Fluid management for automated brushing system

The automated brushing system addresses fluid management limitations by integrating precise toothpaste and water delivery with efficient waste removal, improving oral hygiene and dental health through accurate dosing and streamlined cleaning.

WO2025243259A1PCT designated stage Publication Date: 2025-11-27WILLO 32 INC
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Patent Information

Application Number
PCT/IB2025/055359
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-23
Filing Date
2025-05-23
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

Existing toothbrushing technologies lack comprehensive fluid management capabilities, leading to improper toothpaste dosage, ineffective waste removal, and suboptimal cleaning performance, which can impact oral hygiene and overall health.

Method used

An automated brushing system with a handheld device and base station that includes pumps, valves, and a mouthpiece for precise toothpaste and water delivery, along with an evacuation system for waste removal, utilizing check valves and filters to ensure accurate dosing and efficient cleaning.

Benefits of technology

The system provides precise toothpaste and water dosing, effective waste evacuation, and a streamlined brushing process, enhancing oral hygiene and promoting better dental health outcomes.

✦ Generated by Eureka AI based on patent content.

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Abstract

A brushing system comprising a mouthpiece shaped to conform to a human dental arch, removably connected to the neck portion through a coupling device. A base station adapted to perform a fluid management for the oral hygiene device is provided. The base station includes a toothpaste pump configured to dispense a predetermined amount of toothpaste towards the mouthpiece of oral hygiene device through a first check valve positioned on an injection line, a fluid pump operable to selectively inject water via a three-way valve towards the mouthpiece of the oral hygiene device through a second check valve positioned on the injection line, and an evacuation pump adapted to remove waste fluids from the mouthpiece during brushing through an evacuation line. A dispensing mechanism having means for selecting a predetermined amount of toothpaste, water and / or air to be pumped through the mouthpiece.
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Description

[0001] FLUID MANAGEMENT FOR AUTOMATED BRUSHING SYSTEM

[0002] FIELD OF THE INVENTION

[0003] The present invention relates generally to oral hygiene devices, and more particularly, to an automated brushing system for controlling the injection and evacuation of liquids, such as toothpaste and water, during a tooth brushing process.

[0004] BACKGROUND OF THE INVENTION

[0005] Proper oral hygiene is essential for maintaining good dental health and preventing various oral diseases. The consequences of poor oral hygiene extend beyond the mouth. Over the years, it has been established that there is a link between oral health and various systemic diseases, including heart disease, stroke, diabetes, and even respiratory problems. Therefore, it is essential for any human to have a clean and fresh mouth as it plays a vital role in preventing a multitude of oral diseases as well as contributes to overall well-being.

[0006] Conventionally, oral health has been achieved primarily through tooth brushing. However, traditional toothbrushing methods, while effective to a degree, have limitations. Over the years, traditional toothbrushing methods have evolved from manual application of toothpaste and rinsing with water to more refined designs available today. However, manual brushing can be limited by factors such as pressure application and technique, leading to improper dosage of toothpaste and ineffective removal of waste fluids from the mouth.Additionally, rinsing immediately after brushing can reduce the effectiveness of the toothpaste's active ingredients.

[0007] To address these limitations, automated toothbrush systems have emerged, integrating advanced technologies to enhance the brushing experience. For example, the I ntelliClean® system developed by Sonicare® and Crest® combines high-speed bristle motion with specially formulated toothpaste for efficient plaque removal and user convenience. Fresh Health Inc. introduced the Proclaim®, an automated oral health system featuring customized jets that pulse water to clean between teeth and below the gum line in just seconds, ensuring thorough cleaning with each use. Water flossers like the Waterpik® water flosser utilize a combination of water pressure and pulsations to remove plaque and food debris from hard-to- reach areas, contributing to overall oral hygiene.

[0008] Innovations in toothbrush technology continue to emerge, with experimental systems exploring novel approaches to brushing. One such concept involves a motor / cam system that brushes teeth laterally, optimizing efficiency by covering a quarter or half of the mouth with each stroke. However, such cam-based system may lack precision, gum sensitivity control, and interdental cleaning.

[0009] Accordingly, it may be noted that various methods and tools have been developed to aid in tooth cleaning, ranging from primitive chew-sticks to modem automated toothbrush systems. Despite the advancements, challenges persist, particularly in fluid management during the brushing process. Moreover, existing solutions often address specificaspects of fluid management, such as toothpaste dispensing or water flossing, without offering a comprehensive approach.

[0010] Thus, there exists a need for developing a brushing system that can facilitate integration of fluid management capabilities into the tooth brushing process while ensuring accurate dosage of toothpaste, effective waste removal, and optimized cleaning performance, thereby enhancing overall oral hygiene.

