A device for local administration of a medical fluid, having a hose , which is flexibly deformable and which has a hose wall, wherein the hose wall has an outer wall of a first material which is arranged radially to the outside, and the hose wall has an inner wall of a second material which is arranged radially to the inside and which delimits an inner conduit of the hose , wherein, in a distal portion of the hose , the hose has multiple orifices in the hose wall, wherein the multiple orifices connect the inner conduit of the hose with the surroundings of the hose , wherein the distal portion of the hose is delimited by a distal end of the hose , wherein the multiple orifices in the inner wall are reversibly closable in fluid-tight manner as a function of a physical quantity acting on the second material, in particular as a function of a pressure from the medical fluid acting on the second material, or the multiple orifices in the outer wall are reversibly closable in fluid-tight manner as a function of a physical quantity acting on the first material, in particular as a function of a pressure from the medical fluid acting on the first material, wherein, in a proximal portion of the hose , the hose does not have any orifices in the hose wall which connect the inner conduit of the hose with the surroundings of the hose in a liquid-permeable manner, the device further having a closing element with which the hose is closed or closable in liquid-tight manner at the distal end of the hose , wherein the closing element is manually insertable into the distal end of the hose , wherein a proximal end of the hose is connected or connectable to a container for the medical fluid, in a liquid-permeable manner, in such a way that the medical fluid is pressable out of the container through the proximal end of the hose into the inner conduit of the hose and pressed out to the surroundings of the hose through the multiple orifices . a hose , which is flexibly deformable and which has a hose wall, wherein the hose wall has an outer wall of a first material which is arranged radially to the outside, and the hose wall has an inner wall of a second material which is arranged radially to the inside and which delimits an inner conduit of the hose , wherein, in a distal portion of the hose , the hose has multiple orifices in the hose wall, wherein the multiple orifices connect the inner conduit of the hose with the surroundings of the hose , wherein the distal portion of the hose is delimited by a distal end of the hose , wherein the multiple orifices in the inner wall are reversibly closable in fluid-tight manner as a function of a physical quantity acting on the second material, in particular as a function of a pressure from the medical fluid acting on the second material, or the multiple orifices in the outer wall are reversibly closable in fluid-tight manner as a function of a physical quantity acting on the first material, in particular as a function of a pressure from the medical fluid acting on the first material, wherein, in a proximal portion of the hose , the hose does not have any orifices in the hose wall which connect the inner conduit of the hose with the surroundings of the hose in a liquid-permeable manner, the device further having a closing element with which the hose is closed or closable in liquid-tight manner at the distal end of the hose , wherein the closing element is manually insertable into the distal end of the hose , wherein a proximal end of the hose is connected or connectable to a container for the medical fluid, in a liquid-permeable manner, in such a way that the medical fluid is pressable out of the container through the proximal end of the hose into the inner conduit of the hose and pressed out to the surroundings of the hose through the multiple orifices . <EOS>