Including A Cover Or Protector Patents (Class 606/302)
  • Patent number: 11013536
    Abstract: A bone fastener assembly including a bone screw, a receiver, a crown, a seat, and a contact pin is provided. The contact pin is formed as a leaf spring resiliently biased in a first position that affords generation of spring force via deformation thereof, and the contact pin acts as a tensioner to ultimately press against a head portion of the screw to aid movement prevention of the head portion relative to the receiver.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 25, 2021
    Assignee: WARSAW ORTHOPEDIC, INC.
    Inventors: Jeffrey Wickham, Mark Dace
  • Patent number: 10966758
    Abstract: A reinforcement cap for use with pedicle screws and rod receptacles (“tulips”) in spinal support systems. The unitary reinforcement cap engages both the internal and the external surfaces of the wall segments of the rod receptacle. In some embodiments, both the internal and the external surfaces are threadably engaged. By doubling the number of threads that are engaged, additional strength and structural integrity are realized over conventional set screw arrangements. Also, because of the unitary construction, wherein an internal set screw portion and an external skirt portion are integral to the reinforcement cap, lateral movement between the set screw portion and the skirt portion is limited. In some embodiments, the threads are of a canted cantilever construction, wherein the interfaces of threadably engaged components are tailored to generate reaction force vectors that mitigate slippage at the threaded interfaces.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: April 6, 2021
    Assignee: Advance Research System, LLC
    Inventor: Hamid R. Abbasi
  • Patent number: 10736668
    Abstract: A spine alignment system is disclosed. The spine alignment system includes a pedicle screw having a longitudinal axis, the pedicle screw having a screw head. The screw head includes a slot having a longitudinal axis that is substantially perpendicular to the longitudinal axis of the pedicle screw. An extension shaft is secured to the pedicle screw, such that a longitudinal axis of the extension shaft is substantially coaxial with the longitudinal axis of the pedicle screw. The spine alignment system also includes a cap having a slot that forms a substantially cylindrical passage with the slot of the pedicle screw head. The substantially cylindrical passage is configured to receive an alignment rod such that alignment of the spine occurs as the rod is translated along the extension shaft to the pedicle screw.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 11, 2020
    Inventor: John A. Heflin
  • Patent number: 10456182
    Abstract: An implant for use with a bone screw for fixation of at least one bone or bone fragments. The implant includes a top end and a bottom end. The implant may also include an exterior surface extending from the top end to the bottom end and a central bore extending from the top end to the bottom end along a central axis. The implant may further include a slot extending through the exterior surface and intersecting with the central bore of the implant. A bone fixation assembly including a fixator and an implant configured to engage the fixator is also disclosed. A surgical kit for bone fixation is also disclosed. The surgical kit includes at least one force distribution member and at least one elongate member.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 29, 2019
    Assignee: PARAGON 28, INC.
    Inventors: Albert Dacosta, Frank Bono, Joshua L. Haddix
  • Patent number: 10130394
    Abstract: A spinal stabilization system may be formed in a patient. In some embodiments, a minimally invasive procedure may be used to form a spinal stabilization system in a patient Bone fastener assemblies may be coupled to vertebrae Each bone fastener assembly may include a bone fastener and a collar. The collar may be rotated and/or angulated relative to the bone fastener. Detachable members may be coupled to the collar to allow for formation of the spinal stabilization system through a small skin incision. The detachable members may allow for alignment of the collars to facilitate insertion of an elongated member in the collars. An elongated member may be positioned in the collars and a closure member may be used to secure the elongated member to the collars.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 20, 2018
    Assignee: Zimmer Spine, Inc.
    Inventors: Michael E. Landry, Larry T. Khoo, Erik J. Wagner, Charles R. Forton, Robert J. Jones
  • Patent number: 10034690
    Abstract: A spine alignment system is disclosed. The spine alignment system includes a pedicle screw having a longitudinal axis, the pedicle screw having a screw head. The screw head includes a slot having a longitudinal axis that is substantially perpendicular to the longitudinal axis of the pedicle screw. An extension shaft is secured to the pedicle screw, such that a longitudinal axis of the extension shaft is substantially coaxial with the longitudinal axis of the pedicle screw. The spine alignment system also includes a cap having a slot that forms a substantially cylindrical passage with the slot of the pedicle screw head. The substantially cylindrical passage is configured to receive an alignment rod such that alignment of the spine occurs as the rod is translated along the extension shaft to the pedicle screw.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 31, 2018
    Inventor: John A. Heflin
  • Patent number: 9901437
    Abstract: A positioning and installation tool for a fixation implant is inserted through a single, simple drill hole and positioned in place. The device controls the degree to which the implant is deployed and prevents accidental disengagement of the device from the implant before deployment has completed. The device also guides the components of the implant involved in active tendon compression at the aperture of the bone tunnel. The implant is deployed simply by rotating a knob, thereby creating an anchor point of high stiffness and fixation strength. When deployment has completed, the inserter is disengaged from the affixed implant by simply pulling a release mechanism.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: February 27, 2018
    Assignee: Cayenne Medical, Inc.
    Inventors: Jordan A. Hoof, Kevin N. Baird, David G. Spilka
  • Patent number: 9788867
    Abstract: A method for treating vertebrae comprises the steps of: connecting at least one fastener with portions of vertebrae; providing a fastener comprising a first portion including a receiver defining an implant cavity and a member disposable with the implant cavity and movable relative to the receiver, and a second portion defining a longitudinal axis and being configured to penetrate vertebral tissue, wherein the receiver is non-pivotable relative to the longitudinal axis and connecting the fastener to the vertebrae; providing a longitudinal element; connecting a first portion of the longitudinal element with the at least one fastener; derotating the vertebrae to a selected orientation; and connecting a second portion of the longitudinal element with the fastener to substantially maintain the vertebrae in the selected orientation. Systems are disclosed.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: October 17, 2017
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Marcel F. Dvorak, Charles G. Fisher
  • Patent number: 9480513
    Abstract: Disclosed is a clamping element for setting a bone fracture. The element comprises a closed contoured body which has a substantially hollow cross-section and is enclosed by a peripheral wall. The contoured body has two opposite receiving portions at the end faces thereof, the receiving portions being intended to receive fixing elements which can be pushed through the body, and has two lateral flanks having angled portions. The peripheral wall of the contoured body is resiliently deformable at least in sections, in particular in the region of the receiving portions on the end faces of same and in the region of the lateral angled portions. A defined resilient behavior of the clamping element can be impressed via the angled portions in such a way that a predetermined tension can be generated between the receiving portions. Also disclosed are a method for producing the clamping element and a setting device for using said clamping element.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: November 1, 2016
    Assignee: HIPP MEDICAL AG
    Inventor: Markus Waizenegger
  • Patent number: 9333010
    Abstract: A bone anchoring device includes an anchoring element having a head, a receiving portion having a first region adjacent to a second end for receiving the head and a recess which is open towards a first end to form two free legs for receiving a rod. The anchoring device further includes a pressure element configured to couple to the head, a first closure element and a second closure element. The first closure element cooperates with the legs to simultaneously fix the rod in the recess and fix the head in the receiving portion, and the second closure element cooperates with the legs, the second closure element acts on the pressure element and on the rod to independently fix the head in the receiving portion and fix the rod in the recess. The first closure element and the second closure element are interchangeable.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 10, 2016
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Wilfried Matthis, Lutz Biedermann
  • Patent number: 9277950
    Abstract: A bone screw that is a low-profile, uniplanar bone screw is provided. The bone screw is for adjusting a position of a rod. The bone screw includes a main body, a rocker and a rod-securing element. The main body has a shaft with a threaded part. The rocker is coupled to and moveable relative to the main body. The rocker is configured to at least partially receive the rod. The rod-securing element is configured to secure the rod between the rocker and the rod-securing element and relative to the main body. The rod-securing element includes a fulcrum serving as an axis of rotation about which the rod rotates.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 8, 2016
    Assignee: Dynamic Spine, LLC
    Inventor: Glenn R. Buttermann
  • Patent number: 9149314
