Patent ID: 9623216
Date: 2017-04-18
CPC Classifications: A61M

Claim:
1. An adjustable balloon catheter comprising: an inner tubular member having a proximal end portion, a distal end portion, and a length therebetween, the inner tubular member further having an inflation lumen and a fluid lumen defined therein; at least one expandable member coupled to the distal end portion of the inner tubular member and having an inner chamber defined therein in fluid communication with the inflation lumen, the at least one expandable member transitionable between a deflated configuration and an inflated configuration by inflation medium from the inflation lumen, wherein the at least one expandable member is in fluid communication with the inflation lumen, the at least one expandable member further having an exterior surface along a working length thereof, the exterior surface defining at least a portion of a compartment along the working length when in the inflated configuration, the exterior surface having at least one beneficial agent release structure defined therein, the at least one beneficial agent release structure including at least one pore structure in fluid communication with the fluid lumen and in fluid communication with the compartment when in the inflated configuration; an outer tubular member movable relative to the inner tubular member, the outer tubular member including a distal end, the outer tubular member being moveable between an extended position disposed over the expandable member and a retracted position proximal to the extended position, the outer tubular member being selectively positioned between the extended position and the retracted position to define an exposed length of the working length of the at least one expandable member, wherein beneficial agent can be introduced through the fluid lumen and released out the at least one pore structure into the compartment when the at least one expandable member is in the inflated condition and the outer tubular member is retracted proximal to the compartment.