WO2001001894A1 - Cage intersomatique d'immobilisation du rachis - Google Patents
Cage intersomatique d'immobilisation du rachis Download PDFInfo
- Publication number
- WO2001001894A1 WO2001001894A1 PCT/FR2000/001892 FR0001892W WO0101894A1 WO 2001001894 A1 WO2001001894 A1 WO 2001001894A1 FR 0001892 W FR0001892 W FR 0001892W WO 0101894 A1 WO0101894 A1 WO 0101894A1
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- WIPO (PCT)
- Prior art keywords
- anchoring means
- cage
- intersomatic cage
- cutting edge
- anchoring
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
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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
- 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
- A61F2/447—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 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
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- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
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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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- 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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- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30518—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
- A61F2002/30523—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts by means of meshing gear teeth
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- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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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
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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
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Definitions
- the present invention relates to the field of spine orthopedics, and more particularly to that of interbody cages.
- Such prostheses are intended to immobilize the pathological spinal segments and cause bone consolidation by the fusion of the two segments.
- These cages are generally made of titanium, carbon or biocompatible composite material and receive bone grafts.
- This cage includes a central hollow space intended to be filled with bone fragments. It has, in cross section, two wide faces, convex and each provided with a central opening, two narrow faces, each provided with a central opening, said narrow faces carrying an oblique toothing distributed on either side of the central opening of narrow faces. It also has a closed and convex front end and a rear end having in its center a polygonal housing for receiving an operating member.
- a setting key provided with a polygonal end piece and a threaded rod cooperates with the cage of the invention to introduce it by impaction between the vertebrae and immobilize it by rotation after impaction.
- FR2761879 describes an implant which comprises, at its two diametrically opposite sides intended to come into contact with the cancellous bone of the vertebrae after implantation, a plurality of separate openings and angularly offset the relative to one another not corresponding substantially to half the length of an opening, so that one of these openings is located opposite the part of the wall of one implant which separates two longitudinally adjacent openings.
- Another patent application FR2717068 describes an interbody cage to be inserted anteriorly between two vertebrae comprising two substantially parallel branches for contact with the vertebral bodies, a bridge connecting posterior ends of the branches and a part for angularly separating the two branches after insertion of the cage between the two vertebrae.
- the cage allows preoperative adjustment of the lordosis angle between the two vertebrae.
- a cage holder is removably linked to the cage to insert the cage between the two vertebrae. After removal of the cage holder, a screwdriver turns a screw having a rear end secured to the spacer and screwed into one of the branches to separate the two cage branches.
- the object of the present invention is to provide an improved interbody cage allowing implantation by the cervical, thoracic or lumbar route, by anterior or posterior surgical procedure, guaranteeing an effective fixation of the cage before the bone fusion and once the bone fusion is operated, and allowing the cage to be removed after bone fusion.
- the purpose of the cage according to the invention is to allow the intervertebral space to be kept constant in order to prevent the distraction of the vertebral bodies.
- the invention relates in its most general sense to an intersomatic cage for immobilizing the spine comprising a central hollow space intended to be filled with bone fragments, characterized in that it comprises anchoring means opening out on the lateral faces connecting with the adjacent vertebrae, driven by at least one drive means opening into a front face, said anchoring means each comprising at least one main cutting edge.
- An anchor is, by definition, made up of a blockage with no degree of freedom.
- the interbody cage thus anchored by the anchoring means blocks the vertebrae at the same time in compression, extension and rotation, in order to form a perfectly united whole.
- the drive means has a rotational drive head and is movable in rotation in both directions, in order to allow the reversibility of the anchoring means.
- the anchoring means consist of self-tapping screws.
- said anchoring means have a general S shape and the center of gravity of the S shape coincides with the axis of the drive means.
- each anchoring means comprises at least one radial cutting edge substantially perpendicular to the axis of the driving means, in order to allow good penetration of the anchoring means into the bone mass during the positioning of the cage. and possibly during its removal.
- each anchoring means also comprises at least one cutting edge in return substantially parallel to the main cutting edge in order to allow good penetration of the anchoring means into the bone mass during the ablation of the cage.
- each anchoring means comprises a lumen, in order to allow bone regrowth between the arms of the anchoring means. The cooperation thus obtained between the anchoring means and the bone regrowth guarantees perfect maintenance of the vertebrae both in compression, in extension and in rotation.
- the edges of these openings are preferably at least partially cutting, in order to allow the production of a slot for the release of the anchoring means and the ablation of the interbody cage.
- the cage according to the invention comprises means for locking / unlocking in force the anchoring means (3) in their anchored position.
- said drive means or means comprise a hole in their centers, the walls of which are threaded, in order to allow positioning one or more additional elements, such as a fixing screw, in the axis of the means or 'training.
- FIG. 1 represents a schematic perspective view of an interbody cage according to the invention
- Figures 2, 3 and 4 respectively show a schematic perspective view and schematic sectional views of an interbody cage corresponding to a first embodiment of the anchoring means of the interbody cage according to the invention
- Figures 5 and 6 respectively illustrate a perspective view of two pairs of S-anchoring means according to a second embodiment of the anchoring means of the interbody cage according to the invention
- FIG. 1 represents a schematic perspective view of an interbody cage according to the invention
- Figures 2, 3 and 4 respectively show a schematic perspective view and schematic sectional views of an interbody cage corresponding to a first embodiment of the anchoring means of the interbody cage according to the invention
- Figures 5 and 6 respectively illustrate a perspective view of two pairs of S-anchoring means according to a second embodiment of the anchoring means of the interbody cage according to the invention
- FIG. 1 represents a schematic perspective view of an interbody cage according to the invention
- Figures 2, 3 and 4 respectively show a schematic perspective view and schematic section
- FIG. 7 illustrates a perspective view of an intersomatic cage according to the invention to a pair of anchoring means
- Figures 8 and 9 respectively illustrate a front view of the interbody cage of Figure 7, in the retracted position and in the anchoring position
- Figure 10 illustrates a side view of an interbody cage according to the invention to a pair of anchoring means.
- FIG. 11 illustrates a perspective view of an intersomatic cage according to the invention with a double pair of anchoring means
- FIGS. 12 and 13 respectively illustrate a front view of the intersomatic cage of FIG. 11, in the anchoring position and in the anchored position.
- the intersomatic cage (1) has a generally parallelepiped shape and delimits a hollow interior space (4) opening by openings provided on these different faces and in particular on these lateral (5, 5 ′) and frontal ( 6).
- the interior space (4) is intended to be filled with bone fragments taken from the patient. These bone fragments are intended to initiate a fusion of the vertebrae between which the interbody cage is placed.
- the front face (6) has a light allowing access to the head (7) for rotating the drive means (2).
- the anchoring means each have two extreme positions: a retracted position in which they are positioned inside the cage and an anchored position in which they have a maximum clearance outside the cage. Between these two extreme positions, the anchoring means have a plurality of intermediate anchoring positions.
- the drive means (2) consists of a drive rod provided with a thread and the means anchor (3) are formed by two self-tapping screws (8, 9) opening respectively on the upper side face (5) and the lower side face (5 ').
- the drive rod has a hexagon head for driving with a tool, and a grooved body which cooperates with the thread of the self-tapping screws (8, 9).
- the main cutting edge (10) is formed by the end of the self-tapping screw pitch.
- said anchoring means (3) have a general S shape, as illustrated in FIGS. 5 and 6, and the center of gravity of the S shape coincides with the axis A of the drive means (2), as illustrated in Figure 7.
- each anchoring means (3) preferably comprises at least one radial cutting edge (11), positioned on a radius of the anchoring means, substantially perpendicular to the axis of the drive means, on the edge. connecting arms of the anchoring means, as well as at least one cutting edge in return (12) substantially parallel to the main cutting edge (10), as illustrated in FIGS. 5 and 6.
- FIG. 6 illustrates a version of the invention in which said main cutting edge (10) constitutes the base of an at least isosceles triangle, even equilateral, provided with cutting sides (10 ', 10'').
- each anchoring means (3) comprises two radial cutting edges (11) positioned substantially on the same radius of the anchoring means (3), on opposite edges, inside and outside, of the link arms.
- each anchoring means (3) comprises two radial cutting edges (11) positioned side by side on the inner face of the link arms.
- each anchoring means (3) preferably comprises a lumen (13) whose edges are at least partially sharp, as illustrated in FIG. 10.
- the cage according to the invention preferably comprises means for locking / unlocking in force the anchoring means (3) in their anchored position, constituted, for example by a boss intended to cooperate with a recess.
- the intersomatic cage (1) according to the invention, as illustrated in FIG. 11, comprises two pairs of anchoring means (3) rotating, for example in two opposite directions, each drive means (2) of each pair anchoring means (3) opening into the same front face (6).
- Fig 13 illustrates the double S intersomatic cage, in the anchored position.
- the cage is advantageously made of carbon. Such a material has a Young's modulus comparable to that of bone.
- the anchoring means are advantageously made of hydroxyapatite, or a material bound and sintered granules of calcium phosphate compound. The granules are bound with particles of calcium phosphate compound.
- the anchoring means can also be made of a metal alloy based on titanium or stainless steel.
- the anchoring means can also be made of phosphate bicalcium, phosphate tricalcium or porous tantalum.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
- Golf Clubs (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Materials For Medical Uses (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001507398A JP4189151B2 (ja) | 1999-07-01 | 2000-07-03 | 脊柱固定体部間ケージ |
DE60018988T DE60018988T2 (de) | 1999-07-01 | 2000-07-03 | Wirbelkäfig zur immobilisierung der wirbelsäule |
AT00948073T ATE291399T1 (de) | 1999-07-01 | 2000-07-03 | Wirbelkäfig zur immobilisierung der wirbelsäule |
AU61652/00A AU6165200A (en) | 1999-07-01 | 2000-07-03 | Interbody spinal stabilisation cage |
BR0011965-2A BR0011965A (pt) | 1999-07-01 | 2000-07-03 | Caixa intersomática para imobilização da raque |
EP00948073A EP1278486B1 (fr) | 1999-07-01 | 2000-07-03 | Cage intersomatique d'immobilisation du rachis |
CA002373788A CA2373788C (fr) | 1999-07-01 | 2000-07-03 | Cage intersomatique d'immobilisation du rachis |
IL14740000A IL147400A0 (en) | 1999-07-01 | 2000-07-03 | Interbody spinal stabilisation cage |
MXPA02000178A MXPA02000178A (es) | 1999-07-01 | 2000-07-03 | Jaula intercorporal para la estabilizacion de la columna vertebral-. |
IL147400A IL147400A (en) | 1999-07-01 | 2001-12-30 | Interbody spinal stabilisation cage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9908501A FR2795627A1 (fr) | 1999-07-01 | 1999-07-01 | Cage intersomatique d'immobilisation du rachis |
FR99/08501 | 1999-07-01 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/109,254 Continuation-In-Part US6770096B2 (en) | 1999-07-01 | 2002-03-27 | Interbody spinal stabilization cage and spinal stabilization method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001001894A1 true WO2001001894A1 (fr) | 2001-01-11 |
Family
ID=9547606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/001892 WO2001001894A1 (fr) | 1999-07-01 | 2000-07-03 | Cage intersomatique d'immobilisation du rachis |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP1278486B1 (fr) |
JP (1) | JP4189151B2 (fr) |
KR (1) | KR100673143B1 (fr) |
AT (1) | ATE291399T1 (fr) |
AU (1) | AU6165200A (fr) |
BR (1) | BR0011965A (fr) |
CA (1) | CA2373788C (fr) |
DE (1) | DE60018988T2 (fr) |
FR (1) | FR2795627A1 (fr) |
IL (2) | IL147400A0 (fr) |
MX (1) | MXPA02000178A (fr) |
RU (1) | RU2258488C2 (fr) |
WO (1) | WO2001001894A1 (fr) |
ZA (1) | ZA200200791B (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2846876A1 (fr) | 2002-11-12 | 2004-05-14 | Hassan Razian | Cage intervetebrale a lame d'ancrage mediane |
US6767367B1 (en) | 2002-02-02 | 2004-07-27 | Gary K. Michelson | Spinal fusion implant having deployable bone engaging projections |
US9248028B2 (en) | 2011-09-16 | 2016-02-02 | DePuy Synthes Products, Inc. | Removable, bone-securing cover plate for intervertebral fusion cage |
US9526620B2 (en) | 2009-03-30 | 2016-12-27 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
US9833331B2 (en) | 2009-12-31 | 2017-12-05 | Ldr Medical | Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument |
US10940016B2 (en) | 2017-07-05 | 2021-03-09 | Medos International Sarl | Expandable intervertebral fusion cage |
US12109127B2 (en) | 2010-09-23 | 2024-10-08 | DePuy Synthes Products, Inc. | Implant inserter having a laterally-extending dovetail engagement feature |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US7018415B1 (en) | 2002-09-23 | 2006-03-28 | Sdgi Holdings, Inc. | Expandable spinal fusion device and methods of promoting spinal fusion |
FR2916956B1 (fr) * | 2007-06-08 | 2012-12-14 | Ldr Medical | Cage intersomatique,prothese intervertebrale,dispositif d'ancrage et instrumentation d'implantation |
CZ2010155A3 (cs) * | 2010-03-03 | 2011-09-14 | Šrámek@Jirí | Samostojná (stand alone) PLIF a TLIF klec k fúzi pátere se stabilitou zajištenou závitovými dríky |
WO2011116136A1 (fr) | 2010-03-16 | 2011-09-22 | Pinnacle Spine Group, Llc | Implants intervertébraux et systèmes et méthodes d'implantation d'un greffon |
US9380932B1 (en) | 2011-11-02 | 2016-07-05 | Pinnacle Spine Group, Llc | Retractor devices for minimally invasive access to the spine |
US9693876B1 (en) | 2012-03-30 | 2017-07-04 | Ali H. MESIWALA | Spinal fusion implant and related methods |
US10070970B2 (en) | 2013-03-14 | 2018-09-11 | Pinnacle Spine Group, Llc | Interbody implants and graft delivery systems |
EP3361998B1 (fr) * | 2015-10-13 | 2020-01-08 | Globus Medical, Inc. | Dispositif et procédé de déploiement d'un dispositif d'ancrage pour la fusion intervertébrale |
FR3048176A1 (fr) | 2016-02-26 | 2017-09-01 | Ldr Medical | Systeme d'implants d'arthrodese rachidienne |
CN111839831B (zh) * | 2020-07-27 | 2023-06-30 | 北京市春立正达医疗器械股份有限公司 | 一种垂直植入的人工椎体 |
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- 2000-07-03 RU RU2002102498/14A patent/RU2258488C2/ru not_active IP Right Cessation
- 2000-07-03 DE DE60018988T patent/DE60018988T2/de not_active Expired - Fee Related
- 2000-07-03 AT AT00948073T patent/ATE291399T1/de not_active IP Right Cessation
- 2000-07-03 WO PCT/FR2000/001892 patent/WO2001001894A1/fr active IP Right Grant
- 2000-07-03 MX MXPA02000178A patent/MXPA02000178A/es active IP Right Grant
- 2000-07-03 EP EP00948073A patent/EP1278486B1/fr not_active Expired - Lifetime
- 2000-07-03 AU AU61652/00A patent/AU6165200A/en not_active Abandoned
- 2000-07-03 CA CA002373788A patent/CA2373788C/fr not_active Expired - Fee Related
- 2000-07-03 BR BR0011965-2A patent/BR0011965A/pt not_active IP Right Cessation
- 2000-07-03 KR KR1020017016892A patent/KR100673143B1/ko not_active IP Right Cessation
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Cited By (21)
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US7771475B2 (en) | 2002-02-02 | 2010-08-10 | Warsaw Orthopedic, Inc. | Spinal implant having deployable bone engaging projections |
US8579982B2 (en) | 2002-02-02 | 2013-11-12 | Warsaw Orthopedic, Inc. | Spinal implant having deployable bone engaging projections |
US6923830B2 (en) | 2002-02-02 | 2005-08-02 | Gary K. Michelson | Spinal fusion implant having deployable bone engaging projections |
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US10624758B2 (en) | 2009-03-30 | 2020-04-21 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
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US9833331B2 (en) | 2009-12-31 | 2017-12-05 | Ldr Medical | Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument |
US11246715B2 (en) | 2009-12-31 | 2022-02-15 | Ldr Medical | Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument |
US12109127B2 (en) | 2010-09-23 | 2024-10-08 | DePuy Synthes Products, Inc. | Implant inserter having a laterally-extending dovetail engagement feature |
US9248028B2 (en) | 2011-09-16 | 2016-02-02 | DePuy Synthes Products, Inc. | Removable, bone-securing cover plate for intervertebral fusion cage |
US10940016B2 (en) | 2017-07-05 | 2021-03-09 | Medos International Sarl | Expandable intervertebral fusion cage |
Also Published As
Publication number | Publication date |
---|---|
EP1278486B1 (fr) | 2005-03-23 |
ATE291399T1 (de) | 2005-04-15 |
BR0011965A (pt) | 2002-05-14 |
KR100673143B1 (ko) | 2007-01-22 |
MXPA02000178A (es) | 2003-07-21 |
RU2258488C2 (ru) | 2005-08-20 |
JP4189151B2 (ja) | 2008-12-03 |
IL147400A (en) | 2010-04-29 |
EP1278486A1 (fr) | 2003-01-29 |
CA2373788C (fr) | 2009-01-06 |
AU6165200A (en) | 2001-01-22 |
CA2373788A1 (fr) | 2001-01-11 |
DE60018988T2 (de) | 2006-04-13 |
JP2003503155A (ja) | 2003-01-28 |
IL147400A0 (en) | 2002-08-14 |
KR20020033648A (ko) | 2002-05-07 |
FR2795627A1 (fr) | 2001-01-05 |
ZA200200791B (en) | 2003-03-26 |
DE60018988D1 (de) | 2005-04-28 |
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