Patent application number | Description | Published |
20100094356 | INTERLOCKING BONE SCREW AND WASHER CONCEPTS - The present disclosure provides a cannulated bone screw system including a screw with a threaded portion, a non-threaded portion, and a first plurality of teeth spaced apart from a screw head; and a washer with an interior portion with a second plurality of teeth and an opening and an outer portion with a plurality of spikes. The first plurality of teeth are on an inferior convex surface; wherein the second plurality of teeth are on a superior concave surface; and wherein the first plurality of teeth and the second plurality of teeth are operable to mate to prevent the screw from backing out of the washer while allowing the cannulated bone screw system to conform/pivot in order to accommodate different bone morphologies. | 04-15-2010 |
20100262199 | IMPLANT INSERTION TOOL - An apparatus for inserting a spinal implant includes a first elongate member and a second elongate member operatively connected to each other. The first elongate member includes a first jaw member disposed at a distal portion thereof. The first jaw member defines a first longitudinal axis. The second elongate member includes a second jaw member disposed at a distal portion thereof. The second jaw member defines a second longitudinal axis. The first and second elongate members are adapted to move the first and second jaw members between a first position where the first and second longitudinal axes are oriented substantially parallel to each other and a second position where the first and second longitudinal axes are oriented at an acute angle with respect to each other. The apparatus further includes a locking mechanism adapted to fix a relative position of the first and second elongate members. | 10-14-2010 |
20110152948 | TRIPLE LEAD BONE SCREW - A pedicle screw assembly, including: a bone screw having a head portion and a thread portion, wherein the thread portion includes an axial shaft and a triple lead thread disposed about the axial shaft; and a rod retention member selectively coupled to the head portion of the bone screw. Optionally, the triple lead thread includes leads that originate at different points along the axial shaft. Optionally, the triple lead thread includes leads that terminate at different points along the axial shaft. Optionally, the axial shaft includes a first tapering portion proximate a tip of the axial shaft. Optionally, the axial shaft includes a second tapering portion proximate the tip of the axial shaft. Preferably, the second tapering portion tapers more steeply than the first tapering portion. Optionally, the axial shaft includes a reduced diameter portion proximate the head portion. Optionally, the axial shaft includes one or more tapering portions proximate the head portion. | 06-23-2011 |
20110245923 | INTERVERTEBRAL IMPLANT DEVICE FOR A POSTERIOR INTERBODY FUSION SURGICAL PROCEDURE - An intervertebral implant device, including: a pair of substantially parallel opposed arcuate surfaces; a pair of substantially parallel opposed frictional surfaces each including a plurality of raised structures; a substantially curved end wall joining the pair of parallel opposed arcuate surfaces; and a substantially recessed end wall joining the pair of parallel opposed arcuate surfaces; wherein the intervertebral implant device defines one or more voids in which a bone graft material is selectively disposed. Preferably, the substantially recessed end wall is configured to selectively and pivotably receive one or more surgical implantation devices. | 10-06-2011 |
20130110247 | Implants with a Connectable Insert and Related Systems and Methods | 05-02-2013 |
20130253596 | TRIPLE LEAD BONE SCREW - Pedicle screw assemblies and related bone screws. In some embodiments, the bone screw may comprise a head portion and an axial shaft. The axial shaft may comprise a threaded portion comprising a triple lead thread disposed about the axial shaft. The axial shaft may further comprise a tapering portion and a non-tapering portion. The tapering portion may comprise multiple tapering portions tapering at differing rates, and may be positioned adjacent to a tip of the axial shaft. Each of the three leads may extend coextensively along at least a majority of the length of the axial shaft, the threaded portion, the tapering portion, and/or the non-tapering portion. | 09-26-2013 |
20140172107 | BIOMEDICAL IMPLANT INSERTERS AND RELATED APPARATUS, SYSTEMS, AND METHODS - Embodiments of apparatus, systems, and methods relating to spinal implants. In some embodiments, the spinal implant may comprise a first sidewall, a second sidewall opposite from the first sidewall, a pair of opposed frictional surfaces each comprising a plurality of raised structures, a first end wall joining the pair of opposed sidewall surfaces, and a second end wall joining the first sidewall and the second sidewall. The second end wall may comprise a recess formed by a first wall portion and a second wall portion arranged at an angle to one another to form a fish-tailed structure configured to be engaged with an inserter instrument. The interface between the recess and the inserter instrument may be configured to at least substantially eliminate any point or line contacts between the inserter instrument and the spinal implant during a flip maneuver of the spinal implant within an intervertebral space of a patient. | 06-19-2014 |
20140358184 | INTERLOCKING BIOMEDICAL IMPLANT FASTENER AND WASHER CONCEPTS - Biomedical implant fastener systems, such as bone screw systems and the like. In some embodiments, a fastener may comprise a first plurality of teeth, and a washer configured to be received on the fastener may comprise a second plurality of teeth configured to be engaged with the first plurality of teeth. The first plurality of teeth may be configured to engage with the second plurality of teeth such that so as to allow for selective rotation between the washer and the fastener in a first rotational direction and so as to prevent rotation between the washer and the fastener in a second rotational direction opposite from the first rotational direction when the fastener is engaged with the washer such that second plurality of teeth is engaged with the first plurality of teeth so as to prevent the fastener from backing out of the washer after engagement. | 12-04-2014 |
20140371861 | INTERVERTEBRAL IMPLANT DEVICES - Spinal implants for positioning between adjacent vertebrae. Some embodiments may comprise a pair of opposed sidewall surfaces, a pair of opposed frictional surfaces, a first end wall joining the pair of opposed sidewall surfaces, and a second end wall recessed at least in part and joining the pair of opposed sidewall surfaces. A fish-tailed structure may be positioned within the second end wall when viewed from one of the opposed frictional surface. The fish-tailed structure may be formed so as to extend at least substantially uninterrupted between at least one of the opposed sidewall surfaces and the opposed frictional surfaces. A retention structure, such as a hole, may be positioned within the fish-tailed structure. The hole may be configured to engage a surgical implantation device. | 12-18-2014 |
20150026958 | METHODS FOR FORMING A CONNECTABLE INSERT - Methods for forming an insert, such as a threaded or threadable insert, within a cavity in an implant, such as a spinal spacer. In some implementations, an implant body comprising a first, non-threadable, may be provided. A cavity may be formed in the implant body, after which an insert may be positioned within the cavity. Preferably, the insert comprises a second material distinct from the first material, wherein the second material has physical properties distinct from the first material. A female thread may then be formed within the insert, which may allow for threading an otherwise unthreadable, or relatively unthreadable, material. | 01-29-2015 |
Patent application number | Description | Published |
20080288076 | Spinal interbody spacer - A spinal spacer for engagement between vertebrae includes a body having a substantially contoured first end surface at a distal end and a second end surface opposite thereto at a proximal end. The body extends between the first and second end surfaces to define top and bottom vertebral engaging surfaces that are opposed to one another. The body extends between the top and bottom vertebral engaging surfaces to define opposed side surfaces. The top and bottom vertebral engaging surfaces intersect with the side surfaces to provide a substantially quadrilateral cross-section with rounded corners. The top and bottom vertebral engaging surfaces have a substantially streamlined convex profile. The surfaces converge at the distal end to define a substantially atraumatic blunt nose having a tip configured with planar and/or convex surfaces. | 11-20-2008 |
20100234888 | DYNAMIC CERVICAL PLATE - A dynamic cervical plate includes a first end section and a second end section. In embodiments, the dynamic cervical plate may include one or more middle sections positioned between the first and second end sections. Each section may be longitudinally repositionable. Each section may include a plurality of openings for receiving threaded fasteners such as a self-starting screw or a self-tapping screw. In addition, each section may include an orifice for releasably mating with a drill guide. Each of the end sections may include a notch at one end for aligning with the drill guide or fixation pins. In one embodiment, a pin is used to interconnect the sections. In other embodiments, support bars are used to limit flexure between sections. In embodiments, one or more locking elements and/or one or more support bars may operably interconnect each section. | 09-16-2010 |
20140128873 | DYNAMIC CERVICAL PLATE - A dynamic cervical plate includes a first end section and a second end section. In embodiments, the dynamic cervical plate may include one or more middle sections positioned between the first and second end sections. Each section may be longitudinally repositionable. Each section may include a plurality of openings for receiving threaded fasteners such as a self-starting screw or a self-tapping screw. In addition, each section may include an orifice for releasably mating with a drill guide. Each of the end sections may include a notch at one end for aligning with the drill guide or fixation pins. In one embodiment, a pin is used to interconnect the sections. In other embodiments, support bars are used to limit flexure between sections. In embodiments, one or more locking elements and/or one or more support bars may operably interconnect each section. | 05-08-2014 |