WO2002026153A2 - Appareil de traitement dentaire sans cable - Google Patents

Appareil de traitement dentaire sans cable Download PDF

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Publication number
WO2002026153A2
WO2002026153A2 PCT/EP2001/011187 EP0111187W WO0226153A2 WO 2002026153 A2 WO2002026153 A2 WO 2002026153A2 EP 0111187 W EP0111187 W EP 0111187W WO 0226153 A2 WO0226153 A2 WO 0226153A2
Authority
WO
WIPO (PCT)
Prior art keywords
treatment device
handpiece
supply part
treatment
coolant
Prior art date
Application number
PCT/EP2001/011187
Other languages
German (de)
English (en)
Other versions
WO2002026153A3 (fr
Inventor
Wolfgang Behringer
Kàroly NAGY
Nadjaf Mougoui
Manfred Franetzki
Original Assignee
Cdi - Centrum Für Dentale Innovationen Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10127519A external-priority patent/DE10127519B4/de
Application filed by Cdi - Centrum Für Dentale Innovationen Gmbh filed Critical Cdi - Centrum Für Dentale Innovationen Gmbh
Publication of WO2002026153A2 publication Critical patent/WO2002026153A2/fr
Publication of WO2002026153A3 publication Critical patent/WO2002026153A3/fr

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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
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/06—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with electric drive
    • 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
    • A61C17/0202—Hand-pieces
    • 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
    • A61C1/0007—Control devices or systems
    • A61C1/0015—Electrical systems
    • A61C1/0023—Foot control
    • 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
    • A61C1/0053—Portable units
    • 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
    • A61C2204/00—Features not otherwise provided for
    • A61C2204/002—Features not otherwise provided for using batteries
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/14—Dental work stands; Accessories therefor
    • A61G15/16—Storage, holding or carrying means for dental handpieces or the like

Definitions

  • the invention relates to a tubeless dental treatment device which has a handpiece which can be coupled to a dental tool and a supply part, the supply part comprising an electrical energy source for a drive motor for the dental tool and / or a coolant device and / or a compressed gas device.
  • a dental treatment device of the type mentioned above is known from US Pat. No. 4,445,860, in which the supply part screwed onto the handpiece contains a liquid gas container which continuously delivers drive gas for a drive motor for a dental tool housed in the head of the handpiece. It is difficult for the dentist or nurse to manipulate the handpiece precisely.
  • a dental treatment device of the type mentioned in which the supply part connected in one piece with the handpiece contains batteries for driving a motor mounted in the handpiece for the dental tool.
  • the treatment device is voluminous and difficult to control with the desired sensitivity during the treatment of the patient.
  • the handpiece known from the document DE-A-35 07 083 also has the same disadvantage, the rear section of which is coupled to batteries and to a coolant reservoir.
  • the dental treatment unit known from US Pat. No. 5,286,192 serves only for the removal of tartar and for the external treatment of the teeth and the oral cavity. It includes a handpiece in which a battery-powered compressor for generating compressed air is housed. This handpiece is also relatively cumbersome due to the compressor and the associated batteries.
  • US Pat. No. 3,109,238 discloses a cordless handpiece with a supply part coupled on the rear, which contains the drive motor for a dental tool and the batteries required for its activation. The handpiece has a blower which supplies cooling air drawn in from the outside to the treatment site on the patient.
  • the supply part is bent transversely relative to the longitudinal axis of the handpiece, a spur gear coupling coupling the output shaft of the drive motor to the drive shaft for the dental tool.
  • the lateral offset of the supply part is a problem. If the dentist grips the supply part by hand, sensitive guidance of the dental tool to and at the treatment site is considerably more difficult. If the dentist grips the handpiece, it is difficult, for example, to drill out root canals.
  • the dental treatment unit known from document US-A-4,173,828 has similar disadvantages.
  • the invention has for its object to facilitate the handling of the handpiece during the treatment of the patient.
  • the supply part and handpiece are arranged on the treatment device in such a way that tilting moments around the handling point are essentially eliminated when the treatment device is used.
