Duke University

Jon Van Winkle

Gary W Jones

Arnold Reisman

Eugene De Juan, Jr

Susan K Jones

A method of making a microsurgical cutter from a flat planar substrate having a top surface and a bottom surface comprises the steps of (a) forming a photoresist mask layer on the top surface in the pattern of the microsurgical instrument, the mask layer having an edge portion formed in a predetermined pattern therein; and then (b) etching isotropically the top surface of the substrate through the top surface to the bottom surface so that the top surface and bottom surface meet at a cutting edge portion, with the cutting edge portion having a configuration corresponding to the edge portion of the mask layer. The substrates may be formed from semiconductor materials such as silicon, silicon carbide, sapphire and diamond.

Growing community of inventors

Durham, NC, United States of America

Jon Van Winkle