To permit a nurse, etc., to easily grasp the number of fluid supplementation drippings by providing an instillation cylinder pinching part for pinching an instillation cylinder, a fluid supplementation instillation detecting means for detecting the instillation of a fluid supplementation, a counting means for counting the number of drippings and a display means for displaying the counted number of fluid supplementation drippings.
When the operation of a star key 8b is detected, an optical sensor 10 detects the dripping fluid supplementation and permits a value to be stored in a counter to be +1 at the time of detection. When the detected fluid supplementation is the first one, a present time is read from a clocking part 18 and stored in RAM 16 as a dripping start time. Then, the number of dripping for 15 seconds, for example, is calculated based on the time interval between last time and this time fluid supplementation detecting times. When the operation of a result display key 8d is detected, a required time till a dripping start to an end is calculated by the start time stored in RAM 16 and the present time so that the calculated required time and the value to be stored in the counter, that is, the whole number of drippings are displayed in a display part 6.
MAEHAMA MICHINORI
AIKAWA MIHA
KANEDA KAZUKO
