Spinadyne, Inc.

Disc Motion Technologies, Inc.

Manoj Krishna

Tai Friesem

Steven Brown

Jose Fernandez

William E Harbottle

Tai Friesen

The present invention provides a dynamic stabilization device positionable about a portion of a spinal column. The stabilization device may generally include a first component and a second component, where the first and second components are movably coupled to one another to define an arcuate path of motion. The stabilization device may also include one or more adjustment elements positionable within first and second adjustment openings to affect the path of motion between the first and second components and/or the behavior and characteristics of the movement. In addition, one or more resistive elements may be adjustably positionable within either and/or both of the first and second adjustment openings to provide resistance and/or dampening of the forces experienced as the first and second components move relative to one another. The stabilization device may further define a joint having three degrees of freedom to adapt to movement of a spinal column.

Dynamic spinal stabilization device

Lumbar disc and facet joint replacement prosthesis are provided. The lumbar disc prosthesis includes first member having a vertebral disc contact surface and a recessed portion on an opposing surface thereof and a second member having a vertebral disc contact surface and a protruding portion on an opposing surface thereof. The protruding portion of the second member engages the recessed portion of the first member in use. The first and second members are provided with at least a middle section and two end sections. The recessed and protruding portions are provided in the middle section of the respective members and each end section has a narrowing taper. The facet joint prosthesis includes a first member for attachment to a first posterior lumbar disc and a second member for attachment to a second posterior lumbar disc. At least a part of the first member is telescopically mounted in at least a part of the second member.

Posteriorly inserted artificial disc and an artificial facet joint

A lumbar disc prosthesis is provided including a first member with a vertebral disc contact surface and a recessed portion on an opposing surface thereof; a second member with a vertebral disc contact surface and a protruding portion on an opposing surface thereof. The protruding portion of the second member engages with the recessed portion of the first member in use. A facet joint prosthesis is provided, including a first member for attachment to a first posterior lumbar disc in use and a second member for attachment to a second posterior lumbar disc in use, where at least a part of the first member is telescopically mounted in at least a part of the second member in use.

Posterior spinal arthroplasty system

Spinal prosthesis and facet joint prosthesis

The present invention provides a pedicle screw system, which may include a bone fixation element having an elongate body. The elongate body may include a threaded segment having one or more spiral-oriented grooves, a neck segment adjacent to the threaded segment, and a head segment which is able to receive and/or couple to an orthopedic instrument or implant. The pedicle screw system may further include an anchoring element movably positionable about the bone fixation element. The anchoring element may include one or more elongate teeth which may be slidably positionable into a desired tissue region.

Pedicle screw system

Dynamic connector for spinal device

A system and method for lumbar arthroplasty in a spinal segment is provided having first and second vertebral bodies, where a intervertebral disc prosthesis may be positioned between the first and second vertebral bodies such that a center of rotation of movement of the vertebral bodies about the prosthesis is located substantially proximate to the upper endplate of the second vertebral body and substantially proximate to the posterior one-third portion of the second vertebral body. In addition, a stabilization element may be affixed to the first and second vertebral bodies such that a range of motion of the stabilization device defines a center of rotation substantially proximate to that of the intervertebral disc prosthesis.

Growing community of inventors

Yarm, United Kingdom

Manoj Krishna