US20080228230A1 - Hinged Bone Plate and Related Methods - Google Patents

Hinged Bone Plate and Related Methods Download PDF

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Publication number
US20080228230A1
US20080228230A1 US12/046,425 US4642508A US2008228230A1 US 20080228230 A1 US20080228230 A1 US 20080228230A1 US 4642508 A US4642508 A US 4642508A US 2008228230 A1 US2008228230 A1 US 2008228230A1
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Prior art keywords
plate
bone
openings
system
pair
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Abandoned
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US12/046,425
Inventor
Bret A. Ferree
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NuVasive Inc
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NuVasive Inc
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Publication date
Priority to US27915701P priority Critical
Priority to US10/108,287 priority patent/US6764489B2/en
Priority to US10/860,850 priority patent/US7341590B2/en
Application filed by NuVasive Inc filed Critical NuVasive Inc
Priority to US12/046,425 priority patent/US20080228230A1/en
Publication of US20080228230A1 publication Critical patent/US20080228230A1/en
Assigned to SPINE PARTNERS, LLC reassignment SPINE PARTNERS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FERREE, BRET A.
Assigned to NUVASIVE, INC. reassignment NUVASIVE, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SPINE PARTNERS, LLC
Application status is Abandoned legal-status Critical

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    • 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
    • A61B17/7059Cortical plates
    • 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
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8033Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • A61B17/8047Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers wherein the additional element surrounds the screw head in the plate hole
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8665Nuts
    • 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
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/8695Washers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S606/00Surgery
    • Y10S606/90Lumbar stabilizer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S606/00Surgery
    • Y10S606/901Thoracic stabilizer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S606/00Surgery
    • Y10S606/907Composed of particular material or coated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S606/00Surgery
    • Y10S606/907Composed of particular material or coated
    • Y10S606/909Bone

Abstract

A bone plate system comprising a thin plate and fasteners for securing the plate to at least two segments of bone. The plate may be hinged along the central axis, with a pair of collinear holes on each portion of the plate. Each of the holes accommodates a bolt which is screwed into the bone and secured to the plate using a nut.

Description

    CROSS REFERENCES TO RELATED APPLICATIONS
  • The present application is a division of commonly owned and co-pending U.S. patent application Ser. No. 10/860,850, filed on Jun. 3, 2004, now issued as U.S. Pat. No. 7,341,590, which is division of commonly owned and co-pending U.S. patent application Ser. No. 10/108,287 filed Mar. 27, 2002, now issued as U.S. Pat. No. 6,764,489, the complete disclosures of which are hereby incorporated herein by reference in their entireties for all purposes. Additionally, the present application claims benefit under 35 U.S.C. § 119(e) from U.S. Provisional Application Ser. No. 60/279,157, filed on Mar. 27, 2001, the entire contents of which are hereby expressly incorporated by reference into this disclosure as if set forth fully herein.
  • BACKGROUND OF THE INVENTION
  • I. Field of the Invention
  • This invention relates generally to devices for use in spinal surgery, and, in particular, to a hinged anterior thoracic/lumbar plate which is implantable within a patient for stabilization of the spine.
  • II. Description of the Related Art
  • Eighty-five percent of the population will experience low back pain at some point. Fortunately, the majority of people recover from their back pain with a combination of benign neglect, rest, exercise, medication, physical therapy, or chiropractic care. A small percent of the population will suffer chronic low back pain. The cost of treatment of patients with spinal disorders plus the patient's lost productivity is estimated at 25 to 100 billion dollars annually.
  • Seven cervical (neck), 12 thoracic, and 5 lumbar (low back) vertebrae form the normal human spine. Intervertebral discs reside between adjacent vertebra with two exceptions. First, the articulation between the first two cervical vertebrae does not contain a disc. Second, a disc lies between the last lumbar vertebra and the sacrum (a portion of the pelvis).
  • Motion between vertebrae occurs through the disc and two facet joints. The disc lies in the front or anterior portion of the spine. The facet joints lie laterally on either side of the posterior portion of the spine. The osseous-disc combination of the spine coupled with ligaments, tendons, and muscles are essential for spine function. The spine allows movement (flexation, lateral bending, and rotation), supports the body, and protects the spinal cord and nerves.
  • The disc changes with aging. As a person ages the water content of the disc falls from approximately 85 percent at birth to 70 percent in the elderly. The ratio of chondroitin sulfate to keratin sulfate decreases with age. The ratio of chondroitin 6 sulfate to chondroitin 4 sulfate increases with age. The distinction between the annulus and the nucleus decreases with age. These changes are known as disc degeneration. Generally disc degeneration is painless.
  • Premature or accelerated disc degeneration is known as degenerative disc disease. A large portion of patients suffering from chronic low back pain is thought to have this condition. As the disc degenerates, the nucleus and annulus functions are compromised. The nucleus becomes thinner and less able to handle compression loads. The annulus fibers become redundant as the nucleus shrinks. The redundant annular fibers are less effective in controlling vertebral motion. The disc pathology can result in: 1) bulging of the annulus into the spinal cord or nerves; 2) narrowing of the space between the vertebrae where the nerves exit; 3) tears of the annulus as abnormal loads are transmitted to the annulus and the annulus is subjected to excessive motion between vertebrae; and 4) disc herniation or extrusion of the nucleus through complete annular tears. Disc herniation can also cause arthritis of the facet joints, which, in turn, may cause back pain.
  • The problems created by disc degeneration, facet arthritis, and other conditions such as spondylolysis, spondylolisthesis, scoliosis, fracture, tumor, or infection are frequently treated by spinal fusion. Such problems may include pain in the back or legs, nerve injury, risk of future nerve injury, or spinal deformity. The goal of spinal fusion is to successfully “grow” two or more vertebrae together. To achieve this, bone from the patient's body (spine or iliac crest) or from cadavers is grafted between vertebrae. Alternatively, bone graft substitutes, such as hydroxyapatite and bone morphogenetic protein, may be used. The bone graft is placed between the vertebrae in the disc space and/or over the posterior elements of the vertebrae (lamina and transverse processes). The surgeon scrapes the vertebrae to create bleeding. Blood flows into the bone graft. The scraped bone, blood clot (hematoma), and the bone graft simulates a fracture. As the patient heals, the “fracture” causes the vertebrae to be fused and heal together.
  • Spinal instrumentation may be placed onto or into the spine to immobilize the vertebrae that are going to be fused. Immobilization leads to a higher fusion rate and speeds a patient's recovery by eliminating movement. The use of spinal fixation plates or rods for correction of spinal deformities and for fusion of vertebrae is well known. Typically, a rigid plate is positioned to span bones or bone segments that need to be immobilized with respect to one another. Bone screws may be used to fasten the plate to the bones. Spinal plating systems are commonly used to correct problems in the lumbar and cervical portions of the spine, and are often installed posterior or anterior to the spine.
  • One technique of treating these disorders is known as surgical arthrodesis of the spine. This can be accomplished by removing the intervertebral disk and replacing it with bone and immobilizing the spine to allow space to connect the adjoining vertebral bodies together. The stabilization of the vertebrae to allow fusion is often assisted by a surgically implanted device to hold the vertebral bodies in proper alignment and allow the bone to heal, much like placing a cast on a fractured bone. Such techniques have been effectively used to treat the above described conditions and in most cases are effective at reducing the patient's pain and preventing neurologic loss of function.
  • Several types of anterior spinal fixation devices are currently in use. One technique involves placement of screws completely through the vertebral body, called bicortical purchase. The screws are placed through a titanium plate but are not attached to the plate. This device is difficult to place, and over-penetration of the screws can result in damage to the spinal cord. The screws can back out of the plate into the surrounding tissues as they do not fix to the plate. Several newer generation devices have used a unicortical purchase of the bone, and in some fashion locking the screw to the plate to provide stability and secure the screw from backout. Problems have resulted from over rigid fixation and stress shielding, resulting in nonunion of the bony fusion, chronic micromotion during healing, resulting in stress fracture of the fixation device at either the screw to the plate resulting in screw backout, or inadequate fixation strength and resultant collapse of the graft and angulation of the spine.
  • Another technique involves formation of a medical construct using surgical rods and connectors. Such systems include a pair of rods which are placed on opposite sides of the portion of the spine which is intended to be fused. Pedicle, lateral, and oblique mounting means are used to secure the rods relative to the desired portion of the spine which will be fused by the fixation system. However, this construct extends outwardly further than a plate/screw system, potentially affecting the surrounding muscle, and causing pain to the patient.
  • Plates and screws are often placed onto the anteriolateral portion of the spine to facilitate spinal fusion. Generally, they are placed across one or two disc spaces in the treatment of fractures and tumors. Most of the present systems use screws with nuts for the posterior portion of the vertebrae. The screws with nuts are commonly called bolts by those skilled in this art. Screws, without nuts, are placed through the anterior portion of the plate. The posterior bolts are generally thought to rigidly fix the plate to the screws. Some surgeons believe that the rigid bolt/plate construct provides more spinal stability. However, while screws without nuts are easier to insert, they also are known to back out, causing potential failure of the fusion. Devices have been devised to hold the screws within the plate. It is believed that there are no systems in the marketplace which uses an all bolt construct.
  • A typical device which is used for spinal fixation is taught in U.S. Pat. No. 4,611,581. This device consists of a simple plate having a series of openings for receiving threaded portions of force transmitting members which securely lock in a part of the bone of the vertebra in which they are mounted and a threaded portion which projects outwardly from the vertebrae. The vertebra is pulled into the desired relationship with adjacent vertebrae by tightening a nut on the outwardly projecting end portion of the force transmitting member.
  • Another typical device used is shown in U.S. Pat. No. 6,306,136. This patent discloses an implant which is used particularly as an anterior cervical plate, having a solid plate consisting of two sliding parts, each of which has holes for anchoring screws in two adjacent vertebrae. The sliding parts are provided with a screw and slot for limiting the sliding travel between the parts.
  • Another vertebrae connecting plate is taught in U.S. Pat. No. 5,147,361. This plate has a small thickness, and uses set screws which are screw engaged in threaded holes within the connecting plate to prevent any loosening of the screws within the plate.
  • SUMMARY OF THE INVENTION
  • It is therefore an object of the present invention to provide a plate system for spinal surgery, which has a low profile and comfortably fits a patient's anatomy.
  • It is a further object of the present invention to provide a plate system which is easily implanted within a patient.
  • It is a further object of the present invention to provide a plate system which is easily positioned and establishes a secure connection between vertebrae.
  • It is a still further object of the present invention to provide a plate system which is easily adaptable to the lumbar/thoracic region of the spine.
  • These and other objects and advantages of the present invention will be readily apparent in the description that follows.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a lateral view of a prior art spinal plate installed in vertebrae of a spine;
  • FIG. 2 is an anterior to posterior view of the plate shown in FIG. 1;
  • FIG. 3 is an exploded lateral view of the plate and associated devices shown in FIG. 1;
  • FIG. 4 is an end view of the plate and devices of FIG. 3 in the assembled position;
  • FIG. 5 is a perspective partially assembled view of the spinal plate of the present invention along with C-rings;
  • FIG. 6 is another perspective partially assembled view of the system of FIG. 5 along with locking nuts;
  • FIG. 7 is a perspective view of the spinal plate system of FIG. 5 in its assembled position;
  • FIG. 8 is a lateral view of the plate system of the present invention with two bolts installed;
  • FIG. 9 is a lateral view of the plate system of the present invention during the installation of two C-rings;
  • FIG. 10 is a lateral view of the plate system of the present invention with the nut installed on the lower posterior bolt;
  • FIG. 11 is a lateral view of the plate system with the two posterior bolts installed;
  • FIG. 12 is a lateral view of the plate system with C-rings for the anterior bolts;
  • FIG. 13 is a lateral view of the plate system of the present invention completely installed;
  • FIG. 14 is a sectional view of the system shown in FIG. 13;
  • FIG. 15 is a fragmentary view of an anterior hole of plate of the present invention showing the beveled orientation through the plate;
  • FIG. 16 is a lateral view of the plate system having slotted holes on the anterior section of the plate;
  • FIG. 17 is a lateral view of an alternative embodiment of the plate system of the present invention;
  • FIG. 18 is a side view of the plate shown in FIG. 17 partly in phantom;
  • FIG. 19 is a cross-sectional view of the plate shown in FIG. 17;
  • FIG. 20 is a plan view of a plate of the present invention which is angled for use on a kyphotic spine;
  • FIG. 21 is a plan view of a plate of the present invention which is angled for use on a lordotic spine; and
  • FIG. 22 is a plan view of another embodiment of a spine plate according to the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Illustrative embodiments of the invention are described below. In the interest of clarity, not all features of an actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure. The hinged anterior thoracic/lumbar plate disclosed herein boasts a variety of inventive features and components that warrant patent protection, both individually and in combination.
  • Spinal plate systems using a combination of screws and bolts to attach plates to the posterior portion of vertebrae are well known and commonly used in the prior art. FIGS. 1-4 depict one such common prior art method of spinal stabilization system, comprising a spinal plate 10 placed across several vertebrae 12, 14. Plate 10 contains a series of openings 16 which are intended to receive bone anchoring hardware. Two openings 16 are positioned against vertebra 12, and two openings 16 are positioned against vertebra 14. A bone graft 18 positioned between vertebrae 12, 14 acts as a replacement for a damaged or otherwise removed vertebra. A pair of screws 20, each having a threaded section 21, are installed through openings 16 on the anterior portion of plate 10, while a pair of bolts 22 are installed through openings 16 on the posterior portion of plate 10. Each bolt 22 consists of a lower threaded section 23 and an upper threaded post 24 to which a nut 26 is affixed to secure bolt 22 in position. The threaded sections 21, 23 of screws 20 and bolts 22 are anchored in vertebrae 12, 14. When installed in the spine, bolts 22 and screws 20 converge to resist pull-out, as shown in FIG. 4. This screw and bolt combination provides increased spinal stability, as the bolts 22 rigidly affix the spinal plate 10 to the screws 20, which are much easier to insert in the procedure.
  • FIGS. 5-7 show a preferred embodiment of a hinged spinal plate system 30 of the present invention, ideally suited for use in the lumbar/thoracic portion of the spine. Plate system 30 includes a thin plate 32 having two plate elements 32 a, 32 b which are removably coupled together along a hinged section 34. Element 32 a contains generally rounded edges 35 a, 35 b, a cutaway section 35 c, and two generally circular through openings 36 positioned collinearly along element 32 a. Element 32 b contains generally rounded edges 38 a, 38 b, a cutaway section 38 c, and two generally circular through openings 40 positioned collinearly along element 32 b. Although openings 36 on plate element 32 a are shown as circular in this embodiment, and openings 40 on plate element 32 b are shown as elongated slots, openings 36, 40 may be configured in any suitable combination of circular openings and elongated slots. Cutaway sections 35 c, 38 c afford the surgeon a better view of the bone graft inserted between vertebrae, in part to insure that the bone graft is not projecting into the spinal cord or nerves. Plate 32 is preferably constructed from an implant grade titanium alloy, such as Ti-6Al-4V. Alternatively, plate 32 may be constructed from any number of suitable materials, such as stainless steel ASTM F138.
  • An opening 42 is formed along hinged section 34 of plate system 30 by a cutout section 42 a in element 32 a and a cutout section 42 b in element 32 b. Opening 42 may be used to accommodate additional hardware to increase the stability of plate system 30 against the spine. Also, opening 42 may be used if additional hardware is needed to secure the bone graft in position.
  • A series of bolts 50 are inserted through openings 36, 40 to secure plate 32 to the vertebrae. Bolts 50 contain a lower threaded portion 52 for threadedly engaging pre-drilled holes in the appropriate vertebrae of the spine, and an upper threaded portion 54 which extends through plate 32 after it has been installed in its proper position. Bolts 50 contain an unthreaded middle portion located between lower threaded portion 52 and upper threaded portion 54, as such bone-engaging screws are known to and used by those skilled in the art.
  • A series of snap or C-rings 60 are used with bolts 50 to securely fasten plate 32 in its proper position. Snap or C-rings 60 are clipped onto upper threaded portion 54 of bolts 50 after lower threaded portion 52 has been anchored within the appropriate vertebrae but before plate 32 has been fully installed. Alternatively, snap or C-rings 60 are clipped onto the middle unthreaded portion of bolt 50 in embodiments of plate system 30 utilizing such a bolt 50. Finally, a series of nuts 62 are threaded onto upper threaded portion 54 of bolts 50 to secure plate 32 in its proper position. It is contemplated that alternative embodiments of plate system 30 may employ ordinary washers in place of snap or C-rings 60.
  • The preferred method of using hinged plate system 30 is shown in FIGS. 8-13. Referring to FIG. 8, a bone graft 63 is inserted between vertebrae to serve as a replacement vertebra. After selecting a plate 32 of suitable size, two bolts 50 are affixed within the appropriate vertebrae. To accomplish this, a pair of holes are drilled into the vertebrae at a 15° anterior angulation using openings 40 as a guide. Bolts 50 are then screwed into place through plate 32 to ensure placement in the proper location. Preferably, upper bolt 50 is placed into the cephalad portion of opening 40 as shown in FIG. 8 to allow for compression.
  • It is conceivable that other fastening systems could be used to secure plate 32 to the spine. By way of example only, several two part screw systems having an outer vertebral screw and a locking inner screw are taught in a patent application entitled ANATOMIC POSTERIOR LUMBAR PLATE, filed in the name of Bret A. Ferree on the same day as this application and hereby incorporated by reference in its entirety. Such screw systems may be used in place of bolts 50 in the present invention, as these two part screws create a “bolt” as understood in relation to the present invention.
  • As shown in FIG. 9, the next step involves flipping posterior element 32 b of plate 32 upwardly away from the vertebrae. In the alternative, posterior element 32 b and/or plate 32 may be removed in its entirety. In any case, snap rings 60 are applied to upper threaded portion 54 of bolts 50 to secure them in place. As shown in FIG. 10, posterior element 32 b of plate 32 is then repositioned over the two bolts 50, by either flipping downward toward the vertebrae or by reconnecting posterior element 32 b to anterior element 32 a along hinged element 34. While compressing bone graft 63 between the vertebrae, nut 62 is then applied to upper threaded portion 54 of lower bolt 50, and securely tightened against plate 32. Preferably, the wrench used to tighten nut 62 onto lower bolt 50 is cannulated to allow insertion of a screwdriver or other suitable tool to prevent rotation of bolt 50 while nut 62 is threaded onto upper threaded portion 54 of bolt 50.
  • With continued reference to FIG. 10, a pair of holes are then drilled into the vertebrae using openings 36 on the anterior element 32 a as a guide. Bolts 50 can then be affixed into place through element 32 a (FIG. 11). As shown in FIG. 12, anterior element 32 a is then flipped upwardly or removed entirely, and snap rings 60 are secured on upper threaded portion 54 of bolts 50. Element 32 a of plate 32 can now be returned to its proper position, and nuts 62 are applied to upper threaded portion 54 of bolts 50 and tightened to completely secure plate 32 against the vertebrae, as shown in FIG. 13. Optionally, another screw 70 may be inserted through opening 42 into bone graft 63 (or a cage if one has been inserted).
  • FIG. 14 is a sectional view of a vertebra on which a hinged plate system 30 of the present invention has been installed. Bolts 50 can be seen penetrating the vertebra. The relative angularity between bolts 50 provides the force necessary to securely hold plate system 30 in the proper orientation to promote healing. In addition, hinged section 34 assists to contour plate 32 to the convexity of the vertebrae, allowing plate 32 to more effectively contact the vertebral surface.
  • It is contemplated that other modifications could be made on plate 32 in order to simplify the installation process. By way of example only, openings 40 on element 32 b may be beveled such that element 32 a can be lifted slightly while positioned on upper threaded portion 54 of bolt 50, allowing snap ring 60 to be inserted below plate 32 onto bolt 50 without substantial displacement of element 32 a (FIG. 15). FIG. 16 shows a plate 32 in which openings 40 in element 32 a are slotted toward rounded edges 35 a, 35 b such that element 32 a can be easily flipped in an upward direction.
  • An alternate embodiment of the spinal plate system of the present invention is shown in FIGS. 17-22. Referring to FIGS. 17 and 18, a spinal plate system 100 is shown mounted in position on the spinal column of a patient. A unitary plate 102 having a plurality of slots 104 a-e is fastened by a plurality of bolts 110 as previously described at vertebrae 106, 108. A bone graft 112 has been inserted between vertebrae 106, 108 to serve as a replacement vertebra. Plate 102 contains cutaway edge portions 113 a, 113 b to allow the surgeon to visualize the bone graft easily. Bolts 110, which are shown mounted through slots 104 a-d, are held in place by a plurality of snap-rings 114. Central slot 104 e located in the central region of plate 102 may be used for an additional screw or bolt through a central vertebra or bone graft. In addition, the bottom surface of plate 102 may contain a friction surface to allow better contact with the bone structures.
  • FIG. 19 shows a cross-sectional view of the plate of FIG. 17. Preferably, plate 102 has a thickness of approximately 7 mm, and is curved to allow for better contact with the vertebral surface. Anterior slots 104 a, 104 b, which each have a preferred width of approximately 7 mm, are substantially perpendicular to the upper and lower surfaces of plate 102. Posterior slots 104 c, 104 d, which each have a preferred width of approximately 7 mm, are oriented at approximately a 15° anterior angulation between the upper and lower surfaces of plate 102. The preferred length of plate 102 ranges from 60 mm to 100 mm. The preferred width of plate 102 is approximately 20 mm at its widest portion, and approximately 12 mm across cutaway sections 112 a, 112 b.
  • Plate 102 can be shaped to more easily fit the spine when used in different areas. FIG. 20 shows a plate 102 which is angled 15° in the forward (i.e. anterior) direction to compensate for kyphotic conditions, while FIG. 21 shows a plate 102 which is angled 15° in the reverse (i.e. posterior) direction to compensate for lordotic conditions. Finally, FIG. 22 depicts a shorter plate 102, which may be used in situations where longer plates are impracticable or unnecessary.
  • While the present invention has been shown and described in terms of preferred embodiments thereof, it should be understood that this invention is not limited to any particular embodiment, and that changes and modifications may be made without departing from the true spirit and scope of the invention as defined in the appended claims.

