WO2006014080A1 - Method and apparatus for supplying water in dental water tank - Google Patents

Method and apparatus for supplying water in dental water tank Download PDF

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Publication number
WO2006014080A1
WO2006014080A1 PCT/KR2005/002537 KR2005002537W WO2006014080A1 WO 2006014080 A1 WO2006014080 A1 WO 2006014080A1 KR 2005002537 W KR2005002537 W KR 2005002537W WO 2006014080 A1 WO2006014080 A1 WO 2006014080A1
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WO
WIPO (PCT)
Prior art keywords
water
silver ion
dental
water tank
tank
Prior art date
Application number
PCT/KR2005/002537
Other languages
French (fr)
Inventor
Cha Hyoung Koo
Original Assignee
Cha Hyoung Koo
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 Cha Hyoung Koo filed Critical Cha Hyoung Koo
Publication of WO2006014080A1 publication Critical patent/WO2006014080A1/en

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Classifications

    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone

Definitions

  • the present invention relates to an apparatus for supplying dental water, and more particularly to a method and apparatus for supplying dental water that is adaptive for increasing antibiotic power and sterilizing power by supplying silver ions to dental water.
  • the water supplied to a dental medical equipment cools down the heat generated at a handpiece of a dental unit chair, and is used when removing the dust and remains which are generated when grinding or when rinsing the mouth. Because of this, sanitation and cleanliness is important, and especially, the water gets directly in contact with the injured region of mouth, thus the importance of antibiotic effect and sterilizing effect is emphasized. Further, because the handpiece, a sealer and so on get in contact with the contaminated teeth or affected part, a variety of bacteria existing in the contaminated part forms a biofilm in the hose and water tank which is connected to the medical equipment, thus there is a problem in that the bacteria can cause secondary infection or cross infection to other patient as well as the bacteria can be propagated. And it is required to solve the problem.
  • the related art dental water supply apparatus often needs the cleaning and disinfection of the inner part of the tank which preserves water so that cost and effort is required and sanitation problem is brought about if care is neglected.
  • silver Ag has an effect of sterilizing various bacteria, so that the silver is used as accessories or health products.
  • silver ion Ag+ has the strongest antibiotic effect among antibiotic methods by metal ion, does not irritate skin, has a continuous and stable residual effect, and completely sterilizes even part which is not sterilized by ozone.
  • the most effective method for using silver to be useful to the human body is proved to be most desirably that silver is used by being made into colloidal form in silver ion Ag+ state.
  • the silver ion Ag+ dissolved in distilled water is called colloidal silver so that it is widely used as a substitute health treatment.
  • silver ion water is reported to sterilize 650 kinds of bacteria and, above all, has a characteristic that there is no resistance differently from general antibiotic materials.
  • the silver ion water is made to appropriately generate a very small amount of mineral with distilled water, thus it is very safe for children to use and has no adverse effect of the resistance of the antibiotic material bought at a drugstore. Disclosure of Invention Technical Problem
  • a method of supplying dental water includes the steps of: supplying ozone to water; supplying silver ion to the water; and supplying the water having the ozone and silver ion to a dental medical equipment.
  • a method of supplying dental water according to another aspect of the present invention includes the steps of supplying silver ion to water; and supplying the water having the silver ion to a dental medical equipment.
  • a dental water supply apparatus includes a water tank which stores water that is purified and sterilized and discharges the water with a fixed pressure; a water discharge pipe which discharges the purified and sterilized water from the water tank; and a silver ion supply device which converts the water, which supplied from a dental medical equipment through the water discharge pipe, into a silver ion water.
  • the silver ion supply device includes a pair of silver electrode; a power source part to supply power to the silver electrode; and a controller for making the power source part on/off in accordance with the water level of the water tank.
  • the silver ion supply device is installed in the inside of the water tank.
  • the silver ion supply device includes a silver ion water tank connected to the water discharge pipe.
  • a dental water supply apparatus includes a water purifying part to purify and sterilize an original water; a water tank which stores the purified and sterilized water and discharges the stored water; and a silver ion supply device which supplies silver ion to the water within the water tank.
  • the silver ion supply device includes a plurality of porous balls coated with silver.
  • the silver ion supply device further includes a net installed within the water tank to limit the movement of the porous balls.
  • the dental water supply apparatus further includes an air gap device having an air gap between a water inlet opening through which the original water is supplied and a tank at which the original water is stored.
  • the dental water supply apparatus further includes a pressure control device which is installed at a water outlet pipe of the water tank and has the water from the water tank come out only when it is above a fixed pressure, and wherein a compressed air is not supplied continuously to the water tank.
  • a dental water supply apparatus includes a water purifying part to purify and sterilize an original water; a water tank which stores the purified and sterilized water and discharges the stored water; a water supply pipe installed between the water purifying part and the water tank to supply the purified and sterilized water to the water tank; and a silver ion supply device installed in the water supply pipe to supply silver ion to the purified and sterilized water.
  • the silver ion supply device includes a plurality of porous balls coated with silver.
  • the dental water supply apparatus further includes an air gap device having an air gap between a water inlet opening through which the original water is supplied and a tank at which the original water is stored.
  • the dental water supply apparatus further includes a pressure control device which is installed at a water outlet pipe of the water tank and has the water from the water tank come out only when it is above a fixed pressure, and wherein a compressed air is not supplied continuously to the water tank.
  • the dental water supply apparatus supplies the original water from the water supply source to the water tank through the water purifying part and supplies the silver ion water with strong sterilizing power to the dental medical equipment by adding the silver ion to the ozone water which is generated by sterilizing the water stored at the water tank.
  • the dental water supply apparatus uses the silver ion water having strong antibiotic power and sterilizing power as the dental water, thus stronger sterilizing effect can be obtained without adverse effect and it is possible to prevent that the bacteria transferred from the patient whose mouth is contaminated is secondary-infected to other people through the medical appliance.
  • FlG. 1 is a diagram representing a dental water supply apparatus according to an embodiment of the present invention.
  • FlG. 2 is a diagram representing a compressed air supplier for supplying a compressed air to the dental water supply apparatus shown in FlG. 1 ;
  • FlG. 3 is a diagram representing a silver ion supply device according to a first embodiment of the present invention.
  • FlG. 4 is a diagram representing a silver ion supply device according to a second embodiment of the present invention.
  • FlG. 5 is a diagram representing a silver ion supply device according to a third embodiment of the present invention.
  • FlG. 6 is a diagram representing a silver ion supply device according to a fourth embodiment of the present invention.
  • FlG. 7 is a diagram representing an air gap device for supplying an original water to a water purifying part.
  • FlG. 8 is a diagram representing a silver ion supply device according to a fifth embodiment of the present invention.
  • FlG. 9 is a diagram representing a silver ion supply device according to a sixth embodiment of the present invention.
  • FlG. 10 is a diagram representing a water tank according to another embodiment of the present invention. Best Mode for Carrying Out the Invention
  • a dental water supply apparatus includes a water purifying part 2 for purifying original water; a water tank 10 connected to dental unit chairs 101 to 1OK through a water discharge pipe 12 and a water return pipe 19; a pump 3 A and an auxiliary water tank 51 connected to the water tank 10 through an auxiliary water supply pipe 38; a ball top 34 floating by buoyancy in the water stored within the water tank 10; a first water supply pipe 32 of which the water supply opening is intercepted by the ball top 34 when the water stored within the water tank 10 reaches a fixed water level; a second water supply pipe 33 installed between the water purifying part 2 and a drinking water cooler/heater 17; a waste water pipe 31 installed between the water purifying part 2 and a waste water treatment device; an ozone lamp 13 installed within the water tank 10; a compressed air supplier 40 for supplying a purified compressed air into the water tank 10; solenoid valves IA, IB, 1C, IE installed in pipes 31,
  • the original water is a tap water or an underground water supplied from the water supply source, or the water which is supplied through an air gap device 170, as in FlG. 7, and the original water is supplied to the water purifying part 2 through an original water pipe 37 and a first solenoid valve IA.
  • the water tank 10 is made of stainless steel SUS and so on and its interior is coated with Teflon or resin of which the corrosion resistance and chemical resistance are excellent.
  • the water flowing in from the pumps 3A, 3B is controlled by a water level control means which includes the ball top 34 and a controller 64, thus the water stored inside the water tank 10 is always kept at a fixed water level.
  • the water tank 10 has water supplied with a fixed pressure by the pumps 3 A, 3B and the first water supply pipe 32 which penetrates into the inside of the water tank 10.
  • the water is supplied to the water tank 10 without opening and closing the cap, thus there is generated no secondary infection of the water tank 10 that the water tank 10 is contaminated by a contaminated air when supplying water from the related art water tank which supplies water by opening the cap.
  • the auxiliary water tank 51 stores water for handling when water supply is cut off, and is made of stainless steel SUS.
  • the solenoid valve IE connected to the auxiliary water tank 51 can be electrically controlled by the controller 64, but it can be replaced with a manual valve.
  • the control part 60 includes the controller 64, a memory 61 connected to the controller 64, a display device 62 and an input/operation panel 63.
  • the water purifying part 2 plays the role of removing various impurities, rust remnants, a floating material or a chemical contaminated material, heavy metal, ion, bacteria and so on which are contained in the original water supplied from the original water pipe 37.
  • the water purifying part 2 includes a pre-sediment filter 21 installed between the first solenoid valve IA and the pump 3A; a pre-carbon filter 22 installed in series between the auxiliary pump 3B and the second three-way valve 5B; a post carbon filter 23 and a post sediment filter 24; a reverse osmotic filter 7 installed between the second three-way valve 5B and the water supply pipes 32, 33; and a TOR filter (taste odor removal filter) 8 installed between the reverse osmotic filter 7 and the drinking water cooler/heater 17.
  • TOR filter taste odor removal filter
  • the sediment filter 21, 24 is composed of nonwoven fabric or filter paper and removes the various impurities, the rust remnants and the floating material which are contained in the original water.
  • the carbon filter 22, 23 removes the chemical con ⁇ taminated material.
  • the reverse osmotic filter 7 only lets water H O pass through and removes the heavy metal, the bacteria, the ion material by a membrane separation method by use of a membrane which intercepts the heavy metal, the bacteria, the ion material which are bigger than the molecule of water.
  • the TOR filter removes the unpleasant taste and odor in the water to supply the purified water, from which the taste and odor is removed, to the driving water cooler/heater.
  • the pump 3A is driven by the power supplied from an adaptor 4A under the control of the controller 64, thus the water purified by the water purifying part 2 is supplied to the water tank 10 with a fixed pressure.
  • the original water is smoothly supplied to the water purifying part 2 by the pump 3A, and the water purified by the water purifying part 2 is smoothly filled into the water tank 10. For example, if the pressure of the original water is low, the original water is pressed to above the fixed pressure by the pump 3A, thus a water purifying process is smoothly performed by the water purifying part 2.
  • the pump 3 A supplies the water, which is purified at the water tank 10 with the fixed pressure, until the pump 3A is stopped by the controller 64.
  • the auxiliary pump 3B is driven under the control of the controller 64 when the pump 3A is out of order and supplies the original water to the water purifying part 2 and the water tank 10 with a fixed pressure. If the pump 3 A is out of order while water is not cut off, the level of the water stored within the water tank 10 becomes abnormally low. In this way, when the water is not cut off and the level of water stored in the water tank 10 is sensed below the lower limit level of the water, which is stored at the water tank , for longer than the fixed time, the controller 64 drives the auxiliary pump 3B by judging that the pump 3A is out of order.
  • the controller 64 controls the three-way valve 5B to fixedly keep the water level within the water tank 10 and controls the solenoid valve IE so that the water stored in the auxiliary water tank 51 can be supplied to the auxiliary water tank 50 when water is cut off.
  • the water stored at the auxiliary water tank 50 upon the water cut-off is supplied directly to the water tank 10 through the auxiliary water supply pipe 38 and the solenoid valve IE. Further, it controls a power source part 14 which applies power to a silver ion supply device 80.
  • the input/operation panel 63 has an on/off key of a silver power source, a pressure gauge, a keyboard and so on so that the supervisor is allowed to control the dental water supply apparatus and to watch and control the pressure of the water. Further, the supervisor can input and renew information such as consultation hour through the input/operation panel 63. [46]
  • the display device 62 displays the information inputted from the controller 64 to allow the supervisor to be able to know the operation state of the dental water supply apparatus.
  • the waste water treatment device 9 plays the role of out-letting the waste water supplied from the reverse osmotic filter 7 through a very small hole.
  • the third solenoid valve 1C installed at both sides of the waste water treatment device 9 is opened to bypasses the waste water at a rapid speed without passing through the waste water treatment device 9 under the control of the controller 64 so as for the waste water treatment device 9 to remove the residue which is stuck to the wall surface of the reverse osmotic filter 7 being an ultra-minute membrane.
  • FlG. 2 is a diagram representing a pressed air supplier shown in FIG. 1.
  • a compressed air supplier 40 includes a compressor 25, an air purifier 26 and a pressure controller 27 which are connected in series.
  • the compressor includes a compressor 25, an air purifier 26 and a pressure controller 27 which are connected in series.
  • the air purifier 26 is composed of an air purifying filter made of a minute membrane such as a nonwoven fabric and a filter device to remove various impurities, minute dust and so on which are contained in the compressed air that is compressed by the compressor 25.
  • the pressure controller 27 is a regulator and controls the pressure of the compressed air which is purified by the air purifier 26. The air pressure of the compressed air which is purified by the air purifier
  • the air pressure of the compressed air which is controlled by the pressure controller 27 keeps at 1.8-2.5 kgf/cm 2 .
  • the water stored within the water tank 10 by the compressed air that is compressed to be a fixed air pressure is made to have a fixed pressure.
  • the compressed air generated from the compressed air supplier 40 flows into the water tank 10, thus the water stored within the water tank 10 by the compressed air is supplied to the dental unit chairs 101 to 1OK with a fixed pressure.
  • the water supplied to the dental unit chairs 101 to 1OK is supplied to the last end medical equipment 71 to 7K such as a handpiece, a mouth cleaning stand, a sealer and so on.
  • FlG. 3 is a diagram representing a silver ion supply device according to a first embodiment of the present invention.
  • the water tank includes the ball top 34, an ozone lamp 13, a temperature sensor 15, a heater 16, a water level sensing detector 18A, 18B, 18C, and a silver ion supply device 80.
  • the ball top 34 has air injected into the inside thereof so as for buoyancy to be generated, and floats on the water surface within the water tank 10.
  • the ball top 34 is connected to one side of a lever (not shown) of which one side is connected by a hinge, and moves up and down along the water level within the water tank 10 to push up and down the stopper of the water supply opening.
  • the water supply opening stopper opens and closes the water supply opening in correspondence with the up-and-down movement of the ball top 34.
  • the water level sensing detectors 18 A, 18B, 18C are respectively located in corre ⁇ spondence with an upper limit water level, a middle water level and a lower limit water level within the water tank 10 and generates a water level sensing signal Sh.
  • the controller 64 judges that it is difficult to supply water to the water tank 10 because the pump 3A is out of order or the reverse osmotic filter 7 is blocked when the lower limit water level sensing signal among the water level sensing signals Sh is inputted for longer than a fixed time, so that the controller 64 makes the auxiliary pump 3B run and the three-way valve 5B operated, thus the water tank 10 is made to be filled quickly through a UF membrane filter 70 of which the pore is big and which is between the post sediment filter.
  • the controller 64 controls an original water supply switch valve to be closed. If there is a problem in an electrical control function, the water supply opening of the first water supply pipe 32 is blocked to prevent the overflow of the water within the water tank 10 in the ball top 34. In this way, if the water supply opening of the first water supply pipe 32 is blocked by the ball top 34, the pressure within the first water supply pipe 32 reaches above a set pressure to stop the pumps 3A, 3B, thus no more water flows into the water tank 10.
  • the temperature sensor 15 senses the temperature of the water stored within the water tank 10 and supplies to the controller 64 a temperature sensing signal St which indicates the temperature of the water.
  • the controller 64 drives the heater 16 for preventing the water tank 10 from being frozen to burst if the temperature of the water stored at the water tank 10 is judged to be kept for a fixed time at a designated temperature, e.g., below 5 ?. Then, the heater 16 increases the temperature within the water tank 10 under the control of the controller 64, thereby preventing it from being frozen to burst.
  • the ozone lamp 13 is discharged by the power from the power source part 14.
  • An ozone generating device can be used instead of the ozone lamp 13, wherein the ozone generating device electrolyzes the water and converts oxygen into the ozone water by use of the discharge.
  • the ozone generating device is more effective if the dissolved oxygen of the water stored within the water tank 10 is low.
  • the silver ion supply device 80 supplies the silver ion water so that the water within the water tank 10 keeps a fixed silver ion concentration.
  • the water which is disinfected and has a sterilizing power by the ozone lamp 15 comes to have the stronger sterilizing power and antibiotic power as the silver ion is added thereto.
  • the silver ion supply device 80 includes a pair of silver electrodes 83; a silver ion water concentration sensor 81 for sensing the silver ion concentration within the water tank 15; a DC power source part to supply power to the silver electrode pair 83; and the controller 64 which controls the operation of the silver ion supply device while pe ⁇ riodically changing the polarity of the power applied to the silver electrode pair 83 by controlling the power source part. If the power is applied to the silver electrode pair 83 from the power source part, the silver ion is dissolved into the water by the electrolysis, thus the dental water becomes the silver ion water.
  • the controller 64 controls the power source part in accordance with the silver ion concentration within the water tank sensed by the silver ion water concentration sensor 81.
  • the silver ion water concentration having the sterilizing power is generally above 0.01 ppm, but because the water is changed to the ozone water by the ozone lamp, the sterilizing power can be improved only with a small amount of silver ion.
  • the water within the water tank 10 is a purified water or a distilled water for preventing silver chloride AgCl from being generated, wherein the silver chloride AgCl is harmful to human body and is generated by silver being in action with the chlorine Cl component which is contained in the normal water.
  • the silver ion water is supplied to the dental unit chair 101 to 1OK through the water discharge pipe 12 and to a plurality of water tanks 10 through the water return pipe 12, as shown in FIG. 3, to be continuously in circulation between the water tank 10 and the unit chair, thereby keeping the sterilizing power within the pipe.
  • the water within the water discharge pipe 12 installed between the water tank 10 and the dental unit chair 101 to 1OK is tied up, thus even the water is sterilized, the sterilizing power becomes lost as time elapses.
  • the pipe or hose installed between the water tank 10 and the dental unit chair 101 to 1OK is infected and the infection causes the secondary infection to the mouth of patient or the water tank 10.
  • the water stored within the water tank 10 is converted into the ozone water, becomes to have a strong sterilizing power because the silver ion is included, and the ozone water containing the silver ion is circulated not to lose the sterilizing power, thus the pipes 12, 19 installed between the water tank 10 and the dental unit chair 101 to 1OK are always sterilized.
  • the dental water supply apparatus includes a drug tank 52 for supplying a drug with strong sterilizing power and disinfecting power to a flowing water through the water discharge pipe 12; a drug supply pipe 53 and a solenoid valve 55; a pump 3C for circulating water; and a three-way valve 54 installed in the water return pipe 19.
  • the dental unit chairs 101 to 1OK to the pipe or hose in the last end medical equipment 71 to 7K such as the handpiece, the mouth cleaning stand, the sealer and so on are sterilized and disinfected with the water having the sterilizing power and the drug mixed in the water.
  • the three-way valve 54 connected to the water return pipe 19 connects a sewage treatment part for treating the waste water and the water return pipe 19 under the control of the controller 64 for a fixed time. But, in the normal driving state, but not in the whole sterilization mode, the three-way valve 54 intercepts the connection between the water return pipe 19 and the water tank 10 to open the water supply path between the water return pipe 19 and the water tank 10.
  • the solenoid valve 55 connected to the drug supply pipe 53 opens the drug supply path between the drug tank 52 and the water discharge pipe 12 in the whole ster ⁇ ilization mode, but the solenoid valve 55 intercepts the drug supply path between the drug tank 52 and the water discharge pipe 12 to open the water supply path between the water supply pipe 12 and the water tank 10 in the normal driving state, but not in the whole sterilization mode.
  • the drug stored within the drug tank 52 is in a liquid state or has a form of powder, and is supplied to the water discharge pipe 12 in a piston method.
  • the drug includes at least any one of sodium hypochlorite NaOCl, chloramines, elemental chlorine, chlorhexidine, H O and iodine composition.
  • the pump 3C is connected to the water discharge pipe 12 or the water return pipe
  • the solenoid valve 54 connected to the water return pipe 19 and the solenoid valve 55 connected to the drug supply pipe 53 can be replaced with a manual valve.
  • the supervisor closes the manual valve connected to the water return pipe 19 and opens the manual valve connected to the drug supply pipe 53 if it is judged that the overall disinfection is required.
  • FIG. 4 is a diagram representing a silver ion supply device according to the second embodiment.
  • the silver ion supply device includes a small silver ion water tank 91 connected to the water discharge pipe 12 which is connected to the water tank 10 and the last end medical equipment and a silver ion supply device 90 within the silver ion water tank 91.
  • the water firstly stored at the water tank 10 is secondly stored at the silver ion water tank 91 through a water outlet pipe 11.
  • the water stored at the silver ion water tank 91 becomes the silver ion water by the silver ion supply device 90.
  • the silver ion water stored at the silver ion water tank 91 is not the water which is to be supplied finally, but highly-concentrated silver ion water.
  • the controller 64 controls the valve 92 to spray the highly- concentrated silver ion water to the water which runs through the water discharge pipe 12, thereby making the finally-discharged water a properly-concentrated silver ion water.
  • the water is supplied to the silver ion water tank 91, thereby having the highly-concentrated silver ion water stored up. Some extent of time is required for making it the properly- concentrated silver ion water, but if the small silver ion water tank is provided, it is possible to reduce the time of making the silver ion water.
  • FIG. 5 is a diagram representing the silver ion supply device according to a third embodiment of the present invention.
  • the silver ion supply device includes more than a few small silver ion water tanks 111, 112, , 11m (but, m is a natural number) which are connected to the water discharge pipe 12 connecting the water tank 10 and the last end medical equipment and have the water level sensing detector therewithin.
  • Each of the silver ion water tanks 111, 112, , 11m has a silver ion supply device 10OA, 10OB, therewithin.
  • the contents of the ball top 34, the temperature sensor 15, the ozone lamp 13, the drug tank 52 is the same as in the foregoing first and second em ⁇ bodiments, thus the description will be omitted.
  • the water firstly stored at the water tank 10 is secondly stored at the silver ion water tanks 101 through the water outlet pipe 11.
  • the silver ion supply device 100 supplies the silver ion water to the silver ion water tanks 111, 112, , 1 Im for the water to have the proper silver ion concentration.
  • the water of the first silver ion water tank 111 is used for discharging the water to the last end medical equipment, and for this, first and second discharge pipe valve 103B is made to open and all other valves are closed, thus the water within the first silver ion water tank 111 is discharged from the last end medical equipment through the water discharge pipe by the pressure difference within the water tank. If the water of the first silver ion water tank 111 is used up, the water of the second silver ion water tank 112 is used and the first silver ion water tank 111 receives the water from the water tank 10 to make the silver ion water.
  • a timing controller 64 receives a signal by the water level sensing detector (not shown) within each silver ion water tank and gets at the remaining amount of the silver ion water of the silver ion water tanks, thereby controlling the valves.
  • the repetition of such operations can be performed manually not by automatic control. For example, if only the water level of each silver ion water tank is informed to the display device by the signal, the opening and closing of the valve is performed manually. Further, in order to make the controller simple, it is possible to make the water level part of the silver ion water tank is made to be known through the naked eye.
  • the silver ion water is kept at the proper concentration within each silver ion water tank, and if the water of any one of the silver ion water tank is used and the level of the water is lowered, the water of another silver ion water tank is used while receiving the water from the water tank and making it at a proper concentration again, thus the silver ion water of the proper concentration can be always used.
  • FIG. 6 is a diagram representing a silver ion supply device according to a fourth embodiment of the present invention.
  • the silver ion supply device includes a silver ion water tank 121 installed in the water discharge pipe 12; and a flux sensing detector 125 at the beginning of the discharge pipe through which water is discharged from the silver ion water tank 121.
  • An ion water fabricating device 110 installed within the silver ion water tank 121 supplies the silver ion to the ozone water under the control of the controller 64.
  • the flux sensing detector 125 senses the water flowing in the water discharge pipe to send a signal to the controller when the water is used at the last end medical equipment.
  • the controller 64 in response to the signal from the flux sensing detector 125, drives the silver ion water fabricating device 110 to increase the silver ion con ⁇ centration of the ozone water if the quantity of flow within the water discharge pipe 12 increases, i.e., the dental water is in use, but the controller 64 stops the drive of the silver ion water fabricating device 110 if the quantity of the flow within the water discharge pipe 12 decreases, i.e., the dental water is not in use.
  • the structure of the overall device can be simplified by having the tank 121 which includes the silver ion water fabricating device 110 in the water discharge pipe 12. Further, the water flowing into the silver ion water tank 121 is also the water which already has the sterilizing power by the drug and ozone, thus the sterilizing power and the antibiotic power can be increased even with a small amount of silver ion addition right before being discharged to the last end.
  • FIG. 7 is a diagram briefly representing the air gap device 170.
