Coating Method for a Folded Balloon
First Claim
1. Use of a composition comprising at least a contrast agent and at least an antiproliferative, antiinflammatory, antiphlogistic, cytostatic, cytotoxic, antiangiogenic, anti-restenotic or antithrombotic active agent and at least an alcohol as solvent for coating folded catheter balloons.
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Accused Products
Abstract
The present invention relates to compositions which are suitable for selective filling or selective coating of folds of a folded balloon, and especially relates to compositions of a contrast agent and an active agent in a solvent for filling of folds of a folded catheter balloon as well as to methods for selective filling or selective coating of folds of a folded catheter balloon and to filled or coated folded catheter balloons which can be obtained according to one of these methods.
107 Citations
24 Claims
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1. Use of a composition comprising at least a contrast agent and at least an antiproliferative, antiinflammatory, antiphlogistic, cytostatic, cytotoxic, antiangiogenic, anti-restenotic or antithrombotic active agent and at least an alcohol as solvent for coating folded catheter balloons.
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2. Method of coating or filling the folds of a folded catheter balloon in which
a) an active agent-containing composition is delivered at the distal or proximal end of a fold of the folded catheter balloon and the fold is filled due to capillary forces; - or
b) a syringe which delivers a continuous flow of an active agent-containing composition is moved relative to the folded catheter balloon along the fold;
orc) a plurality of delivery openings being in series are pushed under the fold of the folded balloon and an active agent-containing composition is delivered simultaneously from the plurality of delivery openings into the fold. - View Dependent Claims (4, 5, 6, 7, 9, 10, 11, 12, 13, 14)
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3. Method of coating or filling the folds of a folded catheter balloon comprising the following steps:
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a) providing a composition comprising at least a contrast agent and at least an antiproliferative, antiinflammatory, antiphlogistic, cytostatic, cytotoxic, antiangiogenic, anti-restenotic or antithrombotic active agent and at least an alcohol as solvent; b) inserting the composition comprising at least a contrast agent and at least an antiproliferative, antiinflammatory, antiphlogistic, cytostatic, cytotoxic, antiangiogenic, anti-restenotic or antithrombotic active agent and at least an alcohol as solvent selectively into the folds of the folded catheter balloon by means of a syringe device; c) drying the composition comprising at least a contrast agent and at least an antiproliferative, antiinflammatory, antiphlogistic, cytostatic, cytotoxic, antiangiogenic, anti-restenotic or antithrombotic active agent and at least an alcohol as solvent by removing the solvent via evaporation or under reduced pressure. - View Dependent Claims (8, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification