+

WO2001037753A1 - Instrument (osteotome) permettant de forer des orifices dans un tissu osseux, de preference dans la machoire - Google Patents

Instrument (osteotome) permettant de forer des orifices dans un tissu osseux, de preference dans la machoire Download PDF

Info

Publication number
WO2001037753A1
WO2001037753A1 PCT/SE2000/002250 SE0002250W WO0137753A1 WO 2001037753 A1 WO2001037753 A1 WO 2001037753A1 SE 0002250 W SE0002250 W SE 0002250W WO 0137753 A1 WO0137753 A1 WO 0137753A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
instrument
bone tissue
instrument according
cone
Prior art date
Application number
PCT/SE2000/002250
Other languages
English (en)
Inventor
Lars Jörnéus
Anders Boss
Original Assignee
Nobel Biocare Ab (Publ)
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 Nobel Biocare Ab (Publ) filed Critical Nobel Biocare Ab (Publ)
Priority to AU19070/01A priority Critical patent/AU1907001A/en
Publication of WO2001037753A1 publication Critical patent/WO2001037753A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1604—Chisels; Rongeurs; Punches; Stamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1673—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the jaw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • 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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • A61C8/0025—Self-screwing with multiple threads
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1655—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for tapping
    • 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
    • A61C1/082—Positioning or guiding, e.g. of drills
    • A61C1/084—Positioning or guiding, e.g. of drills of implanting tools

Definitions

  • Instrument for forming holes in bone tissue, preferably in jaw-bone tissue.
  • the present invention relates to an instrument or osteotome for forming holes in bone tissue, the latter being in particular jaw-bone tissue and specifically porous jaw-bone tissue.
  • the instrument comprises a front portion designed as a tip or tapered part which can cooperate with the bone tissue and merges at the rear into a central portion, which in turn is connected to a rear portion.
  • the known osteotomes cannot be used for forming holes far inside the mouth, i.e. at the back of the upper and lower jaws, which is actually the area of their main application because the jaw-bone tissue is generally more porous in the posterior areas.
  • the difficulty involved in accessing the area far inside the mouth is caused by the design of the known instruments, where manual force first has to be used to apply the instrument tip to an exact position in the actual jawbone tissue, and a manual force is then exerted which is intended generally to form a hole extending straight up or down or substantially straight up or down in the jaw bone.
  • the main object of the invention is to solve the set of problems mentioned above.
  • the present invention is based on the realization that the instrument or osteotome must be provided with a hollowing and guiding mechanism which permits an exact application when forming holes in the jaw bone. Accordingly, the hollowing procedure must be able to be effected despite the said difficulty of access in conjunction with hole formation.
  • the feature which can principally be regarded as characterizing an instrument according to the invention is that the front and/or central portion (s) of the instrument is (are) provided with one or more threads which are arranged in such a way that, as the instrument rotates relative to the bone tissue, they function in the bone tissue, during hole formation, essentially as a hollowing and guiding mechanism, and less as a threading mechanism.
  • the said front portion has the shape of a cone or a truncated cone and the central portion has principally the shape of a cylinder. At least the greater parts of the front and central portions can be provided with one or more threads or thread parts.
  • the thread or thread parts arranged on the first portion, shaped as a cone or truncated cone, is (are) also conical. Each thread or thread part is deigned as a relatively widely spaced thread. The bottom surface between two thread turns is substantially straight.
  • the thread or thread part is designed with a salient thin thread profile.
  • each thread or thread part above the body or core of the front and/or central portions, on which the thread/threads and thread parts are applied also assumes certain chosen values.
  • the outer surface or peripheral surface of each thread or thread part is substantially straight.
  • the thread located furthest forwards on the conical or cone-shaped portion has a straight peripheral surface which slopes rearwards/outwards at a fixed first angle.
  • On the cylindrical portion the straight surface slopes forwards/outwards at a fixed second angle.
  • the rear portion of the instrument can be designed to permit connection to an angled handpiece (dental angled handpiece) , by means of which rotation can be transmitted to the instrument, the said rotation being able to assume relatively low values.
  • the instrument can be included in a set of instruments with other identically designed or very similarly designed instruments. The hole formation can thus be carried out sequentially, starting with an instrument of small calibre or diameter, and continuing with one or more larger instruments as hole formation proceeds .
  • the thread in question has a structure which is essentially directed solely at a hollowing and guiding effect for hole formation, principally in porous bone tissue/jaw-bone tissue.
  • the thread structure has thus been given a special precision which guarantees the said hollowing and guiding functions at the same time as it suppresses the thread formation in the tissue, which means that an almost optimum bone compression can be obtained and used in connection with the hole and that the risk of bone tissue being pushed away laterally from the hole wall can be avoided in a reliable manner.
  • the attachment to the angled mouthpiece contributes to solving the accessibility problem, and hole formation can be effected with the desired speed of rotation of the instrument.
  • an instrument which is basically known per se can be used, facilitating the use in connection with this type of hole formation.
  • the hollowing force is built into the instrument function, no external force need be applied to the instrument, and instead the latter can be easily guided in the correct direction and thereafter effect the necessary insertion force during rotation of the instrument with the dental angled handpiece.
  • Figure 1 shows the novel instrument in a perspective view, obliquely from above and from behind
  • Figure 2 shows the instrument according to Figure 1 in a longitudinal view
  • Figure 3 shows an enlargement of a thread of the instrument according to Figures 1 and 2.
  • the instrument (osteotome) is indicated by 1.
  • the instrument comprises a front portion la which can consist of a tip or of a part tapering from the free end.
  • the instrument also comprises a central portion lb and a rear portion lc.
  • the front portion la has the shape of a cone or truncated cone.
  • the front portion merges at the rear into the said central portion lb which has the shape of a cylinder.
  • the central portion in turn merges into the rear portion lc.
  • the rear portion lc is provided at the back with an attachment lc' , via which the instrument 1 can be connected to a dental angled handpiece (symbolically indicated) by means of which the instrument can be rotated in a direction of rotation 3 which is preferably clockwise upon insertion.
  • the rotation takes place about the longitudinal axis Id of the instrument.
  • the designs of the attachment part lc' and of the angled handpiece 2 are well known per se and will therefore not be described in detail here.
  • the front portion, shaped as a truncated cone, and the central portion, shaped as a cylinder, are both provided with a thread; the thread part for the front portion shaped as a truncated cone is indicated by 4 while the thread on the cylindrical central portion is indicated by 5.
  • the core or body of the central portion is indicated by 6, and the core or body of the cylindrical portion is indicated by 7.
  • the thread 4 essentially follows the cone shape of the core 6, and the thread 5 essentially follows the shape of the core 7.
  • the extent and configuration of the thread 4, 5 can be varied.
  • several threads can be used and/or only part or parts of the front and central portions are provided with threads or thread parts .
  • the threads can be interrupted, meaning that each thread extends only along part of the circumferential turn, and they can be in the form of multiple threads, etc.
  • Figure 2 shows that special care has been taken in the design of the thread 4, 5 in question.
  • the main feature of the thread is that it must be thin and designed with a low thread height, and that the thread as such is widely spaced, i.e. the distance between the thread turns is relatively great.
  • a feature in accordance with the above is, inter alia, that the hole created in the bone tissue must be as unthreaded as possible.
  • the length L of the instrument is about 30 mm. Of this length, there is a total length LI of about 10 mm for the thread 4, 5.
  • the cone-shaped portion and the thread on the latter have a length L2 of about 5 mm.
  • the cylindrical portion lb has a core diameter Dl of about 3 mm, and the diameter at the end of the truncated cone-shaped front portion la has a diameter D2 of about 2 mm.
  • the thread 4 follows the cone shape 6 of the said core part.
  • the shape of the thread 5 follows the shape of the core part 7.
  • the thread diameter D exceeds the body diameter Dl by about 0.5 mm.
  • Figure 2 also shows an angle ⁇ which represents the half cone angle of the cone-shaped front portion.
  • each thread turn 5' of the thread 4, 5 has a straight outer surface or peripheral surface 5' .
  • a distance L3 between two contiguous threads 5a and 5b of the thread part 5 is relatively great in order to form the said widely spaced threading.
  • the thread bottom 7' between the different thread turns 5a, 5b is straight or substantially straight.
  • the straight peripheral surface 5' has a width B and a height H over the core part 7.
  • the outer surface (cf. 5' in Figure 3) of the outermost thread slopes rearwards/ outwards at an angle ⁇ .
  • the innermost thread of the thread 5 slopes forwards/outwards at an angle ⁇ .
  • the instrument which has been described above can be included in a set of instruments of different calibres or diameters D, Dl, D2. However, certain values and angles are essentially common to the instruments of different calibres.
  • the said half cone angle ⁇ is chosen in the range of 2 to 7° and is preferably about 5°.
  • the width B of each thread crest, i.e. the straight surface, is preferably chosen with values in the range of 0.05 to 0.15 mm. A value B of about 0.1 mm is preferably chosen.
  • the distance L3 in the longitudinal direction of the instrument is chosen in the range of 1 to 1.5 mm, preferably about 1.2 mm.
  • the height H is preferably chosen in the range of 0.2 to 0.3 mm and in the illustrative embodiment is about 0.25 mm.
  • the angle ⁇ is chosen in the range of 10 to 20° and is preferably about 15°.
  • the values for the angle ⁇ lie in the range of 15 to 25°, preferably about 20°.
  • the instrument must be rotated at a low speed, for example at a speed in the range of 5 to 20 rpm.
  • the bottom 6', 7' of the thread can be said to be plane. All or some of the threads can be conical, and in the present case the thread 4 is conical and the thread 5 is cylindrical.
  • the whole of the central portion is provided with a thread, likewise the whole of the cone-shaped portion.
  • the osteotome or instrument is mounted in a conventional dental angled handpiece 2 and, by allowing the osteotome to slowly rotate downwards, a seat is created with an identical or similar structure to the previously disclosed manual osteotome.
  • the difference is that with the osteotome according to the invention access is good and it is easy to guide it in the correct direction since it is not necessary to apply any force during the preparation or hole formation.
  • Figure 3 also indicates a radius R at each thread's transition to the straight surface 7'. The said value on this thread can be about 0.25 mm.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Epidemiology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Prostheses (AREA)

Abstract

Cet instrument permettant de forer des orifices dans un tissu osseux, de préférence dans la mâchoire, comporte une partie (1a), en l'occurrence une pointe ou une partie effilée, susceptible de coopérer avec le tissu osseux, et qui, à la hauteur de sa partie postérieure, fusionne avec une partie centrale (1b), laquelle est reliée à ladite partie postérieure (1c). La partie antérieure et/ou la partie centrale comporte(nt) un ou plusieurs filetages conçus, lorsque l'instrument est en rotation dans le tissu osseux, pour fonctionner comme outil de forage et de guidage plutôt que comme outil à fileter. On utilise, à cet effet, un ou plusieurs filets ou éléments de filet minces et bien écartés empêchant que le tissu osseux ne s'échappe latéralement lors du forage de l'orifice.
PCT/SE2000/002250 1999-11-29 2000-11-16 Instrument (osteotome) permettant de forer des orifices dans un tissu osseux, de preference dans la machoire WO2001037753A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19070/01A AU1907001A (en) 1999-11-29 2000-11-16 Instrument (osteotome) for forming holes in bone tissue, preferably in jaw-bone tissue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9904307A SE515290C2 (sv) 1999-11-29 1999-11-29 Instrument (osteotom) för hålupptagning i benvävnad, företrädesvis käkbensvävnad
SE9904307-7 1999-11-29

Publications (1)

Publication Number Publication Date
WO2001037753A1 true WO2001037753A1 (fr) 2001-05-31

Family

ID=20417883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/002250 WO2001037753A1 (fr) 1999-11-29 2000-11-16 Instrument (osteotome) permettant de forer des orifices dans un tissu osseux, de preference dans la machoire

Country Status (3)

Country Link
AU (1) AU1907001A (fr)
SE (1) SE515290C2 (fr)
WO (1) WO2001037753A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007017257A2 (fr) * 2005-08-09 2007-02-15 Bego Implant Systems Gmbh & Co. Kg Outils pour realiser et preparer un perçage pour des implants dentaires et implant dentaire correspondant
WO2007105063A2 (fr) * 2006-03-10 2007-09-20 Biotechnology Institute, I Mas D, S.L. Dispositif d'expansion-compaction de crête osseuse et outils associés
CN104586466A (zh) * 2015-01-14 2015-05-06 周升新 骨科定位打孔装置
CN108778158A (zh) * 2016-01-14 2018-11-09 胡维斯Ip控股公司 具有增强型沟槽轮廓的自体移植工具及其使用方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799605A2 (fr) * 1996-04-01 1997-10-08 Friatec Ag Keramik- Und Kunststoffwerke Instrument chirurgical dentaire pour la réalisation de cavités dans la mâchoire pour la pose d'implants, ainsi que méthode pour la réalisation de ces cavités
WO1998003119A1 (fr) * 1996-07-18 1998-01-29 Implant Innovations, Inc. Outils d'osteotome motorises de tassement des tissus osseux

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799605A2 (fr) * 1996-04-01 1997-10-08 Friatec Ag Keramik- Und Kunststoffwerke Instrument chirurgical dentaire pour la réalisation de cavités dans la mâchoire pour la pose d'implants, ainsi que méthode pour la réalisation de ces cavités
WO1998003119A1 (fr) * 1996-07-18 1998-01-29 Implant Innovations, Inc. Outils d'osteotome motorises de tassement des tissus osseux

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007017257A2 (fr) * 2005-08-09 2007-02-15 Bego Implant Systems Gmbh & Co. Kg Outils pour realiser et preparer un perçage pour des implants dentaires et implant dentaire correspondant
WO2007017257A3 (fr) * 2005-08-09 2007-05-03 Bego Implant Systems Gmbh & Co Outils pour realiser et preparer un perçage pour des implants dentaires et implant dentaire correspondant
WO2007105063A2 (fr) * 2006-03-10 2007-09-20 Biotechnology Institute, I Mas D, S.L. Dispositif d'expansion-compaction de crête osseuse et outils associés
WO2007105063A3 (fr) * 2006-03-10 2008-03-13 Biotechnology Inst I Mas D Sl Dispositif d'expansion-compaction de crête osseuse et outils associés
ES2324436A1 (es) * 2006-03-10 2009-08-06 Bti, I+D S.L. Expansor- compactador de cresta osea, y herramientas asociadas.
JP2009529362A (ja) * 2006-03-10 2009-08-20 バイオテクノロジー インスティチュート、アイ エムエーエス ディー、 エス．エル． 骨稜エキスパンダ−コンパクタ及び付属ツール
ES2324436B1 (es) * 2006-03-10 2010-05-25 Bti, I+D S.L. Expansor- compactador de cresta osea, y herramientas asociadas.
RU2416375C2 (ru) * 2006-03-10 2011-04-20 Байотекнолоджи Инститьют, И Мас Д, С.Л. Расширитель-уплотнитель гребня кости, соединитель, инициирующий бор и набор инструментов для подготовки верхнечелюстной кости к установке имплантата
CN104586466A (zh) * 2015-01-14 2015-05-06 周升新 骨科定位打孔装置
CN104586466B (zh) * 2015-01-14 2016-09-14 周升新 骨科定位打孔装置
CN108778158A (zh) * 2016-01-14 2018-11-09 胡维斯Ip控股公司 具有增强型沟槽轮廓的自体移植工具及其使用方法

Also Published As

Publication number Publication date
SE515290C2 (sv) 2001-07-09
AU1907001A (en) 2001-06-04
SE9904307D0 (sv) 1999-11-29
SE9904307L (sv) 2001-05-30

Similar Documents

Publication Publication Date Title
EP0530160B1 (fr) Elément destiné à l'ancrage
CA2093900C (fr) Implant dentaire muni de surfaces coupantes
JP4270579B2 (ja) 縫合糸アンカー組立体
US8480395B2 (en) Screw-type dental implant
EP1161197B1 (fr) Implant auto-taraudeur
EP2647349B1 (fr) Dispositif de fixation d'un implant dentaire
US6726480B1 (en) Support for sustaining and/or forming a dental prosthesis
US6273722B1 (en) Hybrid press fit-threaded dental implant
JP7518820B2 (ja) 歯科インプラントねじ
US5733119A (en) Dental retro-filling drill tool
US4661066A (en) Movable plate implant
EP1030622B2 (fr) Implant filete permettant d'obtenir un ancrage sur dans un os
KR20110039551A (ko) 의료용 임플란트 및 식립 방법
JP2010523179A (ja) インプラントねじの設計
WO1995017135A1 (fr) Element de fixation
WO2008107417A1 (fr) Implant dentaire, structure de butée et procédé d'implantation d'implant dentaire
US11464605B2 (en) Dental implant
WO2001037753A1 (fr) Instrument (osteotome) permettant de forer des orifices dans un tissu osseux, de preference dans la machoire
WO2011063958A1 (fr) Implant à précision directionnelle
US20150104755A1 (en) Winged implant
EP0903116A1 (fr) Ensemble de fraise et prothèse pour l'implantologie osseuse au moyen d'un pivot fileté
US20250018479A1 (en) Drill bit
US20250082442A1 (en) Dental implant
BR112021006915B1 (pt) Rosca de implante dentário
WO2005053565A2 (fr) Implant dentaire

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载