| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that a pusher detecting element with a long mobile stroke is required in order to detect the reliable mounting of the pusher in a conventional structure due to a difference in the thickness of a pusher flange in exchanging syringes, etc., and an adverse affect is given to accuracy in feeding a liquid owing to a looseness in a liquid feeding direction when the pusher is mounted. <P>SOLUTION: The pusher is tightly stuck to a slider in the structure of the present invention regardless of the thickness of a pusher flange in exchanging the syringes, etc. Then, the pusher mounting is reliably detected even in the pusher detecting element with the short mobile stroke and also accuracy in feeding the liquid is raised. <P>COPYRIGHT: (C)2007,JPO&INPIT |
