US20080083074A1 - Mouth cleaning device - Google Patents
Mouth cleaning device Download PDFInfo
- Publication number
- US20080083074A1 US20080083074A1 US11/905,640 US90564007A US2008083074A1 US 20080083074 A1 US20080083074 A1 US 20080083074A1 US 90564007 A US90564007 A US 90564007A US 2008083074 A1 US2008083074 A1 US 2008083074A1
- Authority
- US
- United States
- Prior art keywords
- current
- electrode
- cleaning device
- flow
- mouth cleaning
- 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.)
- Abandoned
Links
Images
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
-
- 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
-
- 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
- A46B15/0022—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with an electrical means
-
- 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
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/20—Applying electric currents by contact electrodes continuous direct currents
- A61N1/26—Electromedical brushes; Electromedical massage devices ; Combs
Definitions
- the present invention relates to a mouth cleaning device for improving oral hygiene by flowing a minute current in a mouth.
- a conventional mouth cleaning device an electric toothbrush or an ion toothbrush has been known.
- the conventional mouth cleaning device removes plaque from teeth by flowing a minute current in a mouth, thereby enhancing cleaning effect of brushing, metabolism of oral tissues or blood flow.
- Japanese Patent No. 2560162 describes therein a toothbrush including a head portion where bristles are arranged and a handle portion where a battery is accommodated, wherein an electrode connected with one pole of the battery is arranged on a part of a surface of the handle portion, whereas an electrode connected with the other pole of the battery is arranged on the head portion.
- the present invention provides a mouth cleaning device that is efficient in massaging gum tissues.
- a mouth cleaning device including: a head portion provided with bristles and an electrode and a handle portion provided with an electrode, wherein when an electric circuit is formed from one electrode to the other electrode via a human body by application of a voltage to the electrodes, a pulse current having a frequency of about 4000 Hz to about 15000 Hz flows therein.
- the pulse current has a frequency of about 9090 Hz.
- the present invention in which the pulse current having the frequency of about 4000 Hz to about 15000 Hz is made to flow is efficient in stimulating gum tissues and improving gum health.
- FIG. 1 shows a block circuit diagram of an exemplary embodiment of the present invention
- FIG. 2 is a cross sectional view of an exemplary toothbrush of the present invention
- FIG. 3 illustrates an explanatory diagram for explaining exemplary variations in hemoglobin oxygen saturation of the embodiment of the present invention to.
- FIG. 4 provides an explanatory diagram for explaining variations in an exemplary BOP (Bleeding On Probing) improvement rate of the embodiment of the present invention.
- FIG. 2 there are illustrated a head portion 1 formed by arranging bristles 10 on one end side of a shaft 11 and a handle portion 2 accommodating therein a power source (e.g., battery or the like) 20 .
- the handle portion 2 includes therein a driving shaft 21 having one end connected with the head portion 1 , an actuator 22 for moving the driving shaft 21 in an axial reciprocating motion or the like, and a circuit board 24 .
- the handle portion 2 has an electrode 23 on an outer surface thereof, and the head portion 1 has an electrode 13 near roots of the bristles 10 .
- the electrode 23 is connected with the positive pole of the battery 20 via an output resistor Ro 1 and a boosting circuit 3 mounted on the circuit board 24 .
- the electrode 13 of the head portion 1 is connected with the grounded negative pole of the battery 20 via a conduction plate 12 installed inside the shaft 11 , the driving shaft 21 , and the circuit board 24 (i.e., an output resistor RO 2 , a current limit transistor TRa and limit resistor Rlim 2 mounted thereon).
- the circuit board 24 has a current limit circuit 4 shown in FIG. 1 , in addition to the boosting circuit 3 .
- the current limit circuit 4 which is formed of the control resistor Rlim 1 , the current limit transistor TRa and a limit resistor Rlim 2 , generates a constant base current from a reference DC voltage V R (current limit control DC voltage) via the control resistor Rlim 1 , and limits a collector current that can flow through the current limit transistor TRa.
- the control resistor Rlim 1 serves to adjust the reference DC voltage V R , and can variably adjust a current limit when it is configured as a variable resistor, according to individual differences in a resistance of a human body, individual differences in reaction to a current and the like. It is preferable that the maximum value of the limited current which can flow through the human body is lower than or equal to about 300 ⁇ A.
- the boosting circuit 3 boosts a battery voltage V B and generates a voltage V h (V h >V B ) under the control of a boost control circuit 30 .
- the current flows from an output resistor Ro 1 to the current limit transistor TRa via the electrode 23 , the human body, the electrode 13 , the conduction plate 12 , the driving shaft 21 and an output resistor Ro 2 .
- the current is limited to, e.g., about 100 ⁇ A, by the aforementioned base current. Therefore, even when the resistance of the human body is low, the current greater than or equal to about 100 ⁇ A does not flow and, also, an surge current can be suppressed.
- a transistor TRb which temporarily blocking a current by reducing a base potential of the pulsed current limit transistor TRa to zero at regular intervals so that the current can flow through the human body.
- FIG. 3 shows variations in hemoglobin oxygen saturation obtained when a pulsed current, a DC current, and no current are made to flow, wherein the saturation values are normalized with respect to the value obtained when no current is made to flow.
- the hemoglobin oxygen saturation indicates a combination ratio between oxygen and hemoglobin in red blood cells flowing through gum blood vessels. Since the oxygen sufficiency in tissues can be monitored by measuring the hemoglobin oxygen saturation, it serves as an indicator representing a state of inflammation of gums. When the state of gum health is poor due to the inflammation of gums or the like, oxygen supply cannot meet oxygen demand and, accordingly, oxygen becomes insufficient (low hemoglobin oxygen saturation).
- the saturation is higher when the DC current is made to flow than when no current is made to flow.
- the saturation becomes further higher when a pulsed current of about 4545 Hz is made to flow, and highest when a pulse current of 9090 Hz is made to flow.
- the saturation is smaller when a pulsed current of 15000 Hz is made to flow than when the pulsed current of 9090 Hz is made to flow.
- FIG. 4 illustrates variations in BOP (Bleeding On Probing) when the pulsed current of 4545 Hz is made to flow for one month during tooth brushing and when no current is made to flow.
- BOP Beleeding On Probing
- the electrode 13 is a negative electrode to which a single pole pulsed current is supplied to prevent elution of an electrode metal.
- teeth or gums serve as a cathode.
- a metal of the anode is eluted, and the eluted metal is deposited on the teeth or the gums serving as the anode.
- the anode can be made of a material other than a metal or a material that is not eluted. If such a material is employed as the electrode 13 , the electrode 13 can be positively biased or AC-biased.
- the actuator 22 (or another driving unit) can be omitted.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
- Massaging Devices (AREA)
- Processing Of Meat And Fish (AREA)
- Sink And Installation For Waste Water (AREA)
- Seal Device For Vehicle (AREA)
- Closures For Containers (AREA)
Abstract
Description
- The present invention relates to a mouth cleaning device for improving oral hygiene by flowing a minute current in a mouth.
- As for a conventional mouth cleaning device, an electric toothbrush or an ion toothbrush has been known. The conventional mouth cleaning device removes plaque from teeth by flowing a minute current in a mouth, thereby enhancing cleaning effect of brushing, metabolism of oral tissues or blood flow. For example, Japanese Patent No. 2560162 describes therein a toothbrush including a head portion where bristles are arranged and a handle portion where a battery is accommodated, wherein an electrode connected with one pole of the battery is arranged on a part of a surface of the handle portion, whereas an electrode connected with the other pole of the battery is arranged on the head portion. When a user inserts the head portion into a mouth while holding the handle portion, a minute current flows through a body from a hand holding the handle portion to contact portions between the head portion and teeth or gums inside the mouth. Further, Utility Model Laid-open Application No. S62-30849 describes therein a toothbrush that supplies a low frequency square wave into a mouth.
- However, the conventional toothbrush is not efficient in massaging gum tissues.
- In view of the above, the present invention provides a mouth cleaning device that is efficient in massaging gum tissues.
- In accordance with an embodiment of the present invention, there is provided a mouth cleaning device including: a head portion provided with bristles and an electrode and a handle portion provided with an electrode, wherein when an electric circuit is formed from one electrode to the other electrode via a human body by application of a voltage to the electrodes, a pulse current having a frequency of about 4000 Hz to about 15000 Hz flows therein.
- Preferably, the pulse current has a frequency of about 9090 Hz.
- The present invention in which the pulse current having the frequency of about 4000 Hz to about 15000 Hz is made to flow is efficient in stimulating gum tissues and improving gum health.
