Particular Shape Patents (Class 606/308)
  • Patent number: 11045229
    Abstract: A receiver of a pivotal bone anchor assembly includes a receiver body having a base, a pair of upright arms extending upwardly from the base with opposed interior surfaces defining an open channel for receiving a rod, and an axial bore centered around a longitudinal axis and extending downward through the open channel and the base to a bottom opening in communication with a bottom surface of the base. The receiver also includes an internal non-threaded recess with a downwardly-facing surface formed into internal surfaces of the axial bore and spaced below a guide and advancement structure. The receiver further includes a horizontally elongated tool engaging groove formed into the upper portions of the outwardly-facing exterior surfaces of the each of the upright arms.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 29, 2021
    Inventor: Roger P. Jackson
  • Patent number: 10987138
    Abstract: Various exemplary methods and devices are provided for fixing bone anchors to bone. In general, the methods and devices can allow for a bone anchor to be fixed to a bone at a desired angle to a surface of the bone. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member for seating a head of the bone anchor, and a compression member for securing the bone anchor at fixed angle with respect to the receiver member when the compression member is seated within the receiver member. Corresponding engagement features of the compression member and the receiver member can be engaged in a secured configuration to inhibit or prevent removal of the compression cap from the receiver member and optionally to substantially prevent longitudinal and/or rotational movement of the compression member with respect to the receiver member.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: April 27, 2021
    Assignee: Medos International Sari
    Inventors: Thibault Chandanson, Ernest Quintanilha, Frank Spratt, Philip A. Cormier
  • Patent number: 10973555
    Abstract: A pivotal bone anchor assembly includes a receiver having upright arms defining an channel for receiving an elongate rod and an axial bore extending downward from the channel to a bottom opening, and a shank having an anchor portion and an integral upper portion that is positionable in the axial bore with the shank extending downward through the bottom opening. The upright arms include break-off extensions and outer horizontally extending tool engagement grooves. The assembly further includes an insert positionable within the axial bore and into an overlapping engagement with a downward-facing abutment surface that is configured to inhibit movement of the insert.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: April 13, 2021
    Inventor: Roger P. Jackson
  • Patent number: 10898233
    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: Grant
    Filed: January 31, 2020
    Date of Patent: January 26, 2021
    Inventor: Roger P. Jackson
  • Patent number: 10874437
    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: November 21, 2019
    Date of Patent: December 29, 2020
    Inventor: Roger P. Jackson
  • Patent number: 10828076
    Abstract: A plate member assembly is provided for use in orthopaedic or trauma surgery. The plate member assembly includes a plate member having a top side and a bottom side with at least one passage extending therethrough. The at least one passage includes a first bore with a first end open towards the top side, a seat portion configured to receive the head of the bone anchor, and a second bore open towards the bottom side. The first bore comprises a first central axis and the seat portion comprises a second central axis. The anchor can be angled within the seat portion relative to the second central axis. Recesses are provided at the first bore and second bore to permit the bone anchor to be further angled in a favored direction relative to the second central axis.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: November 10, 2020
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventor: Markku Biedermann
  • Patent number: 10786284
    Abstract: A bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, a compression member positioned within the receiver member, and a closure mechanism including an outer set screw and an inner set screw. The outer set screw delivers a distal force to the compression member to fix the bone anchor relative to the receiver member. The proximal surface of the compression member has a shape configured to restrict deformation of the compression member arms including motion of the compression member arms relative to each other. The distal surface of the outer set screw has a shape that is complementary to the shape of the proximal surface of the compression member.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 29, 2020
    Assignee: Medos International Sarl
    Inventors: Frank Spratt, Ernest Quintanilha, Thibault Chandanson
  • Patent number: 10765456
    Abstract: A polyaxial bone screw assembly includes a threaded shank body having an integral upper portion receivable in a receiver, the receiver having an upper channel for receiving a longitudinal connecting member and a lower cavity cooperating with a lower opening. The upper portion expands a retaining member in the receiver cavity to capture the shank upper portion in the receiver. In some embodiment either the retaining member or an insert provide for a friction fit of the shank upper portion in the receiver resulting in non-floppy placement of the shank with respect to the receiver. Some retainers and inserts have a lock-and-release feature. Final locking of the polyaxial mechanism is provided by frictional engagement between the shank upper portion and the retaining member. A pre-assembled receiver, retaining member and optional insert may be popped-on or snapped-on to the shank upper portion prior to or after implantation of the shank into a vertebra.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: September 8, 2020
    Inventor: Roger P. Jackson
  • Patent number: 10709562
    Abstract: Embodiments of devices, apparatuses, kits, and methods for repairing a human joint by suturing biological tissue to the articular surface of a bone at the joint (e.g., repairing defects in the humerus at the glenoid joint after an anterior shoulder dislocation) are described herein. Biological tissue may include hard tissue such as bone or a joint socket or soft tissue such as cartilage, ligaments, tendons, or muscle tissue.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 14, 2020
    Assignee: ARTHROSURFACE, INC.
    Inventors: George Sikora, Steven Ek
  • Patent number: 10610260
    Abstract: A receiving part for coupling a bone anchor to a rod is provided, where the bone anchor includes a shank for anchoring to a bone or a vertebra. The receiving part includes a first end and a second end, the second end being connected to the shank, a bore extending from the first end into the receiving part for receiving a fixation device, the bore having a bore axis, and a recess for receiving a rod, the recess being open at the first end of the receiving part for allowing insertion of the rod and having opposing sidewalls on at least one side of the bore. When a rod is inserted into the recess, a longitudinal axis of the rod extends substantially perpendicular to the bore axis. A resilient retention element is provided on at least one of the opposing sidewalls, where the resilient retention element is deflectable toward the at least one sidewall when the rod is inserted.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 7, 2020
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Bernd Fischer
  • Patent number: 10603086
    Abstract: An embodiment includes a system comprising: a tulip including a slot to receive a linkage, first and second side walls that define a portion of the slot, and a ring that couples the first side wall to the second side wall; wherein the ring couples to the first side wall at a thinned first proximal fulcrum and to the second side wall at a thinned second proximal fulcrum and the ring pivots about the first and second proximal fulcrums when the ring is forced proximally; wherein the first side wall includes a first sidewall projection that projects past the first proximal fulcrum and the second side wall includes a second sidewall projection that projects past the second proximal fulcrum. Other embodiments are described herein.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: March 31, 2020
    Assignee: Genesys Spine
    Inventors: John Stokes, David L. Greenwald, Josh Kaufmann, Greg Calbert, Scott Bryant, Landon Gilkey, Brian Bergeron
  • Patent number: 10595917
    Abstract: A bone screw comprises a main body including a shank portion, a head portion attached to the shank portion, and a cap moveably attached to the head portion. The head portion includes a tool interface structure therein having a closed end portion, an open end portion and sidewall extending therebetween. A tool lock recess is provided in at least one of the sidewalls of the tool interface structure. The tool interface structure is accessible through an opening within an exterior surface of the cap.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: March 24, 2020
    Inventor: Thomas Stuart Loftus
  • Patent number: 10543020
    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: April 25, 2019
    Date of Patent: January 28, 2020
    Inventor: Roger P. Jackson
  • Patent number: 10512487
    Abstract: A cervical polyaxial bone anchor includes a shank having an integral spherical head and a receiver having an upper channel for receiving a rod and a lower seat near a lower opening for receiving a closed retainer that includes a compressible upper portion engaged with the receiver seat and an expandable lower portion capturing the shank head. An outer sleeve slidable with the receiver prohibits expansion of the retainer lower portion during operation. A compression insert engages the retainer upper portion and is in friction fit with the shank head prior to fixing of an angle of the shank with respect to the receiver.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 24, 2019
    Inventor: Roger P. Jackson
  • Patent number: 10507047
    Abstract: A tool set for implanting a rod in a human spine in conjunction with bone screws. The tool set includes a pair of end guide tools that receive opposite ends of the rod in channels and under manipulation by a surgeon facilitate transport of the rod toward the bone screws attached to the guide tools. Intermediate guide tools having guiding pass through slots are utilized to guide intermediate locations along the rod toward associated bone screws. An attachment structure operably connects the guide tools to the bone screws. The guide tools each include a lower guide and advancement structure to allow a closure top with mating structure to be rotated and driven downward against the rod and to cooperate with similar structure in the bone screw to seat and lock the rod therein. A method utilizing the tool set allows a surgeon to percutaneously implant the rod in the patient.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 17, 2019
    Inventor: Roger P. Jackson
  • Patent number: 10478226
    Abstract: A polyaxial bone anchoring device is provided comprising a bone anchoring element having a shank to be anchored in a bone and a head; a receiving part coupled to the shank and configured to pivotably receive the head, and having a channel for receiving a rod and a longitudinal axis; a pressure member configured to be positioned in the receiving part; a locking member insertable into the channel; wherein the pressure member has a deformable portion; and wherein, when the locking member is advanced into the channel in the direction of the longitudinal axis, the locking member in moveable from a position where it contacts the pressure member resulting in a load applied to the pressure member that clamps the head, to a position where the locking member contacts the pressure member such that the deformable portion is deformed and the locking member contacts the rod and clamps the rod.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: November 19, 2019