Claims (20)

1. A system for rigidly affixing a first bone segment to at least a second bone segment, comprising:
a first plate having a first pair of openings, said first plate hingedly coupled to a second plate having a second pair of openings, wherein said first and second pairs of openings are dimensioned to receive bone anchor elements; and
a plurality of bone anchor elements dimensioned to be inserted through said first and second pairs of openings to rigidly affix said first and second plates to said first and second bone segments.
2. The system of claim 1, wherein said first and second bone segments comprise first and second vertebral bodies at adjacent vertebral levels within a spine.
3. The system of claim 1, wherein said first plate includes a first hinge element, said second plate includes a second hinge element, and said first and second plates are hingedly coupled together by engaging said first hinge element with said second hinge element.
4. The system of claim 1, wherein at least one of said first pair of openings and said second pair of openings comprise elongated slots.
5. The system of claim 4, wherein said elongated slots extend along a longitudinal axis of at least one of said first and second plates.
6. The system of claim 1, wherein said second pair of openings lie at a 15° anterior angulation to the upper surface of said second plate.
7. The system of claim 1, wherein said first pair of openings extend to an outer edge of said first plate.
8. The system of claim 1, further comprising a plurality of locking devices which may be fixed in position on said bone anchor elements.
9. The system of claim 8, wherein said locking devices comprise snap rings.
10. The system of claim 1, wherein said bone anchor elements comprise a plurality of bone engaging screws, each of said screws including a lower threaded section for affixing said screw within said bone.
11. The system of claim 1, wherein at least one of the first and second plates can be hingedly rotated away from at least one of said first and second bone segments during the plate affixation process.
12. A method of affixing a first bone segment to a second bone segment, comprising:
providing a first plate having a first pair of openings hingedly coupled to a second plate having a second pair of openings; and
positioning said first and second plates against said first and second bone segments such at least one of said first pair of openings is aligned with said first bone segment and at least one of said second pair of openings is aligned with said second bone segment; and
introducing a plurality of bone anchor elements, one through each of said first and second pairs of openings to affix said first and second plates to said first and second bone segments.
13. The method of claim 12, wherein said first and second bone segments comprise first and second vertebrae at adjacent vertebral levels within the spine.
14. The method of claim 12, wherein said first plate includes a first hinge element, said second plate includes a second hinge element, and said first and second plates are hingedly coupled together by engaging said first hinge element with said second hinge element.
15. The method of claim 12, wherein said bone anchor elements comprise a plurality of bone engaging screws, each of said screws including a lower threaded section for affixing said screw within said bone.
16. The method of claim 12, wherein at least one of the first and second plates can be hingedly rotated away from at least one of said first and second bone segments during the plate affixation process.
17. A system for performing orthopedic surgery, comprising:
a first plate having a first pair of openings and a first elongated hinge element, said first plate hingedly coupled to a second plate having a second pair of openings and a second elongated hinge element, wherein said first and second pairs of openings are dimensioned to receive bone anchor elements; and
a plurality of bone anchor elements dimensioned to be inserted through said first and second pairs of openings to rigidly affix said first and second plates to said first and second bone segments.
18. The system of claim 17, wherein said first and second plates are hingedly coupled together by engaging said first elongated hinge element with said second elongated hinge element.
19. The system of claim 17, wherein said bone anchor elements comprise a plurality of bone engaging screws, each of said screws including a lower threaded section for affixing said screws within bone.
20. The system of claim 17, wherein at least one of the first and second plates can be hingedly rotated away from at least one of said first and second bone segments during the plate affixation process.
US12/046,425 2001-03-27 2008-03-11 Hinged Bone Plate and Related Methods Abandoned US20080228230A1 (en)

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US10/108,287 US6764489B2 (en) 2001-03-27 2002-03-27 Hinged anterior thoracic/lumbar plate
US10/860,850 US7341590B2 (en) 2001-03-27 2004-06-03 Hinged anterior thoracic/lumbar plate
US12/046,425 US20080228230A1 (en) 2001-03-27 2008-03-11 Hinged Bone Plate and Related Methods

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US10/860,850 Active US7341590B2 (en) 2001-03-27 2004-06-03 Hinged anterior thoracic/lumbar plate
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US10/860,850 Active US7341590B2 (en) 2001-03-27 2004-06-03 Hinged anterior thoracic/lumbar plate

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130090688A1 (en) * 2011-04-01 2013-04-11 Albert A. Montello Posterior vertebral plating system
US8668723B2 (en) 2011-07-19 2014-03-11 Neurostructures, Inc. Anterior cervical plate
US9179946B2 (en) 2010-09-13 2015-11-10 Daniel Nehls Low-profile anterior vertebral plate assemblies and methods of use
US9433404B2 (en) 2012-10-31 2016-09-06 Suture Concepts Inc. Method and apparatus for closing fissures in the annulus fibrosus
US9486250B2 (en) 2014-02-20 2016-11-08 Mastros Innovations, LLC. Lateral plate
US9615866B1 (en) 2004-10-18 2017-04-11 Nuvasive, Inc. Surgical fixation system and related methods
US9629664B2 (en) 2014-01-20 2017-04-25 Neurostructures, Inc. Anterior cervical plate
US9913666B2 (en) 2012-04-04 2018-03-13 Carl P. Giordano Plates configured to rigidly fix fragments of a pars interarticularis to one another
US9949734B2 (en) 2012-10-31 2018-04-24 Suture Concepts Inc. Method and apparatus for closing a fissure in the annulus of an intervertebral disc, and/or for effecting other anatomical repairs and/or fixations
WO2018106269A1 (en) * 2012-04-04 2018-06-14 Giordano Carl Pasquale Bone plates configured to rigidly fix fragments of a bone to one another

Families Citing this family (170)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7776068B2 (en) * 2003-10-23 2010-08-17 Trans1 Inc. Spinal motion preservation assemblies
US7938836B2 (en) * 2003-10-23 2011-05-10 Trans1, Inc. Driver assembly for simultaneous axial delivery of spinal implants
US7491236B2 (en) 2000-02-16 2009-02-17 Trans1, Inc. Dual anchor prosthetic nucleus apparatus
US7776042B2 (en) 2002-12-03 2010-08-17 Trans1 Inc. Methods and apparatus for provision of therapy to adjacent motion segments
US6899716B2 (en) * 2000-02-16 2005-05-31 Trans1, Inc. Method and apparatus for spinal augmentation
US7014633B2 (en) * 2000-02-16 2006-03-21 Trans1, Inc. Methods of performing procedures in the spine
US6558390B2 (en) 2000-02-16 2003-05-06 Axiamed, Inc. Methods and apparatus for performing therapeutic procedures in the spine
EP1578315B2 (en) 2000-02-16 2011-12-07 TRANS1, Inc. Apparatus for spinal distraction and fusion
US7601171B2 (en) * 2003-10-23 2009-10-13 Trans1 Inc. Spinal motion preservation assemblies
US7744599B2 (en) 2000-02-16 2010-06-29 Trans1 Inc. Articulating spinal implant
EP1404225A4 (en) 2001-06-04 2009-09-16 Warsaw Orthopedic Inc Anterior cervical plate system having vertebral body engaging anchors, connecting plate, and method for installation thereof
EP1404243A4 (en) * 2001-06-04 2010-05-19 Warsaw Orthopedic Inc Dynamic anterior cervical plate system having moveable segments, instrumentation, and method for installation thereof
US7186256B2 (en) * 2001-06-04 2007-03-06 Warsaw Orthopedic, Inc. Dynamic, modular, single-lock anterior cervical plate system having assembleable and movable segments
US7097645B2 (en) * 2001-06-04 2006-08-29 Sdgi Holdings, Inc. Dynamic single-lock anterior cervical plate system having non-detachably fastened and moveable segments
US7044952B2 (en) * 2001-06-06 2006-05-16 Sdgi Holdings, Inc. Dynamic multilock anterior cervical plate system having non-detachably fastened and moveable segments
US7041105B2 (en) * 2001-06-06 2006-05-09 Sdgi Holdings, Inc. Dynamic, modular, multilock anterior cervical plate system having detachably fastened assembleable and moveable segments
US7766947B2 (en) 2001-10-31 2010-08-03 Ortho Development Corporation Cervical plate for stabilizing the human spine
US6755833B1 (en) 2001-12-14 2004-06-29 Kamaljit S. Paul Bone support assembly
US7070599B2 (en) 2002-07-24 2006-07-04 Paul Kamaljit S Bone support assembly
ES2275892T3 (en) * 2002-06-24 2007-06-16 Bernhard Brinkhaus Spinal column support system.
US7615070B2 (en) * 2002-10-11 2009-11-10 Spineco, Inc. Electro-stimulation and medical delivery device
US7811312B2 (en) * 2002-12-04 2010-10-12 Morphographics, Lc Bone alignment implant and method of use
US7914561B2 (en) 2002-12-31 2011-03-29 Depuy Spine, Inc. Resilient bone plate and screw system allowing bi-directional assembly
US7175624B2 (en) * 2002-12-31 2007-02-13 Depuy Spine, Inc. Bone plate and screw system allowing bi-directional assembly
US7341591B2 (en) * 2003-01-30 2008-03-11 Depuy Spine, Inc. Anterior buttress staple
US7955355B2 (en) 2003-09-24 2011-06-07 Stryker Spine Methods and devices for improving percutaneous access in minimally invasive surgeries
KR100849292B1 (en) * 2003-03-31 2008-07-29 샤프 가부시키가이샤 Liquid crstal display and method of fabricating the same
US7909860B2 (en) 2003-09-03 2011-03-22 Synthes Usa, Llc Bone plate with captive clips
US20050049595A1 (en) 2003-09-03 2005-03-03 Suh Sean S. Track-plate carriage system
US8070785B2 (en) * 2003-09-16 2011-12-06 Spineco, Inc. Bone anchor prosthesis and system
US7967826B2 (en) 2003-10-21 2011-06-28 Theken Spine, Llc Connector transfer tool for internal structure stabilization systems
US7569061B2 (en) 2004-11-16 2009-08-04 Innovative Spinal Technologies, Inc. Off-axis anchor guidance system
US7618442B2 (en) * 2003-10-21 2009-11-17 Theken Spine, Llc Implant assembly and method for use in an internal structure stabilization system
US20050149049A1 (en) 2003-10-23 2005-07-07 Assell Robert L. Exchange system for soft tissue access pathway
US20100145462A1 (en) * 2006-10-24 2010-06-10 Trans1 Inc. Preformed membranes for use in intervertebral disc spaces
US8088147B2 (en) * 2006-10-24 2012-01-03 Trans1 Inc. Multi-membrane prosthetic nucleus
US8562649B2 (en) 2004-02-17 2013-10-22 Gmedelaware 2 Llc System and method for multiple level facet joint arthroplasty and fusion
US7507242B2 (en) 2004-06-02 2009-03-24 Facet Solutions Surgical measurement and resection framework
US7753937B2 (en) * 2003-12-10 2010-07-13 Facet Solutions Inc. Linked bilateral spinal facet implants and methods of use
US7670360B2 (en) * 2003-12-19 2010-03-02 Orthopaedic International, Inc. Low profile anterior thoracic and thoracolumbar plate
FR2865376B1 (en) * 2004-01-27 2006-03-17 Medicrea Material of vertebral osteosynthesis
US8900277B2 (en) 2004-02-26 2014-12-02 Pioneer Surgical Technology, Inc. Bone plate system
US7740649B2 (en) 2004-02-26 2010-06-22 Pioneer Surgical Technology, Inc. Bone plate system and methods
US7648520B2 (en) 2004-04-16 2010-01-19 Kyphon Sarl Pedicle screw assembly
US7618418B2 (en) * 2004-04-16 2009-11-17 Kyphon Sarl Plate system for minimally invasive support of the spine
US7524323B2 (en) * 2004-04-16 2009-04-28 Kyphon Sarl Subcutaneous support
EP1781218A2 (en) * 2004-08-09 2007-05-09 TRANS1, Inc. Prosthetic nucleus apparatus and methods
EP1799134A4 (en) * 2004-09-14 2011-03-09 Spineco Inc Implant device
WO2006034436A2 (en) 2004-09-21 2006-03-30 Stout Medical Group, L.P. Expandable support device and method of use
AU2005302633A1 (en) * 2004-10-28 2006-05-11 Axial Biotech, Inc. Apparatus and method for concave scoliosis expansion
US8066749B2 (en) * 2004-12-13 2011-11-29 Warsaw Orthopedic, Inc. Implant for stabilizing a bone graft during spinal fusion
US7789899B2 (en) 2004-12-30 2010-09-07 Warsaw Orthopedic, Inc. Bone anchorage screw with built-in hinged plate
US7811311B2 (en) * 2004-12-30 2010-10-12 Warsaw Orthopedic, Inc. Screw with deployable interlaced dual rods
US8353939B2 (en) * 2005-01-12 2013-01-15 Warsaw Orthopedic, Inc. Anchor retaining mechanisms for bone plates
US20060195089A1 (en) * 2005-02-03 2006-08-31 Lehuec Jean-Charles Spinal plating and intervertebral support systems and methods
US8333789B2 (en) 2007-01-10 2012-12-18 Gmedelaware 2 Llc Facet joint replacement
US7993373B2 (en) * 2005-02-22 2011-08-09 Hoy Robert W Polyaxial orthopedic fastening apparatus
US7500976B2 (en) * 2005-03-11 2009-03-10 Synthes Usa, Llc Translational scissor plate fixation system
GB0505505D0 (en) * 2005-03-17 2005-04-27 Dall Desmond Meiring Configurable bone fixation system
US7678113B2 (en) 2005-04-19 2010-03-16 Warsaw Orthopedic, Inc. Antero-lateral plating systems and methods for spinal stabilization
US20060242813A1 (en) * 2005-04-29 2006-11-02 Fred Molz Metal injection molding of spinal fixation systems components
US7452370B2 (en) * 2005-04-29 2008-11-18 Warsaw Orthopedic, Inc Apparatus for retaining a bone anchor in a bone plate and method for use thereof
US8070749B2 (en) 2005-05-12 2011-12-06 Stern Joseph D Revisable anterior cervical plating system
WO2006124273A2 (en) * 2005-05-12 2006-11-23 Stern Joseph D Revisable anterior cervical plating system
US8177817B2 (en) * 2005-05-18 2012-05-15 Stryker Spine System and method for orthopedic implant configuration
JP5081822B2 (en) 2005-07-14 2012-11-28 スタウト メディカル グループ,エル.ピー. Expandable support device and system
WO2007092056A1 (en) 2006-02-06 2007-08-16 Stryker Spine Rod contouring apparatus and method for percutaneous pedicle screw extension
US7914562B2 (en) * 2006-02-27 2011-03-29 Zielinski Steven C Method and apparatus for lateral reduction and fusion of the spine
US20070233108A1 (en) * 2006-03-15 2007-10-04 Stalcup Gregory C Spine fixation device
US20070276438A1 (en) * 2006-05-26 2007-11-29 Michelle Meglin Back alignment device
US8439956B2 (en) * 2006-06-09 2013-05-14 Gyrus Productions, Inc. Method of performing a decompressive craniectomy
US8172842B2 (en) * 2006-07-31 2012-05-08 Orthopaedic International, Inc. Cervical plate system having an insertable rotating element
GB0617709D0 (en) * 2006-09-08 2006-10-18 Depuy Int Ltd A bone plate for fixation to a patient's vertebrae
US7674279B2 (en) * 2006-10-13 2010-03-09 Spinal U.S.A. Bone plate
US8062341B2 (en) * 2006-10-18 2011-11-22 Globus Medical, Inc. Rotatable bone plate
US8262710B2 (en) * 2006-10-24 2012-09-11 Aesculap Implant Systems, Llc Dynamic stabilization device for anterior lower lumbar vertebral fusion
WO2008073907A2 (en) * 2006-12-08 2008-06-19 Alpinespine Llc Compliant cervical screw locking mechanism
US9039768B2 (en) 2006-12-22 2015-05-26 Medos International Sarl Composite vertebral spacers and instrument
US8034081B2 (en) 2007-02-06 2011-10-11 CollabComl, LLC Interspinous dynamic stabilization implant and method of implanting
US20080312699A1 (en) * 2007-04-11 2008-12-18 Jeffrey Johnson Recessed plate system
US8449581B2 (en) * 2007-05-07 2013-05-28 Stryker Trauma Gmbh Sliding plate with reinforced slot
WO2009006604A1 (en) 2007-07-03 2009-01-08 Pioneer Surgical Technology, Inc. Bone plate system
US8361126B2 (en) 2007-07-03 2013-01-29 Pioneer Surgical Technology, Inc. Bone plate system
US20090043341A1 (en) * 2007-08-09 2009-02-12 Aesculap, Inc. Dynamic extension plate for anterior cervical fusion and method of installation
WO2009055537A1 (en) 2007-10-23 2009-04-30 K2M, Inc. Dynamic cervical plate
DE102007058108A1 (en) * 2007-12-03 2009-06-04 Mondeal Medical Systems Gmbh Anchoring device for tooth and / or jaw regulation
WO2009078877A1 (en) * 2007-12-19 2009-06-25 Oregon Health & Science University Method and apparatus for dens fracture fixation
US7909874B2 (en) 2008-01-30 2011-03-22 Zielinski Steven C Artificial spinal disk
US8007522B2 (en) 2008-02-04 2011-08-30 Depuy Spine, Inc. Methods for correction of spinal deformities
US9247943B1 (en) 2009-02-06 2016-02-02 Kleiner Intellectual Property, Llc Devices and methods for preparing an intervertebral workspace
USD656610S1 (en) 2009-02-06 2012-03-27 Kleiner Jeffrey B Spinal distraction instrument
US8088163B1 (en) 2008-02-06 2012-01-03 Kleiner Jeffrey B Tools and methods for spinal fusion
US20090248092A1 (en) 2008-03-26 2009-10-01 Jonathan Bellas Posterior Intervertebral Disc Inserter and Expansion Techniques
US8257407B2 (en) * 2008-04-23 2012-09-04 Aryan Henry E Bone plate system and method
US8425514B2 (en) * 2008-06-25 2013-04-23 Westmark Medical, Llc. Spinal fixation device
US8167891B2 (en) * 2008-07-21 2012-05-01 Osteomed Llc System and method for fracture reduction
FR2936700B1 (en) 2008-10-02 2012-04-13 Memometal Technologies Orthopedic implant in the form of a plate to be fixed between two bone parts
USD853560S1 (en) 2008-10-09 2019-07-09 Nuvasive, Inc. Spinal implant insertion device
US20100114171A1 (en) * 2008-11-05 2010-05-06 K2M, Inc. Multi-planar spinal fixation assembly with locking element
US20100211176A1 (en) 2008-11-12 2010-08-19 Stout Medical Group, L.P. Fixation device and method
US8366748B2 (en) 2008-12-05 2013-02-05 Kleiner Jeffrey Apparatus and method of spinal implant and fusion
US9717403B2 (en) 2008-12-05 2017-08-01 Jeffrey B. Kleiner Method and apparatus for performing retro peritoneal dissection
EP2381871A4 (en) 2008-12-26 2013-03-20 Scott Spann Minimally-invasive retroperitoneal lateral approach for spinal surgery
US9526620B2 (en) 2009-03-30 2016-12-27 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
KR101683566B1 (en) * 2009-05-05 2016-12-07 신세스 게엠바하 Nail Locking Systems
US8747472B2 (en) * 2009-08-14 2014-06-10 Baxano Surgical, Inc. Spinal therapy device with fixated distraction distance
US10349980B2 (en) 2009-08-27 2019-07-16 The Foundry, Llc Method and apparatus for altering biomechanics of the shoulder
CN102639082B (en) 2009-08-27 2015-09-30 科特拉有限公司 The method and apparatus of the force in the joint redistribution
US9278004B2 (en) 2009-08-27 2016-03-08 Cotera, Inc. Method and apparatus for altering biomechanics of the articular joints
US9861408B2 (en) 2009-08-27 2018-01-09 The Foundry, Llc Method and apparatus for treating canine cruciate ligament disease
US9668868B2 (en) 2009-08-27 2017-06-06 Cotera, Inc. Apparatus and methods for treatment of patellofemoral conditions
US9186193B2 (en) 2009-09-18 2015-11-17 Spinal Surgical Strategies, Llc Fusion cage with combined biological delivery system
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US8685031B2 (en) 2009-09-18 2014-04-01 Spinal Surgical Strategies, Llc Bone graft delivery system
US8906028B2 (en) 2009-09-18 2014-12-09 Spinal Surgical Strategies, Llc Bone graft delivery device and method of using the same
EP3357459A1 (en) 2017-02-03 2018-08-08 Spinal Surgical Strategies, LLC Bone graft delivery device with positioning handle
US9629729B2 (en) 2009-09-18 2017-04-25 Spinal Surgical Strategies, Llc Biological delivery system with adaptable fusion cage interface
ES2684118T3 (en) 2010-09-20 2018-10-01 Jeffrey Kleiner Fusion cage with combined biological administration system
US9060877B2 (en) 2009-09-18 2015-06-23 Spinal Surgical Strategies, Llc Fusion cage with combined biological delivery system
US9173694B2 (en) 2009-09-18 2015-11-03 Spinal Surgical Strategies, Llc Fusion cage with combined biological delivery system
US9011494B2 (en) * 2009-09-24 2015-04-21 Warsaw Orthopedic, Inc. Composite vertebral rod system and methods of use
US20110218574A1 (en) * 2010-03-03 2011-09-08 Warsaw Orthopedic, Inc. Dynamic vertebral construct
US8864654B2 (en) 2010-04-20 2014-10-21 Jeffrey B. Kleiner Method and apparatus for performing retro peritoneal dissection
US8535380B2 (en) 2010-05-13 2013-09-17 Stout Medical Group, L.P. Fixation device and method
US10363108B2 (en) 2010-06-07 2019-07-30 Creative Surgical Solutions, Llc Surgical drape with separable elements
US8726907B2 (en) 2010-06-07 2014-05-20 Eric Strauch Surgical drape with separable elements
WO2017066518A1 (en) 2010-06-29 2017-04-20 Mighty Oak Medical, Inc. Patient-matched apparatus and methods for performing surgical procedures
EP2608747A4 (en) 2010-08-24 2015-02-11 Flexmedex Llc Support device and method for use
US20120078372A1 (en) 2010-09-23 2012-03-29 Thomas Gamache Novel implant inserter having a laterally-extending dovetail engagement feature
US20120078373A1 (en) 2010-09-23 2012-03-29 Thomas Gamache Stand alone intervertebral fusion device
US10342583B2 (en) 2010-10-01 2019-07-09 K2M, Inc. Dynamic plate with inserts
US9149286B1 (en) 2010-11-12 2015-10-06 Flexmedex, LLC Guidance tool and method for use
US10136932B2 (en) 2010-12-20 2018-11-27 Camber Spine Technologies, LLC Spinal plate and distraction/compression pin system
US20120158066A1 (en) * 2010-12-20 2012-06-21 Camber Spine Technologies, LLC Adjustable cervical plate
US9358122B2 (en) 2011-01-07 2016-06-07 K2M, Inc. Interbody spacer
JP2014529445A (en) 2011-08-23 2014-11-13 フレックスメデックス,エルエルシー Tissue removal apparatus and method
US9248028B2 (en) 2011-09-16 2016-02-02 DePuy Synthes Products, Inc. Removable, bone-securing cover plate for intervertebral fusion cage
US20130158610A1 (en) * 2011-12-16 2013-06-20 Depuy Mitek, Inc. Bone graft fixation systems and methods
US8852278B2 (en) 2011-12-22 2014-10-07 DePuy Synthes Products, LLC Lateral cage with integrated plate
US9271836B2 (en) 2012-03-06 2016-03-01 DePuy Synthes Products, Inc. Nubbed plate
US20130345813A1 (en) 2012-06-22 2013-12-26 Sheryl Frank Dual Anchor Lateral Vertebral Body Fixation Plates
JP6419694B2 (en) 2012-06-29 2018-11-07 デピュイ・シンセス・プロダクツ・インコーポレイテッド Transverse insertion spinal implant
US9468466B1 (en) 2012-08-24 2016-10-18 Cotera, Inc. Method and apparatus for altering biomechanics of the spine
US9782204B2 (en) 2012-09-28 2017-10-10 Medos International Sarl Bone anchor assemblies
US20160166296A9 (en) * 2012-10-22 2016-06-16 Globus Medical, Inc. Posterior Lumbar Plate
US10182921B2 (en) 2012-11-09 2019-01-22 DePuy Synthes Products, Inc. Interbody device with opening to allow packing graft and other biologics
WO2014159225A2 (en) 2013-03-14 2014-10-02 Baxano Surgical, Inc. Spinal implants and implantation system
US9510875B2 (en) 2013-03-14 2016-12-06 Stryker European Holdings I, Llc Systems and methods for percutaneous spinal fusion
US20140277153A1 (en) 2013-03-14 2014-09-18 DePuy Synthes Products, LLC Bone Anchor Assemblies and Methods With Improved Locking
US9724145B2 (en) 2013-03-14 2017-08-08 Medos International Sarl Bone anchor assemblies with multiple component bottom loading bone anchors
US9259247B2 (en) 2013-03-14 2016-02-16 Medos International Sarl Locking compression members for use with bone anchor assemblies and methods
US10342582B2 (en) 2013-03-14 2019-07-09 DePuy Synthes Products, Inc. Bone anchor assemblies and methods with improved locking
US9775660B2 (en) 2013-03-14 2017-10-03 DePuy Synthes Products, Inc. Bottom-loading bone anchor assemblies and methods
US9827020B2 (en) 2013-03-14 2017-11-28 Stryker European Holdings I, Llc Percutaneous spinal cross link system and method
USD723682S1 (en) 2013-05-03 2015-03-03 Spinal Surgical Strategies, Llc Bone graft delivery tool
DE102013104887A1 (en) 2013-05-13 2014-11-13 Aap Implantate Ag Osteosynthesis plate and system for osteosynthesis
CA2914005C (en) 2013-06-07 2018-01-09 George Frey Patient-matched apparatus and methods for performing surgical procedures
US9579128B2 (en) 2013-07-19 2017-02-28 K2M, Inc. Translational plate and compressor instrument
US9468479B2 (en) 2013-09-06 2016-10-18 Cardinal Health 247, Inc. Bone plate
US10376209B2 (en) 2013-09-20 2019-08-13 Innovative Surgical Solutions, Llc Neural locating method
US10449002B2 (en) 2013-09-20 2019-10-22 Innovative Surgical Solutions, Llc Method of mapping a nerve
US10376208B2 (en) 2013-09-20 2019-08-13 Innovative Surgical Solutions, Llc Nerve mapping system
USD750249S1 (en) 2014-10-20 2016-02-23 Spinal Surgical Strategies, Llc Expandable fusion cage
US10034690B2 (en) 2014-12-09 2018-07-31 John A. Heflin Spine alignment system
USD804584S1 (en) * 2015-08-20 2017-12-05 Troy Miles Chiropractic adjusting toy for kids
USD797290S1 (en) 2015-10-19 2017-09-12 Spinal Surgical Strategies, Llc Bone graft delivery tool
DE102017101882A1 (en) 2016-02-02 2017-08-03 Özlem Catikkaya Work equipment for the stabilization of bone fractures
US10321833B2 (en) 2016-10-05 2019-06-18 Innovative Surgical Solutions. Neural locating method
USD857893S1 (en) 2017-10-26 2019-08-27 Mighty Oak Medical, Inc. Cortical surgical guide
USD858765S1 (en) 2017-10-26 2019-09-03 Mighty Oak Medical, Inc. Cortical surgical guide

Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US731138A (en) * 1903-02-24 1903-06-16 William B Stearns Skylight for vessels.
US2199102A (en) * 1938-08-10 1940-04-30 Weber Knapp Co Hinge
US2940115A (en) * 1956-10-11 1960-06-14 Hansen Hans Ulrik Adjustable door hinge
US2990570A (en) * 1958-03-24 1961-07-04 Stanley Works Snap-on hinge
US3380280A (en) * 1965-09-16 1968-04-30 Mark Products Corp Van Sheet metal bending brake
US3488779A (en) * 1967-09-27 1970-01-13 Robert W Christensen Orthopedic prosthetic appliances for attachment to bone
US4448191A (en) * 1981-07-07 1984-05-15 Rodnyansky Lazar I Implantable correctant of a spinal curvature and a method for treatment of a spinal curvature
US5075927A (en) * 1990-10-22 1991-12-31 Porta Scott S Hinged mounting bracket with solid lubricant inserts
US5242443A (en) * 1991-08-15 1993-09-07 Smith & Nephew Dyonics, Inc. Percutaneous fixation of vertebrae
US5380324A (en) * 1992-05-18 1995-01-10 Pina Vertriebs Ag Implantable device for straightening and fixing vertebrae
US5443516A (en) * 1989-04-11 1995-08-22 Albrektsson; Bjoern Joint prosthesis
US5534027A (en) * 1993-06-21 1996-07-09 Zimmer, Inc. Method for providing a barrier to the advancement of wear debris in an orthopaedic implant assembly
USD376971S (en) * 1996-01-03 1996-12-31 No-pin hinge
US5681311A (en) * 1994-09-15 1997-10-28 Smith & Nephew, Inc. Osteosynthesis apparatus
US5772681A (en) * 1993-03-02 1998-06-30 Metra Aps Dilation catheter
US5840440A (en) * 1995-11-20 1998-11-24 Ovonic Battery Company, Inc. Hydrogen storage materials having a high density of non-conventional useable hydrogen storing sites
US5954722A (en) * 1997-07-29 1999-09-21 Depuy Acromed, Inc. Polyaxial locking plate
US5968047A (en) * 1996-04-05 1999-10-19 Reed; Thomas Mills Fixation devices
US6030389A (en) * 1997-08-04 2000-02-29 Spinal Concepts, Inc. System and method for stabilizing the human spine with a bone plate
US6280455B1 (en) * 1996-03-20 2001-08-28 Cardiothoracic Systems, Inc. Surgical instrument for facilitating the detachment of an artery and the like
US6280389B1 (en) * 1999-11-12 2001-08-28 Cardiac Pacemakers, Inc. Patient identification for the pacing therapy using LV-RV pressure loop
US6331179B1 (en) * 2000-01-06 2001-12-18 Spinal Concepts, Inc. System and method for stabilizing the human spine with a bone plate
US6355036B1 (en) * 1999-08-02 2002-03-12 Kyowa Precision Instruments Corp. Bone adjuster
US20020099386A1 (en) * 2001-01-19 2002-07-25 Aesculap Ag & Co. Kg Locking mechanism for a bone screw
US6432106B1 (en) * 1999-11-24 2002-08-13 Depuy Acromed, Inc. Anterior lumbar interbody fusion cage with locking plate
US6458131B1 (en) * 2000-08-07 2002-10-01 Salut, Ltd. Apparatus and method for reducing spinal deformity
US20020143336A1 (en) * 2001-02-23 2002-10-03 Hearn James P. Sternum fixation device
US6565571B1 (en) * 1998-10-19 2003-05-20 Scient'x Anterior osteosynthesis plate for lumbar vertebrae or sacral lumbar vertebra and instrument for positioning same
US6599292B1 (en) * 1998-01-05 2003-07-29 Tegementa, L.L.C. Distraction device for vertebral disc procedures and method of distracting
US6699249B2 (en) * 1999-05-14 2004-03-02 Synthes (U.S.A.) Bone fixation device with a rotation joint

