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WO2009128074A1 - Implant endo-osseux avec filets internes et externes - Google Patents

Implant endo-osseux avec filets internes et externes Download PDF

Info

Publication number
WO2009128074A1
WO2009128074A1 PCT/IL2009/000414 IL2009000414W WO2009128074A1 WO 2009128074 A1 WO2009128074 A1 WO 2009128074A1 IL 2009000414 W IL2009000414 W IL 2009000414W WO 2009128074 A1 WO2009128074 A1 WO 2009128074A1
Authority
WO
WIPO (PCT)
Prior art keywords
anchoring portion
interior
threads
exterior
implant
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/IL2009/000414
Other languages
English (en)
Inventor
Idan Tobis
Nir Tobis
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.)
TAVOR [I T N] Ltd
TAVOR (I T N) Ltd
Original Assignee
TAVOR [I T N] Ltd
TAVOR (I T N) Ltd
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 TAVOR [I T N] Ltd, TAVOR (I T N) Ltd filed Critical TAVOR [I T N] Ltd
Publication of WO2009128074A1 publication Critical patent/WO2009128074A1/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
    • A61C8/0018—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
    • 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
    • A61C8/0037—Details of the shape
    • A61C8/0039—Details of the shape in the form of hollow cylinder with an open bottom
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00004—(bio)absorbable, (bio)resorbable or resorptive

Definitions

  • This invention relates to medical devices, and more specifically to endosseous implants.
  • osseointegration namely the creation of new, healthy bone tissue over most of the implant surface, with no fibrous tissue between them. It has been proposed that the biological process leading to and maintaining osseointegration is dependent upon a number of factors which include, amongst others, the surface area of the implant available for interaction. This is mainly dependant upon the geometry of the implant; its length and diameter, and the thread pitch and width.
  • the present invention provides an endosseous implant.
  • the implant of the invention comprises a hollow, open-ended cylindrical or conical component which is provided with screw threads on an interior surface of the cylindrical or conical component as well as screw threads on an exterior surface of the cylindrical or conical component.
  • the presence of the interior and exterior threads presents an increased surface area available for osseointegration in comparison to implants having only external threads.
  • the increased surface area tends to increase the short term fixation force by doubling the number of screw threads for a given screw length and diameter.
  • the device of the present invention can be used as a dental implant, bone anchor, bone screw or any other bone fixation device.
  • the invention provides a device for endosseous implantation comprising an anchoring portion, the anchoring portion comprising a hollow cylinder or cone having an exterior surface and an interior surface, wherein the interior surface is provided with interior screw threads and the exterior surface is provided with exterior screw threads.
  • the invention also provides a method for deploying a device for endosseous implantation, the device comprising an anchoring portion, the anchoring portion comprising a hollow cylinder or cone having an exterior surface and an interior surface, wherein the interior surface is provided with interior screw threads and the exterior surface is provided with exterior screw threads, the method comprising forming a cylindrical cavity in a bone tissue and screwing the anchoring portion of the device into the cavity.
  • Figs. Ia, Ib, and Ic show an endosseous implant in accordance with one embodiment of the invention
  • Fig. 2 shows the implant of Fig. 1 after insertion into bone tissue; and Fig. 3a, 3b, and 3c show an endosseous implant in accordance with another embodiment of the invention.
  • Fig. 1 shows an endosseous implant 2 in accordance with one embodiment of the invention.
  • the implant 2 is shown in perspective view in Figs. Ia and b, and in longitudinal sectional view in Fig. Ic.
  • the implant 2 comprises an anchoring portion 4 and a head portion 3 that in use emerges from the osseous tissue into which the anchoring portion 2 has been inserted.
  • the head portion 3 is adapted to receive a dental prosthesis, as is known in the art.
  • the anchoring portion 4 has a hollow cylindrical component enclosing a lumen 6.
  • the anchoring portion 4 has an exterior surface 8 that is provided with exterior threads 9.
  • the anchoring portion also has an interior surface 7 surrounding the lumen 6 that is provided with interior threads 11.
  • the interior and exterior threads have the same thread lead in order to allow screwing of the device into bone tissue.
  • the interior and exterior threads may have a different pitch resulting from a different number of thread starts (single, double, triple or quadruple threads), equally spaced around the periphery.
  • the implant 2 is deployed by screwing the anchoring portion 4 into bone tissue, such as an upper or lower jaw, a femur, a tibia or any other bone in the body.
  • Fig. 2 shows the implant 2 after implantation in bone tissue 10.
  • a cylindrical cavity 12 was pre-drilled in the bone tissue 10 using a hollow cylindrical drill bit.
  • the anchoring portion 2 is preferably self-tapping and may thus be screwed into the cavity 12.
  • the tissue 10 surrounds anchoring portion 4 and also occupies the lumen 6. In this way, both the interior threads and the exterior threads 9 are engaged by the bone tissue 10.
  • the implant 2 may be made from a biocompatible or osseointegrative material such as Stainless steel, Cobalt Chromium alloys, titanium, tantalum or niobium
  • the anchoring portion 2 may be coated with a. biocompatible osseointegrative ceramic material such as Zirconia or Titania.
  • the implant 2 is made from a bioabsorbable or biodegradeable material such as hydroxiapetite, polyglycolyc acid, polylactic acid, magnesium alloy or a combination of such materials.
  • Fig. 3 shows an endosseous implant 22 in accordance with another embodiment of the invention.
  • the implant 22 is shown in perspective view in Figs. 3a and b, and in longitudinal sectional view in Fig. 3c.
  • the implant 22 comprises an anchoring portion 24 and a head portion 23 that in use emerges from the osseous tissue into which the anchoring portion 24 has been inserted.
  • the head portion 23 is adapted to receive a dental prosthesis, as is known in the art.
  • the anchoring portion 24 has a hollow conical component enclosing a lumen 26.
  • the anchoring portion 24 has an exterior surface 28 that is provided with exterior threads 29.
  • the anchoring portion also has an interior surface 27 surrounding the lumen 26 that is provided with interior threads 21.
  • the interior and exterior threads have the same thread lead in order to allow screwing of the device into bone tissue.
  • the interior and exterior threads may have a different pitch resulting from a different number of thread starts (single, double, triple or quadruple threads), equally spaced around the periphery.
  • the implant 22 is deployed by screwing the anchoring portion 24 into bone tissue, such as an upper or lower jaw, a femur, a tibia or any other bone in the body.
  • bone tissue such as an upper or lower jaw, a femur, a tibia or any other bone in the body.
  • an appropriately shaped cavity can be pre-drilled in the bone tissue using a hollow drill bit.
  • the anchoring portion 22 is preferably self-tapping and may thus be screwed into the cavity.
  • the tissue will thus surround the anchoring portion 22 and also occupy the lumen 26. In this way, both the interior threads and the exterior threads 29 are engaged by the bone tissue.

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)
  • Prostheses (AREA)

Abstract

La présente invention concerne un dispositif pour implantation endo-osseuse. Le dispositif selon l’invention inclut une partie d’ancrage dotée d’un cône ou d’un cylindre creux avec une surface externe et une surface interne, les deux surfaces étant pourvues de filets de vis. Ces filets internes et externes présentent une surface accrue disponible pour l’ostéo-intégration par rapport aux implants qui sont uniquement pourvus de filets externes. Cette surface accrue tend à augmenter la force de fixation à court terme grâce au doublage du nombre des filets de vis pour un diamètre et une longueur de vis donnés. Le dispositif selon la présente invention peut être utilisé en tant qu’implant dentaire, ancre osseuse, vis à os ou n’importe quel dispositif de fixation osseuse.
PCT/IL2009/000414 2008-04-16 2009-04-16 Implant endo-osseux avec filets internes et externes Ceased WO2009128074A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7117308P 2008-04-16 2008-04-16
US61/071,173 2008-04-16

Publications (1)

Publication Number Publication Date
WO2009128074A1 true WO2009128074A1 (fr) 2009-10-22

Family

ID=40974437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2009/000414 Ceased WO2009128074A1 (fr) 2008-04-16 2009-04-16 Implant endo-osseux avec filets internes et externes

Country Status (1)

Country Link
WO (1) WO2009128074A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102551901A (zh) * 2011-12-12 2012-07-11 北京航空航天大学 一种改善颌骨承载方式的口腔种植方法及螺套型种植体
KR102059960B1 (ko) 2018-06-11 2019-12-30 장희지 생분해성 물질을 구비한 임플란트
WO2020046912A1 (fr) * 2018-08-31 2020-03-05 Acuitive Technologies, Inc. Ancrage par interférence avec un tendon
US11246636B2 (en) 2019-04-26 2022-02-15 Braunvest Llc Systems, methods, and apparatus for spinal deformity correction
US11648000B2 (en) 2018-07-30 2023-05-16 Braunvest Llc Vertebral probes and related surgical methods
US12232781B2 (en) 2018-07-30 2025-02-25 BraunVest, LLC Cortical/cancellous bone probes and related surgical methods
US12329429B2 (en) 2019-04-26 2025-06-17 Braunvest Llc Systems, methods, and apparatus for spinal deformity correction
US12419670B2 (en) 2019-04-26 2025-09-23 BraunVest, LLC Methods for bone compression and/or fixation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010095A (en) * 1977-12-09 1979-06-27 Riess Guido Dental implant
DE19713305A1 (de) * 1997-03-29 1998-10-01 Wilfried Prof Dr Med D Engelke Resorbierbarer Obturator
FR2831049A1 (fr) * 2001-10-18 2003-04-25 Ldr Medical Plaque pour dispositif d'osteosynthese et procede de premontage
US20050164146A1 (en) * 2004-01-28 2005-07-28 Cantor Stanton R. Anchoring element for use in bone
WO2007106774A2 (fr) * 2006-03-13 2007-09-20 The Johns Hopkins University Systeme de vis orthopedique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010095A (en) * 1977-12-09 1979-06-27 Riess Guido Dental implant
DE19713305A1 (de) * 1997-03-29 1998-10-01 Wilfried Prof Dr Med D Engelke Resorbierbarer Obturator
FR2831049A1 (fr) * 2001-10-18 2003-04-25 Ldr Medical Plaque pour dispositif d'osteosynthese et procede de premontage
US20050164146A1 (en) * 2004-01-28 2005-07-28 Cantor Stanton R. Anchoring element for use in bone
WO2007106774A2 (fr) * 2006-03-13 2007-09-20 The Johns Hopkins University Systeme de vis orthopedique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102551901A (zh) * 2011-12-12 2012-07-11 北京航空航天大学 一种改善颌骨承载方式的口腔种植方法及螺套型种植体
KR102059960B1 (ko) 2018-06-11 2019-12-30 장희지 생분해성 물질을 구비한 임플란트
US11648000B2 (en) 2018-07-30 2023-05-16 Braunvest Llc Vertebral probes and related surgical methods
US12232781B2 (en) 2018-07-30 2025-02-25 BraunVest, LLC Cortical/cancellous bone probes and related surgical methods
WO2020046912A1 (fr) * 2018-08-31 2020-03-05 Acuitive Technologies, Inc. Ancrage par interférence avec un tendon
US11246636B2 (en) 2019-04-26 2022-02-15 Braunvest Llc Systems, methods, and apparatus for spinal deformity correction
US11974792B2 (en) 2019-04-26 2024-05-07 Braunvest Llc Systems, methods, and apparatus for spinal deformity correction
US12329429B2 (en) 2019-04-26 2025-06-17 Braunvest Llc Systems, methods, and apparatus for spinal deformity correction
US12419670B2 (en) 2019-04-26 2025-09-23 BraunVest, LLC Methods for bone compression and/or fixation

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