APPARATUS FOR FUSING ADJACENT BONE STRUCTURES

摘要

The present invention relates to a system (200) for drilling a bore in adjacent vertebrae (V1,V2) to facilitate the insertion of a fusion implant (100), which comprises: a surgical retractor (202) including a sleeve member (210) having proximal (212) and distal (214) end portions and defining a longitudinal opening, the distal end portion (214) configured for insertion at least partially into an intervertebral space between adjacent opposed vertebrae (V1,V2) to distract the adjacent vertebrae (V1,V2), the sleeve member (210) including an internal threaded portion (1240); a drill instrument (204) positionable within the longitudinal opening of the surgical retractor (202), the drill instrument (204) including a drill member (224) having a distal cutting head and an external threaded portion (2280) engageable with the internal threaded portion (1240) of the retractor (202) whereby rotation of the drill instrument (204) causes distal translation of the drill instrument (204) relative to the surgical retractor (202). The present invention relates to a system (200) for drilling a bore in adjacent vertebrae (V1,V2) to facilitate the insertion of a fusion implant (100), which comprises: a surgical retractor (202) including a sleeve member (210) having proximal (212) and distal (214) end portions and defining a longitudinal opening, the distal end portion (214) configured for insertion at least partially into an intervertebral space between adjacent opposed vertebrae (V1,V2) to distract the adjacent vertebrae (V1,V2), the sleeve member (210) including an internal threaded portion (1240); a drill instrument (204) positionable within the longitudinal opening of the surgical retractor (202), the drill instrument (204) including a drill member (224) having a distal cutting head and an external threaded portion (2280) engageable with the internal threaded portion (1240) of the retractor (202) whereby rotation of the drill instrument (204) causes distal translation of the drill instrument (204) relative to the surgical retractor (202).