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US 8,616,152 B2Granted
Stent coating apparatus
AssigneeAbbott Cardiovascular Systems Inc.
InventorYung Ming Chen
Life of this patent
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Abstract
An apparatus for coating a stent comprises a coating solution reservoir, a stent support for carrying a stent adjacent the reservoir, transducers for generating waves through the coating solution, and a controller that controls timing at which the transducers are powered in order to eject a droplet of the coating solution.
Claims11
An apparatus for coating a stent, the apparatus comprising:
- a reservoir configured to carry a coating solution;
- a stent support configured to carry a stent adjacent the reservoir;
- a plurality of transducers coupled to the reservoir, each transducer configured to generate an acoustic wave through the coating solution to be carried in the reservoir;
- and
- a controller configured to power a first subset of transducers from among the plurality of transducers so that the transducers of the first subset collectively eject a first droplet of the coating solution from a first ejection point on a surface of the coating solution, wherein the controller is configured to power the first subset of transducers so that acoustic waves from the first subset of transducers are in-phase with each other at the first ejection point and configured to power a second subset of transducers from among the plurality of transducers so that the transducers of the second subset collectively eject a second droplet from a second ejection point on the surface of the coating solution, the second ejection point being different in location from the first ejection point.
2 more elements
Dependencies are inferred from the claim text.