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WO2025102328A1 - Instrument de soins buccaux et son procédé de fabrication et d'utilisation - Google Patents

Instrument de soins buccaux et son procédé de fabrication et d'utilisation Download PDF

Info

Publication number
WO2025102328A1
WO2025102328A1 PCT/CN2023/132169 CN2023132169W WO2025102328A1 WO 2025102328 A1 WO2025102328 A1 WO 2025102328A1 CN 2023132169 W CN2023132169 W CN 2023132169W WO 2025102328 A1 WO2025102328 A1 WO 2025102328A1
Authority
WO
WIPO (PCT)
Prior art keywords
oral care
light
time
care implement
predetermined period
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/132169
Other languages
English (en)
Inventor
Jiang Zhou
Jinhong Yuan
Chaoyi Li
Yiwei YANG
Jingbo Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colgate Palmolive Co
Original Assignee
Colgate Palmolive Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Colgate Palmolive Co filed Critical Colgate Palmolive Co
Priority to PCT/CN2023/132169 priority Critical patent/WO2025102328A1/fr
Publication of WO2025102328A1 publication Critical patent/WO2025102328A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A61C17/221—Control arrangements therefor
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
    • A46B15/0034—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with a source of radiation, e.g. UV, IR, LASER, X-ray for irradiating the teeth and associated surfaces
    • 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
    • A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
    • 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
    • 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
    • A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3481—Vibrating brush body, e.g. by using eccentric weights
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0038—Arrangements for enhancing monitoring or controlling the brushing process with signalling means
    • A46B15/004—Arrangements for enhancing monitoring or controlling the brushing process with signalling means with an acoustic signalling means, e.g. noise
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0038—Arrangements for enhancing monitoring or controlling the brushing process with signalling means
    • A46B15/0044—Arrangements for enhancing monitoring or controlling the brushing process with signalling means with light signalling means
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0038—Arrangements for enhancing monitoring or controlling the brushing process with signalling means
    • A46B15/0046—Arrangements for enhancing monitoring or controlling the brushing process with signalling means with vibrating signalling means
    • 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

Definitions

  • Toothbrushing is an activity that every person is encouraged to undertake twice a day for approximately two or three minutes each session. While toothbrushing may remove plaque and bacteria from the user’s teeth and gums, toothbrushing alone may not whiten the user’s teeth to the user’s satisfaction. Tooth whitening may be achieved with specifically formulated toothpastes and other specific whitening formulations. Most tooth whitening systems currently available require a user to dedicate more time to their oral care beyond simply brushing their teeth. Such systems may require a user to place a whitening device into their mouth before or after toothbrushing, which may add more time to a user’s oral hygiene activities. Thus, a need exists for an oral care implement that can be used for toothbrushing activities and also includes improved tooth whitening functionality.
  • the present invention is directed to an oral care implement with a light emitting function to enhance tooth whitening.
  • the oral care implement may include an oral care tool for treating an oral cavity of a user and a control circuit.
  • the control circuit may include a power source, a light source for emitting light form the oral care tool, and a mode selection unit to allow user selection between a first mode and a second mode.
  • the light source Upon selection of the first mode, the light source is activated to emit light from the oral care tool at a first light intensity for a first predetermined period of time.
  • the second mode the light source is activated to emit light from the oral care tool at a second light intensity for the first predetermined period of time.
  • the second light intensity may be different than the first light intensity.
  • the invention may be an oral care implement comprising: an oral care tool for treating an oral cavity of a user during an oral care session; a control circuit comprising, in operable cooperation: a power source; a light source configured to emit light from the oral care tool of the oral care implement; and a mode selection unit configured to allow a user to select between at least a first mode and a second mode; wherein upon selection of the first mode by the user, the light source is activated to emit light from the oral care tool at a first light intensity for a first predetermined period of time; and wherein upon selection of the second mode by the user, the light source is activated to emit light from the oral care tool at a second light intensity for the first predetermined period of time, the second light intensity being different than the first light intensity.
  • the invention may be a method of operating an oral care implement during an oral care session, the oral care implement comprising a control circuit configured to operate the oral care implement in at least two user selectable modes comprising a first mode and a second mode, the method comprising: a) receiving a user mode selection selecting a desired one of the first mode and the second mode from the at least two user selectable modes; b-1) upon the user mode selection being the first mode, the oral care implement being activated so that: (i) a light source is activated at a first light intensity during a first portion of the oral care session; and b-2) upon the user mode selection being the second mode, the oral care implement being activated so that: (i) the light source is activated at a second light intensity that is greater than the first light intensity during the first portion of the oral care session.
  • the invention may be an oral care implement comprising: an oral care tool for treating an oral cavity of a user during an oral care session; a control circuit comprising, in operable cooperation: a power source; a light source configured to emit light from the oral care tool of the oral care implement; and an actuator unit; wherein upon activation of the actuator unit by a user, the light source is activated to emit light from the oral care tool at a first light intensity for a first predetermined period of time; and wherein upon expiration of the first predetermined period of time, the light source emitting the light from the oral care tool at a fourth light intensity for a second predetermined period of time, the fourth light intensity being greater than the first light intensity.
  • the invention may be method of performing an oral care session with an oral care implement comprising an oral care tool having tooth cleaning elements and a light source, the method comprising: activating an actuator unit of the oral care implement to activate the light source to emit light from the oral care tool at a first light intensity for a first predetermined period of time during which a user brushes his or her teeth with the tooth cleaning elements; upon expiration of the first predetermined period of time, altering the light source to emit the light from the oral care tool at a second light intensity for a second predetermined period of time, the second light intensity being greater than the first light intensity; and wherein during the second predetermined period of time the user holds distal ends of the tooth cleaning elements adjacent to the user’s front teeth so that the light is emitted onto the user’s front teeth.
