US20030194678A1 - Apparatus, method and product for treating teeth - Google Patents
Apparatus, method and product for treating teeth Download PDFInfo
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- US20030194678A1 US20030194678A1 US10/424,648 US42464803A US2003194678A1 US 20030194678 A1 US20030194678 A1 US 20030194678A1 US 42464803 A US42464803 A US 42464803A US 2003194678 A1 US2003194678 A1 US 2003194678A1
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- reservoir
- regimen
- agents
- applicator
- dental treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
- A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
- A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
- A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
- A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
- A46B11/0027—Lead-screw mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/225—Handles or details thereof
- A61C17/227—Handles or details thereof with reservoirs, e.g. for toothpaste
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/20—Power-driven cleaning or polishing devices using ultrasonics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/24—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
- A61C17/26—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2204/00—Features not otherwise provided for
- A61C2204/002—Features not otherwise provided for using batteries
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/88—Two- or multipart kits
Definitions
- the present invention relates to apparatus, methods and products for dispensing a material.
- the present invention relates to apparatus, methods and products for providing a material to a surface.
- the present invention relates to dental treatment devices, methods of treating teeth and oral tissue during brushing, and to products containing dental treatment materials.
- the present invention relates to toothbrushes, methods of treating teeth and oral tissue during brushing, and to cartridges containing dental treatment materials.
- the present invention relates to toothbrushes for dispensing dental treatment materials, to methods of treating teeth by dispensing a treatment material from a toothbrush during brushing, and to cartridges containing dental treatment materials for use with dispensing toothbrushes.
- the present invention relates to apparatus, methods and products useful in nail, hair and/or skin care, jewelry making or cleaning, grout cleaning, auto detailing, painting, furniture painting/staining/refinishing, spot burnishing, spot laundry cleaning, and ceramics painting/finishing.
- Periodontal disease is primarily caused by complex aggregates of microorganisms, primarily bacteria, in the crevice regions between the teeth and the teeth and the gums. These aggregates are commonly referred to as dental plaque.
- toothbrush bristles upon which is applied, a dentifrice, such as a paste, gel or powder, to assist in tooth brushing.
- a dentifrice such as a paste, gel or powder
- the toothbrush bristles are then manually manipulated against teeth and gums in an effort to remove, disrupt and disperse dental plaque.
- U.S. Pat. No. 5,276,932, issued Jan. 11, 1994, to Byrd discloses improvements to the traditional manual bristle toothbrush.
- the brush includes a slidable thumb actuated mechanism in the handle mechanically linked to rotary bristles in the head of the toothbrush. Longitudinal reciprocative motion of the thumb mechanism causes rotation of the rotary bristles.
- powered toothbrushes which provide, some sort of manipulating motion to the bristles, for example rectilinear or rotational motion, to assist in brushing.
- powered toothbrushes include, U.S. Pat. Nos. 3,927,435; 5,226,206; 5,289,604; 5,353,460; 5,383,242; 5,476,384; 5,504,959; 5,309,590; and 5,943,723.
- the problem with placing a dentifrice on the bristles is the lack of accurate and repeatable amount of dentifrice.
- the concentration of dentifrice on the bristles is at a maximum just after application of a dentifrice to the bristles, but prior to brushing.
- Commencement of brushing quickly results in a decrease of the concentration of dentifrice on the bristles, and a resulting reduction in the advantage provided by the dentifrice.
- a brushing system which includes at least two material reservoirs, and further includes a tooth brush having bristles, wherein the bristles are in liquid communication with the two material reservoirs.
- a brushing system including at least one material reservoir, wherein the material reservoir comprises at least two materials, and wherein the materials are positioned to sequentially empty from the reservoir.
- the brushing system further includes a tooth brush having bristles, where the bristles are in liquid communication with the at least one material reservoir.
- a method of brushing teeth with a brushing system wherein the brushing system comprises at least two material reservoirs having dental treatment materials positioned within the reservoir, and a tooth brush having bristles, wherein the bristles are in liquid communication with at least two material reservoirs, the method first includes dispensing dental treatment materials from the reservoirs to the bristles. The method then includes contacting the bristles to teeth.
- a method of brushing teeth with a brushing system wherein the brushing system comprises a material reservoir having first and second dental treatment materials positioned within the reservoir, and a tooth brush having bristles, wherein the bristles are in liquid communication with the reservoir, the method first includes dispensing first dental treatment materials from the reservoir to the bristles. The method also includes applying the bristles to teeth. The method even also includes dispensing second dental treatment materials from the reservoir to the bristles. The method then includes applying the bristles to teeth.
- a reservoir system for use with a brush system, wherein the brush system comprises a tooth brush having bristles, and wherein the tooth brush defines a liquid communication passage through the tooth brush to the bristles, the reservoir system includes a body defining a reservoir having a dispensing passage for engaging the liquid communication passage.
- FIG. 1 is an exploded view of brushing apparatus 100 of the present invention, including tooth brush 110 , holder 120 , cartridge assembly 130 , and dispensing actuator 140 .
- FIG. 2 is a view of an electric motor powered brushing apparatus 200 of the present invention, including tooth brush 110 , and dispensing system cartridge holder 120 , electric drive motor 250 .
- FIG. 3 is an exploded view of brushing system 300 , including drive 250 , holder 120 , and dispensing actuator 140 .
- FIG. 4 is an exploded view of brushing system 400 , including holder 120 , and dispensing actuator 140 .
- FIG. 5 is an exploded view of rigid cartridge brushing system 500 , including tooth brush 110 , cartridge assembly 130 , holder 120 , electric drive motor 250 , and having tubes 131 that are rigid.
- FIG. 6 is an exploded view of flexible sachet brushing system 600 , including tooth brush 110 , cartridge assembly 130 , housing 120 , electric motor drive motor 250 , and having cartridges 129 that are flexible.
- FIG. 7 is a view of cartridge 131 of FIG. 1, in which power is provided to bottom of screw 132 to drive piston 134 and seal 136 that in turn pushes material through cartridge housing 133 out opening 138 .
- FIG. 8 is a side view of a two chamber cartridge and a concept which can be used to dispense 2 or more products from a 2 or more chambered cartridge.
- FIGS. 9 and 10 show side and screw cross section view, respectively, of another two chamber cartridge and a concept which can be used to dispense 2 or more products from a 2 or more chambered cartridge.
- the dispensing system of the present invention includes a cartridge assembly of one or more cartridges for storing dental treatment materials, which cartridges may be manually or motor driven to dispense the dental treatment materials, either directly onto the applicator of a tooth brush, or through passages in the tooth brush onto or through an applicator.
- the applicator may be any suitable device for applying dental treatment materials to teeth or to another device, including bristles, hollow dispensing tube (for application of the dental treatment materials directly to the teeth/gums or to another device such as a toothbrush), sponge, and/or nubs (a knobbed, roughened, or multicontoured surface for contacting teeth and/or gums).
- the dispensing system generally also includes a cartridge holder, and a dispensing actuator, as in a knob, button, or similar means.
- FIG. 1 there is shown an exploded view of a manually powered brushing apparatus 100 of the present invention, including tooth brush 110 , and dispensing system cartridge holder 120 , cartridge assembly 130 , and a dispensing actuator 140 .
- Cartridge assembly 130 includes a number of reservoirs shown as cartridges 131 .
- One advantage of a multiple cartridge dispensing system of the present invention is that materials that would be incompatible for storage together, may be stored in separate cartridges and then dispensed together for use at the point of use. Because the materials are mixed at the brush head as needed, there is better control over the amount of product mixed, resulting in minimal or no wasted mixed product to discharge or waste after use.
- Tooth brush 110 includes bristles 111 , brush head 113 , duckbills 117 , neck 115 , body 116 , and connector 118 .
