WEEPING BALLOON CATHETER WITH DRUG DELIVERY BALLOON IN FLUID COMMUNICATION WITH COMBINATION LUMEN
First Claim
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1. A weeping balloon catheter comprising:
- a catheter having an elongate tubular body that defines exactly two lumens, and a first lumen of the exactly two lumens terminates at an open distal end of the elongate tubular body;
a dilation balloon mounted on the elongate tubular body and in fluid communication with one of the exactly two lumens;
a drug delivery balloon disposed at least partially over the dilation balloon and including at least one drug release opening through an outer wall of the drug delivery balloon, and the drug delivery balloon being in fluid communication with an other one of the exactly two lumens.
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Abstract
A weeping balloon catheter includes a catheter having an elongate tubular body defining an inflation lumen and a combination lumen that terminates at an open distal end of the elongate tubular body. A dilation balloon is disposed at a distal end of the elongate tubular body and is in fluid communication with the inflation lumen. A drug delivery balloon is disposed at least partially over the dilation balloon and includes at least one drug release opening through an outer wall of the drug delivery balloon. The drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body.
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Citations
20 Claims
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1. A weeping balloon catheter comprising:
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a catheter having an elongate tubular body that defines exactly two lumens, and a first lumen of the exactly two lumens terminates at an open distal end of the elongate tubular body; a dilation balloon mounted on the elongate tubular body and in fluid communication with one of the exactly two lumens; a drug delivery balloon disposed at least partially over the dilation balloon and including at least one drug release opening through an outer wall of the drug delivery balloon, and the drug delivery balloon being in fluid communication with an other one of the exactly two lumens. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A weeping balloon catheter comprising:
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a catheter having an elongate tubular body that defines an inflation lumen and a combination lumen; a dilation balloon mounted on the elongate tubular body in fluid communication with the inflation lumen; a drug delivery balloon disposed at least partially over the dilation balloon and including at least one drug release opening through an outer wall of the drug delivery balloon, and the drug delivery balloon being in fluid communication with the combination lumen; and a wire guide received in the combination lumen; wherein the wire guide at least partially defines an infusion path to the drug delivery balloon, and the wire guide at least partially defines a reduced clearance distally from the infusion path to reduce leakage of a liquid from the infusion path out of an open distal end of the combination lumen. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of delivering a liquid to a target site, comprising the steps of:
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sliding a weeping balloon catheter over a wire guide to the target site; inflating a dilation balloon of the weeping balloon catheter; and moving a liquid along a surface of the wire guide, into a drug delivery balloon of the weeping balloon catheter, and to the target site through a drug release opening through an outer wall of the drug delivery balloon. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification