초록 ▼

Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in prepar

Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve. Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted to restore the normal angular relationship of the vertebrae adjacent to that disc space. An extended outer sleeve having extended portions capable of maintaining the vertebrae distracted in their normal angular relationship is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleeve removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.

대표청구항 ▼

[ What is claimed is:] [1.]1. Apparatus for preparing a surgical implantation site in the spine for implantation of an interbody spinal implant at least in part into a disc space between two adjacent vertebral bodies, said apparatus comprising a hollow generally tubular member having a proximal end,

[ What is claimed is:] [1.]1. Apparatus for preparing a surgical implantation site in the spine for implantation of an interbody spinal implant at least in part into a disc space between two adjacent vertebral bodies, said apparatus comprising a hollow generally tubular member having a proximal end, distal end, and at least a first disc penetrating extension extending from said distal end for insertion into the disc space between two adjacent vertebral bodies, said first disc penetrating extension being oriented in a fixed position relative to a mid-longitudinal axis through said tubular member and having a portion for bearing against each of the adjacent endplates of the adjacent vertebral bodies, said portion of said first disc penetrating extension having opposed upper and lower surfaces adapted to bear against each of the adjacent vertebral bodies from within the disc space to align the adjacent vertebrae.