| 摘要 |
PROBLEM TO BE SOLVED: To provide a blood collection system reducing pains at the time of paracentesis, simplifying constitution and facilitating an operation. SOLUTION: A double lever connection mechanism is moved from a first bend position via a straight position corresponding to the maximum paracentetic depth to a second bend position during a piercing motion and is moved from the second bend position via the straight position corresponding to the maximum paracentetic depth to the first bend position during a hitting preparing motion. The degree of freedom of the motion of a lancet is limited so as not to project the tip of the lancet from an exit opening during the paracentetic operation preparing motion. |
