1
Paul Birkmeyer, Michael Zajack, Erasmo Lopez, Ramon Ruberte: Spinal fixation element and methods. DePuy Spine, Nutter McClennen & Fish, June 16, 2009: US07547318 (50 worldwide citation)

A spinal fixation element is provided having a feature formed thereon that facilitates placement of the spinal fixation element through an access device, thus allowing the spinal fixation element to be positioned in relation to a spinal anchor that is coupled to the access device and that is implant ...


2
Anne Drzyzga, William Frasier, Michael Zajack, Michael DeFusco, Connie Marchek, Nicholas Pavento, Ginger Boyer, Sara Dziedzic: Surgical retractor for use with minimally invasive spinal stabilization systems and methods of minimally invasive surgery. DePuy Spine, April 5, 2011: US07918792 (49 worldwide citation)

A surgical retractor for use with a spinal stabilization system including a plurality of bone anchors and a plurality of anchor extensions. The surgical retractor includes a frame positionable between a first anchor extension connected to a first bone anchor implanted in a first vertebra and a secon ...


3
Paul Birkmeyer, Michael Zajack, Erasmo Lopez, Ramon Alberto Ruberte: Spinal fixation element and methods. DePuy Synthes Products, Nutter McClennen & Fish, September 9, 2014: US08828005 (1 worldwide citation)

A spinal fixation element is provided having a feature formed thereon that facilitates placement of the spinal fixation element through an access device, thus allowing the spinal fixation element to be positioned in relation to a spinal anchor that is coupled to the access device and that is implant ...


4
William J Frasier, Connie P Marchek, Timothy Beardsley, Michael Zajack: Retractor blade extender tower. Depuy Spine, Lahive & Cockfield, Kevin J Canning, December 1, 2009: US07625339 (1 worldwide citation)

A blade extending tower for setting blade depth on retractors having telescoping or extending blades. The blade extending tower features a base, a column extending from the base, and mating features on the column configured to engage the blades of a retractor to extend the blades to a desired blade ...


5
William J Frasier, Connie P Marchek, Timothy Beardsley, Michael Zajack: Retractor blade extender tower. DePuy Synthes Products, Nelson Mullins Riley & Scarborough, June 7, 2016: US09357908

A blade extending tower is provided for setting blade depth on retractors having telescoping or extending blades. The blade extending tower features a base, a column extending from the base, and mating features on the column configured to engage the blades of a retractor to extend the blades to a de ...


6
Anne Drzyzga, William Frasier, Michael Zajack, Michael DeFusco, Connie Marchek, Nicholas Pavento, Ginger Boyer, Sara Dziedzic: Surgical retractor for use with minimally invasive spinal stabilization systems and methods of minimally invasive surgery. Philip S Johnson, Johnson & Johnson, January 24, 2008: US20080021285-A1

A surgical retractor for use with a spinal stabilization system including a plurality of bone anchors and a plurality of anchor extensions. The surgical retractor includes a frame positionable between a first anchor extension connected to a first bone anchor implanted in a first vertebra and a secon ...


7
Paul Birkmeyer, Michael Zajack, Erasmo Lopez, Ramon A Ruberte: Spinal fixation element and methods. Depuy Spine, Nutter Mcclennen & Fish, September 29, 2005: US20050215999-A1

A spinal fixation element is provided having a feature formed thereon that facilitates placement of the spinal fixation element through an access device, thus allowing the spinal fixation element to be positioned in relation to a spinal anchor that is coupled to the access device and that is implant ...


8
William J Frasier, Connie P Marchek, Timothy Beardsley, Michael Zajack: Retractor blade extender tower. DePuy Spine, Lahive & Cockfield, June 15, 2006: US20060129033-A1

A blade extending tower for setting blade depth on retractors having telescoping or extending blades. The blade extending tower features a base, a column extending from the base, and mating features on the column configured to engage the blades of a retractor to extend the blades to a desired blade ...


9
Robert E Simonson, Eric Kolb, David Konieczynski, Jonathan Fanger, Michael Zajack, Michael Jacene: Methods and devices for retracting tissue in minimally invasive surgery. Philip S Johnson, Johnson & Johnson, February 9, 2006: US20060030861-A1

Minimally invasive methods and devices are described for providing access to a surgical site proximate the anterior region of a patient's spine. In an exemplary embodiment, the device is a cannula that includes a distal end adapted to mate with the anterior surface of a vertebra. An exemplary method ...


10
Paul Birkmeyer, Michael Zajack, Erasmo Lopez, Ramon A Ruberte: Spinal fixation element and methods. DePuy Spine, Nutter Mcclennen & Fish, August 27, 2009: US20090216328-A1

A spinal fixation element is provided having a feature formed thereon that facilitates placement of the spinal fixation element through an access device, thus allowing the spinal fixation element to be positioned in relation to a spinal anchor that is coupled to the access device and that is implant ...