EP1105059A1 - Bone-anchoring element with snap-in spherical head - Google Patents
Bone-anchoring element with snap-in spherical headInfo
- Publication number
- EP1105059A1 EP1105059A1 EP98938570A EP98938570A EP1105059A1 EP 1105059 A1 EP1105059 A1 EP 1105059A1 EP 98938570 A EP98938570 A EP 98938570A EP 98938570 A EP98938570 A EP 98938570A EP 1105059 A1 EP1105059 A1 EP 1105059A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bone anchoring
- anchoring element
- central axis
- connecting part
- bone
- 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.)
- Withdrawn
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 97
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 124
- 239000007943 implant Substances 0.000 claims abstract description 21
- 210000002105 tongue Anatomy 0.000 claims description 9
- 230000001097 osteosynthetic effect Effects 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 210000004283 incisor Anatomy 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 239000011796 hollow space material Substances 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
- A61B17/8038—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being inserted in the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone 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
- A61B17/7007—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone 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
- A61B17/701—Longitudinal elements with a non-circular, e.g. rectangular, cross-section
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone 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, e.g. tourniquets
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/8635—Tips of screws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
Definitions
- a bearing body which can be designed, for example, as a bone plate, and the bone screw are coupled to one another by means of a ball joint.
- the ball joint enables the bone screw to be pivoted until the joint is blocked by means of a clamping element.
- the socket-shaped receptacle for the ball head of the bone screw only permits one-sided insertion of the bone screw into the bearing body from above, so that the bone screw must be screwed into the bone together with the bearing body.
- the bone anchoring element in a preferred embodiment, it comprises a hollow cylindrical shaft with a spherical connecting part attached concentrically to its central axis at the upper end of the shaft.
- This spherical connecting part can be inserted into a corresponding cavity in a further implant.
- the design of the spherical connecting part with tongues that can be deflected and rebounded in the radial direction to the central axis gives the connecting part an elasticity.
- This elastic design of the connecting part enables its compression or expansion, as a result of which the connecting part can be detachably snapped into the cavity of the further implant.
- Means are also provided on the connecting part, which allow its expansion. This makes it possible to establish the connecting part in the cavity and thus to fix the bone anchoring element with respect to the further implant.
- These means comprise a bore penetrating into the connecting part from the end face.
- the bore is provided with a conical recess in the part of the connecting part directed against the end face. This tapers from the end face towards the interior of the connecting part to a certain depth at which the conical recess ends forming a shoulder opposite the bore.
- the bore is provided with an internal thread, which enables a clamping screw to be screwed in with a conical screw head corresponding to the screwing.
- the cone angle of the screw head does not necessarily have to match that of the screwing.
- One of the plates has a continuous surface to its area with the thickness X on its upper cover surface, while the other plate has a continuous surface to its area with the thickness X on its lower cover surface.
- the parts of the plates, which are reduced in thickness, can thus be pushed one above the other in such a way that the two inserted connecting parts of the bone anchoring elements lie in the same plane.
- the bone anchoring elements are displaceable by a distance Z from one another due to the displaceability of the plates along their longitudinal axis.
- the distance Z is between 20 to 60 mm, preferably between 30 to 50 mm.
- the means in the plates for receiving the spherical connecting parts are designed as spherical-layer-shaped cavities in such a way that the connecting parts can be snapped into the cavities.
- the connecting means which are also formed in the form of a spherical layer, are pivotably mounted. This pivotability of the central axes of the bone anchoring elements in relation to the solder to the lower cover surface of the plates thus achieved covers an angular range between 15 ° and 25 °.
- the spherical layer-shaped cavities in the plates are designed so that they are perpendicular to the central axis Equatorial plane lies at a distance Y ⁇ X from the upper cover surface, this distance Y advantageously being between 50% and 75% of the thickness X of the plates.
- FIGS. 1 and 2 shows a partial section of the embodiment of the bone anchoring element according to the invention shown in FIGS. 1 and 2 with a connecting plate;
- FIG. 5 shows a plan view of the embodiment of the device according to the invention shown in FIG. 4.
- FIG. 1 and 2 show a variant of the bone anchoring element 1 according to the invention.
- This comprises a hollow cylindrical shaft 3 with a central axis 2, a lower end 11 and an upper end 10. Concentric to the central axis 2, a spherical connecting part 6 is attached to the upper end 10 of the shaft 3. Due to the design of the spherical connecting part 6 with tongues 14 which can be deflected and rebounded in the radial direction to the central axis 2, the connecting part 6 obtains an elasticity.
- the tongues 14 are formed by slots 7, which run parallel to the central axis 2 and penetrate the spherical connecting part 6 at a depth that extends deeper than the equatorial plane perpendicular to the central axis 2.
- the connecting part 6 is designed as a spherical layer with a spherical diameter D and a layer height U.
- the ratio U / D of the layer height U to the ball diameter D is 58% here.
- a semicircular recess 9 is provided between the spherical layer-shaped connecting part 6 and the upper end 10 of the shaft 3.
- Means 12 are also provided on the connecting part 6; 13; 34, which allow its expansion. This means 12; 13; 34 comprise a bore 34 penetrating from the end face 15 into the connecting part 6.
- the bore 34 is provided with a conical recess 13 in the part of the connecting part 6 directed against the end face 15. This tapers from the end face 15 towards the inside of the connecting part 6 to a certain depth at which the conical recess 13 ends forming a shoulder 36 opposite the bore 34.
- the bore 34 is provided with an internal thread 42, which enables the screwing in of a clamping screw with a conical screw head corresponding to the screwing 13.
- the shaft 3 of the bone anchoring element 1 has a height H in the direction of the central axis 2 and is provided with a bore 5 which is concentric with the central axis 2 and which has a depth T ⁇ H from the lower end 11 opposite the connecting part 6.
- the outer surface 35 of the shaft 3 has an external thread 4.
- the shaft 3 is provided at its upper end 10 with a larger diameter than the shaft 3 having flange 39.
- This flange 39 has six semicircular notches 40 which are at an angle of 60 ° to one another.
- the bone anchoring element 1 can be screwed into the bone by means of these notches 40 and a suitable tool. Instead of the notches 40, the flange 39 could also be provided with an external hexagon.
- the flange 39 also serves to prevent the bone anchoring element 1 from being screwed too far into the bone or the vertebral body.
- the connecting parts 6 provided with slots 7 and a likewise conical recess 13 are clamped against the wall of the spherical bores serving as means 19 for receiving the connecting parts 6 by means of the conical screw heads.
- the bone anchoring element 1 can be compared to the solder to the plates 21; 22 fix in the swiveled position by an angle of 20 ° in the plate 21; 22.
- the other plate 21 is provided with an elongated hole 38 through which the locking means 27 passes. Through the slot 38, the plates 21; 22 slidable against each other.
- the plates 21; 22 have a common longitudinal axis 30, a lower and an upper cover surface 16; 18. In the area of the means 19 designed as spherical cavities for receiving the connecting parts 6, the plates 21; 22 has a thickness X.
- the plates 21; 22 overlap on part of their length extending along the longitudinal axis 30. On this part the thickness of the plates 21, 22 is reduced to X / 2.
- One of the plates 22 has a continuous surface to its area with the thickness X on its upper cover surface 16, while the other plate 21 has a continuous surface to its area with the thickness X on its lower cover surface 18.
- the lateral surface 35 of the shaft 3 has an external thread 4 and is formed as a smooth surface over a partial length W measured from the lower end 11.
- the side wall of the shaft 3, which is of a hollow cylindrical design over this partial length, is perforated with radial through openings 31.
- the external thread 4 is advantageously designed to be self-forming.
- the lower end 11 of the shaft 3 opposite the connecting part 6 is provided on the end face with tangentially arranged cutting teeth 32.
- the connecting means 6, which are also formed in the form of a spherical layer, are pivotably mounted therein. This thus achieved pivotability of the central axes 2 of the bone anchoring elements 1 with respect to the perpendicular to the lower cover surface 18 of the plates 21; 22 comprises an angle 29 from inside 16 ° and outside 19 °.
- a Kirschner wire is first introduced concentrically into the bone.
- the bone anchoring element 1 is then screwed directly into the bone or vertebral body by means of a key which snaps into the ball head of the connecting part 6 and engages outside in the six notches 40.
- the key is pierced and is passed through the previously inserted Kirschner wire.
- the channel for receiving the hollow cylindrical shaft 3 is worked out of the bone by the incisors 31.
- the resulting bone chips are discharged into the interior of the hollow cylindrical shaft 3.
- the Kirschner wire can be removed again.
- the second bone anchoring element 1 is also introduced into the bone.
- the entire implant can be blocked in a desired position.
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)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH1998/000360 WO2000010474A1 (en) | 1998-08-21 | 1998-08-21 | Bone-anchoring element with snap-in spherical head |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1105059A1 true EP1105059A1 (en) | 2001-06-13 |
Family
ID=4551345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98938570A Withdrawn EP1105059A1 (en) | 1998-08-21 | 1998-08-21 | Bone-anchoring element with snap-in spherical head |
Country Status (7)
Country | Link |
---|---|
US (1) | US6508818B2 (en) |
EP (1) | EP1105059A1 (en) |
JP (1) | JP2002523129A (en) |
AU (1) | AU747042B2 (en) |
CA (1) | CA2341305A1 (en) |
WO (1) | WO2000010474A1 (en) |
ZA (1) | ZA994847B (en) |
Families Citing this family (161)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU736471B2 (en) * | 1998-08-21 | 2001-07-26 | Synthes Gmbh | A self-cutting, hollow-cylindrical bone-anchoring assembly |
AR027685A1 (en) * | 2000-03-22 | 2003-04-09 | Synthes Ag | METHOD AND METHOD FOR CARRYING OUT |
US7833250B2 (en) | 2004-11-10 | 2010-11-16 | Jackson Roger P | Polyaxial bone screw with helically wound capture connection |
US6726689B2 (en) * | 2002-09-06 | 2004-04-27 | Roger P. Jackson | Helical interlocking mating guide and advancement structure |
US8377100B2 (en) * | 2000-12-08 | 2013-02-19 | Roger P. Jackson | Closure for open-headed medical implant |
US8292926B2 (en) | 2005-09-30 | 2012-10-23 | Jackson Roger P | Dynamic stabilization connecting member with elastic core and outer sleeve |
US10729469B2 (en) | 2006-01-09 | 2020-08-04 | Roger P. Jackson | Flexible spinal stabilization assembly with spacer having off-axis core member |
US8353932B2 (en) | 2005-09-30 | 2013-01-15 | Jackson Roger P | Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member |
US7862587B2 (en) | 2004-02-27 | 2011-01-04 | Jackson Roger P | Dynamic stabilization assemblies, tool set and method |
US10258382B2 (en) * | 2007-01-18 | 2019-04-16 | Roger P. Jackson | Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord |
US7766947B2 (en) * | 2001-10-31 | 2010-08-03 | Ortho Development Corporation | Cervical plate for stabilizing the human spine |
US8876868B2 (en) * | 2002-09-06 | 2014-11-04 | Roger P. Jackson | Helical guide and advancement flange with radially loaded lip |
US8282673B2 (en) | 2002-09-06 | 2012-10-09 | Jackson Roger P | Anti-splay medical implant closure with multi-surface removal aperture |
US8257402B2 (en) * | 2002-09-06 | 2012-09-04 | Jackson Roger P | Closure for rod receiving orthopedic implant having left handed thread removal |
US20060009773A1 (en) * | 2002-09-06 | 2006-01-12 | Jackson Roger P | Helical interlocking mating guide and advancement structure |
WO2004089245A2 (en) * | 2003-04-04 | 2004-10-21 | Theken Surgical, Llc | Bone anchor |
US7621918B2 (en) | 2004-11-23 | 2009-11-24 | Jackson Roger P | Spinal fixation tool set and method |
US8540753B2 (en) | 2003-04-09 | 2013-09-24 | Roger P. Jackson | Polyaxial bone screw with uploaded threaded shank and method of assembly and use |
US6716214B1 (en) * | 2003-06-18 | 2004-04-06 | Roger P. Jackson | Polyaxial bone screw with spline capture connection |
US8652175B2 (en) * | 2003-05-02 | 2014-02-18 | Rachiotek, Llc | Surgical implant devices and systems including a sheath member |
US20050177164A1 (en) * | 2003-05-02 | 2005-08-11 | Carmen Walters | Pedicle screw devices, systems and methods having a preloaded set screw |
US20050171543A1 (en) * | 2003-05-02 | 2005-08-04 | Timm Jens P. | Spine stabilization systems and associated devices, assemblies and methods |
JP2006525098A (en) * | 2003-05-02 | 2006-11-09 | イェール・ユニバーシティ | Dynamic spine stabilizer |
US7713287B2 (en) * | 2003-05-02 | 2010-05-11 | Applied Spine Technologies, Inc. | Dynamic spine stabilizer |
US20050182400A1 (en) * | 2003-05-02 | 2005-08-18 | Jeffrey White | Spine stabilization systems, devices and methods |
US7615068B2 (en) * | 2003-05-02 | 2009-11-10 | Applied Spine Technologies, Inc. | Mounting mechanisms for pedicle screws and related assemblies |
US20050182401A1 (en) * | 2003-05-02 | 2005-08-18 | Timm Jens P. | Systems and methods for spine stabilization including a dynamic junction |
US7377923B2 (en) | 2003-05-22 | 2008-05-27 | Alphatec Spine, Inc. | Variable angle spinal screw assembly |
US8092500B2 (en) * | 2007-05-01 | 2012-01-10 | Jackson Roger P | Dynamic stabilization connecting member with floating core, compression spacer and over-mold |
US8366753B2 (en) * | 2003-06-18 | 2013-02-05 | Jackson Roger P | Polyaxial bone screw assembly with fixed retaining structure |
US8137386B2 (en) | 2003-08-28 | 2012-03-20 | Jackson Roger P | Polyaxial bone screw apparatus |
US7766915B2 (en) | 2004-02-27 | 2010-08-03 | Jackson Roger P | Dynamic fixation assemblies with inner core and outer coil-like member |
US8398682B2 (en) * | 2003-06-18 | 2013-03-19 | Roger P. Jackson | Polyaxial bone screw assembly |
US8926670B2 (en) | 2003-06-18 | 2015-01-06 | Roger P. Jackson | Polyaxial bone screw assembly |
US7967850B2 (en) | 2003-06-18 | 2011-06-28 | Jackson Roger P | Polyaxial bone anchor with helical capture connection, insert and dual locking assembly |
US20100211114A1 (en) * | 2003-06-18 | 2010-08-19 | Jackson Roger P | Polyaxial bone anchor with shelf capture connection |
US8377102B2 (en) | 2003-06-18 | 2013-02-19 | Roger P. Jackson | Polyaxial bone anchor with spline capture connection and lower pressure insert |
US8257398B2 (en) * | 2003-06-18 | 2012-09-04 | Jackson Roger P | Polyaxial bone screw with cam capture |
US7776067B2 (en) | 2005-05-27 | 2010-08-17 | Jackson Roger P | Polyaxial bone screw with shank articulation pressure insert and method |
US7527638B2 (en) | 2003-12-16 | 2009-05-05 | Depuy Spine, Inc. | Methods and devices for minimally invasive spinal fixation element placement |
US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
US7179261B2 (en) | 2003-12-16 | 2007-02-20 | Depuy Spine, Inc. | Percutaneous access devices and bone anchor assemblies |
US7621938B2 (en) * | 2004-01-15 | 2009-11-24 | Warsaw Orthopedic, Inc. | Spinal implant construct and method for implantation |
US7160300B2 (en) | 2004-02-27 | 2007-01-09 | Jackson Roger P | Orthopedic implant rod reduction tool set and method |
US9050148B2 (en) | 2004-02-27 | 2015-06-09 | Roger P. Jackson | Spinal fixation tool attachment structure |
US8152810B2 (en) | 2004-11-23 | 2012-04-10 | Jackson Roger P | Spinal fixation tool set and method |
JP2007525274A (en) | 2004-02-27 | 2007-09-06 | ロジャー・ピー・ジャクソン | Orthopedic implant rod reduction instrument set and method |
ZA200700451B (en) * | 2004-06-23 | 2008-10-29 | Applied Spine Technologies Inc | Systems and methods for spine stabilization |
US7651502B2 (en) | 2004-09-24 | 2010-01-26 | Jackson Roger P | Spinal fixation tool set and method for rod reduction and fastener insertion |
US8926672B2 (en) | 2004-11-10 | 2015-01-06 | Roger P. Jackson | Splay control closure for open bone anchor |
EP1811911A4 (en) | 2004-11-10 | 2012-01-11 | Roger P Jackson | Helical guide and advancement flange with break-off extensions |
US9168069B2 (en) | 2009-06-15 | 2015-10-27 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer |
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- 1998-08-21 JP JP2000565800A patent/JP2002523129A/en active Pending
- 1998-08-21 EP EP98938570A patent/EP1105059A1/en not_active Withdrawn
- 1998-08-21 AU AU87250/98A patent/AU747042B2/en not_active Ceased
- 1998-08-21 CA CA002341305A patent/CA2341305A1/en not_active Abandoned
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1999
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AU747042B2 (en) | 2002-05-09 |
CA2341305A1 (en) | 2000-03-02 |
US20010007941A1 (en) | 2001-07-12 |
JP2002523129A (en) | 2002-07-30 |
US6508818B2 (en) | 2003-01-21 |
WO2000010474A1 (en) | 2000-03-02 |
AU8725098A (en) | 2000-03-14 |
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