Dow Corning Wright Corp.

Carl M Stamp

Leo A Whiteside

Robert D Paxson

The present invention provides a modular hip prosthesis, and instrumentation for implanting the same, which has provision for varying the angulation between the stem portion and the trochanteral module portion by provision of connection means between the neck and stem which can be positioned or attached together in a variety of rotational positions. Variation of the angulation or anteversion is made possible in accordance with the present invention by virtue of the fact that the axis of the connection portion of the stem and neck is angularly offset from the axis of the body of the stem and neck, respectively. A further aspect of this invention is the provision of instrumention for formation of a cavity for implantation of a prosthesis of this invention which is provided with indication means for indicating to the surgeon the optimum angle for assembly of the prosthesis of invention for implantation into a particular proximal femur.

Instrument for implanting modular hip joint prosthesis with adjustable

The present invention provides a modular hip prosthesis, and instrumentation for implanting the same, which has provision for varying the angulation between the stem portion and the trochanteral module portion by provision of connection means between the neck and stem which can be positioned or attached together in a variety of rotational positions. Variation of the angulation or anteversion is made possible in accordance with the present invention by virtue of the fact that the axis of the connection portion of the stem and neck is angularly offset from the axis of the body of the stem and neck, respectively. A further aspect of this invention is the provision of instrumentation for formation of a cavity for implantation of a prosthesis of this invention which is provided with indication means for indicating to the surgeon the optimum angle for assembly of the prosthesis of invention for implantation into a particular proximal femur.

Modular hip joint prosthesis with adjustable anteversion

The present invention provides a shaping guide to permit accurate shaping of the tibial plateau while saving the anterior cruciate ligament. An alignment rod is located anterior to the anterior cruciate ligament and along the anterior cortex of the intermedullary canal of the tibia provides points of reference for all shaping operations. The shaping guide of the present invention is adjustable with respect to the handle portion of the rod so that the amount of resection of the tibial plateau can be controlled readily by the surgeon by raising or lowering of the cutting guide surfaces for resection of the tibia.

Tibial surface shaping guide for knee implants

The present invention relates to a distal femoral surface shaping guide for mounting on an intramedullary alignment which references the central long axis of the femur in shaping the distal femoral surface and a method for shaping the distal femur using that shaping guide with particular applicability for shaping one condyle for attachment of a unicondylar prosthesis. The alignment guide of the present invention is adjustable relative to the surface of the condyle to insure that the distal femoral condyle is resected relative to that surface. The alignment guide of the present invention utilizes visual sighting studs and provides a main body which remains attached to the intramedullary alignment guide throughout the entire shaping of the distal femur.

Growing community of inventors

Cordova, TN, United States of America

Carl M Stamp