- any suitable reservoir or cartridge may be utilized in the present invention. It should be understood that the reservoir or cartridge utilized may be fully or partially internal to the dispensing system, or fully or partially external to the system, and may or may not be removable from the system. Additionally, the reservoir or cartridge utilized may be permanent to the system, or may be disposable, including a single use disposable reservoir.
- suitable reservoirs include positive displacement type reservoirs which are generally rigid-walled such as a cartridge, and also include pump-evacuated type reservoirs which are generally soft-walled such as sachets, bladders, and blisters.
- FIG. 7 showing cartridge 131 of FIG. 1, with a piston 134 and seal 136 that pushes material through the cartridge housing 133 .
- Power provided to gear 137 rotates screw 132 to drive piston 134 .
- An optional cap may be provided to seal cartridge 131 when not in use.
- the taper or pitch of the screws for each of the reservoirs may be the same or different, to effect various ratios of material delivery.
- the cartridges may be adapted for dispensing equal or different amounts of material.
- the cartridges for materials A, B, and C will be adapted to dispense at a ratio of 1:1:1.
- the cartridges for materials A, B, and C will be adapted to dispense at a ratio of 1:3:1.
- the dispensing amount of any particular cartridge may be adjusted by any suitable means, non-limiting examples of which include varying the motor speed to the dispensing mechanism, and include changing the mechanical advantage of the dispensing mechanism (for example by substituting screws having various screw pitch or by utilizing different ratio gears for driving the screw).
- rate and amount of product can be controlled by means such as orifices, speed/timing relationships, pumps, etc.
- the dispensing system of the present invention may be utilized for the delivery of very precise, controlled or efficacious amounts of treatment materials. This is very important when close tolerances are required in the ratios between the various treatment materials that make up a total treatment regimen. These required amounts may be delivered utilizing the screw and gear delivery system as described above, in which a known rotation of the screw will deliver a precise, controlled and repeatable amount of material.
- One or more of the cartridges of the present invention may also be loaded with dental treatment material in a sequential fashion.
- one particular cartridge may be loaded with materials A, B, C and then D, so that the cartridge will sequentially dispense material A, then material B, then material C and then material D.
- a cartridge may be loaded to sequentially dispense a tooth cleaner, then a tooth polisher, then a fluoride agent, and finally a tooth sealant. Any suitable desired sequential loading of material may be utilized.
- Sequential dispensing of materials may also be accomplished by sequentially dispensing from different cartridges or combinations of cartridges.
- a rinse A
- a first component of tooth cleaner B
- a second component of tooth cleaner C
- a fluoride agent D
- the desired dispensing may be from cartridge A (rinse), then simultaneously from cartridges B and C (first and second components of tooth cleaner), then from cartridge A again (rinse), and then from cartridge D (fluoride agent).
- N number of treatment regimens could be positioned in the material reservoir, with each regimen comprising material A and a material B.
- N is generally an integer of at least 1, preferably at least 2, more preferably at least 7, even more preferably at least 31, still more preferably at least 90, and yet more preferably at least 365.
- This series of N regimens is positioned to allow emptying of substantially all of the material A of the Nth regimen prior to application of the material B of the Nth regimen, and positioned to allow emptying of substantially all of the material B of the Nth regimen prior to application of the material of the next or (N+1)th regimen.
- each regimen further comprises three materials A, B, and C, positioned to allow emptying of substantially all of the first material A of the Nth regimen prior to application of the second material B and third material C of the Nth regimen, and to allow emptying of substantially all of the second material B of the Nth regimen prior to application of the third material C of the Nth regimen, and positioned to allow emptying of substantially all of the third material C of the Nth regimen prior to application of the first material A of the (N+1)th regimen.
- substantially emptying shall mean that at least about 25 weight percent, preferably at least about 50 weight percent, more preferably at least about 75 weight percent, even more preferably at least about 95 weight percent, still more preferably at least about 98 weight percent, and yet more preferably at least about 99 weight percent, of the one material will empty before the other starts emptying.
- a regulator or switch system able to allow selection of a cartridge or combination of cartridges may be utilized.
- a rotational or other positioning system my be utilized to orient one or more of the desired cartridges to be in fluid communication with the dispenser, with the remaining cartridges out of fluid communication.
- a system which positions the dispenser to be in fluid communication with one or more cartridges as desired may also be utilized.
- a system which positions both the dispenser and the desired cartridges may also be utilized.
- Another suitable system includes one which utilizes a conduit, such as a tube or hose, between each of the reservoirs and the dispenser, with conduits selectively opened or closed by switches to deliver material as desired.
- any suitable combination of sequential treatment regimen may be created from the list of dental treatment materials as provided below.
- Another non-limiting example of a sequential treatment regimen includes high strength whitening followed by whitening maintenance treatment.
- Even another non-limiting example of a sequential treatment regimen includes stanous fluoride followed by a stain removing treatment.
- Still another non-limiting example of a sequential treatment regimen includes whitening agent and sealer to prevent staining.
- Yet another non-limiting example of a sequential treatment regimen includes aggressive medication followed by a neutralizing agent.
- Even still another non-limiting example of a sequential treatment regimen includes tooth cleaner followed by breath freshener/treatment.
- Even yet another non-limiting example of a sequential treatment regimen includes tooth cleaner, tooth polisher, then sealant.
- some brushing systems may be predisposed to dispense in a certain order.
- the brushing system would be available to dispense automatically from cartridge A, then from cartridges B and C, then from cartridge A, and finally from cartridge D.
- the brushing system could even contain a preprogrammed or programmable microprocessor to control the dispensing of material.
- the microprocessor would be connected to the mechanism which control cartridge selection and product dispensing. This control can include the selection of the desired cartridges or combinations of cartridges, the order of dispensing, as well as the amount dispensed from each cartridge.
- this microprocessor system could be programmed to provide alarms or messages to a small display screen to remind the user to dispense certain materials at certain times. For example, for two dental treatments one to be dispensed from cartridge A every 4 hours, the other to be dispensed from cartridge B every six hours, the brushing system could be programmed to so dispense, with reminders/alarms to the user to use the brush at the appropriate times.
- a given pre-loaded multiple cartridge system may further include its own executable instructions on a medium (for example a small chip, disk, microprocessor, or Radio Frequency ID tag to activate proprietary program functions) that is loaded into the brushing system to dispense material from the cartridge system as desired.
- a medium for example a small chip, disk, microprocessor, or Radio Frequency ID tag to activate proprietary program functions
- Cartridge assembly 130 fits inside cartridge holder 120 , with one or more of the cartridges 131 in liquid communication with stems 37 .
- dispensing actuator 140 must be sufficiently accessible to all rotation of dispenser actuator 140 .
- pre-loaded cartridges 131 may be available as single use disposable cartridges, multiple use disposable cartridges, or refillable cartridges, and that empty cartridges may be available for loading with suitable materials by the end user.
- FIG. 5 there is shown an exploded view of rigid cartridge brushing system 500 , including tooth brush 110 , cartridge assembly 130 , holder 120 , electric drive motor 250 , and having cartridges 131 that are rigid.
- End cap 258 is positioned on the end of drive housing 250 and provides for convenient access to the inside of drive housing 250 .
- gear housing 53 is held in place by a number of retaining screws 122 which pass through interlock ring 59 and screw into housing 120 .
- a number of gears 137 are positioned on top of gear housing 53 and held positioned by a number of springs 55 and screws 51 .
- Dispensing actuator 140 fits around and engages gears 137 .
- Tooth brush 110 passes through transition 22 and connects to drive shaft 56 . Toothbrush 110 consists of duckbill 117 , brush head 113 , bristles 11 , neck 115 , body 116 , and connector 118 .
- a “duckbill” is generally described as a resiliant flow regulator or check valve that includes a pair of lips arranged in a converging relationship to define an open end and a normally closed end. At the normally closed end the lips are disposed adjacent to each other to define a normally closed slit and define inner and outer surfaces for the lips. As fluid passes through the lips increased pressure will cause a larger opening, increasing the flow rate. With no pressure acting on the lips, closure prevents any material from entering opposite the desired material flow direction.
- Drive shaft 56 is connected to coupling 54 , which is in turn connected to coupling 52 by drive shaft 121 .
- FIG. 6 is an exploded view of flexible sachet brushing system 600 , including tooth brush 110 , cartridge assembly 130 , housing 120 , electric motor drive motor 250 , and having sachet 129 that are flexible. Inside holder 120 are positioned one or more sachets 129 .
- the delivery mechanism includes stems 23 in liquid communication with sachets 129 and flexible tubes 31 , o-rings 25 , manifold 27 , steel balls 29 , springs 28 .
- Anvil 45 , pump actuator 42 , button 43 , and retainer disk 41 make up the remainder of the fluid delivery system.
- Included in the connection between housing 120 and tooth brush 110 are cap 61 , steel balls 62 and springs 63 . Tooth brush 110 passes through transition 22 and connects to drive shaft 56 and includes duckbills 117 , bristles 111 , brush head 113 , neck 115 , body 116 , and connector 118 .
- dental treatment materials may be selected from the group consisting of anti-bacterial agents, bleaching agents, breath conditioning agents, buffers, carriers, cleaners, coatings, colorants or dyes (to impart color to the material), coloring or dying agents (for coloring or dying the tooth), conditioners, emulsifiers, foaming agents, fillers, flavors, flow agents, fluorides, gelling agents, inert agents, medicines, oxidizing agents, polish, preservatives, sealants, scrubbing agents, stain removers, surfactants, tartar control agents, thickening agents, viscosity agents, washes, whiteners, and the like.
- These dental treatment materials may be in emulsion, gel, granule, liquid, paste, powder, or slurry form.
- certain dental treatment materials or combination of dental treatment materials perform better in concentrated form, without the addition of solvents, diluents, thickening agents, viscosity agents, buffers, carriers, emulsifiers, surfactants, and the like.
- those dental treatment materials or combination of materials be provided without the presence of such solvents, diluents, thickening agents, viscosity agents, buffers, carriers, emulsifiers, surfactants, and the like since the treatment materials are delivered from within the bristles.
- Non-limiting examples of suitable fluoride treatments include stannous fluoride, sodium fluoride, and sodium monofluorophosphate.
- Current dental treatment materials contain solvents, dilutants, thickening agents, and the like to provide support for the treatment material while dispensed on top of toothbrush bristles.
- the preferred fluoride treatment is sodium fluoride.
- the concentration of the various dental treatment materials will be chosen according to health and treatment standards as are known in the dental treatment art.
- the dental treatment materials of the present invention will have a viscosity suitable for use in tooth treatment applications and methods.
- viscosity shall refer to “dynamic viscosity” and is defined as the ratio of the shearing stress to the rate of deformation.
- the viscosity When measured at a shear rate of 1 seconds ⁇ 1 , the viscosity will have a range with the lower end of the range generally about 0.0025 poise, preferably about 0.1 poise, and more preferably about 75 poise, with the upper end of the range being selected independently of the lower end of the range and generally about 10,000 poise, preferably about 5,000 poise, and more preferably about 1,000 poise.
- suitable viscosity ranges when measured at a shear rate of 1 seconds ⁇ 1 includes, about 0.0025 poise to about 10,000 poise, about 0.1 poise to about 5,000 poise, about 75 poise to about 1000 poise, and about 0.1 poise to about 10,000 poise.
- the viscosity When measured at a shear rate of 100 seconds ⁇ 1 , the viscosity will have a range with the lower end of the range generally about 0.0025 poise, preferably about 0.05 poise, and more preferably about 7.5 poise, with the upper end of the range being selected independently of the lower end of the range and generally about 1,000 poise, preferably about 100 poise, and more preferably about 75 poise.
- suitable viscosity ranges when measured at a shear rate of 100 seconds 31 1 includes, about 0.0025 poise to about 1,000 poise, about 0.05 poise to about 100 poise, about 7.5 poise to about 75 poise, and about 0.05 poise to about 1,000 poise.
- the viscosity When measured at a shear rate of 10,000 seconds, the viscosity will have a range with the lower end of the range generally about 0.0025 poise, preferably about 0.05 poise, and more preferably about 5 poise, with the upper end of the range being selected independently of the lower end of the range and generally about 500 poise, preferably about 50 poise.
- suitable viscosity ranges when measured at a shear rate of 10,000 seconds ⁇ 1 includes, about 0.0025 poise to about 500 poise, about 0.05 poise to about 50 poise, about 5 poise to about 50 poise, and about 0.05 poise to about 500 poise.
- toothbrush 110 includes body 116 , neck 115 , bristle head 113 , duckbills 117 , bristles 111 , and engaging connector 118 . While not shown, toothbrush 110 includes one or more passages extending from engaging connector 118 to duckbills 117 . In assembly, flexible delivery tubes 31 and 121 and cap 61 engage to provide liquid communication between sachets 129 and bristles 111 .
- cartridge assembly 130 of cartridges 131 with suitable dental treatment materials are positioned in holder 120 , with tooth brush 110 affixed to drive shaft 56 .
- Dispensing actuator 140 engages cartridge gear 137 . Rotation of dispensing actuator 140 provides rotational energy to dispense dental treatment material through brush 110 and duckbills 117 then to bristles 111 .
- an electric motor powered brushing apparatus 200 of the present invention, including tooth brush 110 , and dispensing system cartridge holder 120 , electric drive motor 250 .
- Cartridge assembly 130 resides in holder 120 .
- Operation of brushing apparatus 200 is similar to that of brushing apparatus 100 except that an electric motor drive 250 has replaced the manual method of brushing.
- brushing systems 300 and 400 respectively, with brushing system 300 including drive 250 , holder 120 , and dispensing actuator 140
- brushing system 400 includes holder 120 , and dispensing actuator 140
- Both of these brushing systems 300 and 400 include dispensing cap 50 having a dispensing tip 55 in liquid communication with cartridges 131 residing in holder 120 for dispensing the dental treatment material directly onto the tooth brush bristles.
- cartridge assembly 130 resides in holder 120 . In operation, these embodiments are powered sufficiently to cause dental treatment materials to dispense from dispensing tip 55 for application to tooth brush bristles.
- the tooth brushing system of the present invention finds utility mainly for use in the care of human teeth, although utility may also be found in animal husbandry, pet care, and veterinary applications.
- FIG. 8 there is shown two chamber cartridge 300 A, a concept which can be used to dispense 2 or more products from a 2 or more chambered cartridge.
- the multiple products can be dispense simultaneously or individually.
- housing 301 Within housing 301 are 2 chambers, upper fluid chamber 320 , and lower fluid chamber 321 , but one can easily see that more than 2 can be utilized.
- Each chamber has a separate piston, upper piston 305 and lower piston 306 , which are threaded respectively through upper drive screw 302 and lower drive screw 303 .
- Upper piston 305 in top chamber 320 is threaded through screw 302 of a smaller diameter than piston 306 in the bottom chamber.
- Screw 302 for top chamber piston 305 is positioned inside of screw 303 for bottom chamber piston 306 .
- Each chamber 320 and 321 is respectively in fluid communication with separate exit channels 311 and 310 .
- Rotation of upper piston screw 302 and lower piston screw 303 with respectively, drive gear 308 and drive gear 307 , causes the products contained in the respective chambers 320 or 321 , to be forced out through the respective exit channels 311 or 310 .
- Rotation of the two screws 302 and 303 can be accomplished simultaneously, to get both products at the same time, or individually to get one product at a time.
- FIGS. 9 and 10 there respectively shown side view and screen cross section view of two chamber cartridge 300 B, which can be used to dispense 2 or more products from a 2 or more chambered cartridge.
- the multiple products can be dispense simultaneously or individually from upper fluid chamber 320 through fluid discharge 311 , and/or from lower fluid chamber 321 through fluid discharge 310 .
- housing 301 has 2 chambers, but one can easily see that more than 2 can be utilized.
- rotation of central screw 304 is accomplished by rotation of knob, gear, or other means 309 attached to screw 304 at the bottom of housing 301 as shown, or in some other location/position so as to drive rotation of the screw.
- Central drive screw 304 has two flow channels 310 and 311 through the center of it.
- Flow channel 311 is in fluid communication with the top chamber 320 and the other channel 310 is in fluid communication with bottom chamber 321 .
- Rotation of screw 304 will drive upper piston 305 and lower piston 306 upward, forcing the product through into fluid inlet channels 315 and 314 , respectively, and subsequently out through channels 311 and 310 , respectively.
- Upper chamber valve 312 and lower chamber valve 313 can be used to shut off flow through channels 311 and 310 , respectively.
- piston to screw overrunning interface 330 Also shown is piston to screw overrunning interface 330 .
- the piston in the chamber which is in fluid communication with the valve which is shut off is designed to slide down the threads of the screw when internal pressure in the chamber reaches a higher level than normal due too the flow passage being shut off.
- the hollow screw could be part of the brush head and stem, or a dispensing nozzle, and therefore to dispense product up through a brush head or dispensing head, a person could just rotate the cartridge body or housing while holding the brush head or dispensing head stationary, or visa versa.
- the dispensing system of the present invention has been illustrated mainly by reference to in dental care, it should be understood that the dispensing system finds utility in a wide variety of arts.
- the dispensing system my be used alone to dispense a wide variety of materials, or may be used in combination with a wide variety of tools or instruments.
- the dispensing system may be utilized in nail, hair and/or skin care (for humans or animals) to dispense, either directly or through a brush or other applicator, conditioners, coloring, creams, cleanser, emollients, lotions, medicines, polish, softeners, and/or any other nail, hair or skin treatment material.
- the dispensing system may be utilized in jewelry making or cleaning, grout cleaning, auto detailing, painting, furniture painting/staining/refinishing, spot burnishing, spot laundry cleaning, and ceramics painting/finishing.
- the dispenser system of the present invention finds utility in hair coloring with a wide variety of manual, powered, sonic, or ultrasonic applicator heads.
Abstract
A brushing system including a multiple cartridge dispensing system which dispenses the treatment material either directly onto brush bristles, or through the brush to the bristles. A multiplicity of materials may be provided to the cartridges for use in brushing. In addition to use in dental care, the system finds utility in hair coloring, spot laundry cleaning, skin and nail care, and polishing, as well as numerous others.
Description
- This application is a continuation of U.S. application No. 09/721,431, filed Nov. 22, 2000, which is incorporated herein by reference.
- The present invention relates to apparatus, methods and products for dispensing a material. In another aspect, the present invention relates to apparatus, methods and products for providing a material to a surface. In even another aspect, the present invention relates to dental treatment devices, methods of treating teeth and oral tissue during brushing, and to products containing dental treatment materials. In still another aspect, the present invention relates to toothbrushes, methods of treating teeth and oral tissue during brushing, and to cartridges containing dental treatment materials. In yet another aspect, the present invention relates to toothbrushes for dispensing dental treatment materials, to methods of treating teeth by dispensing a treatment material from a toothbrush during brushing, and to cartridges containing dental treatment materials for use with dispensing toothbrushes. In even still another aspect, the present invention relates to apparatus, methods and products useful in nail, hair and/or skin care, jewelry making or cleaning, grout cleaning, auto detailing, painting, furniture painting/staining/refinishing, spot burnishing, spot laundry cleaning, and ceramics painting/finishing.
- Periodontal disease is primarily caused by complex aggregates of microorganisms, primarily bacteria, in the crevice regions between the teeth and the teeth and the gums. These aggregates are commonly referred to as dental plaque.
- Outside of the dentist's office, brushing with conventional toothbrushes and flossing are currently the standard methods of removing, disrupting and dispersing dental plaque.
- The oldest and most common type of toothbrush is the traditional manual toothbrush, having bristles upon which is applied, a dentifrice, such as a paste, gel or powder, to assist in tooth brushing. The toothbrush bristles are then manually manipulated against teeth and gums in an effort to remove, disrupt and disperse dental plaque.
- U.S. Pat. No. 5,276,932, issued Jan. 11, 1994, to Byrd, discloses improvements to the traditional manual bristle toothbrush. The brush includes a slidable thumb actuated mechanism in the handle mechanically linked to rotary bristles in the head of the toothbrush. Longitudinal reciprocative motion of the thumb mechanism causes rotation of the rotary bristles.
- In addition to manual toothbrushes, there are powered toothbrushes, which provide, some sort of manipulating motion to the bristles, for example rectilinear or rotational motion, to assist in brushing. Examples of powered toothbrushes include, U.S. Pat. Nos. 3,927,435; 5,226,206; 5,289,604; 5,353,460; 5,383,242; 5,476,384; 5,504,959; 5,309,590; and 5,943,723.
- Whether using a manual or powered toothbrush, the problem with placing a dentifrice on the bristles, is the lack of accurate and repeatable amount of dentifrice. For example, the concentration of dentifrice on the bristles is at a maximum just after application of a dentifrice to the bristles, but prior to brushing. Commencement of brushing quickly results in a decrease of the concentration of dentifrice on the bristles, and a resulting reduction in the advantage provided by the dentifrice.
- While it is possible to occasionally stop brushing, and reapply the dentifrice to the bristles, a more practical approach would be to provide the toothbrush with a reservoir from which the dentifrice is dispensed during brushing, either intermittently or continuously.
- Such an idea is not new. For example, U.S. Pat. No. 730,040, issued Jun. 2, 1903 to McKinley et al., discloses a toothbrush having a receptacle for feeding a liquid dentifrice into the bristles of the brush; U.S. Pat. No. 3,217,720, issued Nov. 16, 1965 to Cyzer, discloses a toothbrush with a liquid dentifrice container; and U.S. Pat. 5,909,977, issued Jun. 8, 1999 to Kuo, discloses a dentifrice dispensing toothbrush utilizing a refillable cartridge for storing dentifrice material and a compressible elastic button for pumping dentifrice material to the brush head. Further development of this idea includes the use of hollow bristles through which the dentifrice flows as disclosed in U.S. Pat. No. 5,309,590, issued May 10, 1994 to Giuliani et al.
- Recent developments in the fight against periodontal disease includes medications for inhibiting or killing bacteria responsible for periodontal disease, and the use of such medications has been promoted to the public for such a purpose. Such medications may be used in toothpaste, mouthwash, or solutions applied to the areas of interest. However, such medications are typically expensive when used on a daily basis, have been found to stain teeth in some cases with prolonged use, and in other cases, such as when they are in a mouthwash, are only marginally effective. Applying medication with brushing is convenient for the user and results in the treated area simultaneously undergoing cleaning and the application of medication. However, medication is typically not carefully applied in controlled amounts during brushing. There currently is no convenient way of assuring the application of only therapeutic amounts which require precision dosing and/or precision ratio control, so as to not cause tooth or oral tissue damage and/or prevent waste of the medication, while still being fully effective.
- However, in spite of the above advancements, there still exists a need in the art for apparatus, methods and products for treating teeth.
