Apparatus for delivering an intravascular drug
First Claim
1. An apparatus for delivering an intravascular drug, said apparatus comprising:
- a) a first catheter tube having a proximal end, a distal end, and a fluid lumen extending from its proximal end to its distal end;
b) an inflatable balloon coupled to said distal end of said first catheter and in fluid communication with said fluid lumen;
c) a second catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end, said first catheter tube extending through said lumen of said second catheter tube;
d) a self-expanding balloon coupled to said distal end of said second catheter tube, said first catheter tube extending through said self-expanding balloon; and
e) a third catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end, said second catheter tube extending through said lumen of said third catheter tube, whereinat least one of said second catheter tube and said third catheter tube is adapted to receive and deliver the intravascular drug to the location of said self-expanding balloon.
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Accused Products
Abstract
A preferred apparatus for delivering an intravascular drug such as a sclerosing agent (or a microfoam sclerosing agent) to a varicose vein includes a catheter having three concentric tubes. The innermost tube has a guide wire lumen and an inflation lumen. The distal end of the innermost tube has an integral inflatable occlusion balloon in fluid communication with the inflation lumen. The intermediate tube has a lumen through which the innermost tube extends. The distal end of the intermediate tube has a self-expanding balloon with a plurality of fluid pores in fluid communication with the intermediate tube lumen. The outer tube has a lumen through which the intermediate tube extends. Sclerosing agent is dispensed through the intermediate tube to pores located at the distal end of the intermediate tube or in the self-expanding balloon. Veins are sclerosed as the self-expanding balloon is pulled through and ultimately out of the vein.
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Citations
31 Claims
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1. An apparatus for delivering an intravascular drug, said apparatus comprising:
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a) a first catheter tube having a proximal end, a distal end, and a fluid lumen extending from its proximal end to its distal end; b) an inflatable balloon coupled to said distal end of said first catheter and in fluid communication with said fluid lumen; c) a second catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end, said first catheter tube extending through said lumen of said second catheter tube; d) a self-expanding balloon coupled to said distal end of said second catheter tube, said first catheter tube extending through said self-expanding balloon; and e) a third catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end, said second catheter tube extending through said lumen of said third catheter tube, wherein at least one of said second catheter tube and said third catheter tube is adapted to receive and deliver the intravascular drug to the location of said self-expanding balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus for delivering an intravascular drug, said apparatus comprising:
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a) a catheter having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end; b) a drug reservoir having a drug outlet, said drug outlet being fluidly coupled to the proximal end of the lumen of the catheter, c) dispensing means coupled to said drug reservoir, said dispensing means being adapted to automatically dispense the drug from the reservoir into the lumen of the catheter as the catheter is moved through a blood vessel, wherein said dispensing means includes an actuator that is placed in tension in response to movement of said catheter through the blood vessel, the actuator controlling operation of said dispensing means in response to movement of said catheter through the blood vessel. - View Dependent Claims (17, 18, 19, 20)
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21. An apparatus for delivering an intravascular drug, said apparatus comprising:
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a) a first catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end; b) a self-expanding balloon coupled to said distal end of said first catheter tube; and c) a second catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end, said first catheter tube extending through said lumen of said second catheter tube, wherein at least one of said first catheter tube and said self-expanding balloon includes pores, and said first catheter tube is adapted to receive and deliver the intravascular drug to said pores. - View Dependent Claims (22, 23, 24, 25)
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26. An intravascular apparatus, comprising:
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a) a first catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end; b) a self-expanding balloon coupled to said distal end of said first catheter tube and having an abrasive outer surface; and c) a second catheter tube having a proximal end, a distal end, and a lumen extending from its proximal end to its distal end, said first catheter tube extending through said lumen of said second catheter tube. - View Dependent Claims (27, 28)
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29. A kit for the intravascular treatment of a blood vessel, said kit comprising:
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a) a catheter having an expandable balloon at its distal end and a drug delivery lumen; and b) a drug dispenser having a drug reservoir fluidly coupled to said drug delivery lumen, wherein said drug dispenser includes dispensing means for automatically dispensing a drug from said drug reservoir into said drug delivery lumen in response to movement of said catheter through the blood vessel, wherein said dispensing means includes an actuator that is placed in tension in response to movement of said catheter through the blood vessel, the actuator controlling operation of said dispensing means in response to movement of said catheter through the blood vessel. - View Dependent Claims (30, 31)
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Specification