SURGICAL INSTRUMENT WITH A STEP STRETCH Russian patent published in 2018 - IPC A61B17/68 A61B17/72 A61B17/29 A61B17/295 

FIELD: medicine.

SUBSTANCE: invention relates to medicine. Surgical stapling instrument contains an end effector and a trunk having a longitudinal axis. End effector contains the first branch and the second branch, first jaw being movable relative to the second jaw. Distal end of the trunk contains the articulation associated with the end effector, and the first and second hinge rods. Articulation is adapted to rotate the end effector from a first position in which the end effector is aligned with the longitudinal axis of the barrel to a second position in which the end effector is at an angle with respect to the longitudinal axis of the barrel. Distal end of each hinge rod is bendable outwardly into the deflected position within the trunk when the end effector is in the first position. Distal end of each hinge rod is configured to bend inwardly from the deflected position within the trunk when the end effector moves between the first and second positions.

EFFECT: invention provides an extension of the range of movement and positioning of the end effector of the surgical instrument.

15 cl, 20 dwg