- The objects and features of the present invention will become apparent from the following description of embodiments, given in conjunction with the accompanying drawings, in which:
-
FIG. 1 shows a block circuit diagram of an exemplary embodiment of the present invention; -
FIG. 2 is a cross sectional view of an exemplary toothbrush of the present invention; -
FIG. 3 illustrates an explanatory diagram for explaining exemplary variations in hemoglobin oxygen saturation of the embodiment of the present invention to; and -
FIG. 4 provides an explanatory diagram for explaining variations in an exemplary BOP (Bleeding On Probing) improvement rate of the embodiment of the present invention. - The embodiments of the present invention will be described with reference to the accompanying drawings which form a part hereof. Referring to
FIG. 2 , there are illustrated a head portion 1 formed by arrangingbristles 10 on one end side of ashaft 11 and ahandle portion 2 accommodating therein a power source (e.g., battery or the like) 20. Thehandle portion 2 includes therein adriving shaft 21 having one end connected with the head portion 1, anactuator 22 for moving thedriving shaft 21 in an axial reciprocating motion or the like, and acircuit board 24. Moreover, thehandle portion 2 has anelectrode 23 on an outer surface thereof, and the head portion 1 has anelectrode 13 near roots of thebristles 10. - As illustrated in
FIG. 1 , theelectrode 23 is connected with the positive pole of thebattery 20 via an output resistor Ro1 and aboosting circuit 3 mounted on thecircuit board 24. Further, theelectrode 13 of the head portion 1 is connected with the grounded negative pole of thebattery 20 via aconduction plate 12 installed inside theshaft 11, thedriving shaft 21, and the circuit board 24 (i.e., an output resistor RO2, a current limit transistor TRa andlimit resistor Rlim 2 mounted thereon). - The
circuit board 24 has acurrent limit circuit 4 shown inFIG. 1 , in addition to theboosting circuit 3. Thecurrent limit circuit 4, which is formed of the control resistor Rlim1, the current limit transistor TRa and a limit resistor Rlim2, generates a constant base current from a reference DC voltage VR (current limit control DC voltage) via the control resistor Rlim1, and limits a collector current that can flow through the current limit transistor TRa. The control resistor Rlim1 serves to adjust the reference DC voltage VR, and can variably adjust a current limit when it is configured as a variable resistor, according to individual differences in a resistance of a human body, individual differences in reaction to a current and the like. It is preferable that the maximum value of the limited current which can flow through the human body is lower than or equal to about 300 μA. - The
boosting circuit 3 boosts a battery voltage VB and generates a voltage Vh (Vh>VB) under the control of aboost control circuit 30. This voltage Vh is preferably a voltage which allows the supply of a current of a magnitude that enables required effects to be obtained even if a resistance of a conduction path including a human body is not uniform. For example, when a current of about 100 μA needs to flow on the assumption that a maximum resistance (including a contact resistance or the like) of the path including the human body is about 150 kΩ, the voltage Vh is about 15 V (=150 kΩ×100 μA). - If the
handle portion 2 is held and the head portion 1 is inserted into the mouth in a state where the voltage Vh generated by theboosting circuit 3 is applied to theelectrodes electrode 23, the human body, theelectrode 13, theconduction plate 12, thedriving shaft 21 and an output resistor Ro2. However, the current is limited to, e.g., about 100 μA, by the aforementioned base current. Therefore, even when the resistance of the human body is low, the current greater than or equal to about 100 μA does not flow and, also, an surge current can be suppressed. - As depicted in
