Simplify Medical Pty Limited

Spinalmotion, Inc.

Other

Globus Medical, Inc.

Nuvasive, Inc.

Arthrocare Corporation

Yves P Arramon

David C Hovda

Malan De Villiers

Neville Jansen

Michael C Sherman

George T Delli-Santi

Mark Alvis

Lisa Metelman

Bryan Barr

Scott H McIntyre

Systems and methods for robotically preparing a disc space are provided for implantation of an intervertebral prosthetic disc. The system includes three-dimensional modeling to identify positions of vertebrae adjacent a surgical site and a disc selection interface in a computing system to allow the surgeon to select an intervertebral disc prosthesis for implantation. A bone cutting interface allows the surgeon to determine a bone cutting pattern tailored to both the three-dimensional positions of the vertebrae and the selected intervertebral disc. A robot controls a cutting device or guides a cutting device to cut the vertebral bone in the bone cutting pattern.

Robotic system and method for bone preparation for intervertebral disc prosthesis implantation

An intervertebral disc includes a superior endplate having an upper vertebral contacting surface and a lower bearing surface, wherein the upper vertebral contacting surface of the superior endplate has a central portion that is raised relative to a peripheral portion of the superior endplate, and wherein the lower bearing surface has a concavity disposed opposite the raised central portion. The disc includes an inferior endplate having a lower vertebral contacting surface and an upper surface, wherein the lower vertebral contacting surface of the inferior endplate has a central portion and wherein the upper bearing surface has a concavity disposed opposite the central portion. A core is positioned between the upper and inferior endplates, the core having upper and lower core bearing surfaces configured to mate with the bearing surfaces of the upper and inferior endplates. The upper vertebral contacting surface of the superior end plate has a different shape than the lower vertebral contacting surface of the inferior end plate.

Anatomy accommodating prosthetic inter vertebral disc with lower height

An intervertebral prosthesis for insertion between adjacent vertebrae includes an upper plate, a lower plate and a core. The core is retained between the upper and lower plates by a retention feature in the form of central projections on the plates and a corresponding opening in the core. The retention feature is designed to allow the plates to slide over the upper and lower surfaces of the core in the anterior/posterior direction and in the lateral direction and to allow the plates to rotate with respect to each other and the core. The retention feature is also designed to prevent contact between the first and second plates during sliding movement of the plates over the core. Each central projection has a diameter that is smaller than a smallest diameter of a central opening of the core.

Intervertebral prosthesis

Surgical instruments, systems and methods are described for selecting a size and cutting bone for inserting of an intervertebral disc prosthesis. The surgical instrument includes a combined intervertebral disc prosthesis sizing trial and a slot or channel cutter which is movable with respect to the sizing trial.

Surgical cutter instrument with trial

Embodiments of the disclosure provide systems and methods of removing a core from an intervertebral prosthetic disc. The method may include: securing a multipart prosthetic disc to a distal end of a removal instrument by grasping at least a portion of the multipart prosthetic disc between a pair of core removal arms on the placement instrument; inserting the pair of core removal arms between two prosthetic disc plates of the intervertebral prosthetic disc to distract the plates away from one another; and removing the core from the intervertebral prosthetic disc with the removal instrument. The removal instrument may include: an inner shaft connected to the pair of core removal arms; and an outer shaft movable with respect to the inner shaft and including an activation mechanism for causing the arms to grasp the core for removal.

Intervertebral prosthetic disc placement and removal systems

The disclosure provides an intervertebral disc and related methods. An upper plate includes an upper vertebra contacting portion and a lower bearing surface portion. The upper vertebra contacting portion includes a convex central portion, and a fin or anchoring element with a transverse hole therethrough. A lower plate has a lower vertebra contacting surface and an upper bearing surface. The lower vertebra contacting surface of the lower plate has a convex central portion. The upper bearing surface has a concavity disposed opposite the convex central portion and wherein the convex central portion and the concavity have nesting curvatures. A core positioned between the upper and lower plates has rigid upper and lower convex surfaces configured to slide and translate over the bearing surfaces of the upper and lower plates.

Artificial intervertebral disc with lower height

A dynamic intervertebral spacer includes a ring which is split on an anterior portion. A posterior portion of the ring acts as a torsion spring. After implantation, the ring is able to act as a spring between superior and inferior vertebral bodies, thus allowing dynamic bone growth in fusion procedures.

Intervertebral spacer that dynamically promotes bone growth

Anatomy accommodating prosthetic intervertebral disc with lower height

Systems and methods are provided for robotically assisted disc prosthesis selection and implantation. The system includes a 3D modeling system for creating a 3D model of first and second vertebra adjacent the intended surgical site and identifying and storing data for the positions of the first and second vertebrae. A computing system for stores and processes the 3D model and the position data. A robot connected to the computing system attaches to a plurality of instruments including sizing templates, trials, cutters or placement instruments for intervertebral disc prostheses. An interface on the computing system allows the surgeon to sequentially deliver the plurality of instruments with the robot to a registration position to improve the speed and accuracy of the surgical procedure.

Robot assisted intervertebral disc prosthesis selection and implantation system

Systems and methods for robotically distracting a disc space are provided for implantation of an intervertebral prosthetic disc. The system includes a 3D modeling system for creating a 3D model of first and second vertebra adjacent the disc space and identifying positions of the first and second vertebrae. A robotic distractor precisely opens the disc space just large enough to receive a selected intervertebral disc. A computing system stores and processes the 3D model and the positions of the first and second vertebrae before and after distraction. A surgeon interface on the computing system allows the surgeon to select an intervertebral disc prosthesis to be implanted and a desired distraction distance or force to be achieved.

Robotic systems and methods for distraction in intervertebral disc prosthesis implantation

An intervertebral spacer is designed particularly for patients who are not candidates for total disc replacement. The spacer maintains disc height and prevents subsidence with a large vertebral body contacting surface area while substantially reducing recovery time by eliminating the need for bridging bone. The intervertebral spacer or fusion spacer includes a rigid spacer body sized and shaped to fit within an intervertebral space between two vertebral bodies. In one embodiment, the spacer body has two opposed metallic vertebral contacting surfaces, at least one fin extending from each of the vertebral contacting surfaces and configured to be positioned within slots cut into the two vertebral bodies. Holes, if present, cover less than 40 percent of the entire vertebral body contacting surfaces to provide increased bone ongrowth surfaces and to prevent subsidence.

Growing community of inventors

Capitola, CA, United States of America

Yves P Arramon