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 defining an inflation lumen and a combination lumen, wherein the combination lumen 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 the inflation lumen; and
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, wherein 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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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.
14 Citations
20 Claims
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1. A weeping balloon catheter, comprising:
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a catheter having an elongate tubular body defining an inflation lumen and a combination lumen, wherein the combination lumen 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 the inflation lumen; and 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, wherein the drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of operating a weeping balloon catheter, the weeping balloon catheter including a catheter having an elongate tubular body defining an inflation lumen and a combination lumen, wherein the combination lumen 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 the inflation lumen, and 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, wherein the drug delivery balloon is in fluid communication with the combination lumen through a sidewall opening of the elongate tubular body, the method comprising steps of:
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advancing the combination lumen over a wire guide toward a target site within a body lumen; advancing a therapeutic agent along a drug delivery path defined by a first clearance between the wire guide and a wall of the combination lumen and the drug delivery balloon; and releasing the therapeutic agent from the drug delivery balloon at the target site. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification