An RFID chip (214) in which various data are recorded is installed on a medical solution syringe (200). A medical solution injection device (100) acquires the various data from the RFID chip (214) and performs a predetermined operation so as to correspond to at least a part of the various data. For example, when a variable pattern etc. of a medical solution is recorded as the RFID chip (214) in the medical solution syringe (200), the medical solution injection device (100) can inject the medical solution so as to correspond to a predetermined variable pattern. As a result, a large-capacity data can be easily inputted in the medical solution injection device, and the medical solution injection system can perform various operations.