[0011] SUMMARY OF THE INVENTION

[0012] In one aspect of the present disclosure, a brushing system for enhancing oral hygiene, is provided. The brushing system includes a handheld oral hygiene device consisting of a body portion extending towards a neck portion. The handheld oral hygiene device further includes a mouthpiece shaped to conform to a human dental arch, removably connected to the neck portion via a coupling device. The system further includes a base station configured for performing fluid management within the brushing system. The base station includes a toothpaste pump equipped to dispense a predetermined amount of toothpaste from a source of toothpaste, toward the mouthpiece through a first check valve positioned on an injection line. The base station further includes a fluid pump adapted to selectively inject a fluid and I or air via a three-way valve, towards the mouthpiece through a second check valve positioned on the injection line. Furthermore, the base station includes an evacuation pump configured to remove waste and I or excess fluids from the mouthpiece during brushing through an evacuation line. The brushing system further includes a dispensing mechanism for selecting a predetermined amount of toothpaste, water, and / or air to be pumped toward the mouthpiece.

[0013] Generally, the coupling device is in the form of a connector adapted to a snug fit between the mouthpiece and the neck portion of the oral hygiene device.

[0014] Particularly, the coupling device includes a mesh filter for trapping debris and a duckbill valve for preventing backflow from the mouthpiece towards the injection line.

[0015] Potentially, the mouthpiece includes an inner curved surface configured to contact tooth surfaces when inserted into a user's mouth.

[0016] Further potentially, the mouthpiece includes an outer curved surface opposite the inner curved surface and a plurality of bristles extending from the inner curved surface.

[0017] Particularly, the oral hygiene device includes a cleaning accessory configured to connect the injection line to the evacuation line for the purpose of flushing excess and I or waste liquid from the mouthpiece.

[0018] Preferably, the cleaning accessory is in the form of a cleaning plug removably attachable to the handheld portion in place of the mouthpiece.

[0019] Alternatively, the cleaning plug is in the form of a cleaning cap that may be removably attachable to the handheld portion when the mouthpiece is removed therefrom.

[0020] Yet alternatively, the cleaning accessory may be in form of any suitable design, that may be positioned onto the oral hygiene device, with the mouthpiece remaining in a connected position.

[0021] Possibly, the dispensing means includes a user interface adapted to initiate one or more functions selected from but not limited to performing a priming cycle, injection / evacuation, or performing a cleaning / rinsing cycle, and for adjusting dosage levels of toothpaste, water, or air through the base station.

[0022] In another aspect of the present disclosure, a method for fluid management during injection of one or more of toothpaste, fluids and / or air towards the oral hygiene device, is provided. The method includes performing a priming cycle for facilitating filling of toothpaste and / or fluid within the injection line, and removal of excess fluid from the evacuation line. The method further includes performing an injection cycle for injecting a precise amount of tooth paste and water and I air through the injection line. Thereafter, the method furthermore includes performing a cleaning and rinsing cycle for ensuring that the toothpaste line, water / airline, and other components are properly cleaned and disinfected, preventing the buildup of residues or contaminants.

[0023] The details of one or more implementations are set forth in the accompanying drawings and the description below. Other aspects, features and advantages of the subject matter disclosed herein will be apparent from the description, the drawings, and the claims.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1A is a schematic diagram illustrating the components of the automated brushing system, according to an embodiment of the invention.

[0026] Fig. 1B is a schematic diagram illustrating the components of the automated brushing system, according to an additional embodiment of the invention;

[0027] Fig. 1C is a schematic diagram illustrating replacement of mouthpiece with the cleaning accessory, according to an embodiment of the invention;

[0028] Fig. 1 D is an exemplary cleaning accessory, according to an embodiment of the invention; according to an embodiment of the invention;

[0029] Fig. 2 is a flowchart illustrating the operation cycle of the brushing system, according to an embodiment of the invention;

[0030] Fig. 3 is a flowchart illustrating the priming phase of the fluid management system, according to an embodiment of the invention;

[0031] Fig. 4 is a flowchart illustrating the injection and evacuation phase of the fluid management system, according to an embodiment of the invention;

[0032] Fig. 5 is a flowchart illustrating the cleaning and rinsing phase of the fluid management system, according to an embodiment of the invention; and

[0033] Fig. 6 is an exemplary handheld oral hygiene device, according to an embodiment of the invention.

[0034] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] As required, a schematic, exemplary-only embodiment of the present application is disclosed herein; however, it is to be understood that the disclosed embodiment is merely exemplary of the present disclosure, which may be embodied in various and I or alternative forms. Specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.

[0036] Aspects, advantages and / or other features of the exemplary embodiment of the disclosure will become apparent in view of the following detailed description, which discloses various non-limiting embodiments of the invention. In describing exemplary embodiments, specific terminology is employed for the sake of clarity. However, the embodiments are not intended to be limited to this specific terminology. It is to be understood that each specific portion includes all technical equivalents that operate in a similar manner to accomplish a similar purpose.

[0037] Exemplary embodiments may be adapted for many different purposes and are not intended to be limited to the specific exemplary purposes set forth herein. Those skilled in the art would be able to adapt the exemplary-only embodiment of the present disclosure, depending for example, on the intended use of adapted embodiment. Moreover, examples and limitations related therewith brought herein below are intended to be illustrative and not exclusive. Other limitations of the related art will become apparent to those of skill in the art upon a reading of the following specification and a study of the related figures.

[0038] The present application discloses an automated brushing system for facilitating an accurate and controlled delivery of toothpaste and water and / or air into the mouth of a user, for achieving an efficient cleaning of a user’s mouth. Further, the brushing system of the current disclosure is adapted to effectively removing waste fluids or debris from the mouth, while cleaning the mouth of the user. In a preferred embodiment, the apparatus includes a handheld oral hygiene device, connected to one or more source of tooth paste, water, or a waste tank, through a base station adapted to control the flow of toothpaste and / water / air towards the oral hygiene device. It is to be understood that unless otherwise indicated this invention need not be limited to applications in humans. As one of ordinary skill in the art would appreciate, variations of the invention may be applied to other mammals as well. Moreover, it should be understood that embodiments of the present invention may be applied in combination with various fluid delivery devices and I or reservoirs for oral hygiene management. It must also be noted that, as used in this specification and the appended claims, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise. Thus, forexample, the term “an opening” is intended to mean a single opening or a combination of openings, “a fluid” is intended to mean one or more fluids, or a mixture thereof.

[0039] The present disclosure is designed to simplify and enhance the tooth brushing experience. The system enables accurate dosing of toothpaste and water, efficient delivery of fluids into the user's mouth, and effective evacuation of waste liquids during the brushing process.

[0040] The brushing system of the present invention offers several advantages over traditional tooth brushing methods and existing solutions:Precise Dosage Control: By incorporating pumps and valves, the system enables accurate and controlled dosing of toothpaste and water, mitigating the risk of improper application or wastage.Effective Waste Removal: The evacuation pump and associated components ensure efficient removal of waste fluids from the user's mouth during the brushing process, promoting a clean and comfortable experience.Streamlined Brushing Process: The integrated fluid management capabilities simplify the tooth brushing routine, eliminating the need for manual rinsing and enhancing overall convenience.Hygiene and Longevity: The use of food-grade and antibacterial materials, along with the cleaning and rinsing phase, helps maintain the system's cleanliness and prolong its lifespan.User-Friendly Design: The incorporation of features such as user interfaces, adjustable dosing, and sensor integration improves the overall user experience and allows for customization based on individual preferences.Improved Oral Health: By encouraging proper dosage of toothpaste and effective waste removal, the system contributes to better oral hygiene practices, potentially leading to improved dental health outcomes.

[0041] Throughout the specifications of the present disclosure, the term "comprising" means including but not necessarily to the exclusion of other elements or steps. In other words, the term comprising indicates an open list. Furthermore, all directional references (such as, but not limited to, upper, lower, inner, outer, upward, downward, inwards, outwards, right, left, rightward, leftward, inside, outside, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise, lineal, axial and / or radial, or any other directional and / or similar references) are only used for identification purposes to aid the reader's understanding of illustrative embodiments of the present disclosure, and may not create any limitations, particularly as to the position, orientation, or use unless specifically set forth in the claims. Moreover, all directional references are approximate and should not be interpreted as exact, but rather as describing a general indicator as to an approximate attitude.

[0042] Similarly, joinder references (such as, but not limited to, attached, coupled, connected, accommodated, and the like and their derivatives) are to be construed broadly and may include intermediate members between a connection of segments and relative movement between segments. As such, joinder references may not necessarily infer that two segments are directly connected and in fixed relation to each other.

[0043] In some instances, components are described with reference to "ends" having a particular characteristic and / or being connected with another part. However, those skilled in the art will recognize that the present disclosure is not limited to components which terminate immediately beyond their points of connection with other parts. Thus, the term "end" should be interpreted broadly, in a manner that includes areas adjacent, rearward, forward of, or otherwise near the terminus of a particular segment, link, component, part, member or the like. Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “third”, “fourth”, or any other ordinary and / or numerical terms, should also be taken only as identifiers, to assist the reader’s understanding of the various embodiments, variations and / or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any embodiment, variation and / or modification relative to, or over, another embodiment, variation and / or modification.

[0044] Referring to Figs. 1A & 1 B, a tooth brushing system 1000 includes a handheld oral hygiene device 1100, and a base station assembly 1200, adapted to manage a flow of one or more fluids and I or tooth paste, towards the oral hygiene device 1100. Further, the base station 1200 is adapted to manage a flow of one or more waste I excess fluids back from the handheld hygiene device 1100.

[0045] The oral hygiene device 1100 comprises a body portion 1120, extending between a base portion 1110 towards a neck portion 1130. The oral hygiene device 1100 further includes a mouthpiece portion 1140, removably attached to the neck portion 1130, through a coupling device 1150. The body portion 1120 comprises a longitudinal bore 1160 extending axially away from the neck portion 1130 towards the base portion 1110. The longitudinal bore 1160 of the body portion 1120 is adapted to receive a pair of fluid lines 1170 extending therethrough, generally coaxially along an axis Ls of the body portion 1120 and fluidly disposed towards the mouthpiece 1140. The pair of fluid lines 1170 include a first injection line 1171 adapted to inject a flow of toothpaste and I or fluid therethrough towards the mouthpiece 1140. The pair of fluid lines 1170 further include an evacuation line 1172, adapted to receive waste I excess fluid therethrough from mouth piece towards the base station.

[0046] Further, the mouthpiece 1140 is provided with two or more cavities 1142, each adapted to be coaxially aligned with openings 1171 a, 1172a of the pair of fluid lines 1170 extending therethrough the body portion 1120.

[0047] The coupling device 1150, adapted to connect the body portion 1120 with the mouth piece 1140, is in the form of a hollow connector, adapted to snugly receive themouthpiece 1140 thereupon. Further, the coupling device 1150 is adapted to be connected to the neck portion 1130 through a connection mechanism, suitably known in the art. In a suggested embodiment, the connection mechanism is a thread connection mechanism. In such an embodiment, the, the neck portion 1130 may be threaded at a proximal end Ep. Further, the coupling device 1150 may, in such examples, include a complementary threaded bore [not shown] to facilitate connection with the neck portion 1130. In some other examples, the bore of connection end may be shaped to fittingly receive the neck portion 1130. Alternatively, any known mechanism may be used to detachably connect the neck portion 1130 to the coupling device 1150 such that, when connected, the cavities 1142 coaxially align with the openings 1171 a, 1172a of the fluid lines 1170. The coupling device 1150 includes a mesh filter 1152 and a duckbill valve 1154.

[0048] The duckbill valve 1154 is adapted to be positioned below the mouthpiece 1140 and is configured to prevent a backflow towards the injection line 1171 from the mouthpiece 1140. The duckbill valve 1154 is generally a one-way valve, allowing a flow of toothpaste and I or fluid from the injection line 1171 towards the mouthpiece 1140.

[0049] The mesh filter 1152 is a protective component adapted to be positioned below the mouthpiece 1140, and is adapted to trap debris, food particles, or any solid matter that may be present in the waste fluids evacuated from the user's mouth. Further, by filtering out these solid particles, the mesh filter 1152 prevents possibility of formation of clogs or any unwanted damage to the evacuation line 1172 ensuring smooth and uninterrupted fluid evacuation during the brushing process.

[0050] The handheld oral hygiene device 1100, in some embodiments, as illustrated in Fig. 1B, includes a removable cleaning accessory 1180 adapted to be connected to the neck portion 1130, when mouthpiece 1140 is not connected thereto. Particularly, the mouthpiece 1140 is disconnected from the neck portion 1130 of the oral hygiene device 1100, and replaced with the cleaning accessory 1180, as illustrated in Fig. 1 C. In a preferred embodiment, as illustrated in Fig. 1 D the cleaning accessory 1180 may be in the form of a cleaning plug 1180, having two openings 1181 , 1182 each adapted to receive one of the fluid lines 1170 and thereby, connecting the injection line 1171 with the evacuation line 1172, thereby allowing for the flushing of excess liquids or cleaning solutions through the hygiene device 1100, without spilling or leaking thereat.

[0051] The base station 1200, is a component of automated brushing system 1000, which is adapted to facilitate a controlled delivery of toothpaste and fluid into the mouth as well as an evacuation of waste fluids from the mouth, during a tooth brushing process.

[0052] As illustrated, the base station 1200 includes a toothpaste pump 1210 configured to dispense a predetermined amount of toothpaste from a source of toothpaste 1250 therethrough, a fluid / air pump 1220 configured to selectively deliver a fluid or air from a source of fluid 1260, and an evacuation pump 1230 configured to remove waste liquids from a user'smouth through a flexible evacuation hose that is placed in the user’s sink. Alternatively, the waste liquids could be removed to a waste tank 1270.

