Ultrasound apparatus and methods for mixing liquids and coating stents
First Claim
1. An apparatus for mixing at least two different liquids and coating at least portion of at least one stent comprising:
- a) an ultrasound transducer having a tip;
b) an ultrasound transducer tip having mixing chamber inside of the vibrating tip;
c) an ultrasound transducer tip'"'"'s mixing chamber having tubes to deliver liquid into chamber; and
d) an ultrasound transducer tip'"'"'s mixing chamber having central orifice to provide mixture of liquid to the distal end of tip to be sprayed;
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Accused Products
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.
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Citations
15 Claims
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1. An apparatus for mixing at least two different liquids and coating at least portion of at least one stent comprising:
- a) an ultrasound transducer having a tip;
b) an ultrasound transducer tip having mixing chamber inside of the vibrating tip;
c) an ultrasound transducer tip'"'"'s mixing chamber having tubes to deliver liquid into chamber; and
d) an ultrasound transducer tip'"'"'s mixing chamber having central orifice to provide mixture of liquid to the distal end of tip to be sprayed;
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a) an ultrasound transducer having a tip;
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10. A method for mixing at least two different liquids, comprising:
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a) having ultrasound transducer tip with mixing chamber, provided inside of vibrating tip b) delivering at least two different liquids into mixing camera c) delivering at list two different liquids and at least one gas stream via one of the liquid delivery tube c) creating mixture at least from two different liquids using ultrasound cavitation and radiation forces d) delivering the mixture to distal end of tip via central orifice to create the spray e) directing and applying a mixture coating spray onto the stent - View Dependent Claims (11, 12, 13, 14, 15)
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Specification