| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a portable medical solution administration device capable of enhancing a filling speed of a medical solution relative to an administration speed of the medical solution without enlarging a body part to be fitted to an administration part and carried.SOLUTION: The medical solution administration device includes: an internal motor part; a reduction gear device fixed to a rotating shaft of the internal motor part; a final gear that is provided, with it directly or indirectly fitted to the reduction gear device; a feed screw that is provided on the rotating shaft of the final gear for sliding a plunger in a syringe for storing the medical solution; and a reduction gear ratio changeover part that changes over between a reduction gear ratio from the rotation of the internal motor part to the rotation of the final gear, and a reduction gear ratio from the rotation of an external motor part to the rotation of the final gear.</p> |
