Class / Patent application number | Description | Number of patent applications / Date published |
606272000 | Including locking mechanism | 15 |
20080312697 | System and Method for Polyaxially Adjustable Bone Anchorage - An implantable bone anchor assembly for fixing an elongated member such as a spinal rod may include a bone anchor, a coupling head configured to receive the bone anchor and the elongated member, and a locking mechanism. The locking mechanism may provide compressive force to simultaneously fix the position of the elongated member and lock out polyaxial rotation of the bone anchor relative to the coupling head. The locking mechanism may include an engagement member with an oblique surface configured to slide along an oblique surface of the coupling head into engagement with the elongated member. The bone anchor may comprise a head portion and a threaded portion which may be coupled with the coupling head and joined together during manufacture. The assembly may further include a pin and/or a collar to retain the bone anchor. The bone anchor may be side-loaded into the coupling head. | 12-18-2008 |
20120078309 | MODULAR VERTEBRAL STABILIZER - A stabilizer device for the spinal column, comprising a first body ( | 03-29-2012 |
20130035724 | Spinal Implants and Spinal Fixings - A spinal implant comprising an elongate body insertable between adjacent vertebrae, the elongate body comprising first and second portions, the first and second portions each having an internal surface, the internal surface of the first portion facing the internal surface of the second portion in use, at least part of each internal surface of the first and second portions being threaded, the spinal implant further comprising a bolt, at least part of the bolt being externally tapered and externally threaded, the external threads of the bolt corresponding with the threads of the internal surfaces of the first and second portions, wherein the bolt is insertable between the first and second portions of the elongate body such that the external threads of the bolt engage with the internal threads of the elongate body, whereby rotation of the bolt in the threaded internal surfaces of the first and second portions causes relative movement of first and second portions away from one another. | 02-07-2013 |
20130103093 | LOCKING DEVICE FOR LOCKING A ROD-SHAPED ELEMENT IN A RECEIVING PART OF A BONE ANCHOR AND BONE ANCHOR WITH SUCH A LOCKING DEVICE - A locking device includes a first locking member including a first end, a second end, a central axis, an outer surface with an external thread, a coaxial bore, and an internal thread provided along at least a portion of the bore, and a second locking member including a first end, a second end, and an outer surface with an external thread. When the second locking member is positioned in the first locking member, the second locking member is movable along the central axis by rotating the second locking member. Movement of the second locking member is limited towards the first end of the first locking member by a first stop and towards the second end of the first locking member by a second stop, where at least one of the first stop or second stop is arranged in the bore of the first locking member. | 04-25-2013 |
20130274806 | HELICAL GUIDE AND ADVANCEMENT FLANGE WITH RADIALLY LOADED LIP - A spinal fixation device combines an open-headed anchor member, such as a bone screw or a hook, with a closure member to thereby clamp a spinal fixation rod to the anchor member. The anchor member has spaced apart arms forming a rod receiving channel. The closure member and inner surfaces of the arms and tabs have helical anti-splay guide and advancement interlocking flanges formed thereon which cooperate to prevent splaying the arms and extensions as the closure member is advanced into the rod receiving channel. | 10-17-2013 |
20130331891 | STABILIZATION SYSTEM AND METHOD - The disclosure relates to systems and methods of spinal stabilization. Embodiments include minimally invasive methods of delivering a rod having a non-circular cross-sectional profile using a wire having an accommodating non-circular cross-sectional profile to inhibit movement of the rod relative to the wire. A rod or a segment of the rod having a non-circular cross-sectional profile may be aligned with the wire and advanced and coupled to bone fastener assemblies which are anchored in vertebrae. The rod is then securely seated in collars of the bone fastener assemblies to stabilize the spine. | 12-12-2013 |
20140257399 | ILIAC CONNECTORS - A connector assembly comprising a connector, spinal rod receiver, a washer and a compression member is provided. The connector extends between a first end and a second end configured for coupling to a bone fastener. The first end of the connector contains an upper surface and a lower splined surface configured for mating with a lower splined surface of a washer disposed between the first end of the connector and the rod receiver. The rod receiver containing a receiver body coupled to a threaded shaft. The rod receiver is configured for receiving a spinal rod and is attachable to the first end of the connector for selectively adjusting the direction of at least a portion of a spinal rod. The compression member connects the receiver with the first end of the connector for securing the spinal rod into the receiver body. Methods of use are also disclosed. | 09-11-2014 |
