摘要 |
Methods and instrumentation particularly adapted for disc space preparation for insertion of implants from an anterior approach to the spine are provided. The instruments include a guide sleeve (400) defining a channel (430) having overlapping cylindrical working channel portions (407, 409) and lateral non-distracting extensions (418, 420) extending from reduced thickness wall portions (414, 415). The guide sleeve (400) has an overall reduced width configuration. A pair of distractors (356, 386) are provided. A first distractor (350) includes a shaft (354) and distal tip (356), each having convex walls. A second distractor (380) includes a shaft (384) and distal tip (386) including a recessed area (394) at least along the tip (386). The first distractor (350) is at least partially received within the recessed area (394) of the second distractor (380) when the first and second distractors (350, 380) are in side-by-side relation and a reduced overall width of the distractors (350, 380) is obtained. Preferably, the first and second distractors (350, 380) are used with the guide sleeve (400). Methods using the disclosed instruments are also provided. |
申请人 |
SDGI HOLDINGS, INC.;BURKUS, J., KENNETH;ZDEBLICK, THOMAS, A.;MCGAHAN, THOMAS, V.;DERIDDER, STEVEN, D. |
发明人 |
BURKUS, J., KENNETH;ZDEBLICK, THOMAS, A.;MCGAHAN, THOMAS, V.;DERIDDER, STEVEN, D. |