| 摘要 |
An intravascular treatment apparatus provides means for infusing a treatment site with an agent and means for positioning the delivery interface against the treatment site which operate independently of one another. In a preferred embodiment, the apparatus includes a flexible body having a deflectable support frame at its distal end. A plurality of platforms, each comprising a plenum and a delivery interface, is coupled to the support frame. The platforms may be deployed radially from the body by deflecting the support frame using an actuator shaft extending through a passage in the body. The platforms are connected to a supply passage through the body. In this way, the apparatus may be positioned within a body lumen, usually an artery, with the platforms near a treatment site. By actuating the actuator shaft, the platforms are deployed against the treatment site. Independently of the platform deployment, a therapeutic agent may be supplied to the platforms and expelled through the delivery interface and into the treatment site to impregnate the treatment site.
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