WO2002038070A1 - Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence - Google Patents

Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence Download PDF

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Publication number
WO2002038070A1
WO2002038070A1 PCT/EP2000/011085 EP0011085W WO0238070A1 WO 2002038070 A1 WO2002038070 A1 WO 2002038070A1 EP 0011085 W EP0011085 W EP 0011085W WO 0238070 A1 WO0238070 A1 WO 0238070A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibration generator
handpiece according
medical handpiece
coupling body
medical
Prior art date
Application number
PCT/EP2000/011085
Other languages
German (de)
English (en)
Inventor
Rainer Hahn
Uwe Grotz
Michael Thoms
Original Assignee
Dürr Dental GmbH & Co. KG
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 Dürr Dental GmbH & Co. KG filed Critical Dürr Dental GmbH & Co. KG
Priority to PCT/EP2000/011085 priority Critical patent/WO2002038070A1/fr
Priority to EP00979543A priority patent/EP1331896A1/fr
Priority to AU2001216993A priority patent/AU2001216993A1/en
Publication of WO2002038070A1 publication Critical patent/WO2002038070A1/fr

Links

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
    • A61C1/07—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 vibratory drive, e.g. ultrasonic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • 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
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
    • A61C1/148—Non-rotating tool holders, e.g. vibrating, oscillating, nutating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/20—Power-driven cleaning or polishing devices using ultrasonics
    • 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
    • A61C3/03—Instruments operated by vibration

Definitions

  • Medical preferably dental handpiece for the treatment of tissues with preferably high-frequency mechanical vibrations
  • the present invention relates to a medical, preferably dental, handpiece for treating tissues with preferably high-frequency mechanical vibrations according to the preamble of claim 1.
  • a dental handpiece of the type mentioned is described in DE 42 38 384 AI.
  • the vibration generator is housed in the handle section. It drives an annular deflection body, which works in resonance and deflects the vibrations of the vibration generator, which run parallel to the longitudinal axis of the handle section of the handpiece, into the output direction desired perpendicular to the handle axis for ergonomic and medical reasons, along which the tool is then moved axially. This is maintained in good visibility in the vicinity of the tool.
  • Another resultant advantage of the present invention is that all functional parts of the Handpiece, that is, the entire drive unit, are accommodated in the head section, so that easy access and quick interchangeability are ensured in the event of maintenance.
  • Coupling body increases the amplitudes generated by the vibration generator. This is made possible by the coupling body specified in claim 2.
  • the arrangement according to the invention of the vibration generator and the coupling body of the medical handpiece according to claim 3 is particularly space-saving.
  • the vibrator specified in claim 4 is easy to build. So he can e.g. consist of several axially packed disc-shaped piezo elements.
  • the development of the invention according to claim 6 has the advantage that the vibration generator produced in this way is stable, which is advantageous when the vibration generator is arranged close to the tool.
  • the forms of a corresponding coupling body specified in claim 7 fit particularly well with the forms of the vibration generator specified in claim 6. They determine the direction of movement of the tool in two spatial directions without torsional load on the coupling body.
  • the amplitude that can be achieved on the tool is easily doubled by the design of the medical device.
  • an inert mass is provided between the rear coupling body and the housing of the handpiece, via which the rear coupling body is supported on the housing.
  • the development of the invention according to claim 11 has the advantage that the arrangement formed from vibration generator, coupling bodies and mass is safely performed under strong lateral loads. At the same time, the parts mentioned form an easily assembled and interchangeable unit.
  • the vibrator specified in claim 13 is very stable and can generate relatively large vibration amplitudes.
  • the electromagnet of the electromagnetic actuator is fixed to the housing, according to claim 14, the heat generated in it can be dissipated well.
  • the mass of the oscillating system can be kept small, which enables higher oscillation frequencies.
  • the formation of the vibration generator according to claim 15 is inexpensive and stable.
  • the movement of the membrane is facilitated by the vent opening according to claim 18.
  • cooling gas can flow in or out through them.
  • Amplitude amplification can be achieved by resonance operation.
  • the sound emitted to the air is lower in the coupling body specified in claim 22, so that the medical handpiece designed in this way operates more quietly, provided the frequency of the vibration generator is in the audible range and the energy losses to the air are smaller.
  • an alternative embodiment of a medical handpiece is specified, which does not require a coupling body.
  • This medical handpiece is particularly simple and therefore inexpensive and easy to maintain.
  • the achievable vibration amplitude on the tool of the medical handpiece of claim 23 is particularly large.
  • Figure 1 an axial section through the head section and an adjacent neck section of a first embodiment of a dental
  • Figure 2 is an enlarged side view of the vibration generator and a coupling body of Figure 1;
  • FIG. 3 shows an enlarged side view of the vibration generator from FIG. 1 with an alternative coupling body
  • Figure 4 a view similar to Figure 1, in the Head portion and an adjacent neck portion of a second embodiment of a dental handpiece is shown;
  • Figure 5 is a perspective view of a first embodiment of a plate-shaped vibration generator
  • Figure 6 is a perspective view of a second embodiment of a plate-shaped
  • Figure 7 is a perspective view of a third embodiment of a plate-shaped vibration generator
  • Figure 8 shows a longitudinal section through the drive unit of a third embodiment of a dental handpiece
  • FIG. 9 a longitudinal section through the drive unit of a fourth exemplary embodiment of a dental handpiece
  • Figure 10 is a view similar to Figure 1 showing a head portion and a neck portion of a fifth embodiment of a dental handpiece.
  • Figure 11 is a view similar to Figure 9, but showing a modified mounting of the tool collet.
  • a dental handpiece bears the overall reference number 10.
  • the handpiece 10 comprises a housing 11 with an elongated tubular neck section 12, which is carried by an essentially coaxial handle section (not shown in the drawing), which is not shown.
  • a head section 14 is formed on the neck section 12 and has an opening 18 delimited by a cylindrical connecting piece 16, the longitudinal axis of which extends approximately perpendicular to the longitudinal axis of the neck section 1.2.
  • the longitudinal axis of the opening 18 can also be set at an angle other than 90 to the longitudinal axis of the neck section 12, the overall setting angle preferably being in the range between 60 and 90.
  • a drive unit 20 is arranged in the head section 14. This comprises a rod-shaped package of axially stacked piezoelectric disks (without reference numerals) which are axially clamped together. The package forms a vibrator 22.
  • the vibration generator 22 can also have a monolithic peizoelectric block, which then need not have a bias.
  • the drive unit 20 further comprises two identical coupling bodies 26 and 28, which are each arranged above the opposite upper and lower longitudinal sides of the vibration generator 22.
  • the coupling bodies 26 and 28 each consist of an elongated spring clip with connecting sections 30 at its two ends and an interposed one, bent away from the vibration generator 22 and in each case via a transition section 31 molded bending section 32 (for reasons of clarity, only the sections of the lower coupling body 26 in FIG. 1 are provided with reference numerals).
  • the bending section 32 can be open or closed (pot shape), a ventilation hole being provided if necessary.
  • the bending section 32 can also be bent toward the vibration generator 22. This is shown in Figure 3.
  • Spring bronze or spring steel is particularly suitable as the material for the coupling bodies 26 and 28.
  • the connection sections 30 lie flat on the respective longitudinal side of the vibration generator 22 and are clamped to this via a clamping ring (not shown) or soldered or glued to it.
  • a clamping sleeve 34 is fastened to the bending section 32 of the coupling body 26, in which a tool 38 can be clamped via a clamping nut 36.
  • the vibration generator 22 is detachably connected to the housing 11 of the handpiece 10 by way of bearing journals lying outside the sectional plane, which are arranged on both longitudinal sides of the vibration generator 22 in its axial center. In this way, the drive unit 20 is detachably held in a simple manner in the opening 18 in the head section 14 of the handpiece 10.
  • the sockets 44 and 46 are connected by cables 48 and 50 which run through the neck section 12 to an operating unit, not shown in the figure, which provides alternating current with an ultrasound frequency (possibly also a hearing frequency or infrasound frequency).
  • the neck section 12 also carries a nozzle 52 which is directed towards the tip of the tool 38 and is supplied with working fluid containing abrasive material via a hose 54 which likewise leads through the neck section 12 to the operating unit.
  • working fluids are e.g. Water or aqueous solutions of active substances.
  • a lamp 56 is also present in the neck section 12, likewise directed towards the tip of the tool 38, from which connection cables 58 also lead to the operating unit.
  • the oscillation generator 22 in this exemplary embodiment is not in the form of a rod but in the form of a circular disk (cf. FIG. 5). Accordingly, the two coupling bodies 26 and 28 are not bow-shaped but rather plate-shaped parts, which are also connected at their circumferential edge to the vibration generator 22 in one of the ways described above Have connection section 30, a transition section 31 and a bending section 32.
  • a fully cylindrical counter-mass 60 is fastened to the bending section 32 of the coupling body 28 located in FIG. 4.
  • Their outer surface is connected (e.g. soldered, glued or screwed) to the inner outer surface of a pot-like holder 62 which is open in the tool direction in a manner not shown in the figure. Pressing is also possible for the connection.
  • the lower end of the holder 62 extends beyond the counter mass 60 and beyond the vibration generator 22, with a slight play being present between the outer lateral surface of the vibration generator 22 and the inner lateral surface of the holder 62. In this way, an undesired friction-related limitation of the vibration amplitude of the vibration generator 22 is prevented.
  • An opening 63 is provided in an upper end wall 61 of the holder 62.
  • the head section 14 has a conically tapering wall section 64, on the lower one of which An annular disk 66 which defines the opening 18 and partially closes the head section 14 at the bottom is formed on the end.
  • This has said circular central opening 18, the diameter of which is slightly smaller than the diameter of the vibration generator 22.
  • the holder 62 in which the vibration unit 20 is accommodated, is fastened with its lower edge to the annular disk 66 and in this way with the Handpiece 10 connected.
  • the vibration generator 22 is from the ring disk 66 arranged somewhat spaced so that the connecting portion 30 of the lower coupling body 26 does not touch the annular disk 66 during operation.
  • a nozzle 52 Distributed over the circumference of the annular disk 66 are three oblique connecting pieces 70, in each of which a nozzle 52 is introduced for supplying working fluid, in particular a fluid mixed with abrasive agents.
  • the inclination of the nozzle 70 is chosen so that the nozzles 52 are directed towards the front section (eg front third or front half) of the tool 38, where the working liquid impinges at a flat angle, so that the liquid flows as a ring flow on the outer surface of the tool moved to the tip.
  • an opening 71 is also provided, into which the end of a light guide 56 is inserted.
  • the opening 71 which receives the light guide 56, is aligned so that the area of the tip of the tool
  • FIGS. 6 and 7 show further exemplary embodiments of vibration generators 22.
  • the vibration generator in Figure 6 is in contrast to that of Figure
  • the corresponding coupling bodies would also be plate-shaped and round.
  • the vibration generator 22 is square.
  • a corresponding coupling body would then have to be formed in the shape of a bowl with a square base area.
  • FIGS. 8 and 9 show further exemplary embodiments of drive units 20 which can be integrated into the head section 14 of the handpiece 10 and which are not equipped with piezo electrical, but work with electromagnetic vibrators 22.
  • Parts that are functionally equivalent to the exemplary embodiments shown in FIGS. 1 to 7 have the same reference numerals. They will no longer be discussed in detail here.
  • only the drive units 20 are shown, but not the parts of the handpiece 10 surrounding and supporting them.
  • the drive units 20 shown in FIGS. 8 and 9 each also comprise a coupling body 26 designed as a membrane.
  • a tool 38 can be fastened to this via the collet chuck 34, which is only indicated schematically.
  • the vibration generator 22 is designed as an electromagnetic actuator and comprises, in FIG. 8, a pot-shaped housing 72, the longitudinal axis of which is aligned with the longitudinal axis of the tool 38 and which has a circumferential wall 74. In the center of the housing 72 there is a stepped depression 76 which serves as a seat for one U-shaped core 78 with high saturation magnetization (preferably made of a soft magnetic material), around which in turn a magnet coil 80 is wound.
  • the membrane 26 is stretched over the recess delimited by the annular peripheral wall 74 and fastened to the edge of the peripheral wall 74. In the middle, it carries an anchor plate on its side facing the core 78
  • the anchor plate 82 made of a material with high saturation magnetization (preferably made of soft magnetic material).
  • the anchor plate 82 can be made of a permanent magnet material.
  • the anchor plate 82 can be attached to the membrane 26, for example by gluing, riveting, etc. Ge sacrificeen- if necessary, the anchor plate 82 can also be connected to the collet 34 for the tool 38 arranged on the other side of the membrane 26 and the membrane 26 can be clamped between them.
  • Openings 83 can be present in the membrane 26, which serve to reduce the sound radiation from the membrane
  • the magnetic actuator 22 shown in FIG. 9 also comprises a housing 72 with an annular peripheral wall 74 ', the height of which, however, is small compared to the peripheral wall 74 shown in FIG.
  • the housing 72 is made of a permanent magnetic material.
  • the field lines run in the radial direction.
  • annular groove 84 instead of a stepped depression, however, there is an annular groove 84, the longitudinal axis of which is aligned with the axis of the tool 38.
  • a membrane 26 is also stretched over the recess delimited by the peripheral wall 74 ', and a sleeve-shaped coil body 86 with a magnet coil 80 carried by the coil body 86 is fastened on its side facing the housing 72.
  • the diameter and the position of the coil body 86 and the magnetic coil 80 are selected such that these parts can be moved in the slot 84 with little play in the installed position.
  • the space formed between the membrane 26 and the housing 72 can be forced to flow through by a cooling gas (not shown) which can enter and exit through two openings (not shown in the figure) which are provided in the wall delimiting the space.
  • cooling can be brought about by a coolant channel is provided in the housing 72, through which a coolant flows.
  • the handpiece 10 finally shown in FIG. 10 does not require any coupling body.
  • functionally equivalent parts are identified by the same reference numerals as in the previous figures, and only the essential differences from the previous exemplary embodiments are dealt with:
  • a metal plate 88 is cast into its upper boundary wall, to which the one end wall of a piezoelectric oscillation generator 22 is fastened.
  • the vibration generator 22 has a rod shape and is constructed in the same way as that in FIGS. 1 and 4, but its vibration axis is arranged parallel to the axis of movement of the tool 38.
  • the collet 34, to which the tool 38 can be fastened via a clamping nut 36, is directly on the other end wall of the vibration generator
  • the drive unit 20 specified here has a simpler construction and is therefore less expensive to manufacture and less prone to maintenance.
  • the dental x handpiece 10 shown in FIG. 1 and described above works as follows:
  • the vibration generator 22 is controlled via the cables 48 and 50 in such a way that it contracts and expands in its longitudinal axis at high frequency, ie its length at high frequency changed.
  • the distance between the two connection sections 30 of the lower coupling body 26 thus also changes with the same frequency and amplitude.
  • the bending section 32 bends at the same frequency, but a larger amplitude due to the geometric conditions, in the direction perpendicular to the axis of the rod-shaped vibrator 22, and the tool 38 attached to it is thus moved in the direction perpendicular to the axis of the neck section 14.
  • the smaller the rest deflection of the bending section 32 the greater the deflection when the vibration generator 22 is completely contracted. In this way it is possible to arrange the vibration generator 22 in the head section 14 of the handpiece 10 and still use the coupling body 26 to achieve the required amplitudes in the desired direction of the axis of the tool 38.
  • the second exemplary embodiment of a handpiece 10 shown in FIG. 4 works in a similar way:
  • the drive unit 20 is more stable overall and thus the tool 38 is guided more securely in the necessary work orientation.
  • the vibration generator 22 via the upper coupling body 28 and the counterweight 60 and the bracket 62 is attached to the housing 11 of the handpiece 10, the vibration amplitudes of the coupling bodies 26 and 28 add up in the output direction.
  • the overall size of the vibration generator 22 shown in FIG. 4 being substantially the same as the vibration generator 22 shown in FIG. 1, twice the vibration amplitude is achieved on the tool 38.
  • the nozzles 52 distributed over the circumference furthermore enable a particularly uniform supply of the liquid mixed with abrasive, which further improves the treatment result.
  • alternating current flows through the magnetic coil 80 during operation.
  • the armature plate 82 is attracted and repelled by the magnetic coil 80.
  • the spring constant of the membrane 26 and the total mass of the moving parts of the drive unit 20 are so matched to the frequency of the alternating current that they vibrate in resonance.
  • the heat generated in the magnetic coil 80 can be efficiently dissipated through the connection between the core 78 and the metallic housing 72.
  • alternating current flows through the magnet coil 80 connected to the membrane 26.
  • a force is exerted on the magnet coil 80 in cooperation with the permanent magnetic housing 72.
  • the membrane 26 and the tool 38 connected to it are set in vibration, the vibration frequency corresponding to the frequency of the alternating current.
  • the heat induced in the magnet coil is effectively dissipated.
  • damping of the vibratory system can be adjusted, if desired.
  • the total amplitude of the movement of the tool 38 is between 5 ⁇ m and 100 ⁇ m, preferably between 10 ⁇ m and 40 ⁇ m.
  • the frequency with which the tool 38 is moved is preferably in the range from 20 to 30 kHz.
  • the frequency can also be raised above the first-mentioned preferred frequency range, e.g. up to 100 kHz in order to provide sufficient vibration energy through higher frequency, if from geometric
  • the vibration generator 22 according to FIG. 11 differs from that according to FIG. 9 in that a disk-shaped recess 90 is provided on the top and on the bottom of the core 72, the lower one through the membrane 26, the upper one through a membrane 26 ' is covered, which is firm on its edge is connected to the core 72. Between the two recesses 90, a rod-shaped extension 92 of the clamping sleeve 34 extends through a bore 94 of the core 72. At the end of the extension 92, a head 96 is provided which is fixedly connected to the upper membrane 26 'in a similar manner to that shown in FIG Adapter sleeve 34 with the lower membrane 26.
  • the mode of operation of the drive unit according to FIG. 11 is essentially the same as that of the drive unit according to FIG. 9, only the tool is better secured against tilting, since the clamping sleeve 34 is mounted on two axially spaced diaphragms 26, 26 'via its shoulder 92.

