1
Robert S Howland, Richard M Salib, Kenneth Pettine: Interspinous segmental spine fixation device. Advanced Spine Fixation Systems, Christie Parker & Hale, March 5, 1996: US05496318 (642 worldwide citation)

A spinal fixation device and method for the stabilization of the spine after surgical procedures such as those related to degenerative disc diseases are described. The device comprises a spacer, which is placed between adjacent vertebrae when installed and a locking mechanism attached to the spacer. ...


2
Robert S Howland: Spine fixation system. Advanced Spine Fixation Systems Incorporated, Beehler & Pavitt, July 9, 1991: US05030220 (355 worldwide citation)

An implantable spinal fixation system includes a cancellous bone screw, such as a pedicle screw, carrying an improved saddle assembly, secured in place by a nut and which includes a simple and effective locking mechanism including a plurality of fingers which contacts each of the upper half saddle a ...


3
James A Rinner: Fusion mass constrainer. Advanced Spine Fixation Systems, Christie Parker & Hale, November 4, 1997: US05683394 (270 worldwide citation)

A bone fusion mass constrainer is useful for promoting fusion between a pair of adjacent vertebrae. The bone fusion mass constrainer includes a generally cylindrical cage assembly having an internal cavity with open top and bottom surfaces. The cage portion is intended to be positioned in contact wi ...


4
Robert S Howland: Branch connector for spinal fixation systems. Advanced Spine Fixation Systems, Christie Parker & Hale, July 19, 1994: US05330473 (210 worldwide citation)

A branch connector is useful for connecting a pair of spine rods in a spinal fixation system. The branch connector includes an upper saddle, a lower saddle and a bolt for clamping the saddles together. The upper and lower saddles mate to define a pair of openings for receiving the spine rods. The bo ...


5
Robert S Howland, James A Rinner, Shawn R Tebbe: Spinal fixation system. Advanced Spine Fixation Systems Incorporated, Christie Parker & Hale, July 27, 1999: US05928232 (204 worldwide citation)

A spinal fixation system utilizing grapple hooks comprising a lower hook attached to the lamina on the caudal-side of a vertebra and an upper hook attached to the lamina on the cranial-side of a vertebra. The hooks clamp the vertebra lamina in the center. Thus, the hooks clamp the lamina at the spin ...


6
Robert S Howland: Cervical spine rod fixation system. Advanced Spine Fixation Systems, Christie Parker & Hale, August 5, 1997: US05653708 (177 worldwide citation)

A cervical spine fixation system is described. The fixation system comprises a bone screw for implanting in the cervical vertebrae of the spine and for accommodating a clamping assembly. The clamping assembly comprises a rod receiving aperture which is angularly oriented a predetermined amount from ...


7
Robert S Howland: Segmental instrumentation of the posterior spine. Advanced Spine Fixation Systems Incorporated, Beehler & Pavitt, July 23, 1991: US05034011 (157 worldwide citation)

Improved instrumentation of the posterior spine includes a threaded screw for insertion into the sacrum, threaded adjusting rods and intravertebral hook device on the end of the adjusting rod. One end of the adjusting rod includes a pivotal clevis assembly and an automatic safety interlock for secur ...


8
Robert S Howland: Occipital clamp assembly for cervical spine rod fixation. Advanced Spine Fixation Systems Incorporated, Christie Parker & Hale, August 13, 1996: US05545164 (146 worldwide citation)

An occipital clamp assembly. The occipital clamp assembly comprises a lower occipital plate for attachment to the skull of a patient, wherein the lower occipital plate includes grooves in its upper surface. An occipital plate stud mounted in the lower occipital plate and upper occipital plates, havi ...


9
Robert S Howland: Closed connector for spinal fixation systems. Advanced Spine Fixation Systems, Christie Parker & Hale, January 30, 1996: US05487744 (135 worldwide citation)

A spinal fixation device for immobilizing a portion of a spine includes at least one spine rod and a plurality of bone screws that are threaded into an appropriate number of vertebrae and each of which includes a threaded end protruding from the vertebra. Clamps are used to fasten a spine rod to the ...


10
Robert S Howland: Spinal segmental reduction derotational fixation system. Advanced Spine Fixation Systems Incorporated, Christie Parker & Hale, August 13, 1996: US05545166 (134 worldwide citation)

The present invention relates to a spinal fixation system. The system comprises a screw for pivotally attaching a bolt to a vertebrae to be treated. A pivot block is threaded onto the bolt to move the pivot block up and down the bolt. A rod is secured at each of its ends to vertebrae on either side ...