Alphatec Spine, Incorporated

Simpirica Spine, Inc.

Anand Parikh

Nathan Meyer

Louis Calvin Fielding

Jens Peter Timm

Clark Hutton

Wally Gillespie

Garrett Gleeson

Hugues Malandain

Ian Bennett

Martin Joseph Bouliane

Eller Torres, Iv

Darin Charles Gittings

Todd Alamin

Colin Cahill

Jeffrey D Schwardt

Manish Kothari

Jonathan T Costabile

Carmen Walters

Thomas Perry

Richard Loquet

The instruments and methods of the present disclosure include an outer shaft, an inner shaft, a roller, and an actuator. In some examples, the outer shaft includes a lumen extending from a proximal end to a distal end. The inner shaft is disposed within the lumen. The roller rotatably is coupled with the distal end at an axis and configured to engage the fixation rod. The actuator operably couples with the inner shaft to translate the inner shaft within the lumen and cause rotation of the roller to impart linear movement on the fixation rod.

Instrument and method for in situ rod adjustment

A method for reducing a fixation rod is provided. The method minimizes the surgical corridor by performing fixation within the surgical corridor defined by the screw extender. The screw extender is attached to the spinal implant. The method includes the steps of coupling the proximal end of a first cannulated body with the screw extender and rotating a second cannulated body within the first cannulated body. The method proceeds to the step of actuating a rod pusher with a first driving feature so as to engage the rod pusher with the fixation rod. The rod pusher includes a bore. The method proceeds to the step of rotating an inserter shaft within first cannulated body, second cannulated body and bore of the rod pusher, the inserter shaft including a proximal end with a second driving feature and a distal end with a setscrew attachment feature.

Instrument and method for reducing and securing spinal rods

An instrument for reducing a fixation rod within a screw extender that attaches to a spinal implant includes first, second, and third cannulated bodies and an inserter shaft. The first cannulated body includes a proximal end that couples with the screw extender. The second cannulated body rotates within the first cannulated body and includes a proximal end with a first driving feature and a distal end with an internal threaded portion. The third cannulated body includes a proximal end that engages the internal threaded portion and a distal end with a rod pusher for engaging the fixation rod. The inserter shaft rotates within the third cannulated body and includes a proximal end with a second driving feature and a distal end with a setscrew attachment feature.

An instrument for correction of spinal deformities includes an inner member with a proximal portion configured to receive a corrective force and a distal coupling portion configured to transfer the corrective force to a spinal implant in a vertebra. A slot extends transversely through the coupling portion and is configured to guide a fixation rod into the spinal implant. A threaded sleeve includes an external thread and a thru-bore that slides relative to the proximal portion. An outer member couples with the proximal portion and threadably engages the external thread to apply a reduction force as the outer member rotates relative to the inner member. A reduction blade includes a proximal interlocking portion that removably couples with the threaded sleeve and a distal rod engagement feature configured to engage the fixation rod and transfer the reduction force to reduce the fixation rod into the spinal implant.

Spinal deformity correction instruments and methods

An orthopedic instrument for compression and distraction of bone segments includes a first receiver, a second receiver, a positioner member, and a guide member. The first receiver includes a first receiver aperture that receives a first screw extender. The second receiver includes a second extender aperture that receives a second screw extender. The positioner member translates the second receiver relative to the first receiver to apply one of a compression and a distraction force on the screw extenders. The guide member parallel to the positioner member guides the second receiver relative to the first receiver.

Instrument and method for spinal compression and distraction

An instrument for multilevel compression and distraction of vertebrae in a spinal column includes a first arm, a second arm, a third arm, a linking member, and a coupler. The first arm includes a distal end with a first aperture for receiving a first screw extender that attaches to a first vertebra. The second arm includes a distal end with a second aperture for receiving a second screw extender that attaches to a second vertebra. The third arm includes a distal end with a third aperture for receiving a third screw extender that attaches to a third vertebra. The linking member pivotally links proximal ends of the first, second, and third arms. The coupler positions the distal ends of the first arm and the second arm relative to the third arm to compress and distract the first vertebra and the second vertebra relative to the third vertebra.

A device may be used to limit flexion of the spine without substantially limiting extension of the spine. Various accessories, instruments, and methods may be used to help deploy the flexion limiting device, manipulate, and adjust it.

Device and accessories for limiting flexion

A system for restricting flexion of a spinal segment in a patient comprises a constraint device having a tether structure and a compliance member coupled with the tether structure. The tether structure is adapted to be coupled with a superior spinous process and a sacrum. The system also includes an anchor member that is anchored to the sacrum. The anchor member has an attachment feature that is adapted to couple with the constraint device.

Sacral tether anchor and methods of use

A constraining apparatus includes a constraining structure that captures a first and a second anatomical structure. A motion limiting member coupled with the constraining structure is adapted to provide a force resistant to relative movement of the first anatomical structure away from the second anatomical structure. A regulating member is detachably coupled with the motion limiting member or the constraining structure and is adapted to change the resistant force provided by the motion limiting member when the regulating member is in direct engagement with the motion limiting member or constraining structure.

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San Diego, CA, United States of America

Anand Parikh