  • the fingers of the user of the treatment device are relieved of the weight of the supply part, so that the dental tool can be easily brought to the treatment site and directed in the area thereof without any special effort on the part of the user.
  • a large-volume supply part does not interfere with medical access to the rear part of the oral cavity because its support generally requires a greater distance from the head of the handpiece.
  • the supply part can be axially displaceable with the handpiece be coupled so that the user can fix the supply part on the handpiece so that the supply part rests on the back of the hand.
  • the supply part which is axially displaceable along the handpiece, can be advanced by the user so far in the direction of the head of the handpiece that the supply part lies in the interior of the hand when in use and is supported there.
  • the supply part is not only pivotable axially, but also transversely to the longitudinal axis of the handpiece, so that the user can easily turn the handpiece without any significant effort around its longitudinal axis, the supply part being in position which rests on the hand of the user.
  • Said mobility of the supply part is preferably made possible in such a way that rail-like guides, which may be cross-shaped, are formed on the housing of the handpiece, in which protruding lugs are guided from the supply part, the handpiece housing having an opening for the passage of electrical connecting cables for a Handpiece accommodated drive motor for the dental tool and / or hoses of coolant storage housed in the supply part for water or gas. It is also advisable to make the front part of the handpiece rotatable or rotatable in relation to its rear part, to which the supply part is connected.
  • the supply part can have the shape of an inverted U, the base of the U on the handpiece being held, for example, in the manner mentioned, and the legs of the U encompassing the space between the thumb and index finger of the user from the inside and outside. In this form of the supply part, it rests on the bend between the thumb and forefinger.
  • the controls for the control of the drive motor or for the coolant supply are arranged in one embodiment of the invention on the front part of the handpiece for operation by the first or second middle hand finger; alternatively, at least part of the Operating elements arranged on a supply part housing accessible to the fingers or on a handle protruding therefrom.
  • the supply part is detachably coupled to the rear end of the handpiece via a hose, which comprises electrical cables and supply lines for coolant.
  • the length of the hose is dimensioned such that the supply part can be stored in a pocket of the user's clothing, for example in a pocket of the doctor's coat.
  • the hose is expediently connected to the handpiece via a plug connection. An example of such a connector is described in DE-A-195 20 765.
  • the supply part housing is made of a magnetizable material or has a magnet
  • a holder with an electromagnet can be provided on a tray on which the unused handpiece can be attached or placed on it the supply part can be held when not in use.
  • This embodiment of the invention is also recommended when the supply part can be plugged into the handpiece, i.e. a hose is not available, in which case the dentist only has to move his working hand, which encompasses the handpiece, to the magnet holder in order to hold the supply part in place, and the handpiece separate from the supply part.
  • the electromagnet is expediently electrically coupled to a foot switch, during the actuation of which the electromagnet is so largely demagnetized that the supply part can be removed from it.
  • the housing of the supply part is provided with at least one connecting element, which allows the supply part to be temporarily fixed, for example, on the user's forearm.
  • the connecting element is part of a Velcro fastener, the other part of which is fastened on an elastic band which the user places around his forearm.
  • the connecting element is a radially elastic clip, the two legs of which can grip around the forearm.
  • the invention in all of its embodiments explained above has the advantage that the storage for energy, coolant and compressed air can be dimensioned so that its content is sufficient for one or more treatments or treatment files of one or more patients, with the resulting size and Weight of the supply part no longer needs to be taken into account.
  • all media and the energy source are connected to the handpiece in an ergonomically good and functionally practical manner.
  • the basic principle is the shifting of the necessary weight and volume to parts of the hand or arm of the user, where he feels nothing or much less of the weight and volume of the supply part, in particular he does not have to compensate for any tilting moments. Above all, the tilting moment becomes otherwise Supply part located at the back of the handpiece is drastically reduced. This is done in the following way:
  • the weight and volume are not only held between the thumb and index finger, but the handpiece is designed so that part of the weight also rests on the back of the hand.
  • the handpiece can be connected to the supply part such that it can be moved and rotated or tilted.
  • Control elements can also be attached to this part, e.g. the starter for the engine.
  • the hand-held handpiece contains only motor and gear.
  • a short hose connects it to the supply part on the forearm, which contains the other elements.
  • Coupling devices for the arm and / or treatment station or couplings between the handpiece and armpiece are provided for changing the handpiece.
  • a flexible shaft leads to the supply part on the arm, which also contains the motor and possibly another gear part.
  • an advantageous embodiment of the invention provides that the water reservoir has a cylinder with a displaceable piston or a displaceable membrane.
  • the water reservoir is designed as a bellows, which brings structural advantages.
  • the water reservoir has a container with a flexible wall, which is designed, for example, as a flexible sack.
  • a memory adapts itself to the outer contours of the supply part and collapses when empty. The space available in the supply section can thus be optimally filled.
  • the mentioned configurations of the memory are suitable on the one hand for an embodiment of the handpiece in which the coolant is required by means of a delivery device, for example a pump, and on the other hand for an embodiment in which the coolant is released, for example via a valve, as required.
  • the coolant only has to be stored in the memory.
  • a particularly simple pressurization provides a spring. If the reservoir containing the coolant, for example air, is pressurized in the manner mentioned, the Compressed air can also be used to blow free the cavity or drill to be machined on the patient. In addition, the compressed air can be used to cool the drive motor, the treatment site or to remove precipitation on optical components.
  • All gases are suitable as coolants which, at a pressure of up to about 100 bar, can easily be kept in liquid form in smaller containers of, for example, a few 10 ml at room temperature and are gaseous at 1 bar and room temperature.
  • tetrafluoroethane Frenchin 134a
  • laughing gas or CO 2 come into consideration here.
  • CO 2 is easy to handle, inexpensive and usually already available in the dental practice.
  • the cooling medium has three functions: to cool the drilling site, to remove abrasion, especially from the drilling tool itself (to avoid clogging), and to keep the non-abrasive parts of the drill on the tooth low (lubricate). These three functions can only be achieved with liquid cooling medium. Therefore, the medium must reach the drill in a liquid state.
  • the cooling medium is liquid until immediately before it exits the supply line provided in the handpiece, that is to say is under sufficient pressure there, and exits at the exit point as a liquid jet which is directed toward the drilling point.
  • the beam evaporates after impacting the drilling site. It fulfills the three functions mentioned above. By evaporating on the drill, it cools and also cleans it particularly well.
  • the cooling medium reaches a correspondingly thin and elongated outlet opening (of a few tenths of a millimeter opening cross-section). This is located at the smallest possible distance from the drilling site.
  • a temperature measurement for example using an infrared probe
  • the cooling The amount of medium is controlled in such a way that on the one hand the tooth and the drill are not too cold, so that too much coolant is not supplied, and on the other hand the tooth is not too hot (overcooked), that is to say not too little coolant is provided.
  • the infrared probe is expediently installed in the head of the handpiece and receives the infrared signals (heat radiation) from the drilling area with suitable optics, namely from the immediate vicinity of the drilling point.
  • An alternative is to measure the temperature of the drill, which can be done either optically by infrared scanning or by thermocouple or thermistor. This is the first time that drilling temperature monitoring has been created. Such a temperature monitoring is not possible with the water cooling that has been practiced to date, because the aerosol mist scatters and absorbs the infrared, so the probe cannot look at the drilling site.
  • the handpiece in a preferred embodiment of the invention has a coupling device for filling the memory and / or the functional elements with operating media and / or for charging a memory for electrical energy.
  • a coupling device for filling the memory and / or the functional elements with operating media and / or for charging a memory for electrical energy.
  • Such filling or loading can be carried out in parallel or sequentially by one and the same coupling device.
  • the supply part has a separate coupling for filling the storage and / or the functional elements with operating media and / or for loading a storage for electrical energy.
  • the coupling is designed for coupling the supply part to the transmission and / or to the motor.
