Abstract: An adjustable length corpectomy device is provided with a means for providing bidirectional length adjustment and a means for selectively fixing the length of the implant.

Abstract: An adjustable spinal implant (10) is provided for use in connecting elongate members (12) as well as vertebral spacers such as corpectomy devices, intervertebral fusion devices, and other prostheses. The implant (10) may have fittings (80) on either end comprising fixed (100) or articulating (200) jaws, endplates, or other engagement structures. The implant (10) comprises a housing (40) with an internal rotor (60); an extending shaft (20); and a locking collar (70). The extending shaft (20) has an external helical groove (23) that meshes with an internal helical groove (63) on rotor (20). Length adjustment occurs by transforming axial movement of the extending shaft (20) into a rotary movement of the rotor (60) via helical engagement. The locking collar (70) comprises protrusion (73) engaging grooves (63) of rotor (60), thus providing a simple, positive locking mechanism without requiring the surgeon to apply excessive force to lock the length.

Abstract: An adjustable length corpectomy device is provided with a means for providing bidirectional length adjustment and a means for selectively fixing the length of the implant.

Abstract: An adjustable spinal implant (10) is provided for use in connecting elongate members (12) as well as vertebral spacers such as corpectomy devices, intervertebral fusion devices, and other prostheses. The implant (10) may have fittings (80) on either end comprising fixed (100) or articulating (200) jaws, endplates, or other engagement structures. The implant (10) comprises a housing (40) with an internal rotor (60); an extending shaft (20); and a locking collar (70). The extending shaft (20) has an external helical groove (23) that meshes with an internal helical groove (63) on rotor (20). Length adjustment occurs by transforming axial movement of the extending shaft (20) into a rotary movement of the rotor (60) via helical engagement. The locking collar (70) comprises protrusion (73) engaging grooves (63) of rotor (60), thus providing a simple, positive locking mechanism without requiring the surgeon to apply excessive force to lock the length.

Abstract: An adjustable spinal implant 10 is provided for use in connecting elongate members 12 as well as in vertebral spacers such as corpectomy devices, intervertebral fusion devices, and other prostheses. The implant 10 may have fittings 80 on either end comprising fixed 100 or articulating jaws 200, endplates, or other engagement structures. The implant 10 comprises a housing 40 with an internal rotor 60; an extending shaft 20; and a locking collar 70. The extending shaft 20 has an external helical groove 23 that meshes with an internal helical groove 63 on the rotor 20. Length adjustment occurs by transforming axial movement of the extending shaft 20 into a rotary movement of the rotor 60 via helical engagement. The locking collar 70 comprises protrusion 73 engaging grooves 63 of rotor 60, thus providing a simple, positive locking mechanism without requiring the surgeon to apply excessive force to lock the length.