A fusion implant apparatus, in for the replacement of a vertebra or an intervertebral disc, having at least one biocompatible structure. The structure is made of a composite material having reinforcing fibers, and has a first and second face to engage adjacent bone structures to be fused, struts extending between the first and second faces, and a hollow interior space for reception of bone growth inducing substances. The fibers are long fibers and the majority of these long fibers have a directi...

A method of producing fusion reactions comprises the steps of bringing deuterium ions from an ion source to run in a substantially closed path for accumulation of the ions to a predetermined density, whereupon the ions are deflected towards a reaction center inside this closed path. An apparatus for a fusion reactor includes two annular, coaxially disposed magnets (12,20) which are disposed to produce magnetic fields in a vacuum tank. The inner magnet (20) produces a homogenous field transversel...

A nonprecious alloy for dental restorations fused to porcelain includes the following ranges of constituents in percentages by weight:

This invention relates to a fusion and casting machine for the preparation of glass buttons for analysis. The machine contains an assembly of several heaters which moves with a precession motion imparting agitation to the content of the molten materials. When the materials are fused, agitation stops, flame goes out, moulds which were intially above the crucibles move under the crucibles, and the crucibles turn over and transfer their content into the moulds where solidification takes place. Perf...

A laser-driven fusion reactor consisting of concentric spherical vessels in which the thermonuclear energy is derived from a deuterium-tritium (D+T) burn within a "pellet," located at the center of the vessels and initiated by a laser pulse. The resulting .alpha.-particle energy and a small fraction of the neutron energy are deposited within the pellet; this pellet energy is eventually transformed into sensible heat of lithium in a condenser outside the vessels. The remaining neutron energy is d...

A prosthesis for use in fusion of a bone joint especially for managing the severely disabled rheumatoid wrist. The prosthesis serves as a bridge across the joint and is formed of an appropriate metal of hollow construction and is bifurcated at one end to provide projections which are received within the medullary canal of two metacarpals and has an extension on the other end for reception within the radius. Methylmethacrylate or other appropriate settable cement is packed within and about the pr...

Means for joining braided copper leads or terminals to aluminum bus bars or tap straps. The means provides for clamping the braided copper member to the aluminum, preferably by means of a copper heat sink. Then the edges or overlapped areas of the copper and aluminum are fusion welded by a gas metal arc welding process with automatic aluminum wire feed. In a modified version a copper alloy wire is hand fed to the joint together with the aluminum filler wire from the welding gun.

Three units of surgical apparatus for interbody fusion of the spine and method of use. The first unit consists of an intervertebral mortising chisel with the inner drill bit used to remove a block of tissue of specified dimension. The second unit consists of the bone plug cutter with the inner bone plug ejector used to obtain bone plug of the same chosen dimension of the intervertebral mortising chisel unit. The third unit consists of the bone plug injector and the inner bone plug injector rod u...

A hydrazine compound in a carrier gas wherein the hydrazine compound is transformed into its gaseous state and the gaseous hydrazine is used by processing apparatus to bond metallic materials with a soldering material, to remove film compound formation from metallic surfaces, and to minimize porous formation in soldering materials which may be attached to metallic surfaces. The hydrazine compound is transported by the gaseous carrier and heated to a temperature that vaporizes the hydrazine and i...

Method and apparatus for plasma confinement and/or heating in a toroid-like magnetic system, wherein a dense electron-rich sheath is maintained between the surface of a toroid-like body of quasi-neutral plasma and an adjacent conducting wall or grid in order to create a deep electrostatic potential well for the ions of said quasi-neutral plasma and thus to enhance the confinement of ions in said system and/or to accelerate injected ions for the heating of said plasma.