| 摘要 |
PURPOSE: To provide a medicinal liquid injector which is capable of continuously dosing an adequate amt. of a medicinal liquid and is simple by providing this injector with a medicinal liquid injecting part having a needle projected perpendicularly from a flatly arranged medicinal liquid storage part and a medicinal liquid transfer means for transferring the medicinal liquid in this medicinal liquid storage part to the medicinal liquid injecting part. CONSTITUTION: The medicinal liquid 1 is stored in the spirally formed tubular plane medicinal liquid storage part 2. The one end of the medicinal liquid storage part 2 is provided with the medicinal liquid injecting part 4 having, for example, three pieces of the needle 3. The needles 3 are projected in the direction perpendicular to the flatly arranged medicinal liquid storage part 2. A highly water absorptive material 5 and water 6 are packed in the terminal part of the medicinal liquid storage part 2. This highly water absorptive material 5 and the water 6 have a function as a transfer part to gradually extrude the medicinal liquid 1 outside from the needles 3. The highly water absorptive material 5 induces volumetric expansion by internally absorbing the water 6 when the material comes into contact with the water. The medicinal liquid 1 is transferred by the expanding force generated in such a manner. The adequate amt. of the medicinal liquid is continuously injected without a fluctuation in its flow rate by providing the flat medicinal liquid storage part 2 with the needles 3 in the direction perpendicular thereto. |
