| 摘要 |
PURPOSE:To provide a fluid feeding tool which is easily operated during using and is portable by using an apparatus wherein a fluid storing part is shrunk by the pressure of the gas generated at an electrochemical cell part to feed the fluid in the fluid storing part and, at the same time, when the fluid storing part is shrunk and feeding of the fluid is finished, and finishing of feeding the fluid is displayed by bringing electric contact points into contact with each other. CONSTITUTION:A fluid storing part 2 being storable stored in a container 1 of a fluid feeding tool main body, an electrochemical cell part 5, two electric contact points 12 attached on the fluid storing part 2 and a means 14 for displaying finishing of feeding of the fluid are provided. The fluid storing part 2 is shrunk by the pressure of the gas generated in the electrochemical cell part 5 to feed the fluid in the fluid storing part 2. At the same time when the fluid storing part 2 is shrunk and feeding of the fluid 3 is finished, the two electric contact points 12 and 13 are brought into contact with each other and the means 14 for displaying finishing of feeding the fluid is worked. It is possible by this simple method to feed accurately a small amt. of the fluid for a long time. In addition, miniaturization and lightweighting are possible and it can be made portable. |
