| 摘要 |
An ultrasonic puncture needle according to the present invention comprises a sheath for being inserted into a treatment tool insertion channel of an ultrasonic endoscope, and a needle tube for being inserted into tissue within the body cavity through the sheath, which includes multiple staggered-array doughnut-shaped recesses over a predetermined range on the surface of the tip portion of the needle tube from the portion near the tip thereof. <IMAGE> |
