Microfluidic three-dimensional cell chip with flow regulation

Abstract

The utility model discloses a kind of microflow hole three-dimensional cell chips with flow regulation, the utility model relates to cell culture technical field, including lower layer chip, upper layer chip is equipped in lower layer chip, each upper layer chip is provided with flow control component and culture component;Flow control component includes main channel, microflow hole main body, flow control board, reflux channel, medium inlet and medium outlet, microflow hole main body is communicated with main channel, reflux channel, flow control board is slidably connected with the inner wall of upper layer chip by side face and is located in microflow hole main body to adjust flow, medium inlet is communicated with main channel, the utility model has the advantages that: through flow control board and external magnetic field magnetic linkage, cooperate spring reset structure, the through-flow cross-sectional area of main channel and microflow hole main body can be flexibly adjusted, the fine control of medium flow rate is realized, spring can offset magnetic field force fluctuation, avoid flow control board displacement, guarantee flow stability, adapt to the demand of different cells to material exchange rate.