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US 2003/0158517 A1Published application
Balloon catheter for delivering therapeutic agents
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorLyudmila Kokish
Life of this patent
Estimating the term…
Abstract
A drug delivery device for delivering therapeutic agents and method of making such a device. The device including an inflatable balloon having a plurality of holes formed in the wall of the balloon. A microporous coating covers a portion of the outer surface of the wall of the balloon. The thickness of the coating and the size of the micropores can permit controlled delivery of a substance from the micropores of the coating and into the tissue of a patient's lumen.
Claims21
A drug delivery device, comprising:
- an elongated shaft having a distal end and a proximal end;
- and
- an inflation assembly coupled to said distal end of said elongated shaft, said inflation assembly including an inflatable balloon having a plurality of holes defined in a wall of said balloon;
- and
- a microporous coating covering an outer surface of said balloon wall, said microporous coating having a plurality of micropores of a size that permits controlled delivery of a substance from the elongated shaft to said holes in said balloon and through said micropores of said coating covering said balloon.
2 more elements
A method for making a drug delivery device comprising:
- providing a catheter-based device having a porous inflatable member secured at a distal end of said device;
- coating said porous inflatable member with a first and a second solution;
- and
- drying said coating to produce a precipitate on said porous inflatable member.
1 more element
Dependencies are inferred from the claim text.