US20100087864A1 - Fastener assembly that fastens to polyaxial pedicle screw - Google Patents

Fastener assembly that fastens to polyaxial pedicle screw Download PDF

Info

Publication number
US20100087864A1
US20100087864A1 US12/244,781 US24478108A US2010087864A1 US 20100087864 A1 US20100087864 A1 US 20100087864A1 US 24478108 A US24478108 A US 24478108A US 2010087864 A1 US2010087864 A1 US 2010087864A1
Authority
US
United States
Prior art keywords
ring
polyaxial
connector element
fastener assembly
pedicle screw
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
Application number
US12/244,781
Inventor
Assaf Klein
Eyal Zilberberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Premia Spine Ltd
Original Assignee
Assaf Klein
Eyal Zilberberg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Assaf Klein, Eyal Zilberberg filed Critical Assaf Klein
Priority to US12/244,781 priority Critical patent/US20100087864A1/en
Priority claimed from US12/361,547 external-priority patent/US20100087867A1/en
Publication of US20100087864A1 publication Critical patent/US20100087864A1/en
Assigned to Premia Spine Ltd. reassignment Premia Spine Ltd. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IMPLIANT LTD.
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7049Connectors, not bearing on the vertebrae, for linking longitudinal elements together
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7004Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7007Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7091Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for applying, tightening or removing longitudinal element-to-bone anchor locking elements, e.g. caps, set screws, nuts or wedges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037Screws 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7043Screws or hooks combined with longitudinal elements which do not contact vertebrae with a longitudinal element fixed to one or more transverse elements which connect multiple screws or hooks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7055Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull

Abstract

A fastener assembly including an existing polyaxial pedicle screw that has been previously installed in a spinal structure, the polyaxial pedicle screw including a polyaxial head to which a prosthetic member is secured, a fastening portion fastened to the polyaxial head over the prosthetic member, and a connector element that extends from the fastening portion, the connector element being connected to another spinal structure.

Description

    FIELD OF THE INVENTION
  • This invention relates generally to polyaxial fasteners, such as a polyaxial pedicle screw assembly, and particularly to a fastener assembly that fastens to polyaxial pedicle screws that have already been installed in spinal structure.
  • BACKGROUND OF THE INVENTION
  • Polyaxial pedicle screw assemblies are well known in the art and may be used for connecting vertebrae or other spinal structure to rods in spinal surgery. For example, polyaxial pedicle screw assemblies are known that incorporate a ball joint at the connection to the rod to allow the surgeon some flexibility in placing the screws. Tightening a nut on the screw compresses the ball joint components to lock the angular position of the ball joint.
  • SUMMARY OF THE INVENTION
  • The present invention seeks to provide a fastener assembly that fastens to polyaxial pedicle screws that have already been installed in spinal structure, as is described more in detail hereinbelow. The fastener assembly of the present invention may be used to fasten different elements to the pedicle screws, such as but not limited to, fusion rods between adjoining vertebrae or crossbars and other connections from the pedicle screws to any suitable portion of the spine in the patient.
  • The present invention provides the possibility of connecting with cross connectors to fusion systems directly to the pedicle screw and not between the fusion rods as in current prior art systems.
  • There is thus provided in accordance with an embodiment of the invention a fastener assembly including an existing polyaxial pedicle screw that has been previously installed in a spinal structure, the polyaxial pedicle screw including a polyaxial head to which a prosthetic member is secured, a fastening portion fastened to the polyaxial head over the prosthetic member, and a connector element that extends from the fastening portion, the connector element being connected to another spinal structure.
  • In accordance with an embodiment of the invention the fastening portion includes a wedge ring and the connector element includes a conical ring into which the wedge ring fits, the connector element including a connecting member that extends from the conical ring, wherein the wedge ring is sized to fit over the polyaxial head and the conical ring wedges the wedge ring onto the polyaxial head.
  • Further in accordance with an embodiment of the invention the wedge ring has a conical periphery with a top surface that has a larger outer diameter than a bottom surface thereof, and the conical ring has a top surface with a larger inner diameter than a bottom surface thereof, the larger outer diameter not being greater than the larger inner diameter. A plurality of grooves may be formed in the conical periphery of the wedge ring. One or more of the grooves may be open at the top surface and closed at the bottom surface and one or more other grooves may be closed at the top surface and open at the bottom surface.
  • In accordance with another embodiment of the invention the fastening portion includes a closed ring and the connector element includes a connecting member that extends from the closed ring, and wherein the existing polyaxial pedicle screw includes a first mechanical fastener fastened to the polyaxial head, wherein the closed ring is placed over the first mechanical fastener such that the first mechanical fastener protrudes through the closed ring, and further including a second mechanical fastener that fastens to the first mechanical fastener and is tightened against the closed ring.
  • In accordance with yet another embodiment of the invention the fastening portion includes an open ring that fits over the polyaxial head and a mechanical fastener that fastens end portions of the open ring towards each other so as to clamp the open ring onto the polyaxial head, and the connector element includes a connecting member that extends from the open ring. The end portions of the open ring can be angled at an acute angle with respect to a top surface of the open ring.
  • There is also provided in accordance with an embodiment of the invention a method including fastening a fastening assembly to a polyaxial head of an existing polyaxial pedicle screw that has been previously installed in a spinal structure, a prosthetic member being secured to the polyaxial head, wherein the fastening assembly includes a fastening portion fastened to the polyaxial head over the prosthetic member and a connector element that extends from the fastening portion, and connecting the connector element to another spinal structure.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be understood and appreciated more fully from the following detailed description taken in conjunction with the drawings in which:
  • FIG. 1 is a simplified pictorial illustration of a fastener assembly, constructed and operative in accordance with an embodiment of the present invention, showing two such fastener assemblies with wedge rings and connector elements secured to polyaxial pedicle screw heads that have previously been installed in the left and right sides of vertebra;
  • FIGS. 2A and 2B are partially sectional illustrations of the wedge ring and connector element of FIG. 1;
  • FIG. 3A is an exploded illustration of the wedge ring, the connector element and a fastening tool used to secure the fastener assembly on an existing polyaxial pedicle screw, in accordance with an embodiment of the present invention;
  • FIG. 3B is a pictorial illustration of the wedge ring and connector element mounted in the fastening tool;
  • FIGS. 3C and 3D are pictorial illustrations of the fastening tool with the wedge ring and connector element placed over the existing polyaxial pedicle screw;
  • FIGS. 3E and 3F are pictorial illustrations of using the fastening tool to secure the fastening assembly of FIG. 1 on to the existing polyaxial pedicle screw;
  • FIG. 4 is a simplified pictorial illustration of a fastener assembly, constructed and operative in accordance with another embodiment of the present invention, showing two such fastener assemblies with closed rings and connector elements secured to polyaxial pedicle screw heads that have previously been installed in the left and right sides of vertebra;
  • FIG. 5 is a partially sectional illustration of the closed ring and connector element of FIG. 4;
  • FIG. 6A is a pictorial illustration of fastening a set screw of the fastener assembly of FIG. 4 on an existing polyaxial pedicle screw, in accordance with an embodiment of the present invention;
  • FIG. 6B is a pictorial illustration of placing the connector element of the fastener assembly of FIG. 4 on the set screw;
  • FIGS. 6C and 6D are pictorial illustrations of a nut of the fastener assembly of FIG. 4 mounted in a fastening tool used to secure the fastener assembly on an existing polyaxial pedicle screw, in accordance with an embodiment of the present invention;
  • FIG. 6E is a pictorial illustration of feeding a torque handle through a counter torque handle of the fastening tool;
  • FIG. 6F is a pictorial illustration of using the fastening tool to secure the fastening assembly of FIG. 4 on to the existing polyaxial pedicle screw;
  • FIG. 7 is a simplified pictorial illustration of a fastener assembly, constructed and operative in accordance with yet another embodiment of the present invention, showing two such fastener assemblies with open rings and connector elements secured to polyaxial pedicle screw heads that have previously been installed in the left and right sides of vertebra;
  • FIG. 8 is a more detailed illustration of the open ring and connector element of FIG. 7;
  • FIG. 9A is a pictorial illustration of fastening a set screw of the existing polyaxial pedicle screw while the fastener assembly of FIG. 7 is mounted on the existing polyaxial pedicle screw, in accordance with an embodiment of the present invention;
  • FIG. 9B is a pictorial illustration of a tool used to fasten the set screw of the existing polyaxial pedicle screw;
  • FIG. 9C is a pictorial illustration of aligning the fastener assembly of FIG. 7 on the existing polyaxial pedicle screw, in accordance with an embodiment of the present invention;
  • FIG. 9D is a pictorial illustration of a tool used to align the fastener assembly of FIG. 7 on the existing polyaxial pedicle screw; and
  • FIG. 9E is a pictorial illustration of tightening a set screw of the fastener assembly of FIG. 7 on the existing polyaxial pedicle screw.
  • DETAILED DESCRIPTION OF EMBODIMENTS
  • Reference is now made to FIG. 1, which illustrates a fastener assembly 10, constructed and operative in accordance with a non-limiting embodiment of the present invention.
  • Fastener assembly 10 includes one or more existing polyaxial pedicle screws 12 (in the illustrated embodiment left and right screws are shown) that have been previously installed in a spinal structure (e.g., pedicles, articular processes, etc.). The polyaxial pedicle screw 12 includes a polyaxial head 14 to which a prosthetic member 16 is secured. In the non-limiting illustrated embodiment, prosthetic member 16 are the prongs of a TOPS (total posterior spine implant) brand spinal prosthesis, commercially available from the present assignee and described in US Patent 7011685, the disclosure of which is incorporated herein by reference.
  • Reference is now made to FIGS. 2A and 2B. A set screw 22 is screwed in the female threads of polyaxial head 14 and clamps down on prosthetic member 16. A fastening portion 18 (described more in detail below) is fastened to the polyaxial head 14 over the prosthetic member 16. A connector element 20 extends from fastening portion 18. As seen in FIG. 1, connector element 20 is connected to another spinal structure (e.g., adjacent lumbar vertebra).
  • In accordance with an embodiment of the invention, fastening portion 18 includes a wedge ring 24 and connector element 20 includes a conical ring 26 into which wedge ring 24 fits. Connector element 20 includes a connecting member 28 that extends from conical ring 26, such as a rod, bar, plate and the like. Wedge ring 24 is sized to fit over polyaxial head 14 and conical ring 26 wedges wedge ring 24 onto polyaxial head 14.
  • As seen in FIG. 2B, wedge ring 24 has a conical periphery with a top surface that has a larger outer diameter than a bottom surface thereof, and conical ring 26 has a top surface with a larger inner diameter than a bottom surface thereof, the larger outer diameter of wedge ring 24 not being greater than the larger inner diameter of conical ring 26. As seen in FIG. 3A, a plurality of grooves 30 may be formed in the conical periphery of wedge ring 24. One or more of the grooves 30 may be open at the top surface and closed at the bottom surface and one or more other grooves 30 may be closed at the top surface and open at the bottom surface.
  • The fastener assemblies of the present invention may be constructed of any suitable, rigid, medically safe material, such as but not limited to, stainless steel alloy (e.g., AISI 316L), titanium or titanium alloy or chrome cobalt alloy, PEEK, shape memory alloys or polymers, and any combination thereof.
  • Reference is now made to FIGS. 3A-3F, which illustrate installing wedge ring 24 and connector element 20 on the pedicle screw 12.
  • A fastening tool 32 is used to secure the fastener assembly on the existing polyaxial pedicle screw. FIGS. 3A and 3B show wedge ring 24 and connector element 20 inserted in jaws of fastening tool 32. FIGS. 3C and 3D show fastening tool 32 with wedge ring 24 and connector element 20 placed over the existing polyaxial pedicle screw 14. The fastening tool 32 has an alignment indicator 34 that indicates the proper alignment of connector element 20 with the existing prosthetic member 16.
  • FIGS. 3E and 3F show using the fastening tool 32 to secure fastening assembly 10 on to the existing polyaxial pedicle screw 10. Handles 36 of fastening tool 32 may be squeezed so that conical ring 26 wedges wedge ring 24 onto polyaxial head 14 as described above with reference to FIGS. 2A-2B.
  • The set screw of the existing pedicle screw may be left loose or loosened somewhat during installation of the fastener assembly on the existing polyaxial pedicle screw and afterwards tightened to the recommended torque.
  • Reference is now made to FIGS. 4 and 5. In accordance with another embodiment of the invention the fastening portion of the fastening assembly includes a closed ring 40 and the connector element includes a connecting member 42 that extends from closed ring 40. The existing polyaxial pedicle screw 12 includes a first mechanical fastener 44 (such as but not limited to, an elongate set screw with a central through hole) fastened to polyaxial head 14. Closed ring 40 is placed over the first mechanical fastener 44 such that the first mechanical fastener 44 protrudes through closed ring 40. A second mechanical fastener 46 (such as but not limited to, a nut) fastens to the first mechanical fastener 44 and is tightened against closed ring 40, thereby securing the fastening portion of the fastening assembly to the existing polyaxial pedicle screw 12.
  • Reference is now made to FIGS. 6A-6F. In FIG. 6A, a tool 45 is used to screw the first mechanical fastener 44 on the polyaxial head 14 against the prosthetic member 16. In FIG. 6B, the closed ring 40 of the connector element is placed over first mechanical fastener 44 (first mechanical fastener 44 goes through the hole of the closed ring 40). The first mechanical fastener 44 may be further tightened a little at this time.
  • FIGS. 6C and 6D illustrate second mechanical fastener 46 mounted in a fastening tool (torque handle tool) 47 used to secure the fastener assembly on the existing polyaxial pedicle screw. FIG. 6E illustrates feeding the torque handle tool 47 through a counter torque handle 48. As seen in FIG. 6F, the counter torque handle 48 is used to hold the fastening assembly in proper alignment on the existing polyaxial pedicle screw 12. Torque handle tool 47 is used to tighten second mechanical fastener 46 against closed ring 40, thereby securing the fastening portion of the fastening assembly to the existing polyaxial pedicle screw 12.
  • Reference is now made to FIGS. 7 and 8. In accordance with yet another embodiment of the invention the fastening portion includes an open ring 50 that fits over the polyaxial head 14 and a mechanical fastener 52 that fastens end portions 54 of the open ring 50 towards each other so as to clamp the open ring 50 onto the polyaxial head 14. The connector element includes a connecting member 56 that extends from open ring 50. The end portions 54 of the open ring 50 can be angled at an acute angle with respect to a top surface of the open ring 50.
  • Reference is now made to FIGS. 9A-9E. In FIG. 9A, a fastening tool 58 (also shown in FIG. 9B) is used to fasten the set screw of the existing polyaxial pedicle screw while the fastener assembly of FIG. 7 is mounted on the existing polyaxial pedicle screw.
  • In FIG. 9C, a dedicated alignment tool 60 (also shown in FIG. 9D) is used to align the fastener assembly of FIG. 7 on the existing polyaxial pedicle screw 12.
  • In FIG. 9E, a tightening tool 62 is used to tighten the mechanical fastener of the fastener assembly of FIG. 7 so as to clamp the open ring 50 onto the polyaxial head 14.
  • It is appreciated that various features of the invention which are, for clarity, described in the contexts of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination.

Claims (10)

1. A fastener assembly comprising:
an existing polyaxial pedicle screw that has been previously installed in a spinal structure, said polyaxial pedicle screw comprising a polyaxial head to which a prosthetic member is secured;
a fastening portion fastened to said polyaxial head over said prosthetic member; and
a connector element that extends from said fastening portion, said connector element being connected to another spinal structure.
2. The fastener assembly according to claim 1, wherein said fastening portion comprises a wedge ring and said connector element comprises a conical ring into which said wedge ring fits, said connector element comprising a connecting member that extends from said conical ring, wherein said wedge ring is sized to fit over said polyaxial head and said conical ring wedges said wedge ring onto said polyaxial head.
3. The fastener assembly according to claim 2, wherein said wedge ring has a conical periphery with a top surface that has a larger outer diameter than a bottom surface thereof, and said conical ring has a top surface with a larger inner diameter than a bottom surface thereof, said larger outer diameter not being greater than said larger inner diameter.
4. The fastener assembly according to claim 3, wherein a plurality of grooves are formed in said conical periphery of said wedge ring.
5. The fastener assembly according to claim 4, wherein at least one of said grooves is open at the top surface and closed at the bottom surface and at least another groove is closed at the top surface and open at the bottom surface.
6. The fastener assembly according to claim 1, wherein said fastening portion comprises a closed ring and said connector element comprises a connecting member that extends from said closed ring, and wherein said existing polyaxial pedicle screw comprises a first mechanical fastener fastened to the polyaxial head, wherein said closed ring is placed over said first mechanical fastener such that said first mechanical fastener protrudes through said closed ring, and further comprising a second mechanical fastener that fastens to said first mechanical fastener and is tightened against said closed ring.
7. The fastener assembly according to claim 6, wherein said closed ring is not flush with said connecting member.
8. The fastener assembly according to claim 1, wherein said fastening portion comprises an open ring that fits over said polyaxial head and a mechanical fastener that fastens end portions of said open ring towards each other so as to clamp said open ring onto said polyaxial head, and said connector element comprises a connecting member that extends from said open ring.
9. The fastener assembly according to claim 8, wherein said end portions of said open ring are angled at an acute angle with respect to a top surface of said open ring.
10. A method comprising:
fastening a fastening assembly to a polyaxial head of an existing polyaxial pedicle screw that has been previously installed in a spinal structure, a prosthetic member being secured to said polyaxial head, wherein said fastening assembly comprises a fastening portion fastened to said polyaxial head over said prosthetic member and a connector element that extends from said fastening portion; and
connecting said connector element to another spinal structure.
US12/244,781 2008-10-03 2008-10-03 Fastener assembly that fastens to polyaxial pedicle screw Abandoned US20100087864A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/244,781 US20100087864A1 (en) 2008-10-03 2008-10-03 Fastener assembly that fastens to polyaxial pedicle screw

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/244,781 US20100087864A1 (en) 2008-10-03 2008-10-03 Fastener assembly that fastens to polyaxial pedicle screw
US12/361,547 US20100087867A1 (en) 2008-10-03 2009-01-29 Fastener assembly that fastens to pedicle screw
US13/602,434 US8709049B2 (en) 2008-10-03 2012-09-04 Fastener assembly that fastens to polyaxial pedicle screw

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/361,547 Continuation-In-Part US20100087867A1 (en) 2008-10-03 2009-01-29 Fastener assembly that fastens to pedicle screw
US13/602,434 Continuation US8709049B2 (en) 2008-10-03 2012-09-04 Fastener assembly that fastens to polyaxial pedicle screw

Publications (1)

Publication Number Publication Date
US20100087864A1 true US20100087864A1 (en) 2010-04-08

Family

ID=42076354

Family Applications (2)

Application Number Title Priority Date Filing Date
US12/244,781 Abandoned US20100087864A1 (en) 2008-10-03 2008-10-03 Fastener assembly that fastens to polyaxial pedicle screw
US13/602,434 Active US8709049B2 (en) 2008-10-03 2012-09-04 Fastener assembly that fastens to polyaxial pedicle screw

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13/602,434 Active US8709049B2 (en) 2008-10-03 2012-09-04 Fastener assembly that fastens to polyaxial pedicle screw

Country Status (1)

Country Link
US (2) US20100087864A1 (en)

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110106166A1 (en) * 2009-04-15 2011-05-05 Tom Keyer Revision connector for spinal constructs
US20120071926A1 (en) * 2010-09-16 2012-03-22 Jani Mehul R Transverse Connector
WO2012054744A2 (en) 2010-10-20 2012-04-26 Alphatec Spine, Inc. Polyaxial bone screw with lateral connector
US20130304128A1 (en) * 2012-05-09 2013-11-14 Coligne Ag Iliac connector, connector head, spinal fixation system and method of stabilizing a spine
US20140052189A1 (en) * 2012-08-15 2014-02-20 Blackstone Medical, Inc. Pivoting spinal fixation devices
US8852239B2 (en) 2013-02-15 2014-10-07 Roger P Jackson Sagittal angle screw with integral shank and receiver
US8870928B2 (en) 2002-09-06 2014-10-28 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US8894657B2 (en) 2004-02-27 2014-11-25 Roger P. Jackson Tool system for dynamic spinal implants
US8911478B2 (en) 2012-11-21 2014-12-16 Roger P. Jackson Splay control closure for open bone anchor
US8926670B2 (en) 2003-06-18 2015-01-06 Roger P. Jackson Polyaxial bone screw assembly
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
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
US8998960B2 (en) 2004-11-10 2015-04-07 Roger P. Jackson Polyaxial bone screw with helically wound capture connection
US9050139B2 (en) 2004-02-27 2015-06-09 Roger P. Jackson Orthopedic implant rod reduction tool set and method
US9055978B2 (en) 2004-02-27 2015-06-16 Roger P. Jackson Orthopedic implant rod reduction tool set and method
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
US9211150B2 (en) 2004-11-23 2015-12-15 Roger P. Jackson Spinal fixation tool set and method
US9216039B2 (en) 2004-02-27 2015-12-22 Roger P. Jackson Dynamic spinal stabilization assemblies, tool set and method
US9241739B2 (en) 2008-09-12 2016-01-26 DePuy Synthes Products, Inc. Spinal stabilizing and guiding fixation system
US9308027B2 (en) 2005-05-27 2016-04-12 Roger P Jackson Polyaxial bone screw with shank articulation pressure insert and method
US9393047B2 (en) 2009-06-15 2016-07-19 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9439683B2 (en) 2007-01-26 2016-09-13 Roger P Jackson Dynamic stabilization member with molded connection
US9451993B2 (en) 2014-01-09 2016-09-27 Roger P. Jackson Bi-radial pop-on cervical bone anchor
US9504496B2 (en) 2009-06-15 2016-11-29 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US9510862B2 (en) 2009-06-17 2016-12-06 DePuy Synthes Products, Inc. Revision connector for spinal constructs
US9566092B2 (en) 2013-10-29 2017-02-14 Roger P. Jackson Cervical bone anchor with collet retainer and outer locking sleeve
US9597119B2 (en) 2014-06-04 2017-03-21 Roger P. Jackson Polyaxial bone anchor with polymer sleeve
US9636146B2 (en) 2012-01-10 2017-05-02 Roger P. Jackson Multi-start closures for open implants
US9662143B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Dynamic fixation assemblies with inner core and outer coil-like member
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure
US9770269B1 (en) * 2011-03-01 2017-09-26 Nuvasive, Inc. Spinal Cross-connector
US9848918B2 (en) 2005-11-21 2017-12-26 DePuy Synthes Products, Inc. Polyaxial bone anchors with increased angulation
US9907574B2 (en) 2009-06-15 2018-03-06 Roger P. Jackson Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US9918745B2 (en) 2009-06-15 2018-03-20 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US10039578B2 (en) 2003-12-16 2018-08-07 DePuy Synthes Products, Inc. Methods and devices for minimally invasive spinal fixation element placement
US10039577B2 (en) 2004-11-23 2018-08-07 Roger P Jackson Bone anchor receiver with horizontal radiused tool attachment structures and parallel planar outer surfaces
US10058354B2 (en) 2013-01-28 2018-08-28 Roger P. Jackson Pivotal bone anchor assembly with frictional shank head seating surfaces
US10064658B2 (en) 2014-06-04 2018-09-04 Roger P. Jackson Polyaxial bone anchor with insert guides
US10136923B2 (en) 2007-07-20 2018-11-27 DePuy Synthes Products, Inc. Polyaxial bone fixation element
US10154859B2 (en) 2008-09-29 2018-12-18 DePuy Synthes Products, Inc. Polyaxial bottom-loading screw and rod assembly
US10299839B2 (en) 2003-12-16 2019-05-28 Medos International Sárl Percutaneous access devices and bone anchor assemblies

