BALLOON CATHETER WITH DELIVERY PORTS
First Claim
1. An apparatus suitable for treating a vascular condition, the apparatus comprising:
- a catheter having proximal and distal regions;
a balloon disposed on the distal region of the catheter, the balloon having uninflated and inflated states, and wherein the balloon further comprises a treatment section adapted to contact the vascular condition in the inflated state; and
a plurality of delivery ports disposed along a lateral surface of the catheter at a location proximal to the balloon,wherein the balloon is further adapted to be at least partially inflated at a location distal to the vascular condition during injection of a therapeutic agent through the plurality of delivery ports to enhance localized delivery of the therapeutic agent to the vascular condition.
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Accused Products
Abstract
The present invention provides apparatus and methods for treating a vascular condition by providing a catheter having proximal and distal regions, a balloon disposed on the distal region, and a plurality of delivery ports disposed in lateral surfaces of the catheter at locations proximal to the balloon. The balloon is adapted to treat the vascular condition, for example, by performing balloon angioplasty. Subsequently, the balloon may be deflated, the catheter advanced distally, and the plurality of delivery ports may be aligned with the vascular condition, e.g., to deliver a therapeutic agent such as an anti-restenosis drug. During the delivery of the therapeutic agent, the balloon may be partially or fully re-inflated to enhance localized delivery of the therapeutic agent.
20 Citations
20 Claims
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1. An apparatus suitable for treating a vascular condition, the apparatus comprising:
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a catheter having proximal and distal regions; a balloon disposed on the distal region of the catheter, the balloon having uninflated and inflated states, and wherein the balloon further comprises a treatment section adapted to contact the vascular condition in the inflated state; and a plurality of delivery ports disposed along a lateral surface of the catheter at a location proximal to the balloon, wherein the balloon is further adapted to be at least partially inflated at a location distal to the vascular condition during injection of a therapeutic agent through the plurality of delivery ports to enhance localized delivery of the therapeutic agent to the vascular condition. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method suitable for treating a vascular condition, the method comprising:
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providing a catheter having proximal and distal regions, a balloon disposed on the distal region, and a plurality of delivery ports disposed along a lateral surface of the catheter at a location proximal to the balloon; inserting the catheter into a vessel with the balloon in an uninflated state; aligning the balloon with the vascular condition and inflating the balloon to treat the vascular condition; deflating the balloon; advancing the catheter in a distal direction to substantially align the plurality of delivery ports with the vascular condition; at least partially inflating the balloon at a location distal to the vascular condition; and injecting a therapeutic agent to the vascular condition via the plurality of delivery ports. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus suitable for treating a vascular condition, the apparatus comprising:
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a catheter having proximal and distal regions; a balloon disposed on the distal region of the catheter, the balloon having uninflated and inflated states, and wherein the balloon further comprises a treatment section adapted to contact a vessel wall in the inflated state; and a plurality of delivery ports disposed along a lateral surface of the catheter at a location proximal to the balloon, wherein the plurality of delivery ports span a longitudinal length along the catheter, wherein the longitudinal length spanned by the plurality of delivery ports is substantially identical to a longitudinal length spanned by the treatment section of the balloon. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification