Recently, with the increase of diabetic patients, "painless blood collection" is strongly required. In order to respond to the needs, this laboratory is developing a painless microneedle mimicking mosquito. Microneedle is thin and easy to buckle, so it is necessary to prevent buckling of the needle by mimicking the mosquito needle and puncture method. From the observation this time, it turned out that mosquitoes imparted rotation and vibration when puncturing and blood sucking. Therefore, in this paper, we imitated mosquitoes, imparted rotation and vibration to the injection needle, conducted a puncture experiment, and examined the invasiveness to the skin.