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611581A (en) 1983-12-16 1986-09-16 Acromed Corporation Apparatus for straightening spinal columns
US4790297A (en) * 1987-07-24 1988-12-13 Biotechnology, Inc. Spinal fixation method and system
US5772661A (en) * 1988-06-13 1998-06-30 Michelson; Gary Karlin Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine
JPH066810Y2 (en) 1989-11-29 1994-02-23 旭光学工業株式会社 The vertebral body fixing plate
CA2034126C (en) 1991-01-14 2001-12-25 Robin Black Spinal support plates
US5486176A (en) * 1991-03-27 1996-01-23 Smith & Nephew Richards, Inc. Angled bone fixation apparatus
ES2117968T3 (en) 1991-03-27 1998-09-01 Smith & Nephew Inc Device for bone fixation.
US5584887A (en) * 1991-08-15 1996-12-17 Smith & Nephew Richards, Inc. Percutaneous screw adapter
DE9219204U1 (en) 1992-01-17 1999-12-16 Ulrich Heinrich headstock
US5359824A (en) * 1992-11-10 1994-11-01 Gs Metals Corp. Slotted bolt seat fastening device
US5423826A (en) * 1993-02-05 1995-06-13 Danek Medical, Inc. Anterior cervical plate holder/drill guide and method of use
CA2150797C (en) 1993-10-08 2011-07-05 Chaim Rogozinski Spinal treatment and long bone fixation apparatus and method
US5527312A (en) * 1994-08-19 1996-06-18 Salut, Ltd. Facet screw anchor
DE59504219D1 (en) 1995-02-17 1998-12-17 Sulzer Orthopaedie Ag Connection system for pedicle screws
FR2758971B1 (en) * 1997-01-31 1999-06-25 Albert P Alby A pedicle intervertebral link
WO1998041160A1 (en) 1997-03-17 1998-09-24 Intellect Medical Limited Cervical fixation system
FR2766353B1 (en) 1997-07-28 1999-11-26 Dimso Sa Implant, especially anterior cervical plate
WO1999021502A1 (en) * 1997-10-24 1999-05-06 Bray Robert S Jr Bone plate and bone screw guide mechanism
FR2790941B1 (en) * 1999-03-16 2001-06-08 Materiel Orthopedique En Abreg Spinal osteosynthesis instrumentation has plate and pedicle screw or a transverse connector between a vertebral rod and a pedicle screw
US6280445B1 (en) * 1999-04-16 2001-08-28 Sdgi Holdings, Inc. Multi-axial bone anchor system
WO2002054935A2 (en) * 2000-12-29 2002-07-18 Thomas James C Jr Vertebral alignment system
US20080195158A1 (en) * 2005-04-12 2008-08-14 De Villiers Malan Spinal Fusion Device

