WO2012041815A1 - Vis d'ostéosynthèse à utiliser lors de l'ostéosynthèse - Google Patents

Vis d'ostéosynthèse à utiliser lors de l'ostéosynthèse Download PDF

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Publication number
WO2012041815A1
WO2012041815A1 PCT/EP2011/066686 EP2011066686W WO2012041815A1 WO 2012041815 A1 WO2012041815 A1 WO 2012041815A1 EP 2011066686 W EP2011066686 W EP 2011066686W WO 2012041815 A1 WO2012041815 A1 WO 2012041815A1
Authority
WO
WIPO (PCT)
Prior art keywords
bone screw
bone
transverse
screw according
recesses
Prior art date
Application number
PCT/EP2011/066686
Other languages
German (de)
English (en)
Inventor
Georg Gradl
Original Assignee
Universität Rostock
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 Universität Rostock filed Critical Universität Rostock
Publication of WO2012041815A1 publication Critical patent/WO2012041815A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1725—Guides or aligning means for drills, mills, pins or wires for applying transverse screws or pins through intramedullary nails or pins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • 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
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
    • A61B17/1767—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee for the patella
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1775—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the foot or ankle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1782—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hand or wrist
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • 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
    • A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • 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
    • A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone

Definitions

  • the invention relates to a bone screw for
  • Osteosynthesis is the surgical treatment of bone fractures and other bone injuries with implants, eg. B. in the form of bone screws, which are usually made of metal.
  • implants eg. B. in the form of bone screws, which are usually made of metal.
  • Osteosynthesis usually allowed an early exercise ⁇ treatment with the patient (exercise stable osteosynthesis) or even a B fracture IMPACT (load stable osteosynthesis). An only stable storage osteosynthesis is avoided as possible.
  • Osteosynthesis is also used in orthopedics for fixation after corrective bone transection (osteotomy) in cases of misalignment or joint stiffness (arthrodeses).
  • the erenosteosynthese finds in simple fractures and fractures of smaller bones application, since the screw is sufficient to stabilize the fracture, unless strong forces, such.
  • the fferenosteosynthese finds z.
  • a sufficient stability and fixation of the bone screws is only given if the fixing bone screws engage in the cortical bone.
  • a disadvantage of the screw osteosynthesis is that the c o n c h e n c h e n c u s, i.a. at early
  • the invention is therefore an object of the invention to provide a bone screw that does not loosen up even with early exercise treatments and loads on the fracture.
  • the invention provides that at least one recess for inserting a transverse pin is arranged transversely to the shank of the bone screw. This allows a cross-locking of the bone screw, especially in cortical bone, so that the fixation stability of Knochenver screw connection is substantially increased.
  • the connection between the bone screw and the bone is secured in the direction of the bone axis and against rotation about the bone axis, so that no change in the position of the bone screws used in the bone he follows. A better hold in osteoporetic bone is achieved.
  • the invention allows a penetration of the bone screw transversely to its axis by means of at least one transverse pin, thereby stabilizing the screw connection between bone and bone screw.
  • a targeting handle is used, which comes teosynthese in another form also in the Marknagelos used. After inserting the bone screw into the bone, the insertion handle is inserted with a short leg into the corresponding grooves of the head of the bone screw.
  • the cross-longer leg of the target bracket adapted to the position and the penetration angle of the cross bolt holes are formed by which the cross bolt can be accurately inserted into the bone screw.
  • DE 10 2008 014 697 A1 discloses a locking intramedullary nail for the treatment of long bones fractures in intramedullary nail osteosynthesis, the introduction of a smooth intramedullary nail into the medullary cavity (intramedullary splint) along the axis of the bone.
