#$%^&*AU2019101118A420191024.pdf#####ABSTRACT The present invention provides a device for testing a blood or urine osmotic pressure, including a determination tube and a water box. The determination tube includes a receiving groove and a graduated tube, the receiving groove is an enclosed pipe body which is an enclosed space composed of a top surface, a bottom surface and at least one side surface, the material of both the side surface and the bottom surface is a reverse osmosis membrane, the top surface is provided with an insertion hole matched with the graduated tube, the graduated tube is a straight tube that has openings at two ends thereof and has a scale, one end of the graduated tube is detachably connected to the insertion hole on the top surface of the receiving groove, the other end of the graduated tube is located outside the receiving groove, the graduated tube is in communication with an inner space of the receiving groove, the water box is an enclosed box body that is provided with a socket and an overflow hole on the top thereof, and the receiving groove can enter the socket along a vertical direction. The device can quickly determine the blood or urine osmotic pressure by applying the reverse osmosis principle, and has the advantages of simplicity, convenience and practicality.Tube sectional area S Liquid level ascending --_ - -- -- height H 12 13 Start End FIG.1
