Weeping balloon catheter with drug delivery through dilation balloon
First Claim
1. A weeping balloon catheter, comprising:
- a catheter having an elongate tubular body defining a medical device lumen and a liquid delivery lumen;
a dilation balloon disposed at a distal end of the elongate tubular body and in fluid communication with the liquid delivery lumen, wherein the dilation balloon includes a fluid communication channel through an outer wall of the dilation balloon; and
a flow restriction member positioned along the fluid communication channel and having an open position permitting fluid communication along the fluid communication channel and a closed position blocking fluid communication along the fluid communication channel;
wherein a drug delivery path of the weeping balloon catheter is defined by the liquid delivery lumen and the dilation balloon.
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Accused Products
Abstract
A weeping balloon catheter includes a catheter having an elongate tubular body defining a medical device lumen and a liquid delivery lumen. A dilation balloon is disposed at a distal end of the elongate tubular body and is in fluid communication with the liquid delivery lumen. The dilation balloon includes a fluid communication channel through an outer wall of the dilation balloon. A flow restriction member is positioned along the fluid communication channel and has an open position permitting fluid communication along the fluid communication channel and a closed position blocking fluid communication along the fluid communication channel. A drug delivery path of the weeping balloon catheter is defined by the liquid delivery lumen and the dilation balloon.
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Citations
19 Claims
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1. A weeping balloon catheter, comprising:
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a catheter having an elongate tubular body defining a medical device lumen and a liquid delivery lumen; a dilation balloon disposed at a distal end of the elongate tubular body and in fluid communication with the liquid delivery lumen, wherein the dilation balloon includes a fluid communication channel through an outer wall of the dilation balloon; and a flow restriction member positioned along the fluid communication channel and having an open position permitting fluid communication along the fluid communication channel and a closed position blocking fluid communication along the fluid communication channel; wherein a drug delivery path of the weeping balloon catheter is defined by the liquid delivery lumen and the dilation balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of operating a weeping balloon catheter, the weeping balloon catheter including a catheter having an elongate tubular body defining a medical device lumen and a liquid delivery lumen, a dilation balloon disposed at a distal end of the elongate tubular body and in fluid communication with the liquid delivery lumen, wherein the dilation balloon includes a fluid communication channel through an outer wall of the dilation balloon, and a flow restriction member positioned along the fluid communication channel and having an open position permitting fluid communication along the fluid communication channel and a closed position blocking fluid communication along the fluid communication channel, and wherein a drug delivery path of the weeping balloon catheter is defined the liquid delivery lumen and the dilation balloon, the method comprising steps of:
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advancing the distal end of the weeping balloon catheter toward a target site within a body lumen; advancing a therapeutic agent through the liquid delivery lumen and into the dilation balloon; and inflating the dilation balloon using the therapeutic agent while the flow restriction member is in the closed position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification