Abstract: Techniques and systems for distracting a spinal disc space and supporting adjacent vertebrae are provided. Trial instruments are insertable into the disc space to determine a desired disc space height and to select a corresponding implant. Implants can be also be self-distracting and the implant providing the desired disc space height can be implanted in the spinal disc space.

Abstract: Methods and instrumentation particularly adapted for disc space preparation for insertion of implants from an anterior approach to the spine are provided. The instruments include a guide sleeve defining a channel having overlapping cylindrical working channel portions and lateral non-distracting extensions extending from reduced thickness wall portions. The guide sleeve has an overall reduced width configuration. A pair of distractors are provided. A first distractor includes a shaft and distal tip, and the second distractor includes a shaft and distal tip. The first and second distractors can be used with the guide sleeve. Methods using the disclosed instruments are also provided.

Abstract: Methods and instrumentation for vertebral interbody fusion are provided. Sleeve assemblies can be provided with a reduced width portion adjacent the distal end to limit the amount of retraction of the surrounding vascular and neural structures required for the procedure. A sleeve assembly can be provided with a guide sleeve removably engaged to a guide sleeve housing. The guide sleeve can be removed during surgery to improve the surgeon's viewing of the operative site while the guide sleeve housing maintains disc space distraction. Methods and instruments for inserting and using the guide sleeve housing are also provided.

Abstract: The present invention is directed to a surgical instrument assembly that includes an operative element and an insertion instrument removably engageable to the operative element. The insertion instrument is positionable in a patient with the operative element engaged thereto to position the operative element at an operative site in the patient. A transfer instrument is removably engageable to the operative element when the operative instrument is located at the operative site. The insertion instrument can then be removed. Methods for using the surgical instrument assembly are also disclosed.

Abstract: Methods and instrumentation for vertebral interbody fusion are provided. Sleeve assemblies can be provided with a reduced width portion adjacent the distal end to limit the amount of retraction of the surrounding vascular and neural structures required for the procedure. A sleeve assembly can be provided with a guide sleeve removably engaged to a guide sleeve housing. The guide sleeve can be removed during surgery to improve the surgeon's viewing of the operative site while the guide sleeve housing maintains disc space distraction. Methods and instruments for inserting and using the guide sleeve housing are also provided.

Abstract: The present invention is directed to a surgical instrument assembly that includes an operative element and an insertion instrument removably engageable to the operative element. The insertion instrument is positionable in a patient with the operative element engaged thereto to position the operative element at an operative site in the patient. A transfer instrument is removably engageable to the operative element when the operative instrument is located at the operative site. The insertion instrument can then be removed. Methods for using the surgical instrument assembly are also disclosed.

Abstract: Methods and instrumentation particularly adapted for disc space preparation for insertion of implants from an anterior approach to the spine are provided. The instruments include a guide sleeve defining a channel having overlapping cylindrical working channel portions and lateral non-distracting extensions extending from reduced thickness wall portions. The guide sleeve has an overall reduced width configuration. A pair of distractors are provided. A first distractor includes a shaft and distal tip, and the second distractor includes a shaft and distal tip. The first and second distractors can be used with the guide sleeve. Methods using the disclosed instruments are also provided.

Abstract: Methods and instrumentation for vertebral interbody fusion are provided. Sleeve assemblies can be provided with a reduced width portion adjacent the distal end to limit the amount of retraction of the surrounding vascular and neural structures required for the procedure. A sleeve assembly can be provided with a guide sleeve removably engaged to a guide sleeve housing. The guide sleeve can be removed during surgery to improve the surgeon's viewing of the operative site while the guide sleeve housing maintains disc space distraction. Methods and instruments for inserting and using the guide sleeve housing are also provided.

Abstract: A universal quench press is used for the precision quenching of gears, bearing rings, saw blades, slitting knives, cylindrical parts, flat parts, dished parts, and other articles. A set of quenching dies reduce or eliminate the distortions in size, roundness, taper, and flatness encountered in manufacturing processes prior to the press quenching process and/or operation. The press has a plurality of posts or tie-rods configured to distribute the forces of the applied loads uniformly. Provisions are made for a plurality of generally concentric rams with all of the rams powered by hydraulic or pnuematic cylinders or other force exerting device or devices to provide a uniform and evenly distributed force. An automatic quench media splash guard seals the quenching chamber during operation and requires absolutely no set-up or operating adjustments or changes.