Radially Expandable Patents (Class 606/313)
  • Patent number: 9999416
    Abstract: This present invention relates to medical procedures and force application distraction devices for internal joint distraction.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 19, 2018
    Assignee: Arthrex, Inc.
    Inventors: Bryan Kelly, Reinhold Schmieding, Ricardo Albertorio, Kenneth Helenbolt, John P. Gualdoni
  • Patent number: 9168147
    Abstract: A screw assembly and a spinal implant. The screw assembly includes a screw with a head and a shaft where a screw retention member is positioned beneath the head of the screw and substantially surrounds the shaft of the screw. The screw retention member is formed from a temperature-sensitive material. The screw retention member has a first contracted position adapted for inserting the screw through at least one hole in the spinal implant and a second expanded position adapted for retaining the screw within the at least one hole in the spinal implant. The screw retention member may be in the form of a coiled spring or a collar having a plurality of tabs.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: October 27, 2015
    Assignee: Titan Spine, LLC
    Inventors: Chad J. Patterson, Peter F. Ullrich, Jr.
  • Patent number: 9023088
    Abstract: A fixation device comprises a biodegradable inner core extending along a longitudinal axis from a distal tip to a proximal end in combination with a sleeve surrounding the core along a portion of a length thereof and comprising a thermoplastic polymer formed of a material which softens and expands into surrounding bone tissue when activated by an energy source.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: May 5, 2015
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Cyril Voisard, Nicolas Bouduban
  • Patent number: 8974508
    Abstract: Expandable fixation assemblies, expandable cranial fixation assemblies, and expandable intervertebral implant assemblies are provided for securing structures to bone and for securing bones and/or bone segments with respect to each other. An expansion member can be moved through at least a portion of an expandable fixation body, thereby causing expansion of the expandable fixation body, such that bone engagement features of the expandable fixation body engage surrounding structure, such as bone.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: March 10, 2015
    Assignee: DePuy Synthes Products, LLC
    Inventors: Kai Stephan, Bryan Griffiths, Samuel Leuenberger, Robert Schoutens, Marcello Memmolo, Daniela Pricope, Rainer Ponzer, André Schlienger
  • Patent number: 8956410
    Abstract: A radially expandable sheath is provided having a substantially closed distal end with at least two sidewalls extending proximally therefrom and defining a central lumen. Each sidewall can have a substantially concave outer surface adapted to seat a graft member, and each side wall is at least partially separated by a longitudinally oriented slot that extends from a proximal end along a substantial length of each sidewall. The slot preferably terminates at a position just proximal to the distal end. The device can also include a sheath expander that is adapted to be disposed in the central lumen of the radially expandable sheath and that is configured to flex the sidewalls to radially expand the sheath so as to fix a graft member within a bone tunnel.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: February 17, 2015
    Assignee: DePuy Mitek, LLC
    Inventors: Lisa M. Donnelly, Nathan Cauldwell
  • Patent number: 8936627
    Abstract: Expandable support devices for tissue repair are disclosed. The devices can be used to repair hard or soft tissue, such as bone or vertebral discs. A method of repairing tissue is also disclosed. Surgical devices and methods for adjusting (e.g., removing, repositioning, resizing) deployed orthopedic expandable support devices are also disclosed. The expandable support devices can be engaged and surgically implanted by an engagement device and affixed to bone to provide stability and support for the devices. The expandable support devices are attachable to spinal fixation devices such as screws or plates, and may be used to support such devices when placed in weakened or damaged areas of bone.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: January 20, 2015
    Assignee: Alphatec Spine, Inc.
    Inventors: Stephen H. Hochschuler, Skott E. Greenhalgh, John Paul Romano, Robert A. Kiefer, Wade Kevin Trexler, Michael P. Igoe
  • Publication number: 20150005770
    Abstract: Methods of reducing device drag on implantable articles are disclosed herein. The methods include coating the contact surfaces of implantable articles with bioabsorbable lubricating coatings.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 1, 2015
    Inventors: Mark B. Roller, Kevin L. Cooper, Jo Hays, Jenny J. Yuan, Joseph H. Contiliano
  • Patent number: 8911484
    Abstract: A multi-axial expandable pedicle screw includes a hollow screw having a spherical shaped end for connecting with an adapting piece in the form of a universal joint structure. The hollow screw further includes a tip shaped end, and a bore formed inside the hollow structure having a taper shaped tip. Expansion gaps are formed in the hollow screw to uniformly set up two, three, four or more anterior fins on the hollow screw extending upward along its axial direction, from its tip to the bore. The hollow screw is configured to receive an inner needle disposed in the bore. This pedicle screw is easy to operate and provides a high degree of control in screw expansion with increased stability and reliability. At the same time, this pedicle screw reduces the occurrence of screw loosening, and screw pull-out events, and also reduces failure rates of spinal surgeries.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: December 16, 2014
    Inventors: Wei Lei, Zixiang Wu
  • Patent number: 8876874
    Abstract: The distal bone screw segment of a bone screw system is driven into bone. In a first state, the assembly permits relative motion between its component parts in order to facilitate the placement and correct alignment of an interconnecting rod that is used to couple multiple bone screw systems and/or other orthopedic devices. In a second state, the assembly provides relative immobilization between the assembly components and the inter-connecting rod.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: November 4, 2014
    Inventor: M. Samy Abdou
  • Patent number: 8845702
    Abstract: A bone anchoring element includes a shaft for anchoring in a bone, the shaft having a tubular body. The shaft comprises a plurality of barb elements, wherein each barb element is formed as continuous one-piece part with the tubular body. Each barb element is moveable between a first position adjacent to the tubular body and a second position further from the tubular body than the first position. The barb elements are arranged along at least one helical line around an axis of the shaft.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 30, 2014
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Wilfried Matthis, Lutz Biedermann
  • Patent number: 8840677
    Abstract: The present invention provides a system, device, instruments and methods for inserting and/or improving the holding strength and purchase of a bone screw, bone pin, or bone dowel in bone. Embodiments include monolithic allograft tissue forms, multi-piece allograft tissue forms, distally expandable portions, partially and fully demineralized portions, and flexible connecting portions. Advantages of the allograft tissue forms of the present invention include improved pedicle screw blackout strength and improved filling of bone voids. Methods for making and instruments and techniques for inserting the augmentation device, system and screws or pins are also disclosed.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: September 23, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Shreedhar Kale, Dennis Chien, Robert Delurio, Curtis Compton
  • Patent number: 8834543
    Abstract: Apparatuses for attaching tissue to bone are provided. In one exemplary embodiment, the apparatus includes an expandable body defining a bore, an expander pin having a shaft sized to be received in the bore of the expandable body, and an insertion shaft slidingly disposed in the bore of the expandable body and in a bore of the expander pin. The body is configured to expand laterally into and attach to bone when the expander pin is driven into the expandable body. The body includes a proximal main member having a distally extending threaded projection and a harder, distal tip member having a threaded recess in a proximal surface thereof such that the projection is threadedly interengageable with the recess. The expansion of the body by way of the pin can occur when the proximal main member and distal tip member are threadedly engaged. The insertion shaft is releasably secured to the expandable body and extends distally beyond the expandable body.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: September 16, 2014
    Assignee: DePuy Mitek, LLC
    Inventors: Dennis McDevitt, Vincent P. Novak, Geary H. Munroe, Thomas E. Borg
  • Patent number: 8834542
    Abstract: A device and method for fixating soft tissue to hard tissue with the aid of a suture anchor and a suture or with the aid of a headed anchor, wherein the anchor is forced into the hard tissue and then anchored therein by in situ liquefaction of a material having thermoplastic properties. The device includes a vibration tool and the anchor and possibly a support element, wherein the anchor includes an anchor foot and a thermoplastic sleeve. The thermoplastic sleeve includes the material having thermoplastic properties. The anchor foot has a distal end suitable for being forced into hard tissue and it is connected to the distal end of the vibration tool and the thermoplastic sleeve sits on a proximal face of the anchor foot , the vibration tool and/or a proximal portion of the anchor foot extending into or through the thermoplastic sleeve.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: September 16, 2014
    Assignee: Sportwelding GmbH
    Inventors: Jörg Mayer, Mario Lehmann
  • Patent number: 8740954
    Abstract: The present invention relates invention relates to devices and methods for the fixation and stabilization of orthopedic fractures and more specifically to stabilization of compression fractures of spinal vertebrae. The systems comprise cannulated orthopedic screws and mechanical expandable implants introducible through the lumen of such screws. In certain embodiments the cannulated implants are expandable within an intraosseous space to introduce scaffold-like structures such that subsequent introduction of a bone cement forms a composite in situ. The devices and methods are also particularly useful for stabilizing the orthopedic screws.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: June 3, 2014
    Assignee: Integral Spine Solutions, Inc.
    Inventors: Eman K. R. Ghobrial, Bassem Georgy
  • Patent number: 8734497
    Abstract: A removable anchoring pedicle screw includes an implant mounting screw, an anchor screw, and a nose piece. The anchor screw is configured to be rotated relative to the implant mounting screw such that the nose piece engages an expandable anchor. The expandable anchor is disposed between the implant mounting screw and the nose piece such that rotation of the anchor screw relative to the implant mounting screw causes expansion of the expandable anchor.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: May 27, 2014
    Assignee: The University of Toledo
    Inventors: Vijay K. Goel, Aaron Matyas
  • Publication number: 20140107713
    Abstract: A subtalar implant (1) for stabilising the subtalar joint in the human foot includes a longitudinal axis (L) extending between a front end (13) and a rear end (14), wherein a first anchor portion (2) is arranged to the side of the longitudinal axis (L) and a second anchor portion (3) is arranged to the side of the longitudinal axis (L). In accordance with the invention, a spreading mechanism (5) to spread apart the implant as a result of relative displacement of the first and second anchor portion (2, 3) at an angle to the longitudinal axis (L) are provided.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: NORMED MEDIZIN-TECHNIK GMBH
    Inventors: Uwe Pech, Vladko Kotuljac
  • Patent number: 8696719
    Abstract: The various embodiments disclosed herein relate to implantable devices for the treatment of structural bone and joint deformity, including hallux valgus. More specifically, the various embodiments include systems, devices, and methods for implantation of an implantable device having at least one bone anchor with deployable prongs for treating such deformity.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: April 15, 2014
    Assignee: Tarsus Medical Inc.
    Inventors: Trevor Lofthouse, Paul M. Sand, Nick Mourlas, John Avi Roop
  • Patent number: 8696716
    Abstract: Surgical anchoring systems and methods are employed for the correction of bone deformities. The anchoring system and its associated instrument may be suitable for surgical repair of hallux valgus, tarsometatarsal sprains, ankle ligament reconstruction, spring ligament repair, knee ligament reinforcement, acromioclavicular sprains, coracoclavicular sprains, elbow ligament repair, wrist and hand ligamentous stabilization or similar conditions. The anchoring system may include a fixation system for anchoring two or more sections of bone or other body parts and a system for aligning of one section relative to another section.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: April 15, 2014
    Assignee: ProActive Orthopedics, LLC
    Inventors: George Kartalian, Ali Siam
  • Patent number: 8696721
    Abstract: Devices are disclosed for treating the vertebral column. A fastener having a fastener head comprising a screw lumen and fastener shaft is provided. In some embodiments, an external groove and one or more openings between the screw lumen and an external groove are provided. An expandable member is located at least partially in the external groove and protrudes through the one or more openings into the screw lumen. Alternative fixation systems and screw retaining assemblies are also contemplated.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Spinal Elements, Inc.
    Inventor: Jason Blain
  • Patent number: 8696720
    Abstract: A dental implant assembly comprises an elongated tubular body adapted for securement within a bore in a jaw bone of a patient. The body has an expandable bottom portion. The expandable bottom portion has an outer thread on an outer surface. The outer thread has a major diameter that gradually increases from a first major diameter near a bottom end of the body to a second major diameter near a top end of the bottom portion. The top end of the bottom portion is located between the bottom top ends of the body. An expander at least partially extends into the bottom end of the tubular body. The expander is configured to be advanced from a first position in which the bottom portion of the body is not expanded to a second position in which the expander forces the bottom portion of the body to expand.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: April 15, 2014
    Inventor: Sargon Lazarof
  • Patent number: 8672985
    Abstract: A bone fastener for stabilizing bone fragments includes a single or multiple components coupleable with one another and displaceable to a locked position of the bone fastener.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: March 18, 2014
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: David Chow, Perry Geremakis, Erik O. Martz, Stephen Howard Hochschuler, Daniel E. Rosenthal, Steven Annunziato, Larry C. Johnston
  • Patent number: 8657860
    Abstract: A bone anchoring element is provided which has a shaft for anchoring in a bone. The shaft includes a tubular body having two open ends. At least one barb element is connected to the shaft. The barb element is cut into the tubular body. The barb element includes a free end and a base connecting the barb element to the shaft. The barb element has a first portion adjacent to the base and a second portion adjacent to the free end. The second portion is inclined relative to the first portion in a direction off said shaft.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: February 25, 2014
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 8636784
    Abstract: An attachment device with a radially expandable section is disclosed. The attachment device can have helical threads, for example, to facilitate screwing the attachment device into a bone. Methods of using the same are also disclosed. The attachment device can be positioned to radially expand the expandable section in cancellous bone substantially surrounded by cortical bone.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: January 28, 2014
    Assignee: Stout Medical Group, LP
    Inventors: E. Skott Greenhalgh, John-Paul Romano, Michael Paul Igoe, Robert A. Kiefer, Wade Kevin Trexler
  • Publication number: 20140012336
    Abstract: A bone anchor includes an anchor member including a first material, and having a tubular section extending along a longitudinal axis, a region configured to expand radially outwards from the longitudinal axis, and a bone engagement structure projecting from at least a portion of the expandable region of the tubular section, and a core member including a second material, and configured for insertion into and connection to the anchor member. When the core member is in the anchor member and is actuated relative to the anchor member, the tubular section is adjustable between a first position where the expandable region of the tubular member has a first length and a first maximum diameter, to a second position where the expandable region of the tubular member has a length shorter than the first length and a maximum diameter greater than the first maximum diameter.
    Type: Application
    Filed: June 18, 2013
    Publication date: January 9, 2014
    Inventors: Lutz Biedermann, Wilfried Matthis
  • Patent number: 8613756
    Abstract: A suture anchor is disclosed having an outer body with an axial bore which receives and inner body for rotation. Suture passes between the inner body and outer body and rotation of the inner body wraps the suture thereabout locking the suture thereto. Rotation of the inner body also effects radial expansion of at least a portion of the outer body to engage to anchor into a bone hole.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: December 24, 2013
    Assignee: DePuy Mitek, LLC
    Inventors: Jose E. Lizardi, Mehmet Ziya Sengun
  • Publication number: 20130310883
    Abstract: A threaded bone fastener including a threaded shank, a head extending from the shank, one or more expandable elements, each having a distal end or a proximal end pivotally attached to the shank, the expandable elements being expandable radially outwards from the shank and contractible radially inwards towards the shank, wherein expansion and contraction of the expandable elements does not change an overall length of the shank.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 21, 2013
    Inventors: Mark M. Levy, Shimon Spector
  • Patent number: 8574275
    Abstract: A fixation device for delivery of biological material between soft tissue and bone. The fixation device includes an anchor having a first longitudinal bore and a first radial extending delivery bore and an insert having a second longitudinal bore and a second radial extending delivery bore. The first and second radial extending bores are aligned and positioned relative to a head of the anchor to deliver the biologic material between the soft tissue and the bone.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 5, 2013
    Assignee: Biomet Sports Medicine, LLC
    Inventors: Kevin T. Stone, Gregory J. Denham
  • Patent number: 8551171
    Abstract: Methods of stabilizing the sacroiliac joint by placing an expandable device in the joint to generate laterally opposing forces against the iliac and sacral surfaces of the SI joint to securely seat the device in a plane generally parallel to the SI joint. The expandable device is coated with or otherwise contains a bone material to promote fusion of the joint. The expandable device used in methods of the present invention can be, for example, an expandable cage, a balloon, a balloon-expandable stent or a self-expanding stent.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: October 8, 2013
    Assignee: Globus Medical, Inc.
    Inventors: Donald Johnson, Daniel Butler
  • Patent number: 8545499
    Abstract: An expandable rod is provided that is sized for insertion into a patient's bone. A method for using the expandable rod to prepare the patient's bone to receive an orthopedic implant is also provided. The expandable rod is adjustable between a first, contracted state and a second, expanded state, the expansion member expanding radially outwardly from the contracted state to the expanded state.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: October 1, 2013
    Assignee: Zimmer, Inc.
    Inventors: Antony J. Lozier, Daniel P. Murphy, Justin J. May, Shanon N. Roberts, Andrew L. Gray, Nicolas J. Pacelli
  • Publication number: 20130226250
    Abstract: The present invention is a systematic displacement bone screw having minor and major thread diameters that are constant instead of tapered. The crests at the tip of the screw are narrower than the crests near the screw head resulting in a smaller distance between the thread flanks, which displaces and/or compresses more bone matter. Because the major diameter remains constant, the diameter of the hole made by inserting the screw is consistent over the length of the screw allowing the screw to be adjusted without loosening. The systematic displacement screw with varying crest thicknesses also avoids the need to use a larger diameter screw in place of a removed screw during a repair procedure. Rather than increasing the size of the hole, the systematic displacement screw can be used for the both the original screw and the replacement screw.
    Type: Application
    Filed: April 11, 2013
    Publication date: August 29, 2013
    Inventor: James A. Rinner
  • Patent number: 8486121
    Abstract: A bone anchoring device includes a shaft for anchoring in a bone and a head, the shaft including a first section having a plurality of barb elements, the barb elements being elastically deformable relative to the body of the shaft, and a second section including a bone thread for engagement with the bone. The first section is located near the tip of the shaft and allows insertion by pushing whereas the second section provides enhanced resistance against pull-out.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: July 16, 2013
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Minh Q. Dinh, Scott Carpenter, Raghuveer Basude, Tracy Lopes, Scott M. Russell
  • Patent number: 8480718
    Abstract: Orthopedic implants include a device that is non-rigid, i.e., flexible and/or malleable, in a first form for insertion into a desired in vivo site, and then transformable into a rigid, or hardened, form for providing a load-bearing function or providing other structural and/or mechanical function after implant. The device includes a biocompatible sheath and a curable material sealed within the sheath. The curable material is provided in a first form that provides flexibility to the device and is structured to rigidize in a second form after application of a quantity of an initiating energy to the material. Related methods and kits are also provided.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: July 9, 2013
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Dimitri Protopsaltis, Hai H. Trieu, Jeff R. Justis, Michael C. Sherman
  • Patent number: 8414630
    Abstract: A bone screw includes a head portion and shank portion. The shank portion includes a regularly outwardly expanding threaded portion.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: April 9, 2013
    Inventor: Marc Evan Richelsoph
  • Patent number: 8398691
    Abstract: A surgical device for treating the pathology of flat feet, the device comprising an outer casing; and an expansion member suitable for moving inside said outer casing in a compression direction, for causing said outer casing to expand radially; the surgical device being provided with non-return check means shaped to allow the expansion member to move in the compression direction towards an operating position inside the outer casing and to oppose movement of the expansion member in the reverse direction once said operating position is reached, so as to prevent the expansion member from being expelled.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: March 19, 2013
    Assignee: Newdeal S.A.S.
    Inventors: Ramon Viladot Perice, Greta Dereymaeker, Patrice Francois Diebold, Beat Hintermann
  • Patent number: 8388660
    Abstract: A bone anchor is driven into the pedicle portion of the vertebral body until a shoulder protrusion within the proximal aspect of the anchor abuts the bone surface and prevents further anchor travel into the bone. A feature within the distal aspect of the anchor is actuated producing the emergence of a distal shoulder protrusion. The latter directly abuts the distal aspect of the pedicle at the pedicle/vertebral body interface. Using this method, the anchor captures the pedicle portion of bone and contains it between the proximal and distal shoulder abutments.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: March 5, 2013
    Inventor: Samy Abdou
  • Publication number: 20130053902
    Abstract: Methods and apparatus for immobilizing a synovial joint, such as a sacroiliac (SI) joint are disclosed. In one form, a multipiece fixation device, such as a dowel, includes multiple expandable fasteners that are configured to fix adjacent bones of a synovial joint with respect to one another. The expandable fasteners include expansion portions that are expanded radially via insertion of another expandable fastener or an expansion device to fix the expandable fasteners to the bone. The fixation device may be configured to provide for compression or distraction of the bones of the synovial joint while at the same time stabilizing the joint.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Inventor: Jeffrey L. Trudeau
  • Patent number: 8361130
    Abstract: Various methods and devices are provided for bone screw fixation. In one exemplary embodiment, the methods and devices provide a bone fixation device that includes a receiving head having a recess adapted to seat a spinal rod therein and a shank extending distally from the receiving head. An anti-rotation mechanism can be located distal of a distal end of the receiving head and around a proximal portion of the shank, and it can be configured to interact with bone to prevent rotation of at least a portion of the bone fixation device relative to the bone.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: January 29, 2013
    Assignee: DePuy Spine, Inc.
    Inventors: Erin Daly, Charles M. Bartish, Jonathan Fanger, SeungKyu Daniel Kwak, Andrew E. Medeiros
  • Patent number: 8349010
    Abstract: A graft fixation system for fixing graft material in a bone tunnel includes an expandable fixation member having a graft receiving eyelet disposed proximate its distal end, opposed bone engaging elements disposed about its periphery, and an expansion plug receiving opening defined in its proximal end. The system also includes an expansion plug having a diameter greater than the diameter of the expansion plug receiving opening so that forceble insertion of the expansion plug into the expansion plug receiving opening causes an expansion of the expandable fixation member driving the opposed bone engaging elements apart so as to fix the bone engaging elements, as well as the graft material, in a bone tunnel.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: January 8, 2013
    Assignee: DePuy Mitek, Inc.
    Inventors: Daniel F. Justin, Richard F. Wenstrom, Jr., Andrew S. Levy
  • Patent number: 8292932
    Abstract: A bone anchoring element includes a shaft for anchoring in a bone, the shaft having a tubular body. The shaft comprises a plurality of barb elements, wherein each barb element is formed as continuous one-piece part with the tubular body. Each barb element is moveable between a first position adjacent to the tubular body and a second position further from the tubular body than the first position. The barb elements are arranged along at least one helical line around an axis of the shaft.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: October 23, 2012
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Wilfried Matthis, Lutz Biedermann
  • Publication number: 20120203226
    Abstract: A system and method are for bone fixation. A radially expandable sleeve is inserted over an elongated shaft of a bone screw. The bone screw and radially expandable sleeve are inserted into a transverse opening extending through a bone fixation device positioned in a bone until the radially expandable sleeve is fully housed within the transverse opening. The bone screw is further screwed into the bone relative to the radially expandable sleeve to cause expansion of the radially expandable sleeve within the bone fixation device, thereby locking the sleeve to the bone fixation device.
    Type: Application
    Filed: March 20, 2012
    Publication date: August 9, 2012
    Inventors: André Schlienger, Peter Senn
  • Patent number: 8221479
    Abstract: An insert for receiving a bone screw includes an elongate sleeve having opposed proximal and distal ends and a wall defined by an outer peripheral surface configured for engaging bone and an inner peripheral surface configured for receiving a bone screw extended therethrough. At least one elongate slot is formed in the wall of the sleeve for promoting flexure of the insert. A tool for affixing an orthopedic screw insert within bone tissue includes a socket portion configured and adapted to engage a proximal section of an outer peripheral surface of an orthopedic screw insert. A driver extends distally from the socket portion. The driver is configured and adapted to engage a section of an inner peripheral surface of the orthopedic screw insert distal from the socket portion.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: July 17, 2012
    Assignee: PBJ, LLC
    Inventors: Paul A. Glazer, Robert Jordan, John Haroutunian
  • Publication number: 20120059429
    Abstract: A fixation device comprises a biodegradable inner core extending along a longitudinal axis from a distal tip to a proximal end in combination with a sleeve surrounding the core along a portion of a length thereof and comprising a thermoplastic polymer formed of a material which softens and expands into surrounding bone tissue when activated by an energy source.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 8, 2012
    Inventors: Cyril Voisard, Nicolas Bouduban
  • Patent number: 8128670
    Abstract: A biocompatible surgical fastener, comprising a sleeve and a screw or a pin, which expands when it is implanted in a patient. The sleeve is first implanted in a pre-drilled hole in the operating area of a patient, usually in a bone, cartilage or a bone and cartilage. When a screw or a pin is installed in the sleeve, the sleeve is caused to expand thereby stabilizing the fastener in the operating area. In many embodiments the screw or pin can be removed and reinserted without disturbing the tissue in the operating area. The surgical fastener can be used to repair tissue or to secure other implant devices in a patient.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: March 6, 2012
    Assignee: BioDynamics LLC
    Inventors: James D. Ralph, Stephen L. Tatar, Thomas N. Troxell
  • Publication number: 20120041395
    Abstract: A system for communicating fluid to or from a bone includes an insert. The insert includes a shaft extending between proximal and distal ends of the insert, a fenestration, and an expandable portion coupled to the shaft. The shaft is cannulated along at least a portion of the shaft between the proximal and distal ends. The fenestration is disposed along the cannulated portion of the shaft. Outer surfaces of the expandable portion are configured to expand laterally outward to increase the cross-sectional area of the expandable portion orthogonal to the shaft.
    Type: Application
    Filed: September 7, 2011
    Publication date: February 16, 2012
    Inventor: Patrick J. Sweeney
  • Patent number: 8109936
    Abstract: The invention facilitates the fixation of bone fractures. In particular, the invention relates to a cap that has an inside surface comprising an interface component that is operable to engage a flexible wire. The flexible wire is connected to a head component that engages a first bone fragment. The outside surface of the cap may include cutting threads to facilitate attachment to a second bone fragment. A tensioner may be used to exert tension on the wire, the cap and the head component, thereby drawing the first bone fragment to the second bone fragment. In various embodiments, the cap is a planar disk that has a central hole that restricts backward translation and expands when the cap is translating down a wire.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: February 7, 2012
    Assignee: Orthoip, LLC
    Inventor: Kishore Tipirneni
  • Publication number: 20120010668
    Abstract: An implant includes an elongate body having at least two radially expandable portions in the vicinity of the distal end thereof. An expander is disposed at least partially within the axial bore of the body, the expander including a longitudinal shaft and a tip at the distal end of the shaft. The expander is longitudinally movable between a distal position wherein the tip is positioned distal to the distal end of the body and a proximal position wherein the expandable portions of the body are moved to a radially outward expanded configuration by a camming action of the tip.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventor: Daniel Andrew Shimko
  • Patent number: 8080044
    Abstract: A bone anchoring device includes a shaft for anchoring in a bone and a head, the shaft including a first section having a plurality of barb elements, the barb elements being elastically deformable relative to the body of the shaft, and a second section including a bone thread for engagement with the bone. The first section is located near the tip of the shaft and allows insertion by pushing whereas the second section provides enhanced resistance against pull-out.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: December 20, 2011
    Assignee: Biedermann Motech GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Minh Q. Dinh, Scott Carpenter, Raghuveer Basude, Tracy Lopes, Scott M. Russell
  • Patent number: 8062336
    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: December 19, 2005
    Date of Patent: November 22, 2011
    Assignee: GMEDELAWARE 2 LLC
    Inventors: Daniel J. Triplett, Joel R. Helgerson, Robert W. Hoy
  • Patent number: 8057524
    Abstract: A method and apparatus for reattaching soft tissue to a selected boney structure using a rivet. Generally, a rivet having first portion and a second portion is provided to fully secure a soft tissue in the boney structure. The first portion of the rivet retains the soft tissue via a suture which is threaded through the first portion. The second portion of the rivet has at least one expanding member which engages the boney structure upon contact with the first portion of the rivet. Thus, the soft tissue is fully secured to the boney structure, ensuring proper healing.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: November 15, 2011
    Assignee: Biomet Sports Medicine, LLC
    Inventor: Jason D. Meridew
  • Publication number: 20110238124
    Abstract: A bone screw includes a head portion and shank portion. The shank portion includes a regularly outwardly expanding threaded portion.
    Type: Application
    Filed: April 11, 2011
    Publication date: September 29, 2011
    Inventor: Marc E. Richelsoph