Monorail system

摘要

Systems providing improved methods of performing a spinal fusion procedure and including a monorail instrument that protects the medial neural structures, includes a sliding platform for additional instrumentation and allows controlled delivery of various instruments for disc preparation and implant insertion. The monorail instrument engages other instruments, including various instruments utilized to prepare the disc space as well as spinal fusion implants, for guided and controlled insertion into the disc space. The monorail instrument may be a distractor, and may include flutes for preparation of the disc space.

主权项

1. A surgical system for use in spinal fusion surgery, the system comprising:
(a) an instrument for distracting a disc space comprising;
a leading end for insertion into the disc space in order to restore proper disc height;a trailing end; anda rod portion between the leading end and the trailing end comprising a monorail on a lateral side of the rod portion, the monorail comprising a single elongated member;wherein rotation of the instrument is configured to distract the disc space; (b) at least one chisel comprising a cavity sized to receive the monorail; (c) at least one insertion tool comprising a cavity sized to receive the monorail, wherein the monorail of the instrument and the cavity of either the chisel or the insertion tool are coupled to permit longitudinal movement between the instrument and either the chisel or the insertion tool, wherein, after rotation of the instrument, one of the insertion tool or the chisel is insertable into the disc space; and (d) an implant coupled to the insertion tool, the implant including a channel configured to engage the monorail; wherein once coupled, the instrument and either the chisel or the insertion tool cannot be uncoupled laterally; and wherein the system provides controlled access to the disc space during spinal fusion surgery.