Head Structure Patents (Class 606/305)
  • Patent number: 10426520
    Abstract: A coupling device for coupling a bone anchor to a rod includes a receiving part having a longitudinal axis, a channel for receiving a rod, and an accommodation space for holding a head of a bone anchor, a pressure member having a first portion for holding and clamping the head and a deformable portion with a free end, and a locking member. The pressure member is expandable for inserting the head and adjustable to lock the head. When the deformable portion is at a first configuration, the free end of the deformable portion is supported by the receiving part, and at least part of the locking member is movable to exert a force on the deformable portion for adjusting the deformable portion to a second configuration where at least part of the deformable portion is farther away from the longitudinal axis compared to the first configuration.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: October 1, 2019
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Wilfried Matthis, Bernd Fischer
  • Patent number: 10271877
    Abstract: A coupling device is provided for coupling a rod to a bone anchoring element. The coupling device includes a receiving part having a first end, a second end, a central axis extending through the first end and the second end, and a channel for receiving a rod. The receiving part defines an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head. The coupling device further includes a pressure element arranged at least partially in the accommodation space, the pressure element having a flexible portion to clamp an inserted head, and a clamping element extending at least partially around the flexible portion of the pressure element. The clamping element is configured to move from a first position to a second position in which the clamping element exerts a clamping force onto the pressure element, where the movement includes rotating the clamping element around the central axis.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: April 30, 2019
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Timo Biedermann, Wilfried Matthis
  • Patent number: 10258383
    Abstract: A bone anchoring device includes a receiving part with a rod receiving portion having a first end, a second end, a recess for the rod, an outer surface, and a first engagement structure on the outer surface that extends farther radially outwardly than other parts of the rod receiving portion, and a flexible head receiving portion for inserting and clamping the head. The bone anchoring device also includes a locking ring configured to be arranged around the head receiving portion for locking the head, the locking ring having an outer surface and a second engagement structure on the outer surface that extends farther radially outwardly than the outer surface of the rod receiving portion. The engagement structures are configured to be engaged by an instrument to move the locking ring from a locking position to a position where the inserted head is pivotable.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 16, 2019
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Timo Biedermann, Berthold Dannecker
  • Patent number: 10238433
    Abstract: A device for fixing a rod to an osseous structure. The device is configured to receive the rod with the main axis oriented in a first direction. The device includes a main body, a first fastening member directly connected to the main body and accessible from an outer surface of the main body for fastening the rod to the main body, and a second fastening member, also directly connected to the main body, offset with respect to the first fastening member in said first direction, and separately accessible from an outer surface of the main body for fastening to the main body. A flexible elongate member is provided to attach the main body to the osseous structure. The first and second fastening members are arranged so that the flexible elongate member can be fastened adjacent to the rod.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: March 26, 2019
    Assignee: Zimmer Spine
    Inventors: Karl Belliard, Gilles Larroque-Lahitette
  • Patent number: 10188432
    Abstract: A receiver subassembly adapted to couple with a universal shank to form a bone anchor assembly. The universal shank having an integral upper capture structure with opposed spaced apart flat side surfaces. The receiver subassembly including a receiver including a distal opening for bottom loading of the capture structure of the universal shank there-through. The receiver supporting a retainer and a positioner within the receiver. The positioner supporting a position of the retainer within the receiver. The retainer configured to couple with the capture structure when the capture structure extends at least partially through the distal opening.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: January 29, 2019
    Inventor: Roger P. Jackson
  • Patent number: 10159519
    Abstract: A polyaxial bone anchoring device includes a receiving part having a longitudinal axis, a channel for receiving a rod, and an accommodation space for pivotably holding a head of a bone anchoring element, and a pressure member configured to be positioned in the receiving part and to exert pressure onto the head to lock the head in the receiving part. The pressure member includes a pressure exerting surface and a deformable portion having a free end, wherein the deformable portion is configured to assume at least a first configuration and a second configuration. The polyaxial bone anchoring device further includes a locking member configured to be inserted into the channel and to exert a force onto the deformable portion.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: December 25, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Achim Schünemann, Dimosthenis Dandanopoulos, Wilfried Matthis
  • Patent number: 10117680
    Abstract: The invention relates to an osteosynthesis device having a bone screw (12), which has a threaded shaft (24) and a ball head (26), and having a fork head (14), which has a groove (32) and two legs (34), the ball head (26) being pivotably supported in the fork head (14), and having a pressure piece (16), which is seated on the ball head (26), the pressure piece (16) being braced on the fork head (14) and having two lateral fins (48) extending in the axial direction (30) of the fork head (14) and away from the threaded shaft (24); it is proposed that the pressure piece (16) is supported in the fork head (14) with prestressing in the axial direction (30) and thus in the direction toward the ball head (26) in that at least one of the fins (48) is slit transversely to the axial direction (30) of the fork head (14), so that a slit (50) forms a spring tongue (52), and the pressure piece (16) is thereby resiliently embodied and is braced via the spring tongue (52) on the fork head (14), and that a protrusion (70) prot
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: November 6, 2018
    Assignee: Silony Medical International AG
    Inventors: Frank Thilo Trautwein, Frank Heuer, Timo Ohnmacht
  • Patent number: 10092414
    Abstract: Apparatus and systems relating to spinal implants and instruments for installing such implants. In some embodiments, the system may comprise a spinal implant, an inserter, an intermediary piece, and/or an installation rod. The spinal implant may comprise an at least partially threaded opening configured to receive the installation rod. The opening may be positioned within a fixed wall of the spinal implant, and the opening may comprise a peripheral edge defined by the wall of the spinal implant.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 9, 2018
    Assignee: Amedica Corporation
    Inventors: Stephen P. Brown, Jared M. White, Chad Wayne Lewis
  • Patent number: 10085773
    Abstract: A surgical screw assembly including: a fastener including an elongate shaft having a proximal end and a distal end and a head at the proximal end. A tulip having a an internal bearing surface is provided. A distal end of the tulip has a bore therethrough defining the internal bearing surface. Locking enhancement features are configured to cooperate with the head, such that, in an unlocked configuration, the head is movable relative to the tulip; in a provisionally locked configuration, the locking enhancement features engage the head with a first polyaxial grip strength; and in a finally locked configuration, the locking enhancement features engage the head with a second polyaxial grip strength greater than the first polyaxial grip strength.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 2, 2018
    Assignee: SpineCraft, LLC
    Inventors: Wagdy W Asaad, Jayson Varghese
  • Patent number: 10022158
    Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part having a recess for receiving the rod and an accommodation space with an opening for inserting and accommodating a head of the bone anchoring element, a pressure element having a first end surface and a flexible portion to clamp the head, and a rod receiving element configured to be assembled to the pressure element, the rod receiving element having a first end and a second end defining an opening, and a channel for receiving the rod. The channel has a bottom near the second end of the rod receiving element, and the opening of the rod receiving element opens into the channel. The first end surface of the pressure element can extend through the opening of the rod receiving element and past the bottom of the channel to contact the rod.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: July 17, 2018
    Assignee: BIEDERMANN TECHNOLOGIES GMBH & CO. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Bernd Fischer
  • Patent number: 9931220
    Abstract: One embodiment of the invention includes a sinus tarsi implant with a proximal portion that includes a spherical portion. The spherical portion may include apertures for tissue in-growth. The implant design limits patient discomfort due to pressure points. Other embodiments are disclosed.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 3, 2018
    Assignee: Trilliant Surgical, Ltd.
    Inventor: Jon Olson
  • Patent number: 9883898
    Abstract: A pedicle screw may include an electrically conductive portion formed from a material having a greater electrical conductivity than that of the base material from which the screw is formed. The electrically conductive portion preferentially channels electrical energy supplied by an electrical probe to a location of the electrically conductive portion facing the nerve root. The portion thus provides a sort of electrical highway that helps to focus the electrical energy applied to the pedicle screw in a particular direction, towards the presumed location of the nerve root. As an alternative to placement of the electrically conductive portion in the pedicle screw itself, the electrically conductive portion could be placed within a tap that is used in preparing the pedicle for receipt of the pedicle screw (e.g., in forming the threaded structure in the pedicle bone into which the pedicle screw will then be placed).
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 6, 2018
    Inventor: Jeffrey Scott Smith
  • Patent number: 9872994
    Abstract: A vented set screw is used to secure a connection between an implantable medical device and an implantable lead. The vented set screw includes one or more venting channels that allow liquid and/or gas to flow out of the implantable medical device when the implantable lead is being inserted into the implantable medical device and secured during an implantation procedure. This prevents pressure from building up at the connection, thereby ensuring proper performance of sensing and/or therapy delivery functions of the implantable medical device.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: January 23, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Lawrence D. Swanson, John M. Edgell, Nick A. Youker, Scott Dahl, Kevin P. Rodby
  • Patent number: 9707097
    Abstract: Systems, methods, and devices are described for providing orthopedic implant augments having fastener locking mechanisms. The augments include a surface for mating with an implant component and a surface for interfacing with a patient's bone. The fastener locking mechanisms are aligned such that the augment may be locked in a variety of orientations while maintaining close contact with both an implant and a patient's bone. The alignment of the locking mechanisms provides variability and adjustability to the augment to address a variety of bone anatomies and requirements.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: July 18, 2017
    Assignee: Smith & Nephew, Inc.
    Inventors: Jeffrey J. Shea, Nathaniel M. Quinn, Daniel R. Goldberg
  • Patent number: 9681894
    Abstract: Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 20, 2017
    Assignee: GLOBUS MEDICAL, INC.
    Inventors: Jeff Nichols, Michael Harper, Milan George, Katherine Manninen, John Perkins
  • Patent number: 9655655
    Abstract: A two step locking screw assembly includes a receiving member for receiving a fixation member and an anchor having an enlarged portion and a shank. The enlarged portion of the anchor may be seated in the receiving member. An insert may also extend inside the receiving member. An outer fastener may be positioned in the receiving member. The outer fastener may include a central opening and a pair of ramped flanges. An inner fastener may be disposed inside the central opening of the outer fastener.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: May 23, 2017
    Assignee: Aesculap Implant Systems, LLC
    Inventors: Tyler Haskins, Mohit Prajapati
  • Patent number: 9636148
    Abstract: A polyaxial bone anchor including a housing, a bone screw, and a retainer for pivotably coupling the head of the bone screw to the housing. The retainer is positioned into the bore of the housing and includes a plurality of alternating tabs and slots circumferentially arranged to define a cavity for receiving the head portion of the bone screw therein. The retainer is axially moveable in the housing from a first position in which the head portion is not passable through the lower opening of the retainer to a second position in which the head portion is passable through the lower opening of the retainer.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 2, 2017
    Assignee: Zimmer Spine, Inc.
    Inventors: Alan E Shluzas, Hugh D Hestad
  • Patent number: 9554835
    Abstract: A surgical instrument comprises a body. A first member extends between a first end and a second end. A second member extends between a first end connected with the body and a second end. A third member is connected to the first end of the first member and the body to relatively axially translate the second ends. The third member includes a latch and a lock engageable with the latch. The latch is disposable in a locking orientation and a non-locking orientation. Systems and methods of use are disclosed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 31, 2017
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Jennifer G. Brinkman, Nicholas M. Benson, David W. Harwood, Larry Thomas McBride, Jr.
