1
Stephen Ritland: Retractor and method for spinal pedicle screw placement. Depuy Spine, Nutter McClennen & Fish, August 16, 2005: US06929606 (281 worldwide citation)

To avoid traditional muscle dissection required in the placement of a screw for a pedicle screw fixation, a retractor is provided having a guide of an appropriate length to provide access from the skin surface to the dorsal aspect of the vertebra over the pedicle. The retractor has a handle to provi ...


2
Alexander D Grinberg: Anterior buttress staple. DePuy Spine, Nutter McClennen & Fish, March 11, 2008: US07341591 (279 worldwide citation)

An anterior buttress staple and screw system is provided that can be used to hold an implant such as a disc prosthesis in place and thereby prevent its migration out of the spinal column. The buttress staple comprises a screw locking plate having a screw locking design that prevents the screw from b ...


3
Christopher W Sicvol, Erasmo Lopez, Ramon Ruberte: Percutaneous access devices and bone anchor assemblies. Depuy Spine, February 20, 2007: US07179261 (267 worldwide citation)

A percutaneous access device includes an inner tube and an outer tube disposed about at least a portion of the inner tube. The outer tube may be sized to span from a skin incision in a patient to a site proximate the spine of the patient. The distal end of the outer tube may be adapted to releasably ...


4
Missoum Moumene, Ian Burgess, George Joseph Ross, Christopher Sicvol, Frank Bono: Locking cap assembly for spinal fixation instrumentation. DePuy Spine SARL, Nutter McClennen & Fish, October 24, 2006: US07125426 (199 worldwide citation)

A spinal anchor assembly for securing a fixation element includes an anchor element and a twist-in cap. The anchor element is configured for attachment to a bone, typically by comprising a mono- or polyaxial screw or hook, and includes a proximal portion having an open slot for receiving the fixatio ...


5
William J Frasier, Timothy Beardsley, Connie P Marchek: Non-rigid surgical retractor. DePuy Spine, Nelson Mullins Riley & Scarborough, Kevin J Canning, EuiHoon Lee, June 7, 2011: US07955257 (197 worldwide citation)

The present invention provides a non-rigid retractor for providing access to a surgical site, such as a patient's spine, during a surgical process. When used in spinal surgery, the non-rigid retractor allows a surgeon to operate on one or more spinal levels. The non-rigid retractor includes at least ...


6
Stephen Ritland: Retractor and method for spinal pedicle screw placement. DePuy Spine, Nutter McClennen & Fish, October 4, 2005: US06951538 (193 worldwide citation)

To avoid traditional muscle dissection required in the placement of a screw for a pedicle screw fixation, a retractor is provided having a guide of an appropriate length to provide access from the skin surface to the dorsal aspect of the vertebra over the pedicle. The retractor has a handle to provi ...


7
Raymond Ross, Michael O&apos Neil, Mark Boomer: Modular disc prosthesis. DePuy Spine, Nutter McClennen & Fish, April 27, 2004: US06726720 (188 worldwide citation)

A modular implant that is effective to replace a damaged or degenerated spinal disc is provided. The implant includes a central core member having superior and inferior surfaces, a superior endplate member having a bone-contacting surface and a mating surface effective to mate with the superior surf ...


8
Robert E Simonson: Configured and sized cannula. DePuy Spine, Nutter McClennen & Fish, March 7, 2006: US07008431 (171 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


9
David Greg Anderson, Christopher W Sicvol, George Joseph Ross, Sean P Selover, Ramon Alberto Ruberte: Methods and devices for minimally invasive spinal fixation element placement. DePuy Spine, Nutter McClennen & Fish, May 5, 2009: US07527638 (149 worldwide citation)

Minimally invasive methods and devices for introducing a spinal fixation element into a surgical site in a patient's spinal column are provided. In general, the method involves advancing a spinal fixation element in a first, lengthwise orientation along a pathway extending from a minimally invasive ...


10
Jae Yoon Chung, Michael Carl Michielli: Laminoplasty cage. DePuy Spine, Nutter McClennen & Fish, March 30, 2004: US06712852 (140 worldwide citation)

A medical implant device for use in spinal surgery, and more preferably for use in laminoplasty surgery is provided. The implant is a cage-like member having a generally hollow, elongate body with open ends. The implant is formed from a generally hollow, elongate body having four sides: opposed ceph ...