| 摘要 |
<p>In a chemical solution injector, an injection head to which a chemical solution syringe is attached is rotatable between a preparation attitude where the leading end of the injection head is oriented upward, and, an injection attitude where the leading end is oriented downward, and these attitude are determined by an attitude -determining means (122) to operate and control a syringe-driving mechanism (117) that drives a chemical solution syringe (200). First, initial state is made in the device such that only chemical solution suction is freely operable. Then, the device is set, when the chemical solution suction is completed and the injection head (110) is in preparation attitude, to a state where only bubble removal is performable, and is set, when the bubble removal is completed and the injection head (110) is the injection attitude , to a state where only chemical solution injection is performable. Chemical solution injection with a chemical solution syringe in which bubble removal has not been complete can be automatically prevented.</p> |
