Fat cutter and integrated machine for preparation of in vitro fine-particle fat

A fat cutter, comprising a fat inlet channel, a fat outlet channel, at least one set of blades disposed between an outlet of the fat inlet channel and an inlet of the fat outlet channel, and a housing that seals a space, wherein the outlet of the fat inlet channel, the inlet of the fat outlet channel, and the at least one set of blades are located in the space, wherein a fat inlet of the fat inlet channel is connected to a large-diameter liposuction tube, and a fat outlet of the fat outlet channel is connected to a high-negative pressure device;

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• the outlet of the fat inlet channel and the inlet of the fat outlet channel are oppositely provided, and a first gap is provided between the outlet of the fat inlet channel and the inlet of the fat outlet channel to form an annular cutting slot matching a thickness of the at least one set of blades, the outlet of the fat inlet channel is provided above the inlet of the fat outlet channel, and in a working state, cutting edges of the at least one set of blades pass through a line connecting the outlet of the fat inlet channel and the inlet of the fat outlet channel to cut fat particles.