1. A reduced pressure therapy system comprising a first fluid passage in communication with a reduced pressure source, a second fluid passage and a reduced pressure manifold comprising:! essentially gas impermeable barrier,! at least one outer conduit defining a lateral edge of the inner region, the outer conduit and a substantially gas impermeable barrier surrounding a portion of said inner region, the outer conduit being in fluid communication with one of the first and second fluid channels and has at least one hole flowing in communication with the indicated inner region, and! an inner conduit at least partially located in said inner region and flowingly communicating with another of the first and second fluid channels, wherein the inner conduit has at least one opening flowing in communication with said inner region. ! 2. The system according to claim 1, in which the inner region has an open end opposite the essentially impervious to gas barrier, which is made with the possibility of placement next to the tissue site. ! 3. The system of claim 2, wherein the substantially gas impermeable barrier substantially restricts fluid flow to said inner region when the inner region is adjacent to the tissue site. ! 4. The system of claim 1, wherein the outer conduit is fluidly connected to the second fluid passage, the inner conduit is fluidly connected to the first fluid passage, and the fluid flows through said inner region from1. Система терапии пониженным давлением, содержащая первый канал для текучей среды, сообщающийся с источником пониженного давления, второй канал для текучей среды и магистраль пониженного давления, содержащую: ! по существу непроницаемый для газа барьер, ! по меньшей мере один наружный трубопровод, ограничивающий боковой край внутренней области, причем наружный трубопровод и по существу непроницаемый для газа барьер окружают часть указанной внутренней области, при этом наружный трубопровод проточно сообщается с одним из первого и второго каналов