Patent ID: 9211135
Filing Date: 2015-12-15
Classification: A61B

Abstract:
1. An endoscopic instrument for removal of material, the instrument comprising: a rigid hollow shank defining a longitudinal axis and a tool at a distal instrument end, a head part directly connecting a proximal end of the tool to a distal end of the hollow shank, wherein the tool projects axially beyond a distal end of the head part along the longitudinal axis and the tool includes a first position in which the tool forms a straight line extension of the longitudinal axis and a second position in which the tool is angled with respect to the longitudinal axis, the tool being driven in rotation by a drive shaft guided in the hollow shank, the drive shaft including a distal drive shaft part and a proximal drive shaft part, a dumbbell-shaped first joint part including a first spherical body, a second spherical body spaced-apart therefrom along the longitudinal axis, and a web connecting the first and second spherical bodies, the first spherical body received in a hollow proximal end of the distal drive shaft part, the second spherical body received in a hollow distal end of the proximal drive shaft part, a single actuation rod being movable in the hollow shank in an axial direction of the hollow shank and having a second joint part movably coupling the head part to the single actuation rod, the second joint part being articulated on the single actuation rod and on the head part, such that by axial movement of the single actuation rod in a proximal direction the tool is brought into the second position, and by axial movement of the single actuation rod in a distal direction the tool is brought into the first position.