This paper proposes a novel trainer for training of blood collection with an injector, an essential skill in medical and nursing fields. An optical motion capturing system and a projector are employed in the proposed system, in addition to the conventional blood collection trainer. The proposed system guides the injector to ideal position and posture until piercing the surface of the simulator. Then, after piercing, subsurface information including the position and the depth of the tip is indicated. Experimental results with subjects have demonstrated that the feedback provided by the proposed system is useful to improve the skill of the blood collection.
