FR2736537A1 - Intersomatic implant for restoring normal anatomical space between vertebrae, to relieve pressure on nerve roots - Google Patents

Intersomatic implant for restoring normal anatomical space between vertebrae, to relieve pressure on nerve roots Download PDF

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Publication number
FR2736537A1
FR2736537A1 FR9508412A FR9508412A FR2736537A1 FR 2736537 A1 FR2736537 A1 FR 2736537A1 FR 9508412 A FR9508412 A FR 9508412A FR 9508412 A FR9508412 A FR 9508412A FR 2736537 A1 FR2736537 A1 FR 2736537A1
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France
Prior art keywords
implant
cage
vertebrae
nerve roots
relieve pressure
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FR9508412A
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French (fr)
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Individual
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Individual
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Priority to FR9508412A priority Critical patent/FR2736537A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/4465—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30112—Rounded shapes, e.g. with rounded corners
    • A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30153—Convex polygonal shapes rectangular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30158—Convex polygonal shapes trapezoidal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30774—Apertures or holes, e.g. of circular cross section internally-threaded
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • A61F2230/0019—Angular shapes rectangular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0017—Angular shapes
    • A61F2230/0026—Angular shapes trapezoidal

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

The implant is in the form of a crescent (6,7) fitting the flat form of vertebral body. It has a crenellated surface (4) on its lower face and upper space, and having a central cavity to receive the transplant. There are fine rods (5) on the lower face for stiffening of the transplant and its frame.

Description

CAGE DE STABILISATION INTER CORPOREALE
La présente invention concerne un implant intersomatique creux destiné à restaurer un espace anatomique normal entre deux corps vertébraux, ouvrant les trous de conjugaisons et décomprimant les racines nerveuses.INTER CORPOREAL STABILIZATION CAGE
The present invention relates to a hollow interbody implant intended to restore a normal anatomical space between two vertebral bodies, opening the conjugation holes and decompressing the nerve roots.

Par son effet distractant, la présente invention participe à la réduction des spondylolisthésis dégénératifs.By its distracting effect, the present invention participates in the reduction of degenerative spondylolisthesis.

Sa forme géométrique elliptique en croissant-s'adaptant à la courbe anatomique du corps vertébral, offre une surface de contact optimisée avec les plateaux, et de ce fait, une stabilisation et une prise de greffe privilégiées.Its crescent elliptical geometric shape - adapting to the anatomical curve of the vertebral body, offers an optimized contact surface with the plates, and therefore, stabilization and a preferred graft taking.

On connaît bien ce type de matériel suivant d'autres procédés, en forme de parallépipède rectangle ( US4 834.757), cylindre ( WO 89/12431, W091/06261, US 4.501.269) ovoïde (WO94/17759) ou sphérique (US 4.936.848 ).This type of material is well known according to other methods, in the form of a rectangular parallelepiped (US4 834.757), cylinder (WO 89/12431, W091 / 06261, US 4.501.269) ovoid (WO94 / 17759) or spherical (US 4.936 .848).

Ces dispositifs restituent un espace intersomatique anatomique, mais ne présentent pas une surface greffante et une stabilisation inter-corporéale suffisantes. Par ailleurs, leur implantation reste, pour la plupart, exclusivement postérieure.These devices restore an anatomical intersomatic space, but do not have a sufficient grafting surface and inter-corporeal stabilization. Furthermore, their implantation remains, for the most part, exclusively posterior.

En dernier lieu, plusieurs cas de mobilisation de l'implant ont été rapportés à distance et dans des conditions variables d'implantation.Finally, several cases of implant mobilization have been reported from a distance and under variable implantation conditions.

La présente invention a pour objet de palier ces inconvénients et propose un implant à structure rigide en forme de croissant elliptique muni d'un logement permettant la mise en place de la greffe. Les deux surfaces en contact avec les corps vertébraux adjacents sont ouvertes afin de permettre la fusion osseuse. La part représentée par la structure de l'implant est considérablement réduite au regard de la surface de contact. La qualité et la répartition du pontage osseux s'en trouvent améliorés.The object of the present invention is to overcome these drawbacks and proposes an implant with a rigid structure in the form of an elliptical crescent provided with a housing enabling the graft to be put in place. The two surfaces in contact with the adjacent vertebral bodies are open in order to allow bone fusion. The part represented by the structure of the implant is considerably reduced with regard to the contact surface. The quality and distribution of bone bypass are improved.