[0053] The toothpaste pump 1210 is equipped to dispense a predetermined amount of toothpaste from a source of toothpaste 1250, through a toothpaste line 1212. The toothpaste line 1212, is connected to the injection line 1171 , through a first check valve 1215 facilitating a prevention of backflow from the toothpaste pump 1210. In a preferred embodiment, the toothpaste pump 1210 may be provided with one or more additional components [ not shown] that may facilitate a precise dosing of toothpaste and / or mitigating the risk of improper application by users. The toothpaste pump 1210 may be a peristaltic pump, diaphragm pump, or any suitable pump capable of delivering controlled volumes of viscous fluids like toothpaste. The source of toothpaste 1250 may be any suitable source such as for example, a toothpaste reservoir or a cartridge 1250 that contains the toothpaste or any other desired viscous fluid to be delivered to the mouth of the user.

[0054] The fluid I air pump 1220 is adapted to selectively inject a fluid [water] and I or air from a source of fluid(water) 1260 through a fluid delivery line 1222. The fluid I air pump 1220 includes a three-way valve 1224 for facilitating a selective control of water or air flow. Particularly, depending on the phase of the brushing cycle, the three-way valve 1224 may be actuated to direct either water or air from the water / air pump 1220 into the fluid delivery line 1222. The fluid delivery line 1222, is connected to the fluid injection line 1171 , through a second check valve 1225 facilitating a prevention of backflow from the fluid I air pump 1220.

[0055] The evacuation pump 1230 is configured to remove excess liquid and waste from the user's mouth through an evacuation line 1172, during the brushing process, thereby ensuring a clean and comfortable brushing experience while minimizing mess and discomfort for the user. The evacuation pump 1230 may be a peristaltic pump, diaphragm pump, or any suitable pump capable of creating a vacuum or negative pressure to draw out the waste fluids. The evacuation pump 1230 is connected to the evacuation line 1172 that terminates at the mouthpiece 1140, allowing for efficient removal of the fluids from the user's mouth.

[0056] The brushing system 1000 further includes a dispensing mechanism (not shown) for selecting a predetermined amount of toothpaste, water, and / or air to be pumped toward the mouthpiece 1140. The dispensing mechanism (not shown) may include one or more components selected from but not limited to sensors for enhance monitoring and control capabilities; User Control Interface for providing a seamless and user-friendly experience, adjustable dosing capabilities, and the like.

[0057] In an embodiment, the brushing system further includes a hose pipe 1190 adapted to connect the base station 1200 with the oral hygiene device 1100. Particularly, such a hose pipe 1190 is adapted to protect the fluid lines 1170 connected with the injection lines 1215 and 1225.

[0058] In a preferred embodiment as illustrated in Fig. 6, the handheld oral hygiene device 1100 is provided in the form of a slender shaped device. However, in other embodiments, the handheld oral hygiene device 1100 may be provided in any suitable shape that is ergonomic and easy to hold.

[0059] The mouth piece 1140, is generally a mouth cleaning device that is designed to fit comfortably in the mouth and is adapted to facilitate the delivery of toothpaste, water, and air during the brushing process. The mouthpiece 1140 may further be equipped with bristles or cleaning elements [not shown] to effectively clean the teeth and gums of the user. In a preferred embodiment, the mouthpiece 1140 is shaped to conform to a human dental arch. In such an embodiment, the mouthpiece 1140 includes an inner curved surface configured to contact tooth surfaces when inserted into a user's mouth. Further, in such embodiments, the mouthpiece 1140 includes an outer curved surface opposite the inner curved surface and a plurality of bristles extending from the inner curved surface.

[0060] In some embodiments, oral hygiene device 1100, including the body portion 1120, the coupling device 1150 and the mouthpiece 1140 may be formed of a any suitable bio compatible polymer making the device a reusable unit, and making it applicable to cleaning and sterilization. Further, these materials may have been treated or coated with antimicrobial agents or materials, that inhibits the growth of bacteria, fungi, and other microorganisms, preventing contamination and maintaining the cleanliness of the device, over an extended period of use. In a preferred embodiment, the material may be selected from one or more of but not limited to biocompatible material selected from one or more of a plastic, polyethylene, homopolymers and copolymers of vinyl acetate such as ethylene vinyl acetate copolymer, polyvinylchlorides, homopolymers and copolymers of acrylates such as polymethylmethacrylate, polyethylmethacrylate, polymethacrylate, ethylene glycol dimethacrylate, ethylene dimethacrylate and hydroxymethyl methacrylate, polyurethanes, polyvinylpyrrolidone, 2- pyrrolidone, polyacrylonitrile butadiene, polycarbonates, polyamides, fluoropolymers such as polytetrafluoroethylene and polyvinyl fluoride, polystyrenes, homopolymers and copolymers of styrene acrylonitrile, cellulose acetate, homopolymers and copolymers of acrylonitrile butadiene styrene, polymethylpentene, polysulfones, polyesters, polyimides, polyisobutylene, polymethylstyrene and other suitable material known to those skilled in the art.

[0061] Fig. 2, illustrates a flow diagram illustrating a method 2000 for fluid management during injection of one or more of toothpaste, using the brushing system 1000 of the current disclosure. The method 2000 starts at 2100 where a priming cycle for facilitates filling of toothpaste / fluid in the injection line 1171 and removal of excess fluid from the evacuation line 1172 is performed. It should be understood that the priming cycle 2100 does not need to be performed before each injection cycle. Rather, the priming cycle 2100 is only necessary when installing the brushing system 1000 for the first time, changing the liquid toothpaste container1250, or after a prolonged period of inactivity. If a priming cycle 2100 is unnecessary, then the method 2000 starts at 2200, the injection and evaluation cycle.

[0062] The priming cycle as illustrated in Fig. 3, in accordance to a method 3000, starts at step 3100, where all the pumps including the toothpaste pump 1210, the water / air pump 1220, and evacuation pump 1230 are turned off and the three-way valve 1224 is turned in its passive position thereby allowing air flow through the fluid delivery line 1222. The method then proceeds to step 3200 which involves priming the toothpaste line 1212. Particularly, at this step, the toothpaste pump 1210 is activated and run for a predetermined duration, dispensing a specific volume of toothpaste into the toothpaste line 1212. Simultaneously, the first check valve 1215 opens in response to pressure created by the toothpaste pump 1210 to permit a flow of toothpaste, while the second check valve 1225 remains closed to prevent any backflow into the fluid injection line 1171. Concurrently, the evacuation pump 1230 is started and thereby enabling a free flow of toothpaste through the circuits and into the evacuation line 1172. The method 3000 then proceeds to step 3300, at which the fluid line 1170 is primed. Particularly, at this step, the three-way valve 1224 is actuated to allow water flow from the water / air pump 1220 for a predetermined time, filling the water / air line 1222 with water from the water tank 1260. During this process, the second check valve 1225 is kept open 1232 to allow water passage, while the first check valve 1215 is kept closed to prevent backflow into the toothpaste line 1212. The evacuation pump 1230 continues to operate, facilitating a free flow of water through the circuits and into the evacuation line 1172. Thereafter, the method 3000 proceeds to step 3400, which involves flushing excess liquids from the system 1000. At this step, the toothpaste pump 1210 is stopped, and the three-way valve 1224 is switched to allow air flow from the water / air pump 1220 for a predetermined time, thereby pushing any excess fluids present in the fluid lines 1170 with air. At this step, the second check valve 1225 is kept open to allow air passage, while the first check valve 1215 is kept closed to protect the toothpaste line 1212. The evacuation pump 1230 continues to operate, enabling the free flow of air and any remaining fluids through the circuits and into the evacuation line 1172. At step 3500, the priming cycle ends, and the system enters a standby phase where all pumps, including the evacuation pump 1230, are stopped, and the three-way valve 1224 is returned to its passive position, allowing air to flow through the fluid line 1170. At this point, the toothpaste line 1212 is fully primed from the source of the toothpaste 1250 to the first check valve 1215, and the water / air-line is primed with water from the water tank 1260 to the three-way valve 1224.

[0063] Looping back to method 2000, the method after step 2100, proceeds to step 2200 where an injection and evacuation cycle is performed for facilitating a controlled delivery of toothpaste, water, and air into the user's mouth, as well as the effective evacuation of waste fluids. This cycle serves as a primary brushing cycle of the oral hygiene device 1100. The detailed steps of the injection and evacuation cycle are described with reference to the method 4000 in the flowchart in Fig. 4.

[0064] The method 4000, starts at 4100 where the system is at Standby Phase after the priming cycle. At this step, the Fluid line 1170 is primed from the water tank 1260 to the three- way valve 1224, and the toothpaste line 1212 is primed from the toothpaste cartridge 1250 to the intersection of the two check valves 1215 and 1225. Further at this step, the three-way valve 1224 is kept in its passive position, blocking water from flowing. Concurrently, the mouthpiece 1140 is attached to the neck portion 1130. Thereafter, the method 4000 proceeds to step 4200, where the toothpaste pump 1210 is started and kept running for a predetermined amount of time to inject a specific volume of toothpaste (e.g., 1 ml). Further, the first check valve 1215 is opened to allow toothpaste flow through the injection line 1171 , while the second check valve 1225 is kept closed to prevent backflow into the water / air line 1222. The injected volume of toothpaste is insufficient to reach the mouthpiece 1140 at this stage and remains in the injection line 1171.

[0065] At step 4300, the three-way valve 1224 is utilized to allow water flow from the fluid pump 1222 for a predetermined amount of time to inject a specific volume of water (e.g., 3 ml). Further, the second check valve 1225 is opened to allow water flow, while the first check valve 1215 is kept closed to prevent backflow into the toothpaste line 1212. The injected volumes of toothpaste and water are still insufficient to reach the mouthpiece 1140 and remains in the injection line 1171.

[0066] At step 4400, the three-way valve 1224 is utilized to allowing air flow from the fluid pump 1222 for a predetermined amount of time, pushing the air through the fluid line 1170. Further, the second check valve 1225 is opened to allow water flow, while the first check valve 1215 is kept closed to prevent backflow into the toothpaste line 1212. The air injection pushes the previously injected toothpaste and water into the mouthpiece 1140 and into the user's mouth. Further, the brushing movement is enabled at this stage to facilitate cleaning of user’s mouth.

[0067] Thereafter, at step 4500, the three-way valve 1224 is utilized to blocking water from flowing. Further, the evacuation pump 1230 is started a few seconds after the brushing movement begins (e.g., 5 seconds), thereby evacuating all waste fluids present in the mouthpiece 1140 and the user's mouth during the brushing process. The evacuation pump 1230 is stops a few seconds after the brushing movement ends (e.g., 3 seconds) to ensure a complete evacuation of waste fluids from the mouthpiece 1140.

[0068] Looping back to method 2000, the method after step 2200, proceeds to step 2300 where a cleaning and rinsing is performed for facilitating a proper cleaning and disinfection of the toothpaste line 1212, fluid lines 1170, and other components. The detailed steps of the cleaning and rinsing cycle are described with reference to the flowchart 5000 in Fig. 5.

[0069] The method 5000, starts at 5100 where, a cleaning cycle is started where the mouthpiece 1140 and coupling device 1150 are removed with the cleaning plug 1180, therebycreating a closed loop for the cleaning solution to circulate. Further, the water tank 1260 and the fluid tank are filled with a cleaning solution such as for example, hydrogen peroxide.

[0070] Thereafter, at step 5200, the toothpaste line 1212 is cleaned by first activating the toothpaste pump 1210, filling the toothpaste line 1212 with the cleaning solution. Further, the first check valve 1215 is kept open to allow the cleaning solution to flow freely, while the second check valve 1225 is kept closed to prevent any backflow into the fluid line 1170. Simultaneously, the evacuation pump 1230 is initiated, enabling the continuous flow of the cleaning solution throughout the brushing system 1000 and into the evacuation line 1172.

[0071] Once the toothpaste line 1212 is filled with cleaning solution, the method proceeds to step 5300, where the toothpaste pump 1210 is deactivated, and the three-way valve 1224 is utilized to allow flow of the cleaning solution from the fluid pump 1222. At this stage, the second check valve 1225 is kept open to allow for the solution flow, while the first check valve 1215 is kept closed, preventing backflow into the toothpaste line 1212. The evacuation pump 1230 continues to operate, ensuring the uninterrupted flow of the cleaning solution throughout the brushing system 1000 and into the evacuation line 1172.

[0072] At step 5400, all the pumps 1210, 1220, 1230 are deactivated and the three-way valve 1224 remains in the water position for a predetermined period of time, allowing the cleaning solution (e.g., hydrogen peroxide) sufficient time to disinfect and clean the fluid lines 1170. Thereafter, the method 5000 proceeds to step 5500, where the user replaces the contents of both the water tank 1260 and the dedicated cleaning bottle, previously filled with cleaning solution, with fresh water.

[0073] Step 5600 includes first activating the toothpaste pump 1210, filling the toothpaste line 1212 with the toothpaste. . Further, the first check valve 1215 is kept open to allow toothpaste to flow freely, while the second check valve 1225 is kept closed to prevent any backflow into the fluid line 1170. Simultaneously, the evacuation pump 1230 is initiated, enabling the continuous flow of the toothpaste throughout the brushing system 1000 and into the evacuation line 1172.

[0074] At step 5700, the toothpaste pump 1210 is deactivated, and the three-way valve 1224 is utilized to allow flow of the water from the fluid pump 1222. At this stage, the second check valve 1225 is kept open to allow for the water flow, while the first check valve 1215 is kept closed, preventing backflow into the toothpaste line 1212. The evacuation pump 1230 continues to operate, ensuring the uninterrupted flow of the water throughout the brushing system 1000 and into the evacuation line 1172.

[0075] Thereafter, at step 5800, the method 5000 includes removing any excess water by first moving the three-way valve 1224 to its initial position, allowing air flow from the fluid pump 1222, thereby evacuating any remaining water within the fluid lines 1170. The second check valve 1225 is kept open to allow air passage, while the first check valve 1215 is kept closed to prevent backflow into the toothpaste line 1212. The evacuation pump 1230 continuesto operate, enabling the continuous flow of air and any remaining water through the brushing system 1000 and into the evacuation line 1172. In one embodiment, the injection and evacuation phase can be repeated multiple times during a single brushing session, providing the user with fresh batches of toothpaste and water for thorough cleaning.

[0076] At step 5900, the cleaning plug 1180 is removed and the mouthpiece 1140 is reconnected using the coupling device 1150. In one embodiment, the cleaning and rinsing phase can be performed at regular intervals (e.g., weekly or monthly) to maintain optimal hygiene and prevent buildup of residues or contaminants within the fluid management system.

[0077] The method 2000 ends at step 2400. Accordingly, a simultaneous management of toothpaste flow while assuring an accurate dosing and maintaining high level of oral hygiene using a streamlined brushing process, is made possible with the brushing system of the current disclosure.

[0078] Referring to Figs. 2-5, methodology in accordance with a preferred embodiment of the claimed subject matter is illustrated. While, for purposes of simplicity of explanation, the methodology is shown and described as a series of acts, it is to be understood and appreciated that the claimed subject matter is not limited by the order of acts, as some acts may occur in different orders and / or concurrently with other acts from that shown and described herein. For example, those skilled in the art will understand and appreciate that a methodology could alternatively be represented as a series of interrelated states or events, such as in a state diagram. Moreover, not all illustrated acts may be required to implement a methodology in accordance with the claimed subject matter. Additionally, it should be further appreciated that the methodologies disclosed hereinafter and throughout this specification are capable of being stored on an article of manufacture to facilitate transporting and transferring such methodologies to computers. The term article of manufacture, as used herein, is intended to encompass a computer program accessible from any computer-readable device, carrier, or media.

[0079] As will be readily apparent to those skilled in the art, the present invention may easily be produced in other specific forms without departing from its essential characteristics. The present embodiments is, therefore, to be considered as merely illustrative and not restrictive, the scope of the invention being indicated by the claims rather than the foregoing description, and all changes which come within therefore intended to be embraced therein. Many variations, modifications, additions, and improvements are possible. More generally, embodiments in accordance with the present disclosure have been described in the context of preferred embodiments. Functionalities may be separated or combined in procedures differently in various embodiments of the disclosure or described with different terminology. These and other variations, modifications, additions, and improvements may fall within the scope of the disclosure as defined in the appended claims.

Claims

Claims:1 . A brushing system comprising: a handheld oral hygiene device comprising: a body portion extending towards a neck portion; a mouthpiece shaped conform to a human dental arch, removably connected to the neck portion through a coupling device a base station adapted to perform a fluid management for the oral hygiene device, the base station comprising: a toothpaste pump configured to dispense a predetermined amount of toothpaste towards the mouthpiece of oral hygiene device through a first check valve positioned on an injection line; a fluid pump operable to selectively inject water via a three-way valve towards the mouthpiece of the oral hygiene device through a second check valve positioned on the injection line; an evacuation pump adapted to remove waste fluids from the mouthpiece during brushing through an evacuation line. a dispensing mechanism comprising means for selecting a predetermined amount of at least one selected from the group of toothpaste, water and air to be pumped through the base station towards the mouthpiece.

2. The brushing system of claim 1 , wherein the mouthpiece comprising an inner curved surface configured to contact tooth surfaces when inserted into a user's mouth.

3. The brushing system of claim 2, wherein the mouthpiece further comprises an outer curved surface opposite the inner curved surface and a plurality of bristles extending from the inner curved surface.

4. The brushing system of claim 1 , wherein the coupling device comprising a mesh filter for trapping debris and a duckbill valve for preventing backflow from the mouthpiece towards the injection line.

5. The brushing system of claim 1 , further comprising a cleaning accessory configured to connect the injection line to the evacuation line for the purpose of flushing excess and I or waste liquid from the mouthpiece.

6. The brushing system of claim 5, wherein the cleaning accessory comprises a cleaning plug removably attachable to the handheld portion in place of the mouthpiece.

7. The brushing system of claim 1 , further comprising one or more sensors for monitoring at least one of fluid levels, pressure, or flow rates within the brushing system.

8. The brushing system of claim 1 , further comprising a user interface for initiating one or more functions selected from but not limited to performing a priming cycle, injection / evacuation, or performing a cleaning / rinsing cycle, and for adjusting dosage levels of toothpaste, water, or air through the base station.

9. The brushing system of claim 1 , wherein the toothpaste pump is connected to a source of toothpaste selected from but not limited to a toothpaste reservoir or a toothpaste cartridge.

10. The brushing system of claim 1 , wherein the fluid pump is connected to a source of fluid selected from one of but not limited to water, rinsing liquid and a hydrogen peroxide.

Citation Information

Patent Citations

  • Oral care appliance and method of operating thereof

    WO2020161563A1

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    WO2020161601A1