- There is another need in the art for apparatus, methods and products for treating teeth, which do not suffer from the disadvantages of the prior art apparatus, methods and products.
- These and other needs in the art will become apparent to those of skill in the art upon review of this specification, including its drawings and claims.
- It is an object of the present invention to provide for apparatus, methods and products for treating teeth and/or oral tissue.
- It is another object of the present invention to provide for apparatus, methods and products for treating teeth, which do not suffer from the disadvantages of the prior art apparatus, methods and products.
- These and other objects of the present invention will become apparent to those of skill in the art upon review of this specification, including its drawings and claims.
- According to one embodiment of the present invention, there is provided a brushing system, which includes at least two material reservoirs, and further includes a tooth brush having bristles, wherein the bristles are in liquid communication with the two material reservoirs.
- According to another embodiment of the present invention, there is provided a brushing system including at least one material reservoir, wherein the material reservoir comprises at least two materials, and wherein the materials are positioned to sequentially empty from the reservoir. The brushing system further includes a tooth brush having bristles, where the bristles are in liquid communication with the at least one material reservoir.
- According to even another embodiment of the present invention, there is provided a method of brushing teeth with a brushing system, wherein the brushing system comprises at least two material reservoirs having dental treatment materials positioned within the reservoir, and a tooth brush having bristles, wherein the bristles are in liquid communication with at least two material reservoirs, the method first includes dispensing dental treatment materials from the reservoirs to the bristles. The method then includes contacting the bristles to teeth.
- According to still another embodiment of the present invention, there is provided a method of brushing teeth with a brushing system, wherein the brushing system comprises a material reservoir having first and second dental treatment materials positioned within the reservoir, and a tooth brush having bristles, wherein the bristles are in liquid communication with the reservoir, the method first includes dispensing first dental treatment materials from the reservoir to the bristles. The method also includes applying the bristles to teeth. The method even also includes dispensing second dental treatment materials from the reservoir to the bristles. The method then includes applying the bristles to teeth.
- According to yet another embodiment of the present invention, there is provided a reservoir system for use with a brush system, wherein the brush system comprises a tooth brush having bristles, and wherein the tooth brush defines a liquid communication passage through the tooth brush to the bristles, the reservoir system includes a body defining a reservoir having a dispensing passage for engaging the liquid communication passage.
- These and other embodiments of the present invention will become apparent to those of skill in the art upon review of this specification, including its drawings and claims.
- FIG. 1 is an exploded view of brushing
apparatus 100 of the present invention, includingtooth brush 110,holder 120,cartridge assembly 130, and dispensingactuator 140. - FIG. 2 is a view of an electric motor powered brushing
apparatus 200 of the present invention, includingtooth brush 110, and dispensingsystem cartridge holder 120,electric drive motor 250. - FIG. 3 is an exploded view of brushing
system 300, includingdrive 250,holder 120, and dispensingactuator 140. - FIG. 4 is an exploded view of brushing
system 400, includingholder 120, and dispensingactuator 140. - FIG. 5 is an exploded view of rigid
cartridge brushing system 500, includingtooth brush 110,cartridge assembly 130,holder 120,electric drive motor 250, and havingtubes 131 that are rigid. - FIG. 6 is an exploded view of flexible
sachet brushing system 600, includingtooth brush 110,cartridge assembly 130,housing 120, electricmotor drive motor 250, and havingcartridges 129 that are flexible. - FIG. 7 is a view of
cartridge 131 of FIG. 1, in which power is provided to bottom ofscrew 132 to drivepiston 134 and seal 136 that in turn pushes material throughcartridge housing 133 out opening 138. - FIG. 8 is a side view of a two chamber cartridge and a concept which can be used to dispense 2 or more products from a 2 or more chambered cartridge.
- FIGS. 9 and 10 show side and screw cross section view, respectively, of another two chamber cartridge and a concept which can be used to dispense2 or more products from a 2 or more chambered cartridge.
- The dispensing system of the present invention includes a cartridge assembly of one or more cartridges for storing dental treatment materials, which cartridges may be manually or motor driven to dispense the dental treatment materials, either directly onto the applicator of a tooth brush, or through passages in the tooth brush onto or through an applicator. The applicator may be any suitable device for applying dental treatment materials to teeth or to another device, including bristles, hollow dispensing tube (for application of the dental treatment materials directly to the teeth/gums or to another device such as a toothbrush), sponge, and/or nubs (a knobbed, roughened, or multicontoured surface for contacting teeth and/or gums). The dispensing system generally also includes a cartridge holder, and a dispensing actuator, as in a knob, button, or similar means.
- Referring first to FIG. 1, there is shown an exploded view of a manually
powered brushing apparatus 100 of the present invention, includingtooth brush 110, and dispensingsystem cartridge holder 120,cartridge assembly 130, and a dispensingactuator 140. -
Cartridge assembly 130 includes a number of reservoirs shown ascartridges 131. One advantage of a multiple cartridge dispensing system of the present invention, is that materials that would be incompatible for storage together, may be stored in separate cartridges and then dispensed together for use at the point of use. Because the materials are mixed at the brush head as needed, there is better control over the amount of product mixed, resulting in minimal or no wasted mixed product to discharge or waste after use. -
Tooth brush 110 includes bristles 111,brush head 113,duckbills 117,neck 115,body 116, andconnector 118. - Any suitable reservoir or cartridge may be utilized in the present invention. It should be understood that the reservoir or cartridge utilized may be fully or partially internal to the dispensing system, or fully or partially external to the system, and may or may not be removable from the system. Additionally, the reservoir or cartridge utilized may be permanent to the system, or may be disposable, including a single use disposable reservoir. Non-limiting examples of suitable reservoirs include positive displacement type reservoirs which are generally rigid-walled such as a cartridge, and also include pump-evacuated type reservoirs which are generally soft-walled such as sachets, bladders, and blisters.
- As a non-limiting example, reference is made to FIG. 7, showing
cartridge 131 of FIG. 1, with apiston 134 and seal 136 that pushes material through thecartridge housing 133. Power provided to gear 137 rotatesscrew 132 to drivepiston 134. An optional cap, may be provided to sealcartridge 131 when not in use. Of course, for reservoirs having the screw type mechanism as shown in FIG. 7, it should be understood that the taper or pitch of the screws for each of the reservoirs, may be the same or different, to effect various ratios of material delivery. - Manual rotation of dispensing
actuator 140 causes rotation ofcartridge gear 137. - In the practice of the present invention, the cartridges may be adapted for dispensing equal or different amounts of material. For example, for a required mixture of materials A, B, and C, in a ratio of 1:1:1, the cartridges for materials A, B, and C will be adapted to dispense at a ratio of 1:1:1. As another example, for a required mixture of materials A, B, and C, in a ratio of 1:3:1, the cartridges for materials A, B, and C will be adapted to dispense at a ratio of 1:3:1.
- The dispensing amount of any particular cartridge may be adjusted by any suitable means, non-limiting examples of which include varying the motor speed to the dispensing mechanism, and include changing the mechanical advantage of the dispensing mechanism (for example by substituting screws having various screw pitch or by utilizing different ratio gears for driving the screw). For other variations of cartridge designs, rate and amount of product can be controlled by means such as orifices, speed/timing relationships, pumps, etc.
- The dispensing system of the present invention may be utilized for the delivery of very precise, controlled or efficacious amounts of treatment materials. This is very important when close tolerances are required in the ratios between the various treatment materials that make up a total treatment regimen. These required amounts may be delivered utilizing the screw and gear delivery system as described above, in which a known rotation of the screw will deliver a precise, controlled and repeatable amount of material.
