| 摘要 |
PURPOSE:To increase the accuracy of separate pouring and to enable to perform a number of suction and exhaust in a short time, by increasing or decreasing the amount of suction and exhaust for sample of blood scrum being tested body through the selection of the number of pistons. CONSTITUTION:The cylinder 41 is split for the inside into a plurality of cylinder chambers 41a, 41b, 41c and the suction and exhaust section 41d is made common. The pistons 42a, 42b and 42c are respectively inserted to the cylinder chambers 41a, 41b and 41c. In case of suction and exhaust, the operation frame 43 is driven for the suitable number to couple it with the operation piece of the corresponded piston and the amount of suction and exhaust for blood scrum being the tested sample can be increased or decreased. |