  • the invention may be an oral care implement comprising: a head portion comprising a cavity comprising a floor, a sidewall, and an open top end; a printed circuit board comprising a light source located within the cavity of the head portion adjacent to the floor; an ultraviolet adhesive in the cavity atop of the printed circuit board; a head plate coupled to the head portion to close the open top end of the cavity; and tooth cleaning elements coupled to the head plate.
  • the invention may be a method of manufacturing an oral care implement, the method comprising: forming an injection molded component comprising a head portion, the head portion comprising a cavity having an open top end; positioning a printed circuit board in the cavity, the printed circuit board comprising a light source; introducing an ultraviolet adhesive into the cavity atop of the printed circuit board; curing the ultraviolet adhesive; inserting tooth cleaning elements through tuft holes in a head plate so that first portions of the tooth cleaning elements protrude from a rear surface of the head plate; melting the first portions of the tooth cleaning elements together to form a melt matte; and positioning the head plate over the open top end of the cavity of the head portion of the injection molded component and joining the head plate to the head portion of the injection molded component.
  • FIG. 1 is a front perspective view of an oral care implement in accordance with an embodiment of the present invention
  • FIG. 2 is a front perspective view of the oral care implement of FIG. 1 with a refill head thereof detached from a handle thereof;
  • FIG. 3 is an exploded front perspective view of the oral care implement of FIG. 1;
  • FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 1;
  • FIG. 5A is a perspective view of a head portion of the oral care implement of FIG. 1, illustrating a printed circuit board being inserted into a head cavity thereof;
  • FIG. 5A-1 is a view identical to FIG. 5A illustrating an alternative embodiment
  • FIG. 5B is a perspective view of the head portion of FIG. 5A with the printed circuit board seated in the head cavity;
  • FIG. 5C is a cross-sectional view taken along line VC-VC of FIG. 5B;
  • FIG. 5D is the perspective view of the head portion of FIG. 5B illustrating an ultraviolet adhesive being introduced into the head cavity;
  • FIG. 5E is the perspective view of FIG. 5D with the ultraviolet adhesive covering a top surface of the printed circuit board;
  • FIG. 5F is a cross-sectional view taken along line VF-VF of FIG. 5E;
  • FIG. 5G is the perspective view of the head portion of FIG. 5E illustrating a head plate with tooth cleaning elements coupled thereto being positioned to close an opening of the head cavity;
  • FIG. 5H is the perspective view of FIG. 5G with the head plate coupled to the head portion;
  • FIG. 6 is a close-up of area VI of FIG. 4;
  • FIG. 7 is an electrical schematic of a control circuit of the oral care implement of FIG. 1;
  • FIGS. 8A-8D illustrate a light intensity of a light emitted by the oral care implement changing as a user activates a mode selection button
  • FIG. 9 is a flow chart for operation of the oral care implement in accordance with an embodiment of the present invention.
  • FIG. 10 is a schematic illustration of a user brushing their teeth with the oral care implement of FIG. 1 during a first portion of an oral care session;
  • FIG. 11 is a schematic illustration of a user positioning the tooth cleaning elements of the oral care implement of FIG. 1 adjacent to the user’s front teeth during a second portion of an oral care session.
  • the oral care implement 1000 may comprise a handle portion 100 and a refill head 200.
  • the refill head 200 may be detachably coupled to the handle portion 100.
  • the refill head 200 may be replaceable so that when features of the refill head 200 become worn, a new refill head may be used with the handle portion 100 while offering the same functionalities.
  • the oral care implement 1000 may comprise an integrally formed handle and head in some embodiments.
  • the handle portion 100 may comprise a gripping portion 110 and a stem portion 120.
  • the gripping portion 110 may be a structural body that is configured to be gripped by a user during use of the oral care implement 1000 for performance of an oral care function, such as tooth brushing, tooth whitening, gum treatment, or the like.
  • the gripping portion 110 may be formed from a hard plastic material, such as polypropylene, ABS, or the like.
  • the stem portion 120 may form a structure to which the refill head 200 is configured to be attached when the refill head 200 is coupled to the handle portion 100.
  • the stem portion 120 may be a part of a motion inducing unit or motor, as described below.
  • the stem portion 120 may be integral with the gripping portion 110 to form a connection structure for attaching the refill head 200 to the handle portion 100.
  • a motion inducing unit or motor may be located within an interior of the stem portion to impart vibrations to the refill head 200 when in use.
  • the handle portion 100 may comprise one or more user-actuatable buttons to control various functions of the oral care implement 1000 as described herein.
  • the handle portion 100 comprises a power button 101 for powering the oral care implement 1000 on and off and a mode selection button 102 for altering a mode at which the oral care implement 1000 will operate when powered on. Additional details about the modes will be provided below.
  • the specific location of the power and mode buttons 101, 102 on the handle portion 100 may be different from that which is shown.
  • the power and mode buttons 101, 102 are illustrated as press buttons that are activated by pressing the buttons downwardly, alternative mechanisms may be used including conductive switches, slide switches, rotary switches, toggle switches, or the like.
  • the refill head 200 comprises a sleeve portion 210 and a head portion 220.
  • the sleeve portion 210 comprises connection features that are configured to engage the stem portion 120 to facilitate attachment of the refill head 200 to the handle portion 100.
  • the head portion 220 may comprise tooth cleaning elements 230 coupled thereto to facilitate a tooth cleaning function.
  • the tooth cleaning elements 230 may comprise bristles, lamella, rubber elements, elastomeric cleaning elements, or various different combinations of elements commonly used for tooth brushing.
  • the refill head 200 may comprise a soft tissue cleaner 298 located on the rear side of the head opposite the tooth cleaning elements 230 (see FIGS. 4 and 6) .
  • the soft tissue cleaner 298 may be formed from an elastomeric material (thermoplastic elastomer, thermoplastic polyurethane, rubber, silicone, or the like) and may comprise nubs, ridges, or the like to facilitate cleaning of the gums and other soft tissue surfaces.
  • the head portion 220 of the refill head 200 may form an oral care tool that is used to perform an oral care function, such as toothbrushing, tooth whitening, or the like.
  • an oral care function such as toothbrushing, tooth whitening, or the like.
  • the combination of the head portion 220 and the tooth cleaning elements 230 may form the oral care tool.
  • the oral care tool may not include any tooth cleaning elements and other functions may be performed with the oral care tool, as described below.
  • the oral care tool may be formed by the head portion 220 and any other functional component, such as a strand of floss, a light source for emitting a light onto oral care surfaces for treatment, a nozzle for injecting or dispensing a fluid or other composition, or the like.
  • oral care tool is not limited to a toothbrush but can be any tool used for oral care treatment purposes.
  • the handle portion 100 comprises a handle body 150 that defines a handle cavity 151 within which additional components are located.
  • the handle body 150 may comprise a bottom end 152 and a top end 153. There may be an opening 154 in the top end 153 of the handle body 150.
  • the oral care implement 1000 may comprise a handle chassis 160 having an upper compartment 161 and a lower compartment 162.
  • the oral care implement 1000 may comprise a motion inducing unit 170 that is positioned within the upper compartment 161.
  • the motion inducing unit 170 may be a motor or any other component capable of generating vibrations, oscillations, or the like that are transmitted to the head portion 220 of the refill head 200 when the refill head 200 is coupled to the handle portion 100.
  • the motion inducing unit 170 may comprise the stem portion 120.
  • the stem portion 120 When the motion inducing unit 170 is located in the upper compartment 161 of the handle chassis 160, the stem portion 120 may extend through an opening 163 in the top end of the handle chassis 160 and through the opening 154 in the top end 153 of the handle body 150.
  • elastomeric sleeve components that surround parts of the top and bottom of the motion inducing unit 170.
  • an upper and lower portion of the motion inducing unit 170 may have an elastomeric sleeve formed from a thermoplastic elastomer or the like to absorb motor vibration and achieve a low noise level product.
  • the absence of the two elastomeric sleeves results in a product noise around 58-60db, which is reduced to around 48db with the two elastomeric sleeves.
  • a power source 165 may be located in the lower compartment 162 of the handle chassis 160.
  • the power source 165 may comprise one or more batteries.
  • the power source 165 may be operably coupled to the motion inducing unit 170 so that when the oral care implement 1000 is powered on as described herein, power is transmitted from the power source 165 to the motion inducing unit 170.
  • the transmission of the power from the power source 165 to the motion inducing unit 170 may be controlled, at least in part, by a processor.
  • a printed circuit board 175 may include various electronic components, such as switches, processors, and the like, to facilitate operation of the oral care implement 1000 as described herein.
  • the printed circuit board 175 may comprise a power switch 176 that is aligned with the power button 101 so that actuating the power button 101 causes the power button 101 to contact and activate the power switch 176.
  • the printed circuit board may also include light emitting diodes surrounding the power switch 176 so light up the power button 101 when the oral care implement is powered on.
  • the printed circuit board 175 may comprise a mode switch 177 that is aligned with the mode selection button 102 so that actuating the mode selection button 102 causes the mode selection button 102 to contact and activate the mode selection switch 177.
  • the power and mode selection switches 176, 177 may be coupled to a processor such that activating the power and mode selection switches 176, 177 transmits a signal to the processor to power the device or change its mode of operation.
  • a processor may not be included.
  • An end cap 178 may be coupled to the bottom end 152 of the handle body 150 to close the handle cavity 151. That is, the bottom end 152 of the handle body 150 may have an opening into the handle cavity 151 so that the various electronic components described herein can be inserted into the handle cavity 151 during assembly of the oral care implement 1000.
  • the end cap 178 may be removably coupled to the handle body 150 so that when removed a user may be able to replace the power source 165.
  • the end cap 178 may not be capable of being removed unless it is cut with a saw or other cutting device to allow a user to recycle batteries per local regulation requirements.
  • the end cap 178 may not be removable from the handle body 150.
  • a plate with the power and mode selection buttons 101, 102 may also be included.
  • the handle chassis 160, the power source 165, the motion inducing unit 170, the printed circuit board 175, and the plate with the power and mode selection buttons 101, 102 may be located within the handle cavity 151 of the assembled handle portion 100 of the oral care implement 1000.
  • the power and mode selection buttons 101, 102 may extend through openings 157, 158 in a front face of the handle body 150.
  • the handle portion 100 may further comprise a handle coil 190.
  • the handle coil 190 may be operably coupled to the power source 165.
  • the handle coil 190 may comprise several loops of wire to create an electrical inductor.
  • the handle coil 190 may be positioned around a top end portion 164 of the handle chassis 160 so that the handle coil 190 is immediately adjacent to the top end 153 of the handle body 150. This ensures that the handle coil 190 will be very closely positioned relative to a coil in the refill head 200 when the refill head 200 is coupled to the handle portion 100 so that power may be transmitted inductively from the power source 165 in the handle cavity 151 to electronic components located within the refill head 200.
  • the refill head 200 comprises a refill body 215 that comprises the sleeve portion 210 and the head portion 220.
  • the head portion 220 may comprise a head cavity 221.
  • the sleeve portion 210 may comprise a sleeve cavity 211.
  • the head cavity 221 and the sleeve cavity 211 may be in spatial communication with one another such that an opening exists between the head cavity 221 and the sleeve cavity 211.
  • an ultraviolet adhesive may seal the opening after it is positioned into the head cavity 221 as described further herein below.
  • the refill head 200 comprises a head plate 235 that the tooth cleaning elements 230 are coupled to, such as by an anchor-free tufting process, staples, or other techniques now known or later discovered.
  • the head plate 235 may be coupled to the head portion 220 to close an open front end 222 of the head cavity 221.
  • the refill head 200 may further include a light generating module 240.
  • the light generating module 240 may comprise a printed circuit board 249 having one or more light sources 241 thereon.
  • the light sources 241 may be light emitting diodes, although other types of light sources may be used. In the exemplified embodiment, there are seven of the LEDs on the printed circuit board 249, although more or fewer LEDs may be used in other embodiments.
  • the light sources 241 of the light generating module 240 are operably coupled to a refill coil 290 via wires 280, 281.
  • the light generating module 240 When assembled, the light generating module 240 may be located within the head cavity 221 and the wires 280, 281 may extend from the head cavity 221 and through the sleeve cavity 211 to the refill coil 290, which may be located along or adjacent to a bottom end of the refill cavity 221.
  • the handle coil 190 is located within the handle cavity 151 to be in close proximity to the refill coil 290 located within the sleeve cavity 211 of the refill head 200.
  • Each of the two coils 190, 290 may be wire coils, each including several loops of wire to create an electrical inductor.
  • the two coils 190, 290 may be in sufficiently close proximity to be inductively coupled, i.e., when the handle coil 190 is powered by the power source 165 with an appropriate oscillating power signal, an induction field is established by the handle coil 190.
  • the induction field established by the handle coil 190 may be coupled to the refill coil 290 to induce a current to be generated within the refill coil 290.
  • the refill coil 290 is operably coupled to the light source 241 through the lead wires 280, 281, such that the current generated by the inductively coupled refill coil 290 provides power to the light source 241.
  • the refill head 200 further comprises a connection insert 250 that is configured to couple the refill head 200 to the handle portion 100.
  • the connection insert 250 may comprise a structure that allows the connection insert 250 to physically lock to the refill body 215 when the connection insert 250 is inserted into the sleeve cavity 211 through an opening in the bottom end of the refill head 200.
  • the connection insert 250 and the inner surface of the sleeve portion 210 of the refill head 200 may have mating attachment features that facilitate the creation of a physical lock between the connection insert 250 and the refill head 200 when the connection insert 250 is inserted into the sleeve cavity 211.
  • connection insert 250 may have a connection cavity 251 that is configured to receive the stem portion 120 of the handle portion 100 (with the stem portion 120 being formed by a shaft of the motion inducing unit 170 in accordance with the exemplified embodiment) .
  • the stem portion 120 of the handle portion 100 is positioned within the connection cavity 251 of the connection insert 250 of the refill head 200 and a physical or mechanical connection is formed between the connection insert 250 and the stem portion 120 of the handle portion 100.
  • the stem portion 120 (which is the shaft of the motion inducing unit 170) may be configured to oscillate when the motion inducing unit 170 is activated, and such oscillations may be transferred to the refill head 200 due to the connection between the refill head 200 and the stem portion 120.
  • the head portion 220 of the refill head 200 comprises a base structure 299 that defines a head cavity 221 having an open front end 222.
  • the head cavity 221 is defined by a cavity floor 223 and a cavity sidewall 224 that extends from the cavity floor 223 to the open front end 222.
  • a single alignment post 225 or more than two alignment posts 225 could be used.
  • the light generating module 240 on which the light source 241 is located may comprise one or more openings 242. More specifically, the openings 242 may extend through the thickness of the printed circuit board 249
  • the light generating module 240 may be positioned into the refill cavity 221 so that each of the two alignment posts 225 extends through one of the openings 242 in the light generating module 240. This ensures that the light generating module 240 is properly seated within the refill cavity 221.
  • FIG. 5A-1 is an identical view to FIG. 5A, illustrating an alternative embodiment with some features modified.
  • the light generating module 240a has more of the light sources 241a and the light sources 241a are arranged in a different pattern. In this embodiment there are ten of the light sources 241a whereas in the previous embodiment there were six of the light sources 241a. The number of light sources is not limiting of the present invention.
  • the printed circuit board 249 comprises two of the openings 242a, but the two openings 242a are located at the proximal and distal ends of the printed circuit board 249a.
  • the alignment posts 225a in the cavity of the head have been relocated to be positioned at proximal and distal portions of the cavity to align with the openings 242a.
  • the alignment posts 225, 225a may be hot melted to secure the light generating module 240, 240a in place.
  • FIGS. 5B and 5C illustrate the refill head 200 with the light generating module 240 positioned in the head cavity 221.
  • the light generating module 240 may be adjacent to, or in contact with, the cavity floor 223.
  • the alignment posts 225 extend through the openings 242 in the printed circuit board 249 of the light generating module 240 to fix the position of the light generating module 240 within the head cavity 221.
  • the fact of the alignment posts 225 extending through the openings 242 in the light generating module 240 also ensures that the printed circuit board 242 does not move during later steps in the assembly process.
  • FIG. 5C best illustrates the interior structure of the head cavity 221.
  • the cavity sidewall 224 may comprise a lower wall portion 226, a middle wall portion 228, an upper wall portion 231, a lower ledge 227, and an upper ledge 229.
  • the lower wall portion 226 may extends from the cavity floor 223 and may protrude beyond the lower ledge 227.
  • the lower ledge 227 may be recessed relative to the distal end of the lower wall portion 226.
  • the middle wall portion 228 may extend from the lower ledge 227 and may protrude beyond the upper ledge 229.
  • the upper ledge 229 may be recessed relative to the distal edge of the middle wall portion 228.
  • the upper wall portion 231 may extend from the upper ledge 229 to a front surface 232 of the base structure 299 of the head portion 220.
  • the portion of the lower wall portion 226 that protrudes from the lower ledge 227 may be annularly spaced apart from the middle wall portion 228 in a radial direction.