  • Patent number: 9522021
    Abstract: A polyaxial bone screw assembly includes a threaded shank body having an integral upper portion receivable in an integral receiver, the receiver having an upper channel for receiving a longitudinal connecting member and a lower cavity cooperating with a lower opening. A down-loadable compression insert having a sub-structure, a down-loadable friction fit split retaining ring having inner and outer tangs and an up-loadable shank upper portion cooperate to provide for pop- or snap-on assembly of the shank with the receiver either prior to or after implantation of the shank into a vertebra. The shank and receiver once assembled cannot be disassembled.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: December 20, 2016
    Inventor: Roger P. Jackson
  • Patent number: 9510863
    Abstract: A coupling assembly is presented. The coupling assembly is used to selectively couple a bone screw having an elongate shaft and a head to an elongate rod. The coupling assembly has a coupling element configured to engage the head of a bone screw, as well as the elongate rod. When the elongate rod is engaged by the portion of the top of the coupling element, the coupling element does not extend above a top most portion of elongate rod.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: December 6, 2016
    Assignee: SPECTRUM SPINE IP HOLDINGS, LLC
    Inventor: James C. Robinson
  • Patent number: 9498256
    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: September 17, 2014
    Date of Patent: November 22, 2016
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Jürgen Harms
  • Patent number: 9486204
    Abstract: A method of repairing a stifle, including a first stifle bone and a second stifle bone in engaged opposition to the first stifle bone. The method begins with screwing a first bone screw into the first stifle bone and screwing a second bone screw, having an aperture in its shank, into the second stifle bone. Next, a tension member is used to pull a suture loop, to engage a portion of the suture loop about the shank of the first bone screw. Then, the tension member is used to pull the suture loop through the aperture of the second bone screw and then into engagement about the shank of the second bone screw.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: November 8, 2016
    Assignee: RIVERPOINT MEDICAL, LLC
    Inventors: Patrick Edward Ferguson, Patrick Joseph Ferguson
  • Patent number: 9474553
    Abstract: An implant assembly can include an implant configured to be coupled to at least one bone part. The implant can include an implant body that defines at least one unsmooth surface. The assembly can further include a cap configured to be coupled to the implant body such that the cap overlies the at least one unsmooth surface. The cap can include a shell that defines a cavity that is configured to receive at least a portion of the implant body such that the shell flexes relative to the implant body as the cavity receives the at least a portion of the implant body to thereby couple the cap to the implant. The cap defines an outer surface that is curved.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: October 25, 2016
    Assignee: DePuy Synthes Products, Inc.
    Inventor: Rudolf Koch
  • Patent number: 9445814
    Abstract: A surgical fastener is provided for various surgical fastening applications, including attaching an implantable prosthesis, such as a soft tissue repair fabric, to tissue and/or muscle. The surgical fastener may include a coil body and a separate head that is attached to the coil body. The head may include two or more radial wings extending in an outward radial direction from the head body. Each wing may include an external thread to engage with a corresponding internal thread of a delivery device. Each wing may be spaced from an adjacent wing by an opening therebetween to receive a drive member for driving the surgical fastener. The coil body may be attached to the center of the head. A proximal-most coil of the coil body may be spaced from a distal face of the head to form a gap therebetween.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: September 20, 2016
    Assignee: C.R. Bard, Inc.
    Inventors: Kevin J. Ranucci, Saurav V. Gupta
  • Patent number: 9439688
    Abstract: Facet joint replacement implants may be designed for use on multiple adjacent vertebral levels. Each superior implant may have a substantially semispherical concave surface, and each inferior implant may have a cooperating semispherical convex surface that is deformable to enable it to be pressed into the superior implant concave surface to fix the relative orientations of the superior and inferior implants. Thus, the inferior implant may be attached to the same pedicle as the superior implant, but may also be oriented independently of the superior implant and then fixed in position. Similar mounting structures may be used to attach one or more fusion implants to a level adjacent to that of a facet joint replacement implant.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 13, 2016
    Assignee: GLOBUS MEDICAL, INC.
    Inventors: Daniel J Triplett, Alan Chervitz
  • Patent number: 9439680
    Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part having a recess for receiving the rod and an accommodation space with an opening for inserting and accommodating a head of the bone anchoring element, a pressure element having a first end surface and a flexible portion to clamp the head, and a rod receiving element configured to be assembled to the pressure element, the rod receiving element having a first end and a second end defining an opening, and a channel for receiving the rod. The channel has a bottom near the second end of the rod receiving element, and the opening of the rod receiving element opens into the channel. The first end surface of the pressure element can extend through the opening of the rod receiving element and past the bottom of the channel to contact the rod.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: September 13, 2016
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Bernd Fischer
  • Patent number: 9408637
    Abstract: A bone fixation device includes a first element extending from a first head to a first shaft along a first longitudinal axis and having a first channel extending therethrough. The first head rests against a portion of bone adjacent to a first hole through which the first shaft is inserted. A second element includes a second shaft extending along a second longitudinal axis to a second head and having a second channel extending therethrough, the second head resting against a portion of bone adjacent to a second hole through which the second shaft is inserted. The second channel is dimensioned to receive the first shaft therein. A tensioning element is insertable through the first and second channels so that tension applied at a second end thereof imparts a compressive force to the a bone into which the first and second elements are inserted.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: August 9, 2016
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: George Mikhail, Glen Pierson
  • Patent number: 9364275
    Abstract: A system and method for pressing fragments of a fracture against each other includes a compression device comprising a hollow shaft. The system has an inner engagement portion for engaging an outer feature of a screw head arranged at a distal end of the shaft. The system has a supporting element with a contact surface adapted to abut on one of the fragments, and a joint is provided between the supporting element and the hollow shaft. The joint is formed so as to allow a rotation of the shaft about a longitudinal axis thereof relative to the supporting element. Additionally, the joint is formed to allow a pivot movement of the supporting element relative to the shaft.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: June 14, 2016
    Assignee: Stryker European Holdings I, LLC
    Inventors: Fernando Ferreira Monteiro Pacheco, Guillaume Bugnard
  • Patent number: 9339302
    Abstract: A polyaxial bone anchoring device is provided, comprising a bone anchoring element having a shank, a head, a receiving part for pivotably receiving the head, and a channel for receiving a rod; a pressure member configured to be arranged in the receiving part and to exert pressure onto and lock the head; a locking assembly insertable into the channel, the locking assembly comprising a first locking member having a bore; a second locking member to be provided in the bore, wherein, when the second locking member is rotated, in a first configuration, the first locking member and the second locking member are rotationally fixed relative to each other and the first locking element is advanced to contact the pressure member and in a second configuration, the second locking member is rotatable within the first locking member and the second locking member is advanced to contact the rod.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: May 17, 2016
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Bernd Fischer
  • Patent number: 9320555
    Abstract: An elongated modular implant is provided which has a distal part and a proximal part both having a leading end and a trailing end, respectively. The trailing end of the distal part includes a tool engagement portion and the leading end of the proximal part includes a distal part engagement portion for an engagement with the tool engagement portion of the distal part. The implant further includes an assembly element for firmly coupling the distal part and the proximal part when the first tool engagement portion of the distal part engages the distal part engagement portion of the proximal part. The proximal part trailing end may also have a tool engagement portion identical to the trailing end of the distal part.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 26, 2016
    Assignee: Stryker European Holdings I, LLC
    Inventors: Robert Probe, Martje Paulsen, Bernd Simon
  • Patent number: 9271761
    Abstract: A bone anchoring device for securement to a bone. The device includes an anchor, a receiver, a retainer and an insert. The receiver includes a seating surface defining a cavity communicating with the exterior of the receiver through a first opening configured to receive the connection head of the anchor therethrough. The retainer includes at least two discrete retaining members configured to engage with the receiver seating surface when they are captured between the connection head and the seating surface. The insert is disposed within the receiver and configured to frictionally engage the connection head. The insert includes a main body and at least one pin protruding from the main body, for circumferential insertion between two adjacent retaining members of the retainer.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 1, 2016
    Assignee: Zimmer Spine
    Inventors: Georges Legallois, Karl Belliard, Nicolas Bidegaimberry, Thomas Bouvry
  • Patent number: 9220540
    Abstract: A bone anchoring device, includes a receiving part for receiving a rod-shaped implant element, the receiving part having a first bore coaxial with a longitudinal axis and extending from a first end of the receiving part, and a recess extending from the first end to accomplish insertion of the rod-shaped implant element. The device further includes a bone screw having a threaded section for insertion into the bone and being fixed at or positionable at a second end of the receiving part and a fixation element provided to the first bore to fixate a rigid section of the rod-shaped implant element. The rigid section of the rod-shaped implant element has a first width, and the recess of the receiving part has a second width. The second width is larger than the first width, such that the recess may accommodate a stepped portion of the rod-shaped implant element that has an increased thickness.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: December 29, 2015
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Jürgen Harms
  • Patent number: 9149299
    Abstract: Spinal implant comprising a quick closure (4) for securing a connecting element (2) in a bone screw (1) where the quick closure (4) is rotatively attachable in the clockwise or counterclockwise direction and lockable such as to be able to take up torques applied to the bone screw (1) while preserving the bone anchorage from manipulative stress.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 6, 2015
    Assignee: SPINESAVE AG
    Inventor: Stefan Freudiger
  • Patent number: 9131962
    Abstract: Spine stabilization systems are disclosed. One spine stabilization system includes a bone screw assembly including a coupling member and a screw member received therein. The coupling member includes a pair of extension elements that form a pair of slots. The slots include bottom angled surfaces. An angled wedge member having a substantially horizontal bottom surface and an angled top surface is delivered on top of the screw member within the coupling member. A rod member can be delivered down the coupling member such that it rests on the slots and on top of the angled wedge member. A locking assembly comprising a cap member and set screw can be delivered down the coupling member to secure the rod member to the coupling member. The rod member and locking assembly components can be delivered through a single incision and at a same or similar angle as the screw member during surgery.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: September 15, 2015
    Assignee: GLOBUS MEDICAL, INC.
    Inventors: Douglas Cahill, Andrew Lott, Khiem Pham, Edward Karpowicz
  • Publication number: 20150134015
    Abstract: The invention comprises a method for fixating bones in the foot by aligning the bones in their desired position, inserting a screw in the aligned bones, inserting at least one transverse element near the head or tip of the screw, and tightening the screw to compress the bones. The screw comprises a shaft having first and second ends with spirally wound screw threads beginning near the first end and extending along the shaft. Advantageously, the screw is cannulated and screw threads are formed on an interior surface of the cannulation. Illustratively, the transverse elements may be staples, open-ended washers, or open-ended nuts. Reduction instruments and drill guides used in the invention are also disclosed.
    Type: Application
    Filed: January 19, 2015
    Publication date: May 14, 2015
    Applicant: Extremity Medical, LLC
    Inventor: Vincent James Sammarco
  • Patent number: 9017390
    Abstract: A polyaxial bone anchoring device includes a bone anchoring element having a shank and a head, a head receiving part having a first end, an open second end, and a hollow interior portion for receiving the head therein, a locking ring configured to be mounted around the head receiving part and having a rod receiving portion, a cap configured to be connected to the head receiving part, the cap having a central axis and two opposite legs extending in a direction of the central axis, and a locking element configured to extend from the cap to lock relative positions of the bone anchoring element and an inserted rod relative to the head receiving part, wherein the cap is rotatable relative to the head receiving part between a first position in which the cap is movable and a second position in which the legs engage the head receiving part.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 28, 2015
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Bernd Fischer
  • Patent number: 9011495
    Abstract: The present teachings provide one or more surgical implements for repairing damaged tissue, such as in the case of a spinal fixation procedure. A bone anchor is provided. The anchor can include a bone fastener. The bone fastener can include a head and a second end adapted to engage an anatomy. The bone fastener can extend along a longitudinal axis. The anchor can also include a coupling arrangement coupled to the head of the bone fastener so that the bone fastener is rotatable about the longitudinal axis to define a first plane of motion. The anchor can further include a saddle, which can be coupled to the coupling arrangement. The saddle can be movable relative to at least one of the bone fastener and the coupling arrangement to define a second plane of motion.
    Type: Grant
    Filed: May 8, 2011
    Date of Patent: April 21, 2015
    Assignee: EBI, LLC
    Inventors: Christopher Shaffrey, Matthew L. Keiser, Laurie G. Sanders, Gretchen Dougherty Shah
  • Patent number: 9011501
    Abstract: A bone fixation device includes a first element extending from a first head to a first shaft along a first longitudinal axis and having a first channel extending therethrough. The first head rests against a portion of bone adjacent to a first hole through which the first shaft is inserted. A second element includes a second shaft extending along a second longitudinal axis to a second head and having a second channel extending therethrough, the second head resting against a portion of bone adjacent to a second hole through which the second shaft is inserted. The second channel is dimensioned to receive the first shaft therein. A tensioning element is insertable through the first and second channels so that tension applied at a second end thereof imparts a compressive force to the a bone into which the first and second elements are inserted.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: April 21, 2015
    Assignee: Depuy Synthes Products, Inc.
    Inventors: George Mikhail, Glen Pierson
  • Patent number: 9005260
    Abstract: A receiver body for an elongated spinal fixation element includes a housing portion with one or more flanges extending outwardly. In one embodiment, the receiver body includes first and second flanges extending outwardly from the housing portion. The housing portion includes first and second slots that form a passage through the housing portion. Each flange has a circular perimeter edge and a chamfered section, the chamfered section having a notched undercut for engagement with an instrument. In another embodiment, the receiver body includes a housing portion having a circular flange with a first chamfered section and a second chamfered section diametrically opposite the first chamfered section. The first chamfered section has a first aperture that opens out beneath the flange, and the second chamfered section has a second aperture that opens out beneath the flange. The first and second apertures form diametrically opposed pivot-attachment points for an instrument.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: April 14, 2015
    Assignee: Aesculap Implant Systems, LLC
    Inventors: Andrew Dauster, Matthew Kovach, Paul Weaver
  • Patent number: 8998958
    Abstract: An instrument includes components configured to secure a locking device inside a rod fixation assembly. In one embodiment, an instrument includes an outer sleeve and a pusher member arranged telescopically within the outer sleeve. A drive assembly cooperatively engages the pusher member. In another embodiment, an instrument includes an outer sleeve, a pusher member arranged telescopically within the outer sleeve, and a pair of drive assemblies. A first drive assembly engages the pusher member to distally advance the pusher member under a first loading. A second drive assembly also engages the pusher member to distally advance the pusher member under a second loading, the second loading being substantially greater than the first loading. In another embodiment, a method for reducing and locking a spinal rod includes the step of advancing a locking element while the locking element is retained in a fixed orientation.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 7, 2015
    Assignee: Aesculap Implant Systems, LLC
    Inventors: Andrew Dauster, Matthew Kovach, Paul Weaver
  • Patent number: 8998965
    Abstract: A bone anchoring device includes a receiving part for receiving a rod, the receiving part having a first bore coaxial with a longitudinal axis and a second bore. The bone anchoring device also includes an anchoring element having a first end for insertion into the bone and a second end positionable within a second bore, the second end having a spherically shaped surface portion. The bone anchoring device further has a locking device provided to the second bore of the receiving part. The locking device protrudes from an inner wall of the second bore and engages with a recessed surface portion of the second end of the anchoring element, such that the anchoring element is pivotable relative to the receiving part around a single axis of rotation. The locking device may comprise pins inserted into through holes formed in the receiving part, which engage with the recessed surface portion of the second end.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: April 7, 2015
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 8998966
    Abstract: A screw system includes a screw and a washer assembly captive to the screw. The washer assembly is polyaxially pivotable relative to the screw. The screw may be freely rotated in one direction relative to the washer assembly, but frictionally binds with the washer assembly when rotated in a second direction. Various auxiliary fixation features are disclosed.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 7, 2015
    Assignee: OsteoMed, LLC
    Inventors: Marc Yap, Rob D. Dickerman, Matthew T. Bennett, Charles R. Forton, Andrew R. Fauth, Joel R. Helgerson, Shresta Marigowda
  • Publication number: 20150094776
    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: Application
    Filed: September 17, 2014
    Publication date: April 2, 2015
    Inventors: Lutz Biedermann, Jürgen Harms
  • Patent number: 8992587
    Abstract: A surgical implant comprising a screw element having a screw head, a first thread having a first thread pitch, a second thread having a second thread pitch and an intermediate portion coupling the first and second thread pitches with the first and second thread pitches being different. The implant has a buttressing head associated with the first thread, and it is dimensioned to be larger than a diameter of the first threads to provide external buttressing as the first and second threads compress a first bone and a second bone together.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: March 31, 2015
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8986356
    Abstract: The present teachings provide one or more surgical implements for repairing damaged tissue, such as in the case of a spinal fixation procedure. A uniplanar bone anchor system for a fixation procedure is provided. The system can include a bone fastener including a head with a bearing surface and a shaft adapted to engage an anatomy. The system can also include a saddle, which can include a first bore formed about a longitudinal axis that receives the bone fastener and a coupling bore defined transverse to the longitudinal axis. The system can also include a coupling system, which can have a second bearing surface. The coupling system can be received through the coupling bore such that the second bearing surface of the coupling system can contact the bearing surface to permit the bone fastener to move in only one plane.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 24, 2015
    Assignee: EBI, LLC
    Inventor: David Barry
  • Patent number: 8986355
    Abstract: Facet fusion implants with various body geometries are provided. The bodies of the facet fusion implants can be configured to minimize migration of the implants when the implants are inserted into facet joints. Surgical methods and accompanying surgical instrumentation for inserting the facet fusion implants into facet joints are provided.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: March 24, 2015
    Assignee: DePuy Synthes Products, LLC
    Inventors: Nicholas Angert, Benjamin Barrall, David Chow, Justin Coppes, Lauren Pietruszynski
  • Publication number: 20150073488
    Abstract: The present invention is directed to a spinal implant system that incorporates unique snap, or spring loaded, features to assist the surgeon in the placement of screws, rods, hooks and transverse connectors. The poly-axial movement also uses a more direct loading lower saddle into the bone screw to improve locking of the construct.
    Type: Application
    Filed: March 5, 2014
    Publication date: March 12, 2015
    Inventor: James A. Rinner
  • Patent number: 8974507
    Abstract: A bone screw system includes a bone screw and a connecting device for coupling the bone screw to an elongate rod-shaped member. The bone screw has proximal and bone-engaging portions disposed at opposing ends relative to a long axis of the screw. The proximal portion includes a proximal locking feature that extends away from the long axis in a radial direction that is perpendicular to the long axis. The connecting device includes first and second coupling portions at opposing ends relative to the long axis when the coupling device is assembled to the bone screw. The first coupling portion defines an opening for receiving the proximal portion of the bone screw. The second coupling portion is configured to receive the rod-shaped member. The connecting device also includes a restraining feature that frictionally resists rotational motion of the connecting device relative to the bone screw.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: March 10, 2015
    Assignee: Eisertech, LLC
    Inventor: Lukas Eisermann
  • Patent number: 8974501
    Abstract: A distal loading receiver for a polyaxial bone screw includes a body member having a circumferential wall defining a bore disposed longitudinally through the body member. A skirt depends from a distal end of the body member. The skirt defines one or more distally opening slots and an abluminal surface of the skirt includes one or more transverse ribs proximate to a distal end of the skirt. A retaining ring includes a luminal surface having one or more transverse recesses proximate to a distal end of the luminal surface and one or more walls extending inwardly from the luminal surface. The slots accommodate the walls and the recesses accommodate the ribs to attach the body member to the retaining ring when the distal end of the skirt is inserted into a proximal end of the retaining ring.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: March 10, 2015
    Assignee: Alphatec Spine, Inc.
    Inventor: Sean Dikeman
  • Patent number: 8968367
    Abstract: Compression-distraction spinal fixation systems, and methods of performing compression-distraction spinal fixation, are provided that include screw-rod constructs having a ratcheting mechanism. Bone screws of the screw-rod constructs can have a pawl that engages ratchet teeth on the rod of the screw-rod construct. The bone screw can be unidirectionally ratcheted along the length of the rod to apply compressive or distractive forces. Tools for manipulation of the screw-rod constructs are also provided, which tools include distal tips configured to engage the bone screws.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: March 3, 2015
    Assignees: The Johns Hopkins University, Neuraxis Technologies LLC
    Inventors: Ryan M. Kretzer, Bryan W. Cunningham, Jeffrey Gordon