Patent application number | Description | Published |
20110251690 | INTERVERTEBRAL IMPLANT - An intervertebral implant includes opposing upper and lower endplates that are configured to engage respective vertebral surfaces in an intervertebral space. The implant carries a plurality of bone fixation spikes that extend out from each endplate. The spikes define a plurality of outer surfaces that extend from a base to a tip. The spikes are laterally staggered, and have a height that increases along a longitudinal direction from the front toward the rear of the implant, and a define recess formed in at least one outer surfaces. | 10-13-2011 |
20120022652 | SPINE DISC REPLACEMENT WITH COMPLIANT ARTICULATING CORE - An intervertebral implant can include a pair of endplates between which is coupled a bag that is filled or is fillable with small beads or particles having smooth exterior geometries. The bead sack implant allows for articulation about various centers of rotation without a predefined neutral position. | 01-26-2012 |
20120158061 | METHODS AND SYSTEMS FOR MINIMALLY INVASIVE POSTERIOR ARCH EXPANSION - Provided are methods and systems for enlarging a spinal canal of a vertebra. Using the methods and systems disclosed the spinal canal of the vertebra is enlarged by cutting the posterior arch portion of the vertebra to create one or two implant receiving spaces in the posterior arch portion. The cutting of the posterior arch portion is completed through a minimally invasive approach. Once cut, the detached portion of the posterior arch portion is repositioned and an implant is positioned in the implant receiving space of the posterior arch portion to thereby enlarge the spinal canal such that the spinal cord is no longer compressed. The insertion of the implant is also completed through a minimally invasive approach. | 06-21-2012 |
20120172988 | INTERVERTEBRAL IMPLANT WITH MULTIPLE RADII - An intervertebral implant comprises a number of components including upper and lower endplates and one or more inserts configured to be disposed between the upper and lower endplates. Complimentary curved articulation surfaces are defined on the insert-facing surfaces of the upper and lower endplates and on the corresponding upper and lower surfaces of each of the inserts. The components of the implant articulate with respect to each other along shared articulation surfaces. At least two pairs of shared articulation surfaces are defined, each pair having a different length radius. The components of the implant can be configured with retainers, such that the implant is retained in an assembled configuration when disposed within an intervertebral space. | 07-05-2012 |
20130268008 | Zero-Profile Interbody Spacer and Coupled Plate Assembly - An implant for insertion into the disc space between vertebrae. The implant including a spacer portion, a plate portion coupled to the spacer portion, a plurality of bone fixation elements for engaging the vertebrae and a retention mechanism for preventing the bone fixation elements from postoperatively uncoupling from the implant. | 10-10-2013 |
20140200669 | INTERVERTEBRAL CAGE WITH ANTERIOR FIXATION AND STABILIZATION - A spinal implant. The spinal implant includes a spacer having an upper surface for contacting a superior vertebral body, a lower surface for contacting an inferior vertebral body, a first insertion end portion, and a second end portion opposite the first insertion end portion; a fixation frame coupled to the second end portion of the spacer and including a bridge portion oriented substantially coplanar with the spacer and at least one arm extending from the bridge portion; and at least one fixation element having a first insertion end for penetrating the superior or inferior vertebral bodies and a second end coupled to the at least one arm of the fixation frame. | 07-17-2014 |
20140371857 | INTERVERTEBRAL IMPLANT - An intervertebral implant includes opposing upper and lower endplates that are configured to engage respective vertebral surfaces in an intervertebral space. The implant carries a plurality of bone fixation spikes that extend out from each endplate. The spikes define a plurality of outer surfaces that extend from a base to a tip. The spikes are laterally staggered, and have a height that increases along a longitudinal direction from the front toward the rear of the implant, and a define recess formed in at least one outer surfaces. | 12-18-2014 |
20150216675 | Zero-Profile Interbody Spacer and Coupled Plate Assembly - An implant for insertion into a disc space between vertebrae, wherein the implant includes a spacer portion, a plate portion coupled to the spacer portion, two bone fixation elements for engaging the vertebrae and a retention mechanism for preventing the bone fixation elements from postoperatively backing-out of the plate portion. The retention mechanism may be in the form of a spring biased snapper element that is biased into communication with the bone fixation elements so that once the bone fixation element advances past the snapper element, the snapper element is biased back to its initial position in which the snapper element interfaces with the bone fixation elements. Alternatively, the retention mechanism may be in the form of a propeller rotatable between a first position in which the bone fixation elements are insertable to a second position where the bone fixation elements are prevented from backing-out. | 08-06-2015 |