FIG. 1 , there is provided a transistor TRb which temporarily blocking a current by reducing a base potential of the pulsed current limit transistor TRa to zero at regular intervals so that the current can flow through the human body. -
FIG. 3 shows variations in hemoglobin oxygen saturation obtained when a pulsed current, a DC current, and no current are made to flow, wherein the saturation values are normalized with respect to the value obtained when no current is made to flow. The hemoglobin oxygen saturation indicates a combination ratio between oxygen and hemoglobin in red blood cells flowing through gum blood vessels. Since the oxygen sufficiency in tissues can be monitored by measuring the hemoglobin oxygen saturation, it serves as an indicator representing a state of inflammation of gums. When the state of gum health is poor due to the inflammation of gums or the like, oxygen supply cannot meet oxygen demand and, accordingly, oxygen becomes insufficient (low hemoglobin oxygen saturation). - As clearly can be seen from
FIG. 3 , the saturation is higher when the DC current is made to flow than when no current is made to flow. The saturation becomes further higher when a pulsed current of about 4545 Hz is made to flow, and highest when a pulse current of 9090 Hz is made to flow. However, the saturation is smaller when a pulsed current of 15000 Hz is made to flow than when the pulsed current of 9090 Hz is made to flow. -
FIG. 4 illustrates variations in BOP (Bleeding On Probing) when the pulsed current of 4545 Hz is made to flow for one month during tooth brushing and when no current is made to flow. As a result, it was found that the BOP was significantly improved when the pulsed current was made to flow. Therefore, it is clear that the gum care is effective when the pulse current of a frequency greater than or equal to about 4000 Hz is made to flow. - The
electrode 13 is a negative electrode to which a single pole pulsed current is supplied to prevent elution of an electrode metal. When an electrode inserted into a mouth serves as an anode, teeth or gums serve as a cathode. In that case, a metal of the anode is eluted, and the eluted metal is deposited on the teeth or the gums serving as the anode. However, the anode can be made of a material other than a metal or a material that is not eluted. If such a material is employed as theelectrode 13, theelectrode 13 can be positively biased or AC-biased. - Although the head portion 1 in the above embodiment moves by the
actuator 22, the actuator 22 (or another driving unit) can be omitted. - While the invention has been shown and described with respect to the embodiments, it will be understood by those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006275682A JP2008093039A (en) | 2006-10-06 | 2006-10-06 | Mouth cleaning device |
JP2006-275682 | 2006-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080083074A1 true US20080083074A1 (en) | 2008-04-10 |
Family
ID=38819336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/905,640 Abandoned US20080083074A1 (en) | 2006-10-06 | 2007-10-03 | Mouth cleaning device |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080083074A1 (en) |
EP (1) | EP1908435B1 (en) |
JP (1) | JP2008093039A (en) |
KR (1) | KR100924875B1 (en) |
CN (2) | CN101156976B (en) |
AT (1) | ATE502597T1 (en) |
DE (1) | DE602007013334D1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080120796A1 (en) * | 2006-11-28 | 2008-05-29 | Shy-Ming Shih | Toothbrush with an electric circuit |
US20090188057A1 (en) * | 2008-01-28 | 2009-07-30 | Panasonic Electric Works, Co., Ltd. | Toothbrush device |
US20100115718A1 (en) * | 2006-12-27 | 2010-05-13 | Panasonic Electric Works Co., Ltd. | Electric-electronic toothbrush |
US20110016648A1 (en) * | 2008-04-15 | 2011-01-27 | Panasonic Electric Works Co., Ltd. | Electronic toothbrush |
