LIQUID TRANSFER DEVICE, HEMANALYSIS APPARATUS, AND THEIR MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To overcome the problem that a pump using an electric permeation flow for drawing in blood and electrolyte solution requires a high voltage of kV and a person to be measured may be injured as in electric shock in a hemanalyzing apparatus, and for example a hydrogen gas is generated and the pH of the solutions vary for greatly affecting analysis near an electrode in the electrolyte solution and blood due to the use of the high voltage and the metal electrode. SOLUTION: The sectional area in a transfer means channel 201 is made smaller than that of a channel at the upstream of the transfer means. Also, since the volume of blood or the like to be sucked decreases if the sectional area of the transfer means channel 201 is decreased, reduction in the total flow rate can be inhibited by providing pluralities of branch channels having a small sectional area in parallel by branching the transfer means channel 201. Further, a photo-setting gel is used as electrodes 202 and 203, current is reduced even if a voltage is applied between the electrodes as compared with the conventional case using the metal electrode, and electrochemical operation is inhibited, thus inhibiting the generation of oxygen and hydrogen gases and variation in the pH of electrolyte solution.