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Part: Stainless Steel Eye Surgery Needle, Outer Diameter 90 microns, Inner Diameter 37 microns, length 2 mm Task: To reduce Outer Diameter to 70 microns and to clean the needle edge from burrs. The aim occurred unreachable by any other methods tried .Problems: 1.To measure and to regulate the working current within the range of 2-3 microamperes2. To handle a part of micro dimensionsSolutions: 1.The current measure was carried out virtually, by calculation based on current field distribution inside the electrolyte.2. Under microscope manipulated electro-polishing bath was installed for the purposeResults: The task was reached and tens needle were successfully treated and used in lab and clinical experiments

Before electropolish: Outer Diameter 90 microns, burrs on the edge

After electropolish: Outer Diameter 70 microns, no burrs

Ensuring smooth and free of burrs inner surface of configurated juncted optic channels of 2-3 mm diameters, drilled inside a massive stainless steel part. Short-Term R&D Project. Page 1 of 1 TEMPLATE TO BE REPLACED