Multiple hole drug delivery balloon
AssigneeBoston Scientific Corporation
InventorSusan M. Ropiak
Life of this patent
Estimating the term…
Abstract
An inflatable medical device for delivery of medication to an organ in the body having a multi-lumen catheter and a hollow, inflatable channel-like medication deliverable balloon at the distal end of the catheter. A plurality of conduits extend along the balloon between the walls of the balloon for delivery of medications. Each conduit includes an array of closely spaced apertures for allowing medications in the conduits to transfer out of the conduits into a surrounding vessel after the balloon is inflated.
Claims14
A medical device for intravascular delivery of medications, said device comprising:
- (A) an inflatable balloon defined by an interior wall and an exterior wall extending along an axis said interior wall defining a central chamber,
- (B) a plurality of axially extending conduits disposed between said interior and exterior walls extending in parallel over substantially the entire length of said balloon, said exterior wall thereby having a given area coextensive with each said conduit,
- (C) means to inflate said balloon by expanding said control chamber,
- (D) means to deliver medications to said conduit, and
- (E) a port position at each said conduit, each port position consisting of a two-dimensional array of ports through said exterior wall to enable the delivery of medication from said corresponding conduit, said ports at each said port position being closely spaced axially and circumferentially and each of said ports in said array having a diameter that limits a transfer of a medication from said conduit by oozing through said port, the area of said port position being significantly less than the given area of said exterior wall that is coextensive with said corresponding conduit.
A medical device for the intravascular delivery of medications, said device comprising:
- (A) a catheter having a distal end and a plurality of lumens therethrough,
- (B) a hollow, inflatable, balloon defined by interior and exterior walls and having a distal and proximal ends of the balloon and disposed on the distal end of said catheter, the interior of said balloon being in fluid flow relationship with one of said lumens thereby to provide the interior of said balloon with inflation fluids,
- (C) a plurality of axially extending, parallel conduits formed intermediate said interior and exterior walls for receiving medications, said exterior wall having a given exterior wall area that is coextensive with each said conduit,
- (D) means for delivering medications through another of said lumens to said conduits, and
- (E) a single port position at each said conduit, each said port position consisting of a two-dimensional array of closely spaced ports through said exterior wall to enable the delivery of medication from said corresponding conduit, each of said ports in said array at a port position being closely spaced axially and circumferentially and each of said ports in each said array having a diameter that limits a transfer of a medication from said conduit by oozing through said ports, the area of each said array being significantly less than the area of said exterior wall that is coextensive with said conduit.
Dependencies are inferred from the claim text.