Method of making microstructural surgical instruments
US5619889A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1994 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Oct 11, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B3/58
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.