Implantable devices and systems and methods for deploying the implantable devices within the body. The implantable devices include at least a main lumen (4) having a proximal end and distal end, but often include at least one side branch lumen (6a) to address implant sites having interconnected vessels. The delivery and deployment systems include at least one catheter (38) or an assembly of catheters for selectively positioning the lumens (4,6a) of the implant within target vessels as well as selectively deploying the implant.
