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WO2007034612A1 - Dispositif à jet de poudre pour traitement dental - Google Patents

Dispositif à jet de poudre pour traitement dental Download PDF

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Publication number
WO2007034612A1
WO2007034612A1 PCT/JP2006/313593 JP2006313593W WO2007034612A1 WO 2007034612 A1 WO2007034612 A1 WO 2007034612A1 JP 2006313593 W JP2006313593 W JP 2006313593W WO 2007034612 A1 WO2007034612 A1 WO 2007034612A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
pressurized gas
mixing chamber
tank
rotating body
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.)
Ceased
Application number
PCT/JP2006/313593
Other languages
English (en)
Japanese (ja)
Inventor
Akihiko Shimizu
Noriyuki Negoro
Masuhito Yasui
Harunobu Kumeda
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.)
Shofu Inc
Original Assignee
Shofu Inc
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 Shofu Inc filed Critical Shofu Inc
Publication of WO2007034612A1 publication Critical patent/WO2007034612A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
    • A61C3/025—Instruments acting like a sandblast machine, e.g. for cleaning, polishing or cutting teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0092—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed by mechanical means, e.g. by screw conveyors

Definitions

  • the present invention relates to a powder injection device in the dental field.
  • the present invention relates to a powder injection device used for treatments such as tooth grinding (or cutting), tooth caries removal, and tooth surface cleaning.
  • a rotary grinding apparatus using an air turbine, a micromotor, or the like as a power source has been mainly used for cutting teeth or removing carious portions of teeth in dental treatment.
  • the rotary grinding machine generated heat, vibration, and noise, causing patient discomfort.
  • powder injection devices have come to be used in place of rotary grinding devices.
  • a powder spray device generally, compressed air mixed with powder for grinding (or cutting) is blown to a treatment site of a patient's tooth.
  • the compressed air causes the powder to collide with the tooth surface at a sufficiently high speed, and the tooth surface is shaved.
  • the powder injection device does not generate heat, vibration, or noise unlike the rotary grinding device, so it can reduce the pain given to the patient.
  • Powder injection devices are used for treatments such as tooth grinding (or cutting), caries removal, and tooth surface cleaning.
  • the amount of powder injection depends on the amount of powder stored in the powder tank and the pressure fluctuation of the supplied pressurized gas. There was a problem that the injection amount of the powder was not stable.
  • the powder is selected according to the purpose of treatment and the shape and position of the treatment site. It is necessary to adjust the injection amount of the body.
  • an object of the present invention is to provide a powder injection device that can be used.
  • the dental treatment powder injection apparatus of the present invention mixes and injects powder used in dental treatment with a pressurized gas.
  • the powder injection device for dental treatment includes a powder tank for storing the powder, a pressurized gas supply connection portion into which the pressurized gas is introduced, and a mixture for mixing the pressurized gas and the powder.
  • the pressurized gas supply connection part and the powder injection part are connected by a hollow tube through the mixing chamber, and the powder tank and the mixing chamber are connected through the powder supply mechanism. Being! RU
  • the powder supply mechanism quantitatively conveys the powder in the powder tank to the mixing chamber.
  • the powder supply mechanism quantitatively conveys the powder in the powder tank to the mixing chamber, the amount of powder stored in the powder tank and the pressurized gas supplied Therefore, the amount of powder injection with the power of the powder injection portion that is hardly affected by the pressure fluctuation of the powder can be stabilized and adjusted.
  • FIG. 1 is a schematic view of a powder injection device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view schematically showing a powder supply mechanism in the powder injection device according to the embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along line III-III in FIG.
  • FIG. 4A shows a powder feeder in a powder injection apparatus according to an embodiment of the present invention. It is the elements on larger scale which showed an example of the crevice formed in the rotating body of a structure.
  • FIG. 4B is a partially enlarged development view showing another example of a recess formed in the rotating body of the powder supply mechanism in the powder injection device according to one embodiment of the present invention.
  • FIG. 4C is a partially enlarged development view showing still another example of the recess formed in the rotating body of the powder supply mechanism in the powder injection device according to one embodiment of the present invention.
  • FIG. 4D is a partially enlarged development view showing still another example of the concave portion formed in the rotating body of the powder supply mechanism in the powder injection device according to one embodiment of the present invention.
  • FIG. 4E is a partially enlarged development view showing still another example of the concave portion formed in the rotating body of the powder supply mechanism in the powder injection device according to the embodiment of the present invention.
  • FIG. 5 is a cross-sectional view showing an example of a clogging prevention mechanism in the powder injection device according to one embodiment of the present invention.
  • FIG. 6 is a cross-sectional view showing another example of the clogging prevention mechanism in the powder injection device according to the embodiment of the present invention.
  • the powder supply mechanism includes a rotating body and a drive source for rotating the rotating body.
  • a plurality of recesses are formed on the outer peripheral surface of the rotating body, and the powder in the powder tank is stored in the plurality of recesses of the rotating body, and the rotating body is It is preferably conveyed to the mixing chamber by rotating.
  • each concave portion accurately measures the powder, the injection amount of the powder from the powder injection unit is further stabilized.
  • the amount of powder injected from the powder injection unit can be easily adjusted.
  • pressurized gas supply connection portion and the powder tank are connected by a hollow tube so that the inside of the powder tank is pressurized!
  • the powder supply mechanism can prevent the powder from flowing back into the mixing chamber because the pressure in the mixing chamber is higher than that in the powder tank during powder injection, and the powder can be prevented from flowing back into the mixing chamber.
  • the body can be supplied stably. As a result, the powder injection amount from the powder injection unit is further stabilized.
  • a liquid discharge hole from which liquid is discharged is provided at the tip of the powder injection unit in addition to the powder injection hole through which the powder is injected.
  • the dental treatment powder injection device of the present invention further includes a clogging prevention mechanism for removing the powder in the plurality of concave portions of the rotating body.
  • each concave portion can always accurately measure the powder, so that the amount of powder injected from the powder injection portion is stable over a long period of time.
  • FIG. 1 is a schematic view of a powder injection device according to an embodiment of the present invention.
  • the powder injection device of the present embodiment includes a powder tank 1 for storing powder, a pressurized gas supply connection portion 2 into which pressurized gas is introduced, a pressurized gas and a powder.
  • a mixing chamber 5 for mixing the body, a powder injection unit 8 for injecting a mixture of powder and pressurized gas, and a powder supply mechanism 6 for supplying the powder to the mixing chamber 5 are provided.
  • the powder tank 1 is a container for storing powder.
  • the volume is preferably capable of storing the powder needed for at least one treatment. Specifically, it is preferable that the powder can be stored in 20 to: LOO gram, more preferably 30 to 50 gram.
  • the lower part of the powder tank 1 has a funnel shape so that the stored powder moves to the powder supply mechanism 6 disposed underneath.
  • a mechanism may also be provided in the powder tank 1 for applying vibration to an external force so that the powder tank 1 moves to the powder supply mechanism 6 without remaining in the powder tank 1.
  • a means for confirming the remaining amount of powder in the powder tank 1 may be provided. Examples of such means include a window through which the inside of the tank can be visually observed, or a non-contact sensor that measures the position of the upper surface of the powder in the powder tank 1.
  • the powder is blown onto the tooth (air blast) together with pressurized gas for treatment such as tooth grinding (or cutting), removal of carious parts of the tooth, and cleaning of the tooth surface.
  • pressurized gas there is no harm to the air or the human body, and a gas can be used. Air is preferred. More preferably, it is dry air from which moisture that causes clogging of the powder in the hollow tube is removed. In the following description, an example in which air is used as a pressurized gas will be described for easy understanding, but the present invention is not limited to this.
  • the pressurized gas is introduced into the powder injection device from the pressurized gas supply connection portion 2.
  • a well-known compressor or a cylinder storing liquid gas is connected to the pressurized gas supply connection 2.
  • the hollow tube 21 connected to the pressurized gas supply connection portion 2 is branched into two hollow tubes 22 and 24 by the T-shaped connection portion 4.
  • One hollow tube 22 is connected to the mixing chamber 5, and the other hollow tube 24 is connected to the powder tank 1.
  • the mixing chamber 5 has a space for uniformly diffusing the powder in the pressurized gas.
  • the pressurized gas is supplied from the pressurized gas supply connection 2 to the mixing chamber 5 through the hollow tubes 21 and 22.
  • the powder is supplied from the powder tank 1 to the mixing chamber 5 through the powder supply mechanism 6.
  • the pressurized gas and the powder supplied to the mixing chamber 5 are mixed in the space in the mixing chamber 5.
  • a mixture of the pressurized gas and the powder uniformly dispersed therein is sent to the powder injection unit 8 through the hollow tube 23.
  • the shape of the mixing chamber 5 is not particularly limited as long as the powder can be dispersed in the pressurized gas, and may be, for example, a tank shape.
  • a T provided for connecting the hollow tubes 22 and 23 and the powder supply mechanism 6 between the hollow tubes 22 and 23 connecting the pressurized gas supply connection 2 and the powder injection unit 8. It may be a letter-shaped connecting pipe.
  • the powder supply mechanism 6 is a means that is disposed between the powder tank 1 and the mixing chamber 5 and quantitatively sends the powder stored in the powder tank 1 to the mixing chamber 5.
  • the powder supply mechanism 6 of the present embodiment includes a housing 18 having a cylindrical space and a rotating body for powder conveyance provided in the space so as to fill the space. 12 and a variable speed motor 7 as a drive source for rotating the rotating body 12.
  • the rotating body 12 is supported by a pair of bearings 11 so that the rotating body 12 can rotate smoothly in the housing 18.
  • the rotating body 12 and the motor 7 are connected via a coupling 10.
  • the rotating body 12 has a substantially cylindrical shape, and a plurality of recesses 13 independent of each other are formed on the outer peripheral surface thereof.
  • the powder in the powder tank 1 installed on the upper side with respect to the powder supply mechanism 6 falls into the recess 13 and is stored.
  • Rotating body 12 When rotating in the negative direction, the powder stored in the recess 13 rotates with the rotating body 12 and is conveyed to the mixing chamber 5.
  • a pair of ring seals 9 are provided between the pair of bearings 11 and the region where the plurality of recesses 13 are formed so that the powder from the powder tank 1 is not mixed into the pair of bearings 11 during conveyance. Is provided.
  • arrow 41 indicates the moving direction of the powder
  • arrow 42 indicates the moving direction of the pressurized gas.
  • an arrow 12a indicates the rotation direction of the rotating body 12.
  • the powder injection unit 8 is a handpiece held by an operator's hand when the operator treats a patient.
  • the powder injection unit 8 is connected to the mixing chamber 5 and the hollow tube 23.
  • a powder injection hole (not shown) for injecting a mixture of pressurized gas and powder obtained in the mixing chamber 5 is formed at the tip of the powder injection unit 8.
  • the shape of the powder injection unit 8 is not particularly limited, but may be a pencil shape, for example.
  • the hollow tube 23 connecting the apparatus main body and the powder injection unit 8 and the hollow tube 25 described later have a soft material force.
  • the apparatus main body and the hollow tube 23, and the hollow tube 23 and the powder injection unit 8 are preferably all connected by a detachable connector. Thereby, after using the powder injection device, the main body force hollow tube 23 and the powder injection portion 8 can be separated and cleaned individually.
  • Powder injection from the powder injection unit 8 is performed as follows.
  • the pressurized gas introduced from the pressurized gas supply connection 2 is sent to the mixing chamber 5.
  • the motor 7 is rotated at a predetermined constant rotation speed, and the rotating body 12 is rotated through the coupling 10.
  • the powder in the powder tank 1 is stored in a recess 13 formed on the outer periphery of the rotating body 12.
  • the powder stored in the recess 13 is sent to the mixing chamber 13 as the rotating body 12 rotates.
  • the pressurized gas and the powder respectively sent to the mixing chamber 5 are mixed in the mixing chamber 5.
  • the powder mixed in the pressurized gas is sent to the powder injection unit 8 by the pressure of the pressurized gas, and is injected from the powder injection hole at the tip thereof.
  • the rotating body 12 rotates at a constant rotational speed, and each recess 13 formed in the rotating body 12 accurately measures the powder.
  • the powder supply mechanism 6 quantitatively conveys the powder in the powder tank 1 to the mixing chamber 5. Therefore, it is almost unaffected by the amount of powder stored in the powder tank 1 and the pressure of the pressurized gas supplied to the mixing chamber 5 and the air volume.
  • a substantially constant amount of powder can be injected from the powder injection unit 8. Further, by adjusting the rotational speed of the variable speed motor 7 that drives the rotating body 12, the amount of powder injected from the powder injection unit 8 can be easily adjusted according to the purpose of use.
  • the pressurized gas is sent to the powder tank 1 through the T-shaped connecting portion 4 and the hollow tube 24, so that the inside of the powder tank 1 is pressurized. Therefore, it is possible to prevent the powder tank 1 from flowing into the powder tank 1 from the mixing chamber 5 due to a lower pressure in the powder tank 1 than in the mixing chamber 5 when the powder is to be injected. Since the pressurized gas sent to the powder tank 1 pushes down the powder in the powder tank 1 toward the powder supply mechanism 6, the powder is sufficiently filled in the recess 13 of the rotating body 12. Accordingly, since the powder accurately measured by each recess 13 is stably conveyed to the mixing chamber 5, the amount of powder injected from the powder injection unit 8 is further stabilized.
  • An injection pressure adjusting mechanism for adjusting the flow rate (or pressure) of the pressurized gas may be provided! /.
  • an injection pressure adjusting mechanism 19 can be provided in the hollow tube 21.
  • a normal pressure adjusting valve can be used as the injection pressure adjusting mechanism 19.
  • the injection pressure of the gas injected from the powder injection unit 8 ie, the velocity of the powder
  • the amount of powder mixed in the pressurized gas is determined by the powder supply mechanism 6, the amount of powder does not change even if the injection pressure from the powder injection unit 8 is changed. Therefore, by providing the injection pressure adjusting mechanism 19 in addition to the powder supply mechanism 6, the surgeon can independently control the gas injection pressure and the powder injection amount from the powder injection unit 8 according to the treatment purpose. Can be adjusted.
  • the powder injection unit 8 preferably has a liquid discharge hole (not shown) through which liquid is discharged at the tip thereof.
  • the liquid is introduced from the liquid supply connection unit 3 and sent to the powder injection unit 8 through the hollow tube 25.
  • water can be used as the liquid.
  • the hollow tube 25 may be provided with a liquid adjusting mechanism 26 for adjusting the flow rate (or pressure) of the liquid.
  • a normal pressure adjusting valve can be used as the liquid adjusting mechanism 26 for example.
  • the supply of powder to the powder injection unit 8 is adjusted independently by the powder supply mechanism 6, the supply of pressurized gas is adjusted by the injection pressure adjustment mechanism 19, and the supply of liquid is adjusted independently by the liquid adjustment mechanism 26. can do. Therefore, for example, after treatment with powder injection, the powder supply is stopped. Then, the liquid can be discharged while injecting the pressurized gas to perform oral cleaning.
  • the piping for conveying the powder and the pressurized gas and the piping for conveying the liquid are independent, the powder and the pressurized gas from the powder injection hole, the liquid from the liquid discharge hole, It is preferable that the powder, the pressurized gas, and the liquid are mixed after each injection. As a result, the powder does not touch the liquid until it is ejected from the powder ejection hole, so that when the hygroscopic powder is used, the powder is prevented from being clogged in the hollow tube. be able to
  • the tip part of the powder injection part 8 in which the powder injection hole and the liquid discharge hole are formed has various parts with different shapes. Preferred to be interchangeable ,.
  • FIG. 4A to FIG. 4E are views showing a part of the recess 13 formed on the outer peripheral surface of the rotating body 12 of the powder supply mechanism 6 developed on a flat surface.
  • an arrow 12b indicates the moving direction of the outer peripheral surface when the rotating body 12 rotates.
  • the shape and arrangement of the recess 13 are not particularly limited as long as the powder can be stored therein.
  • the shape of the recess 13 in plan view may be, for example, the circular shape shown in FIGS. 4A to 4C, the long hole shape (groove shape) shown in FIGS. 4D and 4E, or other than these. It may be a shape.
  • reces row there is only one row of recesses 13 (hereinafter referred to as “recess row”) along the moving direction 12b of the outer peripheral surface of the rotating body 12 (see FIGS. 4A, 4D, and 4E). It may be a plurality (see FIGS. 4B and 4C). It is preferable to consider the shape and arrangement of the recess 13 so that the amount of the powder conveyed to the mixing chamber 5 does not vary with time. That is, when the circular recesses 13 are arranged in one row as shown in FIG. 4A, the positions in the movement direction 12b of the recesses 13 are coincident between the plurality of recess rows as shown in FIG. 4B, and FIG.
  • the powder supply mechanism 6 is provided with a clogging prevention mechanism for removing the powder remaining in the recesses 13.
  • FIG. 5 is a cross-sectional view showing an example of a clogging prevention mechanism.
  • a rod 31 having a brush 32 attached to the tip thereof is inserted into a through hole 18a provided in the nose / housing 18 of the powder supply mechanism 6.
  • the rod 31 is pushed in to bring the brush 32 into contact with the rotating body 12.
  • the brush 32 comes into contact with the inner surface of the recess 13
  • the powder adhering to the inner surface can be removed.
  • a recess 18b is formed in the vicinity of the opening of the through hole 18a on the inner wall surface of the nosing 18 so that the brush 32 can be freely held by the rotating body 12 rotating in the direction of rotation 12a.
  • the removed powder falls downward through a groove-like recess 18c formed on the inner wall surface of the housing 18.
  • the rod 31 is supported by a ring seal 33 so that powder and pressurized gas do not leak outside through the through hole 18a.
  • FIG. 6 is a cross-sectional view showing another example of the clogging prevention mechanism.
  • a compressed air source (not shown) is connected to a through hole 18 a provided in the housing 18 via a valve 35.
  • the compressed air 36 is jetted into the housing 18 in a pulsed manner by opening and closing the valve 35. Since the compressed air 36 is intermittently blown onto the inner surface of the recess 13, the powder adhering to the inner surface can be removed. The removed powder falls downward through a groove-like recess 18 c formed on the inner wall surface of the housing 18.
  • the pressurized gas is supplied from a pressurized gas supply source such as a compressor installed outside the powder injection apparatus or a cylinder storing liquefied gas via the pressurized gas supply connection unit 2. Installed in the device.
  • a pressurized gas supply source may be provided in the powder injection apparatus.
  • the following problems may occur when using pressurized gas from a pressurized gas supply source installed outside the powder injection device. The For example, the powder injection pressure from the powder injection unit 8 is limited by the capability of the pressurized gas supply source.
  • the powder from the powder injection unit 8 depends on the amount of pressurized gas used by the other device. Body injection pressure fluctuates.
  • the powder injection device of the present invention includes a pressurized gas supply source, these problems do not occur, and the degree of freedom in setting the powder injection pressure from the powder injection unit 8 is improved. Moreover, fluctuations in the injection pressure can be prevented.
  • the pressurized gas supply connecting portion 2 means a connector for connecting the pressurized gas supply source in the powder injection apparatus and the hollow tube 21.
  • the liquid is introduced into the apparatus via the liquid supply connection 3 as well as the liquid supply source such as a water supply, a liquid tank and a pump installed outside the powder injection apparatus.
  • the present invention is not limited to this, and the liquid supply source may be provided in the powder injection apparatus.
  • the following problems may occur when using liquid from a liquid supply source installed outside the powder injection device.
  • the amount of liquid discharged from the powder injection unit 8 varies depending on the amount of liquid used by the other device. To do.
  • the powder injection device of the present invention includes a liquid supply source. That is, a stable discharge amount of liquid can be obtained. It is also possible to use liquids that have been specially adjusted for powder injection devices. Thus, for example, using a liquid having at least one of a disinfecting action, a sterilizing action, and an analgesic action as a liquid, the tooth is ground (or cut) by powder injection, the carious site of the tooth is removed, When performing treatments such as cleaning Z and tooth surfaces, it is possible to simultaneously perform at least one of disinfection, sterilization, and analgesia.
  • the operator cannot obtain information such as vibration from the powder injection unit 8 held in the hand at the time of grinding, and the amount of grinding cannot be felt sensibly. Therefore, it may be difficult to cut the entire treatment site into a layer having a certain thickness.
  • a liquid supply source in the powder injection device supply the liquid from the liquid supply source to the powder injection unit 8 in a pulse shape, and obtain a period in which no mist is generated by the liquid.
  • the operator grinds the treatment site, the operator visually recognizes the fog generated at a constant cycle, and moves the powder injection unit 8 in synchronization with the generation cycle of the fog.
  • the entire treatment site can be scraped into a layer with a certain thickness.
  • the field of use of the present invention is not particularly limited, but is used as a powder injection device used for treatments such as tooth grinding (or cutting), tooth caries removal, and tooth surface cleaning. be able to.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un dispositif à jet de poudre pour traitement dental fourni avec un réservoir de poudre (1) destiné à contenir la poudre, une jonction (2) permettant d’injecter un gaz pressurisé, une chambre de mixage (5) pour mélanger le gaz à la poudre, une buse à jet (8) pour injecter le mélange de poudre et de gaz sous pression, et un mécanisme d’alimentation de la poudre (6) pour introduire cette dernière dans la chambre de mixage (5). La jonction (2) et la buse à jet de poudre (8) sont connectées à travers la chambre de mixage (5) par des tuyaux creux (21, 22, 23) tandis que le réservoir de poudre (1) et la chambre de mixage (5) sont connectés par le mécanisme d’alimentation de la poudre (6). Ce dernier mécanisme (6) transfère quantitativement la poudre retenue dans le réservoir (1) dans la chambre de mixage (5). Suite à cette invention, la poudre peut être injectée de manière régulière depuis la buse (8) et en quantité constante substantiellement indépendante de la quantité de poudre existant dans le réservoir (1) ou de la pression du gaz pressurisé, et la quantité de poudre injectée peut être contrôlée.
PCT/JP2006/313593 2005-09-26 2006-07-07 Dispositif à jet de poudre pour traitement dental Ceased WO2007034612A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-276967 2005-09-26
JP2005276967A JP2008295466A (ja) 2005-09-26 2005-09-26 歯科治療用粉体噴射装置

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Publication Number Publication Date
WO2007034612A1 true WO2007034612A1 (fr) 2007-03-29

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PCT/JP2006/313593 Ceased WO2007034612A1 (fr) 2005-09-26 2006-07-07 Dispositif à jet de poudre pour traitement dental

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WO (1) WO2007034612A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010088891A (ja) * 2008-10-10 2010-04-22 W & H Dentalwerk Buermoos Gmbh 医療用、特に歯科医療用の処置装置
CN103192324A (zh) * 2013-04-26 2013-07-10 北京科技大学 一种研磨抛光机的磨料自动添加装置
US9662180B2 (en) 2012-12-17 2017-05-30 3M Innovative Properties Company Device for dispensing a dental material with locking mechanism
US9888980B2 (en) 2012-12-17 2018-02-13 3M Innovative Properties Company Nozzle head, hand piece and powder jet device for applying a dental material
US9974629B2 (en) 2012-12-17 2018-05-22 3M Innovative Properties Company Powder jet device for dispensing dental material
JP2023062489A (ja) * 2021-10-21 2023-05-08 株式会社マルテー大塚 マルチブラスト装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1664369A (en) * 1924-06-18 1928-03-27 Maurer Jakob Process and device for operating upon human teeth
JPH0733556U (ja) * 1993-12-10 1995-06-20 株式会社イナックス 研磨剤の定量供給装置
JP2000042001A (ja) * 1998-05-26 2000-02-15 Sinto Brator Co Ltd ウ蝕除去材及びウ蝕除去装置
JP2000052253A (ja) * 1998-08-10 2000-02-22 Minoru Yoshida ブラスト装置
JP2002028167A (ja) * 2000-07-14 2002-01-29 Sinto Brator Co Ltd 歯科用ブラスト装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1664369A (en) * 1924-06-18 1928-03-27 Maurer Jakob Process and device for operating upon human teeth
JPH0733556U (ja) * 1993-12-10 1995-06-20 株式会社イナックス 研磨剤の定量供給装置
JP2000042001A (ja) * 1998-05-26 2000-02-15 Sinto Brator Co Ltd ウ蝕除去材及びウ蝕除去装置
JP2000052253A (ja) * 1998-08-10 2000-02-22 Minoru Yoshida ブラスト装置
JP2002028167A (ja) * 2000-07-14 2002-01-29 Sinto Brator Co Ltd 歯科用ブラスト装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010088891A (ja) * 2008-10-10 2010-04-22 W & H Dentalwerk Buermoos Gmbh 医療用、特に歯科医療用の処置装置
US9662180B2 (en) 2012-12-17 2017-05-30 3M Innovative Properties Company Device for dispensing a dental material with locking mechanism
US9888980B2 (en) 2012-12-17 2018-02-13 3M Innovative Properties Company Nozzle head, hand piece and powder jet device for applying a dental material
US9974629B2 (en) 2012-12-17 2018-05-22 3M Innovative Properties Company Powder jet device for dispensing dental material
CN103192324A (zh) * 2013-04-26 2013-07-10 北京科技大学 一种研磨抛光机的磨料自动添加装置
JP2023062489A (ja) * 2021-10-21 2023-05-08 株式会社マルテー大塚 マルチブラスト装置
JP7776072B2 (ja) 2021-10-21 2025-11-26 株式会社マルテー大塚 マルチブラスト装置

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