20140296919 | ADJUSTABLE MAGNETIC DEVICES AND METHODS OF USING SAME - A system includes a first pedicle screw, a second pedicle screw, and an adjustable rod having an outer housing coupled to one of the first pedicle screw and the second pedicle screw, the outer housing having a threaded shaft secured to one end thereof extending along an interior portion thereof. The system further includes a hollow magnetic assembly disposed within the outer housing and having a magnetic element disposed therein, the hollow magnetic assembly having an internal threaded surface engaged with the threaded shaft, the magnetic assembly being coupled to the other of the first pedicle screw and the second pedicle screw, wherein the hollow magnetic assembly rotates in response to an externally applied magnetic field to thereby lengthen or shorten the distance between the first pedicle screw and the second pedicle screw. | 10-02-2014 |
20140303673 | LOCKING DEVICE FOR LOCKING A ROD-SHAPED ELEMENT IN A RECEIVING PART OF A BONE ANCHOR AND BONE ANCHOR WITH SUCH A LOCKING DEVICE - A locking device includes a first locking member including a first end, a second end, a central axis, an outer surface with an external thread, a coaxial bore, and an internal thread provided along at least a portion of the bore, and a second locking member including a first end, a second end, and an outer surface with an external thread. When the second locking member is positioned in the first locking member, the second locking member is movable along the central axis by rotating the second locking member. Movement of the second locking member is limited towards the first end of the first locking member by a first stop and towards the second end of the first locking member by a second stop, where at least one of the first stop or second stop is arranged in the bore of the first locking member. | 10-09-2014 |
20150088204 | Insertion Assembly for Minimally Invasive Spinal Surgery - An alignment rod aligns first and second vertebra screw insertion assemblies during a spinal surgical procedure. The alignment rod includes a body portion that is adapted to engage and align the first and second vertebra screw insertion assemblies during a spinal surgical procedure. The alignment rod also includes a positioning post extending from the body portion and adapted to be engaged by a positioning tool adapted to position the alignment rod relative to one of the first and second vertebra screw insertion assemblies. | 03-26-2015 |
20150094770 | MULTI-START CLOSURES FOR OPEN IMPLANTS - An open implant closure structure includes a helically wound guide and advancement structure having at least two helically wound forms thereon providing a multi-start closing mechanism for use between spaced arms of a cooperating open medical implant having mating helically wound structure thereon. Illustrated structures include interlocking flange forms, v-threads, square threads, reverse angle threads and buttress threads and receivers with break-off extensions and cooperating tooling. | 04-02-2015 |
20150313645 | CONFORMING BONE STABILIZATION RECEIVER - A receiver for engaging a bone stabilizing element includes a receiver portion connectable to the stabilizing element, and a base portion connectable to a bone of a patient. The base portion may connect to the bone with a bone screw, for example a polyaxial bone screw, and the receiver portion may connect to the stabilizing element, for example a rod, using a set screw. The receiver portion and the base portion are slideably connected to each other, coupled and constrained in relative movement, by overlapping portions. Axial rotation between the receiver portion and the base portion is enabled by changing the relative dimensions of overlapped portions. | 11-05-2015 |
20150351803 | MODULAR VERTEBRAL STABILIZER - A stabilizer device for the spinal column, comprising a first body ( | 12-10-2015 |
20160066957 | BONE ANCHORING DEVICE AND TOOL COOPERATING WITH SUCH A BONE ANCHORING DEVICE - A bone anchoring device includes a receiving part including a rod receiving portion with a first end, a second end, and a U-shaped recess for receiving a rod, the recess defining two free legs, and a head receiving portion at the second end for introducing and clamping the head, and a locking ring configured to be arranged around the head receiving portion, the locking ring including an engagement structure for engagement with a tool, the engagement structure defining a width of the locking ring that is greater than a greatest width of the rod receiving portion, wherein the locking ring can assume a locking position exerting a greatest compressive force on the head receiving portion of the receiving part to lock an inserted head, and wherein the locking ring is movable out of the locking position towards the first end of the rod receiving portion. | 03-10-2016 |
20160143667 | PEDICLE SCREW SYSTEM AND SPINAL STABILIZATION SYSTEM - A pedicle screw system, including a pedicle screw having a screw shaft with an external thread and having a screw head supported on the screw shaft in a ball-and-socket joint relationship. The screw head includes a connecting element receptacle for a connecting element of a spinal stabilization system. The pedicle screw system further includes: a bone alignment apparatus and a coupling device for at least one of force-locking coupling and form-locking coupling of the bone alignment apparatus and the pedicle screw in an alignment position in which a mobility of the screw head and the screw shaft is reduced from three degrees of freedom of movement in rotation of the screw head supported on the screw shaft in a ball-and-socket joint relationship therewith by at least one degree of freedom of rotation. | 05-26-2016 |