| 摘要 |
<p>An apparatus and method for coating the abluminal surface of a stent (16) is described. The apparatus includes a stent support (12), a coating device (14), and an imaging system (56, 58). The coating device (14) includes a solution reservoir (40) and transducer assembly. The transducer assembly includes a plurality of transducers (48) and a controller (50). Each transducer (48) is used to generate focused acoustic waves in the coating substance (44) in the reservoir (40). A controller (50) is communicated to an image system (56, 58) to enable the transducers (48) to generate droplets on demand and at the predetermined ejection points on the surface (46) of the coating substance (44) to coat the stent (16). A method for coating a stent includes stent mounting, stent movement, and droplet excitation.</p> |