US20130071807A1 (en) * | 2011-09-20 | 2013-03-21 | Alexander Franz Doll | Iontophoretic oral care devices with automatic oral care implement detection and mode selection |
US20160022398A1 (en) * | 2014-07-22 | 2016-01-28 | Braun Gmbh | Fastenable device for oral cavity position detection |
US11812845B2 (en) | 2020-06-15 | 2023-11-14 | Church & Dwight Co., Inc. | Ionic toothbrush |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008093039A (en) * | 2006-10-06 | 2008-04-24 | Matsushita Electric Works Ltd | Mouth cleaning device |
JP5246089B2 (en) * | 2009-07-28 | 2013-07-24 | パナソニック株式会社 | Gum massage brush and gum massage device |
JP5482209B2 (en) * | 2010-01-08 | 2014-05-07 | オムロンヘルスケア株式会社 | electric toothbrush |
JP5437531B2 (en) | 2010-05-06 | 2014-03-12 | ブラウン ゲーエムベーハー | Oral cleaning device and head portion of oral cleaning device |
JP6369899B2 (en) * | 2014-08-18 | 2018-08-08 | 京都府公立大学法人 | Intraoral massage effect evaluation method |
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US4665921A (en) * | 1984-05-28 | 1987-05-19 | Teranishi Electric Works, Ltd. | High potential generating toothbrush |
US5133102A (en) * | 1989-01-31 | 1992-07-28 | Kabushiki Kaisha Sangi | Electronic toothbrush |
US5372501A (en) * | 1989-02-20 | 1994-12-13 | Solar Wide Industrial Ltd. | Dental aid |
US6836917B2 (en) * | 2001-05-07 | 2005-01-04 | The Procter & Gamble Company | Replaceable head electric toothbrush and connection structure therefor |
US20050091770A1 (en) * | 2003-11-04 | 2005-05-05 | Mourad Pierre D. | Toothbrush employing an acoustic waveguide |
US20060037197A1 (en) * | 2003-02-19 | 2006-02-23 | Hawes Christopher M | Hand held appliances |
US20070011836A1 (en) * | 2005-05-03 | 2007-01-18 | Second Act Partners, Inc. | Oral hygiene devices employing an acoustic waveguide |
US7307385B2 (en) * | 2004-03-30 | 2007-12-11 | Rohm Co., Ltd. | Boost controller capable of step-up ratio control |
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IT1221177B (en) | 1983-11-24 | 1990-06-21 | Enzo Maggiore | APPARATUS FOR THE PROTEXATION AND CARE OF THE CARIES THAT, THROUGH ELECTRIC IMPULSES, PREVENTS THE MULTIPLICATION OF THE ORIO CARIOGENIC MICRO-ORGANISMS, STOPS THE CARIES IN PROGRESS, ELIMINATING THE ETIOLOGICAL AGENTS ALSO AT THE LEVEL OF THE ROOT DRIED POTENZA |
JP2560162B2 (en) | 1991-09-17 | 1996-12-04 | 博 福場 | Ion toothbrush |
DE69934771T2 (en) * | 1998-05-29 | 2007-10-18 | Hukuba Dental K.K., Nagareyama | TOOTHBRUSH |
JP4855041B2 (en) | 2004-10-14 | 2012-01-18 | 株式会社ナリス化粧品 | Ultrasonic beauty and toothpaste equipment |
JP2008093039A (en) * | 2006-10-06 | 2008-04-24 | Matsushita Electric Works Ltd | Mouth cleaning device |
-
2006
- 2006-10-06 JP JP2006275682A patent/JP2008093039A/en active Pending
-
2007
- 2007-10-03 US US11/905,640 patent/US20080083074A1/en not_active Abandoned
- 2007-10-05 EP EP07019538A patent/EP1908435B1/en not_active Not-in-force
- 2007-10-05 DE DE602007013334T patent/DE602007013334D1/en active Active
- 2007-10-05 KR KR1020070100506A patent/KR100924875B1/en not_active IP Right Cessation
- 2007-10-05 AT AT07019538T patent/ATE502597T1/en not_active IP Right Cessation
- 2007-10-08 CN CN2007101622153A patent/CN101156976B/en active Active
- 2007-10-08 CN CNU2007201255836U patent/CN201171863Y/en not_active Expired - Fee Related
Patent Citations (9)
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US4665921A (en) * | 1984-05-28 | 1987-05-19 | Teranishi Electric Works, Ltd. | High potential generating toothbrush |
US5133102A (en) * | 1989-01-31 | 1992-07-28 | Kabushiki Kaisha Sangi | Electronic toothbrush |
US5372501A (en) * | 1989-02-20 | 1994-12-13 | Solar Wide Industrial Ltd. | Dental aid |
US6836917B2 (en) * | 2001-05-07 | 2005-01-04 | The Procter & Gamble Company | Replaceable head electric toothbrush and connection structure therefor |
US20060037197A1 (en) * | 2003-02-19 | 2006-02-23 | Hawes Christopher M | Hand held appliances |
US20050091770A1 (en) * | 2003-11-04 | 2005-05-05 | Mourad Pierre D. | Toothbrush employing an acoustic waveguide |
