Including Locking Mechanism Patents (Class 606/272)
  • Patent number: 10548644
    Abstract: The present application generally relates to orthopedic stabilization systems, and in particular, to systems including clamps. The clamps can be used in addition to or to replace hooks that grasp onto bone members, such as the lamina. One example of such a clamp is an in-line clamp that includes a central opening for receiving a rod member, a first opening for receiving a set screw and a second opening for receiving an elastic member therethrough. Another example of such a clamp is an off-set clamp that includes an upper plate, a bottom plate, and an opening for receiving a rod therein. The upper plate can be separated from the bottom plate to make space for an elastic member that can be secured within the plates. Tulip clamps that utilize one or more elastic members are also provided.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: February 4, 2020
    Assignee: Globus Medical, Inc.
    Inventors: Milan George, Rory Palmer
  • Patent number: 10524838
    Abstract: A pedicle screw implant construct kit, comprising at least one pedicle screw, at least one collar comprising a recess for receiving a rod, the collar configured to be coupled to a head of the pedicle screw, an elongated rod for connecting the collar to one more additional collars to couple between the pedicle screw and one or more additional screws, and a locking ring sized to be positioned over at least a distal portion of the collar to restrain relative movement of the screw head and rod by exerting radial compression force onto the collar. In some embodiments, the components of the kit are comprised of carbon reinforced composite material, optionally with no radiation blocking material. In some exemplary embodiments of the invention, the kit includes two locking rings on a collar, optionally both below the rod.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: January 7, 2020
    Assignee: Carbofix In Orthopedics LLC
    Inventors: Mordechay Beyar, Oren Globerman
  • Patent number: 10433876
    Abstract: A pedicle screw for spinal fixation having a bone fastener portion a permanent rod coupling, a breakaway portion connected to the permanent rod coupling and a temporary rod coupling. A permanent rod can be positioned in the permanent rod coupling and a temporary rod can be positioned in the temporary rod coupling and when the temporary rod is not needed the temporary rod coupling can be removed by separation at a breakaway portion.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 8, 2019
    Inventors: Hong Zhang, Daniel J. Sucato
  • Patent number: 10357289
    Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part with an accommodation space defining an opening for inserting and accommodating a head of the bone anchoring element, and a pressure element having a cap portion configured to hold the head. In an inserting position, the cap portion of the pressure element is expandable in the accommodation space of the receiving part, and a first retaining element is configured to prevent the pressure element from moving towards a first end of the receiving part. In a pre-locking position, the head is held in the cap portion of the pressure element and is pivotable in the receiving part, while the cap portion is restricted from expanding to prevent removal of the head, and where a second retaining element is configured to prevent the pressure element from moving from the pre-locking position towards the inserting position.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 23, 2019
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 10245354
    Abstract: A method for manufacturing a hollow needle-shaped body includes producing a needle-shaped body having a substrate and a projection on a first surface of the substrate, and applying a laser beam to a second surface of the substrate opposite to the first surface such that a through hole that penetrates through the substrate and the projection is formed. The substrate and the projection are comprised of crystallized polyglycolic acid.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 2, 2019
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Tomoya Sumida
  • Patent number: 10238429
    Abstract: The present invention includes a pedicle screw made with a bone fastener and a rod coupling head, the rod coupling head comprising an upper rod coupling: the lower rod coupling having a lateral rod opening adapted to receive a permanent rod; an angled bore extends into the lateral rod opening; and a permanent rod fastener in the angled bore to engage a permanent rod in the lateral rod opening; and a upper rod coupling having an upper rod opening adapted to receive a temporary rod, wherein the upper rod opening is formed to receive a temporary rod fastener; wherein the upper rod coupling is detachable from the lower rod coupling at a transition and a temporary rod is temporarily affixed into the upper rod opening during a bone realignment and a permanent rod is positioned in the lateral rod opening and engaged by the permanent rod fastener upon final bone alignment.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: March 26, 2019
    Assignee: Globus Medical, Inc.
    Inventors: Hong Zhang, Daniel Sucato
  • Patent number: 10194947
    Abstract: A system and method for a multi-axial connection of an apparatus to bone. The system may include a fastener inserted into a body and a head of the fastener held within a chamber of the body through a combination of a retention ring, a pressure cap, a rod, and a compression element. The compression element applies force to the rod which, in turn, pushed on the pressure cap. The force on the pressure cap urges it against the head of the fastener and pushed it against the retention ring. The force on the retention ring causes it to expand to the walls of the chamber. Once the ring can no longer expand within the chamber, the head of the fastener is wedged between the retention ring and the pressure cap.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: February 5, 2019
    Assignee: Blackstone Medical, Inc.
    Inventors: Michael Hammer, Stephen Termyna
  • Patent number: 10188427
    Abstract: A spinal construct is provided including a first fastener, a second fastener and a connector. Each fastener includes a first end and a second end configured for penetrating tissue. The connector has two ends. Each end of the connector includes an expandable member. The first end of each fastener is engageable to an expandable member of the connector to fix the fastener to the connector. The first and second ends of the connector are connected by a bridge. The spinal construct also includes securing members for attaching the connector to the fasteners. A method for treating a spinal disorder with the spinal construct is also provided.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: January 29, 2019
    Assignee: Warsaw Orthopeic, Inc.
    Inventors: William Alan Rezach, Jason M. May
  • Patent number: 10080594
    Abstract: A clip-on reducer tool assembly for seating a spinal fixation rod in a rod receiving implant, the tool assembly has an outer sleeve. The outer sleeve has a proximal end with a cylindrical portion having a threaded opening, a first leg extension extending therefrom to a distal end, and a second leg extension joined to the first leg extension at an intermediate location between the distal end and proximal end. The second leg extension extends from the distal end toward the proximal end to a lever end spaced from the cylindrical portion. The leg extensions at the distal end have grasping members to engage an outer surface of a rod receiving implant and a fulcrum proximally located near the intermediate location configured to enlarge the space between the leg extension at the distal end as the lever end is depressed inwardly relative to a longitudinal axis of the outer sleeve.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: September 25, 2018
    Assignee: Amendia, Inc.
    Inventors: David Brett Cain, Joshua David Gunn
  • Patent number: 9943339
    Abstract: An osseous anchorage implant comprising an attachment structure adapted to receive and be attached to at least one bar is disclosed. The implant is made up of an osseous anchor and an attachment head bearing the attachment means. The attachment head is suitably traversed by a channel that is adapted to receive the bar. The attachment head comprises a clamp that is adapted to clamp the bar against an inside support wall of the channel. The implant is further characterized by the attachment means and the support wall enabling the rotation of the bar about a first axis that is not parallel to the longitudinal axis of the bar. The clamp comprises a moving clamping face, that is adapted to contact the bar, and that is borne by a support head. The bar is enabled to be introduced into the channel from a side of the channel.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: April 17, 2018
    Assignee: LDR Medical
    Inventors: Jacques Beaurain, Joel Delecrin, Herve Chataigner
  • Patent number: 9931221
    Abstract: A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the porperties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: April 3, 2018
    Assignee: Atlas Spine, Inc.
    Inventor: Matthew G. Baynham
  • Patent number: 9924974
    Abstract: A polyaxial bone anchoring device includes an anchoring element having a shank and a head having an outer surface portion shaped as a segment of a sphere, a receiving part having a seat portion for receiving the head, and a pressure element having a head contacting surface portion having at least two circumferentially distinct projections and defining a recess for holding the head, the recess having a first region configured to receive the head and a second region defined by at least part of one of the projections and having an undersize compared to the shape of the head, such that when the head is held in the recess, the projections extend over a portion of the head with the largest outer diameter, and the head contacting surface portion corresponding to the second region is expanded from a neutral position to clamp the head by friction.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: March 27, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 9918746
    Abstract: A pedicle screw implant construct kit, comprising at least one pedicle screw, at least one collar comprising a recess for receiving a rod, the collar configured to be coupled to a head of the pedicle screw, an elongated rod for connecting the collar to one more additional collars to couple between the pedicle screw and one or more additional screws, and a locking ring sized to be positioned over at least a distal portion of the collar to restrain relative movement of the screw head and rod by exerting radial compression force onto the collar. In some embodiments, the components of the kit are comprised of carbon reinforced composite material.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: March 20, 2018
    Assignee: Carbofix In Orthopedics LLC
    Inventors: Mordechay Beyar, Oren Globerman
  • Patent number: 9895170
    Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part with an accommodation space defining an opening for inserting and accommodating a head of the bone anchoring element, and a pressure element having a cap portion configured to hold the head. In an inserting position, the cap portion of the pressure element is expandable in the accommodation space of the receiving part, and a first retaining element is configured to prevent the pressure element from moving towards a first end of the receiving part. In a pre-locking position, the head is held in the cap portion of the pressure element and is pivotable in the receiving part, while the cap portion is restricted from expanding to prevent removal of the head, and where a second retaining element is configured to prevent the pressure element from moving from the pre-locking position towards the inserting position.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: February 20, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 9848928
    Abstract: A method comprising the steps of: providing an implant support including a first portion frangibly connected to a second portion that defines an implant cavity and supports a bone fastener; connecting a surgical introducer instrument with the implant support and engaging the surgical introducer instrument with the bone fastener; percutaneously introducing the surgical introducer instrument, implant support and bone fastener assembly to a surgical site including tissue; attaching the second portion with the bone fastener to the tissue; and removing the first portion from the second portion. Systems, fasteners and instruments are disclosed.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: December 26, 2017
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Kevin Foley, Gregory C. Marik, Newton Metcalf
  • Patent number: 9827019
    Abstract: A socket rail pedicle screw includes a fixator, a spherical head screw pivotally disposed at a bottom of the fixator and a retention screw cap. The fixator has a circular sidewall and a though hole. A pair of U-shaped grooves is defined on a top portion of the circular sidewall and a pair of locating steps is internally extended from an inner wall of a bottom portion of the circular sidewall and below the U-shaped grooves. The spherical head screw includes a bolt and a pair of diametrically faced socket rails. Each socket rail is constructed by a second top wall and a corresponding second sidewall extended from the second top wall to the bottom of the head. The second top wall is vertically pressed against the first top wall, both of the first and second sidewalls are arced, and a gap is defined between the first and second sidewall.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: November 28, 2017
    Assignees: Guangdong No. 2 Provicial People's Hospital
    Inventor: Li Guitao
  • Patent number: 9788866
    Abstract: A polyaxial bone screw assembly includes a threaded shank body having an upper portion, a receiver member or head, a retaining and articulating structure, and a pressure insert disposed between the shank upper portion and a rod. The receiver has a U-shaped cradle defining a channel for receiving a spinal fixation rod and a receiver cavity. The retaining and articulating structure attaches to the shank and rotates with the shank in the cavity during positioning. The pressure insert presses upon the shank upper portion and not the retaining and articulating structure.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: October 17, 2017
    Inventor: Roger P. Jackson
  • Patent number: 9763702
    Abstract: An anchor assembly for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The anchor assembly preferably includes a bone anchor, a body with a rod-receiving channel, an insert member (preferably a bushing), and a locking cap. The anchor assembly enables in-situ assembly where the bone anchor may be secured to the patient's vertebra prior to being received within the body of the bone anchor assembly. Accordingly, the anchor assembly enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body may be snapped onto the bone anchor and a spinal rod may be inserted into the rod-receiving channel.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: September 19, 2017
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Fridolin Schlaepfer, Martin Schnider, Helmut Rutschmann
  • Patent number: 9763700
    Abstract: A polyaxial bone screw for attaching a rod to a vertebra comprises a fastener having a threaded shank and a head. A yoke has a rod receiving channel for receiving the rod. A screw support rotatably attached to the yoke has a cavity articulatingly and rotatably supporting the fastener head, a hole receiving the threaded fastener shank therethrough, and a plurality of slots for maximum screw angulation. A crown has an upper rod receiving surface, a lower surface in contact with the fastener head and a projecting surface in contact with the yoke. A biasing element between the screw support and the yoke applies biasing forces among the fastener, the crown, and the yoke to provide sufficient friction to retain the yoke in a manipulable position relative to the fastener. A set screw is supported by the yoke overcome the bias and to rigidly secure the components.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: September 19, 2017
    Assignee: SPINE WAVE, INC.
