WO2007080317A2 - Systeme de plaque et vis pediculaires et ses applications - Google Patents
Systeme de plaque et vis pediculaires et ses applications Download PDFInfo
- Publication number
- WO2007080317A2 WO2007080317A2 PCT/FR2007/000040 FR2007000040W WO2007080317A2 WO 2007080317 A2 WO2007080317 A2 WO 2007080317A2 FR 2007000040 W FR2007000040 W FR 2007000040W WO 2007080317 A2 WO2007080317 A2 WO 2007080317A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- implantable
- holes
- elastic material
- vertebrae
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00862—Material properties elastic or resilient
Definitions
- the present invention relates to a plate and pedicle screw system and its applications.
- the pathologies of the lumbar spine are treated in different ways.
- One of them consists of blocking several vertebrae in order to perform arthrodesis of the joints concerned, generally by fusing them by bone grafting.
- One technique is to place pedicle screws connected to each other by a titanium or stainless steel plate.
- Vertebrae blockage has several drawbacks, of which two examples can be mentioned: the joints adjacent to the blocked levels are much more solicited and the patient's movement capacities are reduced.
- Non-fusion techniques appear. In this case, it is a question of restoring distances and anatomical movements in order to find joints functioning as normally as possible.
- One technique consists of anteriorly placing a prosthesis in place of the diseased disc as described for example in US-A-6,368,350. This recent technique of anterior insertion has the disadvantage of being reserved for a limited number of patients. surgeons trained and used to managing the risks.
- Another technique consists in placing posterior pedicular screws connected by a ligament and a silicone tube as described for example in FR-A-2 777 449.
- This technique has the advantages of the posterior route but on the one hand the technique of pose is complex because the surgeon must use several instruments to put the elements in tension and secondly if the surgeon wishes to achieve a blockage on a joint and a "non fusion" on the adjacent joint, this type of system does not will not allow.
- the object of the invention aims to remedy these drawbacks by proposing a system of pedicular screws interconnected by a lumbar plate, part of which is made of elastic material to allow movement of the vertebrae while maintaining the same surgical technique that the vertebral blockage that is well controlled by all spine surgeons.
- the devices of the invention address the field of posterior lumbar plates and allow to join two lumbar vertebrae posteriorly, and not for example in the field of anterior plates, for example cervical.
- the object of the invention is not to obtain the fusion between two lumbar vertebrae while allowing natural anatomical movements, while the anterior plates are intended to achieve fusion between two cervical vertebrae.
- the anterior plates generally have a width of 14 to 30 mm, a thickness of 1 to 4 mm and a length of 20 to 80 mm, while the plates as those of the present invention generally have a width of 8 to 14 mm a thickness of 6 to 14 mm and a length of 30 to 200 mm.
- the purpose of the anterior cervical plates is fusion, the vertebrae must not move and a possible elastic zone is only used to maintain tension on the graft so that it takes better. The dimensions and the mechanical characteristics of the elastic part will therefore be completely different from those of the devices of the invention.
- the devices of the invention which make it possible to join two lumbar vertebrae posteriorly, are also fundamentally distinguished for example from a vertebral ligament prosthesis. Their function is different since a ligament prosthesis only works in extension and in rotation while a posterior lumbar plate works in flexion, extension, compression and rotation. It follows from this for the man of the art of many structural differences. In particular, the thickness of a ligament prosthesis will of course be rather low because it is not intended to work in flexion and extension as the posterior lumbar plates. In addition, the implantation of a ligament prosthesis in the anterior part does not allow the use of thick plates. The width of the two devices too is very different. Anteriorly, a single "ligament" is placed on the anterior part of the body, whereas two posterior lumbar plates must be placed, which must be installed posteriorly and will therefore be narrower.
- the rate of deformation of the plate will also be very different because anterior ligament deforms little (and only in tension and torsion) while a posterior lumbar plate flexes a lot during natural movements. It follows that the volume and composition of flexible materials must be very different.
- an implantable lumbar plate for partial immobilization of posterior lumbar adjacent vertebrae comprising two holes spaced to allow the installation of screws in adjacent vertebrae, said plate having between the two holes an extensible zone and compressible made of elastic material.
- the implantable plate preferably has an elongated shape, for example oval, in particular oblong.
- the holes are preferably made in metal inserts provided in the plate. These can conventionally be secured to the plate by using profiled edges. Inserts with profiled edges are illustrated hereinafter in the figures.
- the zone made of elastic material represents the major part of the plate and the holes are made in metal inserts provided in a plate made of elastic material.
- the holes are made in metal plates interconnected by a strip made of elastic material.
- the implantable plate is mainly made of material metal, and one of the holes is made in a metal insert attached to the implantable plate through a ring made of elastic material.
- a metallic material represents most of the part.
- hole designates in particular a simple hole allowing the passage of a screw but advantageously a countersunk hole to fit the shape of the head of the screw and allowing its passage.
- the holes may be circular, they are preferably oblong to accommodate various spacings.
- the implantable plates according to the invention comprise three substantially aligned holes for attachment to three adjacent vertebrae.
- the plates above comprise a rigid plate installed between two adjacent holes.
- the inserts, plates or metal plates are made of implantable materials preferably titanium or stainless steel or their alloys.
- the extensible and compressible zone of elastic material is preferably made of polyurethane material, in particular polyurethane material such as the product marketed by Poly Medica Industries Inc. (Massachusetts) under the name CHRONOFLEX®.
- the zone made of elastic material represents the major part of the implantable plate, that the holes are made in metal inserts provided in a plate made of polyurethane elastic material, and that the plate has an oblong shape,
- the plate may have a thickness of 3 to 14 mm, preferably 4 to 13 mm, especially 5 to 12 mm, especially 6 to 11 mm.
- the plate may have a width of 5 to 18 mm, preferably 6 to 16 mm, especially 7 to 15 mm, especially 8 to 14 mm.
- the plate may have a length of 20 to 70 mm, preferably 30 to 60 mm, in particular 35 to 55 mm, very particularly 40 to 50 mm for a plate implanted on two adjacent vertebrae, -
- the plate may have a length of 50 to 100 mm, preferably 60 to 90 mm, especially 65 to 85 mm, especially 70 to 80 mm for a plate implanted on three adjacent vertebrae.
- the length of the plate depends on the number of vertebrae involved and can vary from 30 to 200 mm.
- the elastic material is capable of allowing the plate to reproduce the movements of the joint. For example, if a man bends forward, the disc between L4 and L5 should crash about 2mm forward; if it bends towards its right side, this disc will have to crash in its right part of approximately 1, 5 mm.
- the elastic piece will therefore have the thickness and the width necessary to allow the maximum amplitude preference required by the anatomical movements.
- the elastic piece may also have the thickness and width necessary to allow at least 50%, preferably at least 70%, especially at least 80%, especially at least 90% of the maximum amplitudes required by the anatomical movements.
- an implantable plate of the invention is made using conventional methods and in particular by overmolding elastic material on the base or bases (inserts, plates or platelets) metal.
- a plate having a greater width and thickness is advantageously produced.
- a plate having a smaller width and / or thickness at least partly between the two holes is advantageously produced.
- An implantable plate of the invention can be sterilized just before it is placed on vertebrae or preferably be in sterile form packaged. Screws are preferred for its installation.
- the present application also relates to a set or kit comprising an implantable plate above and the adapted pedicle screws.
- the pedicular screws have a length usually of 3.5 to 5 cm for a diameter of 0.5 to 0.7 cm and are screws intended for fixation in the pedicles situated in the posterior part of the vertebrae.
- the implantable plates according to the invention object of the present invention have very interesting properties and qualities. They allow in particular to stabilize the lumbar spine while allowing anatomical movements.
- the plate may have a rigid portion for locking a joint and a flexible portion for the "non-fusion" of the adjacent joint.
- the present application also relates to a method of surgical treatment of degenerative disc diseases in which is fixed to at least two adjacent vertebrae at least one implantable plate above with screws, posteriorly.
- Figure 1 shows a perspective view of an implantable plate and its screws
- Figure 2 shows a top view of an implantable plate
- Figure 3 shows a sectional view (on a larger scale) of Figure 2 along AA '
- Figure 4 shows a sectional view (on a larger scale) of Figure 2 according to AA '(variant)
- - Figure 5 shows a top view of an implantable plate
- Figure 6 shows a top view of an implantable plate
- Figure 7 shows a sectional view (on a larger scale) of Figure 6 according to BB 1 .
- a plate according to the invention designated by 1 as a whole, oblong, essentially made of polyurethane elastic plastic material since only two inserts 11 are made of metal.
- the dimensions are as follows: thickness 8 mm, width 11 mm, length 50 mm.
- Two screws 2 allow the attachment of this plate 1 in two adjacent vertebrae. The heads of the screws 2 are inserted into two holes provided in the inserts 11.
- FIG. 2 it is observed that two identical inserts 11 are provided in the plate 12. These inserts 11 comprise in their center each an oblong milling 13 as it is will see better in Figure 3.
- FIG 3 one can observe the concave shape of the edges of the insert 11 for its retention within the plate 12 having convex beads.
- the hole 13 made in the insert 11 comprises a countersunk portion capable of cooperating with a screw head 2 to prevent it from exceeding or exceeding the top of the plate 1 excessively.
- the holes 13 are elongated to allow adaptation to different spacings of vertebrae.
- Figure 4 there can be seen an alternative embodiment of the edges of the insert, which have a sectional shape generally corrugation.
- Figure 5 shows an insert for both the locking of a joint between two vertebrae and the "non-fusion" of the joint between two adjacent vertebrae.
- one of the inserts 11 is an insert similar to those above and the second insert 14 is extended by a metal lug 15 provided with a hole 16.
- the spacing between the inserts 11 and 14 is identical to that between the inserts 14 and 16.
- the assembly consisting of the inserts 14, 16 and the lug 15 is made in one piece.
- the plate 17 is essentially made of metal.
- One of the inserts 18 is separated from the plate 17 by an annular sheath 19 made of polyurethane.
- the hole 13 of this insert 18 is circular. A single elongated hole is sufficient to allow extensive adjustments.
- the cladding 18 of the insert can be observed by the polyurethane ring 19 embedded in the plate 17.
- An alternative embodiment of the edges of the insert 18, which have a cross-sectional shape, can also be observed. general bowl and tab-light cooperation of the outer edges of the polyurethane ring 19.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002636865A CA2636865A1 (fr) | 2006-01-13 | 2007-01-10 | Systeme de plaque et vis pediculaires et ses applications |
| JP2008549905A JP2009523045A (ja) | 2006-01-13 | 2007-01-10 | プレートおよび椎弓根スクリューを備えるシステムならびにその適用 |
| MX2008009012A MX2008009012A (es) | 2006-01-13 | 2007-01-10 | Sistema que comprende una placa y tornillos pediculares y sus aplicaciones. |
| BRPI0706495-0A BRPI0706495A2 (pt) | 2006-01-13 | 2007-01-10 | sistema de placa e parafusos pediculares e suas aplicações |
| EP07717871A EP1971283A2 (fr) | 2006-01-13 | 2007-01-10 | Systeme de plaque et vis pediculaires et ses applications |
| US12/160,790 US20100168793A1 (en) | 2006-01-13 | 2007-01-10 | System comprising a plate and pedicle screws, and its applications |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0600332A FR2896145B1 (fr) | 2006-01-13 | 2006-01-13 | Systeme de plaque et vis pediculaires et ses applications |
| FR0600332 | 2006-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007080317A2 true WO2007080317A2 (fr) | 2007-07-19 |
| WO2007080317A3 WO2007080317A3 (fr) | 2007-11-08 |
Family
ID=37133956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2007/000040 Ceased WO2007080317A2 (fr) | 2006-01-13 | 2007-01-10 | Systeme de plaque et vis pediculaires et ses applications |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20100168793A1 (fr) |
| EP (1) | EP1971283A2 (fr) |
| JP (1) | JP2009523045A (fr) |
| KR (1) | KR20080092398A (fr) |
| CN (1) | CN101370438A (fr) |
| BR (1) | BRPI0706495A2 (fr) |
| CA (1) | CA2636865A1 (fr) |
| FR (1) | FR2896145B1 (fr) |
| MX (1) | MX2008009012A (fr) |
| WO (1) | WO2007080317A2 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004046163A1 (de) | 2004-08-12 | 2006-02-23 | Columbus Trading-Partners Pos und Brendel GbR (vertretungsberechtigte Gesellschafter Karin Brendel, 95503 Hummeltal und Bohumila Pos, 95445 Bayreuth) | Kindersitz für Kraftfahrzeuge |
| EP1820336A4 (fr) | 2004-12-06 | 2010-04-28 | Thomson Licensing | Flux multiples de sous-titrage ferme et acces client dans des reseaux numeriques |
| US8048128B2 (en) | 2007-06-05 | 2011-11-01 | Spartek Medical, Inc. | Revision system and method for a dynamic stabilization and motion preservation spinal implantation system and method |
| CN105559867B (zh) * | 2016-02-19 | 2018-08-28 | 上海市东方医院 | 脊柱解剖内固定装置及其制作方法 |
| JP7252949B2 (ja) * | 2017-10-06 | 2023-04-05 | マリン、ブラッド | 脊椎インプラント |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH632657A5 (en) * | 1978-10-26 | 1982-10-29 | Sulzer Ag | Implant for the fixation of bones and/or bone fragments |
| US6206882B1 (en) * | 1999-03-30 | 2001-03-27 | Surgical Dynamics Inc. | Plating system for the spine |
| JP2003523784A (ja) * | 1999-04-05 | 2003-08-12 | サージカル ダイナミックス インコーポレイテッド | 人工脊椎靭帯 |
| US6461359B1 (en) * | 1999-11-10 | 2002-10-08 | Clifford Tribus | Spine stabilization device |
| US6605090B1 (en) * | 2000-10-25 | 2003-08-12 | Sdgi Holdings, Inc. | Non-metallic implant devices and intra-operative methods for assembly and fixation |
| US20040243128A1 (en) * | 2001-05-17 | 2004-12-02 | Howland Robert S. | Selective axis posterior lumbar spinal plating fixation apparatus and methods for use |
| US6755833B1 (en) * | 2001-12-14 | 2004-06-29 | Kamaljit S. Paul | Bone support assembly |
| US20030187509A1 (en) * | 2002-04-01 | 2003-10-02 | Lemole G. Michael | Modulus plating system and method |
| DE20321551U1 (de) * | 2003-08-26 | 2007-12-27 | Synthes Gmbh | Knochenplatte |
| US20050085814A1 (en) * | 2003-10-21 | 2005-04-21 | Sherman Michael C. | Dynamizable orthopedic implants and their use in treating bone defects |
| US7297146B2 (en) * | 2004-01-30 | 2007-11-20 | Warsaw Orthopedic, Inc. | Orthopedic distraction implants and techniques |
| AU2005249386A1 (en) * | 2004-05-27 | 2005-12-15 | Depuy Spine, Inc. | Tri-joint implant |
-
2006
- 2006-01-13 FR FR0600332A patent/FR2896145B1/fr not_active Expired - Fee Related
-
2007
- 2007-01-10 US US12/160,790 patent/US20100168793A1/en not_active Abandoned
- 2007-01-10 MX MX2008009012A patent/MX2008009012A/es not_active Application Discontinuation
- 2007-01-10 WO PCT/FR2007/000040 patent/WO2007080317A2/fr not_active Ceased
- 2007-01-10 KR KR1020087018925A patent/KR20080092398A/ko not_active Withdrawn
- 2007-01-10 BR BRPI0706495-0A patent/BRPI0706495A2/pt not_active IP Right Cessation
- 2007-01-10 CN CNA2007800030749A patent/CN101370438A/zh active Pending
- 2007-01-10 JP JP2008549905A patent/JP2009523045A/ja active Pending
- 2007-01-10 CA CA002636865A patent/CA2636865A1/fr not_active Abandoned
- 2007-01-10 EP EP07717871A patent/EP1971283A2/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0706495A2 (pt) | 2011-03-29 |
| CA2636865A1 (fr) | 2007-07-19 |
| EP1971283A2 (fr) | 2008-09-24 |
| CN101370438A (zh) | 2009-02-18 |
| FR2896145B1 (fr) | 2009-02-06 |
| KR20080092398A (ko) | 2008-10-15 |
| FR2896145A1 (fr) | 2007-07-20 |
| MX2008009012A (es) | 2008-09-10 |
| US20100168793A1 (en) | 2010-07-01 |
| JP2009523045A (ja) | 2009-06-18 |
| WO2007080317A3 (fr) | 2007-11-08 |
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