US20060191086A1 (en) * | 2003-11-04 | 2006-08-31 | Mourad Pierre D | Toothbrush employing acoustic waveguide |
US7307385B2 (en) * | 2004-03-30 | 2007-12-11 | Rohm Co., Ltd. | Boost controller capable of step-up ratio control |
US20070011836A1 (en) * | 2005-05-03 | 2007-01-18 | Second Act Partners, Inc. | Oral hygiene devices employing an acoustic waveguide |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7857620B2 (en) | 2006-11-28 | 2010-12-28 | Shy-Ming Shih | Toothbrush with an electric circuit |
US20110056032A1 (en) * | 2006-11-28 | 2011-03-10 | Shy-Ming Shih | Toothbrush With An Electric Circuit |
US20080120796A1 (en) * | 2006-11-28 | 2008-05-29 | Shy-Ming Shih | Toothbrush with an electric circuit |
US20100115718A1 (en) * | 2006-12-27 | 2010-05-13 | Panasonic Electric Works Co., Ltd. | Electric-electronic toothbrush |
US8239991B2 (en) * | 2006-12-27 | 2012-08-14 | Panasonic Corporation | Electric-electronic toothbrush |
US20090188057A1 (en) * | 2008-01-28 | 2009-07-30 | Panasonic Electric Works, Co., Ltd. | Toothbrush device |
US8056175B2 (en) * | 2008-01-28 | 2011-11-15 | Panasonic Electric Works, Co., Ltd. | Toothbrush device |
US8413285B2 (en) * | 2008-04-15 | 2013-04-09 | Panasonic Electric Works Co., Ltd. | Electronic toothbrush |
US20110016648A1 (en) * | 2008-04-15 | 2011-01-27 | Panasonic Electric Works Co., Ltd. | Electronic toothbrush |
KR20140046073A (en) * | 2011-09-20 | 2014-04-17 | 브라운 게엠베하 | Iontophoretic oral care devices and methods |
US20130071807A1 (en) * | 2011-09-20 | 2013-03-21 | Alexander Franz Doll | Iontophoretic oral care devices with automatic oral care implement detection and mode selection |
KR20140048326A (en) * | 2011-09-20 | 2014-04-23 | 브라운 게엠베하 | Oral care devices having automatic mode selection |
CN103813831A (en) * | 2011-09-20 | 2014-05-21 | 吉列公司 | Iontophoretic oral care devices with automatic oral care implement detection and mode selection |
US9009901B2 (en) * | 2011-09-20 | 2015-04-21 | Braun Gmbh | Oral care devices having automatic mode selection |
US9192762B2 (en) | 2011-09-20 | 2015-11-24 | Braun Gmbh | Therapeutic micro-current delivery devices and methods thereof |
KR101633564B1 (en) | 2011-09-20 | 2016-06-24 | 브라운 게엠베하 | Oral care devices having automatic mode selection |
KR101633565B1 (en) | 2011-09-20 | 2016-06-24 | 브라운 게엠베하 | Iontophoretic oral care devices and methods |
US20160022398A1 (en) * | 2014-07-22 | 2016-01-28 | Braun Gmbh | Fastenable device for oral cavity position detection |
US10299902B2 (en) * | 2014-07-22 | 2019-05-28 | The Procter & Gamble Company | Fastenable device for oral cavity position detection |
US11812845B2 (en) | 2020-06-15 | 2023-11-14 | Church & Dwight Co., Inc. | Ionic toothbrush |
Also Published As
Publication number | Publication date |
---|---|
EP1908435A1 (en) | 2008-04-09 |
CN101156976A (en) | 2008-04-09 |
KR100924875B1 (en) | 2009-11-02 |
CN201171863Y (en) | 2008-12-31 |
DE602007013334D1 (en) | 2011-05-05 |
KR20080031836A (en) | 2008-04-11 |
EP1908435B1 (en) | 2011-03-23 |
ATE502597T1 (en) | 2011-04-15 |
JP2008093039A (en) | 2008-04-24 |
CN101156976B (en) | 2013-02-06 |
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AS | Assignment |
Owner name: MATSUSHITA ELECTRIC WORKS, LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TANIGUCHI, SHINICHI;KISHIMOTO, SUEHISA;KUNITA, TOMOHIRO;AND OTHERS;REEL/FRAME:019969/0888;SIGNING DATES FROM 20070903 TO 20070904 |
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AS | Assignment |
Owner name: PANASONIC ELECTRIC WORKS CO., LTD., JAPAN Free format text: CHANGE OF NAME;ASSIGNOR:MATSUSHITA ELECTRIC WORKS, LTD.;REEL/FRAME:022206/0574 Effective date: 20081001 Owner name: PANASONIC ELECTRIC WORKS CO., LTD.,JAPAN Free format text: CHANGE OF NAME;ASSIGNOR:MATSUSHITA ELECTRIC WORKS, LTD.;REEL/FRAME:022206/0574 Effective date: 20081001 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |