| 摘要 |
<p>In a liquid injector, a piston is pressed by a piston-driving mechanism into a cylinder of a liquid syringe that is held by a cylinder-holding structure, and a stress detection means detects the stress of this pressure. The piston-driving mechanism is displaceably supported by the main body of the injector, and the stress detection means, which is fixed to this injector main body, detects the stress that acts upon the piston-driving mechanism. The configuration of this liquid injector is simple because the stress detection means is not arranged on the movable part of the piston-driving mechanism, and the liquid injector therefore exhibits improved productivity and reliability. <IMAGE> <IMAGE></p> |
