1
Charles D Ray, Eugene A Dickhudt: V-thread fusion cage and method of fusing a bone joint. Surgical Dynamics, Fliesler Dubb Meyer & Lovejoy, October 9, 1990: US04961740 (703 worldwide citation)

A fusion cage 10 includes a cage body defining an internal cavity with an inner surface and an outer surface. The outer surface defines a helical thread 12 comprised of a plurality of turns which define valleys 14 therebetween. Located in the valleys 14 are perforations 13 which provide communicatio ...


2
Charles D Ray, Eugene A Dickhudt: Method for surgical implantation of a prosthetic spinal disc nucleus. RayMedica, Kinney & Lange, October 8, 1996: US05562736 (630 worldwide citation)

A method for surgically implanting a prosthetic spinal disc nucleus body into a human spinal disc space is disclosed. The spinal disc space contains adjacent vertebrae and an anulus having a posterior side. The method includes cutting a flap through the anulus in the disc space to create an opening. ...


3
Charles D Ray, Eugene A Dickhudt, Philip J Ledoux, Beth A Frutiger: Prosthetic spinal disc nucleus. RayMedica, Kinney & Lange P A, October 7, 1997: US05674295 (595 worldwide citation)

An elongated, pillow shaped prosthetic spinal disc nucleus body for implantation into a human intervertebral spinal disc, made of a hydrogel core and a flexible constraining jacket surrounding the hydrogel material core that permits the hydrogel core to expand and contract. The hydrogel core has a l ...


4
Charles D Ray, Eugene A Dickhudt: Surgical method and apparatus for fusing adjacent bone structures. Surgical Dynamics, Fleisler Dubb Meyer & Lovejoy, June 25, 1991: US05026373 (594 worldwide citation)

A fusion cage 10 having an external thread 12 can be surgically inserted into a threaded bore extending laterally between the adjacent bony structures such as two vertebrae 94, 95 with the thread 12 penetrating into cancellous bone of each of the vertebrae 94, 95. The fusion cage 10 is easily screwe ...


5
Charles D Ray, Eugene A Dickhudt, Robert L Assell: Prosthetic spinal disc nucleus. RayMedica, Dicke Billig & Czaga P A, October 20, 1998: US05824093 (453 worldwide citation)

An elongated, capsule shaped prosthetic spinal disc nucleus body for implantation into a human inter vertebral spinal disc, made of a hydrogel core and a constraining jacket surrounding the hydrogel core that permits the hydrogel core to deform and reform. The constraining jacket is configured to al ...


6
Andrew H Cragg, Robert L Assell, Eugene A Dickhudt: Method and apparatus for spinal distraction and fusion. TranS1, Knobbe Martens Olson & Bear, July 26, 2005: US06921403 (221 worldwide citation)

The invention provides an implantable spinal distraction/fusion rod with varied thread pitch and diameters along different portions of its length that it is capable of distracting two or more vertebral bodies relative to each other and/or facilitating the procedure of fusing the vertebral bodies tog ...


7
Eugene A Dickhudt: Balloon lead and inflator. Medtronic, Robert J Klepinski, Joseph F Breimayer, John L Rooney, May 28, 1985: US04519403 (179 worldwide citation)

A lead for implantation in the epidural space has an inflatable balloon which is sealed against a first side of the lead so it inflates away from the first side. The balloon contacts walls of the epidural space and urges an electrode on the first side against the dura. A syringe for inflating the ba ...


8
Eugene A Dickhudt, Roger A Paulson: Biomedical stimulation lead. Medtronic, Robert J Klepinski, John L Rooney, Joseph F Breimayer, November 15, 1983: US04414986 (147 worldwide citation)

A biomedical stimulation lead wherein the lead body is preformed into a helical configuration to assist in anchoring the lead. The lead includes a non-conducting member extending forward of the lead electrode along the axis of the lead body, and tines extending perpendicularly from the member. The t ...


9
Eugene A Dickhudt, Roger A Paulson: Method of making biomedical lead with lobed lead anchor. Medtronic, Robert J Klepinski, John L Rooney, Joseph F Breimayer, December 13, 1983: US04419819 (78 worldwide citation)

A length of tubing having an inside diameter equal to the diameter of a biomedical lead is slit along a direction parallel to its axis, with the length of the slits being equal to the desired circumference for lead anchor lobes. The tubing is slipped over the lead body and compressed so that the sli ...


10
Andrew H Cragg, Robert L Assell, Steven D Ainsworth, Eugene A Dickhudt, Bradley J Wessman: Dual anchor prosthetic nucleus apparatus. Trans1, Kevin W Cyr, Cyr & Associates P A, February 17, 2009: US07491236 (75 worldwide citation)

A spinal mobility preservation apparatus and methods are disclosed. The spinal mobility preservation apparatus may include a proximal body, an intermediate body, a distal body, and an expandable membrane. The proximal body and the distal body secure the mobility preservation apparatus to adjacent ve ...



Click the thumbnails below to visualize the patent trend.