Drug delivery and dilatation-drug delivery catheters in a rapid exchange configuration
First Claim
Patent Images
1. A drug delivery catheter comprising:
- a catheter shaft comprising a proximal end, a distal end, at least one drug delivery port proximate the distal end and at least one drug delivery lumen for providing a drug to the drug delivery port, the at least one drug delivery lumen in fluid communication with the proximal end,the catheter shaft further comprising a guide wire lumen extending from the distal end of the catheter shaft to a terminus within the catheter shaft, the terminus being proximal to the drug delivery port, and defining an opening proximate the terminus for the guide wire to exit the catheter shaft.
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0 Petitions
Accused Products
Abstract
Catheters for drug delivery or for both dilatation and drug delivery are provided with a guide wire lumen terminating within the catheter shaft and having an opening through the catheter shaft to enable a guide wire to exit the catheter shaft substantially distal to the proximal end of the catheter. In one embodiment, drug delivery ports are provided between occlusion balloons. In another embodiment, a dilatation balloon is also provided between the occlusion balloons. In another embodiment, a double layered balloon is provided to simultaneously dilatate the stenosis and deliver medication to the site. Alternatively, a balloon can be provided which only delivers medication.
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Citations
35 Claims
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1. A drug delivery catheter comprising:
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a catheter shaft comprising a proximal end, a distal end, at least one drug delivery port proximate the distal end and at least one drug delivery lumen for providing a drug to the drug delivery port, the at least one drug delivery lumen in fluid communication with the proximal end, the catheter shaft further comprising a guide wire lumen extending from the distal end of the catheter shaft to a terminus within the catheter shaft, the terminus being proximal to the drug delivery port, and defining an opening proximate the terminus for the guide wire to exit the catheter shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A catheter comprising:
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a catheter shaft having a distal portion, a distal end, and a proximal end; means for conveying a drug to an exterior of the catheter; means for delivering the drug from the proximal end to the means for conveying; and means for receiving a guide wire within the distal portion of the catheter shaft, the means for receiving including a means for the guide wire to exit the distal portion of the catheter shaft to the exterior of the catheter shaft. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A dilatation-drug delivery catheter comprising:
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a catheter shaft comprising a distal portion, a distal end and a proximal end; a dilatation balloon attached to the distal portion of the catheter shaft; a first occlusion balloon attached to the catheter shaft at a location distal to the dilatation balloon and a second occlusion balloon attached to the catheter shaft at a location proximal to the dilatation balloon; the catheter shaft further comprising at least one drug delivery port in the distal portion of the catheter shaft, between the dilatation balloon and at least one of the occlusion balloons, at least one dilatation lumen in fluid communication with the dilatation balloon, at least one inflation lumen in fluid communication with the occlusion balloons, at least one drug delivery lumen fluidly communicating between the drug delivery port and the proximal end, and a guide wire lumen in the distal portion of the catheter shaft, the guide wire lumen having a first opening to an exterior of the catheter shaft at the distal end of the catheter shaft and a second opening to the exterior of the catheter shaft in the distal portion of the catheter shaft, proximal to the second occlusion balloon and substantially distal to the proximal end of the catheter shaft, such that a guide wire can enter the catheter shaft through the first opening and exit the catheter shaft through the second opening. - View Dependent Claims (27, 28)
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29. A dilatation-drug delivery catheter comprising:
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a catheter shaft comprising a distal portion, a distal end and a proximal end; a dilatation balloon attached to the distal portion of the catheter shaft, the dilatation balloon having an outer and an inner layer wherein the inner layer defines an inner region proximate the catheter shaft and the outer and inner layers define an outer region, and the outer layer comprises a plurality of openings; the catheter shaft further comprising a first lumen fluidly communicating between the outer region and the proximal end, and a second lumen in fluid communication with the inner region, and a third lumen in the distal portion of the catheter shaft for receiving a guide wire, the third lumen having a first opening to an exterior of the catheter shaft at the distal end of the catheter shaft and a second opening to the exterior of the catheter shaft in the distal portion of the catheter shaft, proximal to the dilatation balloon and substantially distal to the proximal end of the catheter shaft, such that the guide wire can enter the catheter shaft through the first opening and can exit the catheter shaft through the second opening. - View Dependent Claims (30)
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31. A drug delivery catheter comprising:
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a catheter shaft having a distal portion, a distal end and a proximal end; a drug delivery balloon attached to the distal portion of the catheter shaft, the drug delivery balloon including a plurality of ports extending through the balloon; the catheter shaft further comprising at least one delivery lumen fluidly communicating between the drug delivery balloon and the proximal end, and a lumen in the distal portion of the catheter shaft for receiving a guide wire, the lumen having a first opening to the exterior of the catheter shaft at the distal end of the catheter shaft and a second opening to the exterior of the catheter shaft in the distal portion of the catheter shaft, proximal to the drug delivery balloon and substantially distal to the proximal end of the catheter shaft, such that the guide wire can enter the catheter shaft through the first opening and exit the catheter shaft through the second opening. - View Dependent Claims (32, 33, 34, 35)
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Specification