WO2004012634A2 - Implant inter-somatique - Google Patents
Implant inter-somatique Download PDFInfo
- Publication number
- WO2004012634A2 WO2004012634A2 PCT/FR2003/002325 FR0302325W WO2004012634A2 WO 2004012634 A2 WO2004012634 A2 WO 2004012634A2 FR 0302325 W FR0302325 W FR 0302325W WO 2004012634 A2 WO2004012634 A2 WO 2004012634A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- branches
- implant
- inter
- somatic
- screw
- Prior art date
Links
- 239000007943 implant Substances 0.000 title claims abstract description 73
- 210000000988 bone and bone Anatomy 0.000 claims description 9
- 239000000316 bone substitute Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000006355 external stress Effects 0.000 claims 1
- 230000002250 progressing effect Effects 0.000 claims 1
- 230000004927 fusion Effects 0.000 description 10
- 230000007170 pathology Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 210000003484 anatomy Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 206010023509 Kyphosis Diseases 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 208000007103 Spondylolisthesis Diseases 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 208000029084 Hyperlordosis Diseases 0.000 description 1
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 208000007623 Lordosis Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000642 iatrogenic effect Effects 0.000 description 1
- 201000006747 infectious mononucleosis Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 206010039722 scoliosis Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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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
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- 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
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- 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
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- 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
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/3011—Cross-sections or two-dimensional shapes
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- 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
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30485—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism plastically deformable
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- 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
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- 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
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- 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
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
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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
- 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
- A61F2002/30594—Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
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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
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- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
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- 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
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/448—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
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- A—HUMAN NECESSITIES
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- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
- A61F2250/0006—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting angular orientation
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- A—HUMAN NECESSITIES
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- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0084—Means for distinguishing between left-sided and right-sided devices; Sets comprising both left-sided and right-sided prosthetic parts
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- A—HUMAN NECESSITIES
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- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
Definitions
- the invention relates to an inter-somatic implant, more particularly intended to be inserted between the vertebral bodies of two consecutive vertebrae, in particular at the cervical level or at the lumbar level, with a view to achieving the fusion of the vertebral bodies at this level.
- an inter-somatic cage which, traditionally, constitutes a wedge inserted between the screw plates with respect to the two vertebral bodies concerned, defining a volume inside which is placed one or more bone grafts, in particular spongy, so as to produce an inter-somatic vertebral graft.
- the walls in particular upper and lower of the cage in question have through lumens, to allow the bone graft to take.
- a flexible inter-somatic implant capable of deforming elastically under the pressure force generated by the vertebral bodies, in order to favor the contact of the graft with the overlying and underlying vertebral bodies.
- the object of the present invention aims to overcome these various drawbacks. To this end, it proposes an inter-somatic implant, allowing both an anatomical adaptation of the implant to the vertebral bodies at the level of which it is intended to be implanted, without requiring any associated posterior osteosynthesis, and other part, to ensure the timing function, in a differential orientation.
- This inter-somatic implant intended to be inserted between two consecutive vertebral bodies, and to receive a bone graft or a bone substitute in the volume which it defines, consists of a cage, one of the side walls of which is open. , thus defining an upper branch and a lower branch, respectively intended to come into contact with the lower plate of the upper vertebral body, and the upper plate of the lower vertebral body.
- This implant is characterized in that by default, the two branches form between them a reduced convergent angle with respect to their junction zones, and in that each of the two upper and lower branches is provided with an internal thread or an internal chute. , oriented along the main dimension of the branches, and intended to cooperate with a screw, to result in the spacing of the branches, at a desired angle.
- the invention provides a rigid inter-somatic cage, with dynamic effect, said effect being selected by the practitioner during the surgical intervention for placing the implant, by actuating a screw whose degree screwing induces a greater or lesser divergence of the upper and lower branches, constituting the cage.
- inter-somatic implant according to the invention, to result in a setting in kyphosis or in lordosis, depending on the pathology diagnosed, said cage being kyphogenic by default, and likely to become lordosing progressively, typically between - 5 ° to + 8 ° relative to the mean parallel direction defined by the two vertebral plates concerned.
- the thread formed at the level of the upper and lower branches is capable of being destroyed, or simply deformed by means of an appropriate tool, after positioning the screw according to the desired degree of screwing. , itself dependent on the desired orientation of the branches
- the upper and lower branches have a curved profile, in the main direction of the branches on the one hand, and in the direction perpendicular to the latter on the other hand.
- top of the dome thus produced is substantially located at the junction of the posterior third and the anterior two thirds, measured with respect to the largest dimension of said branches, for the purpose of greater anatomical adaptation.
- the implant has a reduced median surface, making it possible to obtain a predetermined and chosen contact surface, with a second symmetrical implant intended to be inserted also at the level of the space between vertebral.
- a left implant and a right implant are thus defined, the two implants being symmetrical to each other with respect to their lateral surface intended to come into contact with one another during the positioning of said implants.
- Figure 1 is a schematic representation illustrating the inter-somatic implant according to the present invention, placed between two vertebral bodies of a spine.
- FIG. 2 is a schematic perspective representation of the interbody implant according to the invention.
- Figure 3 is a schematic representation of the rear face of the inter-somatic implant according to the invention.
- Figure 4 is a schematic front view of the inter-somatic implant according to the invention.
- Figure 5 is a partial view of Figure 2, showing in particular the lower branch of the inter-somatic implant.
- Figure 6 is a schematic side representation of the inter-somatic implant according to the invention.
- Figure 7 is a schematic representation illustrating the placement of implants according to the invention.
- the inter-somatic implant according to the invention has been particularly shown in relation to Figure 2. It is intended to be inserted between the vertebral plates (15, 16) of two consecutive vertebrae (see Figure 1).
- this inter-somatic implant consists of a rigid cage, defined by an upper branch (2), a lower branch (3), secured at one of their ends by a junction zone (4).
- the inter-somatic implant according to the invention has a closed slot at the junction zone (4).
- the orientation of the slot from the junction zone (4) is convergent.
- the slot has a narrower width at the free end of the slot (11) than at the junction zone (4).
- the inter-somatic implant produces a kyphogenic effect by default when it is put in place.
- the cage thus produced defines an internal volume, into which is intended to be inserted one or more spongy bone grafts or a bone substitute, intended to allow effective fusion between the two vertebral bodies between which said implant is inserted.
- the expansion of the cancellous bone takes place at the level of the entire periphery of the slot, except at the level of the through opening (5) defined at the level of the junction zone (4), where this opening is filled, at least in part by the screw (12) described below in more detail.
- the two branches respectively (2) and (3) have at their respective internal face, a partial thread (8) extending substantially over part of their length, and interrupting a slightly below their free end by forming a chute (14) therefore free of any thread, and only serving as a guide for a screw (12) described in more detail below.
- This thus defined thread is intended to cooperate with a screw (12), of corresponding screw pitch.
- This screw (12) is inserted at the level of the opening (5) of the junction zone (4), after the inter-somatic implant has been placed at the desired inter-vertebral space. This screw therefore comes to bite into the thread (6) of the junction zone (4).
- the screw head is provided either with a slot, or with a cross, or else with a hexagonal volume (13), in order to be able to cooperate with a screwdriver or a hexagon key.
- this screw when this screw is screwed, also acting as a plug, it progresses on the partial thread (8), and is further guided by the chute (14), said screw (12) then having a terminal portion ( 15) free of any thread, in order to cooperate freely with the chute (14). As it progresses, it induces the progressive separation of the branches (2) and (3) from one another. In this way, the screwing of the screw at the level of this thread gradually transfers the kyphogenic action of the implant into lordosing action, typically in a range between -5 ° to + 8 ° relative to the average parallel defined by l orientation of the two plates at which the implant is inserted.
- inter-somatic implant of the invention we can therefore see the whole point of the inter-somatic implant of the invention, insofar as depending on the pathology encountered, the surgeon is able to use a standard inter-somatic implant, which he adjusts depending on the desired action of said implant by simple more or less pronounced screwing of the screw within the thread (8).
- the thread (8) located upstream of the screw relative to the direction of screwing is destroyed, for example at using a sharp tool
- the screw can no longer move back. At the same time, it can no longer advance, given the pressure exerted by the two arms, respectively upper and lower, on the screw, and by its default kyphosic configuration.
- the area (5) of the rear face of the cage is relatively small with regard to this rear face.
- the invention in addition to the possible dynamic action of the implant, the invention also aims to optimize its anatomical profile.
- the external faces of the upper and lower branches respectively are curved, in order to allow a better adaptation to the concave profile of the plates of the vertebral bodies at the level of which they are intended to exert pressure. More specifically, they have a double bending, that is to say both according to their main dimension, but also in a direction perpendicular thereto, as can be observed in relation to FIGS. 2 to 4 .
- This bulging is slightly asymmetrical, and is more pronounced in the internal area of the implant.
- the height of the implant in the internal zone is slightly greater than that in the external zone.
- the top of the bulge is advantageously located at the junction of the posterior third and the front two thirds, respectively of the upper and lower faces of the upper and lower branches.
- the convexity of the lower branch is slightly lower than that of the upper branch.
- the spacing of the branches (2, 3) resulting from the introduction of the screw (12) within the cage induces a support of said branches against the respective vertebral plates substantially at the level of their entire surface, respectively lower and superior, and not limited to their only end, thereby favoring the desired fusion phenomenon.
- this type of implant is called upon to operate in pairs, as shown in FIG. 7, that is to say an implant cooperating with each of the cavities of the plateau of the vertebral body, the one of the lateral faces has a reduced surface in the middle, making it possible to obtain a predetermined and chosen contact surface, with a second symmetrical implant intended to also be inserted at the level of the inter-vertebral space.
- a left implant and a right implant are thus defined, the two implants being symmetrical to each other with respect to their lateral surface intended to come into contact with one another during the positioning of said implants.
- intervertebral intervertebral implant combining both an anatomical and a dynamic function, simplifying the work of the practitioner, while operating from standard elements. More specifically, the particular shape of the implant confers on the invention, more particularly adapted to the anatomy of the vertebral plates, in order to increase the contact surface with these, to have a better distribution of the stresses, and therefore, lead to a better fusion.
- the implant becomes self-supporting, and therefore does not require posterior stabilization osteosynthesis, which was not the case with implants of the prior art.
- the dynamic nature of the implant gives the invention pennet in addition to better adaptation of it to the patient's pathology, also to reduce the risk of possible deformations such as kyphosis, hyperlordosis, scoliosis, spondylolisthesis.
- the implant of the invention provides a wedging function, according to a differentiated orientation, leading to intrinsic stability.
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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
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003267531A AU2003267531A1 (en) | 2002-08-01 | 2003-07-23 | Intersomatic implant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0209806A FR2843017B1 (fr) | 2002-08-01 | 2002-08-01 | Implant inter-somatique |
FR02/09806 | 2002-08-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004012634A2 true WO2004012634A2 (fr) | 2004-02-12 |
WO2004012634A3 WO2004012634A3 (fr) | 2004-04-29 |
Family
ID=30129612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/002325 WO2004012634A2 (fr) | 2002-08-01 | 2003-07-23 | Implant inter-somatique |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003267531A1 (fr) |
FR (1) | FR2843017B1 (fr) |
WO (1) | WO2004012634A2 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012028920A3 (fr) * | 2010-08-26 | 2012-05-24 | Giancarlo Guizzardi | Support intervertébral |
US8968365B2 (en) | 2007-09-14 | 2015-03-03 | DePuy Synthes Products, LLC | Interspinous spacer |
US9788971B1 (en) | 2013-05-22 | 2017-10-17 | Nuvasive, Inc. | Expandable fusion implant and related methods |
US9801734B1 (en) | 2013-08-09 | 2017-10-31 | Nuvasive, Inc. | Lordotic expandable interbody implant |
US10195053B2 (en) | 2009-09-18 | 2019-02-05 | Spinal Surgical Strategies, Llc | Bone graft delivery system and method for using same |
US10245159B1 (en) | 2009-09-18 | 2019-04-02 | Spinal Surgical Strategies, Llc | Bone graft delivery system and method for using same |
US10973656B2 (en) | 2009-09-18 | 2021-04-13 | Spinal Surgical Strategies, Inc. | Bone graft delivery system and method for using same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2866228B1 (fr) * | 2004-02-17 | 2006-09-29 | Kiscomedica | Cage cervicale reglable par voie anterieure |
ES2292071T3 (es) * | 2005-09-06 | 2008-03-01 | ORTHOPAEDIC & SPINE DEVELOPMENT | Protesis def0rmable de separacion de cuerpos vertebrales. |
WO2023218263A1 (fr) * | 2022-04-14 | 2023-11-16 | Neo Medical Sa | Implant intervertébral extensible par élément de vis conique et système |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416605C1 (de) * | 1994-05-11 | 1995-06-08 | Aesculap Ag | Zwischenwirbel-Implantat |
US6129763A (en) * | 1996-09-13 | 2000-10-10 | Chauvin; Jean-Luc | Expandable osteosynthesis cage |
FR2803741A1 (fr) * | 2000-01-13 | 2001-07-20 | Jean Claude Bouvet | Cage intersomatique |
FR2815845A1 (fr) * | 2000-10-27 | 2002-05-03 | Comptoir Hospitalier Orthopedi | Cage intersomatique expansive |
-
2002
- 2002-08-01 FR FR0209806A patent/FR2843017B1/fr not_active Expired - Fee Related
-
2003
- 2003-07-23 AU AU2003267531A patent/AU2003267531A1/en not_active Abandoned
- 2003-07-23 WO PCT/FR2003/002325 patent/WO2004012634A2/fr not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4416605C1 (de) * | 1994-05-11 | 1995-06-08 | Aesculap Ag | Zwischenwirbel-Implantat |
US6129763A (en) * | 1996-09-13 | 2000-10-10 | Chauvin; Jean-Luc | Expandable osteosynthesis cage |
FR2803741A1 (fr) * | 2000-01-13 | 2001-07-20 | Jean Claude Bouvet | Cage intersomatique |
FR2815845A1 (fr) * | 2000-10-27 | 2002-05-03 | Comptoir Hospitalier Orthopedi | Cage intersomatique expansive |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8968365B2 (en) | 2007-09-14 | 2015-03-03 | DePuy Synthes Products, LLC | Interspinous spacer |
US10973656B2 (en) | 2009-09-18 | 2021-04-13 | Spinal Surgical Strategies, Inc. | Bone graft delivery system and method for using same |
US12053393B2 (en) | 2009-09-18 | 2024-08-06 | Spinal Surgical Strategies, Inc. | Bone graft delivery system and method for use |
US11660208B2 (en) | 2009-09-18 | 2023-05-30 | Spinal Surgical Strategies, Inc. | Bone graft delivery system and method for using same |
US10195053B2 (en) | 2009-09-18 | 2019-02-05 | Spinal Surgical Strategies, Llc | Bone graft delivery system and method for using same |
US10245159B1 (en) | 2009-09-18 | 2019-04-02 | Spinal Surgical Strategies, Llc | Bone graft delivery system and method for using same |
US9820863B2 (en) | 2010-08-26 | 2017-11-21 | Giancarlo Guizzardi | Intervertebral support |
WO2012028920A3 (fr) * | 2010-08-26 | 2012-05-24 | Giancarlo Guizzardi | Support intervertébral |
US10219915B1 (en) | 2013-05-22 | 2019-03-05 | Nuvasive, Inc. | Expandable fusion implant and related methods |
US9788971B1 (en) | 2013-05-22 | 2017-10-17 | Nuvasive, Inc. | Expandable fusion implant and related methods |
US10492924B2 (en) | 2013-08-09 | 2019-12-03 | Nuvasive, Inc. | Lordotic expandable interbody implant |
US9801734B1 (en) | 2013-08-09 | 2017-10-31 | Nuvasive, Inc. | Lordotic expandable interbody implant |
US11696836B2 (en) | 2013-08-09 | 2023-07-11 | Nuvasive, Inc. | Lordotic expandable interbody implant |
US12213893B2 (en) | 2013-08-09 | 2025-02-04 | Nuvasive, Inc. | Lordotic expandable interbody implant and method of using same |
Also Published As
Publication number | Publication date |
---|---|
FR2843017B1 (fr) | 2004-09-10 |
WO2004012634A3 (fr) | 2004-04-29 |
AU2003267531A1 (en) | 2004-02-23 |
FR2843017A1 (fr) | 2004-02-06 |
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