Patent classifications
A61F2/442
Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine
A vertebral body replacement device includes a first member and a first footplate detachably connectable to the first member, a second member and a second footplate detachably connectable to the second member, and a central member detachably connectable to the first member. The first member is displaceable relative to the second member in response to rotation of the central member relative to the first member to adjust the length of the vertebral body replacement device. The first footplate includes a first surface oriented toward the first member, a second surface oriented away from the first member, and a sidewall extending between the first surface and the second surface. The first surface includes an alignment slot facing the first member. The alignment slot is open through the sidewall of the first footplate and configured to slidingly engage the first member to orient the first footplate relative to the first member.
Vertebral implants and methods for installation thereof
Embodiments herein are generally directed to vertebral implants and implant trials for use with vertebral implant assemblies. In some embodiments, these implants and implant trials may be used in conjunction with corpectomy procedures.
Flexible elongated chain implant and method of supporting body tissue with same
Implants and methods for augmentation of the disc space between two vertebral bodies to treat disease or abnormal pathology conditions in spinal applications. The implant includes a chain of biocompatible material suitable for insertion into a disc space between two adjacent vertebral bodies in a patient's spinal column, wherein the spinal disc space has a transverse plane. The chain comprises a plurality of adjacent bodies having a height configured to reside within the disc space between two adjacent vertebral bodies and a length configured to reside in the disc space between two adjacent vertebral bodies when the chain is curved in an orientation substantially along the transverse plane of the spinal disc space.
Radially expandable annulus reinforcement prosthesis
An intervertebral implantation system for restoring disc height and vertebral alignment, while allowing dynamic mobility and stabilization of the vertebral segment, and minimally invasive methods of implanting the same. The implantation system includes an annular reinforcement implant, including an elastomeric balloon inserted into the hollow or interior of a tubular sleeve, and secured only at a first and second neck portions to a securement element coupled to an attachment fixture, forming an annular structure attached to the outer margin of the annulus fibrosus. When the prosthetic implant is in a contracted state the tubular sleeve is redundant and undulated, forming folds, gathered loosely around the circumference of the inner balloon. Upon pressurized inflation with in-situ curable polymer, the elastomeric balloon elongates and expands circumferentially, and the tubular sleeve stretches and unfolds, constraining further expansion and elongation of the elastomeric balloon. The attachment fixture is configured to provide secure attachment to the outer margin of the annulus fibrosus. A temporary, high pressure vertebral distraction balloon is utilized to aid in vertebral distraction during a surgical procedure to implant the annular reinforcement implant.
Dual expandable spinal implant
Apparatus and associated methods relate to a spinal implant configured to expand both vertically and laterally at the same time when wedges coupled by a threaded post drive movable spinal implant endplates radially outward from the longitudinal axis of the threaded post, displacing the wedges and expanding the implant as the threaded post turns. In an illustrative example, the wedges may be a pair of wedges configured with dual inclined planes. The inclined planes may be, for example, disposed both vertically and laterally with respect to the threaded post longitudinal axis, permitting implant expansion both vertically and laterally simultaneously. In some examples, the wedges may be cones. Some embodiments may include a lock adapted to prevent the threaded post from turning. Various examples may advantageously provide improved stability and reduced subsidence, based on increased vertebral body contact area with an implant expanded in place to the desired height and width.
EXPANDABLE INTERVERTEBRAL IMPLANT
An implant for therapeutically separating bones of a joint has two endplates each having an opening through the endplate, and at least one ramped surface on a side opposite a bone engaging side. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. An actuator screw is rotatably connected to the frame. A carriage forms an open area aligned with the openings in the endplates. The openings in the endplates pass through the carriage to form an unimpeded passage from bone to bone of the joint. The carriage has ramps which mate with the ramped surfaces of the endplates, wherein when the carriage is moved by rotation of the actuator screw, the endplates move closer or farther apart.
EXPANDABLE INTERVERTEBRAL IMPLANT
An expandable intervertebral implant is provided for insertion into an intervertebral space defined by adjacent vertebrae. The expandable intervertebral implant includes a pair of outer sleeve portions and an inner core disposed between the outer sleeve portions. Movement of the inner core relative to the outer sleeve portions causes the outers sleeve portions to deflect away from each other, thereby engaging the expandable intervertebral implant with the vertebrae and adjusting the height of the intervertebral space.
Spine Cage Holder
The present invention concerns a cage holder including an elongated body comprising a proximal end and a distal end, the elongated body extending from the proximal end to the distal end. The cage holder is characterized in that it further includes means for transferring energy centrally from the proximal end to the distal end through the elongated body.
VERTEBRAL DISC REPAIR
The present disclosure includes apparatuses, systems, and methods for vertebral disc repair. An example apparatus includes a first surface including a concave opening configured to receive an artificial disc, a second surface, and an aperture extending through the first surface and the second surface, wherein the aperture is configured to receive a bone screw.
Expandable interbody device
An expandable interbody device for use in the spine is configured to fit through Kambin's Triangle. The expandable interbody device can include a body defining a front end, a rear end and a plurality of sidewalls spanning between the front and rear ends, an expandable member pivotally attached to the body such that the expandable member pivots outwardly from one of the plurality of sidewalls and a screw threaded into the body through the rear end thereof. The expandable member defines an actuator flange that projects into the body. The screw abuts the actuator flange such that contracting the screw into the body causes the expandable member to pivot outwardly from the body.