EP2066248A2 - Operationsgerät für osteosynthese - Google Patents

Operationsgerät für osteosynthese

Info

Publication number
EP2066248A2
EP2066248A2 EP07823488A EP07823488A EP2066248A2 EP 2066248 A2 EP2066248 A2 EP 2066248A2 EP 07823488 A EP07823488 A EP 07823488A EP 07823488 A EP07823488 A EP 07823488A EP 2066248 A2 EP2066248 A2 EP 2066248A2
Authority
EP
European Patent Office
Prior art keywords
locking sleeve
sleeve
plate
hole
screwed
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.)
Withdrawn
Application number
EP07823488A
Other languages
English (en)
French (fr)
Inventor
Alexandre Worcel
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.)
Ateliers Laumonier Par Actions Simplifiee Ste
Laumonier Nicolas
LAUMONIER, ALAIN
LAUMONIER, REMI
LAUMONIER, YVES
Lombardo-Fiault Bernard
Paoli Edouard
Paoli Myriam
PAOLI, ALBERT
Worcel Julia
Worcel Manuel
WORCEL, ALEXANDRE
Laumonier Bruno
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2066248A2 publication Critical patent/EP2066248A2/de
Withdrawn legal-status Critical Current

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
    • A61B17/56—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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • A61B17/8047—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers wherein the additional element surrounds the screw head in the plate hole

