Patent ID: 8808168
Filing Date: 2014-08-19
Classification: A61B,A61M,Y10T

Abstract:
1. An instrument, comprising a headpiece at a proximal end, a shaft connected to said headpiece, said shaft can be deflected at least in a distal end area thereof, a deflection mechanism for deflecting said shaft, said deflection mechanism having control wires and a control element for controlling a deflection movement of said deflection mechanism via said control wires, and a lock for locking said deflection mechanism, wherein said lock has a catch mechanism connected to said control element in such a way that said catch mechanism, without actuation of said control element, is automatically forced into a locking position, and wherein a movement of said control element in a direction first opens said catch mechanism and only then permits a deflection of said shaft and allows said deflection mechanism to move over its entire deflection range, wherein a further movement of said control element in said direction deflects said deflection mechanism; and, wherein a release of said control element in any position of said movement causes said locking mechanism to return to the locking position, thereby locking said deflection mechanism in a deflected position, wherein said catch mechanism has a row of teeth into which a movable detent can be engaged with a positive locking action, which detent is moved out of an engagement with said row of teeth while moving said control element.