Dynamic Stabilization Patents (Class 606/257)
  • Patent number: 10398476
    Abstract: Implant adapters and related methods are disclosed herein. Exemplary adapters can allow a single connector to be used interchangeably for rod-to-rod, rod-to-anchor, or anchor-to-anchor attachment. In some embodiments, the adapter can fit within tight spaces, can be adjustable in one or more degrees of freedom, or can be configured to “snap” onto a rod and/or to “drag” against the rod, e.g., for provisional retention and positioning of the connector prior to locking.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 3, 2019
    Assignee: Medos International Sàrl
    Inventors: Kevin Lee, J. Riley Hawkins, Sheryl Furlan
  • Patent number: 10368920
    Abstract: An occipital fixation assembly is provided. The occipital fixation assembly includes a first mounting plate configured for placement within a sinus cavity adjacent a rear portion of a skull of a patient. A threaded post extends from the first mounting plate. A coupling member includes an aperture configured to receive the threaded post therethrough. The coupling member includes an offset extension configured to support a surgical rod thereon. A fixation nut configured to threadably engage the threaded post of the first mounting plate is rotatable about the threaded post and translatable therealong. The fixation nut is rotatable with respect to the first mounting plate and the coupling member such that rotation of the fixation nut in a predetermined direction brings the first mounting plate and the coupling member toward one another and into secured engagement with the skull of a patient.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 6, 2019
    Assignee: K2M, Inc.
    Inventors: Faheem Sandhu, Kevin R. Strauss, Larry McClintock
  • Patent number: 10321936
    Abstract: Polyaxial pedicle screw with a head in the shape of a ball segment and with a threaded screw shank, wherein a hollow ball segment with a recess for receiving a rod-shaped connector is mounted in the head, in order to permit pivoting movements and rotation movements of the connector, wherein moreover, in the direction of the longitudinal axis of the threaded screw shank, the head in the shape of a ball segment has a cutout with an inner thread in which the rod-shaped connector can be moved in and out and, by means of the inner thread in the cutout, a grub screw can be introduced for blocking the hollow ball segment. According to the invention, a plastic buffer body is fitted in the hollow ball segment and is connected to a ram, wherein the ram has a head which engages in an associated annular groove in the plastic buffer body.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 18, 2019
    Assignee: NGMEDICAL GMBH
    Inventor: Hermann Backes
  • Patent number: 10188428
    Abstract: A subcutaneous implantable device for aligning a spine having a plurality of vertebrae, including a stabilizing plate assembly, a first rod, including a first end, and a second end coupled to the stabilizing plate assembly, a second rod, including a third end, and a fourth end coupled to the stabilizing plate assembly, a winding assembly, and a tensioning member including a line, the line having a first end, and a second end secured to the winding assembly, wherein the line is connected to the stabilizing plate assembly.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: January 29, 2019
    Inventor: Loubert S. Suddaby
  • Patent number: 10010352
    Abstract: An adjustable rod for spinal corrective surgery is provided that includes a first elongate member and a second elongate member, each having rod portions couplable to one or more bone connecting elements and expansion portions slidably moveable with respect to one another. A plurality of holes in each expansion portion are alignable with one another to choose the length of the adjustable rod and a locking element is inserted through a pair of aligned holes to couple the first and second elongate members and secure or fix the length of the expandable rod.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: July 3, 2018
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Roberto Khatchadourian, Edward J. McShane, David Rathbun
  • Patent number: 9844397
    Abstract: A spinal construct comprises a first member configured for attachment to a first portion of vertebral tissue that defines a longitudinal axis. A second member is configured for attachment to a second portion of the vertebral tissue such that the second portion is axially movable relative to the second member and sagittal movement of the second member relative to the second portion is resisted and/or prevented. Systems and methods are disclosed.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: December 19, 2017
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: Thomas A. Carls
  • Patent number: 9730733
    Abstract: A vertebral support device (1) is disclosed, which in various embodiments comprises at least two osseous anchoring implants (2), each designed to be anchored to a vertebra, and at least one linking element (3) fixed to the osseous anchoring implants (2) by fasteners (20) that maintain a fixed angle between the longitudinal axis (L) of the linking element (3) passing through rigid elements (34) of the linking element (3) and the insertion axis (DV) of the implants (2). The linking element (3) includes at least one elastic dampening element (31) that that allows the implant-bearing vertebrae some freedom of movement. The dampening element (31) accommodates the stresses imposed on the linking element (3) during movement of the vertebrae and tends to return the support device (1) to its normal configuration.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 15, 2017
    Assignee: LDR Medical
    Inventors: Paul Cho, Reginald Davis, Gregory Hoffman, Alan McGee, John Williams, Arnold M. Schwartz, William D. Bradley, Alexandre Jodaitis, Herve Chataigner, Hugo Santos Benitez, Chen Zhongqiang
  • Patent number: 9451988
    Abstract: A rod-shaped implant for stabilizing bone structures, in particular the spinal column includes a rod-shaped implant having a rod-shaped member with a first end and a second and a longitudinal axis. The rod-shaped member is at least partly made from a plastic material exhibiting flexibility and includes a longitudinal bore. A reinforcing rod is accommodated in the bore and is made from a material which is more rigid than the material of the rod-shaped member itself. The reinforcing rod is slidable in the bore.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: September 27, 2016
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Jürgen Harms, Helmar Rapp, Berthold Dannecker
  • Patent number: 9232965
    Abstract: A coupling assembly that is configured to couple a surgical screw to another coupling assembly and another surgical screw is disclosed. The coupling assembly comprises a body that includes a receptacle configured to receive a head portion of the surgical screw and hold the head portion through an interference fit. The body further includes either a female member, a male member, or both, the female member and the male member configured to mate with a female member and a male member of the another coupling assembly and thereby join the coupling assembly to the another coupling assembly. Embodiments of the coupling assembly provide for adjustment of the distance between the coupling assemblies, as well as misalignment of various axes of the coupling assembly relative to the surgical screw and the male member. Exemplary embodiments provide fewer parts, greater flexibility during the surgical implantation, and a smaller profile than previous coupling mechanisms.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: January 12, 2016
    Assignee: Nexus Spine, LLC
    Inventor: David T. Hawkes
  • Patent number: 9078712
    Abstract: A drug-eluting device comprising a drug-eluting matrix containing at least one elutable drug, a method of manufacturing a preformed drug-eluting device, and an implant kit comprising the same.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: July 14, 2015
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Jusong Xia, Hai H. Trieu, William F. McKay, Newton H. Metcalf, Jr., Nikolas F. Kerr, Drew Amery
  • Patent number: 9060817
    Abstract: One nonlimiting embodiment of the present application is directed to a system for positioning a connecting element adjacent one or more bones or bony portions, such as the spinal column, through a minimally invasive surgical approach. The system generally includes a number of bone anchors engageable to the one or more bones or bony portions and a number of anchor extenders removably engaged to the bone anchors. A connecting element inserter instrument is engageable with one of the anchor extenders and is movable along a longitudinal axis of the anchor extender. As the inserter instrument is moved along the longitudinal axis toward the bone anchors, a leading end of the connecting element is rotated away from the longitudinal axis and the connecting element is positioned at a location adjacent the number of bone anchors in a minimally invasive surgical procedure. However, in other embodiments, different forms and applications are envisioned.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 23, 2015
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: Jeff R Justis
  • Patent number: 9034018
    Abstract: A spinal stabilization system generally comprises first and second anchor members configured to be secured to first and second vertebrae within a patient's body, a flexible element secured to the first anchor member, and a rigid element secured to the second anchor member. An end portion of the rigid element is coupled to an end portion of the flexible so that the system is able to provide both rigid and dynamic stabilization. The coupling is maintained even if the flexible element relaxes after a period of time within the patient's body.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 19, 2015
    Assignee: Zimmer Spine, Inc.
