SYSTEM AND METHOD FOR DELIVERING A BIOLOGICALLY ACTIVE MATERIAL TO A BODY LUMEN

摘要

A medical device system that is insertable in a body lumen for treating and/or
preventing injury to a body lumen wall is disclosed. The system comprises a
stent comprising a sidewall having a first edge and a second edge, and a
balloon capable of being disposed within the sidewall. The balloon has a first
end portion that is capable of contacting the first edge of the sidewall and a
second end portion that is capable of contacting the second edge of the
sidewall when the balloon is expanded. At least the first end portion of the
balloon comprises a first biologically active material. When the balloon is
expanded, the first end portion of the balloon extends axially beyond the
first edge of the sidewall in order to deliver the first biologically active
material to a portion of the body lumen wall that is adjacent to the first
edge of the sidewal.l. Methods for deploying the system are also disclosed.