  • the intramedullary nail has transverse to its longitudinal axis recesses into which transverse bolts are introduced, which fix the intramedullary nail in the axial and rotational direction.
  • the transverse pins are visualized by the surgeon when inserting the intramedullary nail either via X-rays or with the help of a Targeting device controlled.
  • the transverse bolts can be introduced both transversely and inclined to lock the smooth intramedullary nail.
  • the recess is aligned at an angle obliquely to the axis of the shank of the bone screw. Also, two off ⁇ savings for insertion depending on a transverse pin at a distance from each other can be provided in the shaft. Further, the recesses may be aligned parallel to each other or at an angle to each other.
  • the two recesses may be located near the head and near the free end of the shank or at the free end of the shank. This ensures that the transverse pins in the cortical bone, ie in the outer shell of the bone, intervene.
  • the recesses consist of transverse bores in the shank of the bone screw and the transverse bolts consist of locking screws which can be inserted or screwed into the transverse bores.
  • leadership is the head of the bone screw provided with in the opening width different, opposite grooves for engaging appropriately designed springs of a target strap. This is one with the springs short leg and one on the
  • Bone screw attached to the insertion handle longer leg provided over a short bridge with each other are connected, wherein the longer leg is provided with adapted to the position and the penetration angle of the transverse bores for the cross bolt holes through which the cross bolt can be accurately inserted into the transverse bores of the bone screw.
  • Fig. 1 shows the view of the bone screw in the
  • Fig. 2 shows the view of the bone screw in the
  • Fig. 3 shows the view of the bone screw in the
  • Fig. 4 shows the view of the bone screw in the
  • Fig. 5 is an end view of the head of
  • FIG. 6 is a side view of a bone screw with attached target handle.
  • FIG. 1 shows the view of a bone screw 1 for use in osteosynthesis in the first embodiment, consisting of a head 2, a shaft 3, and an attachment screw (not shown) with an internal hexagon 16 (FIG. 5) a formed on the shaft 3 bone thread 4.
  • the free end 5 of the shaft is provided with a threaded ⁇ peak.
  • the transverse bores 14 are each with a transverse pin 9, also in the form of a locking screw 15th , Provided.
  • the transverse pin 9 and locking screws 15 are formed from a shaft 10 and free ends 11, 12, which have a thread 13, but also smooth without a thread 13 may be formed.
  • the two transverse pins 9 and locking screws 15 allow a stable angle anchoring of the bone screw 1 in the bone.
  • the bone screw 1 and the locking screw 15 may have a cannulation, not shown.
  • both the transverse bores 14 and the locking screws 15 are provided with intermeshing threads, so that the fixation takes place not only in the surrounding bone material but also in the transverse bores 14 of the bone screws 1.
  • Fig. 2 shows the view of the bone screw 1 in the second imple mentation form with two at an angle ß aligned transverse bores 14, in which in turn cross bolt 9 or locking screws 15 are used.
  • the head 2 of the bone screw 1 is formed angle stable.
  • Fig. 3 shows the view of the bone screw in the third imple mentation form arranged with two at the free end 5 of the shaft 3, with transverse pin 9 and with
  • Locking screws 15 provided transverse holes 14 and a partially formed without bone thread 4 shaft 3.
  • the bone thread 4 is formed on the head 2 of the bone screw 1 in diameter larger than the bone thread 4 at the free end 5 of the bone screw.
  • Fig. 4 shows the view of the bone screw 1 in the fourth imple mentation form with thickened diameter head 2 and two provided with cross bolt 9 or locking screws 9 parallel
  • the transverse bores 14 and the locking screws 15 may be provided with threads which can be screwed into one another.
  • the shaft 10 of the transverse pin 9 or locking screws 15 may also be smooth.
  • the free ends 11, 12 of the locking screws 15 are each provided with a thread 13, which engages in particular in the cortical bone, d. H. into the outer shell of the bone.
  • the invention enables a penetration of the bone screw 1 transversely to its axis 8 by means of at least one transverse pin 9 or a locking screw 15, thereby stabilizing the screw connection between bone and bone screw 1.
  • a target strap 19 is used as shown in FIG. 6, which after screwing the bone screw 1 in the bone with a short leg 20 and attached thereto, the grooves 17, 18 correspondingly formed, not shown springs in the corresponding grooves 17, 18th of the head 2 of the bone screw 1 is inserted.

Landscapes

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

Abstract

L'invention concerne une vis d'ostéosynthèse à utiliser lors de l'ostéosynthèse, composée d'une tête pour appliquer un outil de vissage, d'une tige et d'un filetage formé sur la tige. Les vis d'ostéosynthèse classiques risquent de se desserrer lors de traitements précoces par exercices et de sollicitations précoces de la fracture. L'invention vise à fournir une vis d'ostéosynthèse qui ne présente pas ces inconvénients. A cet effet, au moins un évidement (7) pour insérer une goupille transversale (9) est réalisé transversalement à la tige (3).
PCT/EP2011/066686 2010-09-30 2011-09-26 Vis d'ostéosynthèse à utiliser lors de l'ostéosynthèse WO2012041815A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010046979A DE102010046979A1 (de) 2010-09-30 2010-09-30 Knochenschraube zur Verwendung bei der Osteosynthese
DE102010046979.3 2010-09-30

Publications (1)

Publication Number Publication Date
WO2012041815A1 true WO2012041815A1 (fr) 2012-04-05

Family

ID=44677898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/066686 WO2012041815A1 (fr) 2010-09-30 2011-09-26 Vis d'ostéosynthèse à utiliser lors de l'ostéosynthèse

Country Status (2)

Country Link
DE (1) DE102010046979A1 (fr)
WO (1) WO2012041815A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1354562A1 (fr) * 2002-04-18 2003-10-22 Sulzer Orthopedics Ltd. Système d' ostéosynthèse
WO2004043277A1 (fr) * 2002-11-13 2004-05-27 Neurortho Implants Design, Llc Systeme d'ancrage pour la fixation d'objets sur des os
WO2009044395A2 (fr) * 2007-10-01 2009-04-09 Medilock Medical Solutions Ltd. Dispositif de fixation orthopédique et coffret pour utiliser celui-ci
DE102008014697A1 (de) 2008-03-18 2009-09-24 Eichhorn, Stefan, Dipl.-Ing. Marknagel, insbesondere verriegelbarer Marknagel, und Vorrichtung zum Fixieren des Marknagels in einem Röhrenknochen
US20100023064A1 (en) * 2008-07-24 2010-01-28 Warsaw Orthopedic, Inc. Cortical tenting screw
WO2010019979A1 (fr) * 2008-08-20 2010-02-25 Medizinische Universität Wien Ensemble de vis à os

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR949733A (fr) * 1947-07-18 1949-09-07 Dispositif d'arrêt pour vis à bois et analogue
US4636121A (en) * 1985-04-22 1987-01-13 Miller Lillias S Holding screw
DE19857279A1 (de) * 1998-12-11 2000-06-15 Onur Tarhan Knochenschraube
DE20204126U1 (de) * 2002-03-15 2003-07-24 Stryker Trauma Gmbh Zielgerät für Verriegelungsnägel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1354562A1 (fr) * 2002-04-18 2003-10-22 Sulzer Orthopedics Ltd. Système d' ostéosynthèse
WO2004043277A1 (fr) * 2002-11-13 2004-05-27 Neurortho Implants Design, Llc Systeme d'ancrage pour la fixation d'objets sur des os
WO2009044395A2 (fr) * 2007-10-01 2009-04-09 Medilock Medical Solutions Ltd. Dispositif de fixation orthopédique et coffret pour utiliser celui-ci
DE102008014697A1 (de) 2008-03-18 2009-09-24 Eichhorn, Stefan, Dipl.-Ing. Marknagel, insbesondere verriegelbarer Marknagel, und Vorrichtung zum Fixieren des Marknagels in einem Röhrenknochen
US20100023064A1 (en) * 2008-07-24 2010-01-28 Warsaw Orthopedic, Inc. Cortical tenting screw
WO2010019979A1 (fr) * 2008-08-20 2010-02-25 Medizinische Universität Wien Ensemble de vis à os

Also Published As

Publication number Publication date
DE102010046979A1 (de) 2012-04-05

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