Definitions

  • the present invention relates to a surgical apparatus for osteosynthesis, comprising a plate and a locking sleeve. It also relates to an apparatus further comprising a pin, the locking sleeve being intended to ensure a locking between the plate and the pin.
  • This osteosynthesis device comprises a plate 2 having at least two holes, only one of which is shown in the figure, for receiving pins which are screwed into a bone part.
  • the holes of the plate are threaded and receive an intermediate sleeve 6.
  • This has a central orifice itself threaded whose axis zz 'is inclined at an angle ⁇ relative to its axis of revolution yy'.
  • a locking sleeve 10 is screwed by a thread at its lower part in the intermediate sleeve.
  • the practitioner After piercing the plate 2 in at least two locations chosen to ensure its fixation on the bone portion 4, performs a drilling of this bone part by guiding a forest perpendicular to the plaque. Then, it sets up the intermediate sleeve 6 and screws the threaded spindle 8 in the bone part to the desired length. It then introduces the locking sleeve 10 on the pin 8 and proceeds to screw this locking sleeve 10 into the intermediate sleeve 6.
  • This device is effective but it has a number of disadvantages.
  • the tolerance is low on the angular difference between the axes yy 'and zz'.
  • the manufacture of the intermediate bushing is therefore delicate, which induces a high manufacturing cost.
  • this angular difference if it allows to ensure effective blocking, has the disadvantage that this blockage already occurs from the beginning of the screwing of the locking sleeve 10. It may therefore happen that the locking sleeve does not penetrate that insufficiently in the plate 2.
  • the intermediate sleeve and the locking sleeve must be inserted partially into the bone part to allow a good locking of the device. This does not make it possible to use this device of the prior art for the upper bones (arms, forearms, hands) which are too thin.
  • the object of the invention is to overcome the limitations of the osteosynthesis devices of the prior art.
  • the subject of the invention is a surgical osteosynthesis apparatus comprising a plate provided with at least two holes intended to join two bony parts and at least one substantially rotational locking sleeve intended to be screwed into one holes in the plate, said locking sleeve having an axial orifice for permitting the passage of a pin to be screwed into one of the bone parts, wherein: a lower part of the locking sleeve has a slot according to at least one of its rays, and
  • said locking bushing and the associated hole threadably cooperate to lock the locking bush in the hole when the bushing is screwed into the hole.
  • the slot of said locking sleeve is diametrical.
  • said locking sleeve has in a lower part a smaller envelope than in an upper part.
  • said locking sleeve has a conical or semi-hemispherical envelope.
  • said locking sleeve has a cylindrical envelope and the hole a beveled envelope.
  • said locking sleeve and the edges of the holes of the plate have a different hardness.
  • one of said locking sleeve and an edge of the hole of the plate for receiving the sleeve is treated to increase its hardness, in particular by treating its carbon surface or by hardening.
  • an intermediate sleeve is screwed into the hole of the plate and is intended to cooperate by threading with the locking sleeve.
  • the apparatus according to the invention furthermore advantageously comprises a pin intended to be screwed into a bone part.
  • the inner casing of the locking sleeve and the outer casing of the spindle are chosen so that the sleeve engages initially without friction with the spindle.
  • FIG. 1 already described, illustrates a surgical osteosynthesis apparatus according to the prior art
  • Figures 3 and 4 show respectively a side view and a bottom view of the locking sleeve of the apparatus of Figure 2,
  • FIG. 5 represents an alternative embodiment of the locking sleeve according to the invention.
  • FIG. 6 illustrates another embodiment of a surgical osteosynthesis apparatus according to the invention.
  • Figure 2 illustrates in section a surgical osteosynthesis apparatus according to the invention. It comprises a plate 2 provided with two holes (only one of which has been shown) intended each to receive a pin 8 to screw into a bone part 4.
  • the apparatus may also comprise an intermediate sleeve 6. This, although not essential to the invention, is advantageous in that it allows a better dimensional control of the hole receiving the locking sleeve, that if the locking sleeve 10 were screwed directly into the hole made by the practitioner in the plate 2.
  • the locking sleeve comprises at least one slot in its lower part.
  • the locking sleeve may comprise 4 slots as shown in the side view of FIG. 3 (only two slots are visible) or in the bottom view of FIG.
  • intermediate sleeve 6 and the locking sleeve 10 threadably cooperate when the locking sleeve is screwed into the hole defined by the intermediate sleeve.
  • the locking sleeve 10 is provided in its upper part with a gripping means 12 adapted to be rotated by means of a screwdriver. This forms a top tool but is not part of the surgical fixation apparatus 1 after it was set up. After the bushing has been screwed in, its upper part is sheared off at a circular area of least resistance 14.
  • each of the two sockets has a thread. We understand that this is not an obligation. It suffices that one of the bushings has a thread and that the other bushing is in a softer material so that the thread bit in this other bush.
  • non-hardened 316L steel which has a tensile strength of the order of 45 kg / mm 2
  • the other sleeve hardened 316L steel which has a tensile strength of the order of 145 kg / mm.2. It is also possible to use the same steel for the two sleeves and to harden one of them, at least in its part intended to cooperate with the other bushing, by a carbon treatment.
  • the locking sleeve 10 has starting from its lower face (that facing the bone portion) and upwardly an outer envelope that grows.
  • the diameter D2 of the locking sleeve in its lower part is smaller than the diameter D3 in its upper part.
  • the casing of the socket may be conical or hemispherical.
  • variable casing of the locking bushing 10 can be obtained either by using a variable diameter bushing and a constant threading, as shown in FIG. 2, or by using a constant diameter bush but with a progressive thread, this is that is, the thread is radially larger in the upper part of the bushing than in the lower part thereof, as shown in FIG.
  • FIG. 6 shows another embodiment of an apparatus according to the invention comprising a plate 2, a pin 8 screwed into a bone part 4, and a locking sleeve 10 having a slot 16 which, in the example shown, extends over the entire height of this sleeve.
  • the hemispherical shape of the locking sleeve is particularly interesting in that it allows a effective blocking even when the spindle is not perpendicular to the plane of the plate.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
EP07823488A 2006-09-08 2007-09-07 Operationsgerät für osteosynthese Withdrawn EP2066248A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0607873A FR2905589B1 (fr) 2006-09-08 2006-09-08 Appareil chirurgical pour osteosynthese.
PCT/FR2007/001450 WO2008029032A2 (fr) 2006-09-08 2007-09-07 Appareil chirurgical pour ostéosynthèse

Publications (1)

Publication Number Publication Date
EP2066248A2 true EP2066248A2 (de) 2009-06-10

Family

ID=37966469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07823488A Withdrawn EP2066248A2 (de) 2006-09-08 2007-09-07 Operationsgerät für osteosynthese

Country Status (9)

Country Link
US (2) US20100042161A1 (de)
EP (1) EP2066248A2 (de)
JP (1) JP5456472B2 (de)
CN (1) CN101522125A (de)
BR (1) BRPI0716591A2 (de)
CA (1) CA2662767A1 (de)
FR (1) FR2905589B1 (de)
MX (1) MX2009002573A (de)
WO (1) WO2008029032A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9615866B1 (en) 2004-10-18 2017-04-11 Nuvasive, Inc. Surgical fixation system and related methods
FR2905589B1 (fr) * 2006-09-08 2009-04-17 Alexandre Worcel Appareil chirurgical pour osteosynthese.
FR2924918B1 (fr) * 2007-12-13 2010-09-03 Alexandre Worcel Douille de blocage pour un dispositif d'osteosynthese et dispositif d'osteosynthese comprenant une telle douille
US8556943B2 (en) * 2007-12-13 2013-10-15 Alexandre Worcel Lock ring for osteosynthesis device and osteosynthesis device including such ring
FR2926975B1 (fr) 2008-02-01 2010-03-26 Alexandre Worcel Dispositif d'osteosynthese a moyens de fixation rapides
USD734853S1 (en) 2009-10-14 2015-07-21 Nuvasive, Inc. Bone plate
FR2975889B1 (fr) * 2011-06-06 2013-07-05 Alexandre Worcel Dispositif d'osteosynthese a plaque et broches
US9510880B2 (en) 2013-08-13 2016-12-06 Zimmer, Inc. Polyaxial locking mechanism
FR3112678B1 (fr) * 2020-07-27 2022-11-11 Newclip Int Dispositif d’ostéosynthèse comprenant au moins une broche de fixation

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891477A (en) * 1971-09-09 1975-06-24 Mangrove Enterprise Inc Material treatment by cryogenic cooling
FR2632029B1 (fr) * 1988-05-30 1990-09-07 Surer Patrick Dispositif de fixation d'une piece sur un support notamment d'un implant sur un os
SE509703C2 (sv) * 1995-02-07 1999-03-01 Sven Olerud Två anordningar för låsning av två implantatelement till varandra
WO1998038010A1 (en) * 1997-02-28 1998-09-03 Sofamor Danek Properties, Inc. Recessed drive fastener and cooperable driving tool
US5954722A (en) * 1997-07-29 1999-09-21 Depuy Acromed, Inc. Polyaxial locking plate
US5904683A (en) * 1998-07-10 1999-05-18 Sulzer Spine-Tech Inc. Anterior cervical vertebral stabilizing device
US6235033B1 (en) * 2000-04-19 2001-05-22 Synthes (Usa) Bone fixation assembly
WO2003055401A1 (de) * 2001-12-24 2003-07-10 Synthes Ag Chur Vorrichtung für die osteosynthese
FR2849766B1 (fr) * 2003-01-15 2005-03-18 Christian Dongar Dispositif de blocage d'une broche d'osteosynthese dans une piece osseuse
US7235101B2 (en) * 2003-09-15 2007-06-26 Warsaw Orthopedic, Inc. Revisable prosthetic device
US20040204712A1 (en) * 2003-04-09 2004-10-14 Eric Kolb Bone fixation plates
US7270679B2 (en) * 2003-05-30 2007-09-18 Warsaw Orthopedic, Inc. Implants based on engineered metal matrix composite materials having enhanced imaging and wear resistance
US6945975B2 (en) * 2003-07-07 2005-09-20 Aesculap, Inc. Bone fixation assembly and method of securement
AU2003250708B2 (en) * 2003-08-08 2008-09-11 Synthes Gmbh Clamping device
FR2905589B1 (fr) * 2006-09-08 2009-04-17 Alexandre Worcel Appareil chirurgical pour osteosynthese.
US8556943B2 (en) * 2007-12-13 2013-10-15 Alexandre Worcel Lock ring for osteosynthesis device and osteosynthesis device including such ring
FR2926975B1 (fr) * 2008-02-01 2010-03-26 Alexandre Worcel Dispositif d'osteosynthese a moyens de fixation rapides

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008029032A3 *

Also Published As

Publication number Publication date
FR2905589A1 (fr) 2008-03-14
US20110060371A1 (en) 2011-03-10
US20100042161A1 (en) 2010-02-18
WO2008029032A2 (fr) 2008-03-13
JP5456472B2 (ja) 2014-03-26
CA2662767A1 (fr) 2008-03-13
JP2010502335A (ja) 2010-01-28
MX2009002573A (es) 2009-10-28
FR2905589B1 (fr) 2009-04-17
WO2008029032A3 (fr) 2009-03-05
CN101522125A (zh) 2009-09-02
BRPI0716591A2 (pt) 2013-12-03

Similar Documents

Publication Publication Date Title
EP2066248A2 (de) Operationsgerät für osteosynthese
EP0392927B1 (de) Wirbelsäulenimplantat für Osteosesyntheseeinrichtung
CA2835358C (fr) Dispositif d'osteosynthese a plaque et broches
FR2916624A1 (fr) Vis a os, notamment d'osteosynthese
FR2699065A1 (fr) Vis autocompressive pour le traitement des fractures épiphysaires et/ou ostéo-chondrales.
EP2405837A1 (de) Wirbelsäulenimplantat mit arretierbarer patella-verbindung
FR3093637A3 (fr) Ensemble formé par une embase d'ancrage osseux faisant partie d'une prothèse d'articulation et par au moins une vis de fixation de cette embase à un os
EP0323429A1 (de) Klemmschraube für Knochenplatte und Verfahren zur Herstellung
FR3000664A3 (fr) Vis a os
EP2237730B1 (de) Osteosynthesevorrichtung mit schnellbefestigungsmitteln
FR2735677A1 (fr) Ensemble tournevis et vis destine a la microchirurgie du type maxillo-faciale
WO1996039971A1 (fr) Bague d'osteosynthese utilisable en combinaison avec une broche ou une vis, et ancillaire pour sa mise en compression
EP2229111B1 (de) Blockierungsring für eine osteosynthesevorrichtung und osteosynthesevorrichtung mit einem solchen ring
FR3000662A3 (fr) Vis a os auto-foreuse et auto-taraudeuse
FR2844701A1 (fr) Materiel d'osteosynthese pour os longs, notamment pour l'osteosynthese d'un radius ou d'un cubitus
FR2897545A1 (fr) Mandrin porte-outil pour l'equipement d'une machine tournante
EP3380035B1 (de) Bohrer für kortikalen knochen des kieferknochens
EP1138266A1 (de) System zum Festhalten zweier Knochenteile relativ zueinander
FR2768781A1 (fr) Ensemble de vis et de mandrin relies l'un a l'autre par un pont secable
FR2906708A1 (fr) Procede d'obtention d'un implant endo-osseux comportant des degagements axialement etendus d'osteo-integration
WO2009153486A1 (fr) Dispositif pour fixer un corps prothetique ou d'osteosynthese a un os
EP3003183A1 (de) Osteosynthesevorrichtung mit einer cervico-cephalon-schraube
FR2932078A1 (fr) Dispositif de mise en place d'une vis sans tete, notamment pour la mise en place d'une vis a usage chirurgical dans un os
FR2917285A3 (fr) Vis a os.
FR3124692A1 (fr) Vis d’ancrage osseux pour dispositif d’ostéosynthèse, ensemble chirurgical pour la connexion de ladite vis audit dispositif d’ostéosynthèse, et lot d’instruments pour la pose dudit ensemble chirurgical.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090403

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LAUMONIER, NICOLAS

Owner name: WORCEL, JULIA

Owner name: LAUMONIER, BRUNO

Owner name: PAOLI, EDOUARD

Owner name: LAUMONIER, YVES

Owner name: PAOLI, ALBERT

Owner name: LAUMONIER, REMI

Owner name: WORCEL, MANUEL

Owner name: PAOLI, MYRIAM

Owner name: WORCEL, ALEXANDRE

Owner name: LAUMONIER, ALAIN

Owner name: LOMBARDO-FIAULT, BERNARD

Owner name: ATELIERS LAUMONIER, SOCIETE PAR ACTIONS SIMPLIFIEE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PAOLI, EDOUARD

Inventor name: PAOLI, ALBERT

Inventor name: LAUMONIER, REMI

Inventor name: LAUMONIER, ALAIN

Inventor name: WORCEL, JULIA

Inventor name: LAUMONIER, NICOLAS

Inventor name: PAOLI, MYRIAM

Inventor name: LAUMONIER, YVES

Inventor name: WORCEL, ALEXANDRE

Inventor name: LAUMONIER, BRUNO

Inventor name: ATELIERS LAUMONIER, SOCIETE PAR ACTIONS SIMPLIFIEE

Inventor name: WORCEL, MANUEL

Inventor name: LOMBARDO-FIAULT, BERNARD

17Q First examination report despatched

Effective date: 20130612

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150401