US3555685A - Dental angle handpiece for root canal treatment - Google Patents

Dental angle handpiece for root canal treatment Download PDF

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Publication number
US3555685A
US3555685A US773707A US3555685DA US3555685A US 3555685 A US3555685 A US 3555685A US 773707 A US773707 A US 773707A US 3555685D A US3555685D A US 3555685DA US 3555685 A US3555685 A US 3555685A
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US
United States
Prior art keywords
angle handpiece
shaft
drive
wobble plate
dental
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.)
Expired - Lifetime
Application number
US773707A
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English (en)
Inventor
Hans Loge
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.)
Kaltenbach and Voigt GmbH
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Kaltenbach and Voigt 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
Application filed by Kaltenbach and Voigt GmbH filed Critical Kaltenbach and Voigt GmbH
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Publication of US3555685A publication Critical patent/US3555685A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the drive mechanism includes a wobble plate rotatable by the drive shaft of an angle handpiece and is adapted to impart axial displacement alternately to two push rods, the latter engaging transverse surfaces of a drive sleeve in such a manner that the continuous rotary motion of the drive shaft is converted to impart oscillating movement to the drive sleeve.
  • This invention relates to a dental angle handpiece for the treatment of tooth root canals.
  • the fundamental purpose of the invention is to simplify the design of the mechanism situated in the head part of the angle handpiece which converts the rapid rotation of the drive into oscillating movement required for the canal instrument, so as to facilitate simple dismantling and reassembly. Furthermore the invention pursues the purpose of obtaining a silent and abrasion-free operation.
  • the invention provides a head part for a dental angle handpiece said head part comprising a drive sleeve for the reception of a dental canal instrument, and drive mechanism in said head part operable by a drive shaft of a dental angle handpiece for imparting oscillating movement to said drive sleeve, said drive mechanism comprising a wobble plate, a rotary shaft for rotating said wobble plate, and two push rods mounted for axial displacement in said head part, said push rods cooperating with said wobble plate at one end and operatively engaging said drive sleeve at the opposite end for converting a continuous rotary movement of said rotary shaft and the associated wobble plate to impart oscillating movement to said drive sleeve.
  • FIG. 1 is a side view of a head with a canal instrument inserted therein, and part of an angle handpiece, and
  • FIG. 2 is a sectional view taken through the head and the angle handpiece along the line II of FIG. 1.
  • the reference 1 designates the lower part of an angle handpiece, on which a head 3 is fitted.
  • a head sleeve 2 having locking holes 2a adapted to be engaged in known manner by a locking pin (not shown), is arranged to prevent inadvertent displacement of the head 3 from the lower part 1 of the angle handpiece.
  • a canal instrument 4 is inserted in the head.
  • FIG. 2 shows details of the aforementioned parts.
  • a shaft part of which is shown at 5, is mounted in the lower part 1 of the angle handpiece for rotation by a suitable drive e.g. an articulated sliding joint connection (not shown).
  • a gearwheel 6 is mounted on the shaft 5.
  • the lower part 1 of the angle handpiece terminates at the head side in a knee 1a.
  • An intermediate bearing element 8 is screwed at 1b into this knee 1a.
  • a shaft 9 is arranged for rotation in this intermediate bearing element in two bearings of which one is shown in cross-section at 10. At the drive input end, the shaft 9 carries a gearwheel 7 which meshes with the gearwheel 6 in such a manner that driving power can be transmitted at an angle.
  • the shaft 9 carries a wobble plate 11 whose end face 11a inclined at a specific angle relatively to the longitudinal axis carries out a rotating tumbling movement when the driving shaft rotates.
  • the angle of the inclination enclosed by the end face and the longitudinal axis is conveniently between 50 and 60.
  • the wobble plate 11 cooperates with two push rods 12 and 13 which are arranged to be axially displaceable in the head part 14.
  • the push rods have conically tapered ends and the ends of such rods remote from the wobble plate 11 bear against the surfaces 16a of a driving sleeve 16 mounted in the head between two bearings.
  • the canal instrument 4 has a fixing shank shown at 15 in FIG. 2.
  • the mechanism situated in the head part 14 operates as follows: as the driving shaft 5 rotates, the gearwheel 6 transmits its rotational movement by way of the gear wheel 7 to the shaft 9 mounted in the intermediate bearing element 8.
  • the wobble plate 11 which owing to the circulating wobbling movement of the end face 11a, axially displaces the push rods 12 and 13 alternately.
  • the push rod 13 pushes against the left-hand part of the surface 16a of the bottom of the groove in the driving sleeve and rotates the driving sleeve towards the right through an angle of from about 60 to The right-hand part of the surface 16a at the same time presses the push row 12 back.
  • the push rod can slide back since the space for this has been freed by rotation of the inclined end face 11a. This operation is repeated as long as the rotation of the shaft 9 is maintained.
  • the driving sleeve 16 oscillating thus also imparts a similar movement to the canal instrument 4.
  • the advantage of this arrangement consists on the one hand in that the head part is very simple from the constructional point of view and on the other hand in the fact that the wobble plate always has to move equal masses in the form of the two push rods i.e. a desirable mass equilibrium is obtained to a certain extent. This means that the angle handpiece with the head part attached lies very steadily in the dentists hand, which is also to the patients adavntage.
  • a dental angle handpiece including a head comprising a drive sleeve pivotably supported in said head, said drive sleeve being adapted for securely receiving a dental canal instrument, and driving means supported in said head for imparting oscillating movement to said drive sleeve, said driving means comprising a wobble plate, a rotatably supported shaft including opposite end portions, said wobble plate being connected to one end portion of said shaft to rotate therewith, means for rotating the other end portion of said shaft, said wobble plate including an inclined face, and a pair of axially displaceable spaced push rods, each including opposite end portions, one end portion of each of said push rods being slidingly engageable with said inclined face of said wobble plate, said drive sleeve including abutment means, the other end portion of each of said push rods being alternately engageable with said abutment means of said drive sleeve to oscillate said drive sleeve about the pivotal axis thereof.

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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US773707A 1967-11-08 1968-11-06 Dental angle handpiece for root canal treatment Expired - Lifetime US3555685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1566243 1967-11-08

Publications (1)

Publication Number Publication Date
US3555685A true US3555685A (en) 1971-01-19

Family

ID=5677970

Family Applications (1)

Application Number Title Priority Date Filing Date
US773707A Expired - Lifetime US3555685A (en) 1967-11-08 1968-11-06 Dental angle handpiece for root canal treatment

Country Status (5)

Country Link
US (1) US3555685A (enrdf_load_stackoverflow)
AT (1) AT288590B (enrdf_load_stackoverflow)
CH (1) CH497172A (enrdf_load_stackoverflow)
FR (1) FR1588739A (enrdf_load_stackoverflow)
GB (1) GB1231417A (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432729A (en) * 1982-04-23 1984-02-21 Fattaleh John B Personal health care device
US4544356A (en) * 1984-11-15 1985-10-01 Block Drug Company Inc. Reciprocating dental prophylactic angular device
US4718851A (en) * 1985-11-15 1988-01-12 Kaltenbach & Voigt Gmbh & Co. Handpiece, especially for dental purposes
US6019602A (en) * 1998-10-05 2000-02-01 Fletcher; Tarrie Tooth root tip extractor
US6626670B1 (en) * 2000-01-13 2003-09-30 Sheldon A. Lerner Powered periotome
US20080300438A1 (en) * 2007-06-04 2008-12-04 Keusenkothen Paul F Conversion of co-fed methane and hydrocarbon feedstocks into higher value hydrocarbons
US20100119991A1 (en) * 2008-11-11 2010-05-13 Tarrie Fletcher Tooth root tip extractor and method
US20100126907A1 (en) * 2008-11-24 2010-05-27 Chun Changmin Heat Stable Formed Ceramic, Apparatus And Method Of Using The Same
US20100288617A1 (en) * 2009-05-18 2010-11-18 Frank Hershkowitz Pyrolysis Reactor Materials and Methods
US20100292522A1 (en) * 2009-05-18 2010-11-18 Chun Changmin Stabilized Ceramic Composition, Apparatus and Methods of Using the Same
US8512663B2 (en) 2009-05-18 2013-08-20 Exxonmobile Chemical Patents Inc. Pyrolysis reactor materials and methods
US8932534B2 (en) 2009-11-20 2015-01-13 Exxonmobil Chemical Patents Inc. Porous pyrolysis reactor materials and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847154A (en) * 1972-09-22 1974-11-12 Weck & Co Edward Surgical drill with detachable hand-piece
FR2524795A1 (fr) * 1982-04-08 1983-10-14 Micro Mega Sa Dispositif pour traitements prophylactiques

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432729A (en) * 1982-04-23 1984-02-21 Fattaleh John B Personal health care device
US4544356A (en) * 1984-11-15 1985-10-01 Block Drug Company Inc. Reciprocating dental prophylactic angular device
US4718851A (en) * 1985-11-15 1988-01-12 Kaltenbach & Voigt Gmbh & Co. Handpiece, especially for dental purposes
US6019602A (en) * 1998-10-05 2000-02-01 Fletcher; Tarrie Tooth root tip extractor
US6626670B1 (en) * 2000-01-13 2003-09-30 Sheldon A. Lerner Powered periotome
US7914667B2 (en) 2007-06-04 2011-03-29 Exxonmobil Chemical Patents Inc. Pyrolysis reactor conversion of hydrocarbon feedstocks into higher value hydrocarbons
US20080300438A1 (en) * 2007-06-04 2008-12-04 Keusenkothen Paul F Conversion of co-fed methane and hydrocarbon feedstocks into higher value hydrocarbons
US20090008292A1 (en) * 2007-06-04 2009-01-08 Keusenkothen Paul F Pyrolysis reactor conversion of hydrocarbon feedstocks into higher value hydrocarbons
US8106248B2 (en) 2007-06-04 2012-01-31 Exxonmobil Chemical Patents Inc. Conversion of co-fed methane and hydrocarbon feedstocks into higher value hydrocarbons
US20100119991A1 (en) * 2008-11-11 2010-05-13 Tarrie Fletcher Tooth root tip extractor and method
US20100126907A1 (en) * 2008-11-24 2010-05-27 Chun Changmin Heat Stable Formed Ceramic, Apparatus And Method Of Using The Same
US20100292522A1 (en) * 2009-05-18 2010-11-18 Chun Changmin Stabilized Ceramic Composition, Apparatus and Methods of Using the Same
US20100292523A1 (en) * 2009-05-18 2010-11-18 Frank Hershkowitz Pyrolysis Reactor Materials and Methods
US20100288617A1 (en) * 2009-05-18 2010-11-18 Frank Hershkowitz Pyrolysis Reactor Materials and Methods
US8399372B2 (en) 2009-05-18 2013-03-19 Exxonmobil Chemical Patents Inc. Stabilized ceramic composition, apparatus and methods of using the same
US8450552B2 (en) 2009-05-18 2013-05-28 Exxonmobil Chemical Patents Inc. Pyrolysis reactor materials and methods
US8512663B2 (en) 2009-05-18 2013-08-20 Exxonmobile Chemical Patents Inc. Pyrolysis reactor materials and methods
US8734729B2 (en) 2009-05-18 2014-05-27 Exxonmobil Chemical Patents Inc. Stabilized ceramic composition, apparatus and methods of using the same
US8821806B2 (en) 2009-05-18 2014-09-02 Exxonmobil Chemical Patents Inc. Pyrolysis reactor materials and methods
US9441166B2 (en) 2009-05-18 2016-09-13 Exxonmobil Chemical Patents Inc. Pyrolysis reactor materials and methods
US10053390B2 (en) 2009-05-18 2018-08-21 Exxonmobil Chemical Patents Inc. Pyrolysis reactor materials and methods
US8932534B2 (en) 2009-11-20 2015-01-13 Exxonmobil Chemical Patents Inc. Porous pyrolysis reactor materials and methods

Also Published As

Publication number Publication date
AT288590B (de) 1971-03-10
CH497172A (de) 1970-10-15
FR1588739A (enrdf_load_stackoverflow) 1970-04-17
GB1231417A (enrdf_load_stackoverflow) 1971-05-12

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