| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary set dial with excellent operability which can change analogically the numerical value according to the rotational frequency (rotational speed) and rotational direction. SOLUTION: Various syringes are held removably under the unmoved state and a pusher of the syringe is set to the immovable state on a slider means. A content in the syringe is accurately sent out by driving the slider means, while a setting means is constitutionally provided which sets set values for sending the content. Then, the setting means 6 is composed of a fixed shaft body 72 inplanted in the body side 2 of a syringe pump, a detecting part 71 set and disposed in the drip-proof state around the shaft body, a bearing part 73 attached removably to the fixed shaft body 72, an actuator causing the detecting part 71 to detect the rotational frequency and rotational direction and a rotary dial 6 formed integrally with a drop-out preventing part 70. |
