| 摘要 |
PROBLEM TO BE SOLVED: To provide a paracentesis device and a paracentesis method capable of realizing accurate and sufficient paracentesis when a living tissue is subjected to the paracentesis.SOLUTION: A paracentesis device 1 comprises a paracentesis needle 11 for puncturing a living tissue which has a long shape and may be deformed to make a curve, and a curvature modifying part 14 modifying curvature of the paracentesis needle 11 during a process of puncturing the living tissue with the paracentesis needle 11. The curvature modifying part 14 is so constructed that first paracentesis in which the curvature relative to the paracentesis needle 11 is substantially zero and second paracentesis in which the curvature is larger than that of the first paracentesis are sequentially operated. |
