摘要:
A spinal implant includes a first member having a wall that defines an axial cavity. A second member extends between a first end and a second end and defines a longitudinal axis. The second member is configured for disposal with the axial cavity and translation relative to the first member. A third member has an outer surface engageable with tissue and an inner surface disposed to dynamically engage the first end in response to the engagement of the outer surface with the tissue. Systems and methods are disclosed.
摘要:
Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.
摘要:
An anchoring device, a spinal implant and an instrument for implantation of the implant and the anchoring device are provided, as well as a system and a method for implanting spinal implants and anchoring devices in vertebrae, wherein the implant and the anchoring device (1) reciprocally fit to each other, said anchoring device including a body (10) of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device (1) may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device (1) is inserted, by means of the instrument, through an orifice located in said implant to penetrate into at least one vertebral plate.
摘要:
An implant assembly including an angled intermediate plate inserted between two sections of mesh cage. The intermediate plate offers a safe and secure connection to the mesh cages while providing lordosis/kyphosis angling at the center of the construct instead of at the end of the cage only. One or more angled endplates may be included which allow the surgeon to make a construct unique to the patient's anatomy. The endplates and intermediate plate may include integrated clips configured to snap into corresponding holes in the mesh cage for a secure fit.
摘要:
A method for stabilizing a cervical spine segment includes implanting a respective uncinate joint stabilizer into each uncinate joint of the cervical spine segment to stabilize the uncinate joints and thereby stabilize the cervical spine segment, wherein each uncinate joint stabilizer has threads and the step of implanting includes threading each uncinate joint stabilizer into the respective uncinate joint along an anterior-to-posterior direction using the threads.
摘要:
An anchoring device, a spinal implant and an instrument for implantation of the implant and the anchoring device are provided, as well as a system and a method for implanting spinal implants and anchoring devices in vertebrae, wherein the implant and the anchoring device (1) reciprocally fit to each other, said anchoring device including a body (10) of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device (1) may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device (1) is inserted, by means of the instrument, through an orifice located in said implant to penetrate into at least one vertebral plate.
摘要:
The present invention concerns an intervertebral prosthesis device and a fixation device for fixing an intervertebral prosthesis device to an adjacent vertebra (V), characterized in that the fixation device comprises at least one anchoring tongue (51, 52) configured to be impacted into a plate (V0) of a vertebra (V), through at least a portion of said intervertebral prosthesis device; and a stop (53) configured to abut on said intervertebral prosthesis device and retain the fixation device to said intervertebral prosthesis device.
摘要:
The present invention relates generally to a prosthetic spinal disc for replacing a damaged disc between two vertebrae of a spine and methods for inserting said discs. The intervertebral prosthetic discs are provided with connections for facilitating implantation and removal and features which enhance primary and secondary stability over time.
摘要:
Prosthetic intervertebral discs (100) are described. The subject prosthetic discs include upper and lower endplates (110, 120) separated by a compressible core member (130). The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components, construction, and other features of the discs.