FR2792185A1 - Bone fixation plate fixing screw has rounded head on screw and rounded recess in bone fixing plate to accommodate angular fixing of screw - Google Patents

Bone fixation plate fixing screw has rounded head on screw and rounded recess in bone fixing plate to accommodate angular fixing of screw Download PDF

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Publication number
FR2792185A1
FR2792185A1 FR9905061A FR9905061A FR2792185A1 FR 2792185 A1 FR2792185 A1 FR 2792185A1 FR 9905061 A FR9905061 A FR 9905061A FR 9905061 A FR9905061 A FR 9905061A FR 2792185 A1 FR2792185 A1 FR 2792185A1
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Prior art keywords
screw
fixing
head
plate
workpiece
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FR9905061A
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French (fr)
Inventor
Robert Porcher
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NUMEDIC
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8033Cortical 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
    • A61B17/8042Cortical 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 the additional component being a cover over the screw head
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06Specially-shaped heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B5/00Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/025Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread specially designed to compensate for misalignement or to eliminate unwanted play

Abstract

The bone fixation plate fixing screw (2) has a rounded head (6) and the bone fixation plate has a matching rounded opening (3) recess to receive the head of the screw. The rounded sections allow reliable anchoring even of the screw is at an angle.

Description

La présente invention concerne un dispositif de solidarisation d'une pièce The present invention relates to a securing device of a part

sur un support à l'aide d'au moins un organe de5 fixation affectant la forme d'une vis traversant un orifice de on a support with at least one fixing member of5 having the shape of a screw passing through an orifice

ladite pièce pour venir se visser dans la matière du support. said piece to be screwed into the support material.

Elle concerne plus particulièrement un dispositif appliqué au domaine médical, en particulier au domaine de la chirurgie orthopédique, ce dispositif permettant la solidarisation d'une plaque généralement en métal à la masse osseuse constituée It relates more particularly to a device applied to the medical field, particularly in the field of orthopedic surgery, this device allowing connection of a plate usually metal to bone mass constituted

d'au moins un os. at least one bone.

La fixation d'une plaque à un support s'effectue généralement au moyen de vis traversant des orifices de la pièce pour se visser dans des taraudages usinés dans le support. Attaching a plate to a support is generally carried out by means of screws passing through the workpiece openings to be screwed into threaded bores machined in the support. La qualité de la fixation de la pièce au support est fonction notamment de l'orientation des vis dans le support et du mode de verrouillage des vis au support, généralement obtenu par une application forcée de la pièce sur le support sous l'effet d'efforts de traction exercés par les vis. The quality of the fixation of the piece to the support is a function of the orientation of the screw in the holder and the lock mode of the screws to the support, generally obtained by a forced application of the workpiece on the support under the effect of tensile forces exerted by the screws. Pour obtenir un ancrage parfait, les vis ne s'étendent pas parallèlement les unes aux autres mais sont au contraire à allure divergente de telle sorte qu'une traction normale à la plaque ne génère aucun arrachement de cette dernière. For perfect anchor bolts do not extend parallel to each other but are instead looking to divergent so that a normally-drawn plate generates no tearing of the latter. Un défaut courant de ces systèmes de fixation vient du fait que la matière du support est une matière osseuse qui s'altère à l'interface avec la pièce, la force de frottement entre pièce et support diminue jusqu'à devenir nulle, ce qui rend la pièce mobile sous l'action d'efforts exercés sur cette dernière et peut provoquer l'apparition d'un jeu de la vis dans le support puis, à la longue, son arrachement. A common fault of these binding systems is that the support material is a bone material that alters the interface with the part, the friction force between the support piece and decreases to zero, making the movable part under the action of forces exerted on the latter and can cause the appearance of a set of the screw into the substrate and, in the long run its detachment. Ce problème avait d'ores et déjà été abordé dans le brevet FR-A-2.739.151 et dans les This issue had already been addressed already in FR-A-2739151 and in the

brevets FR 2 632 029 et EP 0 345 133. Patents FR 2,632,029 and EP 0,345,133.

