Abstract: A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand the height and to maintain a space therebetween. The insert body may include a leading edge that is tapered to allow ease of insertion. A trailing edge of the insert body includes a pin to allow ease of insertion along a curvature path.

Abstract: A polyaxial cannulated screw having a resilient expandable body capable of supporting compressive and cyclic loads. The expandable body provides an artificial disc prosthesis by use of the expandable body that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion. A U-shaped saddle attached to a spherical ball permits optimum positioning of a rod member by polyaxial placement.

Abstract: A spinal fusion device that is expandable along a side edge. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or contracting the device along a side edge.

Abstract: A cervical plate formed from an expandable clip that is drawn toward a plate by use of a draw screw coupled to a draw bar. The draw bar is placed in an aperture having engagement with an angular surface that operates in conjunction with a proximal and distal end of the clip, which engages a tab to cause expansion when the draw screw engages the draw bar across a plate.

Abstract: A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding compacting the device.

Abstract: A spinal implant for stabilizing two adjacent vertebrae having a damaged disc therebetween is assembled in situ. The implant consists of a bone tray, an anchor, a retainer plate, a retainer, and mounting screws. The bone tray bone tray is elliptical shaped and includes an open top side and an open bottom side, the top side and the bottom side adapted to engage the end plates of adjacent vertebrae, respectively, the bone tray having a sidewall connecting the top side and the bottom side, the sidewall having an bore therethrough. The retainer is slidably extending through the bore whereby the distractor anchor is adapted to be inserted between adjacent vertebrae and the retainer extends through the retainer plate. The retainer plate is secured to the vertebrae body by mounting screws. A driver, not shown, is adapted to rotate the retainer which engages the distractor anchor to engage the bone tray.

Abstract: A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand both in height and width, and to maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces.

Abstract: Disclosed are various instruments and implants used in minimally invasive spine surgery. Disclosed is a cannulated probe, a guide wire handle; a guide wire handle having a locking mechanism, an all-in-one guide wire tool; a retractor flex rod passage; or a tab break tool.

Abstract: A facet fixation device formed from an anchor screw and a collet or facet screw that is secured to adjacent pedicles. The anchor screw has an aperture for receipt of a first end of a guide wire or polyaxial based facet screw. The collet includes a unidirectional attachment mechanism wherein a wire can be drawn to a desired position to fix the distance between the anchor screw and the collet. Excess wire can then be removed.

Abstract: A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or contracting the device in cooperation with a hinge assembly.

Abstract: A spinal fusion device that is expandable. The device features a top and bottom surface for engaging adjacent vertebrae, a hollow center for stacking of bone or bone growth material, and a slidable mechanism with grooves for expanding or unexpanding the device.

Abstract: A cervical plate having improved mounting screws that employ a retention clip for automatically engaging the head portion of the screw during insertion into countersunk apertures. The arrangement prevents the mounting screws from migrating out of the bone material during use.

Abstract: Disclosed is a cervical plate having a polyester staple fiber laminated within a polycarbonate urethane. The polyurethane provides a flexible, high resilience structure with a Dacron® material providing a flexible skeleton. The result is a cervical plate that is flexible but provides the necessary rigidity. An inflatable balloon can be used to mimic the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion.

Abstract: The present invention is directed to an adjustable corpectomy device which fits within the intervertebral distracted channel. The device includes a means for engaging an extendable member to accommodate the distracted channel. The corpectomy implant device is defined by a main body, a first expandable plate, and an opposing second expandable plate. Each expandable plate is adapted to fit within the main body in a compressed state, and extends away from the main body in a non-compressed, expanded state.

Abstract: A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the porperties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion.

Abstract: The instant invention is a longitudinally adjustable corpectomy device which fits within the intervertebral distracted channel. A ratchet mechanism allows for an extendable member to adjust to a longer length to accommodate a distracted channel. The ratchet type mechanism allows the members to move in a unidirectional movement to prevent the two members from contracting once expanded.

Abstract: A spinal implant formed from a hinged distractor having an upper and lower support body that is hinged by use of pinions. An insert body is constructed and arranged to slide between the section to expand both in height and width, and to maintain a space therebetween. The insert body includes a leading edge that is tapered to allow ease of insertion. A trailing edge that extends beyond a front edge of the upper support body will cause the insert body to be locked into position. A trailing edge engages the rear of the upper support body to prevent over insertion. A lower surface of the insert body may include locking surfaces.

Abstract: An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

Abstract: An intervertebral insert member and an instrument for positioning the insert in a space between vertebral bodies in vivo. The insert member is advanced by the instrument into a prepared site located between adjacent vertebral bodies. Upon reaching the appropriate insertion point, the sleeve is retracted and a pivotal motion is imparted to the insert. The insert member is pivotally attached to the distal end of the delivery instrument such that it can be articulated about a pivot point that is located on the insert member until it is properly positioned. The positioning instrument is then released from the insert member and removed from the space between the vertebral bodies. An adjustment screw is available to expand the surfaces of the insert member by displacement of a wedge member within the insert.

Abstract: A cannulated screw having a resilient balloon structure capable of supporting compressive and cyclic loads. The balloon provides an artificial disc prosthesis by use of the balloon that mimics the properties of the natural disc by maintaining the intervertebral disc space through a full range of natural motion, absorbing shocks and permitting a natural range of motion.