WO2007014548A2 - Procede pour relier de façon amovible un outil avec un porte-outil de soin dentaire, et liaison entre un outil et un porte-outil de soin dentaire - Google Patents

Procede pour relier de façon amovible un outil avec un porte-outil de soin dentaire, et liaison entre un outil et un porte-outil de soin dentaire Download PDF

Info

Publication number
WO2007014548A2
WO2007014548A2 PCT/DE2006/001329 DE2006001329W WO2007014548A2 WO 2007014548 A2 WO2007014548 A2 WO 2007014548A2 DE 2006001329 W DE2006001329 W DE 2006001329W WO 2007014548 A2 WO2007014548 A2 WO 2007014548A2
Authority
WO
WIPO (PCT)
Prior art keywords
connection
section
opening
fastening
coupling piece
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/DE2006/001329
Other languages
German (de)
English (en)
Other versions
WO2007014548A3 (fr
Inventor
Stefan Neumeyer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP06775770A priority Critical patent/EP1912586A2/fr
Priority to US11/989,782 priority patent/US20090142729A1/en
Publication of WO2007014548A2 publication Critical patent/WO2007014548A2/fr
Publication of WO2007014548A3 publication Critical patent/WO2007014548A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • 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 waves
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/06—Features relating to the removal of tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00477—Coupling

Definitions

  • the invention relates to a method according to the preamble of claim 1. Furthermore, the invention relates to a compound according to the preamble 15th
  • the object of the invention is to provide a method by which an absolutely firm connection of a tool with a handpiece is possible.
  • a method according to claim 1 is formed.
  • a compound is designed according to claim 15.
  • the backup of the tool on the handpiece can be realized in a variety of ways, for example, purely mechanically, for example, by the compound cross-fuse elements by a bayonet and / or thread-like Locking, by a conical thread, over which a locking by turning by a maximum of an angle of 200 °, preferably only by an angle of 120 °, etc.
  • the fuse can also change shape by means of shape-changing elements, especially those that change their shape under the influence of a magnetic field, by temperature influences, etc., for example, elements that change their shape by a bimetallic effect due to temperature influences. Furthermore, such elements can also be used to increase the contact forces in the connection area and / or to change the angle of the taper.
  • measures are preferably taken to achieve a twist-proof connection and / or a connection between the tool and the hand instrument, which ensures a defined positioning of the tool on the handpiece.
  • This can be achieved, for example, by the connection being realized by a plurality of projections or fastening or coupling sections and associated recesses tapering towards the end and / or by the at least one pin-like fastening section tapering towards the end at least on one side
  • Part length has a different cross-section in cross-section, in this case adapted intake or opening.
  • This can be achieved, for example, by the fact that the at least one pin-like attachment portion is provided with at least one extending in the longitudinal direction of this section groove.
  • Fig. 1 u. 2 each in schematic representation and in partial section a handpiece-side coupling piece, together with a dental tool attached to this coupling piece;
  • Fig. 3 is a similar view as Fig. 1, but in another
  • FIG. 4 - 9 very schematically further embodiments of the invention.
  • Fig. 10 is an end view of the coupling portion of the compound of Fig. 9;
  • Fig. 11 is a cross section through the coupling portion in an embodiment of the invention;
  • 1 is a coupling piece provided or formed on a dental handpiece for connecting a dental tool, of which only the shaft 2 is shown in FIG. 1 and which is an electro-mechanical vibration generator, for example for generating vibrations in the region between 5 and 10 kHz or preferably in the ultrasonic range.
  • an electro-mechanical vibration generator for example for generating vibrations in the region between 5 and 10 kHz or preferably in the ultrasonic range.
  • the coupling piece 1 is, for example, the resonance body of an ultrasonic handpiece which is driven by an electromechanical transducer housed in the handpiece, for example by a magnetostrictive transducer for an oscillating movement in the ultrasonic range.
  • the coupling piece has an opening 3 which is open towards an end face of this coupling piece and is coaxially or non-coaxially aligned with the coupling piece formed in a cylindrical manner, for example, on its outer surface, which tapers slightly conically starting from the open side towards the closed end, wherein the opening shown in FIG exaggerated cone angle ⁇ / 2 is approximately in the range between 0.01 - 8 degrees, preferably in the range between 0.5 and 2 degrees.
  • the tool shank 2 is provided with a likewise frusto-conical section 2.1, which is adapted to the opening 3 in terms of diameter, cone angle, etc., so that the tool shank 2 fits with the section 2.1 in the opening 3 is, in particular, even if the made of metal coupling piece 1 and also made of metal or ceramic, for example tool shank 2 have the same temperature.
  • the size of the cone angle is for example adapted to the frequency of the vibrator and also dependent on the materials used.
  • the connection between the coupling piece 1 and the tool or tool shank 2 is all possible by inserting the coupling portion 2.1 in the opening 3 without an axial slipping out of the section 2.1 from the Opening 3 would be feared.
  • the axial length of the conical surfaces used for the connection ie the axial length of the coupling portion 2.1 and also the axial length of this coupling portion receiving opening 3 is at least 0.5 mm and a maximum of 15 mm, for example. It is possible that these conical surfaces are interrupted by paragraphs, so that then the total axial length of the individual conical surfaces in total corresponds to the above values.
  • the conical surfaces to be joined together are suitably surface-treated, namely, for example, polished, for example mirror polished, so that the conical surfaces to be joined together, ie the conical surface of the coupling portion 2.1 and the conical surface or inner surface of the opening 3 are formed very precisely.
  • the conical surfaces are, for example, highly polished and / or rolled in this sense, wherein in addition to a high precision rolling, a compression of the material is achieved at the conical surfaces at least in the surface area.
  • the opening 3 and / or the section 2.1 on its conical surface in a suitable manner, for example by surface roughening, by coating the surfaces with suitable materials which produce a surface roughness, for example also with the nanosheet.
  • suitable materials which produce a surface roughness, for example also with the nanosheet.
  • Technology and / or by introducing grooves, depressions, etc. in the surfaces can be done.
  • the roughness is in turn depending on the frequency of the electromagnetic vibrator and / or the materials used and / or depending on the specific design of the tool in the range between 0.01 .mu.m and 100 // m, with a variety of areas of roughness in Combination are possible, eg between 0.01 and 0.1 .mu.m, between 0.1 to 1, 0 .mu.m, between 1, 0 to 5 .mu.m, between 5.0 to 20 .mu.m, between 20 to 100 .mu.m.
  • this or its opening 3 can be widened by heating according to a special embodiment of the invention, so then after insertion of the section 2.1 in the opening 3 and after the return of the coupling piece 1 by cooling in the normal state of the tool shank 2 and with this the entire tool is particularly firmly connected to the coupling piece 1.
  • the widening of the coupling piece 3 or the local opening is effected by heating the coupling piece 1, for example, with ultrasound, by a coupling piece 1 surrounding an induction current in the coupling piece 1 generating electromagnetic coil 4 or by a heating coil surrounding the coupling piece.
  • a material is then preferably used, which differs from the material of the coupling portion 2.1 and has the largest possible coefficient of thermal expansion. So that the tool can not be used too deeply, a depth stop controls the final position.
  • the coupling piece 1 For the release of the tool 2 and the coupling portion 2.1 from the opening 3, the coupling piece 1 is heated again.
  • the coupling piece 1 consists of a material which has a higher coefficient of thermal expansion than the material of the shaft 2 and the coupling portion 2.1.
  • FIG. 2 shows a coupling piece 1 a which differs from the coupling piece 1 essentially in that the opening 3 is provided with a catch 5 on its open side, specifically in the form of an axis of the opening 3 in the illustrated embodiment concentrically enclosing ring-like projection.
  • the coupling portion 2.1a of the tool shank 2a is provided in this embodiment with an annular collar 6, which in the coupling piece 1 a fixed tool or tool shank 2a is engaged behind by the catch 5.
  • the coupling piece of the opening 3 is expanded to connect the shaft 2a by heating, in such a way that the coupling portion 2.1 a can be pushed with the collar 6 via the catch 5. After cooling of the coupling piece 1 a of the coupling portion 2.1 a not only positively and firmly anchored in the opening 3, but in addition also by the collar 6 engages behind the catch 5.
  • FIG. 3 shows, as a further possible embodiment, a handpiece-side coupling piece 1 b, on which a tapered projection 7 is provided, onto which then the respective tool with its tool shank 2 b or with an opening 8 adapted there to the shape and size of the projection 7 can be put on.
  • the tool or the tool shank 2b is heated prior to fastening, thereby widening the opening 8, so that then after cooling by shrinking an absolutely firm connection between the tool and the coupling piece 1 b is reached.
  • FIG. 4 shows, in a very simplified schematic representation and in side view, the handpiece-side coupling piece 1c together with the tool shank 2c detachably fastened to this coupling piece.
  • a Safety hooks 9 are provided, which bridges the connection area between the coupling piece 1c and the tool shank 2c, ie, on the one hand on the tool shank 2c, for example, is pivotally supported and on the other hand with its other end in the locking state, the coupling piece 1c engages behind a form fit, for example in the region of an annular bead 10th
  • FIG. 5 again shows, in a similar representation as in FIG. 4, the coupling piece 1c and the tool shank 2c, together with a partial representation of a pressing tool 1 1.
  • This is designed, for example, similar to the securing hook 9, in such a way that it engages the tool shank 2c attacking pressing tool 11 for pressing the tool shank or the coupling portion of this tool shank into the conical opening of the coupling piece 1c with a partial surface or with a section 11.1 the bead 10 engages behind, so that when moving the Anpresstechnikmaschinemaschinees 11 in the direction of the axis of the coupling piece 1 c Tool shank 2c corresponding to the arrow B in the
  • Opening of the coupling piece is pressed.
  • a tool 12 for releasing the tool shank 2c from the coupling piece 1c is also shown.
  • This tool 12 cooperates with a portion 12.1 again with the bead 10, in this case with the tool shank 2c facing side of the bead 10, so that in the direction of the arrow C, i. in the direction of the axis of the coupling piece 1 c along the bead 10 moving portion 12.1 according to the arrow D, a force for releasing the tool shank 2 c is exercised.
  • FIG. 6 shows an embodiment in which the transition between the coupling piece 1d and the tool shank 2d is covered by a sleeve 13 made of a rubber-elastic material, for example by a silicone sheath 13.
  • a sleeve 13 made of a rubber-elastic material, for example by a silicone sheath 13.
  • an axially displaceable plunger 14 is provided in this, which are moved over a provided on the outer surface of the coupling piece 1 d manually operable slide 15 can, in such a way that this plunger 14 is moved into the opening 3 of the coupling piece 1 d and thereby releases the tool shank 2 d from the coupling piece.
  • FIG. 7 shows an embodiment in which the releasable connection between the coupling piece 1e and the tool shank 2e is realized by a coupling portion 2e.1, which in turn is formed by a frustoconical projection 16, and by a plurality of further coupling portions 2e.2, which also are each formed by conical projections 17.
  • the projections 17 are offset radially relative to the projection 16 and arranged distributed around the projection 16.
  • the projection 16 is a matched to the shape of this projection frustoconical opening 8 on the coupling piece 1 e and each projection 17 associated with an adapted to the shape of this projection opening 8.1.
  • the projections 17 and the associated openings 8.1 is a torsion-proof or with respect to the angular position about the axis of the pin 16 exactly oriented connection between the tool shank 2e and the coupling piece 1 e possible.
  • FIG. 8 shows an embodiment in which on the turn of a frustoconical projection or pin 20 formed coupling portion 2f.1 an end extension 21 is provided which has a deviating from the circular cross-section and at the bottom of the shape of the pin 20th adapted opening 22 a recess 23 is associated.
  • the cross section of the recess 23 is adapted to the cross section of the extension 21, so that a connection between the tool shank 2f and the coupling piece 1f is possible only in one or more predetermined angular positions.
  • Figures 9 and 10 show an embodiment in which the coupling portion 2g.1 in turn is formed by a frusto-conical pin 25 which has on its mantle or peripheral surface a plurality of each extending in a generating line grooves 26.
  • a recess or Opening 27 is provided, which is adapted in shape to the shape of the pin 25, that is also designed conical and in the grooves 26 has matching projections 28.
  • FIG. 11 shows, in a very schematic representation, a section through a pin 24 forming a coupling section, which in turn is tapered towards its free pin end, but not rotationally symmetrical to a pin axis, so that this pin shape alone and the corresponding shaping the associated, the pin 24 in the connecting trap receiving opening a twist-proof and a unique angular position between the coupling piece on the handpiece and the tool shank ensuring, releasable connection can be achieved.

Landscapes

  • 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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un procédé pour réaliser une liaison amovible entre un élément de connexion d'outil ou une pièce de couplage formé(e) sur un porte-outil de soin dentaire, et la tige d'outil d'un instrument de soin dentaire manuel. Selon l'invention, pour réaliser cette liaison, une section de fixation en forme de tige effilée en direction d'une extrémité libre, est insérée dans une ouverture adaptée à cette section, pratiquée de façon appropriée dans l'autre des éléments à relier.
PCT/DE2006/001329 2005-08-03 2006-07-29 Procede pour relier de façon amovible un outil avec un porte-outil de soin dentaire, et liaison entre un outil et un porte-outil de soin dentaire Ceased WO2007014548A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06775770A EP1912586A2 (fr) 2005-08-03 2006-07-29 Procede pour relier de façon amovible un outil avec un porte-outil de soin dentaire, et liaison entre un outil et un porte-outil de soin dentaire
US11/989,782 US20090142729A1 (en) 2005-08-03 2006-07-29 Method and Releasably Connecting a Tool to a Dental Handpiece and Connection Between the Tool and Dental Handpiece

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE102005036466.7 2005-08-03
DE102005036466 2005-08-03
DE102006026832 2006-06-07
DE102006026831 2006-06-07
DE102006026831.8 2006-06-07
DE102006034658A DE102006034658A1 (de) 2005-08-03 2006-07-24 Verfahren zum wiederlösbaren Verinden eines Werkzeugs mit einem Handstück sowie Verbindung zwischen Werkzeug und zahnärztlichem Handstück
DE102006034658.0 2006-07-24

Publications (2)

Publication Number Publication Date
WO2007014548A2 true WO2007014548A2 (fr) 2007-02-08
WO2007014548A3 WO2007014548A3 (fr) 2007-06-28

Family

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Application Number Title Priority Date Filing Date
PCT/DE2006/001329 Ceased WO2007014548A2 (fr) 2005-08-03 2006-07-29 Procede pour relier de façon amovible un outil avec un porte-outil de soin dentaire, et liaison entre un outil et un porte-outil de soin dentaire

Country Status (3)

Country Link
EP (1) EP1912586A2 (fr)
DE (2) DE202006020201U1 (fr)
WO (1) WO2007014548A2 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2574293A3 (fr) * 2011-09-29 2013-08-21 Covidien LP Mécanismes d'enclenchement de guide d'ondes/transducteur pour instruments chirurgicaux ultrasoniques
US9241732B2 (en) 2012-10-16 2016-01-26 Covdien LP Surgical instrument
US9375230B2 (en) 2011-03-30 2016-06-28 Covidien Lp Ultrasonic surgical instruments
US9452027B2 (en) 2009-12-10 2016-09-27 Kerrhawe Sa Dental composite applicator and related methods
US9872698B2 (en) 2013-09-25 2018-01-23 Covidien Lp Ultrasonic dissector and sealer
WO2018026369A1 (fr) * 2016-08-04 2018-02-08 Covidien Lp Coupleur d'entraînement à auto-alignement
US9943326B2 (en) 2015-01-21 2018-04-17 Covidien Lp Ultrasonic surgical instruments and methods of compensating for transducer aging
US10299803B2 (en) 2016-08-04 2019-05-28 Covidien Lp Self-aligning drive coupler
US10603065B2 (en) 2016-02-18 2020-03-31 Covidien Lp Surgical instruments and jaw members thereof
US10729458B2 (en) 2011-03-30 2020-08-04 Covidien Lp Ultrasonic surgical instruments
US10804769B2 (en) 2015-06-17 2020-10-13 Covidien Lp Surgical instrument with phase change cooling
CN116459011A (zh) * 2023-04-17 2023-07-21 苏州微创畅行机器人有限公司 减振安装装置及手术机器人

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007024809A1 (de) * 2007-05-26 2008-11-27 Renfert Gmbh Dentalhandwerkzeuggerätesystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE575368C (de) * 1931-08-25 1933-04-27 Henry Dalzell Wilson Spannfutter mit anziehbarer Sicherungsscheibe gegen Herausfallen, insbesondere zahnaerztlicher Werkzeuge
DE19947325A1 (de) * 1999-10-01 2001-04-05 Kaltenbach & Voigt Durch eine Schraubverbindung zu verbindende Teile, insbesondere eines medizinischen Instrumentes
US6561983B2 (en) * 2001-01-31 2003-05-13 Ethicon Endo-Surgery, Inc. Attachments of components of ultrasonic blades or waveguides
ITBO20050097A1 (it) * 2005-02-24 2006-08-25 Italia Medica S R L Manipolo per apparecchiature eletromedicali ad ultrasuoni

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9452027B2 (en) 2009-12-10 2016-09-27 Kerrhawe Sa Dental composite applicator and related methods
US10729458B2 (en) 2011-03-30 2020-08-04 Covidien Lp Ultrasonic surgical instruments
US9375230B2 (en) 2011-03-30 2016-06-28 Covidien Lp Ultrasonic surgical instruments
US9345506B2 (en) 2011-09-29 2016-05-24 Covidien Lp Transducer/waveguide engagement mechanisms for ultrasonic surgical instruments
EP2574293A3 (fr) * 2011-09-29 2013-08-21 Covidien LP Mécanismes d'enclenchement de guide d'ondes/transducteur pour instruments chirurgicaux ultrasoniques
US10335181B2 (en) 2011-09-29 2019-07-02 Covidien Lp Transducer/waveguide engagement mechanisms for ultrasonic surgical instruments
US9241732B2 (en) 2012-10-16 2016-01-26 Covdien LP Surgical instrument
US11304719B2 (en) 2013-09-25 2022-04-19 Covidien Lp Ultrasonic dissector and sealer
US9918736B2 (en) 2013-09-25 2018-03-20 Covidien Lp Ultrasonic dissector and sealer
US9872698B2 (en) 2013-09-25 2018-01-23 Covidien Lp Ultrasonic dissector and sealer
US9943326B2 (en) 2015-01-21 2018-04-17 Covidien Lp Ultrasonic surgical instruments and methods of compensating for transducer aging
US10804769B2 (en) 2015-06-17 2020-10-13 Covidien Lp Surgical instrument with phase change cooling
US10603065B2 (en) 2016-02-18 2020-03-31 Covidien Lp Surgical instruments and jaw members thereof
US11571237B2 (en) 2016-02-18 2023-02-07 Covidien Lp Surgical instruments and jaw members thereof
WO2018026369A1 (fr) * 2016-08-04 2018-02-08 Covidien Lp Coupleur d'entraînement à auto-alignement
US10299803B2 (en) 2016-08-04 2019-05-28 Covidien Lp Self-aligning drive coupler
EP4233743A3 (fr) * 2016-08-04 2023-09-27 Covidien LP Coupleur d'entraînement à auto-alignement
CN116459011A (zh) * 2023-04-17 2023-07-21 苏州微创畅行机器人有限公司 减振安装装置及手术机器人

Also Published As

Publication number Publication date
DE202006020201U1 (de) 2008-03-20
EP1912586A2 (fr) 2008-04-23
WO2007014548A3 (fr) 2007-06-28
DE102006034658A1 (de) 2007-03-01

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