Abstract:
An implant (1.00, 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 (2:8). Rotation of bolt (20) thus varies a distance between spherical bearing (28) and hinge pin (Ί 6), thereby causing deflection of the sequence of segments.
Abstract:
An intervertebral implant includes a frame including an end member and an intermediate member pivotally coupled to the end member about a first pivot axis. The intervertebral implant includes a first vertebral contact member pivotally coupled to the frame about a second pivot axis that is substantially perpendicular to the first pivot axis, and a second vertebral contact member coupled to the frame. The frame is configured such that pivoting the intermediate member with respect to the end member about the first pivot axis changes both a width between the first vertebral contact member and the second vertebral contact member with respect to a direction that is substantially parallel to the second pivot axis, and changes a height between the first vertebral contact member and the second vertebral contact member with respect to a direction that is substantially parallel to the first pivot axis.
Abstract:
Device for measuring the angle of anteversion of the femoral component, the angle of anteversion of the acetabulum and/or of the cotyle and/or the acetabular inclination angle and/or the cotyloid inclination angle for making a hip prosthesis, comprising:- at least one main component (9) mountable on an apical component (3, 30) of a trial neck device or on an implanted femoral prosthesis component;- at least one auxiliary component (10, 11, 12) engageable with said main component (9); and- engagement means of said main component (9) with said apical component (3, 30) or with said femoral prosthesis component along a longitudinal axis (w-w), said at least one auxiliary component (10, 11, 12) being displaceable with respect to said main component (9) about an axis transversal to said longitudinal axis (w-w).
Abstract:
An implant device, system and method can include a top structure, a bottom structure, and an intermediary structure. The bottom structure can include a helical groove structure, and the intermediary structure can include at least one pin that cooperates with the helical groove structure such that the pin and the helical groove structure guide the intermediary structure in both a rotational direction about the central axis and an axial linear direction along the central axis. The bottom structure can also include a linear groove structure configured to guide the top structure in a linear motion with respect to the bottom structure when the intermediary structure is rotated with respect to the bottom structure.
Abstract:
A vertebral body system and method having a polyaxial fastener receiving member (6, 26), adjustable width plates (27) and a pedicle screw (700) having a pedicle threaded portion (8) and a threaded portion (7) for fastening to the vertebral body (1).
Abstract:
A spinal implant comprises a first member including a wall that defines a first cavity and a second member including a wall defining a second cavity. At least one first expandable bone graft is disposable within the second cavity. The second member is axially translatable relative to the first member between a first configuration and a second, expanded configuration such that at least a portion of the at least one first graft is disposed within the first cavity and the first cavity includes a substantially void portion. At least one second bone graft has a selective configuration and dimension for disposal within the substantially void portion. Systems and methods are disclosed.
Abstract:
A vertebral body system and method having a polyaxial fastener receiving member (6, 26), adjustable width plates (27) and a pedicle screw (700) having a pedicle threaded portion (8) and a threaded portion (7) for fastening to the vertebral body (1).
Abstract:
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 body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.
Abstract:
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.
Abstract:
A laterally deflectable asymmetric implant (10) for implanting into a body may comprise a deflectable piece having distal and proximal ends (22,24) and assuming a straightened insertion state. The backbone (30) may abut or interconnect with said deflectable piece (20) at the distal end (22) of the deflectable piece. In a fully deflected state the implant may define an asymmetric shape, e. g. a D-shaped loop (39), defining an at least partially enclosed volume (39V). The deflectable piece may comprise a sequence of segments (40, 40a, 40b, 40c) interconnected at effective hinges (47). Longitudinal pressure applied to the proximal end (24) of the deflectable piece or applied to the backbone in an opposite direction may cause relative longitudinal movement between the backbone and the proximal end of the deflectable piece and may generate outward horizontal movement of the deflectable piece away from the backbone. In one embodiment, the implant is implanted using lateral access into an anterior zone of a vertebra and deployed posteriorly.