Balloon in balloon chemotherapy catheter and method

摘要

An apparatus for administering a drug to a tumor of a patient includes a first balloon made of a semi-permeable material in which the drug is disposed. The apparatus includes a second balloon disposed in the first balloon, which when expanded forces the drug out of the first balloon, the first and second balloons adapted to be positioned in the tumor for a predetermined post-operative period. A method for administering a drug to a tumor of the patient includes the steps of placing a first balloon having a second balloon disposed in the first balloon in the tumor in the patient. There is the step of filling the first balloon with the drug. There is the step of filling the second balloon with a fluid to expand the second balloon and cause the drug in the first balloon this to be driven out of the first balloon into the tumor.