Venous transfusion adjusting and monitoring device and monitoring system

The invention provides a venous transfusion adjusting and monitoring device and monitoring system. The venous transfusion adjusting device comprises a holder which sleeves the outer side of a dropping pipette; an opening is formed in the side of the holder; a pushing block is contacted with the dropping pipette in the holder through the opening; a stepping motor drives the pushing block to move forward or backward so as to adjust the pipe diameter of the dropping pipette. By the venous transfusion adjusting device, when a venous transfusion speed is too fast, the stepping motor drives the pushing block to move forward to press the dropping pipette, so that the pipe diameter of the dropping pipette is reduced, and the venous transfusion speed is reduced; on the contrary, the stepping motor drives the pushing block backward to reduce the compression on the dropping pipette, so that the pipe diameter of the dropping pipette is increased, and the venous transfusion speed is increased; when the venous transfusion is ended, the stepping motor drives the pushing block to compress the dropping pipette, so that bubbles are prevented from entering a human body through the dropping pipette; medical workers do not need process the device at the site, the venous transfusion speed can be adjusted by the stepping motor, therefore the situation of no enough medical workers is greatly relieved.