| 摘要 |
The invention relates to a device (1, 2, 3, 4) for quickly stopping a medical drilling tool (5, 6, 7, 8), comprising: a drilling tool (5, 6, 7, 8) having a connection end (9) for connection to a drive (10), an abrasive working end (11), and a body (12) which extends between the connection end (9) and the working end (11) and has a longitudinal extension (L) extending along a longitudinal axis (13) of the drilling tool (5, 6, 7, 8), wherein the drilling tool (5, 6, 7, 8) comprises a hollow outer sleeve (14) in which a probe (16) is accommodated which can be moved along the longitudinal axis (13) relative to the outer sleeve (14), such that at least a part of the probe (16) can be moved out of the outer sleeve (14) through an opening (17), wherein the probe (16) is designed as an elongate pin (16A) having a first end (18A) and a second end (18B), and an electromagnetic sensor (19) for detecting a relative movement between the outer sleeve (14) and the probe (16), wherein the first end (18A) of the probe (16) which faces the connection end (9) is accommodated in the interior of the hollow outer sleeve (14) of the drilling tool (5, 6, 7, 8), the electromagnetic sensor (19) is arranged along the longitudinal extension (L) of the body (12) of the drilling tool (5, 6, 7, 8) and the drilling tool (5, 6, 7, 8) has a duct (20) for a treatment fluid which extends along the longitudinal axis (13). |
