fluid distributor 10 includes a dosing chamber (dosing chamber 20), the piston member 14, a fluid outlet in which a fluid is distributed through 52, a fluid conduit for conveying the fluid toward the fluid outlet from the dosing chamber (34, 46), and a sealing portion for sealing the fluid outlet (50, 54) includes, the piston member is, a) the dosing moves in a first manner to the chamber via the fluid conduit from the dosing chamber for pumping fluid toward the fluid outlet, and b) the dosing has a first end 22 that acts as a piston within the dosing chamber for filling the dosing chamber with fluid from the source of fluid when moved in a second manner for the chamber, the piston member outside the dosing chamber for setting the position is formed in the sealing portion, at least a portion has a second end 42, the sealing portion being movable from a normal closed state to the open state, the seal the fluid conduit and the fluid outlet in the normally closed state and preventing fluid communication between the open state is provided in the seal fluid communication between the fluid conduit and the fluid outlet, wherein said fluid dispenser is moved in the first end of the first manner to the piston member and the fluid in the fluid conduit is pressed to a sufficient degree to ensure that the moving parts of the seal from the normally-closed state to the open state so that fluid pumped through said outlet. The one-way valve (31) is supported by the first end of the piston member for controlling the flow of fluid from the dosing chamber and into the dosing chamber. The fluid conduit comprises a section 34, for example, the lumen (lumen) extending through the piston member.유체 분배기(10)는 도우징 챔버(dosing chamber 20), 피스톤 부재(14), 유체가 관통하여 분배되는 유체 유출구(52), 상기 도우징 챔버로부터 상기 유체 유출구를 향하여 유체를 이송하기 위한 유체 도관(34, 46), 및 상기 유체 유출구를 밀봉하기 위한 밀봉부(50, 54)를 포함하며, 상기 피스톤 부재는, a) 상기 도우징 챔버에 대해 제 1 방식으로 이동할 때 상기 도우징 챔버로부터 상기 유체 도관을 통하여 상기 유체 유출구를 향하여 유체를 펌핑하기 위해, 그리고 b) 상기 도우징 챔버에 대해 제 2 방
