WO1997032533A1 - Dispositif pour osteosynthese rachidienne - Google Patents
Dispositif pour osteosynthese rachidienne Download PDFInfo
- Publication number
- WO1997032533A1 WO1997032533A1 PCT/FR1996/002074 FR9602074W WO9732533A1 WO 1997032533 A1 WO1997032533 A1 WO 1997032533A1 FR 9602074 W FR9602074 W FR 9602074W WO 9732533 A1 WO9732533 A1 WO 9732533A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rod
- spinal osteosynthesis
- portions
- frustoconical
- diameter
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7026—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a part that is flexible due to its form
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
Definitions
- the invention relates to a device for spinal osteosynthesis.
- more or less rigid rods are used for this purpose, the length of which depends on the height and the number of vertebrae to be fixed, said rods making it possible to connect vertebral anchoring systems, such as hooks , pedicle plates and screws, the latter being implanted in the pedicles of the vertebrae concerned.
- the invention therefore proposes a simple spinal osteosynthesis device, using a rod with variable flexibility associated with vertebral anchoring systems, and the flexibility of which varies according to the place of fixation.
- This variation in flexibility being obtained by a constant variation in the diameter of said rod at least at one of its portions. In this way a flexibility gradient is generated.
- the principle of varying the diameter of the rod is known.
- a segmental rod of different diameters has been described.
- the rod according to the invention has, on the contrary, a constant and linear variation in its diameter, resulting in an increase in the resistance of said rod to rupture, by the elimination of any zones of weakness inherent in a sudden and discreet variation in the diameter, as described in these two documents.
- the variation in diameter is not only continuous but linear, so that the general profile of the rod can be frustoconical, or even be constituted by an assembly of one or two truncated cones, with or without the intermediary of a cylindrical area.
- the rod may have at least one flat, suitable for optimizing the blocking against rotation of the rod, and therefore improve the locking of the rod with the vertebral anchoring elements.
- Figure 1 is a schematic representation seen from above of a first embodiment of the rod according to the invention, of which Figure 2 is a schematic perspective representation.
- Figure 3 is a schematic representation seen from above of another embodiment of the invention.
- Figure 4 is a schematic perspective representation of another embodiment of the invention.
- Figure 5 is a schematic representation of the lumbar spine, provided with two rods according to the first embodiment of the invention.
- FIG. 6 is a representation of the lumbosacral spine using rods in accordance with FIG. 3.
- FIG. 7 is a schematic perspective representation of a variant of the rod of FIG. 1.
- FIG. 8 is a schematic representation seen from above of a variant of the rod of FIG. 4.
- This rod (1) typically made of metal or composite material, in particular by machining, has a symmetry of revolution. Although one piece, it in fact has two parts in the example described, symmetrical (2) and (3), each consisting of a truncated cone, the junction zone (6) of said parts (2) and (3) corresponding at their widest base and as a corollary, at the largest diameter P_.
- the ends (4) and (5) of the rod (1) have a diameter d . less than D. .
- d 3.5 mm
- D 5 mm.
- the variation in diameter from the junction zone (6) towards the ends (4) and (5) is constant, continuous and linear.
- the generatrices of parts (2) and (3) are formed by straight lines.
- FIG. 2 shows a perspective view illustrating these different characteristics.
- Such a rod can be placed for example at the level of the lumbar spine as shown in FIG. 5.
- These rods (1) are fixed at the level of the pedicles of lumbar vertebrae (9) (or dorsal in the in the case of mounting in the thoracic zone) by means of pedicle screws (10) or hooks, in a known manner.
- the rod of FIGS. 1 and 2 also comprises a cylindrical junction zone (11), the diameter of which corresponds to the diameter D of the base (12) and (13) of the truncated cones constituting the parts ( 2) and (3) of the rod (1).
- the rod while having a symmetry of revolution, is either only frustoconical and consists of a single part, or is constituted of two parts comprising a frustoconical part connected to a cylindrical part at its end of larger diameter P_.
- One of the ends (7) corresponding to the base of the truncated cone has a larger diameter D_ than the other end (8) of diameter d.
- Such a rod, the flexibility of which is greater at one end (8) than at the other end (7) is more particularly intended to be placed at the lumbosacral spine, such as shown in figure 6.
- the end (7) with diameter D is always fixed by means of pedicle screws (10) or plates at the sacrum (14), the other end (8) being fixed at the lumbar vertebrae by means pedicle screws or hooks, the variation in flexibility of the rod making it possible to protect the disc adjacent to the last proximal vertebra fixed by the material.
- the rod has over its entire length, a flat (15).
- This flat does not alter the principle of variable flexibility of the rod, and it also makes it possible to optimize the locking of said rod at the level of the vertebral anchoring systems.
- the virtual diameter of the rod also has a constant variation.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (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)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96943190A EP0884979A1 (fr) | 1996-03-05 | 1996-12-24 | Dispositif pour osteosynthese rachidienne |
| AU11992/97A AU1199297A (en) | 1996-03-05 | 1996-12-24 | Spinal osteosynthesis device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9602994A FR2745707B1 (fr) | 1996-03-05 | 1996-03-05 | Dispositif pour osteosynthese rachidienne |
| FR96/02994 | 1996-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997032533A1 true WO1997032533A1 (fr) | 1997-09-12 |
Family
ID=9490028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1996/002074 Ceased WO1997032533A1 (fr) | 1996-03-05 | 1996-12-24 | Dispositif pour osteosynthese rachidienne |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0884979A1 (fr) |
| AU (1) | AU1199297A (fr) |
| FR (1) | FR2745707B1 (fr) |
| WO (1) | WO1997032533A1 (fr) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008039222A1 (fr) * | 2006-09-25 | 2008-04-03 | Stryker Spine | Dispositif d'insertion de tige et tige présentant une extrémité à diamètre réduit |
| EP1613224A4 (fr) * | 2003-04-04 | 2008-07-09 | Stephen Ritland | Dispositif de fixation dynamique et son procede d'utilisation |
| US7604654B2 (en) | 2005-02-22 | 2009-10-20 | Stryker Spine | Apparatus and method for dynamic vertebral stabilization |
| US7641673B2 (en) | 2000-07-25 | 2010-01-05 | Zimmer Spine, S.A.S. | Flexible linking piece for stabilising the spine |
| CH702636A1 (de) * | 2010-02-04 | 2011-08-15 | Spinesave Ag | Elastischer Stab mit variierender Steifigkeit für die dynamische Stabilisierung der Wirbelsäule. |
| WO2012024807A1 (fr) | 2010-08-26 | 2012-03-01 | Spinesave Ag | Jeu d'implants rachidiens destiné à la stabilisation dynamique de la colonne vertébrale |
| US8657856B2 (en) | 2009-08-28 | 2014-02-25 | Pioneer Surgical Technology, Inc. | Size transition spinal rod |
| US8690922B2 (en) | 2002-05-08 | 2014-04-08 | Stephen Ritland | Dynamic fixation device and method of use |
| CN103892897A (zh) * | 2012-12-27 | 2014-07-02 | 藏磊 | 生长期脊柱侧凸内固定矫形器 |
| US8845694B2 (en) | 2005-07-19 | 2014-09-30 | Warsaw Orthopedic, Inc. | Rod extension for extending fusion construct |
| US9017384B2 (en) | 2008-05-13 | 2015-04-28 | Stryker Spine | Composite spinal rod |
| US9445846B2 (en) | 2005-10-31 | 2016-09-20 | Stryker European Holdings I, Llc | System and method for dynamic vertebral stabilization |
| US10695097B2 (en) | 2012-07-05 | 2020-06-30 | Spinesave Ag | Elastic rod having different degrees of stiffness for the surgical treatment of the spine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2246036T3 (es) * | 2002-05-21 | 2006-02-01 | Spinelab Ag | Sistema elastico para la estabilizacion de la columna vertebral. |
| ATE407633T1 (de) * | 2003-04-15 | 2008-09-15 | Synthes Gmbh | Vorrichtung zur knochenfixation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1256739A1 (ru) * | 1984-12-21 | 1986-09-15 | Центральный научно-исследовательский институт травматологии и ортопедии им.Н.Н.Приорова | Устройство дл исправлени искривлени позвоночника при сколиозе |
| FR2702361A1 (fr) * | 1993-02-24 | 1994-09-16 | Soprane Sa | Fixateur pour les ostéosynthèses lombo-sacrées. |
| WO1996016608A1 (fr) * | 1994-11-30 | 1996-06-06 | Sofamor, S.N.C. | Instrument pour la colonne vertebrale, se presentant sous forme de tige |
-
1996
- 1996-03-05 FR FR9602994A patent/FR2745707B1/fr not_active Expired - Fee Related
- 1996-12-24 EP EP96943190A patent/EP0884979A1/fr not_active Withdrawn
- 1996-12-24 WO PCT/FR1996/002074 patent/WO1997032533A1/fr not_active Ceased
- 1996-12-24 AU AU11992/97A patent/AU1199297A/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1256739A1 (ru) * | 1984-12-21 | 1986-09-15 | Центральный научно-исследовательский институт травматологии и ортопедии им.Н.Н.Приорова | Устройство дл исправлени искривлени позвоночника при сколиозе |
| FR2702361A1 (fr) * | 1993-02-24 | 1994-09-16 | Soprane Sa | Fixateur pour les ostéosynthèses lombo-sacrées. |
| WO1996016608A1 (fr) * | 1994-11-30 | 1996-06-06 | Sofamor, S.N.C. | Instrument pour la colonne vertebrale, se presentant sous forme de tige |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE WPI Section PQ Week 8718, 13 May 1993 Derwent World Patents Index; Class P31, AN 87-127699, XP002015798 * |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7641673B2 (en) | 2000-07-25 | 2010-01-05 | Zimmer Spine, S.A.S. | Flexible linking piece for stabilising the spine |
| US9622790B2 (en) | 2001-09-19 | 2017-04-18 | Warsaw Orthopedic, Inc. | Rod extension for extending fusion construct |
| US8932334B2 (en) | 2002-04-05 | 2015-01-13 | Stephen Ritland | Dynamic fixation device and method of use |
| US8690922B2 (en) | 2002-05-08 | 2014-04-08 | Stephen Ritland | Dynamic fixation device and method of use |
| US9918744B2 (en) | 2002-05-08 | 2018-03-20 | Stephen Ritland | Dynamic fixation device and method of use |
| US9232967B2 (en) | 2002-05-08 | 2016-01-12 | Stephen Ritland | Dynamic fixation device and method of use |
| EP1613224A4 (fr) * | 2003-04-04 | 2008-07-09 | Stephen Ritland | Dispositif de fixation dynamique et son procede d'utilisation |
| US8974499B2 (en) | 2005-02-22 | 2015-03-10 | Stryker Spine | Apparatus and method for dynamic vertebral stabilization |
| US9486244B2 (en) | 2005-02-22 | 2016-11-08 | Stryker European Holdings I, Llc | Apparatus and method for dynamic vertebral stabilization |
| US9949762B2 (en) | 2005-02-22 | 2018-04-24 | Stryker European Holdings I, Llc | Apparatus and method for dynamic vertebral stabilization |
| US7604654B2 (en) | 2005-02-22 | 2009-10-20 | Stryker Spine | Apparatus and method for dynamic vertebral stabilization |
| US7625393B2 (en) | 2005-02-22 | 2009-12-01 | Stryker Spine | Apparatus and method for dynamic vertebral stabilization |
| US8845694B2 (en) | 2005-07-19 | 2014-09-30 | Warsaw Orthopedic, Inc. | Rod extension for extending fusion construct |
| US10004539B2 (en) | 2005-10-31 | 2018-06-26 | Stryker European Holdings I, Llc | System and method for dynamic vertebral stabilization |
| US9445846B2 (en) | 2005-10-31 | 2016-09-20 | Stryker European Holdings I, Llc | System and method for dynamic vertebral stabilization |
| EP2452645A1 (fr) * | 2006-09-25 | 2012-05-16 | Stryker Spine | Appareil d'insertion de tige avec extrémité de diamètre réduite |
| US7686809B2 (en) | 2006-09-25 | 2010-03-30 | Stryker Spine | Rod inserter and rod with reduced diameter end |
| WO2008039222A1 (fr) * | 2006-09-25 | 2008-04-03 | Stryker Spine | Dispositif d'insertion de tige et tige présentant une extrémité à diamètre réduit |
| US10194948B2 (en) | 2006-09-25 | 2019-02-05 | Stryker European Holdings I, Llc | Rod inserter and rod with reduced diameter end |
| US11134990B2 (en) | 2006-09-25 | 2021-10-05 | Stryker European Operations Holdings Llc | Rod inserter and rod with reduced diameter end |
| US12185981B2 (en) | 2006-09-25 | 2025-01-07 | Stryker European Operations Holdings Llc | Rod inserter and rod with reduced diameter end |
| US9017384B2 (en) | 2008-05-13 | 2015-04-28 | Stryker Spine | Composite spinal rod |
| US8657856B2 (en) | 2009-08-28 | 2014-02-25 | Pioneer Surgical Technology, Inc. | Size transition spinal rod |
| CH702636A1 (de) * | 2010-02-04 | 2011-08-15 | Spinesave Ag | Elastischer Stab mit variierender Steifigkeit für die dynamische Stabilisierung der Wirbelsäule. |
| US9232964B2 (en) | 2010-08-26 | 2016-01-12 | Spinesave Ag | Spinal implant set for the dynamic stabilization of the spine |
| WO2012024807A1 (fr) | 2010-08-26 | 2012-03-01 | Spinesave Ag | Jeu d'implants rachidiens destiné à la stabilisation dynamique de la colonne vertébrale |
| US10695097B2 (en) | 2012-07-05 | 2020-06-30 | Spinesave Ag | Elastic rod having different degrees of stiffness for the surgical treatment of the spine |
| CN103892897A (zh) * | 2012-12-27 | 2014-07-02 | 藏磊 | 生长期脊柱侧凸内固定矫形器 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0884979A1 (fr) | 1998-12-23 |
| FR2745707A1 (fr) | 1997-09-12 |
| FR2745707B1 (fr) | 1998-04-30 |
| AU1199297A (en) | 1997-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0884979A1 (fr) | Dispositif pour osteosynthese rachidienne | |
| EP1330987B1 (fr) | Implant vertebral inter-épineux | |
| CA2133766C (fr) | Dispositif d'osteosynthese rachidienne | |
| EP0919199B1 (fr) | Dispositif de liaison intervertébrale à débattement axial et angulaire | |
| EP1054638B1 (fr) | Stabilisateur interepineux a fixer a des apophyses epineuses de deux vertebres | |
| EP0536066B1 (fr) | Dispositif d'ostéosynthèse vertébrale | |
| EP1489980B1 (fr) | Systeme d'osteosynthese rachidienne | |
| WO1997025931A1 (fr) | Dispositif d'ancrage d'ostheosynthese vertebrale posterieure | |
| EP1414358A2 (fr) | Ensemble de stabilisation de vertebres | |
| EP1075223A1 (fr) | Systeme d'osteosynthese rachidienne pour une fixation anterieure | |
| FR2717370A1 (fr) | Prothèse intervertébrale de stabilisation. | |
| WO2001001873A1 (fr) | Element de fixation et ancillaire pour la stabilisation des vertebres | |
| FR2781663A1 (fr) | Dispositif d'osteosynthese rachidienne | |
| FR2773463A1 (fr) | Dispositif de liaison intervertebrale | |
| FR2908035A1 (fr) | Implant interepineux | |
| WO2005094704A1 (fr) | Dispositif de liaison intervertebrale a mouvements multidirectionnels controles | |
| FR2716794A1 (fr) | Connecteur pour instrumentation d'ostéosynthèse rachidienne, destiné à une fixation lombaire ou sacrée ou ilio-sacrée. | |
| FR2863860A1 (fr) | Dispositif d'osteosynthese du rachis. | |
| EP0820730B1 (fr) | Plaque d'ostéosynthèse de rachis | |
| FR2728454A1 (fr) | Dispositif de liaison intervertebrale implantable et ancillaire de distraction pour l'implantation d'un tel dispositif | |
| WO1992013496A1 (fr) | Cadre pour rigidification d'un os ou ensemble d'os | |
| WO1996015729A1 (fr) | Dispositif de stabilisation posterieure du rachis au moyen d'une tige | |
| EP0682918B1 (fr) | Dispositif d'ostéosynthèse pour rachis | |
| FR2720261A1 (fr) | Implant pour dispositif d'ostéosynthèse. | |
| WO1999044526A1 (fr) | Organe d'osteosynthese rachidien pour la fixation d'un ligament |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 1996943190 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 97531502 Format of ref document f/p: F |
|
| WWP | Wipo information: published in national office |
Ref document number: 1996943190 Country of ref document: EP |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| NENP | Non-entry into the national phase |
Ref country code: CA |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1996943190 Country of ref document: EP |