    Inventor: Zachary Jordan Gregory
  • Patent number: 9763802
    Abstract: A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 19, 2017
    Assignee: Atlas Spine, Inc.
    Inventor: Matthew G. Baynham
  • Patent number: 9561056
    Abstract: An osseous anchorage implant comprising an attachment structure adapted to receive and be attached to at least one bar, that is suitably an element of an osteosynthesis. The implant is made up of an osseous anchor and an attachment head bearing the attachment means. The attachment head is suitably traversed by a channel that is adapted to receive the bar. The attachment head comprises a clamp that is adapted to clamp the bar against an inside support wall of the channel. The implant is further characterized by the attachment means and the support wall enabling the rotation of the bar about a first axis that is not parallel to the longitudinal axis of the bar. The clamp comprises a moving clamping face, that is adapted to contact the bar, and that is borne by a support head that is articulatable at the end of the clamp via a ball and socket connection. The channel is suitably an open channel having an aperture opening onto one of the lateral faces of the attachment head, wherein the aperture bears the clamp.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 7, 2017
    Assignee: LDR Medical
    Inventors: Jacques Beaurain, Joel Delecrin, Herve Chataigner
  • Patent number: 9554829
    Abstract: Spine stabilization systems are disclosed. One spine stabilization system includes a bone screw assembly including a coupling member and a screw member received therein. The coupling member includes a pair of extension elements that form a pair of slots. The slots include bottom angled surfaces. An angled wedge member having a substantially horizontal bottom surface and an angled top surface is delivered on top of the screw member within the coupling member. A rod member can be delivered down the coupling member such that it rests on the slots and on top of the angled wedge member. A locking assembly comprising a cap member and set screw can be delivered down the coupling member to secure the rod member to the coupling member. The rod member and locking assembly components can be delivered through a single incision and at a same or similar angle as the screw member during surgery.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: January 31, 2017
    Assignee: Globus Medical, Inc.
    Inventors: Douglas Cahill, Andrew Iott, Khiem Pham, Edward Karpowicz
  • Patent number: 9445847
    Abstract: A polyaxial bone anchoring device includes an anchoring element having a shank and a head having an outer surface portion shaped as a segment of a sphere, a receiving part having a seat portion for receiving the head, and a pressure element having a head contacting surface portion having at least two circumferentially distinct projections and defining a recess for holding the head, the recess having a first region configured to receive the head and a second region defined by at least part of one of the projections and having an undersize compared to the shape of the head, such that when the head is held in the recess, the projections extend over a portion of the head with the largest outer diameter, and the head contacting surface portion corresponding to the second region is expanded from a neutral position to clamp the head by friction.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 20, 2016
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 9375236
    Abstract: In one embodiment of the present invention a system for connecting a fastener element (e.g., a pedicle screw) relative to a rod for the purposes of vertebral fixation is provided. The system may permit multi-axial movement between the fastener element and the rod. Further, the system may permit the angular relationship between the fastener element and the rod to be held in a desired orientation. For the purposes of describing and claiming the present invention, the term “rod” is intended to refer to any elongated structure. Such an elongated structure may be solid or hollow and may have any desired cross-section (e.g., circular, oval, square, rectangular). Further, for the purposes of describing and claiming the present invention, the term “interference fit” is intended to refer to physical contact between two or more components.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: June 28, 2016
    Assignee: BLACKSTONE MEDICAL, INC.
    Inventors: Michael A. Hammer, Alan Lombardo
  • Patent number: 9358051
    Abstract: This system includes a retaining housing formed by a hole intended to receive the anchoring member and a retaining portion arranged on the anchoring member; said retaining housing is arranged in a part having a degree of elastic flexibility and is delimited by a continuous wall of this part; the retaining housing, on the side of a first axial end, forms a first collar forming a continuous circular projection capable of being elastically deformed by the retaining portion arranged on the anchoring member; the wall of said part delimiting the retaining housing also forms, on a second axial end, a second collar not able to be elastically deformed by said retaining portion.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: June 7, 2016
    Assignee: MEDICREA INTERNATIONAL
    Inventors: Denys Sournac, David Ryan
  • Patent number: 9320545
    Abstract: A polyaxial bone screw assembly includes a threaded shank body having an upper portion, a receiver, a compression insert and an articulation structure made from at least two discrete pieces. The shank upper portion cooperates with the compression insert to place the retainer in frictional engagement with the receiver. The geometry of the retainer structure pieces corresponds and cooperates with the external geometry of the shank upper portion to frictionally envelope the retainer structure between the capture structure and an internal surface defining a cavity of the receiver.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 26, 2016
    Inventor: Roger P. Jackson
  • Patent number: 9271759
    Abstract: A locking pedicle screw assembly has been designed which avoids misalignment and locks into place once the cap is fully threaded into the tulip, avoiding over tightening or stripping of the threads. The locking cap includes a retaining or locking ring, positioned either at the bottom of the cap so that it locks into a groove at the bottom of the threads in the tulip or at the top of the threads in the cap, locking into a groove at the top of the tulip when the cap is fully seated. In one embodiment, an audible signal is generated when the cap locks. In another embodiment, the cap is secured to a swiveling saddle that locks the rod into place as the screw cap is tightening, but does not interfere with the locking mechanism.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: March 1, 2016
    Assignee: Institute of Musculoskeletal Science and Education, Ltd.
    Inventors: Gregory Bailey, Joel Torretti
  • Patent number: 9241738
    Abstract: The present invention is directed to a pedicle screw fixation system which can be made for either posterior cervical, thoracic, lumbar spine, or elsewhere. With this type of system a surgeon can implant a pedicle screw system utilizing the same instrument set for an open or closed procedure. The system is designed to avoid cross threading and splitting of tulip heard by use of an outer threaded tulip and reducing donut. The system also provides the ability for superior angulation for hard to reach areas that are common in spinal procedures. The system allows for a bio-absorbable part (the reduction donut) that enhances fusion in the coming months after the procedure. With the elongate tulip portion of the system the user is able to avoid the need for other cannula type instruments; the need of additional parts; the need of additional instruments which could introduce bacteria into the patient and the need for fluoroscopy. The system is completely cannulated so as to permit a HOLDING wire driven procedure.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: January 26, 2016
    Assignee: Rolix Holdings, LLC
    Inventors: Felix Quevedo, Roberto Salvat, Jr.
  • Patent number: 9144441
    Abstract: A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 29, 2015
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis, Berthold Dannecker
  • Publication number: 20150094770
    Abstract: An open implant closure structure includes a helically wound guide and advancement structure having at least two helically wound forms thereon providing a multi-start closing mechanism for use between spaced arms of a cooperating open medical implant having mating helically wound structure thereon. Illustrated structures include interlocking flange forms, v-threads, square threads, reverse angle threads and buttress threads and receivers with break-off extensions and cooperating tooling.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 2, 2015
    Inventors: Roger P. Jackson, James L. Surber
  • Publication number: 20150088204
    Abstract: An alignment rod aligns first and second vertebra screw insertion assemblies during a spinal surgical procedure. The alignment rod includes a body portion that is adapted to engage and align the first and second vertebra screw insertion assemblies during a spinal surgical procedure. The alignment rod also includes a positioning post extending from the body portion and adapted to be engaged by a positioning tool adapted to position the alignment rod relative to one of the first and second vertebra screw insertion assemblies.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Applicant: THE UNIVERSITY OF TOLEDO
    Inventor: Ashok Biyani
  • Patent number: 8961569
    Abstract: An embodiment of the invention provides for a pedicle screw system including a bone anchor, linkage rod, tulip, set screw, and detent plate. When the set screw is fully tightened against the detent plate, pluralities of ridges on opposing faces of the detent plate and set screw cooperate by providing catches to prevent unwanted loosening of the set screw, which could lead to unwanted rod slippage and instability in the orthopedic fixation unit.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 24, 2015
    Assignee: Genesys Spine
    Inventors: Kevin Kaufman, John Stokes, Robert Josey, Bernard Guiot, Joshua Kaufmann, Scott Bryant, Greg Calbert
  • Patent number: 8906068
    Abstract: A spinal fixation system (1) for use in the fixation of a spine having a securing element (18) having a biasing member (21) located on a lower portion (44) of the securing element (18); and a substantially concave surface (25) dimensioned for at least partially circumscribing a fixation rod (15); and a retaining element (22) having: a substantially concave top surface (23) dimensioned for at least partially circumscribing a fixation rod (15); an outwardly extending wing (16); a crimping portion (42), wherein the crimping portion (42) at least partially compresses when a force is exerted on the retaining element (22); and a substantially concave bottom surface (24) dimensioned for at least partially circumscribing a head (11) of a bone fixation element (9).
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: December 9, 2014
    Inventor: Bernard M. Bedor
  • Patent number: 8888827
    Abstract: The present invention is generally directed to orthopedic fixation devices that comprise a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: November 18, 2014
    Assignee: Globus Medical, Inc.
    Inventors: Michael Harper, Milan George, Katherine Manninen, John Perkins
  • Patent number: 8882817
    Abstract: A polyaxial pedicle screw includes a housing, a bone screw member, and an anvil. The bone screw member includes a head and a threaded shaft extending from the head. The head is selectively securable within the housing. The anvil is positionable within the housing adjacent to the head of the bone screw member when the anvil and the head of the bone screw member are positioned within the housing. The anvil may define one or more grooves in an outer surface of the anvil. The groove defines a flap that is flexibly attached to the anvil to enable the anvil to flex an amount sufficient to maintain the head of the bone screw in constant contact with the anvil when the bone screw member is moved relative to the anvil.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: November 11, 2014
    Assignee: K2M, Inc.
    Inventors: Scott Jones, Oheneba Boachie-Adjei, Larry McClintock, Kevin Strauss, John Carbone
  • Patent number: 8870926
    Abstract: A fastener assembly for a spinal fixation system that is particularly useful in treatment of pediatric and small-statured patients includes a fastener, an attachment member, and a locking member. The fastener has a lower portion for contacting a bone and an upper portion integral with the lower portion. The upper portion has two open channels. Each channel is configured and dimensioned to receive a portion of a longitudinal or connecting member along its circumference. The attachment member is positionable on the fastener and at least partially covers the channel that receives the longitudinal or connecting member. The locking member is operatively associated with the upper portion of the fastener and secures the attachment member and the longitudinal or connecting member to the fastener.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: October 28, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Kris G. Kumar, Balaji S. Ramamurti, Barclay R. Davis, Thomas J. Runco
  • Publication number: 20140303673
    Abstract: A locking device includes a first locking member including a first end, a second end, a central axis, an outer surface with an external thread, a coaxial bore, and an internal thread provided along at least a portion of the bore, and a second locking member including a first end, a second end, and an outer surface with an external thread. When the second locking member is positioned in the first locking member, the second locking member is movable along the central axis by rotating the second locking member. Movement of the second locking member is limited towards the first end of the first locking member by a first stop and towards the second end of the first locking member by a second stop, where at least one of the first stop or second stop is arranged in the bore of the first locking member.
    Type: Application
    Filed: February 24, 2014
    Publication date: October 9, 2014
    Applicant: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Publication number: 20140296919
    Abstract: A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw.
    Type: Application
    Filed: June 10, 2014
    Publication date: October 2, 2014
    Inventors: Brad Culbert, Scott Pool, Blair Walker, Arvin Chang, Peter P. Tran
  • Publication number: 20140257399
    Abstract: A connector assembly comprising a connector, spinal rod receiver, a washer and a compression member is provided. The connector extends between a first end and a second end configured for coupling to a bone fastener. The first end of the connector contains an upper surface and a lower splined surface configured for mating with a lower splined surface of a washer disposed between the first end of the connector and the rod receiver. The rod receiver containing a receiver body coupled to a threaded shaft. The rod receiver is configured for receiving a spinal rod and is attachable to the first end of the connector for selectively adjusting the direction of at least a portion of a spinal rod. The compression member connects the receiver with the first end of the connector for securing the spinal rod into the receiver body. Methods of use are also disclosed.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventor: William Alan Rezach
  • Patent number: 8764805
    Abstract: A stabilization assembly for stabilizing a vertebra or other bone includes: at least two rods having different diameters; an anchoring element having a shaft and a head; a receiving part for interchangeably receiving any one of the rods to connect the rod to the anchoring element, the receiving part including a rod receiving portion with a channel for receiving the rod, and a head receiving portion having an open end and being flexible to allow introduction and clamping of the head; and a locking ring configured to be arranged around the head receiving portion and to clamp the head in the head receiving portion; wherein the locking ring includes a contact surface configured to contact any one of the at least two rods at at least two distinct contact areas that are spaced apart from one another in a circumferential direction of the rod.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 1, 2014
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Berthold Dannecker
  • Patent number: 8747418
    Abstract: A trajectory guide for providing access to a target site of a living subject along a desired path comprises a baseplate including a clamp lock, a guide member at least partially contained within the baseplate and having a channel therein, a plurality of adjustable legs each including a first end and a second end, wherein the first end is coupled to the baseplate, and a leg lock coupled to each adjustable leg and moveable between an unlocked position and a locked position in order to set a desired length of the adjustable leg, wherein the adjustable legs and the guide member are structured to be adjusted to provide an infinite number of trajectories in three-dimensional space extending through the channel in the guide member toward a target.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: June 10, 2014
    Assignee: Monteris Medical Corporation
    Inventors: Salman Qureshi, Mark Grant, Genius Dacpano
  • Patent number: 8740945
    Abstract: A spinal stabilization system including an insert positionable in the channel of the housing of a poly-axial pedicle screw which allows for locking the housing of the poly-axial pedicle screw from pivotal movement through a clamping force generated by rotational engagement of a fastener with the housing while clamping a cord of a support construct in the housing of the poly-axial pedicle screw through direct contact of the fastener against the cord.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: June 3, 2014
    Assignee: Zimmer Spine, Inc.
    Inventors: Hugh D. Hestad, Daniel A. Carlson, Daniel G. Brown
  • Patent number: 8709051
    Abstract: In one embodiment of the present invention a system for connecting a fastener element (e.g., a pedicle screw) relative to a rod for the purposes of vertebral fixation is provided. The system may permit multi-axial movement between the fastener element and the rod. Further, the system may permit the angular relationship between the fastener element and the rod to be held in a desired orientation. For the purposes of describing and claiming the present invention, the term “rod” is intended to refer to any elongated structure. Such an elongated structure may be solid or hollow and may have any desired cross-section (e.g., circular, oval, square, rectangular). Further, for the purposes of describing and claiming the present invention, the term “interference fit” is intended to refer to physical contact between two or more components.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: April 29, 2014
    Assignee: Blackstone Medical, Inc.
    Inventors: Michael A. Hammer, Alan Lombardo
  • Patent number: 8690925
    Abstract: A locking device includes a first locking member including a first end, a second end, a central axis, an outer surface with an external thread, a coaxial bore, and an internal thread provided along at least a portion of the bore, and a second locking member including a first end, a second end, and an outer surface with an external thread. When the second locking member is positioned in the first locking member, the second locking member is movable along the central axis by rotating the second locking member. Movement of the second locking member is limited towards the first end of the first locking member by a first stop and towards the second end of the first locking member by a second stop, where at least one of the first stop or second stop is arranged in the bore of the first locking member.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 8, 2014
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 8636783
    Abstract: One embodiment provides a bone fastener including a collar, a fastener member, and a pin. The collar can have an upper portion with slot to receive an elongated member and a lower portion with a socket and an opening. The fastener member can have head and shank portions. The socket can receive the head portion and prevent movement of the head portion through the opening when the head portion is out of registration with the opening. The head portion and the socket can be configured to allow angulation of the fastener member within a defined range of motion within a selected plane. The head portion and the socket can define apertures which can be aligned with each other when the head portion is in the socket and which can receive the pin. One embodiment provides a generally spherical head portion with a flat.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: January 28, 2014
    Assignee: Zimmer Spine, Inc.
    Inventors: Angela Crall, Kameron Scott Ely, Bruce A. Riceman
  • Patent number: 8628558
    Abstract: A bone fixation assembly includes a plurality of bone fixation elements that each include a bone anchor configured to be implanted into underlying bone, such as a vertebra. Each bone anchor is received in an anchor seat, and the anchor seats are joined by a fixation rod so as to operatively couple and fix the position and orientation of the vertebrae relative to each other. The bone anchor is free to rotate relative to the anchor seat, and is also free to pivot in a desired direction relative to the anchor seat.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: January 14, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Dustin M. Harvey, Brian Dec, Tom Keyer
  • Patent number: 8623061
    Abstract: The present invention is directed to a pedicle screw fixation system which can be made for either posterior cervical, thoracic, lumbar spine, or elsewhere. With this type of system a surgeon can implant a pedicle screw system utilizing the same instrument set for an open or closed procedure. The system is designed to avoid cross threading and splitting of tulip heard by use of an outer threaded tulip and reducing donut. The system also provides the ability for superior angulation for hard to reach areas that are common in spinal procedures. The system allows for a bio-absorbable part (the reduction donut) that enhances fusion in the coming months after the procedure. With the elongate tulip portion of the system the user is able to avoid the need for other cannula type instruments; the need of additional parts; the need of additional instruments which could introduce bacteria into the patient and the need for fluoroscopy. The system is completely cannulated so as to permit a HOLDING wire driven procedure.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: January 7, 2014
    Assignee: ROLIX Holdings, LLC
    Inventors: Felix Quevedo, Roberto Salvat, Jr.
  • Publication number: 20130331891
    Abstract: The disclosure relates to systems and methods of spinal stabilization. Embodiments include minimally invasive methods of delivering a rod having a non-circular cross-sectional profile using a wire having an accommodating non-circular cross-sectional profile to inhibit movement of the rod relative to the wire. A rod or a segment of the rod having a non-circular cross-sectional profile may be aligned with the wire and advanced and coupled to bone fastener assemblies which are anchored in vertebrae. The rod is then securely seated in collars of the bone fastener assemblies to stabilize the spine.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 12, 2013
    Applicant: Zimmer Spine, Inc.
    Inventors: Brian J. Bergeron, K. Scott Ely, Charles R. Forton, Jeremy J. Lemoine, Peter T. Miller
  • Patent number: 8603145
    Abstract: A poly-axial bone fastener assembly having a collar and a bone fastener can be coaxially locked to prevent poly-axial movements of the collar relative to the bone fastener while permitting the collar to rotate about an axis of the bone fastener, thereby combining the functions and advantages of a poly-axial bone screw and a fixed angle bone screw. Some embodiments of a coaxial locking mechanism may include a c-clip with a locking pin, a c-clip with hooks, a split ring with square corners, a pin that spins inside the collar, pins that travel about a neck of the bone fastener, a coaxially locking top that screws into the collar over a head of the bone fastener, and a top nut that threads onto the head of the bone fastener inside the collar to trap a flange of the collar between a shoulder of the bone fastener and the top nut.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: December 10, 2013
    Assignee: Zimmer Spine, Inc.
    Inventors: Charles R. Forton, Larry T. Khoo, Peter Thomas Miller, Ryan Carter Harvey
  • Patent number: 8574274
    Abstract: A pedicle screw fixation system and method for use of the same are disclosed. In one embodiment, a tulip is provided for holding a head of a pedicle screw substantially along a longitudinal axis. The tulip includes opposing first and second U-shaped receiving slots aligned along a transverse axis. A rod is received by the opposing first and second U-shaped receiving slots. A coupling collar includes a plurality of resilient fingers circumferentially disposed therearound such that a snap fit engagement with the head of the pedicle screw formed. The coupling collar includes a first deformable face operable for contact with the rod. A set screw is adapted for driving engagement through the tulip along the longitudinal axis such that a second deformable face is positioned for contact with the rod. The first and second deformable faces conform to the shape of the rod in response to forceful engagement therewith.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 5, 2013
    Assignee: Eminent Spine LLC
    Inventors: Steve Courtney, David Freehill