| 摘要 |
The invention relates to a surgical instrument (300), particularly an endoscopic instrument, comprising a shaft (302) for introducing into an orifice of a patient's body, said shaft having a distal and a proximal section (304, 306), and an engagement unit (308) being arranged on said distal section (304). According to the invention, the shaft (302) comprises a material measure (316) which can be scanned using a sensor device in order to determine a penetration depth and/or rotational position of said instrument. The invention also relates to a manipulator, a retaining arm, a system, and a method. |
