Sulzer Spine-tech Inc.

Spine-tech, Inc.

James Donald Corin

Stephen D Kuslich

George W Bagby

An implant is disclosed for use in spinal stabilization. In one preferred embodiment, the implant is described as including a hollow, cylindrical body having external threading and a plurality of openings formed radially through the body in communication with the body interior. The holes are positioned to chip bone into the implant as the implant is rotated.

Threaded spinal implant with convex trailing surface

Threaded spinal implant with bone ingrowth openings

A method for implanting an implant into a bore formed between opposing vertebra includes forming a bore between the vertebra and selecting an implant having a rigid body with exposed threads and a hollow interior and with holes formed through a shell of the body into the interior. The implant is placed within the bore with a longitudinal axis of the body aligned with an axis of the bore. The body is advanced into the bore to stretch an annulus.

Method for spinal fixation

Spinal implant

An implant is disclosed for use in spinal stabilization. In one preferred embodiment, the implant is a body having side walls extending between upper and lower walls with openings on the upper and lower walls. The side walls are solid and oppose disk material.

Non-threaded spinal implant

A surgical tool for use in spinal stabilization for fusing contiguous vertebra in an animal spine. The tool includes a distal end having external dimensions sized for the distal end to be inserted within the animal body and located against a tissue layer between contiguous vertebra. Cutting blades are carried on the distal end for cutting at least a portion of the layer and at least a portion of vertebra bodies to form a chamber within the contiguous vertebra. The cutting blades are selected for the chamber to be sized greater than the external dimensions of the distal end. A control element is provided for controlling a depth of cut of the cutting blade between at least first and second positions with the cutting blade retained within the external dimensions when in the first position and with the cutting blade extended to form the chamber when in the second position.

Intervertebral reamer construction

A surgical tool is disclosed for use in spinal stabilization for fusing contiguous vertebra in an animal spine. The tool includes a distal end having external dimensions sized for the distal end to be inserted within the animal body and located against a tissue layer between contiguous vertebra. Cutting blades are carried on the distal end for cutting at least a portion of the layer and at least a portion of vertebra bodies to form a chamber within the contiguous vertebra. The cutting blades are selected for the chamber to be sized greater than the external dimensions of the distal end. A control element is provided for controlling a depth of cut of the cutting blade between at least first and second positions with the cutting blade retained within the external dimensions when in the first position and with the cutting blade extended to form the chamber when in the second position.

Growing community of inventors

Dublin, OH, United States of America

James Donald Corin