be positioned on the pull block 1020 so that a center line 1041 of the hook 1040 bisects a distance 1060 from the cleaning elements 1021. The distance 1060 is the maximum straight line distance between the cleaning elements further apart from each other along a lateral direction.
[00112] As shown in Figure 12, the hook 1040 must be positioned on the pulling block 1020 so that the center line 1041 bisects a distance 1070 from the cleaning elements 1021. The distance 1070 is the maximum straight line distance between the elements cleaning devices that are further away from each other along a longitudinal direction.
[00113] Hold the power indicator 1097 from the hook 1040 of the pull block 1040. A lower limit (not shown) of the power indicator 1097 should be attached to the horizontal surface to which the head 1014 (shown in Figure 11) of toothbrush is substantially parallel. The strength indicator 1097 is fixed to the horizontal surface so that the strength indicator is perpendicular to the horizontal surface. Lift the adjustable frame until an indication of a predetermined force is provided by the toothbrush 1000. Record the reading on the strength indicator 1097.Repeat the test five times with additional samples of the toothbrush 1000.
[00114] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension displayed as "40 mm" is intended to mean "about 40 mm".

权利要求:
Claims (13)
[0001]
1. Manual toothbrush, characterized by the fact that it comprises: a handle region (12), including a first portion (30) and a second portion (40), the handle region (12) forming a hollow cavity; a force sensor (60) including a head (14), a neck (16) and a distal portion (260), the force sensor (60) being disposed within the hollow cavity; and an electrically powered element; wherein the head (14) includes a plurality of cleaning elements coupled to the head (14), where the force sensor (60) is pivotally connected to at least one of the first portion (30) and the second portion ( 40); wherein the force sensor (60), the first portion (30) and the second portion (40) are a single integral injection molded component; and wherein the electrically powered element is in electrical communication with the force sensor (60) to provide an output signal to the user.
[0002]
2. Manual toothbrush according to claim 1, characterized in that the force sensor (60) is connected to the first portion (30) and / or to the second portion (40) via a spring (280, 290 ).
[0003]
3. Manual toothbrush according to claim 2, characterized in that the spring (280, 290) is a torsion bar that is integrally formed with the force sensor (60).
[0004]
4. Manual toothbrush according to claim 2, characterized in that the spring (280, 290) is a torsion bar that is integrally formed with the first portion (30) and / or the second portion (40) .
[0005]
5. Manual toothbrush according to claim 1, characterized by the fact that it also comprises a first spring (280, 290) connected to the force sensor (60) and the first portion (30) and a second spring (280, 290) connected to the force sensor (60) and the second portion, where the first spring (280, 290), the second spring (280, 290), the force sensor (60), the first portion (30) and the second portion (40) is formed integrally.
[0006]
6. Manual toothbrush according to claim 5, characterized in that a axis of rotation of the force sensor (60) is on the first spring (280, 290) and the second spring (280, 290).
[0007]
7. Manual toothbrush according to claim 1, characterized in that the force sensor (60) comprises a proximal end (270) and a distal end (260), in which the proximal end (270) is arranged at the head end (14) and where the distal end (260) is opposite the proximal end (270) and where a first distance between the proximal end (270) and a pivot axis of the force sensor (60) is less than a second distance between the pivot axis and the distal end (260).
[0008]
8. Manual toothbrush according to claim 7, characterized in that the output signal is provided adjacent to the distal end (260) of the second portion (40).
[0009]
9. Manual toothbrush according to claim 7, characterized by the fact that the first distance is less than about 90% of the second distance.
[0010]
10. Manual toothbrush according to claim 7, characterized by the fact that the first distance is greater than about 10% of the second distance.
[0011]
11.Manual toothbrush according to claim 1, characterized by the fact that the output signal comprises a first visual indication and a second visual indication, in which the first visual indication provides an indication of an adequate amount of force being applied by the user .
[0012]
12. Manual toothbrush according to claim 11, characterized in that the second visual indication provides an indication that the force applied by the user is too high.
[0013]
13. Manual toothbrush according to claim 1, characterized by the fact that the output signal is provided by an LED.

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同族专利:

公开号 | 公开日

US20120110763A1|2012-05-10|

EP2618697A1|2013-07-31|

CN103108569A|2013-05-15|

US8832895B2|2014-09-16|

CN103108569B|2015-11-25|

HK1182910A1|2013-12-13|

BR112013005086A2|2017-07-25|

EP2618697B1|2018-11-28|

WO2012040181A1|2012-03-29|

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法律状态:
2017-10-10| B25A| Requested transfer of rights approved|Owner name: THE GILLETTE COMPANY LLC (US) |

2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2019-09-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

2020-07-14| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|

2020-09-08| B09A| Decision: intention to grant|

2020-12-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/09/2011, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

US38448510P| true| 2010-09-20|2010-09-20|

US61/384,485|2010-09-20|

PCT/US2011/052324|WO2012040181A1|2010-09-20|2011-09-20|Force sensing toothbrush|

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