  • the coupling is particularly advantageously designed as a universal coupling which, on the one hand, allows the functional elements to be filled or loaded and, on the other hand, allows them to be connected to the transmission and / or the motor.
  • a battery, an accumulator, a capacitor or a comes for the storage for electrical energy Fuel cell into consideration.
  • a receiver for remote control is built into the handpiece, with which the electronic and pneumatic control elements in the handpiece and / or supply part can be wirelessly controlled, for example from a foot switch for the dentist.
  • Reloading or refilling can take place at the treatment center and on the dentist's device, on the assistant's element or on a tray on an existing coupling.
  • a separate device can be provided for refilling or reloading the memory and / or the functional elements. This is preferably set up near the treatment center.
  • a refill and / or recharge device is provided, which is also designed for cleaning and / or for disinfecting and / or sterilizing the handpiece or the gear and / or the supply part.
  • nozzles are arranged in or onto which the motors designed as intermediate members can be plugged in or plugged.
  • control elements push buttons, capacitive or optical elements can be built into the handpiece in a preferred embodiment of the invention. Furthermore, it can preferably be operated via a voice input or via a remote control from a control panel, for example at the treatment station.
  • the remote control is particularly advantageously triggered via one or more foot pedals.
  • position detection can also be provided with respect to the handpiece, via which the handpiece is controlled.
  • Drill head with different ratios and drill thicknesses with collet, light window, coolant and air outlet, gearbox with different ratios / gear ratios and drilling directions, possibly with lamps, electric motor, possibly with lamps, coupling between motor and gearbox, storage for electrical energy, e.g. accumulator (e.g. lithium-ion battery or nickel-carbon battery) or capacitor or fuel cell, storage for coolant, air storage, control electronics for engine, fluidics and remote control, fluidic actuators for metering coolant and air, operating elements, coupling elements to a charging station for electricity, Coolant and air, combined coupling for coupling the gearbox and coupling piece and for loading or refilling operating media and coupling between coupling piece and engine.
  • electrical energy e.g. accumulator (e.g. lithium-ion battery or nickel-carbon battery) or capacitor or fuel cell
  • storage for coolant air storage
  • control electronics for engine fluidics and remote control
  • fluidic actuators for metering coolant and air
  • operating elements coupling elements to
  • FIG. 2 shows a schematic perspective view from below of the treatment device according to FIG. 1;
  • FIG. 3 shows a schematic perspective view according to FIG. 2 after removal of the supply part housing
  • FIG. 9 shows a representation similar to FIG. 8 of another embodiment of a tray
  • FIG. 10 shows an illustration explaining the handling of a treatment device
  • FIG. 11 shows a schematic perspective illustration of a further embodiment of the supply part of a treatment device
  • Fig. 12 is a schematic representation of the head part of another treatment device.
  • the dental treatment device 30 shown in FIGS. 1 to 4 is composed of a handpiece 32 and a supply part 36, which is detachably connected to the rear part 33 of the handpiece 32 via coupling members.
  • the handpiece 32 has a head 31 into which a dental tool such as a drill 5 can be inserted.
  • the supply part 36 contains a plurality of stores, specifically a store for electrical energy in the form of two cells 35, 37 charged with batteries, a store 38 for coolants, for example pressurized water, and a cartridge 34 which contains a pressurized gas, for example compressed air.
  • the cells 35, 37, the memory 38 and the cartridge 34 are fastened along the side edges to the underside 29 of an approximately triangular circuit board 39, on the top 28 of which the electronic control of the treatment device 30, which is not shown, is also accommodated.
  • the board 39 has a central through opening 26 of such a size that the rear part 33 of the handpiece 32 can extend through it at a flat angle of approximately 30 ° to the board plane.
  • the memory 38 is provided with a corresponding opening 27 for the passage of the handpiece 32.
  • the essentially cylindrical rear part 33 protrude two radially opposite hollow pins 22, 24, on which the plate 39 is rotatably mounted about the common axis of the hollow pins 22, 24, this axis extending essentially transversely to the longitudinal axis of the handpiece 32.