    Abstract: A bone screw that is a low-profile, uniplanar bone screw is provided. The bone screw is for adjusting a position of a rod. The bone screw includes a main body, a rocker and a rod-securing element. The main body has a shaft with a threaded part. The rocker is coupled to and moveable relative to the main body. The rocker is configured to at least partially receive the rod. The rod-securing element is configured to secure the rod between the rocker and the rod-securing element and relative to the main body. The rod-securing element includes a fulcrum serving as an axis of rotation about which the rod rotates.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: October 6, 2015
    Assignee: Dynamic Spine, LLC
    Inventor: Glenn R. Buttermann
  • Publication number: 20150073487
    Abstract: Embodiments of the invention provide a bone screw device including a bone screw with a temporary encasement. In some embodiments, the temporary encasement comprises a biocompatible material that may be an osteoinductive, a hemostatic and or a bacteriocide. Some embodiments include a temporary encasement including a therapeutic. In some embodiments, the temporary encasement comprises a wax. In some embodiments, the screw head is substantially U-shaped. In some embodiments, the screw includes an extension tip extending from the screw shaft. Some embodiments of the invention include a system for percutaneous implantation of a bone screw including a screwdriver shaft rotatably coupled to a screw that includes a temporary encasement. In some embodiments, the screw shaft can be at least partially rotated by the screwdriver shaft. Some further embodiments further include a retractable sleeve at least partially surrounding the screwdriver shaft and the bone screw.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 12, 2015
    Applicant: Globus Medical, Inc.
    Inventors: Neil R. Crawford, Nicholas Theodore, Mitchell A. Foster
  • Patent number: 8900272
    Abstract: A dynamic fixation medical implant includes a longitudinal connecting member assembly having an elongate coil-like outer member and an inner cylindrical core attached to the outer member at only one end thereof. Some assemblies include a second longitudinal connecting member in the form of a rod that is fixed to the inner core and extends outwardly from the assembly. Certain assemblies include a threaded core or threaded inserts that cooperate with a helical slit of the coil-like outer member. Two or more cooperating bone screw assemblies attach to the connecting member assembly. The bone screw assemblies may include upper and lower compression members for affixing to and cradling the coil-like outer member only, allowing relative movement between the outer member and the inner cylindrical core. Press fit or snap-on features attach one end of the coil-like outer member to one end of the inner cylindrical core.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 2, 2014
    Inventor: Roger P Jackson
  • Publication number: 20140249589
    Abstract: First and second bone segments separated by a fracture line or joint can be fixated or fused by creating an insertion path through the first bone segment, through the fracture line or joint, and into the second bone segment. An anchor body is introduced through the insertion path. The distal end of the anchor body is anchored in the interior region of the second bone segment. An elongated implant structure is passed over the anchor body to span the fracture line or joint between the bone segments. The proximal end of the anchor body is anchored to an exterior region of the first bone segment to place, in concert with the anchored distal end, the anchor body in compression, to thereby compress and fixate the bone segments relative to the fracture line or joint.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Inventors: Mark A. REILEY, Justin LERMAN, Richard G. MAULDIN
  • Patent number: 8801761
    Abstract: An implant having a receiver that is adapted to receive a polyaxial screw in the bore and either an internal or external cap. The cap can be an external or internal cap and the implant further has at least one locking aid in the form of at least one of a tactile feedback, a visual feedback or an enhanced fixation between the cap and a rod that is received in the receiver.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 12, 2014
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Publication number: 20140214096
    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: Application
    Filed: January 21, 2014
    Publication date: July 31, 2014
    Inventor: Rudolf Koch
  • Publication number: 20140148860
    Abstract: Disclosed are devices, systems, methods and surgical techniques for the retention of bone screws used in surgical applications. Various aspects of the invention include features to retain bone screws that are placed in an elongated plate and into a bony member to create a rigid construct and stabilize the member for the purpose of fusion. When the screws are placed through the plate, the retention systems can be engaged to prevent the screws from backing out.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 29, 2014
    Inventor: Jim A. Rinner
  • Publication number: 20140094857
    Abstract: The present invention is directed to a pedicle screw fixation system which can be made for either posterior cervical, thoracic, lumbar spine, or elsewhere. With this type of system a surgeon can implant a pedicle screw system utilizing the same instrument set for an open or closed procedure. The system is designed to avoid cross threading and splitting of tulip heard by use of an outer threaded tulip and reducing donut. The system also provides the ability for superior angulation for hard to reach areas that are common in spinal procedures. The system allows for a bio-absorbable part (the reduction donut) that enhances fusion in the coming months after the procedure. With the elongate tulip portion of the system the user is able to avoid the need for other cannula type instruments; the need of additional parts; the need of additional instruments which could introduce bacteria into the patient and the need for fluoroscopy. The system is completely cannulated so as to permit a HOLDING wire driven procedure.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicant: ROLIX Holdings, LLC
    Inventors: Felix Quevedo, Roberto Salvat, Jr.
