(O2)11=9+7.【Double one handed surgical knot】Left middle finger+Right index finger/Right rotation×2.

◆Two handed surgical knot (A)
• ◆Two handed surgical k...
◆Two handed surgical knot (B)
• ◆Two handed surgical k...
◆Two handed surgical knot (C)
• ◆Two handed surgical k...
◆One handed surgical knot
（+ Double one handed surgical knot）
• ◆One handed surgical k...
◆Double one handed surgical knot
• ◆Double one handed sur...
◆Instrument tie / Needle holder
• ◆Instrument tie / Need...