透析用穿刺針に搭載する慣性センサによる穿刺手技の計測

抄録

The safety and reliability of the vascular access puncture are fundamental for the success of hemodialysis treatment, which promises less burden on the patients. The dialysis needing requires practiced manipulation skills with clinical wisdom that hardly passed down descriptively, especially on their subjective sensory experiences. This research proposes a practical method for measuring needle posture during the dialysis puncture with a miniature inertial measurement unit (IMU) mounted as an extension at the end of the needle hub. As an initial stage of the research, two clinical experts and two novice candidates participated in our study. The method utilized accelerations and geomagnetic data from the IMU, then assess three-dimensional angular displacements during the puncture to the skin vessel model. The difference in the penetration angle and its trends during dialysis needling seemed to represent their amount of technical skillfulness. The proposed method expects to record and quantify puncture skills on-site, applicable to skill enhancement, improving vascular access puncture reliability.