SCORING CATHETER WITH DRUG DELIVERY MEMBRANE
First Claim
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1. A system for treating a vascular wall, said system comprising:
- a catheter including a catheter body having a proximal end and a distal end;
an expandable scoring structure disposed at a distal end of the catheter;
a membrane adapted to be positioned over at least a part of the expandable scoring structure; and
a substance sequestered on or in the membrane, wherein at least a portion of the substance is released from the membrane when the scoring structure is expanded within a body lumen.
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Accused Products
Abstract
Angioplasty and other dilatation devices are provided with scoring elements. The device additionally incorporates a separate drug application membrane which is used to deliver drugs and other active substances to a body lumen, typically a blood vessel. The device functions to release drug into a region of the luminal wall as the scoring structure is radially expanded into the lumen wall.
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Citations
24 Claims
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1. A system for treating a vascular wall, said system comprising:
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a catheter including a catheter body having a proximal end and a distal end; an expandable scoring structure disposed at a distal end of the catheter; a membrane adapted to be positioned over at least a part of the expandable scoring structure; and a substance sequestered on or in the membrane, wherein at least a portion of the substance is released from the membrane when the scoring structure is expanded within a body lumen. - 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 method for treating a luminal wall, said method comprising:
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positioning an expandable scoring structure at a treatment site in a body lumen of a patient; expanding the scoring structure so that said scoring structure scores a region of or on the luminal wall; and releasing a substance into the scored material from a membrane disposed as least partially over the expandable scoring structure. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification