METHOD, MICROCHANNEL STRUCTURE AND MICROCHANNEL SYSTEM FOR REMOVING CIRCULATING TUMOR CELLS IN BLOOD

摘要

The present invention provides a microchannel structure for removing circulating tumor cells in a circulating blood system without damaging cells in the blood, wherein the microchannel is loaded with a plurality of beads. The microchannel structure includes: a blood sample entrance passing a blood sample therethrough; a bead mooring section including: a first end connected to the blood sample entrance; a second end; a first section being relatively close to the first end, and cooperating with the first end to cause the plurality of beads to form a bead array in the bead mooring section for decreasing a flow rate of the blood sample through an interstice among neighboring ones of the plurality of beads; and a second section being relatively close to the second end, and causing the treated blood sample to smoothly flow therethrough; and a blood sample exit connected to the second end. One of the applications of this invention is to remove cancer cells in cancer patient's circulating blood system.