US20140379031A1 - Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device - Google Patents
Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device Download PDFInfo
- Publication number
- US20140379031A1 US20140379031A1 US14/315,684 US201414315684A US2014379031A1 US 20140379031 A1 US20140379031 A1 US 20140379031A1 US 201414315684 A US201414315684 A US 201414315684A US 2014379031 A1 US2014379031 A1 US 2014379031A1
- Authority
- US
- United States
- Prior art keywords
- bone anchoring
- anchoring device
- rod
- clamping part
- recess
- 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.)
- Abandoned
Links
Images
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
- A61B17/70—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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
-
- 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
-
- 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
- A61B17/7008—Longitudinal elements, e.g. rods with a cross-section which varies along its length with parts of, or attached to, the longitudinal elements, bearing against an outside of the screw or hook heads, e.g. nuts on threaded 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
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/702—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other having a core or insert, and a sleeve, whereby a screw or hook can move along the core or in the sleeve
-
- 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
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7031—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other made wholly or partly of flexible material
-
- 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
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
-
- 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
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
-
- 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
- A61B17/7046—Screws or hooks combined with longitudinal elements which do not contact vertebrae the screws or hooks being mobile in use relative to the longitudinal element
-
- 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
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/0084—Material properties low friction
- A61B2017/00845—Material properties low friction of moving parts with respect to each other
Definitions
- the invention relates to a bone anchoring device, in particular to a polyaxial bone screw which is connected to two stabilization rods and to a stabilization device having such a bone anchoring device, in particular for the stabilization of the spinal column.
- the stabilization device includes two bone anchoring elements, at least one of which is a polyaxial bone screw and a rigid rod with a longitudinal axis connecting them.
- An elastic element is inserted between the two bone anchoring elements.
- the elastic element acts on the bone anchoring elements to exert a force in a direction of the longitudinal axis.
- One of the bone anchoring elements is fixedly connected to the rod to prevent translational movement of the rod and the other bone anchoring element is slidably connected to the rod.
- EP 1 800 614 A 1 describes a dynamic stabilization device for bones or for vertebrae having at least two bone anchoring elements and at least one connection element in the form of an elastic loop connecting the bone anchoring elements.
- the bone anchoring element is in the form of a polyaxial bone screw having a receiving part which accommodates to two elastic loops each of which can be connected to a second bone anchoring element.
- a modular double-rod i.e. two rods
- each rod can be designed smaller than a single rod.
- the low profile cross-section of two rods compared to one single rod has also the advantage that the stiffness of the rods is enhanced.
- the stability in view of bending or torsional loads of the double-rod system is also enhanced.
- the dynamic properties of the stabilization device can be adjusted by selecting appropriate rods and/or adjusting the sliding motion of the rods by stops and/or dampening elements.
- the dynamic properties of the rods can vary.
- the rods can have the same or different elastic properties. They can be made of the same or different material.
- FIG. 1 shows a perspective side view of the stabilization device.
- FIG. 2 shows a perspective exploded view of the stabilization device.
- FIG. 3 shows an exploded view of the bone anchoring device according to a first embodiment.
- FIG. 4 shows a perspective view of the bone anchoring device of FIG. 3 in an assembled state.
- FIG. 5 shows a perspective view from the side of the first pressure element in a first embodiment.
- FIG. 6 shows a perspective view of the second pressure element in a first embodiment.
- FIG. 7 shows a partially sectional view of the bone anchoring device with the first and second pressure element according to the first embodiment.
- FIG. 8 shows a partially sectional view of the bone anchoring device with the first and second pressure element according to a second embodiment.
- FIG. 9 shows an exploded perspective view of the bone anchoring device with a first and second pressure element according to a third embodiment.
- FIG. 10 shows a perspective view of the bone anchoring device of FIG. 9 in an assembled state.
- FIG. 11 shows a perspective view of a rod according to another embodiment.
- the stabilization device includes a first polyaxial pedicle screw 1 , a second pedicle screw 2 and two rods 3 a, 3 b connecting them for stabilizing two adjacent vertebrae.
- the two rods 3 a, 3 b may be separate rods as shown in FIG. 2 .
- the rods 3 a, 3 b may be connected or formed in one-piece to define a single rod 3 .
- each rod a spring element 4 a, 4 b is provided and the rods 3 a, 3 b are connected by rod connectors 5 , 6 .
- the rods 3 a, 3 b are fixedly clamped in the second pedicle screw 2 and can slide through the first pedicle screw 1 as shown by the arrows. The sliding motion is limited by means of the rod connector 6 which connects the free ends of the rods 3 a, 3 b and acts as a stop.
- the springs 4 a, 4 b and the rod connector 5 limit the sliding motion of the rods 3 a, 3 b relative to the first pedicle screw 1 in the direction of the second pedicle screw 2 .
- the springs provide elastic dampening.
- the rod connectors 5 , 6 are sleeve shaped with two channels 5 a, 5 b, 6 a, 6 b , respectively, for guiding through the rods 3 a, 3 b.
- the distance of the channels corresponds to the distance of the rods in which they are guided through the pedicle screws.
- the rod connectors 5 , 6 connect the rod 3 a, 3 b by means of a press-fit connection i.e the diameter of the channels is selected such that the rods are firmly connected.
- the rod connectors 5 , 6 can be made of an elastomer material or any other body compatible material.
- the springs 4 a, 4 b in this embodiment are shown as helical springs encompassing the rods 3 a, 3 b like sleeves. They can be made of any body compatible material, in particular of titanium, nickel titanium alloys, for example nitinol, or other materials.
- the rods 3 a, 3 b exhibit a flexibility under forces having a component perpendicular to the rod axis, such as bending forces.
- the rods are made of non-compressible materials, such as stainless steel, titanium, nickel titanium alloys, such as nitinol, PEEK or carbon reinforced PEEK or other body compatible materials.
- rod connectors and the springs are only examples for the function of connecting the two rods, providing a stop and providing a dampening to the sliding motion.
- the pedicle screw 1 comprises a screw element 10 with a threaded shank 11 and a spherically segment-shaped head 12 . At the free end of the head 12 a recess 13 is provided for engagement with a tool.
- the pedicle screw 1 further comprises a receiving part 20 with a first end 21 and a second 22 and a coaxial bore 23 extending from the first end in the direction of the second end. At the second end 22 the bore 23 tapers to provide an opening and a seat 24 for the screw head 12 as shown in particular in FIG. 7 .
- the receiving part 20 further comprises a recess 25 extending from the first end 21 in the direction of the second end 22 which provides a channel through the receiving part in a direction perpendicular to the bore axis of bore 23 for guiding through the rods 3 a, 3 b.
- the recess provides two free legs 26 a, 26 b. Near the first end 21 the free legs 26 a, 26 b have an internal thread 27 for cooperation with a fixation screw 30 .
- the screw element 10 and the receiving part 20 as well as the fixation screw 30 are made of a rigid body compatible material, such as a body compatible metal like stainless steel or titanium or a titanium alloy, such as nitinol.
- the first pressure element 40 and the second pressure element 50 also form guiding elements for guiding the rods 3 a, 3 b through the receiving part 20 .
- the first pressure element 40 has a substantially cylindrical body part 41 which is sized such that the first pressure element 40 can be inserted in the receiving part and moved in an axial direction within the bore 23 .
- the first pressure element 40 comprises a cylindrical recess 42 shown in FIG. 7 in which a cylindrical insert 43 is provided.
- the insert 43 has on its side facing the head 12 of the screw element a spherical recess 44 the radius of which fits to the radius of spherical head 12 of the screw element.
- the first pressure element 40 further comprises a cuboid body part 45 which is shaped so as to fit in the recess 25 of the receiving part 20 as shown in particular in FIGS. 3 and 4 .
- the width of the body part 45 corresponds to the width of the recess 25 and the length is selected such that the first pressure element is flush with the outer surface 28 of the receiving part 20 as shown in FIG. 4 .
- the cuboid body part On its side opposite to the recess 42 the cuboid body part includes two cylinder segment-shaped recesses 46 a, 46 b the cylinder radius of which is slightly larger than the radius of the rods 3 a, 3 b.
- the recesses 46 a, 46 b extend perpendicular to the axis of the coaxial bore 23 of the receiving part 20 .
- the recesses 46 a , 46 b form channels for receiving the rods 3 a, 3 b. Since the recesses 46 a, 46 b are spaced apart from each other a rib 47 is formed between them. The depth of the recesses 46 a, 46 b is preferably slightly larger than the radius of the rods 3 a, 3 b.
- the first pressure element 40 also has a coaxial bore 48 for providing access to the head 12 of the screw element with a tool.
- the cylindrical insert 43 has a coaxial bore 49 .
- the cylindrical body part 41 and the cuboid body part 25 are shown to be made in one piece so that cylindrical segment-shaped flanges 41 a, 41 b are provided on each side of the channel 46 a, 46 b. The flanges facilitate the guidance of the first pressure element 40 within the receiving part 20 .
- the cuboid body part 45 prevents rotation of the first pressure element within the receiving part once the first pressure element is inserted into the recess 25 .
- the second pressure element 50 is substantially cuboid shaped with a width and length corresponding to that of the cuboid body part 45 of the first pressure element 40 . Therefore, it also fits into the recess 25 of the receiving part. On its long sides it comprises two cylindrical segment-shaped flanges 51 a , 51 b corresponding to the flanges 41 a, 41 b of the first pressure element. On its side opposite to the first pressure element 40 , the second pressure element 50 comprises a cylindrical recess 52 and a coaxial cylindrical projection 53 in which a corresponding ring-shaped projection 31 and a cylindrical recess 32 of the fixation screw 30 engage, as shown in FIG. 7 . Thereby, the fixation screw 30 can be rotatably connected to the pressure element 50 .
- the second pressure element 50 On its side facing the first pressure element, the second pressure element 50 comprises two longitudinal cylinder segment-shaped recesses 56 a, 56 b which are complementary in their size and distance to the channels 46 a, 46 b of the first pressure element.
- the channels 56 a, 56 b are spaced apart by a rib 57 .
- the first pressure element presses via the insert 43 onto the head 12 .
- the second pressure element 50 presses onto the first pressure element 40 thereby providing closed channels for the rods 3 a, 3 b which are accommodated therein with a gap 60 to the wall of the channel. Since the fixation screw 30 is rotatably connected to the second pressure element, the fixation screw 30 can be tightened when the second pressure element 50 is inserted.
- the first pressure element and the second pressure element can be made of a material which facilitates sliding of the rods 3 a, 3 b.
- the pressure elements can be made of titanium or a nickel titanium alloy which is coated or of PEEK or carbon reinforced PEEK.
- the insert 43 is preferably made of the same material as the head 12 of the screw, for example of a body compatible metal.
- the first pressure element itself can have a spherical recess to press onto the head.
- the rods 3 a , 3 b themselves can have a surface which facilitates sliding, for example a coated or otherwise treated surface.
- the second pedicle screw 2 shown in FIGS. 1 , 2 and 8 differs from the first pedicle screw 1 in the design of the first and second pressure elements. All other parts are identical and have the same reference numerals. Therefore, the description thereof is not repeated.
- the shape of the first pressure element 40 ′ and of the second pressure element 50 ′ of the second pedicle screw 2 is the same as that of the first pressure element 40 and the second pressure element 50 of the first pedicle screw 1 .
- the size of the channels 46 a ′, 46 b ′, 56 a ′, 56 b ′ is smaller than that of the channels of the first and second pressure element of the first pedicle screw.
- the radius of the channels is adapted to the radius of the rods 3 a, 3 b and depth of the channels is smaller than the radius of the rods 3 a, 3 b such that, as shown in FIG. 8 , in the assembled state the rods 3 a, 3 b are clamped between the first pressure element 40 ′ and the second pressure element 50 ′.
- FIGS. 9 and 10 A second embodiment of the stabilization device is shown in FIGS. 9 and 10 without the rods.
- the second embodiment differs from the first embodiment described with reference to FIGS. 1 to 8 only in the shape of the first and second pressure elements 400 , 500 .
- the length of the channels 460 a, 460 b is smaller than the diameter of the cylindrical body part 410 . Therefore, the first pressure element 400 and the second pressure element 500 are arranged completely within the cylindrical bore 23 of the receiving part.
- the pedicle screws and the design of the pressure elements can be such that more than two rods can be accommodated. It is possible to use rods with different elastic properties. It is sufficient, if one of the pressure elements has the channels for guiding the rods, however, it is advantageous if the rods are guided from below and from the top by the channels.
- the shape of the lower part of the first pressure element can be flat, however, a shape adapted to the shape of the head of the screw 12 is advantageous for distributing the pressure onto the head.
- the fixation element can be a two-part fixation screw wherein the first screw element of a bushing type presses onto the first pressure element for locking of the head 12 and a second screw element of a set screw type arranged within the first screw element presses onto the second pressure element for fixation of the rods in the embodiment shown in FIG. 8 .
- the receiving part can be shaped as a top loader as shown in the figures or a bottom loader in which the screw element 10 is introduced from the bottom, i.e. the second end of the receiving part.
- the shank of the screw element does not have to have a thread. It can be in the form of a hook, a nail or can have barb elements for anchoring in the bone.
- the springs can be also provided adjacent the outer stop 6 . It is also conceivable that the rods themselves have an axial elastic spring portion.
- the screw elements of the pedicle screws 1 , 2 which have been inserted into the receiving parts 20 are screwed into adjacent vertebrae.
- the first pressure elements can be preassembled so that after alignment of the receiving parts the rods 3 a, 3 b can be inserted into the receiving parts and the channels of the first pressure element, respectively.
- the rods 3 a, 3 b with the stops and the springs can be preassembled as well and can be inserted as a double-rod system.
- the first pedicle screw and the stop 6 points in the direction the patient's head.
- the arrangement of the pedicle screws depends on the specific clinical situation.
- the angular position of the screw elements relative to the receiving parts is fixed by inserting the fixation screw together with the second pressure element and tightening the fixation screw.
- the rods 3 a, 3 b are fixed simultaneously with the screw head 12 .
- the head 12 of the screw element is fixed while the rods can still slide within the channels.
- the rods can slide through the receiving part of the first pedicle screw during flexion or extension of the spinal motion segment, whereby the sliding movement is limited by the rod connectors 6 and 5 acting as stops and dampened by the springs 4 a, 4 b .
- the rods may experience bending forces and can bend to some extend provided by the flexibility of the material of the rods.
Abstract
A stabilization device for bone parts or vertebrae includes two bone anchoring devices for anchoring in the bone parts or vertebrae. At least one of the bone anchoring devices includes an anchoring element with an anchoring section for anchoring in a bone part or a vertebra and a head, and a receiving part for receiving a stabilization rod. The receiving part has a seat for receiving the head so that the head can pivot with respect to the receiving part. The stabilization device includes a first pressure element which is movable in the receiving part so that it can be pressed onto the head to lock the angular position of the head. The stabilization device includes at least two stabilization rod sections, and at least two guiding channels within the receiving part which have a distance from each other for guiding through the at least two stabilization rod sections so that the rod sections do not touch each other.
Description
- The present application is a continuation of U.S. patent application Ser. No. 12/571,299, filed Sep. 30, 2009, which claims the benefit of U.S. Provisional Patent Application Ser. No. 61/103,858, filed Oct. 8, 2008, the contents of which are hereby incorporated by reference in their entirety, and claims priority from European Patent Application No. 08 017 644.9, filed Oct. 8, 2008, the contents of which are hereby incorporated by reference in their entirety.
- The invention relates to a bone anchoring device, in particular to a polyaxial bone screw which is connected to two stabilization rods and to a stabilization device having such a bone anchoring device, in particular for the stabilization of the spinal column.
- A dynamic stabilization device for bones, in particular for vertebrae, is described in US 2004/0049190 A1. The stabilization device includes two bone anchoring elements, at least one of which is a polyaxial bone screw and a rigid rod with a longitudinal axis connecting them. An elastic element is inserted between the two bone anchoring elements. The elastic element acts on the bone anchoring elements to exert a force in a direction of the longitudinal axis. One of the bone anchoring elements is fixedly connected to the rod to prevent translational movement of the rod and the other bone anchoring element is slidably connected to the rod.
-
EP 1 800 614 A 1 describes a dynamic stabilization device for bones or for vertebrae having at least two bone anchoring elements and at least one connection element in the form of an elastic loop connecting the bone anchoring elements. In one embodiment, the bone anchoring element is in the form of a polyaxial bone screw having a receiving part which accommodates to two elastic loops each of which can be connected to a second bone anchoring element. - Based on the foregoing, there is a need to provide a bone anchoring device and a stabilization device comprising such a bone anchoring device which allows the dynamic stabilization of bone parts or vertebrae and which allows a variable design of elastic properties of the dynamic stabilization device.
- The provision of a modular double-rod, i.e. two rods, allows to design the bone anchoring device more compact in terms of the height of the bone anchoring device, since each rod can be designed smaller than a single rod. The low profile cross-section of two rods compared to one single rod has also the advantage that the stiffness of the rods is enhanced. The stability in view of bending or torsional loads of the double-rod system is also enhanced.
- The dynamic properties of the stabilization device can be adjusted by selecting appropriate rods and/or adjusting the sliding motion of the rods by stops and/or dampening elements. The dynamic properties of the rods can vary. For example the rods can have the same or different elastic properties. They can be made of the same or different material.
-
FIG. 1 shows a perspective side view of the stabilization device. -
FIG. 2 shows a perspective exploded view of the stabilization device. -
FIG. 3 shows an exploded view of the bone anchoring device according to a first embodiment. -
FIG. 4 shows a perspective view of the bone anchoring device ofFIG. 3 in an assembled state. -
FIG. 5 shows a perspective view from the side of the first pressure element in a first embodiment. -
FIG. 6 shows a perspective view of the second pressure element in a first embodiment. -
FIG. 7 shows a partially sectional view of the bone anchoring device with the first and second pressure element according to the first embodiment. -
FIG. 8 shows a partially sectional view of the bone anchoring device with the first and second pressure element according to a second embodiment. -
FIG. 9 shows an exploded perspective view of the bone anchoring device with a first and second pressure element according to a third embodiment. -
FIG. 10 shows a perspective view of the bone anchoring device ofFIG. 9 in an assembled state. -
FIG. 11 shows a perspective view of a rod according to another embodiment. - The invention is now described in detail with reference to the embodiment of the stabilization device shown in
FIGS. 1 to 8 . The stabilization device includes a firstpolyaxial pedicle screw 1, asecond pedicle screw 2 and tworods rods FIG. 2 . Alternatively, as shown inFIG. 11 , therods single rod 3. - On each rod a
spring element rods rod connectors 5, 6. Therods second pedicle screw 2 and can slide through thefirst pedicle screw 1 as shown by the arrows. The sliding motion is limited by means of the rod connector 6 which connects the free ends of therods springs rod connector 5 limit the sliding motion of therods first pedicle screw 1 in the direction of thesecond pedicle screw 2. The springs provide elastic dampening. Therod connectors 5, 6 are sleeve shaped with twochannels rods rod connectors 5, 6 connect therod rod connectors 5, 6 can be made of an elastomer material or any other body compatible material. - The
springs rods - The
rods - It should be noted that the rod connectors and the springs are only examples for the function of connecting the two rods, providing a stop and providing a dampening to the sliding motion.
- Next, the
first pedicle screw 1 will be described in detail with reference toFIGS. 3 to 7 . Thepedicle screw 1 comprises ascrew element 10 with a threadedshank 11 and a spherically segment-shaped head 12. At the free end of the head 12 arecess 13 is provided for engagement with a tool. Thepedicle screw 1 further comprises a receivingpart 20 with afirst end 21 and a second 22 and acoaxial bore 23 extending from the first end in the direction of the second end. At thesecond end 22 the bore 23 tapers to provide an opening and aseat 24 for thescrew head 12 as shown in particular inFIG. 7 . - The
receiving part 20 further comprises arecess 25 extending from thefirst end 21 in the direction of thesecond end 22 which provides a channel through the receiving part in a direction perpendicular to the bore axis ofbore 23 for guiding through therods free legs first end 21 thefree legs internal thread 27 for cooperation with afixation screw 30. Thescrew element 10 and the receivingpart 20 as well as thefixation screw 30 are made of a rigid body compatible material, such as a body compatible metal like stainless steel or titanium or a titanium alloy, such as nitinol. - For locking the
head 12 and in consequence the angular position of thescrew element 10 within theseat 24 of the receiving 20 afirst pressure element 40 and asecond pressure element 50 are provided. Thefirst pressure element 40 and thesecond pressure element 50 also form guiding elements for guiding therods receiving part 20. Thefirst pressure element 40 has a substantiallycylindrical body part 41 which is sized such that thefirst pressure element 40 can be inserted in the receiving part and moved in an axial direction within thebore 23. At its side facing thehead 12 of the screw element thefirst pressure element 40 comprises acylindrical recess 42 shown inFIG. 7 in which acylindrical insert 43 is provided. Theinsert 43 has on its side facing thehead 12 of the screw element aspherical recess 44 the radius of which fits to the radius ofspherical head 12 of the screw element. - The
first pressure element 40 further comprises acuboid body part 45 which is shaped so as to fit in therecess 25 of the receivingpart 20 as shown in particular inFIGS. 3 and 4 . The width of thebody part 45 corresponds to the width of therecess 25 and the length is selected such that the first pressure element is flush with theouter surface 28 of the receivingpart 20 as shown inFIG. 4 . On its side opposite to therecess 42 the cuboid body part includes two cylinder segment-shapedrecesses rods recesses coaxial bore 23 of the receivingpart 20. Therecesses rods recesses rib 47 is formed between them. The depth of therecesses rods first pressure element 40 also has acoaxial bore 48 for providing access to thehead 12 of the screw element with a tool. Similarly, thecylindrical insert 43 has acoaxial bore 49. Thecylindrical body part 41 and thecuboid body part 25 are shown to be made in one piece so that cylindrical segment-shapedflanges channel first pressure element 40 within the receivingpart 20. Thecuboid body part 45 prevents rotation of the first pressure element within the receiving part once the first pressure element is inserted into therecess 25. - The
second pressure element 50 is substantially cuboid shaped with a width and length corresponding to that of thecuboid body part 45 of thefirst pressure element 40. Therefore, it also fits into therecess 25 of the receiving part. On its long sides it comprises two cylindrical segment-shapedflanges flanges first pressure element 40, thesecond pressure element 50 comprises acylindrical recess 52 and a coaxialcylindrical projection 53 in which a corresponding ring-shapedprojection 31 and a cylindrical recess 32 of thefixation screw 30 engage, as shown inFIG. 7 . Thereby, thefixation screw 30 can be rotatably connected to thepressure element 50. - On its side facing the first pressure element, the
second pressure element 50 comprises two longitudinal cylinder segment-shapedrecesses channels channels rib 57. - In the assembled state shown in
FIG. 7 the first pressure element presses via theinsert 43 onto thehead 12. Thesecond pressure element 50 presses onto thefirst pressure element 40 thereby providing closed channels for therods gap 60 to the wall of the channel. Since thefixation screw 30 is rotatably connected to the second pressure element, thefixation screw 30 can be tightened when thesecond pressure element 50 is inserted. - The first pressure element and the second pressure element can be made of a material which facilitates sliding of the
rods insert 43 is preferably made of the same material as thehead 12 of the screw, for example of a body compatible metal. Instead of providing theinsert 43 the first pressure element itself can have a spherical recess to press onto the head. Instead of providing the first and second pressure element of a material which facilitates sliding or which is coated or treated to facilitate sliding, therods - The
second pedicle screw 2 shown inFIGS. 1 , 2 and 8 differs from thefirst pedicle screw 1 in the design of the first and second pressure elements. All other parts are identical and have the same reference numerals. Therefore, the description thereof is not repeated. The shape of thefirst pressure element 40′ and of thesecond pressure element 50′ of thesecond pedicle screw 2 is the same as that of thefirst pressure element 40 and thesecond pressure element 50 of thefirst pedicle screw 1. However, the size of thechannels 46 a′, 46 b′, 56 a′, 56 b′ is smaller than that of the channels of the first and second pressure element of the first pedicle screw. The radius of the channels is adapted to the radius of therods rods FIG. 8 , in the assembled state therods first pressure element 40′ and thesecond pressure element 50′. - A second embodiment of the stabilization device is shown in
FIGS. 9 and 10 without the rods. The second embodiment differs from the first embodiment described with reference toFIGS. 1 to 8 only in the shape of the first andsecond pressure elements channels cylindrical body part 410. Therefore, thefirst pressure element 400 and thesecond pressure element 500 are arranged completely within the cylindrical bore 23 of the receiving part. - Modifications of the above described embodiments are conceivable. For example, the pedicle screws and the design of the pressure elements can be such that more than two rods can be accommodated. It is possible to use rods with different elastic properties. It is sufficient, if one of the pressure elements has the channels for guiding the rods, however, it is advantageous if the rods are guided from below and from the top by the channels. The shape of the lower part of the first pressure element can be flat, however, a shape adapted to the shape of the head of the
screw 12 is advantageous for distributing the pressure onto the head. - The fixation element can be a two-part fixation screw wherein the first screw element of a bushing type presses onto the first pressure element for locking of the
head 12 and a second screw element of a set screw type arranged within the first screw element presses onto the second pressure element for fixation of the rods in the embodiment shown inFIG. 8 . - The receiving part can be shaped as a top loader as shown in the figures or a bottom loader in which the
screw element 10 is introduced from the bottom, i.e. the second end of the receiving part. - The shank of the screw element does not have to have a thread. It can be in the form of a hook, a nail or can have barb elements for anchoring in the bone.
- The springs can be also provided adjacent the outer stop 6. It is also conceivable that the rods themselves have an axial elastic spring portion.
- In use, first the screw elements of the pedicle screws 1, 2 which have been inserted into the receiving
parts 20 are screwed into adjacent vertebrae. The first pressure elements can be preassembled so that after alignment of the receiving parts therods rods - Next, after the receiving parts and the rods are aligned the angular position of the screw elements relative to the receiving parts is fixed by inserting the fixation screw together with the second pressure element and tightening the fixation screw. In the case of the
second pedicle screw 2 as shown inFIGS. 1 , 2 and 8 therods screw head 12. In the case of the first pedicle screw only thehead 12 of the screw element is fixed while the rods can still slide within the channels. - As shown in
FIG. 1 the rods can slide through the receiving part of the first pedicle screw during flexion or extension of the spinal motion segment, whereby the sliding movement is limited by therod connectors 6 and 5 acting as stops and dampened by thesprings
Claims (13)
1-28. (canceled)
29. A polyaxial bone anchoring device comprising:
an anchoring element comprising a shank for anchoring a bone part or a vertebra and a head;
a receiving part configured to pivotably receive the head, the receiving part having a first end, a second end opposite to the first end, a coaxial bore, a first recess and a second recess each adjacent to the first end for receiving a rod, and a central axis extending through the first end and the second end, the receiving part comprising two legs separated by the coaxial bore and the first and second recesses, a longitudinal axis of the recesses being substantially perpendicular to the central axis;
a first clamping part having a rod supporting surface that extends from the coaxial bore into the first recess when assembled in the receiving part;
a second clamping part configured to exert pressure on the rod when the rod is in the coaxial bore; and
a locking device configured to exert pressure on the second clamping part to secure the rod in the coaxial bore;
wherein, when the bone anchoring device is assembled, the first clamping part is located between the head of the anchoring element and the second clamping part.
30. The polyaxial bone anchoring device of claim 29 , wherein the rod supporting surface has a longitudinal axis perpendicular to the central axis.
31. The polyaxial bone anchoring device of claim 29 , wherein the first clamping part further comprises a coaxial bore that is coaxial to the central axis.
32. The polyaxial bone anchoring device of claim 29 , wherein rod supporting surface of the first clamping part extends from the coaxial bore of the receiving part into the second recess.
33. The polyaxial bone anchoring device of claim 32 , wherein the second clamping part extends from the coaxial bore of the receiving part into the first recess and into the second recess.
34. The polyaxial bone anchoring device of claim 29 , wherein the second clamping part has a rod facing surface having a longitudinal axis perpendicular to the central axis.
35. The polyaxial bone anchoring device of claim 29 , wherein respective free ends of the first clamping part and the second clamping part extend into the first recess such that the free ends are flush with an outer surface of the receiving part.
36. The polyaxial bone anchoring device of claim 29 , wherein the second clamping part is configured to be rotatably coupled to the locking device.
37. The polyaxial bone anchoring device of claim 29 , wherein the first clamping part further comprises a first portion that is configured to exert pressure on the head.
38. The polyaxial bone anchoring device of claim 37 , wherein the first portion has a recess at a side opposite to the rod supporting surface and the recess is configured to accommodate a portion of the head.
39. A spinal stabilization system comprising at least two polyaxial bone anchoring devices according to claim 29 and a rod,
wherein the rod comprises a nickel-titanium alloy.
40. The polyaxial bone anchoring device of claim 37 , wherein the first portion has a cylindrical outer surface configured to be received in the coaxial bore and a spherical inner surface configured to engage the head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/315,684 US20140379031A1 (en) | 2008-10-08 | 2014-06-26 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10385808P | 2008-10-08 | 2008-10-08 | |
EP08017644A EP2174608B1 (en) | 2008-10-08 | 2008-10-08 | Bone anchoring device and stabilization device for bone parts or vertebrae |
EP08017644.9 | 2008-10-08 | ||
US12/571,299 US8795336B2 (en) | 2008-10-08 | 2009-09-30 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
US14/315,684 US20140379031A1 (en) | 2008-10-08 | 2014-06-26 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/571,299 Continuation US8795336B2 (en) | 2008-10-08 | 2009-09-30 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140379031A1 true US20140379031A1 (en) | 2014-12-25 |
Family
ID=40212895
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/571,299 Active 2030-05-01 US8795336B2 (en) | 2008-10-08 | 2009-09-30 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
US14/315,684 Abandoned US20140379031A1 (en) | 2008-10-08 | 2014-06-26 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/571,299 Active 2030-05-01 US8795336B2 (en) | 2008-10-08 | 2009-09-30 | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device |
Country Status (7)
Country | Link |
---|---|
US (2) | US8795336B2 (en) |
EP (1) | EP2174608B1 (en) |
JP (1) | JP2010088887A (en) |
KR (1) | KR20100039809A (en) |
CN (1) | CN101716096B (en) |
ES (1) | ES2392362T3 (en) |
TW (1) | TW201014562A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150025579A1 (en) * | 2013-07-19 | 2015-01-22 | Lutz Biedermann | Polyaxial bone anchoring device |
US20200030004A1 (en) * | 2009-06-15 | 2020-01-30 | Roger P. Jackson | Pivotal bone anchor assembly having insert with rotation blocking extensions and downward facing collet |
US20200069337A1 (en) * | 2008-08-01 | 2020-03-05 | Roger P. Jackson | Bone anchor insert with rotation blocking extensions and tool forced displacement |
US10765455B2 (en) | 2009-06-15 | 2020-09-08 | Roger P. Jackson | Pivotal bone anchor twist-in-place friction fit insert with side notches |
US10869694B2 (en) | 2009-06-15 | 2020-12-22 | Roger P. Jackson | Pivotal bone anchor assembly with independent locking by a tool engaging an insert |
US10918420B2 (en) | 2009-06-15 | 2021-02-16 | Roger P. Jackson | Pivotal bone anchor assembly with forced downward displacement of a compression insert by a tool |
US10939940B2 (en) | 2010-11-02 | 2021-03-09 | Roger P. Jackson | Pivotal bone anchor assembly with pressure insert and snap on articulating retainer |
US11109896B2 (en) | 2009-06-15 | 2021-09-07 | Roger P. Jackson | Uniplanar bone anchor assembly |
US11234738B2 (en) | 2018-11-16 | 2022-02-01 | Roger P. Jackson | Pivotal bone anchor assembly having a deployable collet insert with internal pressure ring |
US11234745B2 (en) | 2005-07-14 | 2022-02-01 | Roger P. Jackson | Polyaxial bone screw assembly with partially spherical screw head and twist in place pressure insert |
US11337734B2 (en) | 2019-05-22 | 2022-05-24 | Nuvasive, Inc. | Posterior spinal fixation screws |
US11464549B2 (en) | 2009-06-15 | 2022-10-11 | Roger P. Jackson | Pivotal bone anchor assembly with horizontal tool engagement grooves and insert with upright arms having flared outer portions |
US11583318B2 (en) | 2018-12-21 | 2023-02-21 | Paradigm Spine, Llc | Modular spine stabilization system and associated instruments |
Families Citing this family (72)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7833250B2 (en) | 2004-11-10 | 2010-11-16 | Jackson Roger P | Polyaxial bone screw with helically wound capture connection |
US8292926B2 (en) | 2005-09-30 | 2012-10-23 | Jackson Roger P | Dynamic stabilization connecting member with elastic core and outer sleeve |
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 |
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 |
US10729469B2 (en) | 2006-01-09 | 2020-08-04 | Roger P. Jackson | Flexible spinal stabilization assembly with spacer having off-axis core member |
US7862587B2 (en) | 2004-02-27 | 2011-01-04 | Jackson Roger P | Dynamic stabilization assemblies, tool set and method |
US8876868B2 (en) | 2002-09-06 | 2014-11-04 | Roger P. Jackson | Helical guide and advancement flange with radially loaded lip |
US7621918B2 (en) | 2004-11-23 | 2009-11-24 | Jackson Roger P | Spinal fixation tool set and method |
US7377923B2 (en) | 2003-05-22 | 2008-05-27 | Alphatec Spine, Inc. | Variable angle spinal screw assembly |
US8936623B2 (en) | 2003-06-18 | 2015-01-20 | Roger P. Jackson | Polyaxial bone screw assembly |
US7766915B2 (en) | 2004-02-27 | 2010-08-03 | Jackson Roger P | Dynamic fixation assemblies with inner core and outer coil-like member |
US7776067B2 (en) | 2005-05-27 | 2010-08-17 | Jackson Roger P | Polyaxial bone screw with shank articulation pressure insert and method |
US7179261B2 (en) | 2003-12-16 | 2007-02-20 | Depuy Spine, Inc. | Percutaneous access devices and bone anchor assemblies |
US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
US7527638B2 (en) | 2003-12-16 | 2009-05-05 | Depuy Spine, Inc. | Methods and devices for minimally invasive spinal fixation element placement |
US8152810B2 (en) | 2004-11-23 | 2012-04-10 | Jackson Roger P | Spinal fixation tool set and method |
WO2005092218A1 (en) | 2004-02-27 | 2005-10-06 | Jackson Roger P | Orthopedic implant rod reduction tool set and method |
US11241261B2 (en) | 2005-09-30 | 2022-02-08 | Roger P Jackson | Apparatus and method for soft spinal stabilization using a tensionable cord and releasable end structure |
US7160300B2 (en) | 2004-02-27 | 2007-01-09 | Jackson Roger P | Orthopedic implant rod reduction tool set and method |
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 |
US9216041B2 (en) * | 2009-06-15 | 2015-12-22 | Roger P. Jackson | Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts |
US8308782B2 (en) | 2004-11-23 | 2012-11-13 | Jackson Roger P | Bone anchors with longitudinal connecting member engaging inserts and closures for fixation and optional angulation |
WO2006057837A1 (en) | 2004-11-23 | 2006-06-01 | Jackson Roger P | Spinal fixation tool attachment structure |
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 |
US7901437B2 (en) | 2007-01-26 | 2011-03-08 | Jackson Roger P | Dynamic stabilization member with molded connection |
US8105368B2 (en) | 2005-09-30 | 2012-01-31 | Jackson Roger P | Dynamic stabilization connecting member with slitted core and outer sleeve |
EP2088945A4 (en) | 2006-12-08 | 2010-02-17 | Roger P Jackson | Tool system for dynamic spinal implants |
US8475498B2 (en) | 2007-01-18 | 2013-07-02 | Roger P. Jackson | Dynamic stabilization connecting member with cord connection |
US8366745B2 (en) | 2007-05-01 | 2013-02-05 | Jackson Roger P | Dynamic stabilization assembly having pre-compressed spacers with differential displacements |
US10792074B2 (en) | 2007-01-22 | 2020-10-06 | Roger P. Jackson | Pivotal bone anchor assemly with twist-in-place friction fit insert |
US10383660B2 (en) | 2007-05-01 | 2019-08-20 | Roger P. Jackson | Soft stabilization assemblies with pretensioned cords |
US20090105756A1 (en) | 2007-10-23 | 2009-04-23 | Marc Richelsoph | Spinal implant |
US8043340B1 (en) * | 2008-06-09 | 2011-10-25 | Melvin Law | Dynamic spinal stabilization system |
US8784453B1 (en) | 2008-06-09 | 2014-07-22 | Melvin Law | Dynamic spinal stabilization system |
EP2484300B1 (en) * | 2008-09-05 | 2015-05-20 | Biedermann Technologies GmbH & Co. KG | Stabilization device for bones, in particular for the spinal column |
US9603629B2 (en) | 2008-09-09 | 2017-03-28 | Intelligent Implant Systems Llc | Polyaxial screw assembly |
GB2465156B (en) | 2008-11-05 | 2012-09-26 | Dalmatic Lystrup As | Bone fixation system |
US11229457B2 (en) | 2009-06-15 | 2022-01-25 | Roger P. Jackson | Pivotal bone anchor assembly with insert tool deployment |
US8998959B2 (en) | 2009-06-15 | 2015-04-07 | Roger P Jackson | Polyaxial bone anchors with pop-on shank, fully constrained friction fit retainer and lock and release insert |
US9668771B2 (en) | 2009-06-15 | 2017-06-06 | Roger P Jackson | Soft stabilization assemblies with off-set connector |
US20230404629A1 (en) * | 2010-05-14 | 2023-12-21 | Roger P. Jackson | Pivotal bone anchor assembly and method for use thereof |
US9113960B2 (en) * | 2010-06-08 | 2015-08-25 | Globus Medical, Inc. | Conforming bone stabilization receiver |
JP2013540468A (en) | 2010-09-08 | 2013-11-07 | ロジャー・ピー・ジャクソン | Dynamic fixing member having an elastic part and an inelastic part |
WO2012076005A2 (en) * | 2010-12-08 | 2012-06-14 | Aces Gmbh | Dynamic bone-anchoring device |
JP5865479B2 (en) | 2011-03-24 | 2016-02-17 | ロジャー・ピー・ジャクソン | Multiaxial bone anchor with compound joint and pop-mounted shank |
EP2505155A1 (en) * | 2011-03-31 | 2012-10-03 | Spinelab AG | Spinal implant for stabilising and reinforcing spinal bodies of a spine |
JP2014533136A (en) | 2011-10-05 | 2014-12-11 | マーク・エイ・ドッドソン | Module retractor and related methods |
US8911479B2 (en) | 2012-01-10 | 2014-12-16 | Roger P. Jackson | Multi-start closures for open implants |
CN103356275B (en) * | 2012-03-29 | 2016-06-01 | 董健文 | A kind of Micro-movement lumber pedicle screw elastic-fixation system |
US8911478B2 (en) | 2012-11-21 | 2014-12-16 | Roger P. Jackson | Splay control closure for open bone anchor |
US10058354B2 (en) | 2013-01-28 | 2018-08-28 | Roger P. Jackson | Pivotal bone anchor assembly with frictional shank head seating surfaces |
US8852239B2 (en) | 2013-02-15 | 2014-10-07 | Roger P Jackson | Sagittal angle screw with integral shank and receiver |
US9044273B2 (en) | 2013-10-07 | 2015-06-02 | Intelligent Implant Systems, Llc | Polyaxial plate rod system and surgical procedure |
US9566092B2 (en) | 2013-10-29 | 2017-02-14 | Roger P. Jackson | Cervical bone anchor with collet retainer and outer locking sleeve |
US9717533B2 (en) | 2013-12-12 | 2017-08-01 | Roger P. Jackson | Bone anchor closure pivot-splay control flange form guide and advancement structure |
US9451993B2 (en) | 2014-01-09 | 2016-09-27 | Roger P. Jackson | Bi-radial pop-on cervical bone anchor |
EP2939638B1 (en) * | 2014-04-30 | 2018-04-11 | Zimmer GmbH | A set for connecting a prosthetic assembly of an artificial joint to a bone |
US10064658B2 (en) | 2014-06-04 | 2018-09-04 | Roger P. Jackson | Polyaxial bone anchor with insert guides |
US9597119B2 (en) * | 2014-06-04 | 2017-03-21 | Roger P. Jackson | Polyaxial bone anchor with polymer sleeve |
US9949763B2 (en) * | 2014-06-13 | 2018-04-24 | Warsaw Orthopedic, Inc. | Bone fastener and methods of use |
CN105078562A (en) * | 2015-03-13 | 2015-11-25 | 上海三友医疗器械有限公司 | Medical screw with connector |
EP3100692A1 (en) * | 2015-06-04 | 2016-12-07 | Zimmer Spine | Spinal dynamic stabilization system |
JP6892993B2 (en) * | 2016-01-22 | 2021-06-23 | 京セラ株式会社 | Spinal screw assembly |
KR102468226B1 (en) * | 2017-03-10 | 2022-11-17 | 유니버시티 오브 워싱톤 | Method and system for measuring and evaluating the stability of medical implants |
FR3073731A1 (en) * | 2017-11-22 | 2019-05-24 | Hassan Razian | SYSTEM FOR CONNECTING TWO PORTIONS OF BONES BETWEEN THEM WHEN ONE MUST MOVE IN RELATION TO THE OTHER |
US20200390472A1 (en) * | 2019-02-27 | 2020-12-17 | Orthopediatrics Corp. | Bone anchor with cord retention features |
US20200323562A1 (en) * | 2019-04-12 | 2020-10-15 | Orthopediatrics Corp. | Dual tether support of vertebra |
US11723691B2 (en) * | 2019-12-25 | 2023-08-15 | Apifix Ltd | Biasing device for spinal device |
FR3106968A1 (en) * | 2020-02-06 | 2021-08-13 | Hassan Razian | System for connecting at least two portions of bone |
US20220110661A1 (en) * | 2020-10-12 | 2022-04-14 | Globus Medical, Inc. | Scoliosis correction systems, methods, and instruments |
EP3991673B1 (en) * | 2020-10-29 | 2023-12-20 | Biedermann Technologies GmbH & Co. KG | Coupling device for coupling a rod to a bone anchor |
Citations (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5630817A (en) * | 1992-11-18 | 1997-05-20 | Eurosurgical | Rod attachment device for rachidian orthopaedy |
US6302888B1 (en) * | 1999-03-19 | 2001-10-16 | Interpore Cross International | Locking dovetail and self-limiting set screw assembly for a spinal stabilization member |
US20020035366A1 (en) * | 2000-09-18 | 2002-03-21 | Reto Walder | Pedicle screw for intervertebral support elements |
US20020143332A1 (en) * | 1997-05-15 | 2002-10-03 | Chih-I Lin | Clamping connector for spinal fixation systems |
US20030187433A1 (en) * | 2002-01-17 | 2003-10-02 | A-Spine Inc. | Rotary device for fixing vertebrae under treatment |
US20040122425A1 (en) * | 2002-09-12 | 2004-06-24 | Showa Ika Kohgyo Co., Ltd. | Rod fixing apparatus for vertebra connecting member |
US20040172025A1 (en) * | 2001-10-30 | 2004-09-02 | Drewry Troy D. | Flexible spinal stabilization system and method |
US6793657B2 (en) * | 2001-09-10 | 2004-09-21 | Solco Biomedical Co., Ltd. | Spine fixing apparatus |
US20050038432A1 (en) * | 2003-04-25 | 2005-02-17 | Shaolian Samuel M. | Articulating spinal fixation rod and system |
US20050240180A1 (en) * | 2001-09-03 | 2005-10-27 | Cecile Vienney | Spinal osteosynthesis system comprising a support pad |
US20050273099A1 (en) * | 2002-10-07 | 2005-12-08 | Christian Baccelli | Plate fixing system |
US20060036242A1 (en) * | 2004-08-10 | 2006-02-16 | Nilsson C M | Screw and rod fixation system |
US20060084989A1 (en) * | 2004-10-05 | 2006-04-20 | Sdgi Holdings, Inc. | Multi-axial anchor assemblies for spinal implants and methods |
US20060149233A1 (en) * | 2004-12-16 | 2006-07-06 | Richelsoph Marc E | Locking mechanism |
US20060217716A1 (en) * | 2005-03-22 | 2006-09-28 | Baker Daniel R | Spinal fixation locking mechanism |
US20060229615A1 (en) * | 2005-02-18 | 2006-10-12 | Abdou M S | Devices and methods for dynamic fixation of skeletal structure |
US20070191842A1 (en) * | 2006-01-30 | 2007-08-16 | Sdgi Holdings, Inc. | Spinal fixation devices and methods of use |
US20070213720A1 (en) * | 2006-03-08 | 2007-09-13 | Southwest Research Institute | Dynamic interbody device |
US20080086131A1 (en) * | 2006-10-06 | 2008-04-10 | Depuy Spine, Inc. | Bone screw fixation |
US20080221621A1 (en) * | 2007-02-28 | 2008-09-11 | Snyder Brian D | Tension fixation system |
US20080234737A1 (en) * | 2007-03-16 | 2008-09-25 | Zimmer Spine, Inc. | Dynamic spinal stabilization system and method of using the same |
US20080287998A1 (en) * | 2007-05-16 | 2008-11-20 | Doubler Robert L | Polyaxial bone screw |
US20080312701A1 (en) * | 2007-06-15 | 2008-12-18 | Robert Reid, Inc. | System and Method for Polyaxially Adjustable Bone Anchorage |
US20090062866A1 (en) * | 2003-06-18 | 2009-03-05 | Jackson Roger P | Polyaxial bone anchor with helical capture connection, insert and dual locking assembly |
US20090088799A1 (en) * | 2007-10-01 | 2009-04-02 | Chung-Chun Yeh | Spinal fixation device having a flexible cable and jointed components received thereon |
US20090177232A1 (en) * | 2008-01-03 | 2009-07-09 | Kiester P Douglas | Spine reconstruction rod extender |
US20090177231A1 (en) * | 2008-01-03 | 2009-07-09 | Kiester P Douglas | Spine reconstruction rod extender |
US20090198280A1 (en) * | 2007-10-24 | 2009-08-06 | Frank Spratt | Assembly for Orthopaedic Surgery |
US20090275985A1 (en) * | 2007-05-01 | 2009-11-05 | Jackson Roger P | Dynamic stabilization assembly having pre-compressed spacers with differential displacements |
US20090312804A1 (en) * | 2008-06-17 | 2009-12-17 | Thomas Gamache | Adjustable implant assembly |
US20100042155A1 (en) * | 2008-08-12 | 2010-02-18 | Lutz Biedermann | Modular system for the stabilization of the spinal column |
US20100106189A1 (en) * | 2008-10-29 | 2010-04-29 | Warsaw Orthopedic, Inc. | Anchor with two member securing mechanism for attaching an elongated member to a bone |
US7776067B2 (en) * | 2005-05-27 | 2010-08-17 | Jackson Roger P | Polyaxial bone screw with shank articulation pressure insert and method |
US20100331887A1 (en) * | 2006-01-09 | 2010-12-30 | Jackson Roger P | Longitudinal connecting member with sleeved tensioned cords |
US20110093015A1 (en) * | 2009-10-20 | 2011-04-21 | Ramsay Christopher L | Spinal implant with a flexible extension element |
US20110196430A1 (en) * | 2010-02-10 | 2011-08-11 | Walsh David A | Spinal fixation assembly with intermediate element |
US20110251644A1 (en) * | 2010-04-07 | 2011-10-13 | Zimmer Spine, Inc. | Dynamic stabilization system using polyaxial screws |
US8066744B2 (en) * | 2006-11-10 | 2011-11-29 | Warsaw Orthopedic, Inc. | Keyed crown orientation for multi-axial screws |
US20120029568A1 (en) * | 2006-01-09 | 2012-02-02 | Jackson Roger P | Spinal connecting members with radiused rigid sleeves and tensioned cords |
US8419773B2 (en) * | 2007-02-23 | 2013-04-16 | Bierdermann Technologies GmbH & Co. KG | Stabilization device for stabilizing bones of a vertebra and rod connector used therefor |
US20130184770A1 (en) * | 2010-06-10 | 2013-07-18 | Glenn R. Buttermann | Low-profile, uniplanar bone screw |
US8852239B2 (en) * | 2013-02-15 | 2014-10-07 | Roger P Jackson | Sagittal angle screw with integral shank and receiver |
US20150025579A1 (en) * | 2013-07-19 | 2015-01-22 | Lutz Biedermann | Polyaxial bone anchoring device |
US8979904B2 (en) * | 2007-05-01 | 2015-03-17 | Roger P Jackson | Connecting member with tensioned cord, low profile rigid sleeve and spacer with torsion control |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1519139A (en) * | 1974-06-18 | 1978-07-26 | Crock H V And Pericic L | L securing elongate members to structurs more especially in surgical procedures |
FR2689750B1 (en) * | 1992-04-10 | 1997-01-31 | Eurosurgical | BONE ANCHORING ELEMENT AND SPINAL OSTEOSYNTHESIS DEVICE INCORPORATING SUCH ELEMENTS. |
US5797911A (en) * | 1996-09-24 | 1998-08-25 | Sdgi Holdings, Inc. | Multi-axial bone screw assembly |
DE19848715C1 (en) | 1998-10-22 | 2000-08-24 | Aesculap Ag & Co Kg | Osteo-synthetic holding system has locking units for the holding rods of different dimensions for the holding rods to allow adjustments to the setting of the bones or fragments before final clamping |
FR2831049B1 (en) * | 2001-10-18 | 2004-08-13 | Ldr Medical | PLATE FOR OSTEOSYNTHESIS DEVICE AND PRE-ASSEMBLY METHOD |
FR2831048B1 (en) * | 2001-10-18 | 2004-09-17 | Ldr Medical | PROGRESSIVE APPROACH OSTEOSYNTHESIS DEVICE AND PRE-ASSEMBLY PROCESS |
EP2238934B1 (en) | 2001-10-23 | 2011-12-21 | Biedermann Motech GmbH | Bone fixation device and screw for such |
FR2832620B1 (en) * | 2001-11-27 | 2004-01-23 | Eurosurgical | CONNECTOR FOR VERTEBRAL ANCHORAGE SYSTEM |
FR2835174B1 (en) * | 2002-01-31 | 2004-03-19 | Materiel Orthopedique En Abreg | CONNECTOR FOR SPINAL OSTEOSYNTHESIS DEVICE, BONE ANCHOR CONNECTOR / MEMBER ASSEMBLY AND SPINAL OSTEOSYNTHESIS DEVICE USING THE SAME |
US20040015166A1 (en) * | 2002-07-22 | 2004-01-22 | Gorek Josef E. | System and method for stabilizing the spine by securing spine stabilization rods in crossed disposition |
DE10236691B4 (en) | 2002-08-09 | 2005-12-01 | Biedermann Motech Gmbh | Dynamic stabilization device for bones, in particular for vertebrae |
US7250054B2 (en) * | 2002-08-28 | 2007-07-31 | Smith & Nephew, Inc. | Systems, methods, and apparatuses for clamping and reclamping an orthopedic surgical cable |
US20040111088A1 (en) * | 2002-12-06 | 2004-06-10 | Picetti George D. | Multi-rod bone attachment member |
US7766915B2 (en) * | 2004-02-27 | 2010-08-03 | Jackson Roger P | Dynamic fixation assemblies with inner core and outer coil-like member |
US7785351B2 (en) * | 2003-08-05 | 2010-08-31 | Flexuspine, Inc. | Artificial functional spinal implant unit system and method for use |
US20050203513A1 (en) * | 2003-09-24 | 2005-09-15 | Tae-Ahn Jahng | Spinal stabilization device |
US8979900B2 (en) * | 2003-09-24 | 2015-03-17 | DePuy Synthes Products, LLC | Spinal stabilization device |
US7083622B2 (en) * | 2003-11-10 | 2006-08-01 | Simonson Peter M | Artificial facet joint and method |
US7862586B2 (en) * | 2003-11-25 | 2011-01-04 | Life Spine, Inc. | Spinal stabilization systems |
FR2863860B1 (en) * | 2003-12-17 | 2006-03-17 | Sdgi Holdings Inc | OSTEOSYNTHESIS DEVICE OF THE RACHIS. |
DE102004011685A1 (en) * | 2004-03-09 | 2005-09-29 | Biedermann Motech Gmbh | Spine supporting element, comprising spiraled grooves at outer surface and three plain areas |
US7744635B2 (en) * | 2004-06-09 | 2010-06-29 | Spinal Generations, Llc | Spinal fixation system |
US7854752B2 (en) * | 2004-08-09 | 2010-12-21 | Theken Spine, Llc | System and method for dynamic skeletal stabilization |
BRPI0419057A (en) * | 2004-09-22 | 2007-12-11 | Kyung-Woo Park | spinal fixation |
US7896906B2 (en) * | 2004-12-30 | 2011-03-01 | Depuy Spine, Inc. | Artificial facet joint |
US7935134B2 (en) * | 2004-10-20 | 2011-05-03 | Exactech, Inc. | Systems and methods for stabilization of bone structures |
US7722651B2 (en) * | 2005-10-21 | 2010-05-25 | Depuy Spine, Inc. | Adjustable bone screw assembly |
ES2309646T3 (en) | 2005-12-23 | 2008-12-16 | Biedermann Motech Gmbh | FLEXIBLE STABILIZING DEVICE FOR THE DYNAMIC STABILIZATION OF BONES OR VERTEBRAS. |
DE602005012980D1 (en) * | 2005-12-23 | 2009-04-09 | Biedermann Motech Gmbh | Device for the dynamic stabilization of bones or vertebrae |
US8858600B2 (en) * | 2006-06-08 | 2014-10-14 | Spinadyne, Inc. | Dynamic spinal stabilization device |
US7905906B2 (en) * | 2006-06-08 | 2011-03-15 | Disc Motion Technologies, Inc. | System and method for lumbar arthroplasty |
EP2079378A2 (en) * | 2006-09-18 | 2009-07-22 | Warsaw Orthopedic, Inc. | Orthopedic plate system |
US8109975B2 (en) * | 2007-01-30 | 2012-02-07 | Warsaw Orthopedic, Inc. | Collar bore configuration for dynamic spinal stabilization assembly |
US8029547B2 (en) * | 2007-01-30 | 2011-10-04 | Warsaw Orthopedic, Inc. | Dynamic spinal stabilization assembly with sliding collars |
CA2690038C (en) * | 2007-05-31 | 2012-11-27 | Roger P. Jackson | Dynamic stabilization connecting member with pre-tensioned solid core |
US20100318130A1 (en) * | 2007-12-15 | 2010-12-16 | Parlato Brian D | Flexible rod assembly for spinal fixation |
JP2011511676A (en) * | 2008-02-07 | 2011-04-14 | ケー2エム, インコーポレイテッド | Automatic expansion bone fixation device |
US9603629B2 (en) * | 2008-09-09 | 2017-03-28 | Intelligent Implant Systems Llc | Polyaxial screw assembly |
US8845690B2 (en) * | 2008-12-22 | 2014-09-30 | DePuy Synthes Products, LLC | Variable tension spine fixation rod |
-
2008
- 2008-10-08 EP EP08017644A patent/EP2174608B1/en not_active Not-in-force
- 2008-10-08 ES ES08017644T patent/ES2392362T3/en active Active
-
2009
- 2009-09-29 CN CN200910204457.3A patent/CN101716096B/en not_active Expired - Fee Related
- 2009-09-30 US US12/571,299 patent/US8795336B2/en active Active
- 2009-10-05 JP JP2009231669A patent/JP2010088887A/en not_active Ceased
- 2009-10-05 KR KR1020090094313A patent/KR20100039809A/en active IP Right Grant
- 2009-10-05 TW TW098133655A patent/TW201014562A/en unknown
-
2014
- 2014-06-26 US US14/315,684 patent/US20140379031A1/en not_active Abandoned
Patent Citations (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5630817A (en) * | 1992-11-18 | 1997-05-20 | Eurosurgical | Rod attachment device for rachidian orthopaedy |
US20020143332A1 (en) * | 1997-05-15 | 2002-10-03 | Chih-I Lin | Clamping connector for spinal fixation systems |
US6302888B1 (en) * | 1999-03-19 | 2001-10-16 | Interpore Cross International | Locking dovetail and self-limiting set screw assembly for a spinal stabilization member |
US20020035366A1 (en) * | 2000-09-18 | 2002-03-21 | Reto Walder | Pedicle screw for intervertebral support elements |
US20050240180A1 (en) * | 2001-09-03 | 2005-10-27 | Cecile Vienney | Spinal osteosynthesis system comprising a support pad |
US6793657B2 (en) * | 2001-09-10 | 2004-09-21 | Solco Biomedical Co., Ltd. | Spine fixing apparatus |
US20040172025A1 (en) * | 2001-10-30 | 2004-09-02 | Drewry Troy D. | Flexible spinal stabilization system and method |
US20030187433A1 (en) * | 2002-01-17 | 2003-10-02 | A-Spine Inc. | Rotary device for fixing vertebrae under treatment |
US20040122425A1 (en) * | 2002-09-12 | 2004-06-24 | Showa Ika Kohgyo Co., Ltd. | Rod fixing apparatus for vertebra connecting member |
US20050273099A1 (en) * | 2002-10-07 | 2005-12-08 | Christian Baccelli | Plate fixing system |
US20050038432A1 (en) * | 2003-04-25 | 2005-02-17 | Shaolian Samuel M. | Articulating spinal fixation rod and system |
US20090062866A1 (en) * | 2003-06-18 | 2009-03-05 | Jackson Roger P | Polyaxial bone anchor with helical capture connection, insert and dual locking assembly |
US20060036242A1 (en) * | 2004-08-10 | 2006-02-16 | Nilsson C M | Screw and rod fixation system |
US20060084989A1 (en) * | 2004-10-05 | 2006-04-20 | Sdgi Holdings, Inc. | Multi-axial anchor assemblies for spinal implants and methods |
US20060149233A1 (en) * | 2004-12-16 | 2006-07-06 | Richelsoph Marc E | Locking mechanism |
US20060229615A1 (en) * | 2005-02-18 | 2006-10-12 | Abdou M S | Devices and methods for dynamic fixation of skeletal structure |
US20060217716A1 (en) * | 2005-03-22 | 2006-09-28 | Baker Daniel R | Spinal fixation locking mechanism |
US7776067B2 (en) * | 2005-05-27 | 2010-08-17 | Jackson Roger P | Polyaxial bone screw with shank articulation pressure insert and method |
US20100331887A1 (en) * | 2006-01-09 | 2010-12-30 | Jackson Roger P | Longitudinal connecting member with sleeved tensioned cords |
US20120029568A1 (en) * | 2006-01-09 | 2012-02-02 | Jackson Roger P | Spinal connecting members with radiused rigid sleeves and tensioned cords |
US20070191842A1 (en) * | 2006-01-30 | 2007-08-16 | Sdgi Holdings, Inc. | Spinal fixation devices and methods of use |
US20070213720A1 (en) * | 2006-03-08 | 2007-09-13 | Southwest Research Institute | Dynamic interbody device |
US20080086131A1 (en) * | 2006-10-06 | 2008-04-10 | Depuy Spine, Inc. | Bone screw fixation |
US8066744B2 (en) * | 2006-11-10 | 2011-11-29 | Warsaw Orthopedic, Inc. | Keyed crown orientation for multi-axial screws |
US8419773B2 (en) * | 2007-02-23 | 2013-04-16 | Bierdermann Technologies GmbH & Co. KG | Stabilization device for stabilizing bones of a vertebra and rod connector used therefor |
US20080221621A1 (en) * | 2007-02-28 | 2008-09-11 | Snyder Brian D | Tension fixation system |
US20080234737A1 (en) * | 2007-03-16 | 2008-09-25 | Zimmer Spine, Inc. | Dynamic spinal stabilization system and method of using the same |
US20090275985A1 (en) * | 2007-05-01 | 2009-11-05 | Jackson Roger P | Dynamic stabilization assembly having pre-compressed spacers with differential displacements |
US8979904B2 (en) * | 2007-05-01 | 2015-03-17 | Roger P Jackson | Connecting member with tensioned cord, low profile rigid sleeve and spacer with torsion control |
US20080287998A1 (en) * | 2007-05-16 | 2008-11-20 | Doubler Robert L | Polyaxial bone screw |
US20080312701A1 (en) * | 2007-06-15 | 2008-12-18 | Robert Reid, Inc. | System and Method for Polyaxially Adjustable Bone Anchorage |
US20090088799A1 (en) * | 2007-10-01 | 2009-04-02 | Chung-Chun Yeh | Spinal fixation device having a flexible cable and jointed components received thereon |
US20090198280A1 (en) * | 2007-10-24 | 2009-08-06 | Frank Spratt | Assembly for Orthopaedic Surgery |
US20090177232A1 (en) * | 2008-01-03 | 2009-07-09 | Kiester P Douglas | Spine reconstruction rod extender |
US8366746B2 (en) * | 2008-01-03 | 2013-02-05 | Kiester P Douglas | Spine reconstruction rod extender |
US8425564B2 (en) * | 2008-01-03 | 2013-04-23 | P. Douglas Kiester | Spine reconstruction rod extender |
US20090177231A1 (en) * | 2008-01-03 | 2009-07-09 | Kiester P Douglas | Spine reconstruction rod extender |
US20090312804A1 (en) * | 2008-06-17 | 2009-12-17 | Thomas Gamache | Adjustable implant assembly |
US20100042155A1 (en) * | 2008-08-12 | 2010-02-18 | Lutz Biedermann | Modular system for the stabilization of the spinal column |
US20100106189A1 (en) * | 2008-10-29 | 2010-04-29 | Warsaw Orthopedic, Inc. | Anchor with two member securing mechanism for attaching an elongated member to a bone |
US20110093015A1 (en) * | 2009-10-20 | 2011-04-21 | Ramsay Christopher L | Spinal implant with a flexible extension element |
US20110196430A1 (en) * | 2010-02-10 | 2011-08-11 | Walsh David A | Spinal fixation assembly with intermediate element |
US20110251644A1 (en) * | 2010-04-07 | 2011-10-13 | Zimmer Spine, Inc. | Dynamic stabilization system using polyaxial screws |
US20130184770A1 (en) * | 2010-06-10 | 2013-07-18 | Glenn R. Buttermann | Low-profile, uniplanar bone screw |
US8852239B2 (en) * | 2013-02-15 | 2014-10-07 | Roger P Jackson | Sagittal angle screw with integral shank and receiver |
US20150025579A1 (en) * | 2013-07-19 | 2015-01-22 | Lutz Biedermann | Polyaxial bone anchoring device |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11234745B2 (en) | 2005-07-14 | 2022-02-01 | Roger P. Jackson | Polyaxial bone screw assembly with partially spherical screw head and twist in place pressure insert |
US10856909B2 (en) * | 2008-08-01 | 2020-12-08 | Roger P. Jackson | Bone anchor insert with rotation blocking extensions and tool forced displacement |
US11484346B2 (en) | 2008-08-01 | 2022-11-01 | Roger P. Jackson | Pivotal bone anchor assembly with tool compressed insert for closure independent locking |
US20200069337A1 (en) * | 2008-08-01 | 2020-03-05 | Roger P. Jackson | Bone anchor insert with rotation blocking extensions and tool forced displacement |
US11185349B2 (en) | 2008-08-01 | 2021-11-30 | Roger P. Jackson | Pivotal bone anchor assembly with insert tool deployment |
US11185352B2 (en) | 2009-06-15 | 2021-11-30 | Roger P. Jackson | Pivotal bone anchor assembly with internal insert positioning and arm break-off extensions above horizontal tool engagement grooves |
US10765455B2 (en) | 2009-06-15 | 2020-09-08 | Roger P. Jackson | Pivotal bone anchor twist-in-place friction fit insert with side notches |
US10856911B2 (en) * | 2009-06-15 | 2020-12-08 | Roger P. Jackson | Pivotal bone anchor assembly having insert with rotation blocking extensions and downward facing collet |
US10813672B2 (en) | 2009-06-15 | 2020-10-27 | Roger P. Jackson | Pivotal bone anchor assembly having insert with rotation blocking extensions and downward facing collet |
US10869694B2 (en) | 2009-06-15 | 2020-12-22 | Roger P. Jackson | Pivotal bone anchor assembly with independent locking by a tool engaging an insert |
US10918420B2 (en) | 2009-06-15 | 2021-02-16 | Roger P. Jackson | Pivotal bone anchor assembly with forced downward displacement of a compression insert by a tool |
US11819249B2 (en) | 2009-06-15 | 2023-11-21 | Roger P. Jackson | Pivotal bone anchor assembly having twist-in-place insert with forced interference downward displacement |
US10945768B2 (en) | 2009-06-15 | 2021-03-16 | Roger P. Jackson | Pivotal bone anchor assembly insert with upright arms and rotation blocking extensions |
US10973555B2 (en) | 2009-06-15 | 2021-04-13 | Roger P. Jackson | Medical implant receiver assembly with internal insert positioning and arm break-off extensions above horizontal tool engagement grooves |
US11109896B2 (en) | 2009-06-15 | 2021-09-07 | Roger P. Jackson | Uniplanar bone anchor assembly |
US11116548B2 (en) | 2009-06-15 | 2021-09-14 | Roger P. Jackson | Pivotal bone anchor assembly with receiver having tool engagement grooves and increased shank angulation |
US11147592B2 (en) | 2009-06-15 | 2021-10-19 | Roger P. Jackson | Pivotal bone anchor assembly configured for independent provisional locking with insert having rotation blocking extensions |
US10765456B2 (en) | 2009-06-15 | 2020-09-08 | Roger P. Jackson | Pivotal bone anchor assembly with friction fit pop-on shank |
US11779374B2 (en) | 2009-06-15 | 2023-10-10 | Roger P. Jackson | Pivotal bone anchor assembly with non-pivoting, non-rotatable retainer |
US11751917B2 (en) | 2009-06-15 | 2023-09-12 | Roger P. Jackson | Pivotal bone anchor assembly with slidably movable retaining structure |
US10813671B2 (en) | 2009-06-15 | 2020-10-27 | Roger P. Jackson | Method of assembling a bone anchor receiver assembly having an insert with rotation blocking extensions and a downward facing collet |
US11497532B2 (en) | 2009-06-15 | 2022-11-15 | Roger P. Jackson | Pivotal bone anchor system with universal shank head |
US11419636B2 (en) | 2009-06-15 | 2022-08-23 | Roger P. Jackson | Pivotal bone anchor assembly with friction fit insert having rotation blocking extensions |
US11464548B2 (en) | 2009-06-15 | 2022-10-11 | Jackson Roger P | Pivotal bone anchor assembly with receiver having vertical tool engagement groove |
US11464549B2 (en) | 2009-06-15 | 2022-10-11 | Roger P. Jackson | Pivotal bone anchor assembly with horizontal tool engagement grooves and insert with upright arms having flared outer portions |
US11471195B2 (en) | 2009-06-15 | 2022-10-18 | Roger P. Jackson | Pivotal bone anchor assembly with circumferential multi-directional increased angulation |
US20200030004A1 (en) * | 2009-06-15 | 2020-01-30 | Roger P. Jackson | Pivotal bone anchor assembly having insert with rotation blocking extensions and downward facing collet |
US10939940B2 (en) | 2010-11-02 | 2021-03-09 | Roger P. Jackson | Pivotal bone anchor assembly with pressure insert and snap on articulating retainer |
US11918256B2 (en) | 2010-11-02 | 2024-03-05 | Roger P. Jackson | Pivotal bone anchor assembly with snap on articulating retainer |
US20150025579A1 (en) * | 2013-07-19 | 2015-01-22 | Lutz Biedermann | Polyaxial bone anchoring device |
US11497533B2 (en) | 2018-11-16 | 2022-11-15 | Roger P. Jackson | Pivotal bone anchor assembly having a deployable collet insert with internal pressure ring |
US11234738B2 (en) | 2018-11-16 | 2022-02-01 | Roger P. Jackson | Pivotal bone anchor assembly having a deployable collet insert with internal pressure ring |
US11583318B2 (en) | 2018-12-21 | 2023-02-21 | Paradigm Spine, Llc | Modular spine stabilization system and associated instruments |
US11337734B2 (en) | 2019-05-22 | 2022-05-24 | Nuvasive, Inc. | Posterior spinal fixation screws |
US11571244B2 (en) | 2019-05-22 | 2023-02-07 | Nuvasive, Inc. | Posterior spinal fixation screws |
US11684395B2 (en) | 2019-05-22 | 2023-06-27 | Nuvasive, Inc. | Posterior spinal fixation screws |
Also Published As
Publication number | Publication date |
---|---|
CN101716096B (en) | 2014-08-06 |
US8795336B2 (en) | 2014-08-05 |
JP2010088887A (en) | 2010-04-22 |
ES2392362T3 (en) | 2012-12-10 |
EP2174608A1 (en) | 2010-04-14 |
US20100087865A1 (en) | 2010-04-08 |
CN101716096A (en) | 2010-06-02 |
TW201014562A (en) | 2010-04-16 |
KR20100039809A (en) | 2010-04-16 |
EP2174608B1 (en) | 2012-08-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8795336B2 (en) | Bone anchoring device and stabilization device for bone parts or vertebrae comprising such a bone anchoring device | |
US9907578B2 (en) | Bone anchoring element and stabilization device for bones, in particular for the spinal column | |
EP2153786B1 (en) | Modular system for the stabilization of the spinal column | |
EP2055251B1 (en) | Bone anchoring element | |
JP5215553B2 (en) | Flexible stabilization device for dynamic stabilization of bone or vertebra | |
US9451988B2 (en) | Rod-shaped implant in particular for stabilizing the spinal column and stabilization device including such a rod-shaped implant | |
EP1774919B1 (en) | Poly-axial screw pivotable in a single plane | |
US9655652B2 (en) | Bone anchoring device | |
JP5187897B2 (en) | Bone anchoring device and bone stabilization device | |
US7601166B2 (en) | Stabilization device for the dynamic stabilization of vertebrae or bones and rod like element for such a stabilization device | |
EP2279706A1 (en) | Bone anchoring device | |
US20080215095A1 (en) | Stabilization device for stabilizing bones of a vertebra and rod connector used therefor | |
JP2007054628A (en) | Bar-like implant element and stabilizing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BIEDERMANN MOTECH GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BIEDERMANN, LUTZ;HARMS, JURGEN;MATTHIS, WILFRIED;SIGNING DATES FROM 20091130 TO 20091201;REEL/FRAME:038989/0288 Owner name: BIEDERMANN TECHNOLOGIES GMBH & CO. KG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BIEDERMANN MOTECH GMBH & CO. KG;REEL/FRAME:038989/0337 Effective date: 20120308 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |