Method for making microstructural surgical instruments

Details Method for making microstructural surgical instruments Method for making microstructural surgical instruments

1992-01-16

1994-06-07

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Cutlery

76112, B21K 1100

Patent

active

053179382

ABSTRACT:
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.

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