  • a drive motor for the dental tool 5 is accommodated in the rear part 33. It receives its drive energy from the cells 35, 37 via electrical lines that pass through the hollow pins 22, 24.
  • the mounting of the hollow pins 22, 24 on the board 39 is carried out in such a way that the supply part 36 can also be moved along the rear part in addition to the pivotability mentioned.
  • the front part 23 of the handpiece 32 is connected to the rear part 33 via a swivel joint indicated at 25, which can also be designed as a swivel plug joint.
  • the front part 23 encloses a gear mechanism, which is coupled to the output shaft of the motor by the swivel joint 25, for driving the dental tool 5.
  • the circuit board 39 encloses a supply part housing 21, which is sealed at the rear with an elastic seal 19 against the rear part 33.
  • the handling point 20 is close to the supply part housing 21.
  • the weights in the latter and in the handpiece 32 are distributed in such a way that there is no tilting moment with respect to the handling point 20 that the user would have to compensate for.
  • the user can change the inclination of the supply part 36 to the handpiece 32, the position of the supply part 36 along the rear part 33 and the rotational position of the front part 23 as desired. He can also choose this change so that the supply part 36 is supported on the back of his hand. This can also be done by a light spring in the supply part or its own weight.
  • the supply part 56 has a different arrangement of its components and a different shape of the supply part housing 41.
  • a rear end plate 47 is fastened to the rear side of the board 59 via spacer bars 44, 45. This creates an intermediate space between the circuit board 59 and the end plate 47, in which electronic and possibly also fluidic components can be accommodated.
  • a coupling piece 54 is provided on the end piece protruding rearward over the end plate 47 of the rear part 53, the meaning of which will be discussed below. Otherwise, there is mobility of the front part 43 relative to the rear part 53 of the handpiece 52 and mobility of the supply part 56 relative to the rear part 53 in the same manner as has been described in connection with the exemplary embodiment according to FIGS. 1 to 4. In contrast, the shape of the supply part housing 41 directed backwards and downwards from the rear part 53 is easier to support on the back of the hand of the user, the handling point 40 being located directly in front of the supply part housing 41.
  • FIG. 7 shows a variant of the exemplary embodiment described with reference to FIGS. 1 to 4, in which a handle 46 extends from the supply part housing 51, on which operating elements, not shown, such as switches or other actuators, are arranged in the access area of the user's fingertips.
  • the handle 46 can also serve to move the supply part housing relative to the rear part.
  • FIG. 8 schematically shows a tray 92 as an essential part of a treatment station, which has on one side 91 with a receptacle 94 for a treatment device, for example the treatment device 50.
  • the user can simply insert the treatment device into the bowl-shaped receptacle 94 as shown.
  • an electrical connecting cable 93 is fastened to an upright rod 95 fastened to the tray 92 and laterally resilient, the plug of which can be inserted at the free end into a socket provided on the supply part.
  • an upright coupling counterpart 96 is attached to the tray 92, which is connected to a pressurized gas source, not shown, and to a pressurized water source.
  • a gas and water pipe each open in the coupling counterpart 96.
  • the user can place the treatment device 50 with its coupling piece 54 on the coupling counterpart 96, so that the memory for compressed gas and coolant in the supply part 56 can be recharged.
  • a U-shaped supply part with a front leg 68, a rear leg 66 and a base part 65 is coupled to the end facing away from the head 61 of a handpiece 62, the rear leg 66 Storage for water and air and the front leg 68 contains a storage for electrical energy (batteries).
  • the supply part 65, 66, 68 is connected at its base part 65 to the handpiece 62, care being taken for suitable bushings for hoses for the flowable media contained in the rear leg 66 and for the electrical connections to the batteries in the front leg 68.
  • An essential aspect of this embodiment of the supply part is that the supply part 65, 66, 68 is supported in the bend between the index finger and thumb of the user's hand gripping the handpiece 62, the front leg 68 of the supply part inside the hand and the rear leg 66 of the supply part lies on the ball of the thumb.
