| 主权项 |
1. An Instrument (1) for cutting body tissue, comprising
an instrument shaft (2) with distal and proximal ends, a blade (3), which is arranged adjacent to the distal end (6) of the instrument shaft (2) and can be folded out with respect to a longitudinal axis (7) of the shaft (2) and can be rotated about the longitudinal axis (7), and an operating part (5) arranged at the proximal end (10) of the instrument shaft (2), whereinthe distal end (6) of the instrument shaft (2) can be inserted into a body cavity with tissue to be cut, through a trocar sleeve,a proximal end (14) of the blade (3) directed toward the operating part (5) can be laterally pivoted out away from the longitudinal axis about an end (46) of the blade that faces away from the proximal end (14) and that is distally articulated at an articulation point (19),a tissue stop (4) is arranged at the distal end (6) of the instrument shaft (2),in that the tissue stop can be brought into an active position in which a stop surface (47, 48) facing the blade (3) in the proximal direction has a specified fixed distance (50) from the articulation point (19),an outer sleeve (8) rotatable about the longitudinal axis (7) is arranged at the distal end (6) of the instrument shaft (2), said outer sleeve having a lateral opening (9) transverse to its longitudinal direction, from which the blade (3) can be pivoted out. |
