1
Paul B Terry: Implant for preventing conjunctivitis in cattle. John C McMahon, Litman Kraai & Brown L L C, November 9, 1999: US05980928 (402 worldwide citation)

A method to reduce the likelihood of conjunctivitis in farm animals, especially cattle, includes the step of injecting an implant containing an antibiotic effective against the microbes associated with conjunctivitis subcutaneously into the animal in close proximity to the eye. Preferably the implan ...


2
Roger P Jackson: Polyaxial bone screw with spline capture connection. John C McMahon, April 6, 2004: US06716214 (353 worldwide citation)

A polyaxial bone screw having a bone implantable shank, a head and a retaining ring. The retaining ring includes an outer partial hemispherical surface and an inner bore with radially extending channels and partial capture recesses. The shank includes a bone implantable body with an external helical ...


3
Roger P Jackson: Anterior expandable spinal fusion cage system. John C McMahon, December 28, 2004: US06835206 (297 worldwide citation)

An apparatus and method for implanting an intervertebral cage containing a bone graft and fusing adjacent vertebrae together while maintaining or correcting the angular alignment and balance of the spine. An improved method for anterior interbody fusion to form a fused bone segment having a predeter ...


4
Roger P Jackson: Lockable swivel head bone screw. John C McMahon, April 9, 2002: US06368321 (251 worldwide citation)

A bone screw having a head and a shank. The shank having a ball thereon and the head having a socket for receiving the ball. The ball being externally threaded and the chamber communicating with the exterior of the head through a threaded bore. The ball being threadably received through the bore and ...


5
Roger Jackson: Transverse connectors for spinal rods. John C McMahon, Litman Kraai & Brown L L C, November 9, 1999: US05980523 (248 worldwide citation)

An improved system of transverse connectors for fixing the relative alignment of spinal rods in an osteosynthesis apparatus which can accommodate variations in the divergence and skew of the spinal rods and arch along a connector. In one embodiment of the invention a rotating hooked connector includ ...


6
Roger P Jackson: Anterior expandable spinal fusion cage system. John C McMahon, November 23, 2004: US06821298 (243 worldwide citation)

A fenestrated, hollow intervertebral cage containing a packed, harvested bone graft for fusing adjacent vertebrae together while maintaining or correcting the angular alignment and balance of the spine. Use of the device for an anterior interbody fusion results in a fused bone segment having a prede ...


7
Kevin A Rudolph: Nasal mask. Hans Rudolph, John C McMahon, February 27, 2001: US06192886 (215 worldwide citation)

A nasal mask configured to be as unobtrusive as possible while providing an air-tight seal around the nose of a wearer comprises a flexible nasal cup having a nasal opening formed by an inner circumferential edge or rim thereof and opening into a nasal chamber. The cup also includes inner and outer ...


8
Roger P Jackson: Anterior variable expandable fusion cage. John C McMahon, August 10, 2004: US06773460 (209 worldwide citation)

An interbody device for use between a pair of adjacent vertebrae includes a body and at least one expansion member. The body has upper and lower walls that are joined by a rear wall that functions as a spring hinge. The walls have anterior ends that are supported in a non-expanded configuration by s ...


9
Roger P Jackson: Bone screw threaded plug closure with central set screw. John C McMahon, May 1, 2001: US06224598 (200 worldwide citation)

A threaded plug closure for an open-ended bone screw has a center bore and is threaded to receive a set screw. The set screw includes a breakaway head and a base which is slotted to permit removal following installation. The base includes an axial point and circumferential ring which engage the cent ...


10
Roger P Jackson: Orthopedic implant rod reduction tool set and method. John C McMahon, January 9, 2007: US07160300 (198 worldwide citation)

A tool set for implanting a rod in a human spine in conjunction with bone screws. The tool set includes a pair of end guide tools that receive opposite ends of the rod in channels and under manipulation by a surgeon facilitate transport of the rod toward the bone screws attached to the guide tools. ...