| abstract |
A multi-balloon catheter system is provided including a catheter (22,122,222) having a first balloon (32,132,232), a second balloon (34,134,234) and a third balloon (36,136,236), and a fluid source (20) that inflates the first and second balloons by supplying fluid thereto to create a chamber (58,158), wherein the catheter includes a fluid pathway for delivering the agent, and the fluid source increases fluid pressure within the chamber by supplying fluid to the third balloon such that the agent is extravasated into tissue. |