The invention provides a
cerebrospinal fluid drainage device and drainage method.The drainage device is provided with a drainage mechanism and a monitoring mechanism, the drainage mechanism is provided with a drainage tube, the drainage tube is provided with a dropping
bottle, and spherical liquid drops are generated in the dropping
bottle; the monitoring mechanism is provided with a volume measurer and a
timer; the volume measurer is arranged on the side surface of the dropping
bottle; the volume measurer is provided with a
laser transmitter and a
laser receiver, the
laser transmitter and the laser
receiver are arranged on the two sides of the dropping bottle, and the laser
receiver is used for receiving optical signals transmitted by the
laser transmitter; the laser emitter emits a
first light ray and a second light
ray, the
first light ray is arranged above the second light ray, and the
first light ray and the second light ray are both arranged under the
liquid drop; the drainage method comprises the following steps of: counting liquid drops: recording the number of the liquid drops generated in the dropping bottle by adopting the counter, and
numbering and recording in sequence;
liquid drop volume measurement: measuring and recording the volume of each
liquid drop by adopting a volume measurer; timing: recording the time t generated by the liquid drops by adopting a
timer; counting: counting the total drop number N of the generated liquid drops, and counting the total volume V of the generated liquid drops; and calculating: calculating the frequency f of generating the liquid drops by utilizing a formula f = N / t, and calculating the
discharge speed v of the
cerebrospinal fluid by utilizing a formula v = V / t.