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

Abstract

L'invention concerne une pièce à main (10) médicale, de préférence dentaire, permettant de traiter des tissus au moyen d'oscillations mécaniques de préférence haute fréquence. Ladite pièce à main comporte un boîtier (11) constitué d'une partie col (12) et d'une partie tête (14), ledit boîtier contenant un générateur d'oscillations (22). Ledit générateur entraîne un outil (38) par l'intermédiaire d'un élément de couplage (26) logé dans une partie tête (14) de la pièce à main (10), le sens de déplacement dudit outil s'étendant essentiellement perpendiculairement à l'axe longitudinal de la partie col (12). Selon l'invention, le générateur d'oscillations (22) est également logé dans la partie tête (14) de la pièce à main (10).
PCT/EP2000/011085 2000-11-09 2000-11-09 Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence WO2002038070A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/EP2000/011085 WO2002038070A1 (fr) 2000-11-09 2000-11-09 Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence
EP00979543A EP1331896A1 (fr) 2000-11-09 2000-11-09 Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence
AU2001216993A AU2001216993A1 (en) 2000-11-09 2000-11-09 Medical, preferably dental, handpiece for treating tissue with preferably high frequency mechanical vibrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2000/011085 WO2002038070A1 (fr) 2000-11-09 2000-11-09 Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence

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WO2002038070A1 true WO2002038070A1 (fr) 2002-05-16

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PCT/EP2000/011085 WO2002038070A1 (fr) 2000-11-09 2000-11-09 Piece a main medicale, de preference dentaire, destinee au traitement de tissus au moyen d'oscillations mecaniques de preference haute frequence

Country Status (3)