- One or more of the cartridges of the present invention may also be loaded with dental treatment material in a sequential fashion. For example, one particular cartridge may be loaded with materials A, B, C and then D, so that the cartridge will sequentially dispense material A, then material B, then material C and then material D. As a nonlimiting example, a cartridge may be loaded to sequentially dispense a tooth cleaner, then a tooth polisher, then a fluoride agent, and finally a tooth sealant. Any suitable desired sequential loading of material may be utilized.
- Sequential dispensing of materials may also be accomplished by sequentially dispensing from different cartridges or combinations of cartridges. As a non-limiting example only, for a system with cartridges A, B, C and D containing respectively, a rinse (A), a first component of tooth cleaner (B), a second component of tooth cleaner (C), and a fluoride agent (D), the desired dispensing may be from cartridge A (rinse), then simultaneously from cartridges B and C (first and second components of tooth cleaner), then from cartridge A again (rinse), and then from cartridge D (fluoride agent).
- It should also be understood, that a number of repeatable sequences can also be dispensed from either one cartridge or a combination of cartridges. For example, N number of treatment regimens could be positioned in the material reservoir, with each regimen comprising material A and a material B. N is generally an integer of at least 1, preferably at least 2, more preferably at least 7, even more preferably at least 31, still more preferably at least 90, and yet more preferably at least 365. This series of N regimens is positioned to allow emptying of substantially all of the material A of the Nth regimen prior to application of the material B of the Nth regimen, and positioned to allow emptying of substantially all of the material B of the Nth regimen prior to application of the material of the next or (N+1)th regimen. Of course, the Nth (or last) regimen will empty after all of the N−1 (or second to last) regimen has substantially emptied. More specifically, the last material of the Nth (or last, or in the case of N=1, the only) regimen, will empty after all of the second to last material of the Nth (or last, or in the case of N=1, the only) regimen.
- It should be understood that while the regimen above is illustrated as having materials A and B, and suitable number of materials may be utilized. As another non-limiting example, The system of claim14 wherein each regimen further comprises three materials A, B, and C, positioned to allow emptying of substantially all of the first material A of the Nth regimen prior to application of the second material B and third material C of the Nth regimen, and to allow emptying of substantially all of the second material B of the Nth regimen prior to application of the third material C of the Nth regimen, and positioned to allow emptying of substantially all of the third material C of the Nth regimen prior to application of the first material A of the (N+1)th regimen.
- As used herein, “substantially emptying” shall mean that at least about 25 weight percent, preferably at least about 50 weight percent, more preferably at least about 75 weight percent, even more preferably at least about 95 weight percent, still more preferably at least about 98 weight percent, and yet more preferably at least about 99 weight percent, of the one material will empty before the other starts emptying.
- To accomplish dispensing from different cartridges or combinations of cartridges, a regulator or switch system able to allow selection of a cartridge or combination of cartridges may be utilized. For example, a rotational or other positioning system my be utilized to orient one or more of the desired cartridges to be in fluid communication with the dispenser, with the remaining cartridges out of fluid communication. As an alternate example, a system which positions the dispenser to be in fluid communication with one or more cartridges as desired may also be utilized. As another alternate example, a system which positions both the dispenser and the desired cartridges may also be utilized. Another suitable system includes one which utilizes a conduit, such as a tube or hose, between each of the reservoirs and the dispenser, with conduits selectively opened or closed by switches to deliver material as desired.
- Whether dispensed from one cartridge or a combination of two or more cartridges, any suitable combination of sequential treatment regimen may be created from the list of dental treatment materials as provided below.
- Another non-limiting example of a sequential treatment regimen includes high strength whitening followed by whitening maintenance treatment.
- Even another non-limiting example of a sequential treatment regimen includes stanous fluoride followed by a stain removing treatment.
- Still another non-limiting example of a sequential treatment regimen includes whitening agent and sealer to prevent staining.
- Yet another non-limiting example of a sequential treatment regimen includes aggressive medication followed by a neutralizing agent.
- Even still another non-limiting example of a sequential treatment regimen includes tooth cleaner followed by breath freshener/treatment.
- Even yet another non-limiting example of a sequential treatment regimen includes tooth cleaner, tooth polisher, then sealant.
- For consumer ease of use, it is envisioned that some brushing systems may be predisposed to dispense in a certain order. For example, for the sequential example just provided above, the brushing system would be available to dispense automatically from cartridge A, then from cartridges B and C, then from cartridge A, and finally from cartridge D.
- With the advent of cheaper and smaller microprocessors, the brushing system could even contain a preprogrammed or programmable microprocessor to control the dispensing of material. The microprocessor would be connected to the mechanism which control cartridge selection and product dispensing. This control can include the selection of the desired cartridges or combinations of cartridges, the order of dispensing, as well as the amount dispensed from each cartridge.
- Of course, to enhance dental care this microprocessor system could be programmed to provide alarms or messages to a small display screen to remind the user to dispense certain materials at certain times. For example, for two dental treatments one to be dispensed from cartridge A every 4 hours, the other to be dispensed from cartridge B every six hours, the brushing system could be programmed to so dispense, with reminders/alarms to the user to use the brush at the appropriate times.
- It is even envisioned that a given pre-loaded multiple cartridge system may further include its own executable instructions on a medium (for example a small chip, disk, microprocessor, or Radio Frequency ID tag to activate proprietary program functions) that is loaded into the brushing system to dispense material from the cartridge system as desired.
-
Cartridge assembly 130 fits insidecartridge holder 120, with one or more of thecartridges 131 in liquid communication with stems 37. Of course, dispensingactuator 140 must be sufficiently accessible to all rotation ofdispenser actuator 140. - In the practice of the present invention, it is envisioned that
pre-loaded cartridges 131 may be available as single use disposable cartridges, multiple use disposable cartridges, or refillable cartridges, and that empty cartridges may be available for loading with suitable materials by the end user. - Referring now to FIG. 5, there is shown an exploded view of rigid
cartridge brushing system 500, includingtooth brush 110,cartridge assembly 130,holder 120,electric drive motor 250, and havingcartridges 131 that are rigid.End cap 258 is positioned on the end ofdrive housing 250 and provides for convenient access to the inside ofdrive housing 250. Attached to drivehousing 250,gear housing 53 is held in place by a number of retainingscrews 122 which pass throughinterlock ring 59 and screw intohousing 120. A number ofgears 137 are positioned on top ofgear housing 53 and held positioned by a number ofsprings 55 and screws 51.Dispensing actuator 140 fits around and engagesgears 137. Positioned withinholder 120 are one ormore cartridge tubes 131, havingend cap 135,piston 134 and ascrew 132.Key 39 andfitment 38 serve to aligncartridge tubes 131. Stems 37 are in liquid communication withcartridge tubes 131, and extend throughmanifold 33, and connect to and are in liquid communication withflexible delivery tubes 31 connected to and in liquid communication withconnector 118 andduckbills 117.Tooth brush 110 passes throughtransition 22 and connects to driveshaft 56.Toothbrush 110 consists ofduckbill 117,brush head 113, bristles 11,neck 115,body 116, andconnector 118. As used herein, a “duckbill” is generally described as a resiliant flow regulator or check valve that includes a pair of lips arranged in a converging relationship to define an open end and a normally closed end. At the normally closed end the lips are disposed adjacent to each other to define a normally closed slit and define inner and outer surfaces for the lips. As fluid passes through the lips increased pressure will cause a larger opening, increasing the flow rate. With no pressure acting on the lips, closure prevents any material from entering opposite the desired material flow direction. Driveshaft 56 is connected tocoupling 54, which is in turn connected to coupling 52 bydrive shaft 121. - FIG. 6 is an exploded view of flexible
sachet brushing system 600, includingtooth brush 110,cartridge assembly 130,housing 120, electricmotor drive motor 250, and havingsachet 129 that are flexible. Insideholder 120 are positioned one ormore sachets 129. The delivery mechanism includes stems 23 in liquid communication withsachets 129 andflexible tubes 31, o-rings 25,manifold 27,steel balls 29, springs 28.Anvil 45,pump actuator 42,button 43, andretainer disk 41 make up the remainder of the fluid delivery system. Included in the connection betweenhousing 120 andtooth brush 110 arecap 61,steel balls 62 and springs 63.Tooth brush 110 passes throughtransition 22 and connects to driveshaft 56 and includesduckbills 117, bristles 111,brush head 113,neck 115,body 116, andconnector 118. - In the practice of the present invention, dental treatment materials may be selected from the group consisting of anti-bacterial agents, bleaching agents, breath conditioning agents, buffers, carriers, cleaners, coatings, colorants or dyes (to impart color to the material), coloring or dying agents (for coloring or dying the tooth), conditioners, emulsifiers, foaming agents, fillers, flavors, flow agents, fluorides, gelling agents, inert agents, medicines, oxidizing agents, polish, preservatives, sealants, scrubbing agents, stain removers, surfactants, tartar control agents, thickening agents, viscosity agents, washes, whiteners, and the like. These dental treatment materials may be in emulsion, gel, granule, liquid, paste, powder, or slurry form.