  • the air gap device 170 includes the tank 174 where a water inlet pipe 171, a water outlet pipe 172 and an overflow discharge opening 173.
  • the underground water or the tap water which is supplied from the water supply source is supplied to the water inlet pipe 171.
  • the water inlet opening of the water inlet pipe 171 is located in the upper end within the tank 174.
  • the water outlet pipe 172 is connected to the water outlet opening which is formed in the bottom surface of the tank 172, and supplies the water stored at the tank 174 to the water purifying part 2.
  • the overflow discharge opening 173 is formed in the side wall of the tank 174 between the water inlet opening of the water inlet pipe 171 and the water outlet opening formed at the bottom surface of the tank 174. Accordingly, an air gap of a designated height exists between the water inlet opening of the water inlet pipe 171 and the overflow discharge opening 173. The air gap intercepts the infection path between the water stored within the tank 174 and the water inlet pipe, and the height of the air gap should be above 25mm.
  • the overflow discharge opening 173 plays the role of fixedly keeping the level of the water stored within the tank 173 to keep the air gap height.
  • the opening and closing device using the solenoid valve, the water level sensor, the hinge, the lever and the ball top might be installed within the tank 174.
  • the opening and closing device plays the role of opening and closing the water inlet opening of the water inlet pipe 171 by use of the ball top which rises in accordance with the water level within the tank 174 and the hinge and lever which rotationally move in conjunction with the ball top.
  • FIG. 8 is a diagram representing a silver ion supply device according to a fifth embodiment of the present invention.
  • a net 81 holding a plurality of porous balls 180 is installed within the water tank 10 according to the present invention.
  • the porous ball 180 is made of a porous ceramic or a porous metal oxide of lmm ⁇
  • the porous ball 180 elutes the silver ion to supply the silver ion to the water stored within the water tank 10.
  • the net 81 is made of stainless steel SUS and plays the role of limiting the movement of the porous balls 180 within the water tank 10.
  • FIG. 9 is a diagram representing a silver ion supply device according to a sixth embodiment of the present invention.
  • a silver ion supply device 190 according to the sixth embodiment of the present invention is installed in the water supply pipe 32 for supplying the purified water into the water tank 10.
  • the silver ion supply device 190 includes a plurality of porous balls coated with silver to elute the silver ion and supplies the silver ion to the water supplied to the water tank 10 from the water purifying part 2.
  • FTG. 10 is a diagram representing a water tank 200 according to another embodiment of the present invention.
  • the water tank 200 has a water inlet pipe 210 and a water outlet pipe 220 installed at the bottom surface, and the interior thereof is sealed off.
  • inert gas such as air or nitrogen, helium and so on is filled into the empty water tank with the normal pressure and the water purified is supplied to the sealed-up water tank 200, the inside of the water tank 200 is compressed and the water is fixedly coming out with a pressure of 1.8-2.5 kgf/cm 2 which is the proper pressure required for the unit chair that is a dental equipment.
  • the inert gas such as the air or nitrogen, helium and so on is filled into the water tank 200 with a pressure of above the normal pressure in order to reduce the size within the water tank 200
  • the degree of space usage within the water tank 200 is increased to be able to increase the volume of the water stored within the water tank 200 and the water can be made to fixedly come out with the pressure of 1.8-2.5 kgf/cm to the unit chair.
  • a pressure control device 221 which can control pressure and passes the water from the water tank 200 only when it is above a fixed pressure, is stuck to the water outlet pipe 201, it is possible to prevent the outflow of the gas filled within the water tank and to increase the interior volume of the water tank 200.
  • the water inlet pipe 210 is installed in the water supply pipe of the water tank as shown in FIG. 10, thus if the sterilized and purified water is supplied to the water tank 200, the silver ion eluted by the silver coated on the porous ball 180 is mixed between the water stored within the water tank 200 and the sterilized and purified water, and then the mixed water can be made to be discharged through the water outlet pipe 220.
  • the compressed air supplier 40 of FlG. 2 for generating the purified compressed air might be removed, thus the configuration of the dental water supply apparatus can be simplified and made thin.

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Abstract

This invention relates to a method and apparatus for supplying dental water for using silver ion water with strong sterilizing power as a dental water. A method of supplying dental water according to an embodiment of the present invention includes the steps of supplying ozone to water; supplying silver ion to the water; and supplying the water having the ozone and silver ion to a dental medical equipment.

Description

Description
METHOD AND APPARATUS FOR SUPPLYING WATER IN
DENTAL WATER TANK
Technical Field
[1] The present invention relates to an apparatus for supplying dental water, and more particularly to a method and apparatus for supplying dental water that is adaptive for increasing antibiotic power and sterilizing power by supplying silver ions to dental water. Background Art
[2] Generally, the water supplied to a dental medical equipment cools down the heat generated at a handpiece of a dental unit chair, and is used when removing the dust and remains which are generated when grinding or when rinsing the mouth. Because of this, sanitation and cleanliness is important, and especially, the water gets directly in contact with the injured region of mouth, thus the importance of antibiotic effect and sterilizing effect is emphasized. Further, because the handpiece, a sealer and so on get in contact with the contaminated teeth or affected part, a variety of bacteria existing in the contaminated part forms a biofilm in the hose and water tank which is connected to the medical equipment, thus there is a problem in that the bacteria can cause secondary infection or cross infection to other patient as well as the bacteria can be propagated. And it is required to solve the problem.
[3] Further, the related art dental water supply apparatus often needs the cleaning and disinfection of the inner part of the tank which preserves water so that cost and effort is required and sanitation problem is brought about if care is neglected.
[4] For sanitation and sterilization of such dental supply water, various medicine or ozone was used in the related art. But, a method of increasing the antibiotic effect and sterilizing effect a little bit more is groped for because there is a limit in the function of antibiotic system.
[5] On the other hand, it is traditionally proved that silver Ag has an effect of sterilizing various bacteria, so that the silver is used as accessories or health products. Par¬ ticularly, silver ion Ag+ has the strongest antibiotic effect among antibiotic methods by metal ion, does not irritate skin, has a continuous and stable residual effect, and completely sterilizes even part which is not sterilized by ozone. In this way, the most effective method for using silver to be useful to the human body is proved to be most desirably that silver is used by being made into colloidal form in silver ion Ag+ state. The silver ion Ag+ dissolved in distilled water is called colloidal silver so that it is widely used as a substitute health treatment. In this way, silver ion water is reported to sterilize 650 kinds of bacteria and, above all, has a characteristic that there is no resistance differently from general antibiotic materials. The silver ion water is made to appropriately generate a very small amount of mineral with distilled water, thus it is very safe for children to use and has no adverse effect of the resistance of the antibiotic material bought at a drugstore. Disclosure of Invention Technical Problem
[6] Accordingly, it is an object of the present invention to provide a method and apparatus for supplying dental water that is adaptive for increasing antibiotic power and sterilizing power by supplying silver ions to dental water. Technical Solution
[7] In order to achieve these and other objects of the invention, a method of supplying dental water according to an aspect of the present invention includes the steps of: supplying ozone to water; supplying silver ion to the water; and supplying the water having the ozone and silver ion to a dental medical equipment.
[8] A method of supplying dental water according to another aspect of the present invention includes the steps of supplying silver ion to water; and supplying the water having the silver ion to a dental medical equipment.
[9] A dental water supply apparatus according to still another aspect of the present invention includes a water tank which stores water that is purified and sterilized and discharges the water with a fixed pressure; a water discharge pipe which discharges the purified and sterilized water from the water tank; and a silver ion supply device which converts the water, which supplied from a dental medical equipment through the water discharge pipe, into a silver ion water.
[10] In the dental water supply apparatus, the silver ion supply device includes a pair of silver electrode; a power source part to supply power to the silver electrode; and a controller for making the power source part on/off in accordance with the water level of the water tank.
[11] In the dental water supply apparatus, the silver ion supply device is installed in the inside of the water tank.
[12] In the dental water supply apparatus, the silver ion supply device includes a silver ion water tank connected to the water discharge pipe.
[13] A dental water supply apparatus according to still another aspect of the present invention includes a water purifying part to purify and sterilize an original water; a water tank which stores the purified and sterilized water and discharges the stored water; and a silver ion supply device which supplies silver ion to the water within the water tank. [14] In the dental water supply apparatus, the silver ion supply device includes a plurality of porous balls coated with silver.
[15] In the dental water supply apparatus, the silver ion supply device further includes a net installed within the water tank to limit the movement of the porous balls.
[16] The dental water supply apparatus further includes an air gap device having an air gap between a water inlet opening through which the original water is supplied and a tank at which the original water is stored.
[17] The dental water supply apparatus further includes a pressure control device which is installed at a water outlet pipe of the water tank and has the water from the water tank come out only when it is above a fixed pressure, and wherein a compressed air is not supplied continuously to the water tank.
[18] A dental water supply apparatus according to still another aspect of the present invention includes a water purifying part to purify and sterilize an original water; a water tank which stores the purified and sterilized water and discharges the stored water; a water supply pipe installed between the water purifying part and the water tank to supply the purified and sterilized water to the water tank; and a silver ion supply device installed in the water supply pipe to supply silver ion to the purified and sterilized water.
[19] In the dental water supply apparatus, the silver ion supply device includes a plurality of porous balls coated with silver.
[20] The dental water supply apparatus further includes an air gap device having an air gap between a water inlet opening through which the original water is supplied and a tank at which the original water is stored.
[21] The dental water supply apparatus further includes a pressure control device which is installed at a water outlet pipe of the water tank and has the water from the water tank come out only when it is above a fixed pressure, and wherein a compressed air is not supplied continuously to the water tank. Advantageous Effects
[22] As described above, the dental water supply apparatus according to the present invention supplies the original water from the water supply source to the water tank through the water purifying part and supplies the silver ion water with strong sterilizing power to the dental medical equipment by adding the silver ion to the ozone water which is generated by sterilizing the water stored at the water tank. As a result, the dental water supply apparatus according to the present invention uses the silver ion water having strong antibiotic power and sterilizing power as the dental water, thus stronger sterilizing effect can be obtained without adverse effect and it is possible to prevent that the bacteria transferred from the patient whose mouth is contaminated is secondary-infected to other people through the medical appliance. Brief Description of the Drawings
[23] FlG. 1 is a diagram representing a dental water supply apparatus according to an embodiment of the present invention;
[24] FlG. 2 is a diagram representing a compressed air supplier for supplying a compressed air to the dental water supply apparatus shown in FlG. 1 ;
[25] FlG. 3 is a diagram representing a silver ion supply device according to a first embodiment of the present invention;
[26] FlG. 4 is a diagram representing a silver ion supply device according to a second embodiment of the present invention;
[27] FlG. 5 is a diagram representing a silver ion supply device according to a third embodiment of the present invention;
[28] FlG. 6 is a diagram representing a silver ion supply device according to a fourth embodiment of the present invention;
[29] FlG. 7 is a diagram representing an air gap device for supplying an original water to a water purifying part.
[30] FlG. 8 is a diagram representing a silver ion supply device according to a fifth embodiment of the present invention;
[31] FlG. 9 is a diagram representing a silver ion supply device according to a sixth embodiment of the present invention; and
[32] FlG. 10 is a diagram representing a water tank according to another embodiment of the present invention. Best Mode for Carrying Out the Invention
[33] Other object and characteristics of the present invention than the above objects will be clearly made through the explanation for the embodiments in reference to the ac¬ companying drawings. Mode for the Invention
[34] Hereinafter, in reference to FlGs. 1 to 10, preferred embodiments of the present invention will be explained as follows.
[35] Referring to FlGs. 1 to 3, a dental water supply apparatus according to the present invention includes a water purifying part 2 for purifying original water; a water tank 10 connected to dental unit chairs 101 to 1OK through a water discharge pipe 12 and a water return pipe 19; a pump 3 A and an auxiliary water tank 51 connected to the water tank 10 through an auxiliary water supply pipe 38; a ball top 34 floating by buoyancy in the water stored within the water tank 10; a first water supply pipe 32 of which the water supply opening is intercepted by the ball top 34 when the water stored within the water tank 10 reaches a fixed water level; a second water supply pipe 33 installed between the water purifying part 2 and a drinking water cooler/heater 17; a waste water pipe 31 installed between the water purifying part 2 and a waste water treatment device; an ozone lamp 13 installed within the water tank 10; a compressed air supplier 40 for supplying a purified compressed air into the water tank 10; solenoid valves IA, IB, 1C, IE installed in pipes 31, 32, 33, 37 where water flows; a three-way valve 5B; and a control part 60 which controls a heater 16 and pumps 3 A, 3B and provides interface for a supervisor.
[36] The original water is a tap water or an underground water supplied from the water supply source, or the water which is supplied through an air gap device 170, as in FlG. 7, and the original water is supplied to the water purifying part 2 through an original water pipe 37 and a first solenoid valve IA.
[37] The water tank 10 is made of stainless steel SUS and so on and its interior is coated with Teflon or resin of which the corrosion resistance and chemical resistance are excellent. The water flowing in from the pumps 3A, 3B is controlled by a water level control means which includes the ball top 34 and a controller 64, thus the water stored inside the water tank 10 is always kept at a fixed water level. In other words, the water tank 10 has water supplied with a fixed pressure by the pumps 3 A, 3B and the first water supply pipe 32 which penetrates into the inside of the water tank 10. Ac¬ cordingly, the water is supplied to the water tank 10 without opening and closing the cap, thus there is generated no secondary infection of the water tank 10 that the water tank 10 is contaminated by a contaminated air when supplying water from the related art water tank which supplies water by opening the cap.
[38] The auxiliary water tank 51 stores water for handling when water supply is cut off, and is made of stainless steel SUS. The solenoid valve IE connected to the auxiliary water tank 51 can be electrically controlled by the controller 64, but it can be replaced with a manual valve.
[39] The control part 60 includes the controller 64, a memory 61 connected to the controller 64, a display device 62 and an input/operation panel 63.
[40] The water purifying part 2 plays the role of removing various impurities, rust remnants, a floating material or a chemical contaminated material, heavy metal, ion, bacteria and so on which are contained in the original water supplied from the original water pipe 37. For this, the water purifying part 2 includes a pre-sediment filter 21 installed between the first solenoid valve IA and the pump 3A; a pre-carbon filter 22 installed in series between the auxiliary pump 3B and the second three-way valve 5B; a post carbon filter 23 and a post sediment filter 24; a reverse osmotic filter 7 installed between the second three-way valve 5B and the water supply pipes 32, 33; and a TOR filter (taste odor removal filter) 8 installed between the reverse osmotic filter 7 and the drinking water cooler/heater 17. [41] The sediment filter 21, 24 is composed of nonwoven fabric or filter paper and removes the various impurities, the rust remnants and the floating material which are contained in the original water. The carbon filter 22, 23 removes the chemical con¬ taminated material. The reverse osmotic filter 7 only lets water H O pass through and removes the heavy metal, the bacteria, the ion material by a membrane separation method by use of a membrane which intercepts the heavy metal, the bacteria, the ion material which are bigger than the molecule of water. The TOR filter removes the unpleasant taste and odor in the water to supply the purified water, from which the taste and odor is removed, to the driving water cooler/heater.
[42] The pump 3A is driven by the power supplied from an adaptor 4A under the control of the controller 64, thus the water purified by the water purifying part 2 is supplied to the water tank 10 with a fixed pressure. The original water is smoothly supplied to the water purifying part 2 by the pump 3A, and the water purified by the water purifying part 2 is smoothly filled into the water tank 10. For example, if the pressure of the original water is low, the original water is pressed to above the fixed pressure by the pump 3A, thus a water purifying process is smoothly performed by the water purifying part 2. The pump 3 A supplies the water, which is purified at the water tank 10 with the fixed pressure, until the pump 3A is stopped by the controller 64.
[43] The auxiliary pump 3B is driven under the control of the controller 64 when the pump 3A is out of order and supplies the original water to the water purifying part 2 and the water tank 10 with a fixed pressure. If the pump 3 A is out of order while water is not cut off, the level of the water stored within the water tank 10 becomes abnormally low. In this way, when the water is not cut off and the level of water stored in the water tank 10 is sensed below the lower limit level of the water, which is stored at the water tank , for longer than the fixed time, the controller 64 drives the auxiliary pump 3B by judging that the pump 3A is out of order.
[44] The controller 64 controls the three-way valve 5B to fixedly keep the water level within the water tank 10 and controls the solenoid valve IE so that the water stored in the auxiliary water tank 51 can be supplied to the auxiliary water tank 50 when water is cut off. The water stored at the auxiliary water tank 50 upon the water cut-off is supplied directly to the water tank 10 through the auxiliary water supply pipe 38 and the solenoid valve IE. Further, it controls a power source part 14 which applies power to a silver ion supply device 80.
[45] The input/operation panel 63 has an on/off key of a silver power source, a pressure gauge, a keyboard and so on so that the supervisor is allowed to control the dental water supply apparatus and to watch and control the pressure of the water. Further, the supervisor can input and renew information such as consultation hour through the input/operation panel 63. [46] The display device 62 displays the information inputted from the controller 64 to allow the supervisor to be able to know the operation state of the dental water supply apparatus.
