pathways as noted above some identified systems of the prior art suffer from the limitation that the existing multi lumen catheter designs do not describe pumping means and flow designs and flow controls for coordinately controlling emitting flow and recapture flow of agents such as would enabling recirculative flow between the outside of an outermost lumen and the inside of an interior or innermost lumen by providing independent pressure controlling systems pumps meters barriers and the like in each lumen or portal there is provided greater systemic control and relative control of flow capture reintroduction and emission of materials these controls may be directed manually or automatically using sensors to provide data upon which the automated systems can base changes in rates for example if the capture flow pressure is stronger than the emission flow pressure the dwell time of deliver agent will tend to be shorter and the concentration of actives in the captured liquid will tend to be higher interactive controls that sense the flow rates in the at least two lumens access lookup tables in processors and adjust the respective or relative flow rates and possibly original concentrations in the higher concentration agent supply lumen to assure compliance with intended diagnostic or treatment parameters it is to be noted that for convenience the catheters and lumens and flows have been shown in linear format it is understood in the practice of the present technology that the liquid environment e g blood vessel is not always reachable by a straight line path but is more likely to encounter curves in its passage and that the final targeted area where the catheter resides may require or desirably include that the catheter not be rigid and remain in a.