21
Paul A Spence, Warren P Williamson IV, Mark Ortiz: Device to permit offpump beating heart coronary bypass surgery. Origin Medsystems, Alan W Cannon, Bozicevic Field & Francis, January 15, 2002: US06338712 (90 worldwide citation)

A system for manipulating a heart during cardiac surgery permits coronary surgery on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the system. The system locates a suspension head near the apical region of the h ...


22
Warren P Williamson IV, Craig B Berky, Paul A Spence, Mark Ortiz: Tissue punching instrument. IDx Medical, Terry M Gernstein, June 27, 2000: US06080173 (84 worldwide citation)

A surgical punch prevents tissue debris associated with punching a hole in a patient's tissue, such as an aorta during an anastomosis procedure, from reentering the patient's bloodstream. The punch includes elements that move the debris away from the cutting site and then capture that debris inside ...


23
Paul A Spence, Mark Ortiz: Heart valve repair apparatus and methods. Paul A Spence, Wood Herron & Evans L, January 23, 2007: US07166126 (77 worldwide citation)

Valve repair apparatus and methods for ensuring proper coaptation and operation of the leaflets of a heart valve. Main aspects of the disclosure relate to devices including a support member configured for attachment to the heart valve annulus, a post extending from the support member away from the p ...


24
Jeffrey Swayze, Mark Ortiz: Electroactive polymer-based pump. Ethicon Endo Surgery, Nutter McClennen & Fish, April 8, 2008: US07353747 (57 worldwide citation)

Methods and devices for pumping fluid are disclosed herein. In one exemplary embodiment, a pump is provided having a first member with a passageway formed therethrough, and a plurality of electrically expandable actuators in communication with the first member and adapted to change shape upon the ap ...


25
Warren P Williamson IV, Paul A Spence, Mark Ortiz, George A Keller, Harry Leonard Green II: Tissue stabilizer having an articulating lift element. Alan W Cannon, Bozicevic Field & Francis, June 18, 2002: US06406424 (39 worldwide citation)

Devices and methods are disclosed for stabilizing tissue within a patient's body during a surgical operation to provide a relatively motionless surgical field, such as during a coronary artery bypass graft procedure. The devices include tissue stabilizers which engage and provide stabilization ...


26
Mark Ortiz, Paul A Spence: Implantable heart assist devices and methods. Paul A Spence, Wood Herron & Evans L, October 26, 2004: US06808483 (36 worldwide citation)

Heart support and assist devices for supporting and assisting the pumping action of the heart. Various embodiments include mesh support devices, devices using straps, spiral-shaped devices, catheter-based devices and related methods.


27
Paul A Spence, Warren P Williamson IV, George Christakis, Mark Ortiz, Craig B Berky, Douglas P Allen, Matthew J Huddleston, Delbert Ted Leimbach, Cecil R Robinson, E Dale VanHoose, Thomas J Ward, Marty J Warnecke: Apparatus and method for performing an anastomosis. Origin Medsystems, Thelen Reid & Priest, May 20, 2003: US06565581 (34 worldwide citation)

An anastomosis is performed using a flexible mounting structure mounted on the outside of at least one vessel. Fasteners extend through the vessel and are bent towards the incision to attach the flexible mounting structure to the vessel in a manner that controls the edge of the vessel adjacent to th ...


28
Mark Ortiz: Electroactive polymer actuated gastric band. Ethicon Endo Surgery, August 3, 2010: US07766815 (32 worldwide citation)

Methods and devices are provided for remotely adjusting a size of a gastric band disposed around a patient's stomach. In one exemplary embodiment, a gastric band is provided having a first end and a second end that mate to one another to encircle a stomach. A latch mechanism can be formed on the ban ...


29
William P Williamson IV, Paul A Spence, Mark Ortiz, George A Keller, Harry Leonard Green II: Tissue stabilizer having an articulating lift element. Law Office of Alan W Cannon, February 5, 2008: US07326177 (30 worldwide citation)

Devices and methods are disclosed for stabilizing tissue within a patient's body during a surgical operation to provide a relatively motionless surgical field, such as during a coronary artery bypass graft procedure. The devices include tissue stabilizers which engage and provide stabilization to a ...


30
Paul A Spence, Warren Williamson IV, Mark Ortiz: Device to permit offpump beating heart coronary bypass surgery. Cardiothoracic Systems, Alan W Cannon, June 1, 2004: US06743170 (13 worldwide citation)

A system for manipulating a heart during cardiac surgery permits coronary surgery on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the system. The system locates a suspension head near the apical region of the h ...