Patent ID: 8616152
Filing Date: 2013-12-31
Classification: B05B,B05D

Abstract:
1. 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.