Method of making microstructural surgical instruments
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United States of America Patent
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Apr 15, 1997
Grant Date -
N/A
app pub date -
Oct 11, 1994
filing date -
Oct 11, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of making a microstructural shaped article from a high hardness substrate workpiece, in which an energy-transmissive shaping member is secured in energy-transmissive relationship to an energy source, and the substrate workpiece is positioned in alignment therewith. A fine grain slurry of solid particles is provided between the energy-transmissive shaping member and the substrate, and the substrate workpiece is milled by the energy-transmissive shaping member in compressive bearing relationship to the substrate through the fine grain slurry of solid particles, for sufficient time to form the desired shape in the substrate workpiece. A reusable, tribologically enhanced die is also described, for use in the method of the invention. The energy source may be an electroacoustic energy source or an electric power energy source. The non-etched microstructural articles of the invention include knives, saws, and other instruments useful for ocular and other surgical applications.
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