EP0987996A1 - Procede et dispositif pour brosser les dents et la gencive - Google Patents

Procede et dispositif pour brosser les dents et la gencive

Info

Publication number
EP0987996A1
EP0987996A1 EP98965835A EP98965835A EP0987996A1 EP 0987996 A1 EP0987996 A1 EP 0987996A1 EP 98965835 A EP98965835 A EP 98965835A EP 98965835 A EP98965835 A EP 98965835A EP 0987996 A1 EP0987996 A1 EP 0987996A1
Authority
EP
European Patent Office
Prior art keywords
liquid
supply line
air supply
air
throttle
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.)
Withdrawn
Application number
EP98965835A
Other languages
German (de)
English (en)
Inventor
Norbert Gerstner
Michael Sauer
Norbert Schaefer
Michael Stolper
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Publication of EP0987996A1 publication Critical patent/EP0987996A1/fr
Withdrawn legal-status Critical Current

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
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/0061—Air and water supply systems; Valves specially adapted therefor
    • A61C1/0076—Sterilising operating fluids or fluid supply elements such as supply lines, filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/0061—Air and water supply systems; Valves specially adapted therefor
    • A61C1/0084—Supply units, e.g. reservoir arrangements, specially adapted pumps
    • A61C1/0092—Pumps specially adapted therefor

Definitions

  • the invention relates to a device for cleaning the teeth and gums with a liquid container, which is connected via a liquid supply line to an inlet of a pump driven by an electric motor, with which a liquid can be sucked from the liquid container to the inlet in the switched-on operating state, and with an air supply line which is connected to the liquid supply line and which is provided for adding air to the sucked-in liquid. Furthermore, the invention relates to a method for cleaning the teeth and gums, in which a liquid can be drawn in from a liquid container via a liquid supply line to an inlet of a pump which can be driven by an electric motor, and in which air is drawn in via an air supply line connected to the liquid supply line Liquid is added.
  • a so-called oral irrigator for tooth cleaning is described there, in which a pump draws water from a container via a line and pumps it to a mouthpiece.
  • An air hose is connected to the line and is provided with a valve which can be regulated by a user.
  • air is added to the water drawn in via the air hose by an appropriate setting of the valve.
  • the valve When the oral irrigator is switched off, the valve must be closed by the user so that no water escapes from the oral irrigator via the valve. This can lead to incorrect operation by the user.
  • the object of the invention is to provide a device and a method for cleaning the teeth and gums which enable simple and reliable operation for the user.
  • This object is achieved according to the invention in a device of the type mentioned at the outset in that at least part of the air supply line is arranged above a maximum possible level of the liquid. Furthermore, this task with one The method of the type mentioned at the outset is achieved according to the invention in that the air in the course of the air supply line is supplied at least partially above a maximum possible level of the liquid.
  • the liquid can thus escape from the air supply line neither when the device according to the invention is switched on nor when it is switched off. At most, the liquid in the air supply line can rise up to the maximum possible level mentioned, which, however, is arranged according to the invention below the mentioned part of the air supply line. This part represents in particular the highest point of the air supply line and, as mentioned, is arranged above the maximum possible level of the liquid within the device.
  • the saving of the valve also reduces the costs and the outlay for producing the device according to the invention.
  • a particularly approximately U-shaped bend of the air supply line is arranged above the maximum possible level of the liquid and / or the free end of the air supply line is arranged above the maximum possible level of the liquid.
  • the air supply line can be returned through the U-shaped bend back into an area of the device according to the invention in which there is sufficient space for accommodating further components to be connected to the air supply line.
  • the air supply line has a filter for cleaning the air.
  • the filter is preferably arranged at the free end of the air supply line. This ensures that all air sucked in by the air supply line is cleaned by the filter when it enters. Contamination of the device according to the invention is thus reliably avoided.
  • the course of the air supply line above the maximum possible level of the liquid, arranged in front of the filter ensures that no liquid can get to the filter and contaminate the filter.
  • the air supply line has a throttle, in particular for controlling the amount of air supplied via the air supply line.
  • the throttle is preferably arranged at the free end of the air supply line. This makes it possible to accommodate the filter and the throttle in a common housing. This represents a further simplification and thus a further possible cost reduction with regard to the structural design of the device according to the invention.
  • the course of the air supply line, arranged in front of the throttle, above the maximum possible level of the liquid ensures that no liquid to the Throttle reach and contaminate the throttle, in particular can close its through hole.
  • the liquid supply line has a constriction, in particular in the region of the connection of the air supply line to the liquid supply line.
  • this constriction it is achieved in a simple manner that air is sucked in via the air supply line to the liquid supply line and thus admixed with the liquid.
  • the constriction can be realized, for example, by a T-piece, which can be manufactured particularly cheaply.
  • the air supply line is laid as a hose independently of the liquid container within in particular a housing of the device. By using a hose, the air supply line can be laid particularly easily and flexibly within the device according to the invention. Furthermore, the hose represents a particularly inexpensive implementation of the air supply line.
  • FIG. 1 shows a schematic illustration of an exemplary embodiment of a device according to the invention for cleaning the teeth and gums
  • Figure 2 shows a schematic, partially sectioned perspective view of a
  • FIG. 3 shows a schematic sectional illustration of a T-piece for the device of FIG. 1.
  • FIG. 1 shows a device 1 with which a user can clean the teeth and gums by adding a liquid.
  • the device 1 is referred to as an oral irrigator and water is used as the liquid.
  • the device 1 has a liquid container 2 which is filled with a liquid 3.
  • the device 1 with the liquid container 2 is in this way on a horizontal surface 4 or the like turned off so that the vertical axis identified in FIG. 1 with the reference number 5 results-
  • the liquid container 2 is provided at its lowest point in the vertical direction with an outlet 6 to which a liquid supply line 7 is connected.
  • the liquid container 2 is connected to an inlet 8 of a pump 9 via this liquid supply line 7.
  • the pump 9 is driven by an electric motor 10 in its switched-on operating state. As a result, the liquid 3 is sucked out of the liquid container 2 to the inlet 8 of the pump 9. The suctioned liquid 3 is then pumped by the pump 9 via a further line 11 in the direction of the arrow 12 to a mouthpiece or the like, with which the user can spray the liquid 3 onto the teeth and the gums.
  • An air supply line 13 is connected to the liquid supply line 7 between the outlet 6 of the liquid container 2 and the inlet 8 of the pump 9.
  • the air supply line 13 can, for example, be laid as a hose independently of the liquid container 2 within a housing of the device 1.
  • the liquid 3 can assume a maximum level 14 in the liquid container 2. This maximum possible level 14 is obtained when the liquid container 2 is essentially completely filled with the liquid 3. This state is shown in FIG. 1.
  • the air supply line 13 is arranged within the device 1 such that at least a part 15 of the air supply line 13 runs above the maximum possible level 14 of the liquid 3. This is shown in FIG. 1 in that the part 15 of the air supply line 13 is arranged at a distance 16 above the maximum possible level 14 of the liquid 3.
  • a filter 18 with a throttle 19 is arranged at the free end 17 of the air supply line 13.
  • 1 shows two possible alternatives for the arrangement of the filter 18 and the throttle 19. Expediently, only one of the two alternatives will be implemented in the device 1.
  • the filter 18 with the throttle 19 is arranged below the maximum possible level 14 of the liquid 3.
  • the part 15 of the air supply line 13 represents an approximately U-shaped bend 20 and the free end 17 of the air supply line 13 is arranged below the maximum possible level 14 of the liquid 3.
  • the filter 18 with the throttle 19 is arranged above the maximum possible level 14 of the liquid 3.
  • the free end 17 of the air supply line 13 is also arranged above the maximum possible level 14 of the liquid 3.
  • FIG. 2 shows an embodiment of the filter 18 with the throttle 19.
  • the filter 18 has a membrane 21 made of PTFE.
  • the membrane 21 can also consist of paper, glass fibers or the like.
  • the material of the filter 18 is chosen such that, as far as possible, it does not have to be changed during the life of the device 1.
  • the throttle 19 has a ruby 22 or the like, which is provided with a through hole 23.
  • the diameter of the through hole 23 is small, for example about 100 ⁇ m.
  • the throttle 19 is arranged between the filter 18 and the air supply line 13 and thus in the direction of the supplied air after the filter 18.
  • the filter 18 and the throttle 19 are accommodated in a common housing 24. However, it is also possible for the filter 18 and the throttle 19 to be formed independently of one another and to be arranged at different points in the air supply line 13.
  • a constriction 25 is provided in the liquid supply line 7, in particular in the area of the connection of the air supply line 13.
  • FIG. 1 An embodiment of the constriction 25 is shown in FIG.
  • the inlet 8 of the pump 9, part of the liquid supply line 7 and part of the air supply line 13 are integrated in a housing 26 of the pump 9 and form a so-called T-piece 27.
  • the liquid supply line 7 is connected to the Provide constriction 25.
  • the pump 9 sucks liquid 3 out of the liquid container 2 via the liquid supply line 7.
  • a negative pressure is created in the air supply line 13.
  • air is sucked in via the filter 18, the throttle 19 and the part 15 of the air supply line 13 to the liquid supply line 7.
  • the sucked-in air mixes with the sucked-in liquid 3.
  • the constriction 25 is provided in particular to generate the negative pressure in the air supply line 13 required for the intake of air.
  • the throttle 19 is provided in particular for metering and controlling the amount of air supplied by means of the through hole 23.
  • the constriction 25 and the throttle 19 are coordinated with one another in such a way that the constriction 25 without the throttle 19 would produce a volume flow that is greater than the volume flow that is possible through the throttle 19.
  • the filter 18 arranged in front of the throttle 19 in the air supply direction serves to clean the intake air.
  • the filter 18 is designed in such a way that it has in particular no throttling influence on the intake of air.
  • the air supply line 13 can be filled with the liquid up to the level 14, so that no liquid 3 can reach the free end 17 of the air supply line 13.
  • the liquid container 2 can be designed to be removable. If the liquid container 2 is removed by the user, then the liquid 3 which may be contained in the air supply line 13 is emptied to the liquid supply line 7 and the inlet 8 of the pump 9 and is received there and possibly also within the pump 9.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un dispositif (1) pour brosser les dents et la gencive, muni d'un récipient pour liquide (2), relié par l'intermédiaire d'une conduite d'alimentation en liquide (7) à un orifice d'entrée (8) d'une pompe (9) pouvant être entraînée par un moteur électrique (10). Lorsque le dispositif est enclenché, un liquide (3) est refoulé au moyen de la pompe hors du récipient pour liquide (2), jusqu'à l'orifice d'entrée (8). En outre, il est prévu une conduite d'amenée d'air (13) raccordée à la conduite d'alimentation en liquide (7), qui sert à mélanger l'air au liquide (3) refoulé. Selon l'invention, au moins une partie (15) de la conduite d'alimentation en air (13) est disposée au-dessus d'un niveau (14) maximal possible du liquide (3), ce qui empêche que du liquide (3) ne s'échappe du dispositif (1).
EP98965835A 1998-01-16 1998-12-14 Procede et dispositif pour brosser les dents et la gencive Withdrawn EP0987996A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19801362 1998-01-16
DE19801362A DE19801362C2 (de) 1998-01-16 1998-01-16 Vorrichtung zum Reinigen der Zähne und des Zahnfleischs
PCT/EP1998/008197 WO1999035996A1 (fr) 1998-01-16 1998-12-14 Procede et dispositif pour brosser les dents et la gencive

Publications (1)

Publication Number Publication Date
EP0987996A1 true EP0987996A1 (fr) 2000-03-29

Family

ID=7854736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98965835A Withdrawn EP0987996A1 (fr) 1998-01-16 1998-12-14 Procede et dispositif pour brosser les dents et la gencive

Country Status (6)

Country Link
US (1) US6299443B1 (fr)
EP (1) EP0987996A1 (fr)
JP (1) JP2002503137A (fr)
AU (1) AU739790B2 (fr)
DE (1) DE19801362C2 (fr)
WO (1) WO1999035996A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19959188A1 (de) 1999-12-08 2001-06-21 Braun Gmbh Verfahren und Vorrichtung zur Reinigung von Reinigungsbereichen des Mundinnenraums
US20060078844A1 (en) * 2004-10-07 2006-04-13 Goldman Paul D Oral care systems, oral care devices and methods of use
US8444416B2 (en) 2005-04-26 2013-05-21 Braun Gmbh Valves for personal care devices
DE102007028184A1 (de) 2007-06-20 2008-12-24 Braun Gmbh Bürstenkopf für eine Zahnbürste
US9249789B2 (en) 2010-10-08 2016-02-02 Ravindra Kashyap Pipe pump system
EP2946748B1 (fr) 2014-05-19 2017-09-13 Panasonic Intellectual Property Management Co., Ltd. Dispositif d'hygiène buccale

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645288A (en) * 1970-03-12 1972-02-29 Thomas C Dawkins Supply unit for oral cleaner
GB1310303A (en) * 1970-06-01 1973-03-21 Cosmo Denshi Kk Mouth cleaners
US4193197A (en) * 1976-07-06 1980-03-18 Aquasonic Products Corp. Fluid supply unit and systems for dental and medical instruments
DE2735427A1 (de) * 1977-08-05 1979-02-15 Otto Huebner Geraet fuer die pflege und reinigung von zaehnen und zahnfleisch
US4201200A (en) 1977-08-05 1980-05-06 Huebner Otto Appliance for the care and cleaning of teeth and gums
DE3545868C2 (de) * 1985-12-23 1994-03-10 Moser Gmbh Kuno Munddusche
US5577910A (en) * 1994-05-13 1996-11-26 Holland; Robert S. Vacuum pump seal-water recycling and waste disposal system for dental operatories

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9935996A1 *

Also Published As

Publication number Publication date
JP2002503137A (ja) 2002-01-29
WO1999035996A1 (fr) 1999-07-22
AU739790B2 (en) 2001-10-18
DE19801362C2 (de) 2001-07-05
AU2162099A (en) 1999-08-02
DE19801362A1 (de) 1999-07-22
US6299443B1 (en) 2001-10-09

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