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081311A1 (en) * 2013-11-26 2015-06-04 Nexus Spine, L.L.C. Surgical tool for a pedicle screw

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397363A (en) * 1992-08-11 1995-03-14 Gelbard; Steven D. Spinal stabilization implant system
US20030220643A1 (en) * 2002-05-24 2003-11-27 Ferree Bret A. Devices to prevent spinal extension
US20050102028A1 (en) * 2003-11-07 2005-05-12 Uri Arnin Spinal prostheses
US20050228326A1 (en) * 2004-03-31 2005-10-13 Depuy Spine, Inc. Head-to-head connector spinal fixation system
US20060064091A1 (en) * 2004-03-31 2006-03-23 Depuy Spine, Inc. Rod attachment for head to head cross connector
US20060142759A1 (en) * 2004-12-23 2006-06-29 Impliant Ltd. Adjustable spinal prosthesis
US20060247638A1 (en) * 2005-04-29 2006-11-02 Sdgi Holdings, Inc. Composite spinal fixation systems
US20070270809A1 (en) * 2006-04-10 2007-11-22 Sdgi Holdings, Inc. Crosslink interconnection of bone attachment devices
US20080021464A1 (en) * 2006-07-19 2008-01-24 Joshua Morin System and method for a spinal implant locking assembly
US20080294194A1 (en) * 2007-05-22 2008-11-27 Marco Dagoberto Capote Spinal stabilization systems and methods
US20080312692A1 (en) * 2007-06-15 2008-12-18 Terrence Brennan Multi-level spinal stabilization system
US20090216276A1 (en) * 2005-04-07 2009-08-27 Denis Pasquet Intervertebral implant for lumbosacral joint
US7594924B2 (en) * 2005-03-03 2009-09-29 Accelerated Innovation, Llc Spinal stabilization using bone anchor seat and cross coupling with improved locking feature
US7862591B2 (en) * 2005-11-10 2011-01-04 Warsaw Orthopedic, Inc. Intervertebral prosthetic device for spinal stabilization and method of implanting same
US8057516B2 (en) * 2007-03-21 2011-11-15 Zimmer Spine, Inc. Spinal stabilization system with rigid and flexible elements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8333789B2 (en) * 2007-01-10 2012-12-18 Gmedelaware 2 Llc Facet joint replacement
CN101568308B (en) * 2006-09-26 2011-04-20 新特斯有限责任公司 Transconnector

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397363A (en) * 1992-08-11 1995-03-14 Gelbard; Steven D. Spinal stabilization implant system
US20030220643A1 (en) * 2002-05-24 2003-11-27 Ferree Bret A. Devices to prevent spinal extension
US7011685B2 (en) * 2003-11-07 2006-03-14 Impliant Ltd. Spinal prostheses
US20050102028A1 (en) * 2003-11-07 2005-05-12 Uri Arnin Spinal prostheses
US20050228326A1 (en) * 2004-03-31 2005-10-13 Depuy Spine, Inc. Head-to-head connector spinal fixation system
US20060064091A1 (en) * 2004-03-31 2006-03-23 Depuy Spine, Inc. Rod attachment for head to head cross connector
US7645294B2 (en) * 2004-03-31 2010-01-12 Depuy Spine, Inc. Head-to-head connector spinal fixation system
US20060142759A1 (en) * 2004-12-23 2006-06-29 Impliant Ltd. Adjustable spinal prosthesis
US7594924B2 (en) * 2005-03-03 2009-09-29 Accelerated Innovation, Llc Spinal stabilization using bone anchor seat and cross coupling with improved locking feature
US20090216276A1 (en) * 2005-04-07 2009-08-27 Denis Pasquet Intervertebral implant for lumbosacral joint
US20060247638A1 (en) * 2005-04-29 2006-11-02 Sdgi Holdings, Inc. Composite spinal fixation systems
US7862591B2 (en) * 2005-11-10 2011-01-04 Warsaw Orthopedic, Inc. Intervertebral prosthetic device for spinal stabilization and method of implanting same
US20070270809A1 (en) * 2006-04-10 2007-11-22 Sdgi Holdings, Inc. Crosslink interconnection of bone attachment devices
US20080021464A1 (en) * 2006-07-19 2008-01-24 Joshua Morin System and method for a spinal implant locking assembly
US8057516B2 (en) * 2007-03-21 2011-11-15 Zimmer Spine, Inc. Spinal stabilization system with rigid and flexible elements
US20080294194A1 (en) * 2007-05-22 2008-11-27 Marco Dagoberto Capote Spinal stabilization systems and methods
US20080312692A1 (en) * 2007-06-15 2008-12-18 Terrence Brennan Multi-level spinal stabilization system

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8870928B2 (en) 2002-09-06 2014-10-28 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US8936623B2 (en) 2003-06-18 2015-01-20 Roger P. Jackson Polyaxial bone screw assembly
US8926670B2 (en) 2003-06-18 2015-01-06 Roger P. Jackson Polyaxial bone screw assembly
US10299839B2 (en) 2003-12-16 2019-05-28 Medos International Sárl Percutaneous access devices and bone anchor assemblies
US10039578B2 (en) 2003-12-16 2018-08-07 DePuy Synthes Products, Inc. Methods and devices for minimally invasive spinal fixation element placement
US9662151B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Orthopedic implant rod reduction tool set and method
US9662143B2 (en) 2004-02-27 2017-05-30 Roger P Jackson Dynamic fixation assemblies with inner core and outer coil-like member
US9055978B2 (en) 2004-02-27 2015-06-16 Roger P. Jackson Orthopedic implant rod reduction tool set and method
US8894657B2 (en) 2004-02-27 2014-11-25 Roger P. Jackson Tool system for dynamic spinal implants
US9636151B2 (en) 2004-02-27 2017-05-02 Roger P Jackson Orthopedic implant rod reduction tool set and method
US9918751B2 (en) 2004-02-27 2018-03-20 Roger P. Jackson Tool system for dynamic spinal implants
US9050139B2 (en) 2004-02-27 2015-06-09 Roger P. Jackson Orthopedic implant rod reduction tool set and method
US9532815B2 (en) 2004-02-27 2017-01-03 Roger P. Jackson Spinal fixation tool set and method
US9216039B2 (en) 2004-02-27 2015-12-22 Roger P. Jackson Dynamic spinal stabilization assemblies, tool set and method
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
US9743957B2 (en) 2004-11-10 2017-08-29 Roger P. Jackson Polyaxial bone screw with shank articulation pressure insert and method
US8998960B2 (en) 2004-11-10 2015-04-07 Roger P. Jackson Polyaxial bone screw with helically wound capture connection
US9629669B2 (en) 2004-11-23 2017-04-25 Roger P. Jackson Spinal fixation tool set and method
US9211150B2 (en) 2004-11-23 2015-12-15 Roger P. Jackson Spinal fixation tool set and method
US9522021B2 (en) 2004-11-23 2016-12-20 Roger P. Jackson Polyaxial bone anchor with retainer with notch for mono-axial motion
US10039577B2 (en) 2004-11-23 2018-08-07 Roger P Jackson Bone anchor receiver with horizontal radiused tool attachment structures and parallel planar outer surfaces
US9308027B2 (en) 2005-05-27 2016-04-12 Roger P Jackson Polyaxial bone screw with shank articulation pressure insert and method
US9848918B2 (en) 2005-11-21 2017-12-26 DePuy Synthes Products, Inc. Polyaxial bone anchors with increased angulation
US9439683B2 (en) 2007-01-26 2016-09-13 Roger P Jackson Dynamic stabilization member with molded connection
US10136923B2 (en) 2007-07-20 2018-11-27 DePuy Synthes Products, Inc. Polyaxial bone fixation element
US9974571B2 (en) 2008-09-12 2018-05-22 DePuy Synthes Products, Inc. Spinal stabilizing and guiding fixation system
US9241739B2 (en) 2008-09-12 2016-01-26 DePuy Synthes Products, Inc. Spinal stabilizing and guiding fixation system
US10154859B2 (en) 2008-09-29 2018-12-18 DePuy Synthes Products, Inc. Polyaxial bottom-loading screw and rod assembly
US10105163B2 (en) 2009-04-15 2018-10-23 DePuy Synthes Products, Inc. Revision connector for spinal constructs
US20110106166A1 (en) * 2009-04-15 2011-05-05 Tom Keyer Revision connector for spinal constructs
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
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
US9907574B2 (en) 2009-06-15 2018-03-06 Roger P. Jackson Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US9918745B2 (en) 2009-06-15 2018-03-20 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US9504496B2 (en) 2009-06-15 2016-11-29 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
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
US9717534B2 (en) 2009-06-15 2017-08-01 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9393047B2 (en) 2009-06-15 2016-07-19 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9510862B2 (en) 2009-06-17 2016-12-06 DePuy Synthes Products, Inc. Revision connector for spinal constructs
US8523911B2 (en) * 2010-09-16 2013-09-03 Globus Medical, Inc. Transverse connector including locking cap with bearing surface
US20120071926A1 (en) * 2010-09-16 2012-03-22 Jani Mehul R Transverse Connector
EP2629688A4 (en) * 2010-10-20 2016-08-03 Alphatec Spine Inc Polyaxial bone screw with lateral connector
WO2012054744A2 (en) 2010-10-20 2012-04-26 Alphatec Spine, Inc. Polyaxial bone screw with lateral connector
US10136925B2 (en) * 2011-03-01 2018-11-27 Nuvasive, Inc. Spinal cross-connector
US9770269B1 (en) * 2011-03-01 2017-09-26 Nuvasive, Inc. Spinal Cross-connector
US20180014861A1 (en) * 2011-03-01 2018-01-18 Nuvasive, Inc. Spinal Cross-Connector
US9636146B2 (en) 2012-01-10 2017-05-02 Roger P. Jackson Multi-start closures for open implants
US9561058B2 (en) * 2012-05-09 2017-02-07 Coligne Ag Iliac connector, connector head, spinal fixation system and method of stabilizing a spine
US20130304128A1 (en) * 2012-05-09 2013-11-14 Coligne Ag Iliac connector, connector head, spinal fixation system and method of stabilizing a spine
US20140052189A1 (en) * 2012-08-15 2014-02-20 Blackstone Medical, Inc. Pivoting spinal fixation devices
EP2884924A4 (en) * 2012-08-15 2016-04-13 Blackstone Medical Inc Pivoting spinal fixation devices
US9510866B2 (en) * 2012-08-15 2016-12-06 Blackstone Medical, Inc. Pivoting spinal fixation devices
US9770265B2 (en) 2012-11-21 2017-09-26 Roger P. Jackson Splay control closure for open bone anchor
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
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
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