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Bernd Fischer
  • Patent number: 10465342
    Abstract: A metering rod holder assembly for supporting a metering rod in compressive engagement with a surface from which a fluid is to be metered. The rod holder assembly includes a base member having a channel opening to a first face thereof, and a rod bed insert at least partially received in the channel of the base member in spaced relation to a base wall of the channel. The rod bed insert includes a metering rod slot for receiving a metering rod, and a flank engaging surface engaged with at least one flank surface of the base member, the rod bed insert movable from a first position to a second position within the channel.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 5, 2019
    Assignee: Buschman Corporation
    Inventor: Westlake David Buschman
  • Patent number: 10413330
    Abstract: A spinal construct comprises a fastener including a first portion defining an implant cavity and a second portion configured to penetrate tissue. A member defines a cavity configured for disposal of at least a portion of the first portion. The member includes an implant engaging surface fixable within the implant cavity and connected to a connecting element fixable adjacent the first portion. Systems and methods of use are disclosed.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 17, 2019
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Benjamin David Cowan, Robert A. Farris
  • Patent number: 10405890
    Abstract: The present invention relates to a bone fixation device (1) for securing attachment between a screw and a vertebra comprising two pedicles, comprising a hollow cavity having a longitudinal axis, a distal part (2) having itself a distal end and (7) a proximal end (8), a proximal part (3) having itself a distal end (9) and a proximal end (10) and a flange at the proximal end (10), characterized in that: —the distal part (2) comprises a deformable area (2D) comprising at least three helical slots (6); and—the distal part (2) comprises a full portion (5) located distally after said at least three helical slots (6); further characterized in that said full portion (5) cooperates with the screw such that once the screw abuts against the flange (4) of the bone fixation device (1), further screwing causes the deformation of the deformable area (2D) of the distal part (2) and the retraction of the distal end of the distal part (7) towards the proximal end of the distal part (8); and in that after screwing, the borders
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: September 10, 2019
    Assignee: VEXIM S.A.
    Inventors: Yves-Alain Ratron, Jean-Francois Oglaza
  • Patent number: 10383667
    Abstract: The disclosure relates to a bone plate systems and method. A system comprises a bone plate having a bone facing side, a front side being arranged substantially opposite to and facing away from the bone facing side, and at least one insert receiving portion, the system further comprising at least one insert defining a contacting region for contacting an adjacent bone surface and being releasably receivable in said insert receiving portion, wherein the insert is insertable into the insert receiving portion from the bone facing side.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 20, 2019
    Assignee: Stryker European Holdings I, LLC
    Inventors: Milton Torres, Axel Bernhard Cremer, Kennan Hanson, Yuri Zaitsev, Zongtau Zhang, Jan Heinsohn
  • Patent number: 10368916
    Abstract: A bone fastener comprises a first member that defines an implant cavity. A part is disposed with the first member. A retainer is connected with the part and the first member, and includes an expandable orientation and a non-expandable orientation. A second member is connectable to the retainer and configured to penetrate tissue. Implants, systems, instruments and methods are disclosed.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: August 6, 2019
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: Jason M. May
  • Patent number: 10363026
    Abstract: A top locking rotatable suture anchor device secures one or more sutures with the suture anchor device, installed within a bone at a surgical treatment site, providing rotation of the suture while secured within the suture anchor device and providing adjustment to the tension of the suture during the surgical procedure, the suture anchor device including a delivery tool cooperating with the suture device to conduct the installation of the suture anchor device and tensioning of the suture within suture anchor device.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: July 30, 2019
    Assignee: Fusion Orthopedics, LLC
    Inventors: David Gordon Levinsohn, Hugh Sharkey
  • Patent number: 10226282
    Abstract: A bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, a compression member positioned within the receiver member, and a closure mechanism including an outer set screw and an inner set screw. The outer set screw delivers a distal force to the compression member to fix the bone anchor relative to the receiver member. The proximal surface of the compression member has a shape configured to restrict deformation of the compression member arms including motion of the compression member arms relative to each other. The distal surface of the outer set screw has a shape that is complementary to the shape of the proximal surface of the compression member.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 12, 2019
    Assignee: Medos International Sarl
    Inventors: Frank Spratt, Ernest Quintanilha, Thibault Chandanson
  • Patent number: 10195052
    Abstract: An expandable interbody fusion device includes superior and inferior plates that are configured to receive a sequentially inserted stack of expansion members or wafers. The superior and inferior plates include features that at least initially interlock the two plates until the superior plate is dislodged by pressure from the growing wafer stack. The wafers include features on their top and bottom surfaces that interlock the wafers in multiple degrees of freedom so that the wafer stack is not disrupted when the fusion device is fully expanded. Each wafer also includes features that interlock with the inferior plate until the wafer id dislodged by sequential introduction of another wafer.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: February 5, 2019
    Assignee: SPINE WAVE, INC.
    Inventors: Michael Landry, Steven J. Wysocki
  • Patent number: 10182846
    Abstract: This disclosure relates to a spinal implant that can provisionally retain a rod in an assembly head without having to first lock the rod relative to the assembly head. The spinal implant has a clip insert structured to retain the rod in the assembly head. The clip insert has a top portion with a cylindrical opening and extending over the cylindrical opening to cover the connection rod in part when the connection rod is engaged in the clip insert. The top portion is deformable by application of force on the connection rod to engage the connection rod with the clip insert. The clip insert and the assembly head are mechanically decoupled and can be fully received within the assembly head. The mechanical forces to which the assembly head is subjected are not transmitted to the clip insert.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: January 22, 2019
    Assignee: Zimmer Spine S.A.S.
    Inventor: Christian Baccelli
  • Patent number: 10070969
    Abstract: A device for intervertebral disc repair includes a cannulated screw having a head and a shaft, a plug defining an aperture, and an intervertebral spacer. The screw is configured to be placed through the aperture and into engagement with the spacer. A kit includes the device, a guide wire connectable with the spacer, and a bone tamp. Methods of using the device and kit are provided.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 11, 2018
    Assignee: Stryker European Holdings I, LLC
    Inventor: Thomas A. Alheidt
  • Patent number: 10064657
    Abstract: A polyaxial bone anchor assembly, comprising: a threaded screw portion comprising an externally threaded head end; a head body selectively disposed concentrically about the externally threaded head end of the threaded screw portion, wherein the head body defines an internally threaded hole in a bottom portion thereof; and an externally threaded compression saddle assembly selectively disposed within an interior portion of the head body and selectively engaging the externally threaded head end of the threaded screw portion; wherein the externally threaded compression saddle assembly and the externally threaded head end of the threaded screw portion are selectively disposed within the interior portion of the head body by engaging and passing through the internally threaded hole in the bottom portion of the head body.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: September 4, 2018
    Assignee: FloSpine, LLC
    Inventor: James Q. Spitler
  • Patent number: 10058354
    Abstract: A two-piece closure for polyaxial bone screws includes an outer fastener and an inner set screw, the outer fastener having a drive system with pockets that cooperate with a pronged drive tool. The polyaxial screw includes a lower pressure insert engaged with the outer fastener, the insert in some embodiments being made from a cobalt chrome alloy.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 28, 2018
    Inventor: Roger P. Jackson
  • Patent number: 9867640
    Abstract: A tulip assembly configured to be coupled to a screw head having a first diameter includes a housing, wherein the housing defines an inner diameter configured to engage the first diameter of the screw head. The exemplary inner diameter of the housing being smaller than the first diameter of the screw head.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: January 16, 2018
    Assignee: Nexus Spine, LLC
    Inventors: Michael D. Ensign, David T. Hawkes
  • Patent number: 9855077
    Abstract: A spinal implant with at least one flexible elongated extension element is provided. The spinal implant has a profile that is lower than standard spinal implants. The spinal implant includes a bone anchor with a head portion and a shaft extending along a longitudinal axis of the bone anchor. A head plate is coupled to the bone anchor. The head plate includes a first elongated extension element and a second elongated extension element. The first elongated extension element and the second elongated extension element may be formed as a single monolithic element that is attached to the head plate by passing through a pair of openings provided on the head plate. At least one of the first elongated extension element and the second elongated extension element is flexible.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: January 2, 2018
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Christopher L. Ramsay, Sara Dziedzic, Michael Mahoney
  • Patent number: 9839454
    Abstract: An intramedullary device, having a first longitudinal axis extending between a proximal end and a distal end thereof, is provided. The intramedullary device may include a first bore and a second bore. The first bore may include a second longitudinal axis and may extend through the intramedullary device between a first opening and a second opening. The second longitudinal axis may define a first angle (?1) with the first longitudinal axis. The second bore may include a third longitudinal axis and may extend through the intramedullary device between the first opening and a third opening. The third longitudinal axis may define a second angle (?2) with the first longitudinal axis.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: December 12, 2017
    Assignee: Biomet C.V.
    Inventors: Stephen Andrew Sems, Daniel Horwitz, Tracy Watson, Michael Wich, Greg Gohring, Daren Granger, Joseph Michael O'Reilly
  • Patent number: 9808289
    Abstract: The present disclosure includes an external fixator ring that includes a central opening, inner and outer ring surfaces and upper and lower ring surfaces. In some embodiments, one or more apertures are defined in the inner or outer surface for receiving securing devices. The apertures in the inner or outer surface are adapted to provide rigid attachment for connection struts while allowing for a range of motion between the interconnected rings. In some other embodiments, the external fixator ring further comprises angled flanges extending radially from the inner or outer surface. The angle flanges each include a mounting surface, apertures are defined in the mounting surface of the angle flanges for receiving securing devices.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: November 7, 2017
    Assignee: TEXAS SCOTTISH RITE HOSPITAL FOR CHILDREN
    Inventors: John D. Ross, Mikhail L. Samchukov, Alexander M. Cherkashin, John G. Birch
  • Patent number: 9795416
    Abstract: A bone screw assembly includes an anchor portion and a head portion, such as a rod-receiving portion, movably mounted to the anchor portion to allow for controlled angulation between the anchor portion and the head portion. The anchor portion is pivotable in one or more selected directions about an axis relative to the head portion. A restriction member, which may be a rod seat, prevents the anchor portion from pivoting in one or more different directions about another axis relative to the head portion and/or a spinal fixation element received in the head portion. The restriction member may be inserted in the head portion to control direction that the anchor portion pivots relative to the head portion. The restriction member may also serve as a compression member and/or rod seat for seating a spinal rod coupled to the bone screw assembly.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 24, 2017
    Assignee: Medos International Sárl
    Inventors: Nam T. Chao, Simon Siu, Ronald Sacher, Jerold P. Gurley, Randal Betz, Peter O. Newton
  • Patent number: 9744654
    Abstract: Devices, systems, and methods are provided for driving an implant and applying counter torque. For example, a driver can include a handle, a driver shaft, and a counter torque shaft, the counter torque shaft being laterally offset from the driver shaft. A distal end of each shaft can mate with a specific type of implant and/or anatomy. The shafts can be removed and replaced from the device, allowing a user to select shafts having particular lengths and/or mating tips. In use, distal ends of the shafts can be fixed or constrained relative to one another and to an implant such that the counter torque shaft cannot orbit around the driver shaft. Rotating the handle can rotate the driver shaft, driving the implant. This can cause the counter torque shaft to try to orbit around the driver shaft, but the fixed/constrained ends restrict this motion, applying the counter torque.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 29, 2017
    Assignee: Medos International Sarl
    Inventor: Zoher Bootwala
  • Patent number: 9629666
    Abstract: An apparatus is designed to attach an implant to bone in a manner that permits rotational adjustment of the implant about multiple axes prior to securement via the apparatus. The apparatus includes separate rotational and translational fasteners that can be individually locked to independently restrict rotation and translation of the implant relative to the bone. The rotational fastener includes an interpositional member, an expandable engagement member, and a rotational locking member that urges the expandable engagement member to advance along the interpositional member. The resulting expansion of the engagement member causes it to engage the implant. The rotational fastener is slidable along a fixation member implanted in the bone until the translational fastener is applied to restrict relative translation between the rotational fastener and the bone.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: April 25, 2017
    Assignee: GLOBUS MEDICAL, INC.
    Inventors: Daniel J. Triplett, Joel R. Helgerson, Robert W. Hoy
  • Patent number: 9597120
    Abstract: A bone anchoring device includes a bone anchoring element having a head and a shaft, a receiving part for coupling the bone anchoring element to a stabilization element, the receiving part having a bore having a bore axis, a seat member configured to be arranged in the bore and to be rotatable around the bore axis, the seat member forming a seat for polyaxially holding the head, the seat member being configured to allow a greater pivot angle of the bone anchoring element in a first direction compared to other directions when the bone anchoring element and the seat member are in the receiving part, and a pressure member configured to contact the head to exert pressure onto the head, and to be connected to the seat member, such that the pressure member is rotatable together with the seat member around the bore axis.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: March 21, 2017
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Tobias Hägle
  • Patent number: 9566093
    Abstract: A bone screw having a screw member possessing a threaded section and a head and a receiving part at the head end for receiving a rod to be connected to the bone screw is provided. The receiving part has on open first bore and a substantially U-shaped cross-section having two free legs provided with a thread. Furthermore, the receiving part has a second bore on the end opposite to the first bore whose diameter is greater than that of the threaded section and smaller than that of the head. On the bottom of the first bore a seat for the head is provided. In order that the screw member can be pivoted to at least one side by an enlarged angle, the edge bounding the free end of the second bore viewed relative to the axis of the first bore is of asymmetric construction.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 14, 2017
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Jürgen Harms
  • Patent number: 9504497
    Abstract: Provided is an iliosacral polyaxial screw system. A multiple part insert member is provided to secure the screw to the housing of the assembly to accommodate screws in which the shank diameter of the screw is greater than the bottom opening of the screw housing or greater than the opening of a ring member designed to capture the head of the screw in the housing.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: November 29, 2016
    Assignee: K2M, Inc.
    Inventors: Timmon Ark, Daniel Genovese, Theo Choi
  • Patent number: 9480501
    Abstract: The present disclosure relates, in some embodiments, to spinal fixation systems that may comprise a bone screw, a body, and a pressure cap. A bone screw may comprise a head at a proximal end, a bone connection element at a distal end, and an external protrusion on a head of a bone screw. A body may comprise a proximal end, a distal end, a mounting rod receiving channel at a proximal end, and a bone screw head receiving channel at a distal end. A portion of the mounting rod receiving channel may be operable to receive a compression element. A pressure cap may comprise a proximal end, distal end, and an internal recess on a distal end. An internal recess may be configured to mate with an external protrusion of a bone screw so as to limit the movement of a bone screw.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: November 1, 2016
    Assignee: BLACKSTONE MEDICAL, INC.
    Inventor: Samuel Fang
  • Patent number: 9463047
    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: Grant
    Filed: February 7, 2014
    Date of Patent: October 11, 2016
    Assignee: VertiScrew, LLC
    Inventors: Muralidhara Rudhra Raju, Amir Ali Akhavi
  • Patent number: 9451991
    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: Grant
    Filed: February 7, 2014
    Date of Patent: September 27, 2016
    Assignee: VertiScrew, LLC
    Inventors: Muralidhara Rudhra Raju, Amir Ali Akhavi
  • Patent number: 9451993
    Abstract: A cervical polyaxial bone anchor includes a longitudinal connecting member receiver structure and a cooperating shank. The shank has a body and an integral head with first and second spherical surfaces of different radii and a plurality of spaced curvate apertures for receiving portions of the longitudinal connecting member to result in a greater angle of inclination of the shank with respect to the receiver. The receiver has an upper channel and a lower cavity that further includes an expansion area and an operational seat for a split retainer ring that captures and fixes the shank head within the receiver.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: September 27, 2016
    Inventor: Roger P. Jackson
  • Patent number: 9414826
    Abstract: A surgical retractor comprising an attachment stick, provided with a tip end, intended to be inserted and attached to hard human tissue, such as bone tissue or a vertebra, and at least one shank, attached to the stick, for supporting and keeping organs, muscles and/or tissues at a desired position. The invention is characterized in that said attachment stick has a general shape of a circular cylinder wherein at least one recess is arranged in the outer surface of the stick which recess extends from the tip end in an axial direction of the stick, wherein the recess has a concavely curved shape as seen in a radial cross section taken across the axial direction of the stick.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: August 16, 2016
    Assignee: ELOS MEDTECH TIMMERSDALA AB
    Inventor: Pavel Neumann
  • Patent number: 9414863
    Abstract: A polyaxial bone screw assembly includes a receiver, a shank, an articulation structure for retaining the shank in the receiver and a compression insert for engagement with a longitudinal connecting member such as a rod. The articulation structure includes substantially spherical convex and concave surfaces that slidably engage both shank and receiver surfaces to provide compound articulation between the receiver and the shank. The receiver includes inwardly directed spring tabs engaging the insert and prohibiting rotation of the insert within the receiver.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 16, 2016
    Inventor: Roger P. Jackson
  • Patent number: 9381054
    Abstract: A bone fixation device comprises an elongated body extending from a head at a proximal end to a shaft at a distal end along a central longitudinal axis. A slotted opening extends distally into the head by a predetermined distance, the opening defining a spring portion on a lateral side thereof, the spring portion being biased toward the central longitudinal axis and configured to be deflectable away from the central longitudinal axis upon application of a radially expansive force thereto.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 5, 2016
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Martin Felder, Oliviero Durante
  • Patent number: 9314286
    Abstract: Osteosynthesis constructs for treating bone fractures and bone screws for use in such systems are disclosed. The bone screws include a threaded front section configured for engagement with cortical bone, a threaded mid-section and an unthreaded neck section configured for limited movement within the near cortex of the bone. Osteosynthesis constructs of the type disclosed promote secondary healing by allowing for substantially parallel motion at the near and far cortex within the effective motion range for callus formation.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 19, 2016
    Assignee: Zimmer, Inc.
    Inventors: Michael Bottlang, Michael K. Keith, Josef Doornink, Anthony Lee Koser
  • Patent number: 9259244
    Abstract: A spine stabilization system is provided. The system utilizes a self-cutting rod having a sharp cutting edge that can be anchored to a patient's spine with pedicle screws. The system can be percutaneously delivered, low profile, and allow cutting of surrounding tissue rather than simply spreading the tissue apart during rod insertion.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: February 16, 2016
    Inventor: Said Elshihabi
  • Patent number: 9179956
    Abstract: An orthopedic pin is used in a fixation device for treating fractures. The device has a body with holes to accept the pins. The pins have a layer of bioresorbable material thereon. Engagement between the pins and the body is initially through the bioresorbable material, which engagement rigidly fixes the relative angular orientation between the pins and the body when the device is applied to a bone. As the bioresorbable material is resorbed, the angular relation between the pins and the body is no longer rigidly fixed, thereby effecting a transformation from rigid osteosynthesis to flexible osteosynthesis to allow micromotion between the bone fragments which promotes healing.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: November 10, 2015
    Assignee: Stabiliz Orthopedics, LLC
    Inventors: Douglas Cerynik, Susan P Harding
  • Patent number: 9149298
    Abstract: Plastic rod anchorage for the surgical treatment of the spine where the plastic rod (1) has at least two plane-parallel surfaces (1a) in order to uniformly clamp the rod (1) on its entire circumference.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 6, 2015
    Assignee: SPINESAVE AG
    Inventor: Stefan Freudiger
  • Patent number: RE47551
    Abstract: A polyaxial bone screw assembly includes a receiver, a shank, an articulation structure for retaining the shank in the receiver and a compression insert for engagement with a longitudinal connecting member such as a rod. The articulation structure includes substantially spherical convex and concave surfaces that slidably engage both shank and receiver surfaces to provide compound articulation between the receiver and the shank. The receiver includes inwardly directed spring tabs engaging the insert and prohibiting rotation of the insert within the receiver.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 6, 2019
    Inventor: Roger P. Jackson