[47] The waste water treatment device 9 plays the role of out-letting the waste water supplied from the reverse osmotic filter 7 through a very small hole. The third solenoid valve 1C installed at both sides of the waste water treatment device 9 is opened to bypasses the waste water at a rapid speed without passing through the waste water treatment device 9 under the control of the controller 64 so as for the waste water treatment device 9 to remove the residue which is stuck to the wall surface of the reverse osmotic filter 7 being an ultra-minute membrane.
[48] FlG. 2 is a diagram representing a pressed air supplier shown in FIG. 1.
[49] Referring to FIG. 2, a compressed air supplier 40 includes a compressor 25, an air purifier 26 and a pressure controller 27 which are connected in series. The compressor
25 generates a compressed air and the air purifier 26 is composed of an air purifying filter made of a minute membrane such as a nonwoven fabric and a filter device to remove various impurities, minute dust and so on which are contained in the compressed air that is compressed by the compressor 25. The pressure controller 27 is a regulator and controls the pressure of the compressed air which is purified by the air purifier 26. The air pressure of the compressed air which is purified by the air purifier
26 is 8-6 kgf/cm , but the air pressure of the compressed air which is controlled by the pressure controller 27 keeps at 1.8-2.5 kgf/cm2. The water stored within the water tank 10 by the compressed air that is compressed to be a fixed air pressure is made to have a fixed pressure. As a result, the compressed air generated from the compressed air supplier 40 flows into the water tank 10, thus the water stored within the water tank 10 by the compressed air is supplied to the dental unit chairs 101 to 1OK with a fixed pressure. The water supplied to the dental unit chairs 101 to 1OK is supplied to the last end medical equipment 71 to 7K such as a handpiece, a mouth cleaning stand, a sealer and so on.
[50] FlG. 3 is a diagram representing a silver ion supply device according to a first embodiment of the present invention.
[51] Referring to FIG. 3, the water tank includes the ball top 34, an ozone lamp 13, a temperature sensor 15, a heater 16, a water level sensing detector 18A, 18B, 18C, and a silver ion supply device 80.
[52] The ball top 34 has air injected into the inside thereof so as for buoyancy to be generated, and floats on the water surface within the water tank 10. The ball top 34 is connected to one side of a lever (not shown) of which one side is connected by a hinge, and moves up and down along the water level within the water tank 10 to push up and down the stopper of the water supply opening. The water supply opening stopper opens and closes the water supply opening in correspondence with the up-and-down movement of the ball top 34.
[53] The water level sensing detectors 18 A, 18B, 18C are respectively located in corre¬ spondence with an upper limit water level, a middle water level and a lower limit water level within the water tank 10 and generates a water level sensing signal Sh.
[54] The controller 64 judges that it is difficult to supply water to the water tank 10 because the pump 3A is out of order or the reverse osmotic filter 7 is blocked when the lower limit water level sensing signal among the water level sensing signals Sh is inputted for longer than a fixed time, so that the controller 64 makes the auxiliary pump 3B run and the three-way valve 5B operated, thus the water tank 10 is made to be filled quickly through a UF membrane filter 70 of which the pore is big and which is between the post sediment filter.
[55] If the water level is the high water level, the signal from the high water level sensing detector 18A is applied to the controller 64, and the controller 64 controls an original water supply switch valve to be closed. If there is a problem in an electrical control function, the water supply opening of the first water supply pipe 32 is blocked to prevent the overflow of the water within the water tank 10 in the ball top 34. In this way, if the water supply opening of the first water supply pipe 32 is blocked by the ball top 34, the pressure within the first water supply pipe 32 reaches above a set pressure to stop the pumps 3A, 3B, thus no more water flows into the water tank 10.
[56] The temperature sensor 15 senses the temperature of the water stored within the water tank 10 and supplies to the controller 64 a temperature sensing signal St which indicates the temperature of the water. In response to the temperature sensing signal St, the controller 64 drives the heater 16 for preventing the water tank 10 from being frozen to burst if the temperature of the water stored at the water tank 10 is judged to be kept for a fixed time at a designated temperature, e.g., below 5 ?. Then, the heater 16 increases the temperature within the water tank 10 under the control of the controller 64, thereby preventing it from being frozen to burst.
[57] The ozone lamp 13 is discharged by the power from the power source part 14. An ozone generating device can be used instead of the ozone lamp 13, wherein the ozone generating device electrolyzes the water and converts oxygen into the ozone water by use of the discharge. The ozone generating device is more effective if the dissolved oxygen of the water stored within the water tank 10 is low.
[58] The silver ion supply device 80 supplies the silver ion water so that the water within the water tank 10 keeps a fixed silver ion concentration. The water which is disinfected and has a sterilizing power by the ozone lamp 15 comes to have the stronger sterilizing power and antibiotic power as the silver ion is added thereto.
[59] The silver ion supply device 80 includes a pair of silver electrodes 83; a silver ion water concentration sensor 81 for sensing the silver ion concentration within the water tank 15; a DC power source part to supply power to the silver electrode pair 83; and the controller 64 which controls the operation of the silver ion supply device while pe¬ riodically changing the polarity of the power applied to the silver electrode pair 83 by controlling the power source part. If the power is applied to the silver electrode pair 83 from the power source part, the silver ion is dissolved into the water by the electrolysis, thus the dental water becomes the silver ion water. The controller 64 controls the power source part in accordance with the silver ion concentration within the water tank sensed by the silver ion water concentration sensor 81. The silver ion water concentration having the sterilizing power is generally above 0.01 ppm, but because the water is changed to the ozone water by the ozone lamp, the sterilizing power can be improved only with a small amount of silver ion.
[60] The water within the water tank 10 is a purified water or a distilled water for preventing silver chloride AgCl from being generated, wherein the silver chloride AgCl is harmful to human body and is generated by silver being in action with the chlorine Cl component which is contained in the normal water.
[61] The silver ion water is supplied to the dental unit chair 101 to 1OK through the water discharge pipe 12 and to a plurality of water tanks 10 through the water return pipe 12, as shown in FIG. 3, to be continuously in circulation between the water tank 10 and the unit chair, thereby keeping the sterilizing power within the pipe. For example, in the related art, if water is not discharged from the dental unit chairs 101 to 10K, the water within the water discharge pipe 12 installed between the water tank 10 and the dental unit chair 101 to 1OK is tied up, thus even the water is sterilized, the sterilizing power becomes lost as time elapses. In this case, the pipe or hose installed between the water tank 10 and the dental unit chair 101 to 1OK is infected and the infection causes the secondary infection to the mouth of patient or the water tank 10. On the contrary, in the dental water supply apparatus according to the present invention, the water stored within the water tank 10 is converted into the ozone water, becomes to have a strong sterilizing power because the silver ion is included, and the ozone water containing the silver ion is circulated not to lose the sterilizing power, thus the pipes 12, 19 installed between the water tank 10 and the dental unit chair 101 to 1OK are always sterilized.
[62] Further, the dental water supply apparatus according to the present invention, as shown in FTG. 3, includes a drug tank 52 for supplying a drug with strong sterilizing power and disinfecting power to a flowing water through the water discharge pipe 12; a drug supply pipe 53 and a solenoid valve 55; a pump 3C for circulating water; and a three-way valve 54 installed in the water return pipe 19. In the whole sterilization mode, the dental unit chairs 101 to 1OK to the pipe or hose in the last end medical equipment 71 to 7K such as the handpiece, the mouth cleaning stand, the sealer and so on are sterilized and disinfected with the water having the sterilizing power and the drug mixed in the water. In the whole sterilization mode, the three-way valve 54 connected to the water return pipe 19 connects a sewage treatment part for treating the waste water and the water return pipe 19 under the control of the controller 64 for a fixed time. But, in the normal driving state, but not in the whole sterilization mode, the three-way valve 54 intercepts the connection between the water return pipe 19 and the water tank 10 to open the water supply path between the water return pipe 19 and the water tank 10.
[63] The solenoid valve 55 connected to the drug supply pipe 53 opens the drug supply path between the drug tank 52 and the water discharge pipe 12 in the whole ster¬ ilization mode, but the solenoid valve 55 intercepts the drug supply path between the drug tank 52 and the water discharge pipe 12 to open the water supply path between the water supply pipe 12 and the water tank 10 in the normal driving state, but not in the whole sterilization mode.
[64] The drug stored within the drug tank 52 is in a liquid state or has a form of powder, and is supplied to the water discharge pipe 12 in a piston method. The drug includes at least any one of sodium hypochlorite NaOCl, chloramines, elemental chlorine, chlorhexidine, H O and iodine composition.
[65] The pump 3C is connected to the water discharge pipe 12 or the water return pipe
19 to circulate the water between the water discharge pipe 12 and the water return pipe 19, or pumps the water, which sterilized the water discharge pipe 12 in the whole ster¬ ilization mode, to the sewage treatment part.
[66] It is desirable that the water discharge opening of the last end medical equipment 71 to 7K installed at each of the dental unit chairs 101 to 1OK in the whole sterilization mode. This is because the water into which drug is mixed and to which the sterilizing power is given by the ozone can sterilize and disinfect as far as the water discharge opening of the last end medical equipment 71 to 7K.
[67] The operation time of the whole sterilization mode is pre-set in the controller 64.
The solenoid valve 54 connected to the water return pipe 19 and the solenoid valve 55 connected to the drug supply pipe 53 can be replaced with a manual valve. In this case, the supervisor closes the manual valve connected to the water return pipe 19 and opens the manual valve connected to the drug supply pipe 53 if it is judged that the overall disinfection is required.
[68] FIG. 4 is a diagram representing a silver ion supply device according to the second embodiment.
[69] In this embodiment, the same components as in the foregoing embodiments are given the same reference numerals as in the foregoing embodiments, and the detail de- scription thereof is omitted.
[70] Referring to FIG. 4, the silver ion supply device according to an embodiment of the present invention includes a small silver ion water tank 91 connected to the water discharge pipe 12 which is connected to the water tank 10 and the last end medical equipment and a silver ion supply device 90 within the silver ion water tank 91.
[71] The water firstly stored at the water tank 10 is secondly stored at the silver ion water tank 91 through a water outlet pipe 11. The water stored at the silver ion water tank 91 becomes the silver ion water by the silver ion supply device 90. The silver ion water stored at the silver ion water tank 91 is not the water which is to be supplied finally, but highly-concentrated silver ion water. In case that the last end medical equipment is used, the controller 64 controls the valve 92 to spray the highly- concentrated silver ion water to the water which runs through the water discharge pipe 12, thereby making the finally-discharged water a properly-concentrated silver ion water. Further, in case that the last end medical equipment is not used, the water is supplied to the silver ion water tank 91, thereby having the highly-concentrated silver ion water stored up. Some extent of time is required for making it the properly- concentrated silver ion water, but if the small silver ion water tank is provided, it is possible to reduce the time of making the silver ion water.
[72] However, even in such a case, in case that the number of the silver ion water tank is one, if the water from the water tank in accordance with the requirement of the silver ion water which is finally discharged is supplied to the silver ion water tank, it might be possible that the time is short for making a proper silver ion concentration, and if it is tried to secure a sufficient time for making the proper concentration, the usage amount of the water required in the last end might not be made.
[73] FIG. 5 is a diagram representing the silver ion supply device according to a third embodiment of the present invention.
[74] Referring to FIG. 5, the silver ion supply device according to the present invention includes more than a few small silver ion water tanks 111, 112, , 11m (but, m is a natural number) which are connected to the water discharge pipe 12 connecting the water tank 10 and the last end medical equipment and have the water level sensing detector therewithin. Each of the silver ion water tanks 111, 112, , 11m has a silver ion supply device 10OA, 10OB, therewithin.
[75] In this embodiment, the contents of the ball top 34, the temperature sensor 15, the ozone lamp 13, the drug tank 52 is the same as in the foregoing first and second em¬ bodiments, thus the description will be omitted.
[76] The water firstly stored at the water tank 10 is secondly stored at the silver ion water tanks 101 through the water outlet pipe 11.
[77] The silver ion supply device 100 supplies the silver ion water to the silver ion water tanks 111, 112, , 1 Im for the water to have the proper silver ion concentration.
[78] Firstly, the water of the first silver ion water tank 111 is used for discharging the water to the last end medical equipment, and for this, first and second discharge pipe valve 103B is made to open and all other valves are closed, thus the water within the first silver ion water tank 111 is discharged from the last end medical equipment through the water discharge pipe by the pressure difference within the water tank. If the water of the first silver ion water tank 111 is used up, the water of the second silver ion water tank 112 is used and the first silver ion water tank 111 receives the water from the water tank 10 to make the silver ion water.
[79] A timing controller 64 receives a signal by the water level sensing detector (not shown) within each silver ion water tank and gets at the remaining amount of the silver ion water of the silver ion water tanks, thereby controlling the valves.
[80] The repetition of such operations can be performed manually not by automatic control. For example, if only the water level of each silver ion water tank is informed to the display device by the signal, the opening and closing of the valve is performed manually. Further, in order to make the controller simple, it is possible to make the water level part of the silver ion water tank is made to be known through the naked eye.
[81] In this way, if more than a few silver ion water tanks are provided, the silver ion water is kept at the proper concentration within each silver ion water tank, and if the water of any one of the silver ion water tank is used and the level of the water is lowered, the water of another silver ion water tank is used while receiving the water from the water tank and making it at a proper concentration again, thus the silver ion water of the proper concentration can be always used.
[82] FIG. 6 is a diagram representing a silver ion supply device according to a fourth embodiment of the present invention.
[83] Referring to FIG. 6, the silver ion supply device according to the fourth embodiment of the present invention includes a silver ion water tank 121 installed in the water discharge pipe 12; and a flux sensing detector 125 at the beginning of the discharge pipe through which water is discharged from the silver ion water tank 121.
[84] An ion water fabricating device 110 installed within the silver ion water tank 121 supplies the silver ion to the ozone water under the control of the controller 64.
[85] The flux sensing detector 125 senses the water flowing in the water discharge pipe to send a signal to the controller when the water is used at the last end medical equipment.
[86] The controller 64, in response to the signal from the flux sensing detector 125, drives the silver ion water fabricating device 110 to increase the silver ion con¬ centration of the ozone water if the quantity of flow within the water discharge pipe 12 increases, i.e., the dental water is in use, but the controller 64 stops the drive of the silver ion water fabricating device 110 if the quantity of the flow within the water discharge pipe 12 decreases, i.e., the dental water is not in use.
[87] The structure of the overall device can be simplified by having the tank 121 which includes the silver ion water fabricating device 110 in the water discharge pipe 12. Further, the water flowing into the silver ion water tank 121 is also the water which already has the sterilizing power by the drug and ozone, thus the sterilizing power and the antibiotic power can be increased even with a small amount of silver ion addition right before being discharged to the last end.
[88] FIG. 7 is a diagram briefly representing the air gap device 170.
[89] Referring to FIG. 7, the air gap device 170 includes the tank 174 where a water inlet pipe 171, a water outlet pipe 172 and an overflow discharge opening 173.
[90] The underground water or the tap water which is supplied from the water supply source is supplied to the water inlet pipe 171. The water inlet opening of the water inlet pipe 171 is located in the upper end within the tank 174.
[91] The water outlet pipe 172 is connected to the water outlet opening which is formed in the bottom surface of the tank 172, and supplies the water stored at the tank 174 to the water purifying part 2.
[92] The overflow discharge opening 173 is formed in the side wall of the tank 174 between the water inlet opening of the water inlet pipe 171 and the water outlet opening formed at the bottom surface of the tank 174. Accordingly, an air gap of a designated height exists between the water inlet opening of the water inlet pipe 171 and the overflow discharge opening 173. The air gap intercepts the infection path between the water stored within the tank 174 and the water inlet pipe, and the height of the air gap should be above 25mm.
[93] If the water level of the tank 174 becomes higher than the overflow discharge opening 173, the water within the tank 173 is discharged to the outside through the overflow discharge opening 173. Accordingly, the overflow discharge opening 173 plays the role of fixedly keeping the level of the water stored within the tank 173 to keep the air gap height.
[94] On the other hand, in the air gap device 170, the opening and closing device using the solenoid valve, the water level sensor, the hinge, the lever and the ball top might be installed within the tank 174. The opening and closing device plays the role of opening and closing the water inlet opening of the water inlet pipe 171 by use of the ball top which rises in accordance with the water level within the tank 174 and the hinge and lever which rotationally move in conjunction with the ball top.
[95] FIG. 8 is a diagram representing a silver ion supply device according to a fifth embodiment of the present invention. [96] Referring to FIG. 8, within the water tank 10 according to the present invention, a net 81 holding a plurality of porous balls 180 is installed.
[97] The porous ball 180 is made of a porous ceramic or a porous metal oxide of lmm ~
20mm in diameter and has its surface coated with silver Ag. The porous ball 180 elutes the silver ion to supply the silver ion to the water stored within the water tank 10.
[98] The net 81 is made of stainless steel SUS and plays the role of limiting the movement of the porous balls 180 within the water tank 10.
[99] FIG. 9 is a diagram representing a silver ion supply device according to a sixth embodiment of the present invention.
[100] Referring to FIG. 9, a silver ion supply device 190 according to the sixth embodiment of the present invention is installed in the water supply pipe 32 for supplying the purified water into the water tank 10.
[101] The silver ion supply device 190 includes a plurality of porous balls coated with silver to elute the silver ion and supplies the silver ion to the water supplied to the water tank 10 from the water purifying part 2.
[102] FTG. 10 is a diagram representing a water tank 200 according to another embodiment of the present invention.
[103] Referring to FIG. 10, the water tank 200 according to the present invention has a water inlet pipe 210 and a water outlet pipe 220 installed at the bottom surface, and the interior thereof is sealed off.
[104] If inert gas such as air or nitrogen, helium and so on is filled into the empty water tank with the normal pressure and the water purified is supplied to the sealed-up water tank 200, the inside of the water tank 200 is compressed and the water is fixedly coming out with a pressure of 1.8-2.5 kgf/cm2 which is the proper pressure required for the unit chair that is a dental equipment. Further, if the inert gas such as the air or nitrogen, helium and so on is filled into the water tank 200 with a pressure of above the normal pressure in order to reduce the size within the water tank 200, the degree of space usage within the water tank 200 is increased to be able to increase the volume of the water stored within the water tank 200 and the water can be made to fixedly come out with the pressure of 1.8-2.5 kgf/cm to the unit chair. If a pressure control device 221, which can control pressure and passes the water from the water tank 200 only when it is above a fixed pressure, is stuck to the water outlet pipe 201, it is possible to prevent the outflow of the gas filled within the water tank and to increase the interior volume of the water tank 200.
[105] On the other hand, it is desirable that the water inlet pipe 210 within the water tank
200 is extended to be higher than the bottom surface of the water tank 200. The water inlet pipe 210 is installed in the water supply pipe of the water tank as shown in FIG. 10, thus if the sterilized and purified water is supplied to the water tank 200, the silver ion eluted by the silver coated on the porous ball 180 is mixed between the water stored within the water tank 200 and the sterilized and purified water, and then the mixed water can be made to be discharged through the water outlet pipe 220.
[106] In case that the water tank 200 is applied to the dental water supply apparatus of
FlG. 1, the compressed air supplier 40 of FlG. 2 for generating the purified compressed air might be removed, thus the configuration of the dental water supply apparatus can be simplified and made thin.
[107] Although the present invention has been explained by the embodiments shown in the drawings described above, it should be understood to the ordinary skilled person in the art that the invention is not limited to the embodiments, but rather that various changes or modifications thereof are possible without departing from the spirit of the invention. Accordingly, the scope of the invention shall be determined only by the appended claims and their equivalents.

Claims

Claims
[1] A method of supplying dental water, comprising the steps of: supplying ozone to water; supplying silver ion to the water; and supplying the water having the ozone and silver ion to a dental medical equipment. [2] A method of supplying dental water, comprising the steps of: supplying silver ion to water; and supplying the water having the silver ion to a dental medical equipment. [3] A dental water supply apparatus, comprising: a water tank which stores water that is purified and sterilized and discharges the water with a fixed pressure; a water discharge pipe which discharges the purified and sterilized water from the water tank; and a silver ion supply device which converts the water, which supplied from a dental medical equipment through the water discharge pipe, into a silver ion water. [4] The dental water supply apparatus according to claim 3, wherein the silver ion supply device includes: a pair of silver electrode; a power source part to supply power to the silver electrode; and a controller for making the power source part on/off in accordance with the water level of the water tank. [5] The dental water supply apparatus according to claim 3, wherein the silver ion supply device is installed in the inside of the water tank. [6] The dental water supply apparatus according to claim 3, wherein the silver ion supply device includes: a silver ion water tank connected to the water discharge pipe. [7] A dental water supply apparatus, comprising: a water purifying part to purify and sterilize an original water; a water tank which stores the purified and sterilized water and discharges the stored water; and a silver ion supply device which supplies silver ion to the water within the water tank. [8] The dental water supply apparatus according to claim 7, wherein the silver ion supply device includes: a plurality of porous balls coated with silver. [9] The dental water supply apparatus according to claim 8, wherein the silver ion supply device further includes: a net installed within the water tank to limit the movement of the porous balls. [10] The dental water supply apparatus according to claim 7, further comprising: an air gap device having an air gap between a water inlet opening through which the original water is supplied and a tank at which the original water is stored. [11] The dental water supply apparatus according to claim 7, further comprising: a pressure control device which is installed at a water outlet pipe of the water tank and has the water from the water tank come out only when it is above a fixed pressure, and wherein a compressed air is not supplied continuously to the water tank. [12] A dental water supply apparatus, comprising: a water purifying part to purify and sterilize an original water; a water tank which stores the purified and sterilized water and discharges the stored water; a water supply pipe installed between the water purifying part and the water tank to supply the purified and sterilized water to the water tank; and a silver ion supply device installed in the water supply pipe to supply silver ion to the purified and sterilized water. [13] The dental water supply apparatus according to claim 12, wherein the silver ion supply device includes: a plurality of porous balls coated with silver. [14] The dental water supply apparatus according to claim 12, further comprising: an air gap device having an air gap between a water inlet opening through which the original water is supplied and a tank at which the original water is stored. [15] The dental water supply apparatus according to claim 12, further comprising: a pressure control device which is installed at a water outlet pipe of the water tank and has the water from the water tank come out only when it is above a fixed pressure, and wherein a compressed air is not supplied continuously to the water tank.
PCT/KR2005/002537 2004-08-04 2005-08-04 Method and apparatus for supplying water in dental water tank WO2006014080A1 (en)

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EP2047818A2 (en) * 2007-10-12 2009-04-15 Heka Dental ApS A water supply unit to protect drinking water against pollution, and use of the water supply unit
EP2110096A1 (en) * 2008-04-18 2009-10-21 Cefla Societa' Cooperativa Dental work station
WO2010097649A1 (en) * 2009-02-26 2010-09-02 Bau', Filippo Maria Medical surgery, in particular a dental surgery, with apparatuses and plants in conditions of impeccable sterility, in order to reduce cross infections drastically
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ITMI20131764A1 (en) * 2013-10-23 2015-04-24 Claudio Continolo DENTAL ORGANIZATION UNIT COMPOSED OF SINGLE ORIGINAL EQUIPMENT, BETWEEN THEM COMBINED BY TUBES AND CABLES, THAT ALLOW TO OPERATE IN CONDITIONS OF ABSOLUTE STERILITY
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EP2047818A2 (en) * 2007-10-12 2009-04-15 Heka Dental ApS A water supply unit to protect drinking water against pollution, and use of the water supply unit
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EP2110096A1 (en) * 2008-04-18 2009-10-21 Cefla Societa' Cooperativa Dental work station
WO2010097649A1 (en) * 2009-02-26 2010-09-02 Bau', Filippo Maria Medical surgery, in particular a dental surgery, with apparatuses and plants in conditions of impeccable sterility, in order to reduce cross infections drastically
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ITMI20131764A1 (en) * 2013-10-23 2015-04-24 Claudio Continolo DENTAL ORGANIZATION UNIT COMPOSED OF SINGLE ORIGINAL EQUIPMENT, BETWEEN THEM COMBINED BY TUBES AND CABLES, THAT ALLOW TO OPERATE IN CONDITIONS OF ABSOLUTE STERILITY
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WO2016034279A1 (en) * 2014-09-01 2016-03-10 DüRR DENTAL AG Water preparation device for a dental treatment unit
US10351807B2 (en) 2015-08-21 2019-07-16 Applied Silver, Inc. Systems and processes for treating textiles with an antimicrobial agent
US11292993B2 (en) 2015-08-21 2022-04-05 Applied Silver, Inc. Systems and processes for treating textiles with an antimicrobial agent
US10760207B2 (en) 2017-03-01 2020-09-01 Applied Silver, Inc. Systems and processes for treating textiles with an antimicrobial agent
US11053637B2 (en) 2017-03-01 2021-07-06 Applied Silver, Inc. Systems and processes for treating textiles with an antimicrobial agent
WO2018197347A1 (en) * 2017-04-26 2018-11-01 Adept Water Technologies A/S Device for use in a water line
US20200078135A1 (en) * 2017-04-26 2020-03-12 Adept Water Technologies A/S Device for use in a water line
US11701201B2 (en) 2017-04-26 2023-07-18 Adept Water Technologies A/S Device for use in a water line

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