Drug delivery via mechanical vibration balloon
First Claim
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1. A drug delivery balloon catheter comprising:
- an ultrasound transmission member having a proximal end and a distal end;
a generator configured to provide longitudinal vibrations to the ultrasound transmission member through the proximal end of the ultrasound transmission member coupled to the generator;
a balloon coupled to the distal end of the ultrasound transmission member and being movable between an inflated state and a deflated state; and
at least one wire coupled to the ultrasound transmission member and the balloon so as to transmit the longitudinal vibrations parallel to the balloon catheter from the ultrasound transmission member to the balloon such that the balloon is longitudinally vibrated at least when the balloon is in the inflated state.
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Abstract
A drug coated inflatable balloon catheter (200) configured to vibrate is disclosed. The vibration can dislodge the drug from the balloon. The vibration can also improve delivery of the drug to deeper layers of a vessel wall. The balloon catheter can include one or more support wires. The support wires can be coupled to an ultrasound transmission member (120). The ultrasound transmission member can transmit ultrasonic vibrations to the support wires and/or the balloon wall.
30 Citations
15 Claims
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1. A drug delivery balloon catheter comprising:
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an ultrasound transmission member having a proximal end and a distal end; a generator configured to provide longitudinal vibrations to the ultrasound transmission member through the proximal end of the ultrasound transmission member coupled to the generator; a balloon coupled to the distal end of the ultrasound transmission member and being movable between an inflated state and a deflated state; and at least one wire coupled to the ultrasound transmission member and the balloon so as to transmit the longitudinal vibrations parallel to the balloon catheter from the ultrasound transmission member to the balloon such that the balloon is longitudinally vibrated at least when the balloon is in the inflated state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A drug-delivery device for vessels comprising:
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a catheter body having at least one lumen extending longitudinally therethrough; an elongate ultrasound transmission member extending longitudinally through the lumen; and a drug-coated balloon having at least one support wire coupled to the ultrasound transmission member so as to transmit longitudinal vibrations parallel to the catheter body to the drug-coated balloon such that the drug-coated balloon is longitudinally vibrated. - View Dependent Claims (15)
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Specification