The utility model discloses a kind of waste needle structures for
cell filtration, it is related to medical instrument technical field, including waste needle
pipe, waste needle head, waste one-way valve and
cell column filter, the utility model is when using, first,
medical staff removes needle cover from the needle cover clamping groove on needle sealing cover, by guiding
cell into cell column filter, cell column filter removes
large particle material and
suspended solids of cell liquid, completes primary
filtration, the waste needle head of waste needle
pipe is inserted into cell column filter, by gravity, cell after primary
filtration enters waste needle
pipe, when waste liquid passes through waste needle pipe, inside pipe head, by the filter membrane supported by filter piece support Secondary retention cell, impurities and other
solid components, allow waste liquid to pass through, realize
solid-liquid separation;Then, waste one-way valve is installed on the outer wall surface of waste pipe upper side through, by internal rubber valve
flap valve structure, ensure that waste liquid unidirectional flow.