Patent ID: 7153411
Filing Date: 2006-12-26
Classification: A61L,C25F

Abstract:
1. A method of cleaning or electropolishing a stent formed from an alloy comprising at least one noble metal and at least one non-noble metal, the method comprising the steps of: a) providing a tabular member formed from on alloy comprising at least one noble metal and at least one non-noble metal, said non-noble metal selected from the group consisting of stainless steel, cobalt-chromium alloys, and nickel-titanium alloys; b) laser cutting a stent pattern in said tubular member to form a stent; c) electropolishing said stein in an aqueous acidic mixture comprising at least one chelating or complexing agent, said chelating agent comprising at least one sulfur atom and at least one halide in the form of a salt or an acid; and d) subjecting said acidic mixture to a multiple pulse waveform.