摘要:
A dynamic spinal stabilization linkage for use in stabilizing of the spine. The linkage connects adjacent vertebrae to provide load-sharing and stabilization while allowing natural kinematics. The linkage comprises three rigid bodies joined in series with 3-degree-of-freedom spherical joint between each body. The joints have range-of-motion constraints which limit undesirable intervertebral motion.
摘要:
A system and method for immobilizing adjacent spinous processes in accordance with the present invention can supplement primary fusion devices and methods by immobilizing spinous processes while bone from adjacent vertebral bodies grows together. The system requires less extensive surgical procedures than other common supplemental devices, and preferably does not require bone or ligament removal. One such system comprises three spacers positioned between spinous processes and adjustably connected with a plate positioned on either side of the spinous processes. Each plate includes grips, with each grip positioned adjacent to the spinous process, forming a clamp with a grip connected with the opposing plate.
摘要:
An implant that can be placed between two vertebrae using a lateral insertion method is described. The implant is characterized by having a first end plate and a second end plate with a hemi-cylindrical spacer extending from the second end plate. The hemi-cylindrical spacer fits within a socket on the first end plate and allows for pivotal or rotational motion and also for twisting motion.
摘要:
A dynamic stabilization, motion preservation spinal implant system includes an anchor system, a horizontal rod system and a vertical rod system. The systems are modular so that various constructs and configurations can be created and customized to a patient.
摘要:
A dynamic stabilization, motion preservation spinal implant system includes an anchor system, a horizontal rod system and a vertical rod system. The systems are modular so that various constructs and configurations can be created and customized to a patient.
摘要:
A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion.
摘要:
Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the implant can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant.
摘要:
Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a first wing, a spacer extending from the first wing, and a distraction guide. The distraction guide is arranged in a first configuration to pierce and/or distract tissue associated with adjacent spinous processes extending from vertebrae of a targeted motion segment. The implant can be positioned between the adjacent spinous processes and once positioned, the implant can be arranged in a second configuration. When arranged in a second configuration, the distraction guide can act as a second wing. The first wing and the second wing can limit or block movement of the implant along a longitudinal axis of the implant.
摘要:
A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion.
摘要:
A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension inhibitor while allowing freedom of spinal flexion. The implant includes an elliptically-shaped spacer for positioning between and spacing apart the spinous processes.