  • Publication number: 20140046378
    Abstract: Disclosed is a clamping element for setting a bone fracture. The element comprises a closed contoured body which has a substantially hollow cross-section and is enclosed by a peripheral wall. The contoured body has two opposite receiving portions at the end faces thereof, the receiving portions being intended to receive fixing elements which can be pushed through the body, and has two lateral flanks having angled portions. The peripheral wall of the contoured body is resiliently deformable at least in sections, in particular in the region of the receiving portions on the end faces of same and in the region of the lateral angled portions. A defined resilient behaviour of the clamping element can be impressed via the angled portions in such a way that a predetermined tension can be generated between the receiving portions. Also disclosed are a method for producing the clamping element and a setting device for using said clamping element.
    Type: Application
    Filed: January 25, 2012
    Publication date: February 13, 2014
    Applicant: Hipp medical AG
    Inventor: Markus Waizenegger
  • Patent number: 8579947
    Abstract: Present invention depicts a poly-porous (micropore) hollow screws as diffusion chamber filled with core matrix for targeted delivery of growth factors and bone marrow stem cells. The screws comprise at least two parts: the distal part of the screw consists of the tip of the screw made of poly porous material and hollow inside proximally. It has threaded navel attached to the threaded nipple of the distal part of the proximal screw which has the screw head and is made of the solid material of the same kind. The screw head had hexagonal recess targeted for screw driver insertion. Assembly of screw created a chamber in the middle of the screw. The chamber is filled with core matrix consisting of gelatin nano-particles pre-impregnated with BMPs (BMP2/BMP7 for bone or BMP12 for tendon, ligament) and fibrin sealants or Chitosan dispersed with bone marrow stem cells and/or other growth factors. Bioactive protein core material is prepared during the surgery and filled the chamber of the screw by the surgeon.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 12, 2013
    Inventor: Yangguan Wu
  • Patent number: 8512382
    Abstract: The present invention relates to an alternatively monoaxial and polyaxial pedicle or other similar surgical screw that can be used in a polyaxial manner and then locked or otherwise secured at a desired angle or orientation, i.e. used in a monoaxial manner, prior to engaging a rod or other similar stabilization member with the pedicle or other similar surgical screw. In other words, the present invention provides a pedicle or other similar surgical screw that can be selectively used in either a monoaxial or polyaxial configuration, as is desirable in a particular application or at a particular point of a given surgical procedure.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 20, 2013
    Assignee: US Spine, Inc.
    Inventors: Trace Cawley, Chester Sharps, Hans Robert Tuten
  • Publication number: 20130204308
    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: Application
    Filed: March 14, 2013
    Publication date: August 8, 2013
    Applicant: EBI, LLC
    Inventor: EBI, LLC
  • Patent number: 8460306
    Abstract: A clip for retaining a screw on a tip of a screwdriver shaft. The clip comprises a housing that has a first end and a second end and a longitudinal axis extending therebetween. The housing includes a longitudinal bore that is accessible from both the first and second ends of the housing. A pair of jaw members is provided on the housing proximate the first end thereof. The jaw members surround a first portion of the bore and are configured to capture and retain a length of the screwdriver shaft therebetween. A pair of clamping members is formed on the housing proximate the second end thereof. The clamping members surround a second portion of the bore and are configured to capture a head of the surgical screw therebetween. During use, the screwdriver shaft is pushed downwardly and twisted slightly within the bore to engage the head of the screw. The screw is threadably engaged in a pre-drilled hole in the patient's bone.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: June 11, 2013
    Assignee: Pure Dental Logic Inc.
