Patents Examined by Michael J. Araj
  • Patent number: 8007537
    Abstract: Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the implant can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: August 30, 2011
    Assignee: Kyphon Sarl
    Inventors: James F. Zucherman, Ken Y. Hsu, Charles J. Winslow, Scott A. Yerby, John J. Flynn, Steven T. Mitchell, John A. Markwart
  • Patent number: 7993370
    Abstract: A flexible connection unit for use in a spinal stabilization device, comprising a longitudinal member having first and second end portions and a flexible portion located between the end portions, wherein the flexible portion comprises at least one spacer and a flexible member located in a longitudinal axial channel of the at least one spacer, wherein the flexible member comprises a biocompatible metal material and the end portions maintain the at least one spacer in a substantially fixed longitudinal axial position with respect to the flexible member.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: August 9, 2011
    Assignee: N Spine, Inc.
    Inventor: Tae-ahn Jahng
  • Patent number: 7993341
    Abstract: A navigated orthopaedic guide is provided for establishing datums used to position subsequent components during an orthopaedic surgical procedure.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: August 9, 2011
    Assignee: Zimmer Technology, Inc.
    Inventors: James E. Grimm, Shawn E. McGinley, Sudip Hui
  • Patent number: 7988713
    Abstract: An apparatus for bracing a plurality of vertebrae of the human spine has at least two pedicle screws, each having an annular head with an opening therewithin and including a slot therewithin. Each slot extends into the corresponding opening and includes internal threaded portions. A securing screw to be screwed in each slot is provided. A relatively stiff threaded rod is also provided and is to be inserted into the opening in the head of each of the pedicle screws and to be secured by the securing screws. Adjusting nuts are screwed on the rod and at least one cooperates with each head.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 2, 2011
    Assignee: Stryker Trauma GmbH
    Inventor: Peter Metz-Stavenhagen
  • Patent number: 7981031
    Abstract: A surgical access device includes a proximal frame of fixed construction and a plurality of tissue engaging blades connected to the frame. The plurality of tissue engaging blades may include a first blade that is rotatable, independent of other blades, about an axis that is oriented approximately parallel to a plane defined by the proximal frame.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: July 19, 2011
    Assignee: Depuy Spine, Inc.
    Inventors: William Frasier, Anne Drzyzga, Connie Marchek, Sara Dziedzic, Holly Brideau, Thomas Runco, Nicholas Pavento
  • Patent number: 7972341
    Abstract: A device for a correctly targeted formation of a drill bore centrally in a femoral attachment site of a posterior cruciate ligament of a knee joint comprises a hollow shaft for guiding a drill wire therethrough and a sighting element arranged at a distal end of the hollow shaft. Said sighting element has an edge for placing said sighting element via said edge to an outer margin of a femoral attachment site of a posterior cruciate ligament.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: July 5, 2011
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Sascha Berberich, Andreas Weiler
  • Patent number: 7963981
    Abstract: An apparatus for reducing the profile of a bone fixation plate while preventing backing out of screws is disclosed. The apparatus includes at least one section of relief and sections of engagement. The plate has at least two openings though which two screws can pass through bony tissue. As the screw is tightened, it will begin to lag the plate to the bone. When the screw head interferes with the plate at the interference point, there is a slight resistance that insertion forces can overcome. When the screw is advanced further, it snaps into the sliding fit area and is allowed to move freely. The forces that cause the screw to back out from the plate are preferably not strong enough to pass the screw head back past the interference section. It may be desirable to include a set screw to help prevent backout.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: June 21, 2011
    Assignee: Globus Medical, Inc.
    Inventors: Lawrence Binder, Matthew Hansen
  • Patent number: 7955360
    Abstract: A lordotic guard and method for guiding a bone removal device to form an implantation space in the human spine and, if desired, for inserting a spinal implant into the implantation space. The guard has a body having a first portion and a second portion in pivotal relationship to one another proximate the leading end between an open position and a closed position. The first and second portions define an opening for providing a protected pathway to the disc space and the adjacent vertebral bodies. At least one disc space penetrating extension extends from the leading end of the body adapted for insertion at least in part into the disc space. First and second portions of the extension are in pivotal relationship to one another about an axis that passes through at least a portion of the pathway.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: June 7, 2011
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: Gary K. Michelson
  • Patent number: 7951173
    Abstract: A pedicle screw fastening that can be made polyaxial, monoaxial, fixed, or provide a predefined monoaxial placement. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped or side loading connecting assembly is used to secure to a connecting rod for use in stabilization of a spine. The connecting assembly, for receipt of a spinal connecting rod, includes a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: May 31, 2011
    Assignee: Ortho Innovations, LLC
    Inventors: John E. Hammill, Sr., Robert L. Doubler
  • Patent number: 7951176
    Abstract: The present invention is directed to a bone plate and its method of use for reducing a bone fracture, the bone plate having a longitudinal axis, the bone plate comprising an upper surface, a lower surface, a first hole for engaging a head of a first bone anchor. The first hole is configured and adapted to fix a shaft of the first bone anchor along a first axis. A second hole is spaced apart from the first hole along the longitudinal axis. The second hole is for engaging a head of a second bone anchor, and is configured and adapted to fix a shaft of the second bone anchor along a second axis. The first hole and the second hole are configured such that the first axis and the second axis define a single plane and intersect at a point below the lower surface. The shafts of the first and second bone anchors may touch or nearly touch at the point of intersection, such that the first and second bone anchors form a truss.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: May 31, 2011
    Assignee: Synthes USA, LLC
    Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeff W. Mast, Brett R Bolhofner, Keith A. Mayo
  • Patent number: 7951178
    Abstract: Systems, including methods, apparatus, and kits, for fixing bones with bone plates having hybrid apertures.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: May 31, 2011
    Assignee: Acumed LLC
    Inventor: David G. Jensen
  • Patent number: 7947065
    Abstract: A polyaxial ball and socket joint that can be locked into a fixed position. The fastening system consists of the polyaxial ball and socket joint used in conjunction with a bone screw having threads on one end for use in anchoring to the spine and a spherical connector on the other end operating as a pivot point about which a connecting assembly moves in a polyaxial fashion. A substantially U-shaped connecting assembly has a lower receptacle that operates as a socket for housing an upper retainer ring and a lower split retaining ring. The socket is receptive to the spherical connector which is inserted through the lower split retainer ring causing a momentary displacement thereof which allows for the positioning of the spherical connector between the upper and lower retainer rings.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: May 24, 2011
    Assignee: Ortho Innovations, LLC
    Inventors: John E. Hammill, Sr., Robert L. Doubler
  • Patent number: 7942909
    Abstract: A thread-thru polyaxial pedicle screw fastening system. The fastening system consists of an anchoring bone screw having threads on one end for use in anchoring to the screw to the spine and a spherical connector on the other end operating as a pivot point about which a U-shaped connecting assembly moves in a polyaxial fashion. The U-shaped connecting assembly, for receipt of a spinal connecting rod, has a biased retainer ring for maintaining a positive tension between the connecting assembly and the anchored screw. The system allows for an improved manufacturing step wherein the threaded shank of a bone screws can be passed through a lower portion of the connecting assembly allowing a variety of bone screw sizes to be used with a common sized connector.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: May 17, 2011
    Assignee: Ortho Innovations, LLC
    Inventors: John E. Hammill, Sr., Robert L. Doubler
  • Patent number: 7938849
    Abstract: A method is provided for treating a fractured long bone. The method includes fastening a first bone plate to cortical bone of the fractured long bone and fastening a second bone plate to cortical bone of the fractured long bone. The first bone plate is circumferentially spaced from the second bone plate. The method also includes fastening a first end of a transverse member to the first bone plate and fastening a second end of the transverse member to the second bone plate.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: May 10, 2011
    Inventor: Barry J. Silverman
  • Patent number: 7935122
    Abstract: Methods and apparatus for performing a medical procedure which involves penetrating a bone structure are disclosed. According to one aspect of the present invention, a method for performing a surgical procedure includes introducing an assembly that includes a threaded cannula and a stylet into a bone structure. The threads have a shape that allows the cannula tip to be pushed into the bone body yet prevent the tip from being pulled out of the bone body. In one embodiment, the threads have a buttress shape. The method may also include applying a rotational motion, as for example a torque, to the threaded cannula to adjust the depth of insertion with respect to the implantation site when it is determined that the depth of insertion is to be adjusted.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: May 3, 2011
    Assignee: ArthroCare Corporation
    Inventors: Yves P. Arramon, George Delli-Santi
  • Patent number: 7935118
    Abstract: A kit for removal of bone adjacent to an implanted prosthesis. The kit includes a guide for cooperation with the prosthesis and a tool constrainable by the guide for removal of the bone. The guide may include a first portion of the guide that is co-operable with the tool and a second portion of the guide that is co-operable with the prosthesis.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: May 3, 2011
    Assignee: DePuy Products, Inc.
    Inventors: Tim Vendrely, M. Kathleen Willison, Lowry Barnes
  • Patent number: 7935137
    Abstract: A bone plate system including a bone plate and a bone screw with an integrated locking mechanism is disclosed. The bone screw includes an elongate member having a threaded shank and a bone screw head that is radially deformable. The integrated locking mechanism sits within the bone screw head and can rotate between a locked condition and an unlocked condition. When the bone screw head is seated within an aperture in the bone plate, rotating the integrated locking mechanism into the locked condition helps to prevent bone screw backout.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: May 3, 2011
    Assignee: DePuy Spine, Inc.
    Inventors: Michael Gorhan, Michael Jacene, Eric D. Kolb
  • Patent number: 7935115
    Abstract: A system for fixation of fractures is disclosed. The system comprises a chassis and one or more fixation elements in the form of screws and/or pins. Each fixation element is received in the chassis in such a way that it is locked by friction regarding movement in axial, rotational and angular directions. The friction is preferably given by the material of the chassis having an elasticity giving locking effect by friction on the fixation elements.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: May 3, 2011
    Assignee: General Orthopedics Int. AB
    Inventor: Carl-Göran Hagert
  • Patent number: 7935135
    Abstract: A bone fixation device including a retainer and an anchor. The retainer includes first and second receiving regions. The first receiving region is configured for receipt of a connecting rod. The second receiving region is configured for receipt of an anchor. The first receiving region is constructed so that a connecting rod can be positioned within the receiving region at a number of non-coaxial orientations. The first receiving region is also constructed to accommodate a curved connecting rod. A flexible, integral locking structure is located between the first and second receiving regions. The locking structure is arranged to secure each of the retainer, an anchor, and a connecting rod in a position relative to one another.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 3, 2011
    Assignee: Zimmer Spine, Inc.
    Inventor: James R. Mujwid
  • Patent number: 7931653
    Abstract: The present invention relates to a device at fixing means for fixation of bone fragments at bone fractures, the fixing means (1) preferably being a spike for fixation of bone fragments at trochantery hip fractures. The fixing means (1) comprises a sleeve (5) and a pin (7) which is insertable into the sleeve (5) and displaceable in the longitudinal direction thereof. The pin (7) has a rear part (8) and at least two front parts (9, 10) with bent points or tips. Front parts of the sleeve (5) have openings (13, 14) through which the front parts (9, 10) of the pin (7) can be forced.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: April 26, 2011
    Inventor: Henrik Hansson