Also Published As

Publication number Publication date
US20120330363A1 (en) 2012-12-27
US8709049B2 (en) 2014-04-29

Similar Documents

Publication Publication Date Title
CA2605775C (en) Bone anchor with locking cap and method of spinal fixation
CA2664591C (en) Transconnector
JP4861422B2 (en) Adjustable occipital plate
EP1729664B1 (en) Head-to-head connector spinal fixation system
EP1405606B1 (en) Articulating toggle bolt bone screw
US8147524B2 (en) Instrumentation and methods for reducing spinal deformities
US8465530B2 (en) Locking polyaxial ball and socket fastener
US7270665B2 (en) Variable offset spinal fixation system
CN100430029C (en) Multi-axial orthopedic device and system, e.g. for spinal surgery
JP4240820B2 (en) Coupling device using a shape memory material
US9907579B2 (en) Interspinous spacer assembly
EP1928331B1 (en) Spinal fixation system having locking and unlocking devices for use with a multi-planar taper lock screw
US8066745B2 (en) Capless multiaxial screw and spinal fixation assembly and method
US7674277B2 (en) Side-loading bone anchor
US8882817B2 (en) Spinal fixation system
US5643264A (en) Iliac screw
US8353934B2 (en) Crosslink interconnection of bone attachment devices
EP2265202B1 (en) Bone fixation element with reduction tabs
US8267980B2 (en) Spinal stabilizing system
JP4584876B2 (en) Lock assembly
US5928232A (en) Spinal fixation system
AU661904B2 (en) Spinal osteosynthesis device
JP4414889B2 (en) Cross connector assembly for interconnecting a pair of orthopedic rods
AU764003B2 (en) Spinal osteosynthesis system with improved stability
US8372118B2 (en) Spinous process fixation implant

Legal Events

Date Code Title Description
AS Assignment

Owner name: PREMIA SPINE LTD., ISRAEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:IMPLIANT LTD.;REEL/FRAME:026761/0863

Effective date: 20110531

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION