| 主权项 |
1. An operation tool for a fluid injector, comprising:
an outer cylinder having a first open end, a second open end, and a housing extended between the first open end and the second open end, the housing being formed such that a fluid injector having a multi-microneedle device is movable in the housing along a longitudinal center line of the fluid injector; and a selective movement mechanism configured to move the fluid injector between a first protruding position and a second protruding position in the housing of the outer cylinder, wherein the selective movement mechanism is configured such that, when the fluid injector is at the first protruding position, a plurality of microneedles of the multi-microneedle device is protruded out to a first distance from the first open end, and that when the fluid injector is at the second protruding position to discharge a fluid from the fluid injector via the microneedles, the microneedles are protruded out to a second distance from the first open end, the second distance being shorter than the first distance, and the selective movement mechanism includes a rotational-linear movement conversion mechanism which is interposed between the outer cylinder and the fluid injector, and configured to move the fluid injector between the first protruding position and the second protruding position along a longitudinal center line of the outer cylinder based on a direction and an amount of rotation of the outer cylinder relative to the fluid injector. |
