Patent classifications
A61F2/442
Lateral spine plate with collapsible vertebral attachment arms
A lateral spine implant has a lateral spine cage and an associated lateral spine plate with one or more folding vertebral attachment arms, each arm configured for attachment to vertebral bone. The ability of the one or more arms to fold allows the lateral spine plate to be inserted/implanted at a lower profile height than traditional lateral spine plates. The lateral spine plate is meant to be used at times of intended or unintended compromise of the anterior longitudinal ligament (ALL) to prevent interbody cage migration, but may be adapted for any lateral plating application. Once expanded, each attachment arm is configured to receive a bone screw for securing the attachment arm to a vertebra, the bone screw retained by rotating cam lock nuts of the attachment arm.
DEVICE FOR IMPLEMENTING INTERVERTEBRAL FUSION
An interbody support system that includes a support and a containment body, the containment body having a fixed height or an adjustable height, and the support having a support column, which may have a fixed height or an adjustable height, an inferior plate at one end of the support column and a superior plate at the other end of the support column.
INTERBODY SPACER AND BONE PLATE ASSEMBLY
Implant assemblies, systems, and methods for stabilizing a joint between a superior vertebra and an inferior vertebra may include a plate member coupled to an interbody spacer with at least one fastener that extends superiorly or inferiorly from the implant assembly to anchor within a vertebral body and stabilize the joint. Inserters and methods of insertion may also be included to facilitate fixation of various implant assemblies within the intervertebral space of the joint between the superior vertebra and the inferior vertebra.
Implants and methods for spinal fusion
An implant is provided for performing spinal fusion. The implant includes an implant body having a leading side and a trailing side at opposing ends along a longitudinal axis. Between the leading side and trailing side are an upper surface, a lower surface, an anterior side, and a posterior side. At least one keel structure is provided extending from the implant body for penetration into an adjacent vertebral body. A trial sizer and keel cutter may be utilized to form keel channels within the vertebral body to receive the keel structure.
Articulating and expandable vertebral implant
An implant is insertable in the joint space to separate bones of the joint. The implant has two endplates each configured to engage a separate articulating bone of the joint, and a threaded member positioned between the two endplates and configured to increase the space between the two endplates when the threaded member is rotated. A rotatable gear is engaged with the threaded member, and is engageable with a rotating gear of a connected implantation tool, so that rotation of the gear on the tool causes rotation of the threaded member and expansion of the implant to separate the bones. Connector portions on the tool and the implant may be rotated together to securely engage the implant and the tool so that the gears of the tool and the implant can be rotated using an actuator outside of the body, when the implant is inside the body.
Expandable implant with deflectable sequence of segments
An implant (100, 200, 300, 400) includes a base (10), and a sequence of at least two segments including a first segment (12) and a last segment (14). The first segment (12) is pivotally linked to base (10). Adjacent segments are interconnected at pivotal connections (18). A bolt (20) has a threaded shaft (22) and a head (24). The threaded shaft (22) is engaged in a threaded channel (26) of the base (10) so that rotation of the bolt (20) about a central axis of the threaded shaft (22) varies a degree of overlap between the base (10) and the bolt (20). The last segment (14) and the head (24) define therebetween a spherical bearing (28). Rotation of bolt (20) thus varies a distance between spherical bearing (28) and hinge pin (16), thereby causing deflection of the sequence of segments.
Expandable fusion device and method of installation thereof
The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.
Implant
An implant constituted of: a body exhibiting a longitudinal axis; proximal arms extending from the body, each of the proximal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the proximal arms; distal arms extending from the body, each of the distal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the respective directions of extension of the distal arms generally opposing the respective directions of extension of the proximal arms, the body positioned between the distal arms; and intermediate arm assemblies extending from the body, each of the intermediate arm assemblies extending in a respective direction rotated about the longitudinal axis from the respective extension directions of the proximal arms and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the intermediate arm assemblies.
Methods and apparatus of performing spine surgery
Systems and methods are described for correcting sagittal imbalance in a spine including instruments for performing the controlled release of the anterior longitudinal ligament through a lateral access corridor and hyper-lordotic lateral implants with detachable fixation tabs.
DEVICES AND METHODS FOR VERTEBRAL STABILIZATION
Devices, systems and methods for the treatment of spinal instability and/or stenosis of the spinal canal and neural foramina. In one embodiment, a functional spinal unit (FSU) of a subject is approached through a lateral or antero-lateral corridor, and both an anterior and posterior column of the FSU are manipulated, implanted and/or otherwise surgically treated through the same intra-abdominal surgical corridor. A method is disclosed to reach the posterior aspect of the FSU, wherein the intra-abdominal surgical corridor is extended posterior to the psoas major muscle and through the thoraco-lumbar fascia in order to reach the transverse process and/or facet joint. Multiple trajectories for bone screw fixation of the vertebral bone are additionally disclosed. In another embodiment, the FSU is approached through the above corridor and a second posterior skin incision and corridor. The combination of the corridors provided circumferential access to the FSU.