1
Qi Bin Bao, Paul A Higham: Hydrogel intervertebral disc nucleus with diminished lateral bulging. Howmedica, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, July 9, 1996: US05534028 (486 worldwide citation)

A prosthetic nucleus for a vertebral disc is made of a hydrogel material. The hydrogel prosthetic nucleus has a shape generally conforming to the natural nucleus pulposus, and it exhibits diminished lateral bulging under high compressive loads. The hydrogel has a water content of from 30% to 90% and ...


2
Michael W Chapman, Charles C Edwards, Dana C Mears: Modular femoral fixation system. Pfizer Hospital Products Group, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, March 2, 1993: US05190544 (342 worldwide citation)

A modular femoral internal implant system for use in the treatment of femoral disorders resulting from injury, disease or congenital defect includes at least three interconnectable components: 1) an elongated epiphyseal/metaphyseal implant, 2) an intramedullary rod and 3) an angled side plate having ...


3
Thomas A Silvestrini, Joseph E Laptewicz Jr: Triaxially-braided fabric prosthesis. Pfizer Hospital Products Group, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, May 30, 1989: US04834755 (341 worldwide citation)

A novel prosthesis for use in repairing or replacing soft tissue is disclosed, which comprises a triaxially-braided fabric element having interwoven first, second and third sets of fibers, with the fibers of the second and third sets being oriented at substantially the same acute braiding angle with ...


4
Qi Bin Bao, Paul A Higham, Charanpreet S Bagga, Hansen A Yuan: Method and apparatus for injecting an elastic spinal implant. Howmedica, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, September 1, 1998: US05800549 (315 worldwide citation)

A method and apparatus for injecting an elastic spinal implant into a cavity in a spinal disc so as to treat disc degeneration are given. The method and apparatus can be used in a variety of surgical approaches with respect to the patient. An elastic spinal nucleus prosthesis is very quickly inserte ...


5
Peter Metz Stavenhagen, Bernd Robioneck: Device for setting a spine. Howmedica, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, December 19, 1995: US05476464 (256 worldwide citation)

The present invention relates to a device for setting a spine having damaged vertebrae, comprising an anchoring element including a shaft portion (16) to be attached to spaced vertebrae, the free end of said anchoring element including a slot (24) for receiving a distracting or, respectively, compre ...


6
Robert V Kenna: Anterior cruciate ligament prosthesis. Pfizer Hospital Products Group, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, May 9, 1989: US04828562 (252 worldwide citation)

An adjustable housing suitable to be used with another housing and with a synthetic ligament so as to provide (for example) an anterior cruciate ligament prosthesis system for a knee joint is provided. The adjustable housing features an interior having a step shoulder located therein. A set screw in ...


7
Thomas A Silvestrini: Fixation device for a ligament or tendon prosthesis. Pfizer Hospital Products Group, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, November 24, 1987: US04708132 (236 worldwide citation)

A device for affixing a pretensioned ligament or tendon prosthesis to a bone of a patient includes a hollow elongated sleeve adapted to fit within a through drill hole in the bone and a cooperating wedge. A portion of the bore of the hollow sleeve is tapered with decreasing bore cross-sectional thic ...


8
Martin H Krag, Malcolm H Pope: Spinal fixation device. Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, January 29, 1991: US04987892 (208 worldwide citation)

A device for spinal fixation comprises first and second pedicle screw members, a stabilizing member, and an articulating clamp which has securing means for releasably attaching the screw members to the stabilizing member. The device includes locking means such as a clamp bolt to lock the screw membe ...


9
Michael S Levy: Osteotomy cutting guide. Howmedica, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, July 30, 1996: US05540695 (202 worldwide citation)

An osteotomy cutting guide is disclosed. The cutting guide utilities an angle cutting block which is removably and adjustably attached to a stabilizing base. Also utilized is a distal hole drill block which is removably and adjustably attached to the stabilizing base. The stabilizing base has at lea ...


10
Michael W Chapman, Charles C Edwards, Dana C Mears: Modular femoral fixation system. Pfizer Hospital Products Group, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, November 15, 1994: US05364398 (181 worldwide citation)

A modular femoral internal implant system for use in the treatment of femoral disorders resulting from injury, disease or congenital defect includes at least three interconnectable components: 1) an elongated epiphyseal/metaphyseal implant, 2) an intramedullary rod and 3) an angled side plate having ...