    Inventors: Emmanuel Zylber, Thomas Egli, Rosemary Thompson, Markus Froehlich, Giuseppe Cicerchia, Jack A. Dant, Thomas O. Viker, Kevin R. Ley
  • Patent number: 9034016
    Abstract: A dynamic spine stabilizer moves under the control of spinal motion providing increased mechanical support within a central zone corresponding substantially to the neutral zone of the injured spine. The dynamic spine stabilizer includes a support assembly and a resistance assembly associated with the support assembly. The resistance assembly generates greater increase in mechanical force during movement within the central zone and lesser increase in mechanical force during movement beyond the central zone. A method for using the stabilizer is also disclosed.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: May 19, 2015
    Assignee: Yale University
    Inventor: Manohar M. Panjabi
  • Patent number: 9034015
    Abstract: The present invention relates generally to a surgical device for the correction of deformities of the spinal column and finds particular, although not exclusive, utility in devices which are surgically implantable. Presently known implantable surgical devices are unable to provide for the progressive correction of spinal deformities assisted by active movements of the human body without fusion of the involved part of the spinal column. The present surgical device comprises a spinal column straightening means for permitting the relative rotation of two substantially adjacent vertebrae about a common axis substantially only in opposite rotational directions.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: May 19, 2015
    Inventor: Ioannis Karnezis
  • Patent number: 9028532
    Abstract: Flexible, sliding, dynamic implant system, for selective stabilization and correction of the vertebral column deformities and instabilities is constituted of a set is constituted by a set of flexible vertebral implants, which are articulated, sliding and dynamic (1) that belongs to the prosthetic and implants medicine field, constituted of two linear parallel sequences of U-shaped supports or platforms (3) where each pair of the sequence is connected with selective mobility to pedicular screws (4) fixed, also in parity, in the due posterior bony portion (5) of each vertebra (6) two thin, continue and flexible metallic blades (8) are coupled between the edges (lateral portion of the platforms with tracks (7) which belong to each U-shaped support. The inferior thin blade (8) is a fixed to the first U-shaped support (3) which corresponds to the first inferior vertebra (6) of the vertebral portion to be implanted.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: May 12, 2015
    Inventor: Paulo Tadeu Maia Cavali
  • Patent number: 9017385
    Abstract: A dynamic spinal stabilization system that enables spinal movements throughout a range of motions from a neutral condition of the spine, to a flexion condition, and an extension condition. The system includes metal pedicle screws and at least one metal support rod, wherein the system includes elastomeric members operatively located to substantially eliminate metal-to-metal contact of metal components of the system that are movable relative to one another.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: April 28, 2015
    Inventor: Melvin Law
  • Publication number: 20150100090
    Abstract: An implantable apparatus for use in the correction of skeletal deformities comprising a hinge applied in various orientations across one or more growth plates and attached to bone via attachment members.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 9, 2015
    Inventor: John Burke
  • Patent number: 8992577
    Abstract: A rod system includes two rods each with a head and a shaft, two elastic members each fitted around one shaft against one head, and a case defining a first inner portion, a second inner portion, and a third inner portion in communication with the first and the second inner portions. A first rod with a first elastic member is seated in the first inner portion so the first elastic member abuts the bottom of first inner portion and the first head protrudes into the third inner portion. A second rod and a second elastic member is seated in the second portion so the second elastic member abuts the bottom of the second inner portion and the second head protrudes into the third inner portion and abuts the first head.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 31, 2015
    Assignee: Tongji University
    Inventors: Liming Cheng, Yan Yu, Zhili Zeng, Wei Xu, Yongwei Jia, Lie Qian, Rui Zhu, Jianjie Wang, Zhourui Wu
  • Patent number: 8992576
    Abstract: A dynamic stabilization system may include an elongated spinal rod, at least two bone anchors attached to the elongated rod, and a dynamic member. One of the bone anchors allows translation of the spinal rod with respect to the bone anchor. The dynamic member comprises a body and an elastomeric element coupled to at least one side of the body. The body of the element is capable of being attached to the elongated spinal rod between the two bone anchors.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: March 31, 2015
    Assignee: DePuy Synthes Products, LLC
    Inventors: Tom Keyer, Eric McDivitt
  • Patent number: 8979902
    Abstract: A dynamic stabilization device for bones or vertebrae is provided which includes at least two bone anchoring elements, at least one connection element, connecting the bone anchoring elements. Each bone anchoring element includes a shank portion to be anchored in the bone or in the vertebra and a head portion to be connected with the connection element. The connection element is at least partly elastic and has at least one loop section. The head portion includes a recess with an opening for inserting the loop section. A securing element is provided for securing the loop section in the recess. The connection element is preferably in the form of an endless loop made of an elastomeric material.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 17, 2015
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Helmar Rapp
  • Patent number: 8979901
    Abstract: A bone fastener includes a fixation portion configured to interface with boney tissue, a connection portion having a longitudinal axis and being configured to interface with an elongated support structure, and a flexible portion disposed between the fixation portion and the connection portion. The flexible portion is configured to permit flexure of the connection portion relative to the fixation portion. The flexible portion has a first set of opposed facing surfaces that mechanically limit the range of flexure in a first direction. It has a second set of opposed facing surfaces that mechanically limit the range of flexure in a second direction. The opposed facing surfaces are substantially transverse to the longitudinal axis.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 17, 2015
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: Hai H. Trieu
  • Publication number: 20150073480
    Abstract: A dynamic fixation device is provided that allows the vertebrae to which it is attached to move in flexion within the normal physiological limits of motion, while also providing structural support that limits the amount of translation motion beyond normal physiological limits. The present invention includes a flexible portion and two ends that are adapted for connection to pedicle screws. In at least one embodiment of the present invention, the normal axis of rotation of the vertebrae is substantially duplicated by the dynamic fixation device. The flexible portion of the dynamic fixation device can include a geometric shape and/or a hinge portion.
    Type: Application
    Filed: April 7, 2014
    Publication date: March 12, 2015
    Inventor: Stephen RITLAND
  • Patent number: 8974499
    Abstract: A posterior vertebral stabilizer has a resilient member such as a linear spring, which operates in tension and compression. The resilient member may be kept straight by a stabilization rod extending through the spring, or by a telescoping assembly that encases the resilient member. The ends of the stabilizer are attachable to pedicles of adjacent vertebrae so that the stabilizer adds stiffness to control flexion and extension of the vertebrae. Two such stabilizers may be used, and may be connected together by a crosslink designed to limit relative rotation of the stabilizers. Thus, the stabilizers may restrict axial rotation and lateral bending between the vertebrae, while permitting stiffened flexion and extension. Such stabilizers help provide the stiffness of a healthy intervertebral disc. In the event that fusion of the joint becomes necessary, a set screw or other component may be used to further restrict flexion and extension.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: March 10, 2015
    Assignee: Stryker Spine
    Inventors: T. Wade Fallin, Daniel E. Gerbec, Joel Dever
  • Publication number: 20150051647
    Abstract: A medical device includes a first elongate member defining an interior region and configured to be coupled to a first anatomical structure within a body and a second elongate member configured to be coupled to a second anatomical structure within the body. A portion of the second elongate member is configured to be disposed within the interior region. The first and second elongate members collectively have a first configuration in which they collectively have a first length when the portion of the second elongate member is disposed within the interior region of the first elongate member. When coupled to the first and second anatomical structures, the first and second elongate members can be moved to a second configuration in which they collectively have a second length different than the first length.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 19, 2015
    Inventor: Sean Suh
  • Patent number: 8945187
    Abstract: A vertebral rod for stabilizing a patient's spine. The rod may include an elongated body with first and second ends and have an elongated cross-sectional shape with a major axis and a minor axis and a centroid positioned at an intersection of the axes. First and second longitudinal channels may extend through the body. The channels may be spaced apart and contained within the body. The body may have a first flexural rigidity along the major axis and a different second flexural rigidity along the minor axis.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: February 3, 2015
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Jeff R. Justis, Fred J. Molz, IV, Michael C. Sherman
  • Patent number: 8940022
    Abstract: A stabilization system for a human spine is provided. The stabilization system may include two dynamic interbody devices and/or one or more dynamic posterior stabilization systems. The dynamic interbody devices may be inserted into a disc space using a posterior approach. The dynamic interbody devices may allow for coupled axial rotation and lateral bending of vertebrae adjacent to the dynamic interbody devices. The dynamic posterior stabilization systems may provide resistance to movement that mimics the resistance provided by a normal functional spinal unit.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: January 27, 2015
    Assignee: Flexuspine, Inc.
    Inventors: Michael E. Landry, Erik J. Wagner, Michael S. Schular
  • Patent number: 8926667
    Abstract: A surgical implant device that controls the relative movement between a first bone or tissue portion and a second bone or tissue portion. The device has a first connector member connected for movement with the first bone or tissue portion and a second connector member connected for movement with the second bone or tissue portion. A biasing member pivotally connects the first connector member to the second connector member and resists the relative rotation between the first connector member and the second connector member.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 6, 2015
    Assignee: Transcendental Spine, LLC
    Inventors: Antonio E. Castellvi, Scott A. Webb, Craig Corrance, John Kapitan, Gert Nijenbanning
  • Publication number: 20150005823
    Abstract: Devices, methods and systems for stabilizing at least a portion of the spinal column are provided. Anchors are engageable to vertebra and a stabilization member is engageable between the anchors. The stabilization member includes an elongate tension member and a compression member in a passage of the tension member.
    Type: Application
    Filed: September 12, 2014
    Publication date: January 1, 2015
    Inventors: Hai Trieu, Michael C. Sherman, Jeff R. Justis
  • Patent number: 8920473
    Abstract: A functionally dynamic stabilization unit and system for treatment of spinal instability are provided. Each unit, and collectively, the system, is configured to control flexion, extension and translation of the affected unstable vertebral area, thereby stabilizing the vertebral segments by restoring normal function. This is achieved by providing a unit and system that allow for lateral bending, axial compression, rotation, anterior segmental height adjustment, and posterior segmental height adjustment. The unit and system provide sufficient segmental stiffness, while also limiting, or controlling, the range of motion (i.e., sufficient stiffness in the neutral or active zone, while limiting or preventing motion outside of the active zone) to stabilize the vertebral segments. In use, the system mimics the natural movement of the normal spine. Furthermore, the system includes a rigid, fusion-promoting coupler configured for use in an adjacent level, or as a substitute for the functionally dynamic unit.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: December 30, 2014
    Assignee: Paradigm Spine, LLC
    Inventors: Frank T. Trautwein, Bernhard Holtkamp, Rudolf Bertagnoli, Markus Salvermoser, Gary L. Lowery, Guntmar H. Eisen
  • Patent number: 8920474
    Abstract: Various methods, devices, and systems are disclosed that facilitate easier and more compact implantation of osteosynthesis devices. In some embodiments, implants are screwed into two vertebrae and a plate is used to hold and displace the spine. In some plate embodiments, at least one longitudinally elongated opening is disposed at one end of the plate and partially opening onto an edge of the plate. In some plate embodiments, at least one longitudinally elongated opening is disposed at one end of the plate having a portion sufficiently large to be inserted without disassembly in the fixation means of an implant already screwed into the spine when the fixation means are already assembled.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: December 30, 2014
    Assignee: LDR Medical
    Inventors: Joël Delecrin, Jérôme Allain, Patrick Tropiano, Serge Ganglof, Rémi Poncer
  • Patent number: 8911477
    Abstract: A dynamic fixation medical implant having at least two bone anchors includes a dynamic longitudinal connecting member assembly having the following features: a pair of elongate segments, each segment having at least one and up to a plurality of integral fins axially extending therefrom; an inner cable fixed to one of the elongate segments and slidingly received in the other elongate segment; a molded spacer that substantially surrounds the fins and may partially or substantially surround the abutment plates; a bumper; a crimp ring; and optional sleeves having abutment plates and fins for placement between elongate segments.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: December 16, 2014
    Inventor: Roger P. Jackson
  • Patent number: 8900272
    Abstract: A dynamic fixation medical implant includes a longitudinal connecting member assembly having an elongate coil-like outer member and an inner cylindrical core attached to the outer member at only one end thereof. Some assemblies include a second longitudinal connecting member in the form of a rod that is fixed to the inner core and extends outwardly from the assembly. Certain assemblies include a threaded core or threaded inserts that cooperate with a helical slit of the coil-like outer member. Two or more cooperating bone screw assemblies attach to the connecting member assembly. The bone screw assemblies may include upper and lower compression members for affixing to and cradling the coil-like outer member only, allowing relative movement between the outer member and the inner cylindrical core. Press fit or snap-on features attach one end of the coil-like outer member to one end of the inner cylindrical core.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 2, 2014
    Inventor: Roger P Jackson
  • Patent number: 8894689
    Abstract: A spine stabilization rod assembly comprises a rod and a sleeve member. The rod has a substantially round cross-sectional profile, a one-piece construction, and a substantially straight longitudinal axis. The rod has a reduced diameter segment between two opposing end segments thereof such that a shoulder is defined between the reduced diameter segment and each one of the end segments. The sleeve member is positioned over the reduced diameter segment of the rod. The sleeve member and the rod are coupled to each other such that translation of the sleeve along the rod causes an end portion of the sleeve to engage a corresponding one of the shoulders for limiting such translation.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: November 25, 2014
    Assignee: Omni Acquisitions, Inc.
    Inventor: David Janice
  • Patent number: 8894688
    Abstract: A medical device includes a first elongate member defining an interior region and configured to be coupled to a first anatomical structure within a body and a second elongate member configured to be coupled to a second anatomical structure within the body. A portion of the second elongate member is configured to be disposed within the interior region. The first and second elongate members collectively have a first configuration in which they collectively have a first length when the portion of the second elongate member is disposed within the interior region of the first elongate member. When coupled to the first and second anatomical structures, the first and second elongate members can be moved to a second configuration in which they collectively have a second length different than the first length.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: November 25, 2014
    Assignee: Globus Medical Inc.
    Inventor: Sean Suh
  • Publication number: 20140343611
    Abstract: A spinal distraction system includes a distraction rod having a first end and a second end, the first end being configured for affixation to a subject's spine at a first location, the distraction rod having a second end containing a recess having a threaded portion disposed therein. The system further includes an adjustable portion configured for affixation relative to the subject's spine at a second location remote from the first location, the adjustable portion comprising a housing containing a magnetic assembly, the magnetic assembly affixed at one end thereof to a lead screw, the lead screw operatively coupled to the threaded portion. A locking pin may secure the lead screw to the magnetic assembly. An o-ring gland disposed on the end of the housing may form a dynamic seal with the distraction rod.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 20, 2014
    Inventors: Scott Pool, Blair Walker
  • Patent number: 8888817
    Abstract: Systems and methods are provided for spinal stabilization with flexible elements and other elements engaged to the vertebrae. Also provided are instruments and methods for insertion of the flexible stabilization elements and other elements and for reduction of displacement between adjacent vertebrae in a minimally invasive surgical approach.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: November 18, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Michael C. Sherman, Roy K. Lim, Kevin T. Foley
  • Patent number: 8870924
    Abstract: A spinal fixation assembly for connecting an elongate member along a region of a spinal column with a plurality of fasteners is disclosed. The spinal fixation assembly comprises a threaded fastener having a first threaded end region and a second end region configured to receive an elongate member, such as a rod. A locking member is included for securing the elongate member within the second end region. The second end region and the locking member include elastomeric members that contact the elongate member to allow for a degree of dynamic movement.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: October 28, 2014
    Assignee: Zimmer Spine, Inc.
    Inventor: Hugh D. Hestad
  • Patent number: 8858600
    Abstract: The present invention provides a dynamic stabilization device positionable about a portion of a spinal column. The stabilization device may generally include a first component and a second component, where the first and second components are movably coupled to one another to define an arcuate path of motion. The stabilization device may also include one or more adjustment elements positionable within first and second adjustment openings to affect the path of motion between the first and second components and/or the behavior and characteristics of the movement. In addition, one or more resistive elements may be adjustably positionable within either and/or both of the first and second adjustment openings to provide resistance and/or dampening of the forces experienced as the first and second components move relative to one another. The stabilization device may further define a joint having three degrees of freedom to adapt to movement of a spinal column.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: October 14, 2014
    Assignee: Spinadyne, Inc.
    Inventors: Steven Brown, Manoj Krishna, Tai Friesem, Jose Fernandez
  • Patent number: 8858599
    Abstract: Devices, methods and systems for stabilizing at least a portion of the spinal column are provided. Anchors are engageable to vertebra and a stabilization member is engageable between the anchors. The stabilization member includes an elongate tension member and a compression member in a passage of the tension member.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: October 14, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Hai H. Trieu, Michael C. Sherman, Jeff R. Justis
  • Patent number: 8852233
    Abstract: An implantable apparatus for use in the correction of skeletal deformities comprising a rod, a pair of spaced apart attachment members, each of the attachment members being attachable to a bone. At least one of the attachment member mounts a rod receiving member, the rod being slidable along a predetermined path with respect to the rod receiving member.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: October 7, 2014
    Inventor: John Gerard Burke
  • Patent number: 8852235
    Abstract: Lumbar disc and facet joint replacement prosthesis are provided. The lumbar disc prosthesis includes first member having a vertebral disc contact surface and a recessed portion on an opposing surface thereof and a second member having a vertebral disc contact surface and a protruding portion on an opposing surface thereof. The protruding portion of the second member engages the recessed portion of the first member in use. The first and second members are provided with at least a middle section and two end sections. The recessed and protruding portions are provided in the middle section of the respective members and each end section has a narrowing taper. The facet joint prosthesis includes a first member for attachment to a first posterior lumbar disc and a second member for attachment to a second posterior lumbar disc. At least a part of the first member is telescopically mounted in at least a part of the second member.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: October 7, 2014
    Assignee: Spinadyne, Inc.
    Inventors: Manoj Krishna, Tai Friesen
  • Patent number: 8845700
    Abstract: A bone screw assembly includes a screw body, including anchor portion and rod-receiving portion, and a rod seat movably mounted in the screw body to allow for controlled angulation between a spinal connection element disposed in the rod seat and the screw body. The rod seat is pivotable in one or more selected directions about one or more axes relative to the screw body. The rod seat may include a first lower rod seat element disposed in a recess of the screw body having a cylindrical bottom surface to facilitate pivoting in a first direction. A second lower rod seat element is stacked on the first lower rod seat element and has a conical bottom surface abutting a top surface of the first lower rod seat element to facilitate pivoting in a second direction.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: September 30, 2014
    Assignee: DePuy Synthes Products, LLC.
    Inventors: Seungkyu Daniel Kwak, Nam T. Chao, Andrea Burke
  • Publication number: 20140257394
    Abstract: An improved dynamic longitudinal connecting member includes a rod portion joined with a tensioned cord portion, for use in a medical implant assembly having at least two bone attachment structures, a spacer covering the join of the rod and cord portions and extending between the at least two bone attachment structures, a sleeve, a bumper and a cord blocker. The spacer and bumper are compressed. The cord portion is slidable with respect to at least one of the bone attachment members.
    Type: Application
    Filed: September 8, 2011
    Publication date: September 11, 2014
    Inventor: Roger P. Jackson
  • Publication number: 20140257395
    Abstract: Dynamic spinal fixation systems including a member, a first attachment portion, a second attachment portion, and an intermediate portion. The first attachment portion is attached at a superior end of the member and includes a first opening. The second attachment portion is attached at an inferior end of the member and includes a second opening. The intermediate portion connects the first and second attachment portions. The dynamic spinal fixation systems may also include a relief in at least one of the first opening and the second opening. The systems may also include a third attachment portion with a third opening and an intermediate portion with a first and a second elastic mechanism. The first elastic mechanism connects the first and third attachment portions and the second elastic mechanism connects the third and second attachment portions. Surgical methods for inserting the dynamic spinal fixation systems in a patient are also disclosed.
    Type: Application
    Filed: August 8, 2012
    Publication date: September 11, 2014
    Applicant: REVIVO MEDICAL, LLC
    Inventors: Eric H. Ledet, Glenn Patrick Sanders
  • Publication number: 20140228887
    Abstract: A bone fixation system with variable z-axis translation is provided. The bone fixation system includes an outer tulip coupled to a bone fastener. An inner tulip, which provides a seat for an elongate fixation rod, is located inside the outer tulip. The inner tulip together with a seated rod is permitted to translate along the z-axis in an unlocked position. Also in the unlocked position, the bone fastener is free to angulate relative to the outer tulip. The bone fixation system includes a locked position in which the z-axis position of the inner tulip and rod relative to the outer tulip is fixed. Also in the locked position, the bone fastener is locked with respect to the outer tulip. The system may be adjusted between the locked and unlocked positions by way of a set screw or independently by rotation of the inner tulip relative to the outer tulip.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 14, 2014
    Inventors: Muralidhara Rudhra Raju, Amir Ali Akhavi
  • Patent number: 8795336
    Abstract: A stabilization device for bone parts or vertebrae includes two bone anchoring devices for anchoring in the bone parts or vertebrae. At least one of the bone anchoring devices includes an anchoring element with an anchoring section for anchoring in a bone part or a vertebra and a head, and a receiving part for receiving a stabilization rod. The receiving part has a seat for receiving the head so that the head can pivot with respect to the receiving part. The stabilization device includes a first pressure element which is movable in the receiving part so that it can be pressed onto the head to lock the angular position of the head. The stabilization device includes at least two stabilization rod sections, and at least two guiding channels within the receiving part which have a distance from each other for guiding through the at least two stabilization rod sections so that the rod sections do not touch each other.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 5, 2014
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Jürgen Harms, Wilfried Matthis
  • Patent number: 8784453
    Abstract: A dynamic spinal stabilization system that enables spinal movements throughout a range of motions from a neutral condition of the spine, to a flexion condition, and an extension condition. The system includes elastomeric members operatively located to substantially eliminate metal-to-metal contact of metal components of the system that are movable relative to one another, one of the elastomeric members having a stepped configuration.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 22, 2014
    Inventor: Melvin Law
  • Publication number: 20140194931
    Abstract: A rod system includes two rods each with a head and a shaft, two elastic members each fitted around one shaft against one head, and a case defining a first inner portion, a second inner portion, and a third inner portion in communication with the first and the second inner portions. A first rod with a first elastic member is seated in the first inner portion so the first elastic member abuts the bottom of first inner portion and the first head protrudes into the third inner portion. A second rod and a second elastic member is seated in the second portion so the second elastic member abuts the bottom of the second inner portion and the second head protrudes into the third inner portion and abuts the first head.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: TONGJI UNIVERSITY
    Inventors: Liming Cheng, Yan Yu, Zhili Zeng, Wei Xu, Yongwei Jia, Lie Qian, Rui Zhu, Jianjie Wang, Zhourui Wu
  • Patent number: 8764802
    Abstract: A pedicle screw for intervertebral support elements consists of a shaft and a head comprising at least two parts. The head is formed as a securing means for at least one support element. Each support element consists of a piece of a cable-like band and a cylindrical support body with an axial lumen containing the band. The band is securable outside end surfaces of the support body in the head. The head is formed with a contact surface via which a pressure stress can be exerted on the support body in the band direction, and indeed using the band and in cooperation with a further pedicle screw. A part of the head, which is firmly connected to the shaft at the one end of the latter, contains a base groove which is oriented transversally to the shaft and into which the part of the band to be secured or a connecting piece which contains the band can be introduced during the securing of the support element by means of a translatory movement in the direction of the shaft and fixed there.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: July 1, 2014
    Assignee: Zimmer GmbH
    Inventors: Reto Walder, Reto Braunschweiler
  • Publication number: 20140180339
    Abstract: A dynamic fixation device is provided that allows the vertebrae to which it is attached to move in flexion within the normal physiological limits of motion, while also providing structural support that limits the amount of translation motion beyond normal physiological limits. The present invention includes a flexible portion and two ends that are adapted for connection to pedicle screws. In at least one embodiment of the present invention, the normal axis of rotation of the vertebrae is substantially duplicated by the dynamic fixation device. The flexible portion of the dynamic fixation device can include a geometric shape and/or a hinge portion.
    Type: Application
    Filed: July 15, 2013
    Publication date: June 26, 2014
    Inventor: Stephen RITLAND