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US 10,994,104 B2Granted
Balloon catheters for body lumens
AssigneeUrotronic, Inc.
InventorsLixiao Wang, Peter Barnett
Life of this patent
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Abstract
Various embodiments disclosed relate to drug-coated balloon catheters for treating strictures in body lumens and methods of using the same. A drug-coated balloon catheter for delivering a therapeutic agent to a target site of a body lumen stricture includes an elongated balloon having a main diameter. The balloon catheter includes a coating layer overlying an exterior surface of the balloon. The coating layer includes one or more water-soluble additives and an initial drug load of a therapeutic agent.
Claims29
A method for treating a body lumen stricture, the method comprising:
- flushing the body lumen stricture with a flushing media comprising water, saline solution, or a water solution comprising at least one water-soluble additive;
- inserting a balloon catheter and a scope into a body lumen such that the balloon catheter is in the body lumen stricture, the balloon catheter comprising an elongated balloon, the balloon comprising a coating layer overlying external balloon surfaces, the coating layer comprising at least one additive and an initial drug load of a therapeutic agent, wherein the balloon catheter and the scope are positioned side-by-side or the balloon catheter is loaded into the scope;
- holding the balloon catheter in position for a soaking period prior to inflation to hydrate the coating layer in the flushing media;
- inflating the balloon catheter in the body lumen stricture to contact walls of the body lumen stricture with the coating layer and until the stricture in the body lumen is dilated to a desired diameter;
- deflating the balloon catheter;
- and
- withdrawing the balloon catheter from the body lumen.
4 more elements
Dependencies are inferred from the claim text.