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US 8,998,679 B2Granted
Surface treatment of a polymeric stent
AssigneeAbbott Cardiovascular Systems Inc.
InventorsBin Huang, David C. Gale, Daniel Castro, Timothy A. Limon
Life of this patent
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Abstract
Methods of treating the polymeric surfaces of a stent with a fluid including a solvent for the surface polymer are disclosed.
Claims16
A method for forming a stent, comprising:
- providing a tube formed from a polymer material;
- laser cutting the polymer tube to form a laser cut polymer tube including first and second struts, wherein the laser cutting forms an undesired portion on the first and second struts, wherein the undesired portion is one or more of a lower molecular weight material disposed over the first and second struts, cracks, sharp edges and imperfections on or adjacent to the first and second struts;
- and
- applying a gas stream to the laser cut tube to remove substantially the entire undesired portion from the laser cut tube.
1 more element
A method for forming a stent, comprising:
- providing a tube formed from a polymer material;
- laser cutting the polymer tube to form a laser cut polymer tube including first and second struts, wherein the laser cutting forms an undesired portion on the first and second struts, wherein the undesired portion is one or more of a lower molecular weight material disposed over the first and second struts, cracks, sharp edges and imperfections on or adjacent to the first and second struts;
- placing the laser cut tube in a second tube, and
- removing the undesired portion by causing a solvent and/or abrasive to flow through the second tube while the laser cut tube is in the second tube.
1 more element
Dependencies are inferred from the claim text.