Abstract: A spinal fixation system comprised of a bone mounting device, a support rod, and an attachment assembly interconnecting the bone mounting device to the support rod. The bone mounting device can include either bone screws configured to be screwed into the pedicle region of a vertebral body in the patient or hook mounting devices configured to be hooked around a portion of a vertebral body. The bone mounting devices include a multi-faceted connecting surface which is generally a crosshatched surface. The attachment assembly includes a housing having two openings for the support rod and a cam core member which has an eyebolt opening which is positioned in the housing so the support rod extends through the housing openings and the eyebolt opening. The cam core member also has a shaft on which the bone mounting device is positioned as well as a locking cap.

Abstract: The present invention includes a bone fixation apparatus comprising a bone fixation element, a linking member, and a coupling member. The coupling member has a first channel for receiving a portion of the bone fixation element and a second channel for receiving a portion of the linking member. The first and second channels are configured within the coupling member so as to allow communication of a securing force from the bone fixation element to the linking member such that the bone fixation element is rigidly secured with respect to the linking member. The bone fixation element may incorporate a conical load bearing surface which contacts the linking member through a third channel in the coupling member. Upward axial movement provided by nut tightening forces the load bearing surface of the bone fixation element against the linking member, thereby securing both within the coupling member.

Abstract: An apparatus and method for using a titanium alloy skeletal fixation system. A vertically adjustable spine screw includes an elongated u-shaped yoke on one end, with a machined female slot on each yoke side. The female slots allow ease of gripping the spine screw with a modified forceps like device. Parallel malleable metallic rods are conformed to the spinal region, then connected to the screw using an eyebolt assembly. This eyebolt assembly includes an angular rotation spacer, and a height adjustment spacer with positioning tabs. This assembly slides over each parallel rod with the bolt portion slipping into the spine screw yoke. The yoke meshes with the height adjustment spacer allowing height adjustment. The angular rotation spacer conforms to the rod and the height adjustment spacer. One or more of three different bridge assemblies transversely span the essentially parallel rods allowing lateral and angular adjustment.

Abstract: A modular implant for use in stabilizing femoral bone disorders resulting from injury, disease or congenital defects. In one embodiment the implant has an upper side plate with a widened head and a angled barrel, and a lower side plate adapted to be engaged with the upper side plate in a tongue and groove configuration. The side plates, once engaged, conform with the cortical wall of the femur.

Abstract: A prosthetic vertebra has a first hollow parallelepiped-shaped component and a second component shaped identically to the first component and marginally smaller than the first component. The second component can accordingly be positioned partially within the first component and can be axially moved within the first component, so that the overall length of the prosthetic vertebra can be established by appropriately moving the second component within the first. A set screw is threadably engageable with the first component and can be tightened against the second component to hold the components axially stationary relative to each other, once the prosthetic vertebra has been positioned in the patient and its length adjusted as appropriate to fit the patient.

Abstract: A bone stabilizing system including an improved guide pin consisting of an elongate solid shaft having one or more drilling teeth and self-tapping threads at a first end and a cross-section partially defined by a non-circular circumference. The system also includes a fixation device which comprises a metal cannula defined by a hollow cylindrical shaft having a drilling teeth at one end, an operating tool receiving means at the other end and a plurality of threads therebetween. The drilling teeth each having cutting surfaces positioned obliquely with first and second directions in a diametric plane extending axially through the cannula. The receiving portion is configured to accept an operating tool to rotatingly advance or withdraw the cannula within the fractured bone. The threads are configured with a non-circular circumference while a portion of the threads are tapered.