DRUG-SOLUTION INJECTION DEVICE

摘要

Provided is a technology that makes it possible to reduce the size and/or weight of a drive mechanism for a drug-solution injection device or the like. This drug-solution injection device (110), which is used to inject a drug solution into a patient, is provided with an electrostatic actuator (125) and a drive mechanism. The electrostatic actuator (125) has the following: a fixed-element member (162) on which a plurality of strip electrodes are formed; and a movable-element member (161) disposed so as to face the fixed-element member on which the aforementioned plurality of strip electrodes are formed. The electrostatic actuator (125) uses an electrostatic force to move the movable-element member (161) relative to the fixed-element member (162). The abovementioned drive mechanism has a movable member (121) that is moved by the driving force produced by the electrostatic actuator (125).