1
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 ...


2
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 ...


3
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 ...


4
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 ...


5
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 ...


6
Howland Robert S: Spinal segmental reduction derotational fixation system. Advanced Spine Fixation Systems Incorporated, WALL Jeffrey P, February 1, 1996: WO/1996/002200

The present invention relates to a spinal fixation system. The system comprises a screw (20) for pivotally attaching a bolt (50) to a vertebra to be treated. A pivot block (100) is threaded onto the bolt (50) to move the pivot block (100) up and down the bolt (50). A rod (16) is secured at each of i ...


7
Howland Robert S, Rinner James A, Tebbe Shawn R: Segmental lamina grapple hooks. Advanced Spine Fixation Systems Incorporated, WALL Jeffrey P, May 23, 1996: WO/1996/014801

A grapple hook spinal fixation system. The grapple hook system comprises a lower hook (10) attached to the lamina on the sacrum side of a vertebrae and an upper hook (30) attached to the lamina on the cranium side of a vertebrae. Bolts (50) are provided for attaching the lower hook (10) to the upper ...