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WO2008073287A2 - Dispositif d'entraînement et procédé de fixation d'un implant dentaire - Google Patents

Dispositif d'entraînement et procédé de fixation d'un implant dentaire Download PDF

Info

Publication number
WO2008073287A2
WO2008073287A2 PCT/US2007/025039 US2007025039W WO2008073287A2 WO 2008073287 A2 WO2008073287 A2 WO 2008073287A2 US 2007025039 W US2007025039 W US 2007025039W WO 2008073287 A2 WO2008073287 A2 WO 2008073287A2
Authority
WO
WIPO (PCT)
Prior art keywords
driver
locking disc
shaft
implant
sleeve
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/US2007/025039
Other languages
English (en)
Other versions
WO2008073287A3 (fr
Inventor
Dale Whipple
Linda Jalbert
James Simpson
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.)
Keystone Dental Inc
Original Assignee
Keystone Dental Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keystone Dental Inc filed Critical Keystone Dental Inc
Publication of WO2008073287A2 publication Critical patent/WO2008073287A2/fr
Publication of WO2008073287A3 publication Critical patent/WO2008073287A3/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
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments

Definitions

  • the present invention relates to a method and dental implant driver for engaging a dental implant, removing it from its packaging, transporting the implant to the surgical site, screwing the implant into place and than releasing the implant from the driver.
  • U.S. Patent No. 6,416,324 attempts to solve the problems of past installation systems by providing a healing screw that is attached to the implant and driven by a driver tool.
  • One disadvantage of this system is the elaborate engagement feature between the screw and the driver. This leads to increased costs.
  • U.S. Published Patent Application No. 2003/0224327 discloses a driving tool that includes a hexagonal driver head that engages the implant via an interference fit.
  • One disadvantage of this device is the reliance upon an o-ring and kerf configuration to retain the implant on the tool. Once the implant is in place, it is difficult to remove the driver from the socket as no means to disengage the driver is provided.
  • One aspect of the present invention is to provide a dental driver that can engage an implant, transport it to an osteotomy site and transfer rotational force from a drill or tool to implant the implant therein.
  • Another aspect of the present invention is to provide a driver that can be removed from the osteotomy site after the implant has been installed without additional tools, action or force.
  • Yet another aspect of the present invention is to provide a driver that will not strip or deform the conical surface inside the implant.
  • Still another aspect of the present invention is to provide a driver that engages a relief groove in the implant.
  • a driver for implanting a dental implant into a jaw bone of a patient.
  • the driver includes a shaft having a distal and a proximal end. The distal end of the shaft is constructed and arranged to be driven by a dental tool to drive the implant into the jaw.
  • a multi-faceted locking disc is disposed at the proximal end of the shaft for engaging and disengaging a relief groove in the implant.
  • a drive dog is located on the shaft in proximity to the locking disc.
  • a multi-faceted sleeve is disposed on the shaft between the drive dog and the locking disc. The shaft is rotatable with respect to the sleeve to align and misalign the facets of the locking disc with the facets of the sleeve to engage and disengage the implant.
  • a method for implanting a dental implant into a jawbone of a patient includes the step of providing a dental implant, the implant having a relief groove for engagement therewith and providing a driver, the driver having a shaft having a distal and a proximal end. The distal end is constructed and arranged to be driven by a dental tool to drive the implant into the jaw.
  • a locking disc is disposed at the proximal end of the shaft for engaging and disengaging the relief groove of the implant, a drive dog is located on the shaft in proximity to the locking disc, and a sleeve is disposed on the shaft, the shaft being rotatable with respect to the sleeve.
  • the driver tool is inserted into the implant.
  • the locking disc is engaged with the relief groove of the implant to lock the implant on the driver.
  • the implant and driver are removed from its sterile packaging.
  • the implant connected to the driver is transported to an osteotomy site in the jaw where the implant is positioned within the osteotomy site.
  • the locking disc is disengaged from the relief groove to unlock the driver from the implant, and the driver is removed from the implant.
  • Fig. 1 is a perspective view of a driver of the present invention shown with the sleeve and plate aligned.
  • Fig. 2 is a perspective view of the driver of Fig. 1 with the sleeve and plate non-aligned.
  • Fig.3 is a cross-sectional view of the driver positioned within the dental implant.
  • Fig. 4 is a side view of the driver.
  • Fig. 5A is a cross-section of the driver of Fig. 4 taken along line I-I.
  • Fig. 5B is an enlarged view of section D of Fig. 5 A.
  • Fig. 6 is an enlarged view of the sleeve and plate of Fig. 2.
  • Figs. 7A- 7C are perspective end views of the driver shown in an unengaged and engaged position within the implant.
  • Fig. 7D is a bottom view of another embodiment of the locking disc.
  • Fig. 8 is an enlarged cross-sectional view of the driver shown in an unengaged and engaged position within the implant.
  • Fig. 9 is perspective view of the shear pin of the driver.
  • Fig. 10 is an enlarged cross-sectional view of the detent mechanism of the present invention.
  • Fig. 1 1 is perspective view of the detent mechanism of Fig. 10.
  • Fig. 12 is a cross-sectional view of the detent mechanism taken along line I-I of Fig. 10.
  • Fig. 13 is a perspective view of another embodiment of a driver of the present invention.
  • Fig. 14 is an enlarged view of the end of the driver of Fig. 13.
  • the present invention relates to a driver 10 for installing an implant 50.
  • Driver 10 is designed to engage the implant and position it within bone tissue. It should be appreciated that although the present invention is described in relation to a dental implant, it is contemplated that the device and method can be used install numerous different types of implants in a variety of bone and tissue locations.
  • Driver 10 includes a shaft 12 having a distal end 14 and a proximal end 16 (Fig. 3).
  • Distal end 14 is shaped so as to engage with a plurality of different dental tools.
  • a drill, a motorized dental tool, or other hand driven tools, such as a ratchet or other connections, can engage the driver tool.
  • a locking disc 18, which will be described further herein, is located at the proximal end 16 of shaft 12.
  • a drive dog 20 is connected to shaft 12 near proximal end 16.
  • Drive dog 20 can be permanently attached to shaft 12 via welding or other mounting, or means can be provided to lock the drive dog to the shaft.
  • Drive dog 20 can have a conical or other shape and includes a plurality of projections or dogs 22 extending therefrom.
  • a sleeve 26 is located on the shaft at proximal end 16 between locking disc 18 and drive dog 20. Shaft 12 freely rotates within sleeve 26.
  • Drive dog 20 in turn transfers torque to sleeve 26.
  • the driver, locking dog and sleeve can be made of a sterilizable material, such as stainless steel or titanium, so as to be reuseable.
  • sleeve 26 includes a plurality of slots 28 equally spaced about the circumference thereof. Projections 22 of drive dog 20 extend into slots 28. As shaft 12 is rotatable within sleeve 26, when shaft 12 is torqued relative to sleeve 26 the projections 22 shift within slots 28.
  • Locking disc 18 and sleeve 26 have the same octagonal shape. It should be appreciated that disc 18 can be made of other shapes, for example, a polygon, Torx or any other multi-faceted interface are contemplated by the present invention. As shown in Fig.
  • the sides of the locking disc align with the sides of the sleeve, for example, the octagon of the sleeve aligns with the octagon of the locking disc.
  • projections 22 abut against one side of slots 28.
  • Fig. 7A is a perspective view of locking disc 18 and sleeve 26 located within a cavity 52 (Fig. 3) of implant 50 in an aligned position.
  • driver 10 has a larger taper at the bottom so that it will not deform the conical surface of cavity 52.
  • Locking disc 18 includes a plurality of sides or facets 32. As described above and as shown in Fig. 7B - 1C, when locking disc 18 is rotated sides or facets 32 of the disc become anti-aligned with the sides or facets 36 of the sleeve. Facets 32 need not be straight, but can have a curved or sloped surface. As shown in Fig. 7D, locking disc 18' can have a lobular shape wherein facets 32'and apexes 38 are curved.
  • Relief groove 54 is formed in the cavity prior to the broaching operation to end the cut.
  • the groove makes it possible to broach by letting the cutting chip break away. Therefore, a separate groove is not required to be made in the implant to coordinate with the driver of the present invention.
  • the shaft of the driver includes a shear-pin device 60 that serves to limit the maximum torque applied to implant 50 during insertion.
  • Device 60 can be a pin or other structure that passes through drive dog 20 and shaft 12. The shearing device will fail in a "fail-safe" mode, to allow easy removal of the driver without damage to the implant or any small parts breaking off.
  • a member 70 can be provided to lock the driver to the implant.
  • Member 70 can be a spring that holds sleeve 26 (shown in phantom) in a locked or unlocked position. In the locked position where the member is engaged disturbances occurring during shipping will not engage or disengage the driver. The detent will release during the driving of the implant to unlock and allow the driver tool to be removed from the implanted implant.
  • spring 70 is long and slender it deforms to engage or disengage with sleeve 26.
  • sleeve 26 includes detents 62 in which an end 72 of spring 70 rests. When sleeve 26 is rotated spring 70 deforms as it rides out of one detent 62 and relaxes when it moves into the other detent.
  • FIG. 13 and 14 another embodiment of the driver of the present invention includes a drive dog 200 connected to shaft 12 near proximal end 16.
  • Drive dog 200 can be permanently attached to shaft 12 via welding or other mounting, or means can be provided to lock the drive dog to the shaft.
  • Locking disk 18 is also located at proximal end 16.
  • a sleeve 260 is located on the shaft at proximal end 16 between locking disc 18 and drive dog 200.
  • Shaft 12 freely rotates within sleeve 260.
  • Drive dog 200 in turn transfers torque to sleeve 260.
  • drive dog 200 has a channel 220 in which an o-ring 240 can be located.
  • the driver of the present invention is engaged with a dental implant, and is used to remove the implant from its packaging, transport the implant to the surgical site, and screw the implant into place.
  • the driver holds the implant and both come pre-engaged, stored and shipped in a sterile package.
  • the driver can be engaged and the driver and implant attached thereto are removed from the package.
  • the driver having the locking disc is received in the cavity of the implant and is engaged with the relief groove of the implant by rotating the shaft to misalign the facets of the locking discs with the facets of the sleeve.
  • the spring and detent mechanism 70/62 prevent the driver and implant from becoming disengaged during shipping and storage in the sterile package.
  • the implant is transported along with the driver to an osteotomy site in the jaw.
  • the implant can be positioned within the osteotomy site.
  • the distal end of the shaft is attachable to the drill or turning tool to rotate the shaft and drive the implant into the bone.
  • To disengage the locking disc from the relief groove the shaft is rotated again to align the facets of the locking disc with the facets of the sleeve. This disengages the apex of the facets from the relief groove and the driver can be removed from the implant.
  • the torque or rotation to disengage the locking disc is provided by the implant insertion torque. Thus, an additional action to unlock the driver is not required.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & 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 Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un dispositif d'entraînement permettant d'implanter un implant dentaire dans un maxillaire d'un patient, ce dispositif comprenant un arbre ayant une extrémité distale et proximale. L'extrémité distale de l'arbre est construite et agencée pour être entraînée par un outil afin d'entraîner l'implant dans la mâchoire. Un disque de blocage multifacette est agencé au niveau d'une extrémité proximale de l'arbre afin de mettre en prise et libérer une rainure de dégagement dans l'implant. Un toc d'entraînement est rattaché à l'arbre à proximité du disque de blocage. Une gaine multifacette est placée sur l'arbre entre le toc d'entraînement et le disque de blocage. L'arbre est rotatif par rapport à la gaine afin d'aligner et désaligner les facettes du disque de blocage aux facettes de la gaine permettant l'engagement et le désengagement de l'implant. Ainsi, lorsque l'implant est en train d'être entraîné dans l'os, les facettes du disque de blocage peuvent tourner pour s'aligner à la gaine afin de désengager les facettes de la rainure et permettre l'enlèvement du dispositif d'entraînement sans des outils, action ou force supplémentaires.
PCT/US2007/025039 2006-12-07 2007-12-07 Dispositif d'entraînement et procédé de fixation d'un implant dentaire Ceased WO2008073287A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87329306P 2006-12-07 2006-12-07
US60/873,293 2006-12-07

Publications (2)

Publication Number Publication Date
WO2008073287A2 true WO2008073287A2 (fr) 2008-06-19
WO2008073287A3 WO2008073287A3 (fr) 2008-08-21

Family

ID=39512265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/025039 Ceased WO2008073287A2 (fr) 2006-12-07 2007-12-07 Dispositif d'entraînement et procédé de fixation d'un implant dentaire

Country Status (1)

Country Link
WO (1) WO2008073287A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021237328A1 (fr) 2020-05-28 2021-12-02 M3 Health Indústria E Comércio De Produtos Médicos, Odontológicos E Correlatos S.A. Outil d'insertion dentaire et orthopédique
US20220218446A1 (en) * 2019-05-17 2022-07-14 Megagen Implant Co., Ltd. Surgical connector for dental fixture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451531B (sv) * 1982-05-10 1987-10-19 Whaledent International Dragverktyg for iskruvning av stift i tender
CH655845A5 (de) * 1983-11-17 1986-05-30 Straumann Inst Ag Einrichtung mit einem schraubstift zum einschrauben in einen zahn und einer spannvorrichtung zum halten des schraubstiftes.
US5944525A (en) * 1997-03-11 1999-08-31 Ura; Robert S. Dental implant and method and apparatus for installing the same
US6309154B1 (en) * 1999-10-18 2001-10-30 Vibro-Meter S.A. Torque-limiting assembly
US6951462B2 (en) * 2002-06-04 2005-10-04 Zimmer Dental Inc. Dental tool with rententive feature
US7144252B2 (en) * 2003-04-25 2006-12-05 James Walton Dental tool with shear pin handle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220218446A1 (en) * 2019-05-17 2022-07-14 Megagen Implant Co., Ltd. Surgical connector for dental fixture
WO2021237328A1 (fr) 2020-05-28 2021-12-02 M3 Health Indústria E Comércio De Produtos Médicos, Odontológicos E Correlatos S.A. Outil d'insertion dentaire et orthopédique
CN115811960A (zh) * 2020-05-28 2023-03-17 M3医疗产品贸易和健康产业及口腔相关有限公司 牙科和骨科插入工具
EP4157118A4 (fr) * 2020-05-28 2024-06-26 M3 Health Indústria e Comércio de Produtos Médicos, Odontológicos e Correlatos S.A. Outil d'insertion dentaire et orthopédique

Also Published As

Publication number Publication date
WO2008073287A3 (fr) 2008-08-21

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