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US 2009/0214756 A1Published application
Methods For Electrostatic Coating Of An Abluminal Stent Surface
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsYung-Ming Chen, Fuh-Wei Tang
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Abstract
A stent mandrel fixture for supporting a stent during the electrostatic application of a coating substance is provided.
Claims11
A method for spraying an outer surface of a stent with a coating substance, comprising the steps of:
- providing a stent in conductive contact with a first mandrel component supporting the stent and applying a charge to the stent and/or grounding the stent;
- disposing a second mandrel component at least partially within a bore of the stent, the second mandrel component being spaced from the walls of the bore, the second mandrel component including an outermost surface exposed to at least a portion of the walls of the bore and being made from a nonconductive material or being coated with a nonconductive material;
- charging a coating substance, and
- spraying the stent with the charged coating substance.
1 more element
A method for applying a composition to a stent, comprising the steps of:
- applying a charge to the stent and/or grounding the stent;
- ionizing a composition;
- disposing mandrel component within a bore of the stent, the mandrel component having an outermost surface spaced from and exposed to a luminal surface of the stent and an electric field extending from the outermost surface and having the same polarity as the ionized composition;
- and
- spraying the stent with the ionized composition including limiting or preventing composition from coating the luminal surface of the stent by the electric field repelling ionized composition.
2 more elements
Dependencies are inferred from the claim text.