Ces brevets proposent un dispositif de verrouillage de la vis dans la pièce, qui ne dépende pas d'une force de compression qui les appliquerait l'un contre l'autre. These patents propose a screw locking device in the room, which is not dependent of a compressive force applied the one against the other. Les solutions proposées prévoient la possibilité d'orientation divergente des vis, soit par un aménagement dans la pièces d'orifices d'axes non orthogonaux à la surface de la pièce, soit par une déformation de la pièce rendant les axes des orifices divergents. Proposed solutions include the possibility of diverging orientation of the screws, or by an arrangement in the parts of non-orthogonal axes of orifices in the surface of the workpiece or by a deformation of the part making the axes of the diverging holes. Le chirurgien ne dispose alors d'aucune liberté concernant l'orientation de la vis à fixer. The surgeon then has no freedom regarding the direction of the screw to fix. Or, cette orientation prédéterminée peut parfois s'avérer incompatible avec des Now this predetermined orientation can sometimes be inconsistent with

contraintes anatomiques. anatomical constraints.

Par ailleurs, les dispositifs existants ne permettent pas un rapprochement optimal de la plaque et du support sans nuire à la coaxialité entre l'axe de l'orifice ménagé dans la pièce et axe du taraudage dans le support, ce qui nuit à la bonne Furthermore, existing devices do not permit an optimal matching of the plate and the carrier without impairing the concentricity between the axis of the hole in the workpiece and the thread axis in the support, which is detrimental to good

fixation de la vis dans la pièce. fastening the screw into the workpiece.

Un but de la présente invention est donc de proposer un dispositif de solidarisation qui reste stable lorsque la matière du support est susceptible de se dégrader à l'interface pièce-support, et qui offre une meilleure résistance à l'arrachement, et dont la conception permette une coincidence parfaite de la tête de la vis, quelle que soit l'orientation de l'axe de taraudage dans la matière de support. An object of the present invention is therefore to provide a fastening device that is stable when the support material is likely to degrade the support piece interface, which offers better resistance to tearing, and whose design allows a perfect coincidence of the head of the screw, whatever the orientation of the drilling axis in the support material. A cet effet, elle a pour objet un dispositif de solidarisation d'une pièce, telle qu'une plaque d'ostéosynthèse, sur un support, tel qu'une masse osseuse, à l'aide d'au moins une vis de fixation comportant une tête et une tige filetée, vissée dans la matière du support, cette pièce comportant un passage à travers lequel passe la vis, caractérisé en ce qu'il comprend un moyen supplémentaire de blocage coopérant avec des moyens complémentaires prévus sur la pièce, pour bloquer la tête de la vis par rapport à ladite pièce, dans une orientation qui peut ne pas être orthogonale au plan de la pièce. For this purpose, it relates to a piece of a securing device, such as an osteosynthesis plate, on a support, such as a bone mass, using at least one fixing screw having a head and a threaded rod, screwed into the support material, this piece having a passage through which passes the screw, characterized in that it comprises additional locking means cooperating with complementary means provided on the workpiece, to block the head of the screw relative to said workpiece in a direction which may not be orthogonal to the workpiece plane. A cet effet, la tête de la vis affecte partiellement la forme d'une sphère, coopérant avec un alésage hémisphérique concave, de rayon égal à celui de la tête de la vis, réalisé dans la partie de l'orifice ménagé dans la partie de la pièce proche du support, la reste de la section de cet alésage étant muni d'un taraudage coopérant avec le filetage un organe de fixation supplémentaire dans l'axe duquel est ménagé un alésage hémisphérique concave de rayon égal celui de la tête de la vis coopérant avec cette dernière, de manière à permettre une immobilisation de la vis suivant une orientation For this purpose, the head of the screw part has the shape of a sphere cooperating with a concave hemispherical hole, of radius equal to that of the head of the screw, made in the part of the hole in the part of close part of the support, the remainder of this section of this bore being provided with an internal thread cooperating with the thread an additional fastener into the axis of which is formed a concave hemispherical bore radius equal to that of the head of the screw cooperating with the latter, so as to allow immobilisation of the screw in an orientation

angulaire quelconque à l'intérieur de l'orifice de la pièce. any angle within the workpiece opening.

Grâce à cette conception du dispositif, le chirurgien positionne la vis en per-opératoire, suivant l'orientation voulue, tout en garantissant une bonne tenue dans le temps de With this design of the device, the surgeon positions the screw during surgery, according to the desired orientation, while ensuring good performance in time

la vis. the opinion.

Par ailleurs, le verrouillage de la vis est garanti indépendamment de la nature et de la qualité de l'interface Furthermore, the screw lock is guaranteed regardless of the nature and quality of the interface

entre pièce et support. between part and support.

L'invention sera bien comprise à la lecture de la description The invention will be better understood from reading the description

suivante d'un exemple de réalisation, en référence aux dessins annexés dans lesquels: la figure 1 représente une vue de face partiellement en coupe d'un dispositif, objet de l'invention, à l'état non assemblé des éléments le constituant; Next an example of embodiment, with reference to the accompanying drawings in which: Figure 1 shows a front view partially in section of a device, according to the invention, in the unassembled state of the constituent elements; la figure 2 représente une vue de face partiellement en coupe du dispositif de la figure 1 à l'état assemblé de la vis dans le support et à travers la plaque; 2 shows a front view partially in section of the device of Figure 1 in the assembled state of the screw into the support and through the plate; la figure 3 représente une vue de face partiellement en coupe du dispositif de la figure 1 à l'état assemblé De manière en soi connue, le dispositif, objet de l'invention, est constitué d'une pièce 1 apte à être solidarisée sur un support S au moyen d'au moins un organe de fixation 2. Comme mentionné ci-dessus, ce dispositif est plus particulièrement destiné au domaine médical. 3 shows a partially sectional face of the device of Figure 1 in the assembled In a manner known per se condition, the device, object of the invention consists of a component 1 adapted to be secured on a support S by means of at least one fixing member 2. As mentioned above, this device is more particularly intended for medical use. Dans ce cas, la pièce 1 est un implant, affectant généralement la forme d'une plaque et le support S au moins un os. In this case, the coin 1 is an implant, generally having the shape of a plate and the support S at least one bone. L'organe de fixation 2 est quant à lui constitué par une vis. The fixing member 2 is in turn constituted by a screw. Cette vis 2 qui assure la solidarisation de la pièce 1 sur le support S traverse un orifice 3 de la pièce 1 et vient s'ancrer dans le support S. L'orifice 3 de cette pièce 1 est muni d'un alésage comportant une partie hémisphérique concave 4 de rayon égal à celui de la tête 6 de la vis 2 et un taraudage 5. La partie hémisphérique concave 4 de l'alésage 3 de la plaque 1 est conçue pour recevoir la tête sphérique 6 de la vis 2. L'alésage taraudé 5 de la pièce 1 est destiné à venir en prise avec un filetage 7 d'un organe supplémentaire 8, pouvant encore être appelé contre vis, dans l'axe de laquelle est ménagé un alésage hémisphérique concave 9 de rayon égal à celui de la tête 6 de la vis 2. Le serrage de la contre vis 8 sur la tête 6 de la vis 2, laquelle est vissée dans le support S à travers la plaque 1, a pour effet d'appliquer la tête 6 de la vis 2 dans l'alésage hémisphérique 4 de ladite pièce. This screw 2 which ensures the joining of the piece 1 on the support S passes through an orifice 3 of the part 1 and is anchored in the support S. The 3 of the piece 1 port is provided with a bore having a portion hemispherical concave 4 of radius equal to that of the head 6 of the screw 2 and an internal thread 5. the concave hemispherical portion 4 of the bore 3 of the plate 1 is designed to receive the spherical head 6 of the screw 2. the threaded bore 5 of the part 1 is intended to engage with an additional 7 organ thread 8, which can still be called against screw, the axis of which is provided a concave hemispherical bore 9 of radius equal to that of the head 6 of the screw 2. the tightening of the screw 8 against the head 6 of the screw 2, which is screwed into the support S through the plate 1, has the effect of applying the head 6 of the screw 2 in the hemispherical bore 4 of said part. L'effort de serrage de la contre vis 8 permet d'obtenir une immobilisation de la tête 6 de la vis 2 dans la plaque 1, sans que cette immobilisation dépende d'une compression de la plaque 1 sur le support S. Cette immobilisation en rotation est obtenue par friction des surfaces de la tête de vis 6 et des alésage The clamping force of the screw against 8 allows to obtain immobilization of the head 6 of the screw 2 in the plate 1, without this immobilization depends on a compression of the plate 1 on the support S. The immobilization rotation is obtained by friction surfaces of the screw head 6 and bore

hémisphériques 4 et 9 des plaques 1 et contre vis 8. hemispherical 4 and 9 of the plates 1 and against screw 8.

Pour permettre à la tête 6 de la vis 2 de s'orienter à l'intérieur de l'orifice 3 de la pièce 1 à la manière d'une rotule, le profil externe de la tête 6 de la vis 2 et le profil interne 4 de l'orifice 3 de la pièce 1 sont de préférence de forme complémentaire sphérique. To allow the head 6 of the screw 2 to move inside the orifice 3 of the piece 1 in the manner of a ball joint, the outer profile of the head 6 of the screw 2 and the inner profile 4 of the opening 3 of the piece 1 are preferably spherical complementary shape. Dans l'exemple représenté aux figures 1, 2 et 3, la tête 6 de la vis 2 affecte la forme d'une sphère tronquée suivant des plans symétriques perpendiculaires à l'axe de la vis 2. Ainsi, pour la fixation de la pièce 1 sur un support S, le chirurgien pratique de la manière suivante. In the example shown in Figures 1, 2 and 3, the head 6 of the screw 2 has the shape of a truncated sphere following symmetrical planes perpendicular to the axis of the screw 2. Thus, for fixing the piece 1 of a support S, the surgeon performs the following manner. Il procède à travers la plaque au perçage d'un taraudage dans la matière osseuse, l'axe de ce taraudage étant choisi pour obtenir une orientation de la vis telle qu'elle résiste à des forces d'arrachement importantes. It proceeds through the plate to the bore with an internal thread in the bone tissue, the axis of the thread being selected to obtain an orientation of the screw as it is resistant to significant peel forces. La vis 2 est alors introduite à travers la plaque 1 dans l'axe de taraudage de l'os. The screw 2 is then inserted through the plate 1 in the tapping axis of the bone. A la fin du vissage de la vis 2, la tête 6 de cette vis va coopérer avec la partie hémisphérique concave 4 de l'alésage 3. La mise en place, puis le serrage de la contre vis 8 va immobiliser la tête 6 de la vis 2 dans la pièce 1, par friction des surfaces de la tête 6 de la vis 2 et des alésage hémisphériques 4 et 9 des plaques 1 et contre vis 8. Cette vis 2 va alors s'immobiliser et se verrouiller dans une position At the end of screwing of the screw 2, the head 6 of the screw will cooperate with the concave hemispherical portion 4 of the bore 3. The introduction and the clamping screw 8 against the will immobilize the head 6 of the screw 2 in the part 1, by friction of the surfaces of the head 6 of the screw 2 and hemispherical bore 4 and 9 of the plates 1 and against screw 8. the screw 2 will then immobilize and lock into a position

d'orientation donnée. of given orientation.

Il est à noter qu'un rapprochement optimal de la pièce 1 du support S n'induit pas de défaut de coaxialité entre l'alésage 3 de la plaque 1 et celui de la vis 2, ces alésages de forme It should be noted that an optimal approximation of the part 1 of the support S does not induce error in coaxiality between the bore 3 of the plate 1 and that of the screw 2, the form of bores

sphérique ne comportant pas d'axe. spherical having no axis.

Claims (3)

    REVENDICATIONS
  1. 1. Dispositif de solidarisation d'une pièce (1), telle qu'une plaque d'ostéosynthèse, sur un support (S), tel qu'une masse osseuse, à l'aide d'au moins un organe de fixation (2) affectant la forme d'une vis traversant un orifice (3) de ladite pièce (1) pour venir se visser dans la matière du support (S), l'orifice (3) de la pièce (1) étant muni d'un alésage comportant une partie hémisphérique concave (4) de rayon égal à celui de la tête (6) de la vis (2), et d'un taraudage (5) destiné à coopérer avec un filetage (7) d'un organe supplémentaire de blocage (8) de la tête (6) de la vis (2) par rapport à ladite pièce (1), caractérisé en ce que l'organe (7) comporte un alésage de forme hémisphérique concave (9) de rayon égal à celui de la tête (6) de la vis (2), permettant le blocage de la tête (6) de la vis (2) dans 1. A device for securing a workpiece (1), such as an osteosynthesis plate, on a support (S), such as a bone mass, using at least one fastening member (2 ) having the shape of a screw passing through an orifice (3) of said workpiece (1) to be screwed into the material of the support (S), the orifice (3) of the workpiece (1) being provided with a bore having a concave hemispherical portion (4) of radius equal to that of the head (6) of the screw (2) and a thread (5) intended to cooperate with a thread (7) of an additional member lock (8) of the head (6) of the screw (2) relative to said workpiece (1), characterized in that the member (7) has a concave hemispherical shape bore (9) of radius equal to that of the head (6) of the screw (2), allowing the blocking of the head (6) of the screw (2) in
    une orientation quelconque de la vis (2). any orientation of the screw (2).
  2. 2. Dispositif de solidarisation selon la revendication 1, caractérisé en ce que le moyen supplémentaire de blocage (8) 2. Fixing device according to claim 1, characterized in that the additional locking means (8)
    est démontable. is removable.
  3. 3. Dispositif de solidarisation selon la revendications 1 ou 3. Fixing device according to claims 1 or
    2, caractérisé en ce que la face frontale de l'organe de fixation supplémentaire (8) est pourvue d'éléments en relief ou en saillie tels que des rainures adaptés à coopérer avec un outil d'entraînement en rotation pour permettre un serrage dans le taraudage (5) ménagé dans l'alésage (3) de la pièce (1). 2, characterized in that the front side of the additional fastening member (8) is provided with elements in relief or projecting such as grooves adapted to cooperate with a rotary drive tool for a misfeed in the thread (5) in the bore (3) of the workpiece (1).
FR9905061A 1999-04-19 1999-04-19 Bone fixation plate fixing screw has rounded head on screw and rounded recess in bone fixing plate to accommodate angular fixing of screw Withdrawn FR2792185A1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
FR9905061A FR2792185A1 (en) 1999-04-19 1999-04-19 Bone fixation plate fixing screw has rounded head on screw and rounded recess in bone fixing plate to accommodate angular fixing of screw

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004006802A2 (en) * 2002-07-16 2004-01-22 Sdgi Holdings, Inc. Plating system for stabilizing a bony segment
EP1560535A2 (en) * 2002-10-28 2005-08-10 Blackstone Medical, Inc. Bone plate assembly provided with screw locking mechanisms
FR2915081A1 (en) * 2007-04-17 2008-10-24 D L P Sarl Implantable orthopedic device constitutes a support structure provided with at least one port associated with a nut, for the passage of a fastening screw.
US7678113B2 (en) 2005-04-19 2010-03-16 Warsaw Orthopedic, Inc. Antero-lateral plating systems and methods for spinal stabilization
US7758620B2 (en) 2002-09-24 2010-07-20 Stryker Trauma Sa Device for connecting a screw to a support plate
US7794482B2 (en) 2001-12-24 2010-09-14 Synthes Usa, Llc Device for osteosynthesis
WO2010121388A1 (en) * 2009-04-20 2010-10-28 Creaholic S.A. Fastening apparatus for surgical retaining systems
USD734853S1 (en) 2009-10-14 2015-07-21 Nuvasive, Inc. Bone plate
US9615866B1 (en) 2004-10-18 2017-04-11 Nuvasive, Inc. Surgical fixation system and related methods
WO2018083407A1 (en) 2016-11-04 2018-05-11 Neosteo Polyaxial bone fixation assembly

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7794482B2 (en) 2001-12-24 2010-09-14 Synthes Usa, Llc Device for osteosynthesis
US8070784B2 (en) 2002-07-16 2011-12-06 Warsaw Orthopedic, Inc. Plating system for stabilizing a bony segment
WO2004006802A3 (en) * 2002-07-16 2004-04-29 Sdgi Holdings Inc Plating system for stabilizing a bony segment
US6989012B2 (en) 2002-07-16 2006-01-24 Sdgi Holdings, Inc. Plating system for stabilizing a bony segment
WO2004006802A2 (en) * 2002-07-16 2004-01-22 Sdgi Holdings, Inc. Plating system for stabilizing a bony segment
US7758620B2 (en) 2002-09-24 2010-07-20 Stryker Trauma Sa Device for connecting a screw to a support plate
EP1560535A4 (en) * 2002-10-28 2006-11-15 Blackstone Medical Inc Bone plate assembly provided with screw locking mechanisms
US8439957B2 (en) 2002-10-28 2013-05-14 Blackstone Medical, Inc. Bone plate assembly provided with screw locking mechanisms
EP1560535A2 (en) * 2002-10-28 2005-08-10 Blackstone Medical, Inc. Bone plate assembly provided with screw locking mechanisms
US9241749B2 (en) 2002-10-28 2016-01-26 Blackstone Medical, Inc. Bone plate assembly provided with screw locking mechanisms
US9615866B1 (en) 2004-10-18 2017-04-11 Nuvasive, Inc. Surgical fixation system and related methods
US7678113B2 (en) 2005-04-19 2010-03-16 Warsaw Orthopedic, Inc. Antero-lateral plating systems and methods for spinal stabilization
US8109980B2 (en) 2005-04-19 2012-02-07 Kyphon Sarl Antero-lateral plating systems and methods for spinal stabilization
US8470007B2 (en) 2005-04-19 2013-06-25 Warsaw Orthopedic, Inc. Antero-lateral plating systems and methods for spinal stabilization
WO2008145902A2 (en) * 2007-04-17 2008-12-04 D.L.P. Implantable orthopaedic device composed of a support structure having at least one orifice associated with a nut, for the passage of a locking screw
US8114140B2 (en) 2007-04-17 2012-02-14 D.L.P. Implantable orthopaedic device composed of a support structure having at least one orifice associated with a nut, for the passage of a locking screw
FR2915081A1 (en) * 2007-04-17 2008-10-24 D L P Sarl Implantable orthopedic device constitutes a support structure provided with at least one port associated with a nut, for the passage of a fastening screw.
WO2008145902A3 (en) * 2007-04-17 2009-03-05 D L P Sarl Implantable orthopaedic device composed of a support structure having at least one orifice associated with a nut, for the passage of a locking screw
WO2010121388A1 (en) * 2009-04-20 2010-10-28 Creaholic S.A. Fastening apparatus for surgical retaining systems
US8702764B2 (en) 2009-04-20 2014-04-22 Creaholic S.A. Fastening apparatus for surgical retaining systems
USD754857S1 (en) 2009-10-14 2016-04-26 Nuvasive, Inc. Bone plate
USD734853S1 (en) 2009-10-14 2015-07-21 Nuvasive, Inc. Bone plate
WO2018083407A1 (en) 2016-11-04 2018-05-11 Neosteo Polyaxial bone fixation assembly

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