    Inventors: Allan Schaffran, Andy Doug-Lun Wong, Robert G. Dickie
  • Patent number: 8394133
    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: July 23, 2010
    Date of Patent: March 12, 2013
    Inventor: Roger P. Jackson
  • Patent number: 8353941
    Abstract: The invention relates to a sleeve (1), for a bone fixation element, in particular, a wire (10), comprising A) two tubular elements (3; 4), having a common longitudinal axis (2), each with a central drilling (8) of the same diameter (D), an external end (20; 21) and an intermediate end (22; 23) with a front face (28; 29) and B) a shearable connector web (5), fixed to the two tubular elements (3; 4), outside the central drilling (8), by means of which the two tubular elements (3; 4) are axially connected to each other.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 15, 2013
    Assignee: Synthes USA, LLC
    Inventors: Renato Fricker, Hans Gelpke, Romano Matthys
  • Patent number: 8277728
    Abstract: A pre-assembled orthopaedic implant adapted for improved gas sterilization. The implant includes a first component adapted for assembly with a second component such that a mating surface of the first component is in close proximity with a mating surface of the second component. At least one gas conduit associated with the mating surface of the first component facilitates a sterilizing gas to penetrate into and dissipate from the interface defined by the mating surfaces.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: October 2, 2012
    Assignee: Smith & Nephew, Inc.
    Inventors: Richard D. Lambert, Terry W. McLean, David B. Vogel
  • Patent number: 8262708
    Abstract: The present invention is directed to (1) a plating system having multiple and single locking mechanisms for general skeletal use other than in the anterior cervical spine; (2) an orthopedic plating system that permits a pair of bone screws to be inserted into a bone in a crossed over orientation and locked to the plate; (3) a segmentable plating system which can be made to a selected length by the surgeon; and (4) a combination screw-lock-plating system for allowing and/or causing intersegmental compression of bone portions.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: September 11, 2012
    Assignee: Warsaw Orthopedic, Inc.
    Inventor: Gary K. Michelson
  • Patent number: 8241340
    Abstract: A bone anchor system anchors a support member to a bone. The bone anchor system comprises a body having a shank adapted for insertion into a hole in the bone. A head is formed on the shank. The head has a support engagement portion adapted to secure the support member to the body. A passage extends from an entry point to an exit point formed in the body. An expandable member has a flexible wall at least partially enclosing an anchoring chamber. The expandable member has an expanded state configured to conform to a cavity in the bone. The anchoring chamber is in fluid communication with the exit point. The expandable member is adapted to expand when a filler material is provided into the anchoring chamber. A portion of the expandable member conforms to the cavity and the body and the support member are substantially anchored to the bone.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: August 14, 2012
    Assignee: Zimmer GmbH
    Inventor: Markus Froehlich
  • Publication number: 20120143260
    Abstract: A bone screw system is presented. The bone screw system has a fixation element, a receiving element, coupling element, and a compression element. In one aspect, the fixation element is adapted to engage a bone and has a head portion and a threaded shank portion.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 7, 2012
    Inventors: Joshua D. Gunn, Jeffrey S. Radcliffe, Mark W. Jacob
  • Patent number: 8170645
    Abstract: This document discusses, among other things, a fiducial marker kit. In one example, the kit includes a fiducial marker assembly that includes a bone screw base for receiving an imageable marker or locatable divot. A valved protective sleeve prevents debris from accumulating in a receptacle portion of the base, which may otherwise degrade the accuracy of patient registration in an image-guided surgical procedure. In one example, the valve automatically opens or closes upon insertion or removal of a screwdriver or other tool, or a shaft portion of the imageable marker or locatable divot. Various bone screw base and receptacle combinations are also discussed.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: May 1, 2012
    Assignee: Medtronic, Inc.
    Inventors: Matthew S. Solar, Mark Stephen Freas, Thomas L. Bridges, David M. Lee
  • Publication number: 20120022602
    Abstract: A bone instrumentation cover or shield has a hollow cap or casing for encapsulating projecting parts of instrumentation installed in a bone, and a fastener portion for securing it to the bone or to parts of the instrumentation. The instrumentation shield or cover is made of medically safe material, in various sizes, and may be a rigid casing or pliable, stretchable, or adaptable with slidable, displaceable or pleated panels to provide a medically safe physical barrier between projecting parts of bone instrumentation constructs and surrounding bone and soft tissues, in order to minimize local irritation or injury and to provide a barrier to ingrowth from bone and/or fibrous tissues. The cap or casing is readily applied over the instrumentation, then cinched, tied or fastened to the instrumentation or adjacent areas.
    Type: Application
    Filed: September 19, 2011
    Publication date: January 26, 2012
    Inventor: Kenneth Stewart
  • Publication number: 20110257690
    Abstract: A bone anchor assembly is provided, which may be used in cervical, thoracic, lumbar or sacral areas of the spine or other orthopedic locations. The anchor assembly includes a bone anchor, a receiver mounted to the bone anchor, a saddle within the receiver, a spacer within the receiver, and an engaging member. The receiver extends along a central longitudinal axis proximally away from the bone anchor. A rod or other elongated connecting element is received in a passage of the receiver in contact with the saddle, and the engaging member engages the connecting element against the saddle, which engages the saddle against the spacer, which in turn engages the proximal head of the bone anchor in the receiver. The orientation of the saddle in the receiver is adjustable to correspond to the orientation of the connecting element relative to the central longitudinal axis of the receiver.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 20, 2011
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventor: William A. Rezach
  • Patent number: 8025841
    Abstract: A pre-assembled orthopaedic implant adapted for improved gas sterilization. The implant includes a first component adapted for assembly with a second component such that a mating surface of the first component is in close proximity with a mating surface of the second component. At least one gas conduit associated with the mating surface of the first component facilitates a sterilizing gas to penetrate into and dissipate from the interface defined by the mating surfaces.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 27, 2011
    Assignee: Smith & Nephew, Inc.
    Inventors: Richard D. Lambert, Terry W. McLean, David B. Vogel
  • Patent number: 8025685
    Abstract: A bone instrumentation cover or shield has a hollow cap or casing for encapsulating projecting parts of instrumentation installed in a bone, and a fastener portion provided at a lower edge of the cap or casing for securing it to the bone or to parts of the instrumentation where it is installed in the bone. The instrumentation shield or cover is designed to provide a medically-safe physical barrier for implantation between projecting parts of bone instrumentation constructs and surrounding bone and soft tissues, in order to minimize local irritation or injury and also serve as a barrier to ingrowth from bone and/or fibrous tissues. The shield or cover can be formed in a variety of forms, from rigid casing, to semi-pliable sheath-like structure, to soft pouch or cinch sack. The cap or casing is readily applied over the instrumentation, then cinched, tied or fastened to the instrumentation or adjacent areas, using a locking toothed edge, suture ties, suture strings, drawstrings and the like.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: September 27, 2011
    Inventor: Kenneth Stewart
  • Publication number: 20110178558
    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: Application
    Filed: January 15, 2010
    Publication date: July 21, 2011
    Applicant: EBI, LLC
    Inventor: David Barry
  • Publication number: 20110178559
    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 an engagement surface, and a shaft adapted to engage an anatomy. The system can include a saddle, which can include a first bore that receives the bone fastener and a coupling bore defined transverse to the longitudinal axis. The system can include a pressure cap received within the first bore having an engagement surface in contact with the engagement surface of the bone fastener. The system can further include a coupling system that can be received through the at least one coupling bore and can cooperate with the pressure cap to permit the bone fastener to move in only one plane.
    Type: Application
    Filed: July 23, 2010
    Publication date: July 21, 2011
    Applicant: EBI, LLC
    Inventor: David Barry
  • Publication number: 20110152947
    Abstract: An implant having a receiver that is adapted to receive a polyaxial screw in the bore and either an internal or external cap. The cap can be an external or internal cap and the implant further has at least one locking aid in the form of at least one of a tactile feedback, a visual feedback or an enhanced fixation between the cap and a rod that is received in the receiver.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Applicant: X-SPINE SYSTEMS, INC.
    Inventor: DAVID LOUIS KIRSCHMAN
  • Publication number: 20110106174
    Abstract: A bone anchor assembly is provided, which may be used in cervical, thoracic, lumbar or sacral areas of the spine or other orthopedic locations. The anchor assembly includes a bone anchor, a receiver mounted to the bone anchor, a saddle within the receiver, a spacer within the receiver, and an engaging member. The receiver extends along a central longitudinal axis proximally away from the bone anchor. A rod or other elongated connecting element is received in a passage of the receiver in contact with the saddle, and the engaging member engages the connecting element against the saddle, which engages the saddle against the spacer, which in turn engages the proximal head of the bone anchor in the receiver. The orientation of the saddle in the receiver is adjustable to correspond to the orientation of the connecting element relative to the central longitudinal axis of the receiver.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventor: William A. Rezach
  • Publication number: 20110106173
    Abstract: A bone anchor assembly includes a receiver extending along a central longitudinal axis between a proximal end and an opposite distal end and a bone anchor extending from the receiver. The receiver includes a distal portion defining a receptacle opening at the distal end and a pair of arms extending from the distal portion along the central longitudinal axis on opposite sides of a passage. The receiver includes a saddle that is adjustable in the receiver in one plane to accommodate the angle of placement of the connecting element through the receiver. The receiver is adjustable in another plane that is transverse to the adjustment plane of the saddle to better position the receiver to receive the connecting element. The adjustable saddle and receiver reduce the bending or contouring of the connecting element that may be required to position the connecting element in the receiver.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Applicant: Warsaw Orthopedic, Inc.
    Inventors: Gary S. Lindemann, William Benoist, Charles Anthony Dickinson
  • Publication number: 20110071577
    Abstract: A bottom-loading multi-axial bone anchor apparatus is disclosed. The apparatus includes a receiver member, a crown member, a bone anchor and a retaining member. The receiver member defines an upper opening and a lower opening, which may form part of the same opening, a channel, and a groove. The crown member and bone anchor are loaded into the lower opening of the receiver member, and the retaining member fits around the bone anchor and into the groove in the receiver member. The bone anchor is capable of multi-axial positioning with respect to the receiver member. An elongated member is placed in the channel of the receiver member, contacting the crown member, and a compression member is applied via the upper opening. The compression member presses down on the elongated member, which presses down on the crown member and locks the bone anchor between the crown member and the retaining member.
    Type: Application
    Filed: November 24, 2010
    Publication date: March 24, 2011
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventors: B. Thomas Barker, JR., John Stewart Young, Craig Squires, David Brumfield, Chris Johnson, Dennis J. Buchanan
  • Publication number: 20110066191
    Abstract: A thread is located on a cylindrical closure for an open headed medical implant. The thread has a leading surface and a trailing surface that both slope rearwardly from an interior edge to an exterior edge thereof.
    Type: Application
    Filed: November 5, 2010
    Publication date: March 17, 2011
    Inventor: Roger P. Jackson
  • Publication number: 20110040335
    Abstract: A bone fixation element for use in posterior spinal fixation including a pair of spaced apart arms defining a rod-receiving channel and a pair of reduction tabs integrally formed and extending from the arms to facilitate insertion of a rod into the channel. The reduction tabs also preferably include a break-off region so that after the rod has been inserted in the channel, the reduction tabs can be removed leaving behind the bone fixation element and rod. The reduction tabs may also include a cap for coupling a proximal end of the reduction tabs.
    Type: Application
    Filed: April 22, 2009
    Publication date: February 17, 2011
    Inventors: Pascal Stihl, Helmut Rutschmann
  • Publication number: 20100331886
    Abstract: A posterior dynamic spinal stabilization device utilizing a spinal rod, a fixed anchor, a mobile anchor adapted for both translation and pivoting, a mobile anchor-limiting stop affixed to the rod and an optional bumper-type, a rod with at least one limiting stop. It allows predetermined and prescribed interpedicular motion. It allows the use of traditional pedicle screw-rod placement techniques in a flexible system possessing many treatment options using familiar components that are familiar to the surgeon, and can be used on multiple levels (especially to top off) and can transition loads by limiting displacements.
    Type: Application
    Filed: October 27, 2009
    Publication date: December 30, 2010
    Inventors: Jonathan Fanger, Missoum Moumene
  • Patent number: 7850717
    Abstract: A bone anchor including a bone engaging element and an implant engaging element. The bone engaging element includes a first portion formed of a first material and a second portion formed of a second material and extending at least partially along a length of the first portion, and with the second portion of the bone engaging element positioned between the first portion and adjacent bone tissue when the bone engaging element is engaged with the bone to provide an interface with the adjacent bone tissue. In one embodiment, the first portion of the bone engaging element exhibits a first level of rigidity and the second portion exhibits a second level of rigidity less than the first level of rigidity. In another embodiment, the bone engaging element includes external threads, with the second portion of the bone engaging element defining at least a portion of the external threads.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: December 14, 2010
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Jonathan Dewey, Chris Patterson
  • Publication number: 20100312287
    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: Application
    Filed: July 23, 2010
    Publication date: December 9, 2010
    Inventor: Roger P. Jackson
  • Publication number: 20100274295
    Abstract: Embodiments of the invention comprise a medical implant that delivers a therapeutic substance. In some embodiments, a component that delivers a therapeutic substance is a cap secured to a portion of a fastener such as a surgical construct, surgical screw, pedicle screw, spinal rod cross-link, or other connection element or device.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: Warsaw Orthopedic, Inc.
    Inventors: Thomas A. Carls, Newton H. Metcalf, JR.
  • Publication number: 20100241170
    Abstract: An anchor assembly for use with a fixation system for stabilizing one or more spinal bone segments by means of an elongated stabilizer includes an anchor base that receives a fastener and includes s a first coupling feature including guide slots and a recessed channel for receiving the elongated stabilizer. The anchor assembly further includes a cap that has a second coupling feature that is complementary to the first coupling feature and includes structures that are laterally received in the base guide slots for mating the cap to the base, as well as a stop element that in combination with the first coupling feature limits the lateral movement of the cap in the guide slots. The cap includes a retaining element that is driven into engagement with the elongated stabilizer so as to lock and retain the elongated stabilizer in place within the anchor assembly.
    Type: Application
    Filed: October 3, 2007
    Publication date: September 23, 2010
    Inventors: Frank Cammisa, Javin Pierce
  • Publication number: 20100211114
    Abstract: A medical implant assembly includes a polyaxial bone anchor having a shank, a receiver and a retainer structure for capturing and supporting an upper end portion of the shank in the receiver. The shank includes radially extending projections on its upper end and the retainer structure includes shelves with seating surfaces for receiving and supporting the shank projections. Some embodiments include a lower compression insert.
    Type: Application
    Filed: April 21, 2010
    Publication date: August 19, 2010
    Inventor: Roger P. Jackson
  • Publication number: 20100198271
    Abstract: A screw sheath is provided for advancing a pedicle screw from outside a patient to the vertebra during minimally invasive spinal surgery. The sheath includes an elongate tubular construct having an open proximal end, a tapered distal tip with an open end. The conical tip can be deformed or reconfigured when subject to the axial force of the pedicle screw being advanced into the pedicle or by manual operation of the operator. The pedicle screw is advanced through the sheath to the pedicle and retained by the tip of the sheath. Then a driver is used to advance the screw through the sheath and into the vertebra.
    Type: Application
    Filed: February 2, 2009
    Publication date: August 5, 2010
    Inventor: Vincent Leone