| 摘要 |
<p>A compact syringe pump having a high quantitative accuracy and a high durability is provided. The syringe pump comprises a motor (1), a rotating cylinder (3), a moving element (4), a guide means for introducing the moving element (4) in an axial direction of the rotating cylinder (3), a piston rod (9) disposed on the moving element (4) and a cylinder (81) within which the piston rod (9) moves, wherein the guide means comprises a guide pin (5) extending through the moving element (4) in the axial direction of the rotating cylinder (3) and a pair of upper supporting member (6) and lower supporting member (7) for supporting both ends of the guide pin (5) so that the guide pin (5) becomes in parallel to the axial direction of the rotating cylinder (3), the upper supporting member (6) rotatably supports the rotating cylinder (3) at an upper end portion of the rotating cylinder (3) and the lower supporting member (7) rotatably supports the rotating cylinder (3) at an upper surface portion of the bottom portion (3a) of the rotating cylinder (3), thereby preventing the rotating cylinder (3) from swinging. <IMAGE></p> |
