Depuy Spine, Inc.

Conor Russell McCrea

Christopher L Ramsay

Michael J O'Neil

David Greg Anderson

J Riley Hawkins

Michael D Sorrenti

Douglas Raymond

David D Konieczynski

Charles M Bartish

Patrick Fatyol

Jeffrey P Brousseau

Stephen Connolly

Ed Zalenski

A vertebral distractor system includes a crossbar and a first distractor arm having a first end portion coupled to the crossbar and a second end portion with a first bore configured to axially receive a first coupling portion of a first pin. A second distractor arm includes a third end portion coupled to the crossbar and a fourth end portion with a second bore configured to receive a second coupling portion of a second pin. A first pin locking mechanism is configured to couple the first coupling portion and the first distractor arm within the first bore such that when the first coupling portion and the first distractor arm are coupled, movement of the first pin outwardly of the first bore is not allowed.

Automatic locking casper distractor

A prosthetic is provided for replacing a vertebral disc. The prosthesis can comprise first and second endplates formed of a ceramic material, each including an articulating contact surface and a bone facing surface. The contact surface of the first endplate can have a shape complementary to the contact surface of the second endplate, thereby facilitating articulation of the first and second endplates while in contact with one another. The device can further include at least one non-ceramic bone attachment element mated with at least one of the bone facing surfaces, such that the bone attachment element covers less than a full area of the bone facing surface.

Ceramic disc prosthesis

A simple, safe implantable bone screw, and a method for distracting two bone segments, is provided. In general, the bone screw includes a shank having a threaded proximal portion and a distal portion with a major diameter that is less than a minor diameter of the threaded proximal portion. A transitional region of decreasing diameter can be disposed between the threaded proximal portion and the distal portion, and a driver receiving element is preferably disposed on a proximal end of the bone screw. In use, the proximal and distal portions of the bone screw are adapted to engage two segments of bone, and to create a distraction force between the two segments of bone.

Distraction screw

A device for use by a surgeon to determine the distance between two points within a surgical site, the device having a gripper retractably and flexibly connected to a body by a retractor having a proximal spring portion and a distal portion comprising a cable.

Device for determining distance between two points in a surgical site

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Brookline, MA, United States of America

Conor Russell McCrea