  • the portion of the middle wall portion 228 that protrudes from the upper ledge 229 may be annularly spaced from the upper wall portion 231 in a radial direction.
  • the lower wall portion 226 may work as a firewall to prevent the glue/adhesive (which is introduced into the head cavity 221 in a following step, described below) from filling the head cavity 221 to the head plate welding line.
  • the lower wall portion 226 may function as a fill line for the glue/adhesive.
  • the head plate 235 may be welded to the base structure 299 of the head portion 220 along the upper sidewall portion 231 and possibly also the upper ledge 229 and/or portions of the middle sidewall portion 228.
  • the passageway 255 that connects the head cavity 221 to the sleeve cavity 211 of the sleeve portion 210 of the refill head 200 is visible.
  • an adhesive 300 may be introduced into the head cavity 221 atop the printed circuit board 249 of the light generating module 240.
  • the adhesive may be an ultraviolet glue.
  • the adhesive 300 may form a potting material that is located in the head cavity 221 atop the printed circuit board 249 of the light generating module 240 and between the light generating module 240 and the head plate 235, to be described later.
  • a sufficient amount of the adhesive 300 may be introduced into the head cavity 221 to completely cover the printed circuit board 249.
  • the adhesive 300 in the head cavity 221 may have a mass of 0.09 to 0.15 grams.
  • the adhesive 300 may form a film on the light generating module 240 having a thickness of between 0.05mm and 0.1mm, or more specifically between 0.05mm and 0.08mm.
  • the adhesive 300 may have a top surface 301 that is flush with or recessed relative to the distal end 233 of the lower wall portion 226 of the cavity sidewall 224.
  • the adhesive 300 may be light transmissive so that light generated/emitted by the light source 241 of the light generating module 240 transmits through the adhesive 300.
  • the adhesive 300 may form a film on the light generating module 240 to help gather the light and increase the brightness of the emitted light. After the adhesive 300 is introduced into the head cavity 221, the adhesive 300 may be cured by applying an ultraviolet light onto the adhesive 300.
  • the head plate 235 may be coupled to the base structure 299 of the head portion 220 of the refill head 200.
  • the head plate 235 may comprise tuft holes 236 that extend from a front surface 237 of the head plate 235 to a rear surface 238 of the head plate 235.
  • the tooth cleaning elements 230 may be arranged into tufts 282 such that each tuft 282 is inserted into one of the tuft holes 236.
  • the bristle tufts 282 may be inserted through the tuft holes 236 so that a first portion 283 of the bristle tufts 282 protrudes from the rear surface 238 of the head plate 235 and a second portion 284 of the bristle tufts 282 protrudes from the front surface 237 of the head plate 235.
  • the first portions 283 of the bristle tufts 282 may then be melted together to form a melt matte 285 that is located adjacent to the rear surface 238 of the head plate 235. Heat may be applied to the second portions 283 of the bristle tufts 282 to melt the second portions 283 of the bristle tufts 282 together to form the melt matte 285.
  • the melt matte 285 is a layer of material formed by the melting and cooling of the second portion 283 of the bristle tufts 282 that is positioned adjacent to the rear surface 238 of the head plate 235.
  • the melt matte 285 secures the tooth cleaning elements 230 to the head plate 235 and prevents their removal once the head plate 235 is coupled to the base structure 299 of the head portion 220.
  • the head plate 235 may be transparent or translucent or formed from a light transmissive material so that light emitted from the light module 140 emits through the head plate 235.
  • the tooth cleaning elements 230 or a subset thereof be formed from a transparent material so that light emitted from the light module 140 emits through the tooth cleaning elements 230.
  • the tooth cleaning elements 230 may be fully transparent.
  • the tooth cleaning elements may be semi-transparent.
  • some of the tooth cleaning elements 230 may be transparent and others may not be transparent.
  • the central cleaning elements may be transparent and perimeter tooth cleaning elements may not be transparent.
  • the head plate 235 may be positioned over the head cavity 221 to close the open front end 222 of the head cavity 221.
  • the head plate 235 may be positioned so that the head plate 235 is supported by the upper ledge 229.
  • the head plate 235 may be welded to the base structure 299 of the head portion 220 of the refill head 200, such as by using thermal welding techniques.
  • the head plate 235 may be adhered to the base structure 299 of the head portion 220 of the refill head 200 with adhesives.
  • the head plate 235 and the base structure 299 of the head portion 220 of the refill head 200 may include mating structural/mechanical features that mechanically lock the head plate 230 to the base structure 299 of the refill head 200.
  • the head cavity 221 is closed by the head plate 235.
  • the adhesive 300 is located between and at least partially fills in the space between the rear surface 238 of the head plate 235 and the light generating module 240. More specifically, the adhesive 300 is located between the melt matte 285 and the light generating module 240.
  • light generated by the light generating module 240 transmits through the adhesive 300 and through the head plate 235 and/or the tooth cleaning elements 230 or a subset thereof to transmit the light onto a user’s teeth and gums or into the user’s oral cavity.
  • the head portion 220 comprises a longitudinal axis A-A.
  • the tooth cleaning elements 130 comprise distal ends that define a concave cleaning surface in an axial direction.
  • the concave cleaning surface of the tooth cleaning elements 130 may be configured to match the contour of the outer surfaces of the user’s front teeth.
  • the oral care implement 1000 may therefore be oriented so that the distal ends of the tooth cleaning elements 130 are adjacent to and facing the outer surfaces of the user’s front teeth. This technique may be used during a dedicated light treatment to the user’s front teeth outside of the more conventional tooth brushing.
  • a user may use the oral care implement 1000 to apply light to the outer surfaces of the front teeth (which are most visible to others) to facilitate whitening of those teeth separate from the use of the oral care implement 1000 for brushing the teeth.
  • the tooth cleaning elements 130 may function as a light optical fiber to deliver the light from the light generating module 240 directly to the surfaces of the teeth. This may avoid toothpaste bubbles impacting the effectiveness of the light being transmitted by blocking the light from reaching the teeth.
  • control circuit 50 of the oral care implement 1000 is illustrated.
  • Components of the control circuit 50 may be located within or along the handle portion 100, within or along the refill head 200, or both. Many of the components of the control circuit 50 have been described above, and the description of those components in terms of their function and location remains applicable.
  • the control circuit 50 may include a processor 400, the power source 165, the light generating module 140, the motion inducing unit 170, an actuator unit 310 which includes a power unit 311 and a mode selection unit 312, a timer unit 320, and a time indicator unit 321.
  • the handle and head coils 190, 290 may also form a part of the control circuit 50 in some embodiments.
  • certain of the components noted above may be omitted, and thus the control circuit 50 may comprise any of one or more of the components noted herein and shown in FIG. 7.
  • the various components may be operably coupled together with wires, through wireless couplings, or the like. In some embodiments, the components may be coupled together via the processor 400.
  • the light generating module 140 and the head coil 290 are located in or along the refill head 200 and the remaining components, including the power source 165, the motion inducing unit 170 the timer unit 320, the time indicator unit 321, the processor 400, and the actuation unit 310 are located in or along the handle portion 100.
  • the power source 165 may supply power to all of the other components of the control circuit 50.
  • the motion inducing unit 170 may comprise a motor or other vibrating device that may be activated to cause the oral care tool or the head portion 220 of the refill head 200 to vibrate, oscillate, or the like, which may enhance its cleaning ability.
  • the light generating module 140 may generate and emit light, as described further below.
  • the light generating module 140 may comprise one or more light sources, such as light emitting diodes or the like, to generate and emit the light in a desired wavelength.
  • the power unit 311 may comprise the power button 101 and the power switch 176.
  • the mode selection unit 312 may comprise the mode selection button 102 and the mode selection switch 177.
  • the timer unit 320 may comprise any time keeping device to track time elapsed.
  • the time indicator unit 321 may be configured to provide a visual, auditory, or tactile indication to a user.
  • the time indicator unit 321 may comprise a light source that illuminates to provide information to the user.
  • the time indicator unit 321 may comprise one of the light sources 141 previously described, or a dedicated light source.
  • the time indicator unit 321 may comprise a light source that is configured to emit light through the handle portion 100 at a location that would be visible to the user during use of the oral care implement 1000 for tooth cleaning.
  • the time indicator unit 321 may comprise the motion inducing unit 170 or some other motion inducing unit that vibrates to provide information to the user.
  • the motion inducing unit 170 may vibrate one or more times to indicate time elapsed to a user, as described further below.
  • the motion inducing unit 170 may comprise a sound generating unit that is configured to create an audible sound to provide information to the user.
  • the sound generating unit may comprise a speaker or other device capable of generating sound.
  • the time indicator unit 321 may be activated to provide the user with an indication of an amount of time elapsed, as described further below.
  • FIGS. 8A-8D operation of the oral care implement 1000 is illustrated in accordance with an embodiment of the present invention.
  • the oral care implement 1000 is configured to operate in a selected mode from a plurality of selectable modes. Specifically, before the user powers the oral care implement 1000 on, the user may press the mode selection button 102 one or more times to select a desired mode. In an alternative embodiment, the user may power the oral care implement 1000 on first, and then actuate the mode selection button 102 to select the desired mode.
  • FIGS. 8A-8D also includes a mode indicator section comprising three different mode indicators 103a, 103b, 103c.
  • one of the three mode indicators 103a, 103b, 103c will be illuminated to indicate to the user which mode has been selected.
  • selection of a mode may require user activation of the mode selection unit to select a desired mode and user activation of the power unit to power on the device, with the interaction of the mode selection unit and the power unit being able to be performed in any order.
  • the oral care implement 1000 may comprise three modes. In another embodiment, the oral care implement 1000 may comprise two modes. In yet another embodiment, the oral care implement 1000 may comprise four or more modes.
  • the intensity of the light generated and emitted by the light generating module 140 changes depending on which mode is selected.
  • FIG. 8A illustrates the oral care implement 1000 in the first mode whereby the light generating module 140 generates and emits light at a first light intensity.
  • FIG. 8B illustrates the oral care implement in the second mode whereby the light generating module 140 generates and emits light at a second light intensity.
  • FIG. 8C illustrates the oral care implement in the third mode whereby the light generating module 140 generates and emits light at a third intensity.
  • FIGS. 8A-8D illustrate the oral care implement in the first mode once again, with the light generating module 140 generating and emitting light at the first intensity.
  • the oral care implement 1000 may cycle through the three (or two or more than three) modes. Once the user decides on a mode for operation, the user may press the power button 101 to power the oral care implement 1000 on. While FIGS. 8A-8D illustrate the light generating module 140 emitting light, in some embodiments the light generating module 140 may not emit light until the power button 101 is activated.
  • the illustration of light being emitted is for descriptive purposes to depict the change in light intensity in the different modes.
  • the light generating module 140 may be configured to generate light that is emitted from the front surface of the head portion 220 (i.e., the oral care tool) of the oral care implement 1000. Because the light generating module 140 is located within the head cavity with the light sources 141 facing the front surface of the head portion 220, once the light sources 141 are activated the light emitted therefrom will be emitted towards and perhaps through the front surface of the head portion 220. The light generated by the light generating module 140 may be configured to emit through the head plate 235. Additionally, or alternatively, the light generated by the light generating module 140 may be configured to emit through the tooth cleaning elements 230.
  • the head portion 220 and/or the head plate may have an opening or window through which the light may be emitted.
  • the light may be emitted from the front surface of the head portion 220 so that the light is emitted in the same direction as the tooth cleaning elements 130 extend from the head portion 220. As such, the light emitted from the light generating module 140 will be emitted onto the teeth during toothbrushing.
  • the light generating module 140 may generate and emit blue light.
  • the light generating module 140 may generate and emit light in a wavelength range of 380nm to 440nm, more specifically 390nm to 430nm, more specifically 400nm to 420nm, and more specifically 405nm to 415nm. Blue light wavelength may be beneficial for tooth whitening. If other benefits are desired, light in other wavelengths may be used.
  • the light generating module 140 may emit light in the same wavelength regardless of which mode is selected. Thus, in an embodiment, in each of the first, second, and third modes, the light generating module 140 may generate and emit the light in the same wavelength.
  • the various first, second, and third light intensities noted above may be luminous intensities.
  • the first light intensity may be between 10-40mcd.
  • the second light intensity may be between 20-70mcd.
  • the third intensity may be between 10-40mcd.
  • the second light intensity may be greater than the third light intensity.
  • the third light intensity may be greater than the second light intensity.
  • the third light intensity may be the same as the first light intensity.
  • the first, second, and third light intensities may be different from one another. In some embodiments, at least two of the first, second, and third light intensities may be different from one another.
  • the motion inducing unit 170 may be configured to vibrate the oral care tool during use to enhance the performance of the oral care implement 1000 at removing plaque and bacteria from the user’s teeth and gums.
  • the motion inducing unit 170 may be configured to vibrate the oral care tool at a first vibration intensity when the oral care implement 1000 is in the first mode, a second vibration intensity when the oral care implement 1000 is in the second mode, and a third vibration intensity when the oral care implement 1000 is in the third mode.
  • the first, second, and third vibration intensities may be different from one another.
  • the second vibration intensity may be greater than the first vibration intensity and the third vibration intensity may be greater than the second vibration intensity.
  • the motion inducing unit 170 in the first mode may operate with a frequency of about 267Hz (32000RPM) and a duty cycle of about 36%
  • the motion inducing unit 170 in the second mode may operate with a frequency of about 267Hz (32000RPM) and a duty cycle of about 54%
  • the motion inducing unit 170 in the third mode may operate with a frequency of about 308HZ (37000RPM) and a duty cycle of about 32%.
  • the term “about” as used in this paragraph includes the value listed plus/minus 10% of that value.
  • the table below provides an example of the duration, vibration intensity, and light intensity for three modes in accordance with an exemplary and non-limiting embodiment.
  • each mode at least one of the light intensity or the vibration intensity is different than in each other mode. So, for example, comparing the first and second modes, at least one of the second light intensity and the second vibration intensity is different than at least one of the first light intensity and the first vibration intensity. Comparing the second and third modes, at least one of the third light intensity and the third vibration intensity is different than at least one of the second light intensity and the second vibration intensity. Comparing the first and third modes, at least one of the first light intensity and the first vibration intensity is different than the third light intensity and the third vibration intensity. In some embodiments, the light intensity and the vibration intensity differ between the different modes.
  • the oral care implement 1000 upon the user selecting the desired mode and powering the oral care implement 1000, the oral care implement 1000 will operate in the selected mode for a predetermined duration (unless the oral care implement 1000 is prematurely powered off by the user) . In some embodiments, after expiration of the predetermined duration, the oral care implement 1000 will automatically power off. In other embodiments, after expiration or the predetermined duration, the oral care implement 1000 will indicate the end of the predetermined duration to the user, either visually, auditorily, or tactilely. In some embodiments the wavelength at which the light is emitted is the same in all of the modes, but either the light or vibration intensity, or both, changes as the modes change.
  • the user selects a mode from the plurality of modes and powers on the oral care implement 1000. This may be achieved by the user pressing the mode selection button 102 until the desired mode is selected and then the user pressing the power button 101.
  • the light generating module 140 upon the user selecting a mode and powering the oral care implement 1000 on, the light generating module 140 generates and emits light at an intensity level that corresponds to the selected mode. Thus, if the user selects the first mode, then the light generating module 140 will emit the light at the first light intensity. If the user selects the second mode or the third mode, the light generating module 140 will emit the light at the second or third light intensity, respectively.
  • the light generating module 140 will generate the light at the intensity level that corresponds to the selected mode for a first duration or a first pre-determined period of time that corresponds to a first portion of an oral care session.
  • the first portion of the oral care session may have a duration that corresponds to an amount of time during which a user should brush his or her teeth with the tooth cleaning elements 130 of the oral care implement 1000.
  • the first duration or the first pre-determined period of time may be between 2 minutes and 3 minutes.
  • the first duration or the first pre-determined period of time may be approximately 2 minutes, which is generally accepted to be an appropriate period of time for each tooth brushing session.
  • the user may brush his/her teeth in the conventional manner.
  • the light generating module 140 emits the light in the blue light wavelength to enhance the whitening of the teeth during the tooth brushing activity.
  • the user may be encouraged to use a specific toothpaste during the toothbrushing activities to further enhance the whitening effect.
  • a toothpaste may comprise hydrogen peroxide, carbamide peroxide, or the like, which may be activated by the blue wavelength light emitted onto the teeth by the light generating module 140.
  • the time indicator unit 321 may be activated to indicate to the user that the first pre-determined period of time has expired or elapsed.
  • the time indicator unit 321 may comprise lights, sounds, and/or tactile indicators that will be seen, heard, or felt by the user.
  • the time indicator unit 321 may be activated by pulsing a motor or motion inducing unit three times to indicate the end of the first pre-determined period of time to the user. Upon the user seeing, hearing, or feeling the time indicator unit 321, the user will be informed that the first pre-determined period of time associated with the first portion of the oral care session has finished or ended.
  • the time indicator unit 321 may be operably coupled to the timer unit 320 to keep track of the time elapsed during the oral care session so that the time indicator unit 321 may be activated upon expiration of the first pre-determined period of time associated with the first portion of the oral care session.
  • the light generating module 140 may begin to emit light at a fourth light intensity for a second pre-determined period of time or a second duration.
  • the light generating module 140 may immediately alter from emitting light at the first (or second or third) light intensity to emitting the light at the fourth light intensity.
  • the light generating module 140 may temporarily shut off and stop emitting light, and then transition to emitting the light at the fourth light intensity.
  • the fourth light intensity may be greater than the first, second, and third light intensities.
  • the fourth light intensity may be between 40mcd and 200mcd, more specifically between 40mcd and 150mcd, and still more specifically between 40mcd and 100mcd. In other embodiments, the fourth light intensity may be greater than 70mcd.
  • the light generating module 140 may emit the light at the fourth light intensity for a second pre-determined period of time.
  • the second pre-determined period of time may correspond to a second portion of the oral care session.
  • the second pre-determined period of time may be between 30 seconds and 120 seconds, or more specifically between 30seconds and 90 seconds, or between 45 seconds and 75 seconds. In one embodiment, the second pre-determined period of time may be approximately 60 seconds (approximately including a tolerance of plus or minus 5 seconds) .
  • the light generating module 140 may emit the light in the blue light wavelengths noted above during the second portion of the oral care session. Thus, while the light intensity may change from the first to the second portion of the oral care session, the wavelength of the light may remain the same.
  • the user may position the toothbrush so that the distal ends of the tooth cleaning elements are adjacent to the user’s front teeth.
  • the user may no longer be encouraged to brush the teeth in the conventional way, but may instead be encouraged to place and hold the toothbrush with the distal ends of the tooth cleaning elements in contact with or adjacent to the outer surfaces of the user’s front teeth.
  • the light emitted by the light generating module 140 will be continuously emitted onto the outer surfaces of the user’s front teeth to provide the user’s front teeth with the whitening benefits provided by the blue wavelength light.
  • the user’s front teeth are generally the teeth that are most seen by others, and thus, having a time for a dedicated light treatment to the front teeth may benefit the user by whitening those teeth which are most visible to others.
  • the light generating module 140 may automatically power off. In other embodiments, the light generating module 140 may continue generating the light at the fourth light intensity until the user powers the oral care implement 1000 off. Thus, if a user desires to have the dedicated front tooth treatment for a longer period of time, the user can choose to do this.
  • the transition of the light generating module 140 from generating light at the first, second, or third intensity to generating the light at the fourth intensity happens in only one of the modes.
  • the light generating module 140 may generate the light in the first or second light intensity for the first predetermined period of time, and then power off.
  • the light generating module 140 may generate the light in the third light intensity for the first predetermined period of time and then emit the light in the fourth light intensity for the second predetermined period of time.
  • the mode selection may dictate whether the dedicated front tooth light treatment process occurs or not during the oral care session.
  • the motion inducing unit 170 may be activated to impart vibrations or oscillation to the oral care tool during the first portion of the oral care session in each of the first, second, and third modes. However, after expiration of the first pre-determined period of time, the motion inducing unit 170 may be deactivated. Thus, the motion inducing unit 170 may be inactive during the second portion of the oral care session so that the oral care tool is not vibrating during the second portion of the oral care session. This is because while the vibration may be useful during tooth cleaning in the conventional way, the vibration may not be useful during the dedicated front tooth light treatment where removing plaque and debris from the teeth is not the primary task.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Brushes (AREA)

Abstract

L'invention concerne un instrument de soins buccaux ayant une fonction d'émission de lumière pour améliorer le blanchiment des dents. L'instrument de soins buccaux peut comprendre un outil de soins buccaux pour traiter une cavité buccale d'un utilisateur et un circuit de commande. Le circuit de commande peut comprendre une source d'alimentation, une source de lumière pour émettre de la lumière à partir de l'outil de soins buccaux, et une unité de sélection de mode pour permettre à l'utilisateur de choisir entre un premier mode et un second mode. Lors de la sélection du premier mode, la source de lumière est activée pour émettre de la lumière à partir de l'outil de soins buccaux à une première intensité lumineuse pendant une première partie d'une session de soins buccaux. Lors de la sélection du second mode, la source de lumière est activée pour émettre de la lumière à partir de l'outil de soins buccaux à une seconde intensité lumineuse pendant la première partie de la session de soins buccaux. La seconde intensité lumineuse peut être différente de la première intensité lumineuse.
PCT/CN2023/132169 2023-11-17 2023-11-17 Instrument de soins buccaux et son procédé de fabrication et d'utilisation Pending WO2025102328A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/132169 WO2025102328A1 (fr) 2023-11-17 2023-11-17 Instrument de soins buccaux et son procédé de fabrication et d'utilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/132169 WO2025102328A1 (fr) 2023-11-17 2023-11-17 Instrument de soins buccaux et son procédé de fabrication et d'utilisation

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WO2025102328A1 true WO2025102328A1 (fr) 2025-05-22

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070009856A1 (en) * 2005-05-25 2007-01-11 Biolase Technology, Inc. Device having activated textured surfaces for treating oral tissue
KR100904477B1 (ko) * 2009-02-17 2009-06-23 티엔씨 퍼스트 주식회사 자외선 발광다이오드를 이용한 살균 칫솔
JP2010213831A (ja) * 2009-03-16 2010-09-30 Panasonic Electric Works Co Ltd 歯ブラシ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070009856A1 (en) * 2005-05-25 2007-01-11 Biolase Technology, Inc. Device having activated textured surfaces for treating oral tissue
KR100904477B1 (ko) * 2009-02-17 2009-06-23 티엔씨 퍼스트 주식회사 자외선 발광다이오드를 이용한 살균 칫솔
JP2010213831A (ja) * 2009-03-16 2010-09-30 Panasonic Electric Works Co Ltd 歯ブラシ

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