  • a plurality of operating elements 63, 67 protrude from the front housing section of the front leg 68 and can be operated comfortably by the ring finger R and / or the little finger K of the hand gripping the handpiece 62.
  • the supply part 65, 66, 68 is displaceable along the handpiece 62 and the handpiece 62 is rotatable relative to the supply part 65, 66, 68 about the longitudinal axis of the handpiece 62.
  • the embodiment of the treatment device 60 explained above and shown in FIG. 10 can be modified in such a way that the supply part consists only of the leg 68, the base part 65 and the rear leg 66 are therefore omitted.
  • the supply part 68 contains all the memories for the said operating resources as well as the operating elements 63, 67 and is completely taken up by the user's palm with regard to its weight and volume.
  • the handpiece 62 can therefore also be light in this case rotated relative to the supply part 68 and otherwise manipulated in the required manner by the hand of the dentist.
  • the tray 72 attached to a support tube 73 according to FIG. 9 is provided at a treatment place, from whose one end face 71 a retaining bar 74 protrudes.
  • the holding bar 74 is provided with three receiving bays 75, 76, 77, into each of which a handpiece 52 can be inserted.
  • the housing 57 of the supply part 56 either consists of a magnetizable material or, if it consists of a preferred plastic, it is provided with a permanent magnet (not shown) on its top.
  • Extending from the tray is an angularly bent, essentially upright holding tube 78, the free end 79, which rises above the level of the tray 72, carries three electromagnets 81, 82, 83 which are exposed downwards.
  • Each electromagnet is via the holding tube 78 and the support tube 73, each with an associated foot switch in electrical connection, which is in the associated power supply circuit for one of the electromagnets.
  • the electromagnet 81, 82, 83 assigned to the actuated foot switch can be temporarily de-energized by operating a foot switch.
  • the dentist brings the magnetic part of the supply part 56 under one of the electromagnets 81, 82, 83 with the hand that grips the handpiece 52, with the result that the supply part 56 is attached to one of these magnets is.
  • the dentist then pulls the handpiece 52 from the supply part 56 with the same hand and hangs the handpiece in one of the receptacles 75, 76, 77. It is assumed here that the second supply part 58 is integrated into the first supply part 56.
  • the dentist's hand grips the handpiece 52 held ready in one of the receptacles 75, 76, 77, attaches it to the supply part 56 located under one of the electromagnets 81, 82, 83 and excites it associated electromagnet by depressing the foot switch assigned to it.
  • the complete treatment device can then be removed.
  • the embodiment of a dental treatment device 80 shown in FIG. 11 has a handpiece 84 and a supply part 86, which are detachably connected to one another by a hose 85.
  • the hose 85 has at its end facing away from the supply part 86 a coupling piece 89 which can be coupled to a coupling counterpart, not shown in detail, at the end facing away from the head 87 of the handpiece 84.
  • the hand H of the user grips the handpiece 84 in the vicinity of his head 87.
  • the forearm UA of the user is wrapped in a non-slip manner by a sleeve 88, which on its upper side is covered with a not-shown, Velcro extending in the longitudinal direction of the forearm UA, for example, is provided.
  • Another Velcro strip (not shown) is attached to the outside of the housing of the supply part 86 at the bottom. If, as explained above, the supply part 86 is held on one of the electromagnets 81, 82, 83, in order to remove the supply part 86, the user must make the Velcro fastener between the supply part 86 and the cuff 88 and deactivate the associated electromagnet by actuating a foot switch. The supply part can then be easily removed from the holder 79.
  • the treatment device has a drill head 105, from the free annular end face 102 of which, in the example shown, three outflow openings 104, 106, 108 protrude in the form of nozzles with an opening cross section of a few tenths of a millimeter.
  • a receptacle 103 for a dental tool 107, which is a drill here.
  • a drive motor (not shown) for the dental tool 107 is accommodated in the drill head 105 or in the rear parts of the handpiece.
  • an annular optic 109 is installed in the drill head 105, which is connected to electronics housed inside the drill head.
  • Electronics and optics 109 are designed so that they from the drilling site 110 on the tooth 120 absorbs heat radiation, evaluates it and controls the amount of liquid coolant, in this case CO 2 , emitted through the outflow openings 104, 106, 108 according to predetermined parameters as explained at the beginning.
  • the coolant cones discharged from the outflow openings 104, 106, 108 are designated 111, 112, 113, which are directed towards the lower part of the dental tool 107, cool it, clean it and cool the drilling site as evaporating CO 2 .

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un appareil de traitement dentaire sans câble, présentant une pièce à main dentaire qui peut être accouplée à un outil dentaire ainsi qu'un élément d'alimentation. Ce dernier comprend une source d'énergie électrique destinée à un moteur d'entraînement pour l'outil dentaire et/ou une unité de refroidissement et/ou une unité à gaz comprimé. L'objectif de l'invention est de faciliter la manipulation de la pièce à main dentaire pendant le traitement du patient. A cet effet, l'élément d'alimentation et la pièce à main dentaire sont montés sur l'appareil de traitement de façon à pratiquement éliminer, lors de l'utilisation de ce dernier, l'apparition de couples de renversement autour de la zone de manipulation.
PCT/EP2001/011187 2000-09-29 2001-09-27 Appareil de traitement dentaire sans cable WO2002026153A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10048876 2000-09-29
DE10048876.5 2000-09-29
DE10127519A DE10127519B4 (de) 2000-09-29 2001-06-06 Schlauchloses dentales Behandlungsgerät
DE10127519.6 2001-06-06

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WO2002026153A2 true WO2002026153A2 (fr) 2002-04-04
WO2002026153A3 WO2002026153A3 (fr) 2002-06-20

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PCT/EP2001/011187 WO2002026153A2 (fr) 2000-09-29 2001-09-27 Appareil de traitement dentaire sans cable

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524667A3 (fr) * 2011-05-19 2015-04-22 W & H Dentalwerk Bürmoos GmbH Pièce à main médicale, en particulier dentaire, dotée d'un dispositif de mesure de température

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Publication number Priority date Publication date Assignee Title
DE1864407U (de) * 1960-08-27 1962-12-27 Albert Pruefer Zahnaerztliches hand- oder winkelstueck mit antriebsmotor.
US3774773A (en) * 1972-08-14 1973-11-27 B Brent Magnetic medical tool holder stand
US4347450A (en) * 1980-12-10 1982-08-31 Colligan Wallace M Portable power tool
US4445860A (en) * 1982-05-17 1984-05-01 Oehler John H Rechargeable fluid driven dental tool
US4661060A (en) * 1985-02-28 1987-04-28 Kaltenbach & Voigt Gmbh & Co. Dental handpiece
DE19520765A1 (de) * 1994-06-09 1995-12-14 Morita Mfg Dental-Behandlungseinrichtung mit Wurzelkanallängen-Meßfunktion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1864407U (de) * 1960-08-27 1962-12-27 Albert Pruefer Zahnaerztliches hand- oder winkelstueck mit antriebsmotor.
US3774773A (en) * 1972-08-14 1973-11-27 B Brent Magnetic medical tool holder stand
US4347450A (en) * 1980-12-10 1982-08-31 Colligan Wallace M Portable power tool
US4445860A (en) * 1982-05-17 1984-05-01 Oehler John H Rechargeable fluid driven dental tool
US4661060A (en) * 1985-02-28 1987-04-28 Kaltenbach & Voigt Gmbh & Co. Dental handpiece
DE19520765A1 (de) * 1994-06-09 1995-12-14 Morita Mfg Dental-Behandlungseinrichtung mit Wurzelkanallängen-Meßfunktion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524667A3 (fr) * 2011-05-19 2015-04-22 W & H Dentalwerk Bürmoos GmbH Pièce à main médicale, en particulier dentaire, dotée d'un dispositif de mesure de température

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