| 摘要 |
PROBLEM TO BE SOLVED: To quantitatively supply a fluid such as a fluid supplementation without using a power source such as a battery. SOLUTION: At the time of quantitatively supplying the fluid supplementation in a fluid supplementation bottle by a transfusion pump, a main spring and plural ring arrays connected thereto are provided as a rotation driving source for rotate-driving the supplementation pump and one of the ring arrays is connected to the driving shaft of the transfusion pump through a clutch. The rotor 31 of a power generation speed governor 30 is connected to the final ring of the rotation driving source, and a brake circuit 33 is connected to a stator coil 32b of the governor 30. In a rotation control circuit 60 whose power source is the induced voltage of the coil 32b, a target speed pulse signal set by a programmable frequency divider 62 and the rotation detecting pulse signal of a comparator 63 detecting the induced voltage are supplied to an up/down counter 64, and a brake control circuit 65 controls a brake circuit based on a count value expressing the difference between the number of pulses of both of them to rotate the transfusion pump at a fixed speed. |