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EP (1) EP1331896A1 (fr)
AU (1) AU2001216993A1 (fr)
WO (1) WO2002038070A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913666B1 (en) 1997-03-21 2005-07-05 Woodwelding Ag Process for anchoring connecting elements in a material with pores or cavities and connecting elements therefor
US7160405B2 (en) 1999-06-18 2007-01-09 Woodwelding Ag Integral joining
US8932337B2 (en) 2001-03-02 2015-01-13 Woodwelding Ag Implants for creating connections to tissue parts, in particular to skeletal parts, as well as device and method for implantation thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133351A (en) * 1957-02-11 1964-05-19 Soundrive Engine Company Method and apparatus for sonic dental drilling
US3488788A (en) * 1968-01-31 1970-01-13 Seymour Robinson Electric ultrasonic toothbrush
US3651576A (en) * 1970-05-18 1972-03-28 Dynamics Corp America Electroacoustic massager for the gums
FR2348014A1 (fr) * 1976-04-14 1977-11-10 Millot Lab Dispositif d'usinage de materiaux durs a outil rotatif, notamment pour l'entrainement des fraises utilisees en dentisterie
DE4238384C1 (de) 1992-11-13 1994-05-11 Erosonic Ag Wattwil Sonotrode für ein Ultraschall-Bearbeitungsgerät
US5546624A (en) * 1991-03-25 1996-08-20 Sonex International Corporation Apparatus to selectively couple ultransonic energy in a therapeutic ultransonic toothbrush
WO1996029023A1 (fr) * 1995-03-17 1996-09-26 Ulrich Breiter Appareil a ultrasons pour enlever la plaque dentaire
US6086369A (en) * 1997-01-13 2000-07-11 Parkell Products, Inc. Ultrasonic dental scaler insert

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133351A (en) * 1957-02-11 1964-05-19 Soundrive Engine Company Method and apparatus for sonic dental drilling
US3488788A (en) * 1968-01-31 1970-01-13 Seymour Robinson Electric ultrasonic toothbrush
US3651576A (en) * 1970-05-18 1972-03-28 Dynamics Corp America Electroacoustic massager for the gums
FR2348014A1 (fr) * 1976-04-14 1977-11-10 Millot Lab Dispositif d'usinage de materiaux durs a outil rotatif, notamment pour l'entrainement des fraises utilisees en dentisterie
US5546624A (en) * 1991-03-25 1996-08-20 Sonex International Corporation Apparatus to selectively couple ultransonic energy in a therapeutic ultransonic toothbrush
DE4238384C1 (de) 1992-11-13 1994-05-11 Erosonic Ag Wattwil Sonotrode für ein Ultraschall-Bearbeitungsgerät
WO1996029023A1 (fr) * 1995-03-17 1996-09-26 Ulrich Breiter Appareil a ultrasons pour enlever la plaque dentaire
US6086369A (en) * 1997-01-13 2000-07-11 Parkell Products, Inc. Ultrasonic dental scaler insert

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913666B1 (en) 1997-03-21 2005-07-05 Woodwelding Ag Process for anchoring connecting elements in a material with pores or cavities and connecting elements therefor
US7160405B2 (en) 1999-06-18 2007-01-09 Woodwelding Ag Integral joining
US7815409B2 (en) 1999-06-18 2010-10-19 Woodwelding Ag Integral joining
US8932337B2 (en) 2001-03-02 2015-01-13 Woodwelding Ag Implants for creating connections to tissue parts, in particular to skeletal parts, as well as device and method for implantation thereof
US8945192B2 (en) 2001-03-02 2015-02-03 Woodwelding Ag Implants for creating connections to tissue parts, in particular to skeletal parts, as well as device and method for implantation thereof
US9216083B2 (en) 2001-03-02 2015-12-22 Woodwelding Ag Implants for creating connections to tissue parts, in particular to skeletal parts, as well as device and method for implantation thereof
US9615872B2 (en) 2001-03-02 2017-04-11 Woodwelding Ag Implants for creating connections to tissue parts, in particular to skeletal parts, as well as device and method for implantation thereof
US9924988B2 (en) 2001-03-02 2018-03-27 Woodwelding Ag Implants for creating connections to tissue parts, in particular to skeletal parts, as well as device and method for implantation thereof

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Publication number Publication date
AU2001216993A1 (en) 2002-05-21
EP1331896A1 (fr) 2003-08-06

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