Abstract
This paper introduces an implantable blood separating device using a curved and branched channel. The separation is aiming at lowering the coagulability of blood by reducing platelets, one of the typical coagulation factors. For applying blood separation inside the body, the device is required to perform in the condition of more than 800 mL/min of blood flow rate and 80 mmHg of pressure. These factors are not suitable for microsystem because of its enormous pressure loss which blocks the blood flow. Therefore, we fabricated the channel of 2.5 mm square section with acrylic board and conducted in vitro experiments with conserved cow blood to indicate the separation capacity of the device. We deduced the relation between hematocrit and blood coagulations by experiments, which verified that the proposed device was effective.
