초록 ▼

The system and method of the invention includes surgical instrumentation to enable a spine fusion procedure to proceed more accurately, efficiently and safely by allowing precision placement of an intervertebral implant, precision preparation of the area into which the bone graft is placed, and pre-

The system and method of the invention includes surgical instrumentation to enable a spine fusion procedure to proceed more accurately, efficiently and safely by allowing precision placement of an intervertebral implant, precision preparation of the area into which the bone graft is placed, and pre-selection of a pre-specified known shape of bone graft. In the order in which they are used, improvements in a distractor, box chisel, curette, an anterior or anterolateral type intervertebral cylindrically directed or peripheral rasp, intervertebrally operated vertebral bone plate shaping rasp, or roughing combination rasp, and an intervertebral sizing tool; any combination of which may be anatomically shaped. Several embodiments of bone graft implants are disclosed including annular flat surface implants having angled surfaces, implants having line slots to help in the insertion and orientation on insertion and in registering the implant with an impactor; any combination of which may be anatomically shaped or not. Two improved impactor embodiments and an improved curette are disclosed.

대표청구항 ▼

1. A rasp for use in spine surgery comprising:a head portion for fitting within an intervertebral space between two adjacent vertebral bone plates and having an upper face and a lower face and an outwardly disposed surface extending between said upper and said lower face, and wherein at least a port

1. A rasp for use in spine surgery comprising:a head portion for fitting within an intervertebral space between two adjacent vertebral bone plates and having an upper face and a lower face and an outwardly disposed surface extending between said upper and said lower face, and wherein at least a portion of one of said upper face, said lower face and said outwardly disposed surface includes a rasp surface; a shaft extending from said outwardly disposed surface to permit said head portion to be angularly displaced at least slightly within said intervertebral space; and a measuring scale on said shaft for indicating a depth of said head portion within said intervertebral space.