Method for making microstructural surgical instruments

A method of making a microsurgical scraper from a flat planar substrate having a top surface and a bottom surface, comprising the steps of:

• (a) masking said top surface to produce a pattern of dots on said top surface;
• and then
• (b) etching the top surface of said substrate through said pattern of dots to produce a serrated scraper surface with pointed projections.

A method of making a microsurgical cutter from a flat planar substrate having a first side and a second side comprising the steps of:

• (a) masking said first side to define a first portion of said first side;
• (b) masking said second side to define a second portion of said second side;
• (c) etching said substrate through said first and second defined portions to form a cutting edge which extends through said substrate from said first side to said second side.

A method of making a microsurgical cutter from a flat planar substrate having a top surface and a bottom surface, comprising the steps of:

• (a) forming mask layer means on said top surface for masking said top surface in the pattern of the microsurgical instrument, said mask layer means having an edge portion formed in a predetermined pattern therein;
• and then
• (b) etching isotropically the top surface of said substrate through said top surface to said bottom surface so that said top surface and bottom surface meet at a cutting edge portion, said cutting edge portion having a configuration corresponding to said edge portion of said mask layer means.