- In some embodiments of the present invention, it is to be understood that certain dental treatment materials or combination of dental treatment materials perform better in concentrated form, without the addition of solvents, diluents, thickening agents, viscosity agents, buffers, carriers, emulsifiers, surfactants, and the like. Thus, for those embodiments, it is preferred that those dental treatment materials or combination of materials be provided without the presence of such solvents, diluents, thickening agents, viscosity agents, buffers, carriers, emulsifiers, surfactants, and the like since the treatment materials are delivered from within the bristles.
- Non-limiting examples of suitable fluoride treatments include stannous fluoride, sodium fluoride, and sodium monofluorophosphate. Current dental treatment materials contain solvents, dilutants, thickening agents, and the like to provide support for the treatment material while dispensed on top of toothbrush bristles. The preferred fluoride treatment is sodium fluoride.
- The concentration of the various dental treatment materials will be chosen according to health and treatment standards as are known in the dental treatment art.
- The dental treatment materials of the present invention will have a viscosity suitable for use in tooth treatment applications and methods.
- As used herein, the “viscosity” shall refer to “dynamic viscosity” and is defined as the ratio of the shearing stress to the rate of deformation.
- When measured at a shear rate of 1 seconds−1, the viscosity will have a range with the lower end of the range generally about 0.0025 poise, preferably about 0.1 poise, and more preferably about 75 poise, with the upper end of the range being selected independently of the lower end of the range and generally about 10,000 poise, preferably about 5,000 poise, and more preferably about 1,000 poise. Non-limiting examples of suitable viscosity ranges when measured at a shear rate of 1 seconds−1 includes, about 0.0025 poise to about 10,000 poise, about 0.1 poise to about 5,000 poise, about 75 poise to about 1000 poise, and about 0.1 poise to about 10,000 poise.
- When measured at a shear rate of 100 seconds−1, the viscosity will have a range with the lower end of the range generally about 0.0025 poise, preferably about 0.05 poise, and more preferably about 7.5 poise, with the upper end of the range being selected independently of the lower end of the range and generally about 1,000 poise, preferably about 100 poise, and more preferably about 75 poise. Non-limiting examples of suitable viscosity ranges when measured at a shear rate of 100 seconds31 1 includes, about 0.0025 poise to about 1,000 poise, about 0.05 poise to about 100 poise, about 7.5 poise to about 75 poise, and about 0.05 poise to about 1,000 poise.
- When measured at a shear rate of 10,000 seconds, the viscosity will have a range with the lower end of the range generally about 0.0025 poise, preferably about 0.05 poise, and more preferably about 5 poise, with the upper end of the range being selected independently of the lower end of the range and generally about 500 poise, preferably about 50 poise. Non-limiting examples of suitable viscosity ranges when measured at a shear rate of 10,000 seconds−1 includes, about 0.0025 poise to about 500 poise, about 0.05 poise to about 50 poise, about 5 poise to about 50 poise, and about 0.05 poise to about 500 poise.
- Continuing with FIG. 6
toothbrush 110 includesbody 116,neck 115, bristlehead 113,duckbills 117, bristles 111, and engagingconnector 118. While not shown,toothbrush 110 includes one or more passages extending from engagingconnector 118 toduckbills 117. In assembly,flexible delivery tubes cap 61 engage to provide liquid communication betweensachets 129 and bristles 111. - In operation of
embodiment 100,cartridge assembly 130 ofcartridges 131 with suitable dental treatment materials are positioned inholder 120, withtooth brush 110 affixed to driveshaft 56.Dispensing actuator 140 engagescartridge gear 137. Rotation of dispensingactuator 140 provides rotational energy to dispense dental treatment material throughbrush 110 andduckbills 117 then to bristles 111. - Referring now to FIG. 2, there is provided an electric motor powered brushing
apparatus 200,of the present invention, includingtooth brush 110, and dispensingsystem cartridge holder 120,electric drive motor 250.Cartridge assembly 130 resides inholder 120. Operation of brushingapparatus 200 is similar to that of brushingapparatus 100 except that anelectric motor drive 250 has replaced the manual method of brushing. - Referring now to FIGS. 3 and 4, there are shown brushing
systems system 300 includingdrive 250,holder 120, and dispensingactuator 140, and brushingsystem 400 includesholder 120, and dispensingactuator 140. Both of these brushingsystems cap 50 having a dispensingtip 55 in liquid communication withcartridges 131 residing inholder 120 for dispensing the dental treatment material directly onto the tooth brush bristles. For both of theseembodiments cartridge assembly 130 resides inholder 120. In operation, these embodiments are powered sufficiently to cause dental treatment materials to dispense from dispensingtip 55 for application to tooth brush bristles. - While embodiments of the figures are configured to provide simultaneous dispensing of materials from all of the cartridges, it should be understood that the brushing systems of the present invention may include regulators to allow for sequential dispensing of material from different cartridges or combinations of cartridges.
- The tooth brushing system of the present invention finds utility mainly for use in the care of human teeth, although utility may also be found in animal husbandry, pet care, and veterinary applications.
- Referring now to FIG. 8, there is shown two
chamber cartridge 300A, a concept which can be used to dispense 2 or more products from a 2 or more chambered cartridge. The multiple products can be dispense simultaneously or individually. As shown, withinhousing 301 are 2 chambers,upper fluid chamber 320, andlower fluid chamber 321, but one can easily see that more than 2 can be utilized. Each chamber has a separate piston,upper piston 305 andlower piston 306, which are threaded respectively throughupper drive screw 302 andlower drive screw 303.Upper piston 305 intop chamber 320 is threaded throughscrew 302 of a smaller diameter thanpiston 306 in the bottom chamber. Screw 302 fortop chamber piston 305 is positioned inside ofscrew 303 forbottom chamber piston 306. Eachchamber separate exit channels upper piston screw 302 andlower piston screw 303, with respectively,drive gear 308 and drivegear 307, causes the products contained in therespective chambers respective exit channels screws - Referring now to FIGS. 9 and 10, there respectively shown side view and screen cross section view of two
chamber cartridge 300B, which can be used to dispense 2 or more products from a 2 or more chambered cartridge. The multiple products can be dispense simultaneously or individually from upperfluid chamber 320 throughfluid discharge 311, and/or fromlower fluid chamber 321 throughfluid discharge 310. As shown,housing 301 has 2 chambers, but one can easily see that more than 2 can be utilized. In operation, rotation ofcentral screw 304 is accomplished by rotation of knob, gear, orother means 309 attached to screw 304 at the bottom ofhousing 301 as shown, or in some other location/position so as to drive rotation of the screw.Central drive screw 304 has twoflow channels Flow channel 311 is in fluid communication with thetop chamber 320 and theother channel 310 is in fluid communication withbottom chamber 321. Rotation ofscrew 304 will driveupper piston 305 andlower piston 306 upward, forcing the product through intofluid inlet channels channels Upper chamber valve 312 andlower chamber valve 313 can be used to shut off flow throughchannels interface 330. The piston in the chamber which is in fluid communication with the valve which is shut off is designed to slide down the threads of the screw when internal pressure in the chamber reaches a higher level than normal due too the flow passage being shut off. In this way, one can shut off one channel or the other to get only one product at a time if desired. Furthermore the hollow screw could be part of the brush head and stem, or a dispensing nozzle, and therefore to dispense product up through a brush head or dispensing head, a person could just rotate the cartridge body or housing while holding the brush head or dispensing head stationary, or visa versa. - While the dispensing system of the present invention has been illustrated mainly by reference to in dental care, it should be understood that the dispensing system finds utility in a wide variety of arts. The dispensing system my be used alone to dispense a wide variety of materials, or may be used in combination with a wide variety of tools or instruments. As a non-limiting example, the dispensing system may be utilized in nail, hair and/or skin care (for humans or animals) to dispense, either directly or through a brush or other applicator, conditioners, coloring, creams, cleanser, emollients, lotions, medicines, polish, softeners, and/or any other nail, hair or skin treatment material. As other non-limiting examples, the dispensing system may be utilized in jewelry making or cleaning, grout cleaning, auto detailing, painting, furniture painting/staining/refinishing, spot burnishing, spot laundry cleaning, and ceramics painting/finishing. As even another non-limiting example, the dispenser system of the present invention finds utility in hair coloring with a wide variety of manual, powered, sonic, or ultrasonic applicator heads.
- While the illustrative embodiments of the invention have been described with particularity, it will be understood that various other modifications will be apparent to and can be readily made by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is not intended that the scope of the claims appended hereto be limited to the examples and descriptions set forth herein but rather that the claims be construed as encompassing all the features of patentable novelty which reside in the present invention, including all features which would be treated as equivalents thereof by those skilled in the art to which this invention pertains.
- All patents and articles cited herein, are hereby incorporated by reference.
Claims (20)
1. A tooth brushing system comprising:
(a) a body;
(b) a first material reservoir for supplying a first material;
(c) a second material reservoir for supplying a second material; and
(d) an applicator supported by the body,
wherein the first and second material reservoirs are in liquid communication with applicator, and wherein the first and second reservoirs are supported by the body.
2. The system of claim 1 , further comprising:
(e) a regulator positionable in a first position to engage the applicator in liquid communication with the first reservoir, and in a second position to engage the applicator in liquid communication with the second reservoir.
3. The system of claim 1 , wherein at least a portion of at least one of the first or second reservoirs are removably contained within said body.
4. The system of claim 3 , wherein at least one of the first or second reservoirs comprises a positive displacement.
5. The system of claim 1 , further comprising:
(e) a first dental treatment material positioned in the first reservoir; and
(f) a second dental treatment material positioned in the second reservoir;
wherein the first dental treatment material is different from the second dental treatment material, and wherein the first and second dental treatment materials each comprise at least one selected from the group consisting of anti-bacterial agents, bleaching agents, breath conditioning agents, buffers, carriers, cleaners, coatings, tooth colorants or dyes, coloring or dying agents, conditioners, emulsifiers, foaming agents, fillers, flavors, flow agents, fluorides, gelling agents, inert agents, medicines, oxidizing agents, polish, preservatives, sealants, scrubbing agents, stain removers, tartar control agents, viscosity agents, washes, and whiteners.
6. The system of claim 5 , wherein said first material is provided without an additional thickening agent.
7. The system of claim 6 , wherein the viscosity of the first materials, when measured at a shear rate of about 1 seconds−1 is in the range of about 0.1 poise to about 5,000 poise.
8. The system of claim 6 , wherein said second material is provided without an additional thickening agent.
9. The system of claim 8 , wherein the viscosity of the first and second materials, when measured at a shear rate of about 100 seconds−1, is in the range of about 0.05 poise to about 100 poise.
10. The system of claim 5 , wherein the first material comprises fluoride, and the second material comprises at least one selected from gingivitis treatments, whitening agents, breath treatments, and combinations thereof.
11. The system of claim 1 , further comprising:
(e) a third material reservoir for supplying a third material, wherein the third reservoir is in liquid communication with applicator, and wherein the third reservoir is supported by the body; and
(f) a third material positioned in the third reservoir, wherein the third material comprises at least one selected from the group consisting of whitening agents, advanced cleaning agents, baking soda, peroxide, tartar control, and combinations thereof.
12. The system of claim 11 , further comprising:
(g) a fourth material reservoir for supplying a fourth material, wherein the third reservoir is in liquid communication with applicator, and wherein the third reservoir is supported by the body; and
(g) a fourth material positioned in the fourth reservoir, wherein the fourth material comprises at least one selected from the group consisting of whitening agents, advanced cleaning agents, baking soda, peroxide, tartar control, and combinations thereof.
13. A brushing system comprising:
(a) a body;
(b) a material reservoir supported by the body, wherein the material reservoir comprises treatment regimen of at least two materials, and wherein the materials are positioned to sequentially dispense from the reservoir; and
(c) an applicator supported by the body, and in liquid communication with the material reservoir.
14. The system of claim 13 , further comprising:
(d) N number of treatment regimens positioned in the material reservoir, wherein each regimen comprises a first material and a second material, wherein each regimen is positioned to allow dispensing of substantially all of the first material of the Nth regimen prior to application of the second material of the Nth regimen, and positioned to allow dispensing of substantially all of the second material of the (N−1)th regimen prior to application of the first material of the Nth regimen, and wherein N is an integer of at least 1.
15. The system of claim 14 wherein each regimen further comprises a third material, wherein each regimen is positioned to allow dispensing of substantially all of the first material of the (N−1)th regimen prior to application of the second and third materials of the Nth regimen, and to allow dispensing of substantially all of the second material of the (N−1)th regimen prior to application of the third material of the (N−1)th regimen, and positioned to allow dispensing of substantially all of the third material of the Nth regimen prior to application of the first material of the Nth regimen, and wherein N is an integer of at least 1.
16. The system of claim 14 , wherein N is 1.
17. The system of claim 14 , wherein the first material comprises a whitening agent, and the second material comprises a polisher.
18. A method of brushing teeth with a brushing system, wherein the brushing system comprises a body, first and second material reservoirs supported by the body, and an applicator supported by the body, wherein the applicator is in liquid communication with the first and second material reservoirs, and wherein the first material reservoir contains a first dental treatment material, and wherein the second material reservoir contains a second dental treatment material, the method comprising the steps of:
(a) dispensing first dental treatment material from the first reservoir to the applicator;
(b) contacting the first dental treatment material to teeth;
(c) dispensing second dental treatment material from the second reservoir to the applicator; and
(d) contacting the second dental treatment material to the teeth.
19. The method of claim 18 further comprising:
prior to step (a), inserting said first and second reservoirs into said body.
20. The method of claim 18 , wherein the brushing system further comprises a switch positionable in a first position to engage the applicator in liquid communication with the first reservoir, and in a second position to engage the applicator in liquid communication with the second reservoir, the method further comprising, prior to step (a) first engaging the applicator in liquid communication with the first reservoir, and prior to step (c) first engaging the applicator in liquid communication with the second reservoir.
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US10/424,648 US20030194678A1 (en) | 2000-11-22 | 2003-04-25 | Apparatus, method and product for treating teeth |
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