摘要:
Methods for securing a intervertebral cage to one or more levels of the spine with fixation. The fixation, which is typically a staple, is intended to be driven perpendicular to the proximal face of the cage and in-line with the inserter. After the cage is placed and positioned according to surgeon preference, a single piece fixation clip is then deployed and fixed in a manner that produces a zero-profile device.
摘要:
A method of implanting an intervertebral disc prosthesis in a patient comprises selecting a superior and inferior endplates from a plurality of endplates having different endplate features. The different endplate features include different structural and material composition features. In addition, a core is selected from a plurality of cores having different core features such as different structural and material composition features. In one embodiment, the core is a composite core comprised of a first material and a different second material. After the endplates and core are selected, the intervertebral disc prosthesis is assembled with the selected core positioned between the selected endplates. The assembled intervertebral disc prosthesis is then positioned on an insertion tool and implanted in the patient.
摘要:
Methods for securing a intervertebral cage to one or more levels of the spine with fixation. The fixation, which is typically a staple, is intended to be driven perpendicular to the proximal face of the cage and in-line with the inserter. After the cage is placed and positioned according to surgeon preference, a single piece fixation clip is then deployed and fixed in a manner that produces a zero-profile device.
摘要:
An intervertebral disc prosthesis comprises a first prosthesis component, a second prosthesis component, and an intermediate prosthesis component positioned between the first prosthesis component and the second prosthesis component. The first prosthesis component and second prosthesis component are configured to rotate upon the intermediate prosthesis component. The first prosthesis component includes a vertebra facing surface with a central channel formed in the vertebra facing surface. The central channel is designed and dimensioned to engage an insertion arm of a disc insertion tool. The first prosthesis component also includes at least one indentation configured to engage at least one retention arm of the disc insertion tool. The at least one indentation of the first prosthesis component may comprises at least one groove formed in a collar of the first prosthesis component. In one embodiment, the first and second prosthesis components are plates and the intermediate prosthesis component is a core.
摘要:
Methods and devices are provided for replacing damaged, injured, diseased, or otherwise unhealthy elements of the spinal three-joint complex, such as the facet joints and discs. In one exemplary embodiment, a joint replacement system includes a facet replacement component that is adapted to replace and/or augment the facet joints, and a disc replacement component that is adapted to replace a spinal disc. The facet replacement component and the disc replacement component can couple to one another to allow and/or control flexion, extension, and/or lateral bending of the spine, preferably while substantially restricting posterior-anterior shear and axial rotation of the spine.
摘要:
An appliance lid for an appliance is disclosed. The appliance lid includes a viewing window; and at least one clamshell providing partial encapsulation of the viewing window using at least two parts surrounding the viewing window. The viewing window allows operation of the appliance to be observed. In one embodiment, the clamshell includes a top piece and a bottom piece encapsulating the viewing window. The appliance may be, for example, a top loading washing machine. The top and bottom pieces can be fastened to one another, for example, using an adhesive or one or more mechanical fasteners. One or more gaskets can optionally be provided along at least one edge of the viewing window. A magnet can optionally be embedded in the clamshell to provide a safety lock for the appliance.
摘要:
Methods and devices are provided for replacing damaged, injured, diseased, or otherwise unhealthy elements of the spinal three-joint complex, such as the facet joints and discs. In one exemplary embodiment, a joint replacement system includes a facet replacement component that is adapted to replace and/or augment the facet joints, and a disc replacement component that is adapted to replace a spinal disc. The facet replacement component and the disc replacement component can couple to one another to allow and/or control flexion, extension, and/or lateral bending of the spine, preferably while substantially restricting posterior-anterior shear and axial rotation of the spine.
摘要:
A method and system for insertion of an implant is disclosed. One embodiment of a system for use in implanting a spinal prosthesis incorporating principles of the invention includes an insertion assembly housing with a channel extending from a distal end portion to a proximal end portion, a gripper having a prosthesis coupling portion for coupling with a spinal prosthesis and an end portion, and a coupler member having a gripper coupling portion rotatably positioned within the channel and configured to couple with the end portion of the gripper within the channel.
摘要:
An intervertebral disc prosthesis comprises a superior endplate, an inferior endplate, and an intermediate core positioned between the endplates. The core comprises a central disc portion and a radial flange. The central disc portion of the core is defined by a superior bearing surface and inferior bearing surface. The radial flange of the core includes a first portion that extends radially outward from the central disc portion of the core. The radial flange also includes a second portion that extends axially from the first portion of the flange. The second portion of the flange extends a substantially greater distance toward the inferior endplate than toward the superior endplate. In one embodiment, the second portion of the flange extends completely to the inferior endplate and engages the inferior endplate when the inferior endplate is in a neutral position relative to the core.
摘要:
A method of implanting an intervertebral disc prosthesis in a patient comprises selecting a superior and inferior endplates from a plurality of endplates having different endplate features. The different endplate features include different structural and material composition features. In addition, a core is selected from a plurality of cores having different core features such as different structural and material composition features. In one embodiment, the core is a composite core comprised of a first material and a different second material. After the endplates and core are selected, the intervertebral disc prosthesis is assembled with the selected core positioned between the selected endplates. The assembled intervertebral disc prosthesis is then positioned on an insertion tool and implanted in the patient.