| 摘要 |
The instrument (1) has a wire rod (4) designed as a core (5), and a tube (2) designed as a casing (3). The core is arranged in the casing, where the core is slidable with respect to the casing. The casing includes a flushing connection (9) at a distal end. The flushing connection is accessible in an assembled state of the instrument. A gap between the casing and the core is small in relation to a cross-section. An overload protection device (23) is provided with an elastic element (22), which encloses the flushing connection and acts against a thrust bearing (21) of the flushing connection. |
