A Study to the Blood Flow Model in the Micro-Channels Based on the Video and Image Processing Technology

Micro-fluidic-System plays a great role in the blood processing. The blood flow properties are very difficult to describe with mathematic models because there are a mount of cells in it. The models of blood flow which pass through the micro-channels with varied size and shape must be studied to design the appropriate micro-structure and optimize operation. The laminar flow model and two-phase flow model are compared in this paper. The micro-channels-chip in the experiment system was made of silicon and glass using MEMS technology. The states of blood flow in the microchannels are observed and recorded with a high speed CCD camera. We adopt the digital video and image processing technology to analyze those image data obtained from the experiment. In contrast to the theoretical model, the experiment results showed that the two-phase flow model of the blood in the micro-channels is much more exact than the laminar flow. This result will be helpful to the structural design of the micro-fluidic system aiming to blood process.