摘要:
An intervertebral spacer for therapeutic treatment of a patient includes at least one link sized and dimensioned to fit within an intervertebral space in the patient, and is configured to maintain a separation of two adjacent vertebrae for a period of time. A rigid guiding object, which may be a tool or a successive link, is insertable into the patient, to guide other links into the patient using an MIS approach. A pivot is connected between successive links, or between a guide tool and a link, configured to limit a relative range of angular orientation between the link and the guiding tool, or successive links. Multiple links are so joined to form a chain pushable by the last link, and pullable by the first link, to form a chain which may be formed into a curved configuration corresponding to the patient's intervertebral space.
摘要:
An inter-body device (10) for replacing a disc between and/or for fusing adjacent vertebrae comprising: a plurality of spaced cans (30) connected to each other by a single flexible bridge (60).
摘要:
According to the invention, this prosthesis (1) comprises: - an upper plate (2); - a lower plate (4); - two assemblies (23, 15) forming first installation means, wherein each is attached to the upper plate (2) or the lower plate (4), both assemblies (23, 15) being arranged at a distance from each other in the frontal plane and substantially at equidistance from the median anteroposterior plane of the plate (4); and - two elongated elastic rings (3), perpendicularly compressible to their lengths, and each comprising second installation means (15, 23) on a longitudinal portion (3a), each of these rings (3) being intended to be installed on one of said assemblies (23, 15) forming the first installation means by means of said second installation means (15, 23), being arranged substantially parallel with the anteroposterior plane of the prosthesis (1), and each of these rings (3) being intended to bear against the lower plate (4) and receive the upper plate (2).
摘要:
An artificial spinal joint for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprises a first joint half comprising a first intervertebral articulating assembly, a first rostral connection assembly, and a first caudal connection assembly. The joint further comprises a second joint half comprising a second intervertebral articulating assembly, a second rostral connection assembly, and a second caudal connection assembly. The joint further comprises a constraint component extending between the first rostral connection assembly and the first caudal connection assembly.
摘要:
An artificial vertebral joint (100) for interposition between a superior vertebra and an inferior vertebra, the artificial vertebral joint comprises a superior retaining portion (110), and an inferior retaining portion (114). The joint further comprises a half-cylinder shaped mobile bearing (102) adapted for insertion between the superior retaining portion and the inferior retaining portion, wherein the half-cylinder shaped mobile bearing is further adapted to move within the inferior retaining portion.
摘要:
The present invention relates to devices and methods for treating one or more damaged, diseased, or traumatized portions of the spine, including intervertebral discs, to reduce or eliminate associated back pain. The present invention relates to an expandable interbody spacer.
摘要:
Disclosed herein are devices (100), systems and methods of use relating to articulating interbody cages. In one aspect, disclosed is an intervertebral device (100) for use in a human spine including an anterior end (104); a posterior end (102); and at least four peripheral walls (22,24,26). The peripheral walls (26) define an interior volume surrounding a midline of the device and include a superior wall (22), an inferior wall (24) and a pair of opposing, generally trapezoidal - shaped sidewalls. Each of the trapezoidal - shaped sidewalls (26) includes an internal hinge element (60) that is rotatable from a first configuration to at least a second configuration such that the device is expandable in first dimension. Each of the internal hinge elements includes an axis that is coplanar with the midline of the device.
摘要:
Systems for interbody fusion of adjacent bone portions may include an expanding implant (100) and related instruments. An expanding implant may be formed as a linkage which is movable between a compact configuration and an expanded configuration. A shaft (110) of the implant may increase and decrease in length to move between the compact and expanded configurations, and an implant width perpendicular to the length may be increased in the expanded configuration. The implant width may increase more in a first direction than a second direction opposite the first direction. An inserter instrument may releasably grasp the spacer and transform the implant between the compact and expanded configurations.
摘要:
A spinal implant system, specifically an intervertebral spacer. The system is designed to change its physical conformation from a minimal profile to an expanded state, enabling it to be placed through a smaller incision and operative cannula. The ability to change from a minimal profile to an expanded state may be accomplished through pivoting of support bodies, or expansion through a screw system, or sliding of the support bodies perhaps along an oblong surface. The system will allow for long-term promotion of osteointegration.
摘要:
A spinal implant for positioning in a space formed between vertebral members. The implant includes a number of sections that are pivotally attached together at pivot axes. The pivot axes include connectors that extend through at least a portion of the sections and are configured for the sections to be pivotally attached for the implant to be flexible to facilitate insertion into the space and to be configurable to the space. One of the sections may include a receptacle that is contained within the section. The receptacle has a fixed size and shape that holds bone growth material. The fixed size and shape of the receptacle prevents the bone growth from escaping during flexing of the implant.