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1. (WO2007021427) ULTRASOUND APPARATUS AND METHODS FOR MIXING LIQUIDS AND COATING STENTS

Pub. No.:    WO/2007/021427    International Application No.:    PCT/US2006/027895
Publication Date: Fri Feb 23 00:59:59 CET 2007 International Filing Date: Wed Jul 19 01:59:59 CEST 2006
IPC: B05B 5/025
Applicants: BABAEV, Eilaz, P.
Inventors: BABAEV, Eilaz, P.
Title: ULTRASOUND APPARATUS AND METHODS FOR MIXING LIQUIDS AND COATING STENTS
Abstract:
Ultrasound methods and apparatus for mixing two or more different liquids are disclosed. The ultrasound methods and apparatus may mix varied components including drugs, polymers, and coatings for application to a variety of medical apparatus surfaces. The apparatus and technique can generate a proper mixture which is uninterruptedly/continuously delivered to the surface of the medical apparatus. The apparatus may include specific ultrasound transducer/tip configurations which may allow for the mixing of different liquids in a mixing camera located inside of the vibrating tip. The apparatus and methods of the present invention may mix different drugs, applying them to stent surface using different effects like ultrasound cavitation and radiation forces. Furthermore, the disclosed methods and apparatus may generate a mixture and may deliver a targeted, gentle, highly controllable dispensation of continuous liquid spray which can reduce the loss of expensive pharmaceuticals.