Abstract:
Instruments and techniques for implanting non-rigid implants (30, 230, 330) are provided that include positively engaging the implant (30, 230, 330) between distal and proximal ends of the implant (30, 230, 330) at least adjacent the distal end of the insertion instrument (10, 60, UO) while deploying the implant (30, 230, 330) longitudinally and distaHy from the insertion instrument (10, 60, 110).
Abstract:
A prosthetic device (20) for posterior placement in an intervertebral space defined between an upper vertebrae and a lower vertebrae may include an upper articular portion (22) configured to be at least partially disposed in the intervertebral space and a lower articular portion (24) configured to be at least partially disposed in the Intervertebral space below the tipper articular portion, the upper and lower articular portions being configured to provide articulating motion to the upper and lower vertebrae. The upper and lower articular portions each may include a posterior section (28) configured to be disposed in a location posterior of the intervertebral space. The posterior section of one of the upper and lower articular portions may include a post (SO), and the posterior section of the other of the upper and lower articular portions may include a receiving portion (70) configured to interact with the post during articulation.
Abstract:
Systems (10) and methods for positioning a connecting element (200) adjacent the spinal column in minimally invasive procedures include instruments that guide the connecting element (200) from a location remote from one or more anchors (300) to a location proximate to the one or more anchors (300). The instruments include extensions (100) mountable to anchors (300), and inserter instruments (20) mountable to the connecting element (200) for positioning the connecting element (200) adjacent the anchors (300) in a minimally invasive procedure. The inserter instruments (20) need not be mounted to the anchors (300) or to the anchor extensions (100), and are operable independently thereof to position the connecting element (200) into the patient along a minimally invasive insertion path from a location remote from the anchor extensions (100).
Abstract:
Systems (10) and methods for positioning a connecting element (200) adjacent the spinal column in minimally invasive procedures include instruments that guide the connecting element (200) from a location remote from one or more anchors (300) to a location proximate to the one or more anchors (300). The instruments include extensions (100) mountable to anchors (300), and inserter instruments (20) mountable to the connecting element (200) for positioning the connecting element (200) adjacent the anchors (300) in a minimally invasive procedure. The inserter instruments (20) need not be mounted to the anchors (300) or to the anchor extensions (100), and are operable independently thereof to position the connecting element (200) into the patient along a minimally invasive insertion path from a location remote from the anchor extensions (100).
Abstract:
Embodiments of the disclosure provide a new and improved dynamic stabilization rod for spinal implants and methods of making the same. The dynamic stabilization rod has a hollow cylindrical body and an opening extending spirally around a longitudinal axis of the cylindrical body. The cylindrical body, including the opening, may be filled and/or coated in whole or in part with polycarbonate urethane to prevent over extension and reduce wear. The opening may be machined or otherwise cut to a shape corresponding to a dog bone or puzzle. Portion(s) of the cylindrical body can be left rigid and uncut for integration with other spinal device(s) to facilitate fusion or segmental stability of the spine.
Abstract:
An artificial vertebral joint (100) is interposed between a superior vertebra and an inferior vertebra. The artificial vertebral joint comprises a rostral joint component having a first surface adapted for engagement with an endplate of the superior vertebra, a first anterior articulation surface (122), and a support tab (111) adapted for extending from the first surface and for engaging a portion of the endplate. The portion of the endplate extends from the first surface to a posterior edge of the endplate. The joint further comprises a caudal joint component having a second surface adapted for engagement with an endplate of the inferior vertebra and a spacer component (118) adapted for interposition between the rostral joint component and the caudal joint component.
Abstract:
An artificial spinal joint (100) for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprises an articulating joint replacement assembly (102). The articulating joint replacement assembly comprises an anterior joint replacement (106, 112) component extending into an intervertebral disc space between the superior and inferior vertebrae, a first posterior joint replacement component (108, 114), and a first bridge component (110, 116) coupled between the anterior joint replacement component and the first posterior joint replacement component. The artificial spinal joint further comprises a support joint replacement assembly (104). The support joint replacement assembly comprises an anterior support component (146, 152) extending into an intervertebral disc space between the superior and inferior vertebrae, a second posterior joint replacement component (148, 154), and a second bridge component (150, 156) coupled between the anterior support component and the second posterior joint replacement component. The anterior support component is engaged with the articulating joint replacement component.
Abstract:
An orthopedic prosthesis comprising a polymeric cup member for use in a ball and socket joint is disclosed. The cup member (10) may include several advantageous features such as a multi-directional and multi-planar channel (50) having an undercut area that provides an interference fit between the cup member (10) and a fixation material for enhanced fixation. The cup member (10) may further comprise a plurality of spacers (60) for ensuring an even mantle of fixation material between the cup member and the bone, a series of divots (70) for enhancing fixation, a locating feature that permits a physician to visualize and locate the cup member in the socket of the patient's bone on appropriate medical equipment, and a lead-in chamfer (42) located between a rim (40) and an interior surface (30) of the cup member (10). Further, the cup member (10) may comprise a planar rim (40) or may alternatively comprise a hood (90) located distally from said rim (40).
Abstract:
An artificial spinal joint (100) for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprises a first joint half (102) comprising a first intervertebral articulating assembly, a first rostral connection assembly (106), and a first caudal connection assembl (116). The joint further comprises a second joint half (104) comprising a second intervertebral articulating assembly, a second rostral connection assembly, and a second caudal connection assembly. The joint further comprises a constraint component (216) extending between the first rostral connection assembly and the first caudal connection assembly.