La présente invention est munie d'un taraudage à chaque extrémité permettant le positionnement d'un préhenseur-introducteur adapté aux voies chirurgicales antérieure et postérieure.The present invention is provided with a tapping at each end allowing the positioning of a gripper-introducer adapted to the anterior and posterior surgical routes.

Les bords de l'implant en contact avec les corps vertébraux présentent une surface en contre -dépouille perpendiculaires à l'axe de la pièce lui assurant une stabilisation primaire satisfaisante.The edges of the implant in contact with the vertebral bodies have an undercut surface perpendicular to the axis of the part ensuring it a satisfactory primary stabilization.

La forme caractéristique de l'implant limite la possibilité de mobilisation in-situ et notablement, de migration postérieure dans la période qui suit l'implantation. The characteristic shape of the implant limits the possibility of mobilization in situ and notably, of posterior migration in the period following implantation.

La surface inférieure de l'implant présente un procédé d'usinage assurant la préhension et la stabilisation des greffons.The lower surface of the implant has a machining process that grips and stabilizes the grafts.

Un impacteur de forme géométrique égale à la lumiére intérieure de l'implant permet le remplissage et le tassement des greffons dans la structure.An impactor of geometric shape equal to the interior lumen of the implant allows the filling and compaction of the grafts in the structure.

Les surfaces de contact sont paralléles ou angulées à effet lordosant selon le site d'implantation, l'anatomie du rachis et l'indication opératoire.The contact surfaces are parallel or angled with a lordosing effect depending on the site of implantation, the anatomy of the spine and the operating indication.

- La figure 1 représentée en coupe montre les 2 surfaces de contact parallèles (1). - Figure 1 shown in section shows the 2 parallel contact surfaces (1).

A chaque extrémité est réalisé un taraudage ( 3 ) pour le vissage du préhenseur-impacteur.At each end is made a thread (3) for screwing the gripper-impactor.

- La figure 2 montre,en coupe longitudinale, l'angle des surfaces de contact. On voit les contre-dépouilles ( 4 ) permettant la stabilisation primaire de l'implant. Le logement ( 8 ) permet la mise en place des greffons.- Figure 2 shows, in longitudinal section, the angle of the contact surfaces. We see the undercuts (4) allowing the primary stabilization of the implant. The housing (8) allows the placement of grafts.

- La figure 3 montre la cage de face antérieure avec le taraudage pour la mise en place intersomatique.- Figure 3 shows the front cage with the internal thread for interbody placement.

- La figure 4 montre la cage de face postérieure avec le meme taraudage.- Figure 4 shows the rear face cage with the same thread.

- La figure 5 montre la cage vue de dessus. Le rayon ( 7 ) congrue avec la courbe extérieure d'un corps vertébral. La courbe ( 6 ) suit ce profil. La face inférieure ( 2 ) est munie de barettes ( 5 ) permettant de maintenir les greffons en place dans l'implant. - Figure 5 shows the cage seen from above. The radius (7) is congruent with the external curve of a vertebral body. Curve (6) follows this profile. The lower face (2) is provided with bars (5) allowing the grafts to be held in place in the implant.

Claims (4)

REVENDICATIONS 1- Cage intersomatique en forme de croissant ( 6 ) et ( 7 ) épousant la forme du plateau d'un corps vertébral, comprennant une surface dentellée ( 4 ) sur la face inférieure et supérieure, munie d'une cavité centrale ( 8 ) recevant les greffons.1- Intersomatic cage in the shape of a crescent (6) and (7) conforming to the shape of the plateau of a vertebral body, comprising a serrated surface (4) on the lower and upper face, provided with a central cavity (8) receiving grafts. 2 - Cage selon revendication 1 caractérisée par la présence de fines baguettes ( 5 ) sur sa face inférieure ( 2 ) permettant une parfaite solidarisation de la greffe et de son armature.2 - Cage according to claim 1 characterized by the presence of fine rods (5) on its underside (2) allowing perfect attachment of the graft and its frame. 3 - Cage selon revendications 1,2 caractérisée par le dentellage ( 4 ) selon l'angle inverse de l'introduction ménagé sur les rebords de la cage en contact avec les plateaux vertébraux adjacents.3 - Cage according to claims 1,2 characterized by the serration (4) according to the reverse angle of the introduction formed on the edges of the cage in contact with the adjacent vertebral plates. 4 - Cage selon revendications 1,2,3 caractérisée par la présence à chaque extrémité d'un taraudage ( 3 ) permettant l'introduction d'un ancillaire assurant son implantation par voie postérieure ou antérieure. 4 - Cage according to claims 1,2,3 characterized by the presence at each end of a thread (3) allowing the introduction of an ancillary ensuring its implantation by posterior or anterior route.
FR9508412A 1995-07-12 1995-07-12 Intersomatic implant for restoring normal anatomical space between vertebrae, to relieve pressure on nerve roots Withdrawn FR2736537A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9508412A FR2736537A1 (en) 1995-07-12 1995-07-12 Intersomatic implant for restoring normal anatomical space between vertebrae, to relieve pressure on nerve roots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9508412A FR2736537A1 (en) 1995-07-12 1995-07-12 Intersomatic implant for restoring normal anatomical space between vertebrae, to relieve pressure on nerve roots

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FR2736537A1 true FR2736537A1 (en) 1997-01-17

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760355A1 (en) * 1997-03-07 1998-09-11 Serge Schrayer Intersomatic cage, e.g. for fusion of vertebrae or joint bones
EP0916323A1 (en) * 1997-11-12 1999-05-19 Schäfer micomed GmbH Intervertebral implant
WO1999037255A1 (en) * 1998-01-23 1999-07-29 Aesculap Ag & Co. Kg Implant
WO2001070144A1 (en) * 2000-03-22 2001-09-27 Scolio Gmbh Cage-type intervertebral implant
EP1138285A1 (en) * 2000-03-29 2001-10-04 Implant Design AG Spinal cage for insertion between the vertebraes of the spine
WO2001028469A3 (en) * 1999-10-21 2002-01-03 Sdgi Holdings Inc Devices and techniques for a posterior lateral disc space approach
WO2002089712A1 (en) * 2001-05-03 2002-11-14 David Gerber Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
US6579318B2 (en) * 2000-06-12 2003-06-17 Ortho Development Corporation Intervertebral spacer
US6613090B2 (en) * 1998-01-23 2003-09-02 Aesculap Ag & Co. Kg Intervertebral implant
USD493225S1 (en) 2000-06-12 2004-07-20 Ortho Development Corporation Implant
US6764491B2 (en) 1999-10-21 2004-07-20 Sdgi Holdings, Inc. Devices and techniques for a posterior lateral disc space approach
US6830570B1 (en) 1999-10-21 2004-12-14 Sdgi Holdings, Inc. Devices and techniques for a posterior lateral disc space approach
FR2861582A1 (en) * 2003-10-29 2005-05-06 Eurosurgical INTERSOMATIC CAGE FOR LUMBAR FUSION FIRST TRANSFORAMINAL AND CAGE HOLDER DEVICE
US7060096B1 (en) * 1999-11-03 2006-06-13 Tutogen Medical Gmbh Implant consisting of bone material
US7229477B2 (en) * 1999-02-25 2007-06-12 Depuy Acromed, Inc. Spinal fusion implant
EP1889587A2 (en) 2001-08-16 2008-02-20 Biomet Spain Orthopaedics S.L. Intersomatic cage for posterior fusion surgery to the lumbar column and for surgery involving the insertion of a transforaminal implant
US7806932B2 (en) 2003-08-01 2010-10-05 Zimmer Spine, Inc. Spinal implant
US7935148B2 (en) 2006-01-09 2011-05-03 Warsaw Orthopedic, Inc. Adjustable insertion device for a vertebral implant
US8303601B2 (en) 2006-06-07 2012-11-06 Stryker Spine Collet-activated distraction wedge inserter
US8435300B2 (en) 2001-05-03 2013-05-07 DePuy Synthes Products, LLC Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
US9028553B2 (en) 2009-11-05 2015-05-12 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US9345586B2 (en) 2003-08-01 2016-05-24 Zimmer Spine, Inc. Variable angle spinal surgery instrument
US9597198B2 (en) 2006-02-15 2017-03-21 Ldr Medical Transforaminal intersomatic cage for an intervertebral fusion graft and an instrument for implanting the cage
US10022245B2 (en) 2012-12-17 2018-07-17 DePuy Synthes Products, Inc. Polyaxial articulating instrument
US10966843B2 (en) 2017-07-18 2021-04-06 DePuy Synthes Products, Inc. Implant inserters and related methods
US11045331B2 (en) 2017-08-14 2021-06-29 DePuy Synthes Products, Inc. Intervertebral implant inserters and related methods

Cited By (52)

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Publication number Priority date Publication date Assignee Title
FR2760355A1 (en) * 1997-03-07 1998-09-11 Serge Schrayer Intersomatic cage, e.g. for fusion of vertebrae or joint bones
EP0916323A1 (en) * 1997-11-12 1999-05-19 Schäfer micomed GmbH Intervertebral implant
US6562072B1 (en) 1998-01-23 2003-05-13 Aesculap Ag & Co. Kg Implant for insertion between spinal column vertebrae
US6613090B2 (en) * 1998-01-23 2003-09-02 Aesculap Ag & Co. Kg Intervertebral implant
WO1999037255A1 (en) * 1998-01-23 1999-07-29 Aesculap Ag & Co. Kg Implant
US7229477B2 (en) * 1999-02-25 2007-06-12 Depuy Acromed, Inc. Spinal fusion implant
US8491654B2 (en) 1999-10-21 2013-07-23 Warsaw Orthopedic Inc. Devices and techniques for a posterior lateral disc space approach
WO2002091909A2 (en) * 1999-10-21 2002-11-21 Sdgi Holdings, Inc Devices and techniques for a posterior lateral disc space approach
US9107649B2 (en) 1999-10-21 2015-08-18 Warsaw Orothpedic, Inc. Devices and techniques for a posterior lateral disc space approach
US7361193B2 (en) 1999-10-21 2008-04-22 Warsaw Orthopedic, Inc. Devices and techniques for a posterior lateral disc space approach
WO2002091909A3 (en) * 1999-10-21 2003-08-14 Sdgi Holdings Inc Devices and techniques for a posterior lateral disc space approach
US7967863B2 (en) 1999-10-21 2011-06-28 Warsaw Orthopedic, Inc. Devices and techniques for a posterior lateral disc space approach
WO2001028469A3 (en) * 1999-10-21 2002-01-03 Sdgi Holdings Inc Devices and techniques for a posterior lateral disc space approach
US7935124B2 (en) 1999-10-21 2011-05-03 Warsaw Orthopedic, Inc. Devices and techniques for a posterior lateral disc space approach
US7060073B2 (en) 1999-10-21 2006-06-13 Sdgi Holdings, Inc. Devices and techniques for a posterior lateral disc space approach
US6764491B2 (en) 1999-10-21 2004-07-20 Sdgi Holdings, Inc. Devices and techniques for a posterior lateral disc space approach
US7998215B2 (en) 1999-10-21 2011-08-16 Warsaw Orthopedic, Inc. Devices and techniques for a posterior lateral disc space approach
US6830570B1 (en) 1999-10-21 2004-12-14 Sdgi Holdings, Inc. Devices and techniques for a posterior lateral disc space approach
US7060096B1 (en) * 1999-11-03 2006-06-13 Tutogen Medical Gmbh Implant consisting of bone material
US6699288B2 (en) 2000-03-22 2004-03-02 Scolio Gmbh Cage-type intervertebral implant
WO2001070144A1 (en) * 2000-03-22 2001-09-27 Scolio Gmbh Cage-type intervertebral implant
EP1138285A1 (en) * 2000-03-29 2001-10-04 Implant Design AG Spinal cage for insertion between the vertebraes of the spine
USD494274S1 (en) 2000-06-12 2004-08-10 Ortho Development Corporation Implant
USD493225S1 (en) 2000-06-12 2004-07-20 Ortho Development Corporation Implant
US6579318B2 (en) * 2000-06-12 2003-06-17 Ortho Development Corporation Intervertebral spacer
USRE46647E1 (en) 2001-05-03 2017-12-26 DePuy Synthes Products, Inc. Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
AU2002309636B2 (en) * 2001-05-03 2005-06-09 Synthes Gmbh Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
US6719794B2 (en) 2001-05-03 2004-04-13 Synthes (U.S.A.) Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
US8690949B2 (en) 2001-05-03 2014-04-08 DePuy Synthes Products, LLC Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
WO2002089712A1 (en) * 2001-05-03 2002-11-14 David Gerber Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
US8435300B2 (en) 2001-05-03 2013-05-07 DePuy Synthes Products, LLC Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
EP1889587A3 (en) * 2001-08-16 2008-04-09 Biomet Spain Orthopaedics S.L. Intersomatic cage for posterior fusion surgery to the lumbar column and for surgery involving the insertion of a transforaminal implant
EP1889587A2 (en) 2001-08-16 2008-02-20 Biomet Spain Orthopaedics S.L. Intersomatic cage for posterior fusion surgery to the lumbar column and for surgery involving the insertion of a transforaminal implant
US10327919B2 (en) 2003-08-01 2019-06-25 Zimmer Spine, Inc. Variable angle spinal surgery instrument
US7806932B2 (en) 2003-08-01 2010-10-05 Zimmer Spine, Inc. Spinal implant
US8292959B2 (en) 2003-08-01 2012-10-23 Zimmer Spine, Inc. Spinal implant
US9345586B2 (en) 2003-08-01 2016-05-24 Zimmer Spine, Inc. Variable angle spinal surgery instrument
WO2005041825A1 (en) * 2003-10-29 2005-05-12 Eurosurgical Intersomatic cage for lumbar fusion by transforaminal access and cage-holder device therefor
FR2861582A1 (en) * 2003-10-29 2005-05-06 Eurosurgical INTERSOMATIC CAGE FOR LUMBAR FUSION FIRST TRANSFORAMINAL AND CAGE HOLDER DEVICE
US7935148B2 (en) 2006-01-09 2011-05-03 Warsaw Orthopedic, Inc. Adjustable insertion device for a vertebral implant
US10758363B2 (en) 2006-02-15 2020-09-01 Ldr Medical Transforaminal intersomatic cage for an intervertebral fusion graft and an instrument for implanting the cage
US9597198B2 (en) 2006-02-15 2017-03-21 Ldr Medical Transforaminal intersomatic cage for an intervertebral fusion graft and an instrument for implanting the cage
US8303601B2 (en) 2006-06-07 2012-11-06 Stryker Spine Collet-activated distraction wedge inserter
US9028553B2 (en) 2009-11-05 2015-05-12 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US9931224B2 (en) 2009-11-05 2018-04-03 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US9358133B2 (en) 2009-11-05 2016-06-07 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US10792166B2 (en) 2009-11-05 2020-10-06 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US11712349B2 (en) 2009-11-05 2023-08-01 DePuy Synthes Products, Inc. Self-pivoting spinal implant and associated instrumentation
US10022245B2 (en) 2012-12-17 2018-07-17 DePuy Synthes Products, Inc. Polyaxial articulating instrument
US10966843B2 (en) 2017-07-18 2021-04-06 DePuy Synthes Products, Inc. Implant inserters and related methods
US11045331B2 (en) 2017-08-14 2021-06-29 DePuy Synthes Products, Inc. Intervertebral implant inserters and related methods
US11690734B2 (en) 2017-08-14 2023-07-04 DePuy Synthes Products, Inc. Intervertebral implant inserters and related methods

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