| 摘要 |
An ultrasonic surgical instrument is provided with a sheath (22) including a distal end and a proximal end, and an ultrasonic probe (23) to be inserted into the sheath (22), the ultrasonic probe including an interpolating portion (23c) positioned in the sheath (22), and a hook-like treatment portion (26) arranged at a distal end of the interpolating portion (23c) so that the treatment portion (26) protrudes from the sheath (22). The treatment portion (26) includes an extending portion (36) which extends obliquely forward and downward from the upper portion of the distal end of the interpolating portion (23c), and has a recess (37) formed under the extending portion (36). |