Patent Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US731138A (en) * 1903-02-24 1903-06-16 William B Stearns Skylight for vessels.
US2199102A (en) * 1938-08-10 1940-04-30 Weber Knapp Co Hinge
US2940115A (en) * 1956-10-11 1960-06-14 Hansen Hans Ulrik Adjustable door hinge
US2990570A (en) * 1958-03-24 1961-07-04 Stanley Works Snap-on hinge
US3380280A (en) * 1965-09-16 1968-04-30 Mark Products Corp Van Sheet metal bending brake
US3488779A (en) * 1967-09-27 1970-01-13 Robert W Christensen Orthopedic prosthetic appliances for attachment to bone
US4448191A (en) * 1981-07-07 1984-05-15 Rodnyansky Lazar I Implantable correctant of a spinal curvature and a method for treatment of a spinal curvature
US5443516A (en) * 1989-04-11 1995-08-22 Albrektsson; Bjoern Joint prosthesis
US5075927A (en) * 1990-10-22 1991-12-31 Porta Scott S Hinged mounting bracket with solid lubricant inserts
US5242443A (en) * 1991-08-15 1993-09-07 Smith & Nephew Dyonics, Inc. Percutaneous fixation of vertebrae
US5380324A (en) * 1992-05-18 1995-01-10 Pina Vertriebs Ag Implantable device for straightening and fixing vertebrae
US5772681A (en) * 1993-03-02 1998-06-30 Metra Aps Dilation catheter
US5534027A (en) * 1993-06-21 1996-07-09 Zimmer, Inc. Method for providing a barrier to the advancement of wear debris in an orthopaedic implant assembly
US5681311A (en) * 1994-09-15 1997-10-28 Smith & Nephew, Inc. Osteosynthesis apparatus
US5840440A (en) * 1995-11-20 1998-11-24 Ovonic Battery Company, Inc. Hydrogen storage materials having a high density of non-conventional useable hydrogen storing sites
USD376971S (en) * 1996-01-03 1996-12-31 No-pin hinge
US6280455B1 (en) * 1996-03-20 2001-08-28 Cardiothoracic Systems, Inc. Surgical instrument for facilitating the detachment of an artery and the like
US5968047A (en) * 1996-04-05 1999-10-19 Reed; Thomas Mills Fixation devices
US5954722A (en) * 1997-07-29 1999-09-21 Depuy Acromed, Inc. Polyaxial locking plate
US6030389A (en) * 1997-08-04 2000-02-29 Spinal Concepts, Inc. System and method for stabilizing the human spine with a bone plate
US6599292B1 (en) * 1998-01-05 2003-07-29 Tegementa, L.L.C. Distraction device for vertebral disc procedures and method of distracting
US6565571B1 (en) * 1998-10-19 2003-05-20 Scient'x Anterior osteosynthesis plate for lumbar vertebrae or sacral lumbar vertebra and instrument for positioning same
US6699249B2 (en) * 1999-05-14 2004-03-02 Synthes (U.S.A.) Bone fixation device with a rotation joint
US6355036B1 (en) * 1999-08-02 2002-03-12 Kyowa Precision Instruments Corp. Bone adjuster
US6280389B1 (en) * 1999-11-12 2001-08-28 Cardiac Pacemakers, Inc. Patient identification for the pacing therapy using LV-RV pressure loop
US6432106B1 (en) * 1999-11-24 2002-08-13 Depuy Acromed, Inc. Anterior lumbar interbody fusion cage with locking plate
US6331179B1 (en) * 2000-01-06 2001-12-18 Spinal Concepts, Inc. System and method for stabilizing the human spine with a bone plate
US6458131B1 (en) * 2000-08-07 2002-10-01 Salut, Ltd. Apparatus and method for reducing spinal deformity
US20020099386A1 (en) * 2001-01-19 2002-07-25 Aesculap Ag & Co. Kg Locking mechanism for a bone screw
US20020143336A1 (en) * 2001-02-23 2002-10-03 Hearn James P. Sternum fixation device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9615866B1 (en) 2004-10-18 2017-04-11 Nuvasive, Inc. Surgical fixation system and related methods
US9179946B2 (en) 2010-09-13 2015-11-10 Daniel Nehls Low-profile anterior vertebral plate assemblies and methods of use
US8845697B2 (en) * 2011-04-01 2014-09-30 DePuy Synthes Products, LLC Posterior vertebral plating system
US20130090688A1 (en) * 2011-04-01 2013-04-11 Albert A. Montello Posterior vertebral plating system
US9433443B2 (en) 2011-04-01 2016-09-06 DePuy Synthes Products, Inc. Posterior vertebral plating system
US10045799B2 (en) 2011-04-01 2018-08-14 DePuy Synthes Products, Inc. Posterior vertebral plating system
US9113964B2 (en) 2011-07-19 2015-08-25 Howmedica Osteonics Corp. Anterior cervical plate
US9918749B2 (en) 2011-07-19 2018-03-20 Howmedica Osteonics Corp. Anterior cervical plate
US9101407B2 (en) 2011-07-19 2015-08-11 Howmedica Osteonics Corp. Anterior cervical plate
US8668723B2 (en) 2011-07-19 2014-03-11 Neurostructures, Inc. Anterior cervical plate
US9913666B2 (en) 2012-04-04 2018-03-13 Carl P. Giordano Plates configured to rigidly fix fragments of a pars interarticularis to one another
WO2018106269A1 (en) * 2012-04-04 2018-06-14 Giordano Carl Pasquale Bone plates configured to rigidly fix fragments of a bone to one another
US9433404B2 (en) 2012-10-31 2016-09-06 Suture Concepts Inc. Method and apparatus for closing fissures in the annulus fibrosus
US9949734B2 (en) 2012-10-31 2018-04-24 Suture Concepts Inc. Method and apparatus for closing a fissure in the annulus of an intervertebral disc, and/or for effecting other anatomical repairs and/or fixations
US9629664B2 (en) 2014-01-20 2017-04-25 Neurostructures, Inc. Anterior cervical plate
US9775652B2 (en) 2014-02-20 2017-10-03 Mastros Innovations, Llc Lateral plate
US9486250B2 (en) 2014-02-20 2016-11-08 Mastros Innovations, LLC. Lateral plate

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US6764489B2 (en) 2004-07-20
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US7341590B2 (en) 2008-03-11
US20020151896A1 (en) 2002-10-17
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AU2002336069A1 (en) 2002-10-08
US20040225290A1 (en) 2004-11-11

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