Alphatec Spine, Incorporated

Scott Robinson

Steven Leong

Nathaniel DuBois

Frank Chang

Jonathan T Costabile

Sri Vishnubhotla

Fernando Olea

Nathan R Smith

Connor Hedges

A method of forming a composite titanium body for use in forming spinal implant interbodies includes selecting a metal alloy body, carving out a top portion and a bottom portion from the metal alloy body, and bonding a porous material to the carved-out top and bottom portions. Multiple pieces may be cut from the composite titanium body, each having a front face formed of the metal alloy, top and bottom portions formed of the porous material, and with a medial portion of the metal alloy extending from the front face to the back. Methods and devices for spinal interbodies having locking mechanisms to prevent bone screw back-out are also described.

Composite porous interbodies and methods of manufacture

Disclosed rod reduction systems include an elongated housing having a longitudinal bore and a transverse channel extending through the elongated housing at a non-zero degree angle relative to the longitudinal bore. An insert is slideable within the transverse channel between an outwardly displaced position and an inwardly biased position. The insert includes a threaded portion and a longitudinal bore alignable with the longitudinal bore of the elongated housing. A reducer is slidably receivable within the longitudinal bore of the elongated housing. The reducer may have a longitudinal bore therethrough, a drive shaft positioned within the longitudinal bore of the reducer.

Rod reduction instrument and method for spinal surgery

A system and a bone fixation plate for preventing a fastener from rotating so as to prevent the fastener from backing out is provided. The system includes a plate having an opening. A retention member having an arm extending into the opening is configured to engage the head of the fastener so as to prevent the fastener from rotating after the fastener is seated within a vertebral body or implant. In one embodiment, the retention member engages a top surface of the head of the fastener. In another embodiment, the retention member engages a side wall of the head of the fastener.

Bone fixation systems and methods

An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.

Intervertebral cage with porosity gradient

An instrument and inserter kit for providing a load to insert or retract an implantis provided. The instrument includes a cover having an engagement end opposite a distal end. The engagement end is configured to mount to an engagement feature of a handle of an inserter. The cover is an elongated member having a C-shaped profile having a dimension configured to receive a sliding member. The sliding member is seated over the cover and is weighted. The sliding member is configured to slide between a first radial lip and a second radial lip so as to provide an impacting force or retracting force on the instrument.

Instrument configured to generate an impact and retracting load on an inserter

An instrument with an implant holder disposed between a pair of tongs is provided. The implant holder may include a sleeve mechanically coupled to a distal end of a drive shaft and a pair of arms pivotably disposed within the sleeve. Movement of the sleeve in the distal direction pivots the pair of arms towards each other to grip the implant and movement of the sleeve in the proximal direction pivots the arms away from each other to automatically release the implant from the implant holder. The instrument may also include a dual mode drive shaft advancement mechanism that allows the implant holder to be advanced via an impact on the drive shaft from a tool such as a hammer or by rotation of the drive shaft.

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Encinitas, CA, United States of America

Scott Robinson