| 摘要 |
An endoscope puncture needle (1) is provided with a flexible sheath (7) having a longitudinal axis and being deformed in curving fashion by a raising base (108), a flexible needle tube (3) having a needle tip (32a) and a distal-end opening (31) and being capable of moving relative to the sheath (7) inside the sheath (7), and a stylet (27) capable of advancing and retreating inside the needle tube (3) along a longitudinal axis line of the sheath (7) and having a distal-end surface (28a) capable of projecting and receding from the needle tube (3), the distal-end surface (28a) of the stylet (27) coming in contact with an inner surface of the sheath (7) having a curved shape, whereby the stylet (27) causes the needle tip (32a) to retreat so that the needle tip (32a) of the needle tube (3) separates from the inner surface of the sheath (7). |
